WO2022041564A1 - 涡旋压缩机 - Google Patents

涡旋压缩机 Download PDF

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Publication number
WO2022041564A1
WO2022041564A1 PCT/CN2020/134989 CN2020134989W WO2022041564A1 WO 2022041564 A1 WO2022041564 A1 WO 2022041564A1 CN 2020134989 W CN2020134989 W CN 2020134989W WO 2022041564 A1 WO2022041564 A1 WO 2022041564A1
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WO
WIPO (PCT)
Prior art keywords
scroll
hole
plate
discharge space
discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/134989
Other languages
English (en)
French (fr)
Inventor
黄柏英
饗场靖
新宅秀信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Midea Environmental Technologies Co Ltd
Original Assignee
Guangdong Midea Environmental Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010900752.9A external-priority patent/CN111878395B/zh
Priority claimed from CN202021863999.XU external-priority patent/CN212296866U/zh
Application filed by Guangdong Midea Environmental Technologies Co Ltd filed Critical Guangdong Midea Environmental Technologies Co Ltd
Priority to EP20951231.8A priority Critical patent/EP4184010B1/en
Priority to CA3188503A priority patent/CA3188503A1/en
Priority to KR1020237005743A priority patent/KR102738015B1/ko
Publication of WO2022041564A1 publication Critical patent/WO2022041564A1/zh
Priority to US18/114,550 priority patent/US12085077B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/102Disc valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/102Disc valves
    • F04B53/103Flat-annular type disc valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253Details concerning the base
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008Hermetic pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F04C29/126Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/105Three-way check or safety valves with two or more closure members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/021Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/023Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/1401Check valves with flexible valve members having a plurality of independent valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/80Other components
    • F04C2240/806Pipes for fluids; Fittings therefor

Definitions

  • the present application relates to the field of compressors, in particular to a scroll compressor.
  • the static scroll of the scroll compressor is provided with a check valve to avoid the backflow of the discharged refrigerant and the wear and abnormal sound caused by the high-speed rotation of the scroll.
  • the present application aims to solve at least one of the technical problems existing in the prior art.
  • some embodiments of the present application provide a scroll compressor.
  • the present application proposes a scroll compressor, comprising: a casing; The plate is provided with a first through hole to connect the suction space and the discharge space; the frame is located inside the casing and located in the suction space, and the frame and the isolation plate are arranged at intervals; the movable scroll is movably arranged on the frame; The stationary scroll is arranged on the frame and is matched with the movable scroll.
  • the stationary scroll is provided with a second through hole, and the second through hole is communicated with the discharge space; the pressure relief low-return structure is arranged on the stationary scroll, The pressure relief low-back structure is configured to be able to communicate with the second through hole and the discharge space.
  • the isolation plate divides the casing into a suction space and a discharge space, and a first through hole is arranged on the isolation plate to communicate the suction space and the discharge space, and the movable scroll and the static Under the compression operation of the scroll, the refrigerant in the suction space is compressed and discharged into the discharge space.
  • the fixed scroll is further provided with a pressure relief low return structure, and the pressure relief low return structure can communicate with the second through hole and the discharge space. That is, after the scroll compressor is stopped, after the second through hole discharges the refrigerant to the discharge space, since the refrigerant in the discharge space is the compressed refrigerant, the pressure in the discharge space is usually higher than that of the movable scroll and the stationary scroll.
  • the residual refrigerant of the pressure between the discs, and then the pressure in the discharge space can be returned between the movable scroll and the fixed scroll through the second through hole under the action of pressure, or even if the pressure in the discharge space
  • the residual refrigerant that is less than the pressure between the movable scroll and the stationary scroll can also enter the discharge space through the second through hole under the action of the pressure, thereby making the movable scroll and the stationary scroll.
  • the scroll rotates at a low speed to avoid wear and abnormal sound caused by the high-speed rotation of the movable scroll, and balances the pressure difference between the movable scroll and the fixed scroll and between the discharge space, that is, the discharge space and the suction space. Therefore, when the scroll compressor is started here, the resistance of refrigerant discharge is reduced, and the start-up performance of the scroll compressor is improved.
  • scroll compressor proposed according to the present application may also have the following additional technical features:
  • the pressure relief low-return structure includes: a first slideway, which is arranged on the stationary scroll and located between the stationary scroll and the isolation plate; the pressure relief low-return plate is slidably arranged on the first slide. In a slideway, and can be in contact with the stationary scroll, when the pressure relief low return plate is in contact with the stationary scroll, the passing area between the discharge space and the second through hole is reduced.
  • the pressure relief low return structure includes a first slideway and a pressure relief low return plate.
  • the pressure relief low-return plate can slide in the first slideway and counteract the stationary scroll, wherein when the pressure relief low-return plate is in contact with the stationary scroll, the passing area between the discharge space and the second through hole is reduced, Therefore, the amount of refrigerant discharged from the discharge space to the second through hole is limited, thereby ensuring the low-speed rotation effect of the movable scroll, reducing abnormal noise and wear, and ensuring that the compressor is in normal operation. normal operation of the machine.
  • the pressure relief low return plate does not receive force. offset by the stationary scroll. At this time, a large passing area is maintained between the discharge space and the second through hole, thereby facilitating the discharge of the compressed refrigerant.
  • the pressure in the discharge space will be higher than the pressure between the orbiting scroll and the fixed scroll due to the decrease in the pressure between the orbiting scroll and the fixed scroll.
  • pressure which in turn presses the pressure relief low return plate against the stationary scroll.
  • a small passing area is maintained between the discharge space and the second through hole, and only a small part of the refrigerant in the discharge space will flow back between the movable scroll and the stationary scroll, thereby ensuring that the movable scroll and the stationary scroll
  • the amount of refrigerant suction between the scrolls to ensure the normal operation of the scroll compressor.
  • the pressure relief low return plate is provided with a third through hole and a fourth through hole, and when the pressure relief low return plate is in contact with the stationary scroll, the stationary scroll blocks the third through hole. a through hole, and the fourth through hole communicates with the second through hole and the discharge space.
  • the pressure relief low return plate is provided with a third through hole and a fourth through hole.
  • the stationary scroll blocks the third through hole, thereby realizing In order to control the change of the passing area, the structure is simple and the effect is stable.
  • the number of the third through holes and/or the fourth through holes is multiple, and the multiple third through holes are located on the peripheral side of the fourth through holes.
  • the third through hole is located on the peripheral side of the fourth through hole, and the second through hole is used as the discharge channel of the refrigerant. Part of the third through hole will be blocked, thereby reducing the passing area between the second through hole and the discharge space.
  • the provision of the third passage can ensure that the second through hole has a sufficient passage area when discharging the refrigerant to the discharge space, so as to facilitate the discharge of the refrigerant, so that when the refrigerant in the discharge space returns, it has a small enough passage area to reduce the impact on the discharge space.
  • the influence of the refrigerant sucked by the movable scroll and the stationary scroll ensures the normal operation of the scroll compressor.
  • the end of the first slideway facing away from the fixed scroll is provided with a first limit portion, the first limit portion can be in contact with the pressure relief low return plate, and the first limit portion is connected to the first limit portion.
  • the third through hole and the fourth through hole communicate with the second through hole and the discharge space.
  • the end of the first slideway away from the fixed scroll is provided with a first limiting portion, which further limits the pressure relief low return plate when the movable scroll and the fixed scroll discharge refrigerant.
  • the third through hole and the fourth through hole communicate with the second through hole and the discharge space at the same time, thereby ensuring that the movable scroll and the fixed scroll discharge refrigerant when the refrigerant is discharged. , there is a larger passing area between the second through hole and the discharge space.
  • it further includes: a back pressure plate, which is arranged on the stationary scroll, and the first slideway is arranged on the back pressure plate; a floating plate, which is movably connected to the back pressure plate, and the stationary scroll and the back pressure plate.
  • a chamber is formed with the floating plate, the fixed scroll is provided with a fifth through hole, and the opening of the fifth through hole is located in the chamber.
  • the scroll compressor is also provided with a back pressure plate and a floating plate, the fixed scroll, the back pressure plate and the floating plate form a chamber, and the chamber communicates with the movable scroll and the fixed scroll through the fifth through hole between the intermediate pressure chambers.
  • the orbiting scroll and the fixed scroll compress the refrigerant
  • the refrigerant will pressurize the chamber to make the floating plate move, and the floating plate is restricted by the isolation plate, thereby forcing the fixed scroll to press the orbiting scroll, Therefore, the sealing between the movable scroll and the fixed scroll is increased, the compression effect of the movable scroll and the stationary scroll on the refrigerant is improved, and the efficiency of the scroll compressor is improved.
  • it further includes: a discharge pipe, which is connected to the casing, and communicates with the discharge space; and a non-return module, which is arranged on the discharge pipe.
  • the scroll compressor further includes a discharge pipe that communicates with the discharge space, and after the orbiting scroll and the fixed scroll discharge the refrigerant to the discharge space, the refrigerant in the discharge space is discharged from the discharge pipe.
  • a non-return module is installed in the discharge pipe, so that the refrigerant in the discharge space is discharged through the discharge pipe to avoid the backflow of the refrigerant, and when the scroll compressor is stopped, the discharge space is not communicated with the downstream equipment, thereby ensuring the discharge space.
  • the amount of refrigerant inside is fixed, thereby improving the balance effect of the discharge space and the pressure difference between the movable scroll and the fixed scroll.
  • the non-return module includes: a second slideway, located on the discharge pipe; a first non-return plate, fixed on one end of the second slideway; a second limit part, set on the first The other end of the two slideways; the second check plate, which is slidably arranged in the second slideway, and the first check plate and the second check plate are configured to be able to open or block the discharge pipe.
  • the check module includes a second slideway, a first check plate, and a second check plate.
  • the first check plate is fixed on one end of the second slideway, and the other end of the second slideway is provided with a second limit portion, and the second check plate can be located between the first check plate and the second limit portion. move between.
  • the second non-return plate when the discharge space discharges refrigerant to the discharge pipe, the second non-return plate is forced against the second limiting portion. At this time, the discharge space communicates with the discharge pipe, which is convenient for the discharge space to discharge the refrigerant to the discharge pipe. After the discharge space completes the discharge of the refrigerant or when the scroll compressor is stopped, the second check plate can be pressed against the first check plate by the force outside the discharge pipe. At this time, the space between the discharge space and the discharge pipe is blocked. , to avoid the refrigerant backflow of the downstream equipment, to maintain the relative independence of the discharge space, and to balance the pressure difference between the discharge space and the movable scroll and the stationary scroll, that is, to balance the pressure difference between the discharge space and the suction space.
  • the first non-return plate is provided with a sixth through hole
  • the second non-return plate is provided with a seventh through hole, when the first non-return plate and the second non-return plate are sealed
  • the first non-return plate blocks the seventh through hole
  • the second non-return plate blocks the sixth through hole
  • the first non-return plate is provided with a sixth through hole
  • the second non-return plate is provided with a seventh through hole.
  • the discharge pipe includes: a first pipe, arranged in the casing, the first non-return plate is fixed to the first pipe; a second pipe, a part of the second pipe is arranged in the first pipe, the first pipe is The two limiting parts are arranged on the second pipe, and the second non-return plate is located between the first non-return plate and the second pipe.
  • the discharge pipe forms a structure of a sleeve, and the first pipe is sleeved on the outside of part of the second pipe, thereby facilitating the installation and maintenance of the non-return module.
  • FIG. 1 is a schematic structural diagram of a scroll compressor provided by an embodiment of the present application.
  • Fig. 2 is a partial enlarged view of the place A in the scroll compressor shown in Fig. 1;
  • FIG. 3 is a schematic structural diagram of a stationary scroll, a back pressure plate, and a pressure relief low-return structure in a scroll compressor provided by an embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of some components in a scroll compressor provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a pressure relief low return plate in a scroll compressor provided by an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a non-return module in a scroll compressor provided in an embodiment of the present application in one state;
  • FIG. 7 is a schematic structural diagram of a non-return module in a scroll compressor provided by an embodiment of the present application in another state.
  • 100 scroll compressor 110 casing, 120 isolation plate, 122 first through hole, 130 frame, 132 first frame, 134 second frame, 142 orbiting scroll, 144 stationary scroll, 1442 first Second through hole, 1444 fifth through hole, 150 pressure relief low return structure, 152 first slideway, 154 pressure relief low return plate, 1542 third through hole, 1544 fourth through hole, 156 first limit part, 160 back pressure plate , 170 floating plate, 180 discharge pipe, 182 first pipe, 184 second pipe, 190 check module, 192 second slideway, 194 first check plate, 1942 sixth through hole, 196 second limit part, 198 second check plate, 1982 seventh through hole, 210 suction space, 220 discharge space, 230 motor structure, 232 shaft, 240 suction pipe, 250 suction chamber, 260 intermediate pressure chamber, 270 discharge chamber, 280 chamber.
  • the scroll compressor 100 provided according to some embodiments of the present application will be described below with reference to FIGS. 1 to 7 .
  • an embodiment of the present application provides a scroll compressor 100 , and the scroll compressor 100 includes: a casing 110 , an isolation plate 120 , a frame 130 , Orbiting scroll 142 and fixed scroll 144 .
  • the casing 110 defines the internal space of the scroll compressor 100, and a partition plate 120 is arranged inside the casing 110, and the partition plate 120 is used to divide the internal space of the scroll compressor 100 into a suction space 210 and a discharge space 220.
  • the suction space 210 is used for accommodating uncompressed refrigerant
  • the discharge space 220 is used for accommodating compressed refrigerant.
  • the movable scroll 142 and the fixed scroll 144 are cooperatively disposed in the suction space 210 .
  • the orbiting scroll 142 and the fixed scroll 144 may cooperate and form: a suction chamber 250 , an intermediate pressure chamber 260 and a discharge chamber 270 .
  • the movable scroll 142 is dynamic, and the fixed scroll 144 is static.
  • the refrigerant is sucked through the suction chamber 250, and then the refrigerant is compressed through the intermediate pressure chamber 260, and finally The compressed refrigerant is discharged into the discharge chamber 270 to discharge the refrigerant, thereby completing a compression operation.
  • the partition plate 120 is provided with a first through hole 122, which communicates with the suction space 210 and the discharge space 220, and a second through hole 1442 is provided on the fixed scroll 144, and the second through hole 1442 communicates with the discharge chamber 270, and then passes through the movable scroll.
  • the refrigerant compressed by the disk 142 and the fixed scroll 144 can be discharged to the first through hole 122 through the second through hole 1442, and then discharged to the discharge space through the first through hole 122, thereby completing the discharge of the refrigerant.
  • a pressure relief low return structure 150 is further provided between the second through hole 1442 of the fixed scroll 144 and the first through hole 122 of the isolation plate 120 , and the pressure relief low return structure 150 is always The second through hole 1442 and the discharge space 220 are communicated.
  • the pressure in the discharge space 220 will be higher than the pressure between the movable scroll 142 and the fixed scroll 144, and the refrigerant in the discharge space 220 will flow back to the movable scroll 142 through the pressure relief low-return structure 150 and the fixed scroll 144, specifically the discharge chamber 270, and then backflow from the discharge chamber 270 to the suction space 210, so that the movable scroll 142 rotates at a low speed, so as to avoid the wear and abnormal sound caused by the high-speed rotation of the movable scroll 142,
  • the pressure difference between the discharge space 220 and the movable scroll 142 and the fixed scroll 144 specifically, the pressure difference between the discharge space 220 and the suction space 210 is balanced.
  • the pressure relief low-return structure 150 further includes: a first slideway 152 and a pressure-relief low-return plate 154 that can slide in the first slideway 152 .
  • the pressure relief low return plate 154 is pushed away from the fixed scroll 144 by the thrust of the refrigerant. At this time, a large passing area is maintained between the second through hole 1442 and the third through hole 1542 , so that the refrigerant can quickly enter the discharge space 220 from the second through hole 1442 through the third through hole 1542 .
  • the pressure in the discharge space 220 is greater than the pressure between the movable scroll 142 and the fixed scroll 144, specifically, the pressure in the discharge space 220 The pressure is greater than the pressure in the discharge chamber 270 .
  • the pressure relief low return plate 154 is forced against the stationary scroll 144, thereby reducing the passing area between the second through hole 1442 and the second through hole 1442, that is, reducing the discharge space 220 and the second through hole
  • the amount of refrigerant between 1442 that can pass through thereby ensuring the low-speed rotation effect of the orbiting scroll 142, reducing abnormal noise and wear, and preventing a large amount of refrigerant in the discharge space 220 from flowing back and affecting the orbiting scroll 142 and the fixed scroll.
  • the effect of inhaling the refrigerant in 144 and the abnormal noise and wear caused by the high-speed rotation of the movable scroll 142 thereby ensuring the normal operation of the scroll compressor 100.
  • the scroll compressor 100 when the scroll compressor 100 is started, the resistance to the discharge of refrigerant from the movable scroll 142 and the fixed scroll 144 is reduced, so that when the scroll compressor 100 is running, the movable scroll The orbiting plate 142 and the fixed scroll plate 144 can smoothly inhale the refrigerant, which ensures the normal operation of the scroll compressor 100 and avoids abnormal noise and wear caused by the high-speed rotation of the orbiting scroll plate 142 .
  • the shape of the pressure relief low return plate 154 can be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a polygon, and the like.
  • Embodiment 1 As shown in FIG. 5 , on the basis of Embodiment 1 or Embodiment 2, further, there are multiple channels on the pressure relief low return plate 154 . When the pressure relief low return plate 154 abuts against the stationary scroll 144, part of the passage may be blocked.
  • holes are formed on the pressure relief low return plate 154, the holes include a third through hole 1542 and a fourth through hole 1544.
  • the stationary scroll 144 can be blocked In the third through hole 1542 , only the fourth through hole communicates with the second through hole 1442 and the third through hole 1542 .
  • the cross-sectional area of the pressure relief low return plate 154 is larger than the cross-sectional area of the second through hole 1442 . That is, the pressure relief low return plate 154 can be placed on the edge of the second through hole 1442 , and the third through hole 1542 is disposed at a position blocked by the edge of the second through hole 1442 .
  • both the third through hole 1542 and the fourth through hole 1544 serve as the circulation channel of the refrigerant, so as to provide a larger passage area for the refrigerant, thereby facilitating the rapid discharge of the refrigerant from the movable scroll 142 and the fixed scroll 144 .
  • the pressure relief low return plate 154 receives the pressure from the discharge space 220 and is pushed to the fixed scroll 144 and counteracts the fixed scroll 144 .
  • the third through hole 1542 is blocked by the fixed scroll 144 at the edge of the second through hole 1442, leaving only the fourth through hole 1544 as a refrigerant circulation channel, so as to provide one or more refrigerants for the backflow.
  • the smaller passing area prevents a large amount of refrigerant from flowing back from the discharge space 220 to between the movable scroll 142 and the stationary scroll 144, thereby ensuring the amount of refrigerant sucked into the movable scroll 142 and the stationary scroll 144. , to avoid abnormal noise and wear caused by the high-speed rotation of the movable scroll 142 , thereby improving the start-up performance of the scroll compressor 100 and ensuring the normal operation of the scroll compressor 100 .
  • the fourth through hole 1544 on the pressure relief low return plate 154 can be arranged in the middle position of the pressure relief low return plate 154 , and the third through hole 1542 can be arranged around the The peripheral side of the fourth through hole 1544 .
  • the number of the third through holes 1542 and the fourth through holes 1544 may be one or more.
  • Disposing the third through hole 1542 on the peripheral side of the fourth through hole 1544 is more convenient for the fixed scroll 144 to block the third through hole 1542 .
  • the specific number of the third through holes 1542 can be set according to the displacement of the scroll compressor 100, for example, two, three, four, five, six, etc.
  • the shape of the third through hole 1542 can also be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a square, a polygon, a waist circle, and the like.
  • the specific number of the fourth through holes 1544 can be arbitrarily set according to the actual situation, for example, one, two, three and so on.
  • the shape of the fourth through hole 1544 can also be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a square, a polygon, a waist circle, and the like.
  • a plurality of third through holes 1542 may be disposed around a fourth through hole 1544
  • a plurality of third through holes may be disposed around a plurality of fourth through holes 1544
  • a third through hole 1542 may be disposed On the peripheral side of the plurality of fourth through holes 1544
  • one third through hole 1542 may also be disposed on the peripheral side of one fourth through hole 1544 .
  • the fourth through holes 1544 are arranged concentrically with the pressure relief low return plate 154 , and four third through holes 1542 are arranged on the peripheral side of the fourth passage.
  • the contour of the third through hole 1542 is a multi-segment curve, specifically, four-segment curves, the first-segment curve is opposite to the third-segment curve, and the second-segment curve is opposite to the fourth-segment curve.
  • the first curve is facing the fourth through hole 1544, then the first curve and the third end curve are concentric with the outer circumference of the pressure relief low return plate 154, and the second curve and the fourth curve are the first curve and the third end
  • the arc of the difference between the radius of the curve and the diameter, the concave surfaces of the second curve and the fourth curve are opposite.
  • the area of the third through hole 1542 is increased, the through hole area of the movable scroll 142 and the fixed scroll 144 when the refrigerant is discharged is increased, and the discharge space 220 is reduced to the space between the movable scroll 142 and the fixed scroll 144.
  • the passage area of the reflux refrigerant improves the start-up performance of the scroll compressor 100 and avoids abnormal noise and wear caused by the high-speed rotation of the movable scroll 142 , and at the same time ensures the normal operation of the scroll compressor 100 .
  • the pressure relief low return plate 154 further includes a first limiting portion 156 , and the first limiting portion 156 is disposed at The first slideway 152 is located at one end of the first slideway 152 away from the fixed scroll 144 .
  • the pressure relief low return plate 154 and the first limiting portion 156 are offset, thereby limiting a stroke for the pressure relief low return plate 154, thereby ensuring low pressure relief.
  • the return plate 154 can quickly act accordingly to reduce the delay of the pressure relief low return plate 154 during state switching, improve the check effect of the pressure relief low return plate 154 , and ensure the normal operation of the scroll compressor 100 .
  • the first limiting portion 156 is in contact with the outer peripheral side of the third through hole 1542 on the pressure relief low return plate 154, thereby ensuring that the first limiting portion 156 will not block the third through hole 1542, thereby ensuring that the movable scroll When the disk 142 and then the fixed scroll 144 discharges the refrigerant, the pressure is released to reduce the passing area of the return plate 154 .
  • the scroll compressor 100 further includes: a back pressure plate 160 and a back pressure plate 160 .
  • Float 170 The stationary scroll 144 , the back pressure plate 160 and the floating plate 170 form a chamber 280 , and the chamber 280 communicates with the intermediate pressure chamber 260 through the fifth through hole 1444 provided on the stationary scroll 144 .
  • the refrigerant in the intermediate pressure chamber 260 is under pressure, and is introduced into the chamber 280 through the fifth through hole 1444, thereby causing the floating plate 170 to float upward.
  • the isolation plate 120 restricts the movement of the floating plate 170, so that the pressure in the chamber 280 will act on the stationary scroll 144, thereby pressing the stationary scroll 144 toward the movable scroll 142, thereby ensuring
  • the tight connection between the movable scroll 142 and the fixed scroll 144 ensures the independence of the suction chamber 250 , the intermediate pressure chamber 260 and the discharge chamber 270 , thereby improving the compression effect and compression efficiency of the scroll compressor 100 .
  • the first slideway 152 is disposed on the back pressure plate 160 on the middle channel of the back pressure plate 160 .
  • a groove is provided at the end of the fixed scroll 144 away from the movable scroll 142, and a back pressure plate 160 is provided in the groove, and the back There is a gap between the pressing plate 160 and the side wall of the groove, and a floating plate 170 is covered on the gap.
  • a groove is provided at the end of the fixed scroll 144 away from the movable scroll 142, the inner side wall of the groove is the first wall, the back pressure plate 160 is arranged in the groove, and the outer side wall of the back pressure plate 160 is The second wall, the first wall and the second wall are opposite to each other and have a gap, and the two sides of the floating plate 170 are movably connected to the first wall and the second wall respectively, and then the fixed scroll 144 , the back pressure plate 160 and the floating plate 170 Under the enclosure, a chamber 280 is formed.
  • the back pressure plate 160 is disposed in the groove of the fixed scroll 144, the outer wall of the entire fixed scroll 144 is integrated, thereby enhancing the airtightness between the discharge chamber 270 and the suction chamber 250, and further Improved compression efficiency.
  • first sealing member is provided between the floating plate 170 and the fixed scroll 144
  • second sealing member is provided between the floating plate 170 and the back pressure plate 160 .
  • back pressure plate 160 is attached to the fixed scroll 144 with screws, and a third seal is provided between the fixed scroll 144 and the back pressure plate 160 .
  • the scroll compressor 100 further includes: a discharge pipe 180 and a discharge pipe Check module 190 of 180 .
  • the non-return module 190 is disposed in the discharge pipe 180.
  • the non-return module 190 communicates and opens the discharge pipe 180, so that the refrigerant can smoothly enter the downstream equipment through the discharge pipe 180.
  • the pressure in the downstream equipment will be greater than the pressure in the discharge space 220 due to the decrease in pressure in the discharge space 220.
  • the non-return module 190 blocks the discharge Pipe 180 to avoid refrigerant backflow from downstream equipment.
  • the pressure in the discharge space 220 is reduced, and the check module 190 is subjected to the pressure in the downstream equipment at this time.
  • the discharge pipe 180 will be blocked, thereby ensuring that the pressure in the discharge space 220 will not increase, which is more conducive to the balance between the pressure in the discharge space 220 and the pressure in the suction space 210, and avoids the high-speed rotation of the movable scroll 142.
  • the resulting abnormal sound and wear further improve the start-up performance of the scroll compressor 100 .
  • the non-return module 190 further includes: a second slideway 192 , a first non-return plate 194 , a second limit portion 196 and a second non-return board 198.
  • a second slideway 192 is provided in the discharge pipe 180 , the first check plate 194 is fixed in the second slideway 192 , located at the end of the second slideway 192 facing the discharge space 220 , and at the end of the second slideway 192 .
  • the other section is provided with a second limiting portion 196 .
  • the second check plate 198 can slide in the second slideway 192 between the first check plate 194 and the second limiting portion 196 .
  • the refrigerant when the orbiting scroll 142 and the stationary scroll 144 discharge the refrigerant, the refrigerant enters the discharge space 220 through the pressure relief low-return structure 150 , and enters the discharge pipe 180 from the discharge space 220 through the check module 190 , so as to discharge the refrigerant to the downstream equipment.
  • the pressure relief low return plate 154 abuts against the first limiting portion 156
  • the third through hole 1542 and the fourth through hole 1544 pass the refrigerant at the same time
  • the second non-return plate 198 abuts against the second limiting portion 196 .
  • the refrigerant can be discharged from the non-return module 190 through the discharge pipe 180 to complete the discharge of the refrigerant.
  • the refrigerant in the downstream equipment will discharge the refrigerant to the second
  • the check plate 198 is pushed toward the first check plate 194 , so that the second check plate 198 and the first check plate 194 are abutted to block the discharge pipe 180 , so that the pressure in the discharge space 220 can only be lowered by the pressure relief plate 154
  • the fourth through hole 1544 on the upper part enters the second through hole 1442 and enters between the movable scroll 142 and the fixed scroll 144 , thereby further improving the start-up performance of the scroll compressor 100 .
  • the shape of the first non-return plate 194 can be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a polygon, and the like.
  • the shape of the second non-return plate 198 can be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a polygon, and the like.
  • a sixth through hole 1942 is opened on the first non-return plate 194
  • a seventh through hole 1982 is opened on the second non-return plate 198 .
  • the sixth through hole 1942 and the seventh through hole 1982 are staggered, and there is no intersection. Further, the first check plate 194 and the second check plate 198 are abutted against the first check plate 194 and the second check plate 198 to form a closed structure, thereby ensuring that the refrigerant cannot pass through. As shown in FIG. 7 , after the first non-return plate 194 and the second non-return plate 198 are separated, the sixth through hole 1942 and the seventh through hole 1982 can pass the refrigerant.
  • the specific number of the sixth through holes 1942 may be set according to the displacement of the scroll compressor 100 , for example, two, three, four, five, six, and the like.
  • the shape of the seventh through hole 1982 can also be set according to the displacement of the scroll compressor, for example, a circle, an ellipse, a square, a polygon, a waist circle, and the like.
  • the specific number of the sixth through holes 1942 can be set according to the displacement of the scroll compressor 100, for example: one, two, three, etc.
  • the shape of the seventh through hole 1982 can also be arbitrarily set according to the actual situation, for example, a circle, an ellipse, a square, a polygon, a waist circle, and the like.
  • the sixth through hole 1942 may be disposed at a position away from the center of the first non-return plate 194
  • the seventh through hole 1982 may be disposed at a position in the center of the second non-return plate 198 .
  • a plurality of sixth through holes 1942 surround the outer position of the center point of the first non-return plate 194 and are located on the second non-return plate.
  • a seventh through hole 1982 is provided in the middle position of 198 .
  • the outline of the sixth through hole 1942 is a multi-segment curve, specifically, a four-segment curve, the first-segment curve is opposite to the third-segment curve, and the second-segment curve and the fourth-segment curve are opposite.
  • the first section of the curve faces the fourth through hole 1544, then the first section of the curve and the third end curve are concentric with the outer circumference of the first check plate 194, and the second section of the curve and the fourth section of the curve are the first section of the curve and the third section of the curve.
  • the arc of the end curve radius difference diameter, the concave surface of the second curve and the fourth curve are opposite.
  • the refrigerant when the movable scroll 142 and the fixed scroll 144 discharge the refrigerant, the refrigerant enters the discharge space 220 through the pressure relief low-return structure 150, and enters the discharge pipe 180 from the discharge space 220 through the non-return module 190, thereby discharging the refrigerant to the downstream. equipment.
  • the pressure relief low return plate 154 abuts against the first limiting portion 156
  • the third through hole 1542 and the fourth through hole 1544 pass the refrigerant at the same time
  • the second non-return plate 198 abuts against the second limiting portion 196 .
  • the refrigerant can be discharged through the discharge pipe 180 through the sixth through hole 1942 on the first check plate 194 and the seventh through hole 1982 on the second check plate 198 to complete the discharge of the refrigerant.
  • the scroll compressor 100 When the scroll compressor 100 is stopped, or the movable scroll 142 and the fixed scroll 144 discharge the refrigerant, and the discharge space 220 discharges the refrigerant to the discharge pipe 180 , the refrigerant in the downstream equipment will push the second check plate 198 toward the
  • the first non-return plate 194 makes the second non-return plate 198 and the first non-return plate 194 abut against each other, and then the sixth through hole 1942 and the seventh through hole 1982 are closed, and then the discharge pipe 180 is blocked, so that the discharge space 220 is
  • the pressure can only enter the second through hole 1442 through the fourth through hole 1544 on the pressure relief low return plate 154, and enter between the movable scroll 142 and the fixed scroll 144, further increasing the gap between the discharge space 220 and the suction space 210.
  • the effect of the pressure balance between the two can further improve the start-up performance of the scroll compressor 100 .
  • the discharge pipe 180 includes a first pipe 182 and a second pipe 184 partially penetrated in the first pipe .
  • first pipe 182 is connected with the casing 110
  • second pipe 184 is connected with the first pipe 182 .
  • the end of the second pipe 184 located inside the first pipe 182 can be used as the second limiting portion 196, thereby saving production difficulty.
  • a second slideway 192 is formed on the inside of the first tube 182
  • the first check plate 194 is disposed on the side of the first tube 182 away from the second tube 184
  • the second check plate 198 is located in the first tube 182 and can be Slide inside the first tube 182 .
  • the scroll compressor 100 further includes a motor structure 230 , and the motor structure 230 has a rotating shaft 232 .
  • the rotating shaft 232 is connected with the movable scroll 142 to drive the movable scroll 142 to move.
  • the frame 130 includes a first frame 132 and a second frame 134 , the movable scroll 142 and the fixed scroll 144 are arranged on the first frame 132 , and the motor structure 230 is arranged at the second frame 134 .
  • the rotation of the rotating shaft 232 in the motor structure 230 drives the movable scroll 142 to move around the rotating shaft 232 , thereby realizing the compression operation of the scroll compressor 100 .
  • the scroll compressor 100 further includes a suction pipe 240 that communicates with the suction space 210 .
  • the suction pipe 240 is connected to the above equipment, thereby realizing the suction of the refrigerant into the compressor.
  • the present application provides a scroll compressor 100 , which includes a casing 110 , a first frame 132 and a second frame 134 , a motor structure 230 is arranged in the casing 110 , and The movable scroll 142 and the stationary scroll 144 are arranged axially above the first frame.
  • the isolation plate 120 is divided into a suction space 210 and a discharge space 220 in the interior of the casing 110.
  • the scroll 142 runs, and the movable scroll 142 and the stationary scroll 144 form a suction chamber 250, an intermediate pressure chamber 260 and a discharge chamber 270 along the set trajectory, and the stationary scroll 144 is opened with holes to communicate with the intermediate pressure chamber
  • the second through hole 1442 is discharged into the discharge space 220 in the scroll compressor 100 and then discharged from the scroll compressor 100 through the discharge pipe 180 .
  • the pressure relief low return plate 154 is provided at the discharge port of the fixed scroll 144, which effectively prevents the refrigerant from being discharged from the fixed scroll 144 due to the pressure difference when the scroll compressor 100 is stopped, and then backflowing to the movable scroll 142 and the stationary scroll 142. Between the scrolls 144, the orbiting scroll 142 and the fixed scroll 144 are rapidly reversed, resulting in abnormal noise and wear.
  • the pressure relief low return plate 154 also communicates between the discharge space 220 and the fixed scroll 144 and the movable scroll 142 , so as to balance the pressure between the discharge space 220 and the movable scroll 142 and the fixed scroll 144 Therefore, when the scroll compressor 100 starts up again, the discharge pressure resistance of the orbiting scroll 142 and the fixed scroll 144 can be reduced, thereby improving the start-up performance of the scroll compressor 100 .
  • the pressure relief low return plate 154 has the advantages of simple structure and low manufacturing cost.

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Abstract

一种涡旋压缩机(100),包括:机壳(110);隔离板(120),设于机壳内部,将机壳内部分为吸入空间(210)和排放空间(220),隔离板上设有第一通孔(122),以连通吸入空间与排放空间;机架(130),设于机壳内部位于吸入空间,机架和隔离板间隔设置;动涡旋盘(142),可活动地设于机架;静涡旋盘(144),设于机架,与动涡旋盘相配合,静涡旋盘设置有第二通孔(1442),第二通孔与排放空间相连通;泄压低回结构(150),设于静涡旋盘,泄压低回结构被配置为能够连通第二通孔和排放空间。涡旋压缩机停机时让动涡旋盘低速回转,平衡中间压力室(260)和排放空间之间的压差,避免动涡旋盘高速回转而产生磨损和异音,并且,再启动时可以将冷媒顺利的排入排放空间,提升涡旋压缩机的启动性能。

Description

涡旋压缩机
本申请要求于2020年08月31日提交中国专利局、申请号为“202010900752.9”、申请名称为“涡旋压缩机”的中国专利申请的优先权,以及,于2020年08月31日提交中国专利局、申请号为“202021863999.X”、申请名称为“涡旋压缩机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及压缩机领域,具体而言涉及一种涡旋压缩机。
背景技术
相关技术中,涡旋压缩机的静态涡旋盘上,通过设置有止回阀,以避免排放出的冷媒回流,以及涡旋盘高速回转而产生磨损和异音。
但是,压缩机停机时由于止回阀完全隔绝了涡旋压缩机的中间压力室和排放空间,进而导致再启动时需要较大的启动转矩,进而导致涡旋压缩机的启动困难影响压缩机正常运行。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。
为此,本申请一些实施例提供了一种涡旋压缩机。
有鉴于此,根据本申请的一些实施例,本申请提出了一种涡旋压缩机,包括:机壳;隔离板,设于机壳内部,将机壳内部分为吸入空间和排放空间,隔离板上设有第一通孔,以连通吸入空间与排放空间;机架,设于机壳内部位于吸入空间,机架和隔离板间隔设置;动涡旋盘,可活动地设于机架;静涡旋盘,设于机架,与动涡旋盘相配合,静涡旋盘设置有第二通孔,第二通孔与排放空间相连通;泄压低回结构,设于静涡旋盘,泄压低回结构被配置为能够连通第二通孔和排放空间。
本申请提出的涡旋压缩机,隔离板将机壳分成吸入空间和排放空间,并在 隔离板上设置第一通孔,以使吸入空间和排放空间相连通,并在动涡旋盘和静涡旋盘的压缩作业下,将吸入空间内的冷媒压缩并排放进入排放空间。
进一步,在静涡旋盘还设置有泄压低回结构,并且,泄压低回结构可以连通第二通孔和排放空间。即在涡旋压缩机停机后,第二通孔向排放空间排放冷媒后,由于排放空间内的冷媒是压缩后的冷媒,因此,排放空间内的压力通常是大于动涡旋盘和静涡旋盘之间的压力的,进而排放空间内的压力的残余冷媒可在压力的作用下,通过第二通孔回到动涡旋盘和静涡旋盘之间,或者,即使排放空间内的压力小于动涡旋盘和静涡旋盘之间的压力,动涡旋盘和静涡旋盘内的压力的残余冷媒也可在压力的作用下,通过第二通孔进入排放空间,进而使得动涡旋盘低速回转,避免动涡旋盘高速回转而产生磨损和异音,平衡了动涡旋盘和静涡旋盘之间和排放空间之间的压差,即平衡了排放空间和吸入空间的压差,进而在涡旋压缩机在此启动时,降低冷媒的排放的阻力,提升了涡旋压缩机的启动性能。
另外,根据本申请提出的涡旋压缩机,还可以具有如下附加技术特征:
在一种可能的设计中,进一步地,泄压低回结构包括:第一滑道,设于静涡旋盘,位于静涡旋盘与隔离板之间;泄压低回板,可滑动地设于第一滑道内,并可与静涡旋盘相抵,在泄压低回板与静涡旋盘相抵的情况下,减小排放空间和第二通孔之间的通过面积。
在该设计中,泄压低回结构包括第一滑道和泄压低回板。泄压低回板可在第一滑道内滑动,并与静涡旋盘相抵,其中,在泄压低回板与静涡旋盘相抵时,排放空间和第二通孔之间的通过面积减小,从而限制排放空间向第二通孔排出的冷媒量,进而保证动涡旋盘的低速回转效果,降低异音和磨损,确保压缩机在正常运行时,泄压低回结构的止回效果,保证压缩机的正常运行。
具体地,在动涡旋盘和静涡旋盘排出冷媒时,由于动涡旋盘和静涡旋盘之间压缩冷媒的压力高于排放空间内的压力,因此,泄压低回板受力不与静涡旋盘相抵。此时,排放空间和第二通孔之间保持一个较大的通过面积,进而便于压缩后的冷媒排出。
而动涡旋盘和静涡旋盘排出冷媒后,由于动涡旋盘和静涡旋盘之间的压力降低,排放空间内的压力会高于动涡旋盘和静涡旋盘之间的压力,进而将泄压 低回板压抵在静涡旋盘上。此时,排放空间和第二通孔之间保持一个较小的通过面积,排放空间内少部分冷媒才会回流至动涡旋盘和静涡旋盘之间,进而保证动涡旋盘和静涡旋盘之间的冷媒吸入量,以确保涡旋压缩机的正常运行。
并且,只有在涡旋压缩机停机时,由于动涡旋盘和静涡旋盘长时间不吸气,进而排放空间内的冷媒会大部分的流进吸入空间,以平衡压差,进而在压缩机再次启动时,所受到的阻力更小,并且,在压缩机运行时,排放空间内的冷媒不会大量的回流,保证了泄压低回结构的止回效果,提升涡旋压缩机的启动性能。
在一种可能的设计中,进一步地,泄压低回板设有第三通孔和第四通孔,在泄压低回板与静涡旋盘相抵的情况下,静涡旋盘封堵第三通孔,第四通孔连通第二通孔和排放空间。
在该设计中,泄压低回板上设置有第三通孔和第四通孔,在泄压低回板与静涡旋盘相抵的情况下,静涡旋盘封堵第三通孔,进而实现了对通过面积变化的控制,其结构简单,效果稳定。
在一种可能的设计中,进一步地,第三通孔和/或第四通孔的数量为多个,多个第三通孔位于第四通孔的周侧。
在该设计中,第三通孔位于第四通孔的周侧,而第二通孔作为冷媒的排出通道,在与泄压低回板相抵时,静涡旋盘位于第二通孔周侧的部分会将第三通孔封堵,进而实现减小第二通孔和排放空间之间的通过面积。
并且,设置第三通过可以保证第二通孔向排放空间排出冷媒时具有足够的通过面积,以便于排出冷媒,由使得在排放空间内的冷媒回流时,具有足够小的通过面积,以降低对动涡旋盘和静涡旋盘吸入冷媒的影响,保证涡旋压缩机的正常运行。
在一种可能的设计中,进一步地,第一滑道背离静涡旋盘的一端设有第一限位部,第一限位部可与泄压低回板相抵,在第一限位部与泄压低回板相抵的情况下,第三通孔和第四通孔连通第二通孔和排放空间。
在该设计中,第一滑道背离静涡旋盘的一端设有第一限位部,进而在动涡旋盘和静涡旋盘排出冷媒时,对泄压低回板进行限位。并且,在第一限位部与泄压低回板相抵时,第三通孔和第四通孔同时连通第二通孔和排放空间,进而 保证了动涡旋盘和静涡旋盘排出冷媒时,第二通孔和排放空间之间具有较大的通过面积。
在一种可能的设计中,进一步地,还包括:背压板,设于静涡旋盘,第一滑道设于背压板;浮板,与背压板可活动地连接,静涡旋盘、背压板与浮板形成腔室,静涡旋盘设有第五通孔,第五通孔的开口位于腔室内。
在该设计中,涡旋压缩机中还设置有背压板和浮板,静涡旋盘、背压板与浮板形成腔室,腔室通过第五通孔与动涡旋盘和静涡旋盘之间的中间压力室。
在动涡旋盘和静涡旋盘压缩冷媒时,冷媒会向腔室施压,以使浮板动作,而浮板受隔离板的限制,进而迫使静涡旋盘压向动涡旋盘,从而增加了动涡旋盘和静涡旋盘之间的密封性,提升了动涡旋盘和静涡旋盘对冷媒的压缩效果,提升了涡旋压缩机的效率。
在一种可能的设计中,进一步地,还包括:排出管,与机壳相连接,排出管与排放空间相连通;止回模块,设于排出管。
在该设计中,涡旋压缩机还包括排出管,排出管与排放空间相连通,进而在动涡旋盘和静涡旋盘向排放空间排放冷媒后,排放空间内的冷媒由排出管排出。并且,在排出管设置止回模块,进而在排放空间内的冷媒经由排出管排放后,避免冷媒的回流,进而在涡旋压缩机停机时,排放空间不与下游设备连通,进而保证了排放空间内的冷媒量的固定,从而提升了排放空间与动涡旋盘和静涡旋盘之间压差的平衡效果。
在一种可能的设计中,进一步地,止回模块包括:第二滑道,设于排出管;第一止回板,固定于第二滑道的一端;第二限位部,设于第二滑道的另一端;第二止回板,可滑动地设于第二滑道内,第一止回板和第二止回板被配置为能够开启或封堵排出管。
在该设计中,止回模块包括第二滑道、第一止回板和第二止回板。其中,第一止回板固定在第二滑道的一端,第二滑道的另一端设置有第二限位部,第二止回板可在第一止回板和第二限位部之间移动。
具体地,在排放空间向排出管排放冷媒时,第二止回板受力与第二限位部相抵,此时,排放空间与排出管之间连通,便于排放空间向排出管排放冷媒。在排放空间完成冷媒的排放后或涡旋压缩机停机时,第二止回板受排出管外部 的力,可与第一止回板相抵,此时,排放空间和排出管之间被封堵,避免下游设备的冷媒回流,保持排放空间相对的独立性,便于平衡排放空间与动涡旋盘和静涡旋盘之间的压差,即便于平衡排放空间与吸入空间之间的压差。
在一种可能的设计中,进一步地,第一止回板上设有第六通孔,第二止回板上设有第七通孔,当第一止回板和第二止回板封堵排出管的情况下,第一止回板封堵第七通孔,第二止回板封堵第六通孔。
在该设计中,第一止回板上设置有第六通孔,第二止回板上设有第七通孔,在第二止回板受力与第一止回板相抵时,第一止回板封堵第二止回板上的第七通孔,第二止回板封堵第六通孔,进而实现对排放空间和排出管之间的封堵,其结构简单,可靠性佳。
在一种可能的设计中,进一步地,排出管包括:第一管,设于机壳,第一止回板固定于第一管;第二管,部分第二管设于第一管内,第二限位部设于第二管,第二止回板位于第一止回板和第二管之间。
在该设计中,排出管形成一种套管的结构,第一管套设在部分第二管的外侧,进而便于止回模块的安装与维修。
本申请的附加方面和优点将在下面的描述部分中变得明显,或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:
图1是本申请一个实施例提供的涡旋压缩机的结构示意图;
图2是如图1所示的涡旋压缩机中A处的局部放大图;
图3是本申请一个实施例提供的涡旋压缩机中静涡旋盘、背压板和泄压低回结构的结构示意图;
图4是本申请一个实施例提供的涡旋压缩机中的部分部件的结构示意图;
图5是本申请一个实施例提供的涡旋压缩机中泄压低回板的结构示意图;
图6是本申请一个实施例提供的涡旋压缩机中止回模块在一个状态结构示意图;
图7是本申请一个实施例提供的涡旋压缩机中止回模块在另一个状态结构示意图。
其中,图1至图7中附图标记与部件名称之间的对应关系为:
100涡旋压缩机,110机壳,120隔离板,122第一通孔,130机架,132第一机架,134第二机架,142动涡旋盘,144静涡旋盘,1442第二通孔,1444第五通孔,150泄压低回结构,152第一滑道,154泄压低回板,1542第三通孔,1544第四通孔,156第一限位部,160背压板,170浮板,180排出管,182第一管,184第二管,190止回模块,192第二滑道,194第一止回板,1942第六通孔,196第二限位部,198第二止回板,1982第七通孔,210吸入空间,220排放空间,230电机结构,232转轴,240吸入管,250吸入室,260中间压力室,270排放室,280腔室。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点,下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是,在不冲突的情况下,本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请,但是,本申请还可以采用其他不同于在此描述的其他方式来实施,因此,本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图7来描述根据本申请一些实施例提供的涡旋压缩机100。
实施例1:
如图1所示,根据本申请的一些实施例,本申请的一个实施例提供了一种涡旋压缩机100,该涡旋压缩机100包括:机壳110、隔离板120、机架130、动涡旋盘142和静涡旋盘144。
其中,机壳110限定出涡旋压缩机100的内部空间,在机壳110内部设置一个隔离板120,利用隔离板120将涡旋压缩机100的内部空间分隔成吸入空 间210和排放空间220。吸入空间210用于容纳未压缩的冷媒,排放空间220用于容纳压缩过后的冷媒。
动涡旋盘142和静涡旋盘144相配合地设置在吸入空间210内。动涡旋盘142和静涡旋盘144可以配合,并形成:吸入室250、中间压力室260和排放室270。
具体地,动涡旋盘142为动态,静涡旋盘144为静态,在动涡旋盘142绕转轴232进行运动时,通过吸入室250,吸入冷媒,再经过中间压力室260压缩冷媒,最后将压缩后的冷媒排入排放室270,以便将冷媒排出,从而完成一个压缩作业。
并且,隔离板120设置第一通孔122,连通吸入空间210和排放空间220,在静涡旋盘144上设置第二通孔1442,第二通孔1442连通排放室270,进而通过动涡旋盘142和静涡旋盘144压缩后的冷媒可以经由第二通孔1442排放至第一通孔122,再由第一通孔122排放至排出空间,进而完成冷媒的排放。
本申请提供的涡旋压缩机100,在静涡旋盘144的第二通孔1442和隔离板120的第一通孔122之间还设泄压低回结构150,并且,泄压低回结构150始终连通第二通孔1442和排放空间220。而在涡旋压缩机100停机后,由于动涡旋盘142和静涡旋盘144不再运动,排放室270内的压力会与吸入空间210内的压力平衡,从而使得排放室270内的压力降低,因此,排放空间220内的压力会高于动涡旋盘142和静涡旋盘144之间的压力,进而排放空间220内的冷媒会通过泄压低回结构150回流至动涡旋盘142和静涡旋盘144之间,具体为排放室270,再由排放室270回流至吸入空间210,使得动涡旋盘142低速回转,避免动涡旋盘142高速回转而产生磨损和异音,平衡了排放空间220与动涡旋盘142和静涡旋盘144之间,具体为排放空间220和吸入空间210之间的压力差。因此,在动涡旋盘142和静涡旋盘144在下次执行压缩作业时,排放冷媒所受到的阻力会降低,使得冷媒更加易于进入排放空间220,即更便于冷媒的排放,提升了涡旋压缩机100的启动性能。
实施例2:
如图2至图4所示,在实施例1的基础上,进一步地,泄压低回结构150包括:第一滑道152和可在第一滑道152内滑动的泄压低回板154。
具体地,当动涡旋盘142和静涡旋盘144排放冷媒时,泄压低回板154受到冷媒的推力,远离静涡旋盘144。此时,第二通孔1442和第三通孔1542之间保持一个较大通过面积,进而冷媒可以大量的快速地由第二通孔1442经过第三通孔1542进入排放空间220。
而当动涡旋盘142和静涡旋盘144排放冷媒后,由于排放空间220内的压力要大于动涡旋盘142和静涡旋盘144之间的压力,具体为,排放空间220内的压力要大于排放室270内的压力。此时,泄压低回板154受力与静涡旋盘144相抵,进而减小第二通孔1442和第二通孔1442之间的通过面积,即减小了排放空间220和第二通孔1442之间的冷媒可通过的量,进而保证动涡旋盘142的低速回转效果,降低异音和磨损,并避免排放空间220内的冷媒大量回流而影响动涡旋盘142和静涡旋盘144的吸入冷媒的效果和导致动涡旋盘142的高速回转而引起的异音与磨损,进而保证了涡旋压缩机100的正常运行。
因此,在该实施例中,在降低涡旋压缩机100启动时,动涡旋盘142和静涡旋盘144排放冷媒所受到的阻力的同时,使得涡旋压缩机100在运行时,动涡旋盘142和静涡旋盘144可以顺利吸入冷媒,保证了涡旋压缩机100的正常运行,并且,避免动涡旋盘142的高速回转所带来的异音和磨损。
具体地,泄压低回板154的形状可以根据实际情况任意设置,例如:圆形、椭圆形、多边形等。
并且,能够避免引起动动涡旋盘142和静涡旋盘144快速反转而产生异音和磨损。
实施例3:
如图5所示,在实施例1或实施例2的基础上,进一步地,在泄压低回板154上具有多个通道。当泄压低回板154与静涡旋盘144相抵时,可以封堵住部分通道。
具体地,在泄压低回板154上开设孔,孔包括第三通孔1542和第四通 孔1544,在泄压低回板154和静涡旋盘144相抵时,静涡旋盘144可以封堵第三通孔1542,仅有第四通过连通第二通孔1442和第三通孔1542。
进一步地,泄压低回板154的横截面面积,大于第二通孔1442的横截面面积。即泄压低回板154可搭设在第二通孔1442的边缘,而第三通孔1542就设置在被第二通孔1442边缘遮挡的位置。
因此,在动涡旋盘142和静涡旋盘144排放冷媒时,泄压低回板154受到动涡旋盘142和静涡旋盘144内的压力,被推离静涡旋盘144。此时,第三通孔1542和第四通孔1544均作为冷媒的流通通道,以此为冷媒提供一个较大的通过面积,进而便于动涡旋盘142和静涡旋盘144快速排放冷媒。
并且,在动涡旋盘142和静涡旋盘144排放完冷媒后,泄压低回板154受到来自排放空间220的压力,被推向静涡旋盘144,并与静涡旋盘144相抵。此时,第三通孔1542被静涡旋盘144位于第二通孔1442边缘的部分封堵,仅留第四通孔1544作为冷媒的流通通道,以此为冷媒的回流提供一个或多个较小的通过面积,进而避免大量的冷媒由排放空间220回流至动涡旋盘142和静涡旋盘144之间,进而保证了动涡旋盘142和静涡旋盘144的吸入冷媒的量,避免了动涡旋盘142的高速回转而引起的异音与磨损,进而在提升涡旋压缩机100的启动性能的同时,保证涡旋压缩机100的正常运行。
而该实施例中,利用多个通道在冷媒回流时,封堵部分通过而减小冷媒通过面积,是简单、有效且可靠的。
实施例4:
如图5所示,在实施例3的基础上,进一步地,泄压低回板154上的第四通孔1544可以设置在泄压低回板154的中间位置,并设置第三通孔1542环绕在第四通孔1544的周侧。其中,第三通孔1542和第四通孔1544的数量可以是一个或多个。
将第三通孔1542设置在第四通孔1544的周侧更便于静涡旋盘144对第三通孔1542的封堵。
具体地,第三通孔1542的具体数量可以根据涡旋压缩机100的排量相 应设置,例如:二个、三个、四个、五个、六个等。
而第三通孔1542的形状也可以根据实际情况任意设置,例如:圆形、椭圆形、方形、多边形、腰圆形等。
第四通孔1544的具体数量可以根据实际情况任意设置,例如:一个、二个、三个等。
而第四通孔1544的形状也可以根据实际情况任意设置,例如:圆形、椭圆形、方形、多边形、腰圆形等。
具体地,可以是多个第三通孔1542围绕一个第四通孔1544设置,也可以是多个第三通孔围绕多个第四通孔1544设置,也可以是一个第三通孔1542设置在多个第四通孔1544的周侧,还可以是一个第三通孔1542设置在一个第四通孔1544的周侧。
以圆形的泄压低回板154为例进行说明,第四通孔1544与泄压低回板154同心设置,在第四通过的周侧设置四个第三通孔1542。第三通孔1542的轮廓为多段曲线形,具体可以是,四段曲线,第一段曲线和第三段曲线相对,第二段曲线和第四段曲线相对。其中,第一段曲线朝向第四通孔1544,那么第一段曲线和第三端曲线与泄压低回板154外周同心,第二段曲线和第四段曲线为第一段曲线和第三端曲线半径差直径的圆弧,第二段曲线和第四段曲线的凹陷面相对。以此增加第三通孔1542的面积,提升动涡旋盘142和静涡旋盘144排出冷媒时的通孔面积,并降低排放空间220向动涡旋盘142和静涡旋盘144之间回流冷媒的通过面积,进而在提升涡旋压缩机100启动性能和避免了动涡旋盘142的高速回转而引起的异音与磨损,的同时,保证涡旋压缩机100的正常运行。
实施例5:
如图2和图4所示,在实施例3或实施例4的基础上的基础上,进一步地,泄压低回板154中还包括第一限位部156,第一限位部156设置在第一滑道152上,位于第一滑道152远离静涡旋盘144的一端。
进而在动涡旋盘142和静涡旋盘144向排放空间220排出冷媒时,泄压低回板154和第一限位部156相抵,进而为泄压低回板154限制一个行程,进而确保泄压低回板154可以快速地相应动作,降低泄压低回板154 在状态切换时出现延时,提升泄压低回板154的止回效果,保证涡旋压缩机100的正常运行。
具体地,第一限位部156与泄压低回板154上第三通孔1542的外周侧相抵,进而保证第一限位部156不会封堵第三通孔1542,进而保证了动涡旋盘142进而静涡旋盘144排放冷媒时,泄压低回板154的通过面积。
实施例6:
如图1、图3和图4所示,在实施例1至实施例5中任一项的基础上,进一步地,涡旋压缩机100还包括:背压板160和设置在背压板160上的浮板170。静涡旋盘144、背压板160与浮板170形成一个腔室280,该腔室280通过设置在静涡旋盘144上的第五通孔1444和中间压力室260连通。
在动涡旋盘142和静涡旋盘144进行压缩作业时,中间压力室260内的冷媒受到压力,通过第五通孔1444引入腔室280,进而促使浮板170向上浮起。
在此基础上,隔离板120限制浮板170的运动,这样,腔室280内的压力将会作用于静涡旋盘144上,从而将静涡旋盘144压向动涡旋盘142,从而保证了动涡旋盘142和静涡旋盘144的紧密连接,即保证了吸入室250、中间压力室260和排放室270的独立性,进而提升了涡旋压缩机100的压缩效果和压缩效率。
具体地,第一滑道152设置于背压板160,位于背压板160中间通道上。
实施例7:
如图1和图4所示,在实施例6的基础上,进一步地,在静涡旋盘144背离动涡旋盘142的一端设置凹槽,在凹槽内设置背压板160,并且,背压板160与凹槽的侧壁之间具有间隙,在间隙上盖设浮板170。
在该实施例中,在静涡旋盘144背离动涡旋盘142的一端设置凹槽,凹槽的内侧壁为第一壁,背压板160设置在凹槽内,背压板160的外侧壁为第二壁,第一壁和第二壁相对,并具有间隙,浮板170的两侧分别于第一壁和第二壁活动连接,进而在静涡旋盘144、背压板160和浮板170的围设下,形成腔室280。
因此,由于背压板160是设置静涡旋盘144的凹槽内的,因此,整个静涡旋盘144的外壁是一体的,进而增强了排放室270和吸入室250之间的密闭性,进一步提升了压缩效率。
进一步地,在浮板170和静涡旋盘144之间设置第一密封件,在浮板170和背压板160之间设置第二密封件。
通过在浮板170和静涡旋盘144之间设置第一密封件,在浮板170和背压板160之间设置第二密封件,进而保证了浮板170和静涡旋盘144连接处,以及浮板170和背压板160连接处的密闭性,避免了动涡旋盘142和静涡旋盘144之间的中间压力室260的泄漏,进而保证了动涡旋盘142和静涡旋盘144的压缩性能。
并且,背压板160通过螺钉安装于静涡旋盘144,并在静涡旋盘144和背压板160之间设置第三密封件。
实施例8:
如图1、图4、图6和图7所示,在实施例1至实施例7中任一者的基础上,进一步地,涡旋压缩机100还包括:排出管180和设置在排出管180的止回模块190。
具体地,止回模块190设置在排出管180内,当排放空间220向下游设备排出冷媒时,止回模块190连通开启排出管180,使得冷媒可以通过排出管180顺利地进入下游设备。当排放空间220排放冷媒后,或涡旋压缩机100停机时,由于排放空间220内的压力降低,下游设备内的压力会大于排放空间220内的压力,此时,止回模块190封堵排出管180,避免下游设备的冷媒回流。
即当涡旋压缩机100停机后,由于动涡旋盘142和静涡旋盘144不再进行压缩作业,因此,排放空间220内的压力降低,此时止回模块190受下游设备内的压力会封堵排出管180,进而保证排放空间220内的压力会不增加,从而更加有利于排放空间220内的压力和吸入空间210之间的压力的平衡,避免了动涡旋盘142的高速回转而引起的异音与磨损,进一步地提升了涡旋压缩机100的启动性能。
实施例9:
如图6和图7所示,在实施例8的基础上,进一步地,止回模块190包括:第二滑道192、第一止回板194、第二限位部196和第二止回板198。
具体地,在排出管180中设置第二滑道192,第一止回板194固定在第二滑道192内,位于第二滑道192朝向排放空间220的一端,在第二滑道192的另一段设置第二限位部196。
第二止回板198可在第二滑道192内,第一止回板194和第二限位部196之间滑动。
当第二止回板198与第一止回板194相抵时,排出管180被封堵。当第二止回板198脱离第一止回板194时,排出管180被开启。
即,如图7所示,当动涡旋盘142和静涡旋盘144排出冷媒时,冷媒通过泄压低回结构150进入排放空间220,并由排放空间220通过止回模块190进入排出管180,从而排出冷媒到下游设备。在这种情况下,泄压低回板154与第一限位部156相抵,第三通孔1542和第四通孔1544同时通过冷媒,第二止回板198和第二限位部196相抵,冷媒可止回模块190经由排出管180排出,进而完成冷媒的排出。
如图6所示,在涡旋压缩机100停机后,或动涡旋盘142和静涡旋盘144排出冷媒,排放空间220向排出管180排出冷媒后,下游设备中的冷媒会将第二止回板198推向第一止回板194,使得第二止回板198和第一止回板194相抵进而封堵排出管180,使得排放空间220内的压力只能通过泄压低回板154上的第四通孔1544进入第二通孔1442,进入动涡旋盘142和静涡旋盘144之间,进而进一步提升了涡旋压缩机100的启动性能。
具体地,第一止回板194的形状可以根据实际情况任意设置,例如:圆形、椭圆形、多边形等。
第二止回板198的形状可以根据实际情况任意设置,例如:圆形、椭圆形、多边形等。
实施例10:
如图6和图7所示,在实施例9的基础上,进一步地,在第一止回板194上开设出第六通孔1942在第二止回板198上开设出第七通孔1982。
具体地,如图6所示,当第一止回板194和第二止回板198相抵时,第六 通孔1942和第七通孔1982错位开,两者没有交集。进而在第一止回板194和第二止回板198相抵第一止回板194和第二止回板198可形成一个封闭的结构,进而确保冷媒无法通过。如图7所示,而第一止回板194和第二止回板198分离后第六通孔1942和第七通孔1982就可以通过冷媒了。
具体地,第六通孔1942的具体数量可以根据涡旋压缩机100的排量设置,例如:二个、三个、四个、五个、六个等。
而第七通孔1982的形状也可以根据涡旋压缩机的排量设置,例如:圆形、椭圆形、方形、多边形、腰圆形等。
第六通孔1942的具体数量可以根据涡旋压缩机100的排量设置,例如:一个、二个、三个等。
而第七通孔1982的形状也可以根据实际情况任意设置,例如:圆形、椭圆形、方形、多边形、腰圆形等。
具体地,第六通孔1942可以设置在第一止回板194的远离中心的位置,第七通孔1982可以设置在第二止回板198中心的位置。
以圆形的第一止回板194和第二止回板198为例进行说明,多个第六通孔1942环绕在第一止回板194中心点外侧位置上,并在第二止回板198的中间位置设置一个第七通孔1982。
进一步地,第六通孔1942的轮廓为多段曲线形,具体可以是,四段曲线,第一段曲线和第三段曲线相对,第二段曲线和第四段曲线相对。其中,第一段曲线朝向第四通孔1544,那么第一段曲线和第三端曲线与第一止回板194外周同心,第二段曲线和第四段曲线为第一段曲线和第三端曲线半径差直径的圆弧,第二段曲线和第四段曲线的凹陷面相对。
即,当动涡旋盘142和静涡旋盘144排出冷媒时,冷媒通过泄压低回结构150进入排放空间220,并由排放空间220通过止回模块190进入排出管180,从而排出冷媒到下游设备。在这种情况下,泄压低回板154与第一限位部156相抵,第三通孔1542和第四通孔1544同时通过冷媒,第二止回板198和第二限位部196相抵,冷媒可通过第一止回板194上的第六通孔1942和第二止回板198上的第七通孔1982经由排出管180排出,进而完成冷媒的排出。
当涡旋压缩机100停机后,或动涡旋盘142和静涡旋盘144排出冷媒,排 放空间220向排出管180排出冷媒后,下游设备中的冷媒会将第二止回板198推向第一止回板194,使得第二止回板198和第一止回板194相抵,进而第六通孔1942和第七通孔1982被封闭,进而封堵排出管180,使得排放空间220内的压力只能通过泄压低回板154上的第四通孔1544进入第二通孔1442,进入动涡旋盘142和静涡旋盘144之间,进一步地提升排放空间220和吸入空间210之间的压力平衡的效果,进一步提升涡旋压缩机100的启动性能。
实施例11:
如图6和图7所示,在实施例8至实施例10中任一者的基础上,进一步地,排出管180包括第一管182和部分穿设于第一官内的第二管184。
具体地,第一管182与机壳110连接,第二管184与第一管182连接。
在此基础上,可以以第二管184位于第一管182内部的端部作为第二限位部196,进而节省了生产难度。
第一管182的内部上形成第二滑道192,第一止回板194设置在第一管182远离第二管184的一侧,第二止回板198位于第一管182内,并可在第一管182内部滑动。
实施例12:
如图1所示,在实施例1至实施例11中任一者的基础上,进一步地,涡旋压缩机100还包括电机结构230,电机结构230具有转轴232。转轴232与动涡旋盘142相连接,以驱动动涡旋盘142运动。
并且,机架130包括第一机架132和第二机架134,动涡旋盘142和静涡旋盘144设置在第一机架132,电机结构230设置在第二机架134。
在该实施例中,通过电机结构230中转轴232的转动带动动涡旋盘142绕转轴232进行运动,从而实现涡旋压缩机100的压缩作业。
实施例13:
如图1所示,在实施例1至实施例12中任一者的基础上,进一步地,涡旋压缩机100还包括吸入管240,吸入管240和吸入空间210相连通。
在该实施例中,通过吸入管240和上有设备连接,进而实现将冷媒吸入压缩机。
实施例14:
如图1至图7所示,本申请提供了一种涡旋压缩机100,其包括机壳110、第一机架132和第二机架134,在机壳110内配置电机结构230,在第一架轴向上方设置动涡旋盘142和静涡旋盘144,隔离板120在机壳110的内部分成吸入空间210和排放空间220,电机结构230通过转轴232,具体为曲轴,带动动涡旋盘142运转,动涡旋盘142沿着设定的轨迹和静涡旋盘144组成吸入室250、中间压力室260和排放室270,在静涡旋盘144上开孔连通中间压力室260的第二通孔1442,静涡旋盘144、背压板160以及浮板170组成的腔室280,冷媒从静涡旋盘144外侧吸入经中间压力室260的压缩,从静涡旋盘144的第二通孔1442排入涡旋压缩机100内的排放空间220再通过排出管180排出涡旋压缩机100。
并且,在静涡旋盘144排气口设置泄压低回板154,有效地防止涡旋压缩机100停止时因压力差使冷媒从静涡旋盘144排放冷媒后回流至动涡旋盘142和静涡旋盘144之间,引起动动涡旋盘142和静涡旋盘144快速反转而产生异音和磨损。并且,泄压低回板154还连通排放空间220和静涡旋盘144与动涡旋盘142之间,进而还可以平衡排放空间220与动涡旋盘142和静涡旋盘144之间的压力差,以在涡旋压缩机100再次启动时,可以降低动涡旋盘142和静涡旋盘144的排压阻力,进而提升涡旋压缩机100的启动性能。并且,泄压低回板154具有结构简单制作成本低的优点。
在本申请中,术语“第一”、“第二”、“第三”仅用于描述的目的,而不能理解为指示或暗示相对重要性;术语“多个”则指两个或两个以上,除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解,例如,“连接”可以是固定连接,也可以是可拆卸连接,或一体地连接;“相连”可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中,需要理解的是,术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作,因此,不能理解为对本申请的限制。
在本说明书的描述中,术语“一个实施例”、“一些实施例”、“具体实施例” 等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或实例。而且,描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种涡旋压缩机,其中,包括:
    机壳;
    隔离板,设于所述机壳内部,将所述机壳内部分为吸入空间和排放空间,所述隔离板上设有第一通孔,以连通所述吸入空间与所述排放空间;
    机架,设于所述机壳内部位于所述吸入空间,所述机架和所述隔离板间隔设置;
    动涡旋盘,可活动地设于所述机架;
    静涡旋盘,设于所述机架,与所述动涡旋盘相配合,所述静涡旋盘设置有第二通孔,所述第二通孔与所述排放空间相连通;
    泄压低回结构,设于所述静涡旋盘,所述泄压低回结构被配置为能够连通所述第二通孔和所述排放空间。
  2. 根据权利要求1所述的涡旋压缩机,其中,所述泄压低回结构包括:
    第一滑道,设于所述静涡旋盘,位于所述静涡旋盘与所述隔离板之间;
    泄压低回板,可滑动地设于所述第一滑道内,并可与所述静涡旋盘相抵,在所述泄压低回板与所述静涡旋盘相抵的情况下,减小所述排放空间和所述第二通孔之间的通过面积。
  3. 根据权利要求2所述的涡旋压缩机,其中,
    所述泄压低回板设有第三通孔和第四通孔,在所述泄压低回板与所述静涡旋盘相抵的情况下,所述静涡旋盘封堵所述第三通孔,所述第四通孔连通所述第二通孔和所述排放空间。
  4. 根据权利要求3所述的涡旋压缩机,其中,
    所述第三通孔和/或所述第四通过的数量为多个,所述第三通孔位于所述第四通孔的周侧。
  5. 根据权利要求3所述的涡旋压缩机,其中,
    所述第一滑道背离所述静涡旋盘的一端设有第一限位部,所述第一限位部可与所述泄压低回板相抵,在所述第一限位部与所述泄压低回板相抵的情况下,所述第三通孔和所述第四通孔连通所述第二通孔和所述排放空间。
  6. 根据权利要求2所述的涡旋压缩机,其中,还包括:
    背压板,设于所述静涡旋盘,所述第一滑道设于所述背压板;
    浮板,与所述背压板可活动地连接,所述静涡旋盘、所述背压板与所述浮板形成腔室,所述静涡旋盘设有第五通孔,所述第五通孔的开口位于所述腔室内。
  7. 根据权利要求1至6中任一项所述的涡旋压缩机,其中,还包括:
    排出管,与所述机壳相连接,所述排出管与所述排放空间相连通;
    止回模块,设于所述排出管。
  8. 根据权利要求7所述的涡旋压缩机,其中,所述止回模块包括:
    第二滑道,设于所述排出管;
    第一止回板,固定于所述第二滑道的一端;
    第二限位部,设于所述第二滑道的另一端;
    第二止回板,可滑动地设于所述第二滑道内,所述第一止回板和所述第二止回板被配置为能够开启或封堵所述排出管。
  9. 根据权利要求8所述的涡旋压缩机,其中,
    所述第一止回板上设有第六通孔,所述第二止回板上设有第七通孔,当所述第一止回板和所述第二止回板封堵所述排出管的情况下,所述第一止回板封堵所述第七通孔,所述第二止回板封堵所述第六通孔。
  10. 根据权利要求8所述的涡旋压缩机,其中,所述排出管包括:
    第一管,设于所述机壳,所述第一止回板固定于所述第一管;
    第二管,部分所述第二管设于所述第一管内,所述第二限位部设于所述第二管,所述第二止回板位于所述第一止回板和所述第二管之间。
PCT/CN2020/134989 2020-08-31 2020-12-09 涡旋压缩机 Ceased WO2022041564A1 (zh)

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EP20951231.8A EP4184010B1 (en) 2020-08-31 2020-12-09 Scroll compressor
CA3188503A CA3188503A1 (en) 2020-08-31 2020-12-09 Scroll compressor
KR1020237005743A KR102738015B1 (ko) 2020-08-31 2020-12-09 스크롤 압축기
US18/114,550 US12085077B2 (en) 2020-08-31 2023-02-27 Scroll compressor with a pressure relief low-speed rotation structure

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KR102738015B1 (ko) 2024-12-03
US20230213033A1 (en) 2023-07-06
EP4184010A1 (en) 2023-05-24
CA3188503A1 (en) 2022-03-03
EP4184010B1 (en) 2025-08-27
KR20230038293A (ko) 2023-03-17

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