CN211012000U - Flash evaporator and air conditioning system - Google Patents
Flash evaporator and air conditioning system Download PDFInfo
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- CN211012000U CN211012000U CN201921830309.8U CN201921830309U CN211012000U CN 211012000 U CN211012000 U CN 211012000U CN 201921830309 U CN201921830309 U CN 201921830309U CN 211012000 U CN211012000 U CN 211012000U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 197
- 239000003507 refrigerant Substances 0.000 claims abstract description 147
- 238000001704 evaporation Methods 0.000 abstract description 16
- 230000008020 evaporation Effects 0.000 abstract description 16
- 239000000243 solution Substances 0.000 description 7
- 239000013589 supplement Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model provides a flash vessel and air conditioning system. The flash evaporator comprises a barrel and a refrigerant pipe, a containing cavity is formed in the barrel, a liquid inlet, a liquid outlet and a gas outlet are formed in the barrel at intervals, the liquid inlet, the liquid outlet and the gas outlet are communicated with the containing cavity, the liquid outlet is communicated with a second heat exchanger of the air conditioner, the gas outlet is communicated with a compressor of the air conditioner, the refrigerant pipe comprises a refrigerant inlet end, a refrigerant outlet end and a heat exchange pipe, the heat exchange pipe is arranged in the containing cavity, part of area of the heat exchange pipe is contained below liquid in the barrel, two ends of the heat exchange pipe are communicated with the refrigerant inlet end and the refrigerant outlet end respectively, the refrigerant inlet end is communicated with a first heat exchanger of the. The technical scheme of the utility model the refrigerant flash evaporation volume that has solved present flash vessel is few, leads to the problem that the jet enthalpy-increasing air make-up volume of compressor is not enough.
Description
Technical Field
The utility model relates to an air conditioner adjustment technical field, in particular to flash vessel and applied this flash vessel's air conditioning system.
Background
In order to solve the problem of cold temperature in winter in the north, the prior heat pump air conditioner is improved by using an enhanced vapor injection compressor technology, and the enhanced vapor injection air conditioner usually adopts a three-pipe flash evaporator of a liquid inlet pipe, a liquid outlet pipe and a gas outlet pipe to generate vapor and gas-liquid separation. When the air-supplementing and enthalpy-increasing functions are carried out, condensed high-pressure medium-temperature liquid refrigerant enters the flash evaporator from a liquid inlet pipe of the flash evaporator after primary throttling, the pressure of the throttled refrigerant is reduced, part of the refrigerant is subjected to flash evaporation and gasification in the flash evaporator, the refrigerant is subjected to gas-liquid separation under the action of gravity, vapor refrigerant at the upper layer is discharged from a gas outlet pipe at the top of the flash evaporator and enters an enthalpy-increasing compressor to supplement air for the compressor, liquid refrigerant at the lower layer is discharged from a liquid outlet pipe of the flash evaporator and enters a heat exchanger for evaporation and heat exchange after secondary throttling.
However, in the enhanced vapor injection air conditioner, because the evaporation of the refrigerant in the flash evaporator is adiabatic evaporation, the vapor can be generated only by the pressure reduction of the flash evaporator, and the pressure can be reduced to the intermediate pressure after one-time throttling, and the pressure reduction amplitude is small, so the dryness of the throttled refrigerant is small, the generated vapor amount is small, and the insufficient air supplement amount of the compressor is easily caused due to the small vapor amount.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flash vessel, the refrigerant flash evaporation volume that aims at solving present flash vessel is few, leads to the problem that the air injection enthalpy gain air make-up volume is not enough.
In order to achieve the above object, the present invention provides a flash evaporator, comprising:
the air conditioner comprises a cylinder body, wherein a containing cavity is formed in the cylinder body, a liquid inlet, a liquid outlet and an air outlet are arranged in the cylinder body at intervals, the liquid inlet, the liquid outlet and the air outlet are all communicated with the containing cavity, the liquid outlet is used for being communicated with a second heat exchanger of the air conditioner, and the air outlet is used for being communicated with a compressor of the air conditioner;
the heat exchange tube is arranged in the containing cavity, part of the heat exchange area is contained below liquid in the cylinder, two ends of the heat exchange tube are respectively communicated with the refrigerant inlet end and the refrigerant outlet end, the refrigerant inlet end is used for being communicated with a first heat exchanger of an air conditioner, and the refrigerant outlet end is communicated with the liquid inlet.
In an embodiment of the present invention, the outer wall of the partial region of the heat exchange tube located below the liquid in the cylinder is a rough structure.
In an embodiment of the present invention, the partial region of the heat exchange tube is close to the bottom wall of the cylinder.
In an embodiment of the present invention, the heat exchange tube is a U-shaped tube, and two free ends of the U-shaped tube correspond to the refrigerant inlet end and the refrigerant outlet end respectively.
In another embodiment of the present invention, a partial region of the heat exchange tube located below the liquid in the cylinder is a spiral structure.
In an embodiment of the present invention, the flash evaporator further includes a liquid inlet pipe, one end of the liquid inlet pipe is disposed outside the cylinder, the other end of the liquid inlet pipe penetrates through the liquid inlet and is inserted into the cavity, one end of the liquid inlet pipe inserted into the cavity is disposed below the liquid in the cylinder, and one end of the liquid inlet pipe disposed outside the cylinder is used for communicating with the refrigerant outlet end;
and/or the flash evaporator further comprises a liquid outlet pipe, one end of the liquid outlet pipe is arranged outside the cylinder body, the other end of the liquid outlet pipe penetrates through the liquid outlet and is inserted into the containing cavity, one end of the liquid outlet pipe, which is inserted into the containing cavity, is contained below the liquid in the cylinder body, and one end of the liquid outlet pipe, which is arranged outside the cylinder body, is used for being communicated with the second heat exchanger;
and/or the flash evaporator further comprises an air outlet pipe, one end of the air outlet pipe is arranged outside the cylinder, the other end of the air outlet pipe penetrates through the air outlet and is inserted into the containing cavity, one end of the air outlet pipe inserted into the containing cavity is contained above the liquid in the cylinder, and one end of the air outlet pipe arranged outside the cylinder is used for being communicated with the compressor.
In an embodiment of the present invention, the liquid inlet pipe extends into one end of the cylinder and the liquid outlet pipe extends into one end of the cylinder to the same distance from the bottom of the cylinder.
In an embodiment of the present invention, the liquid inlet pipe, the liquid outlet pipe, the air outlet pipe and the refrigerant pipe all run through the top of the cylinder.
The utility model also provides an air conditioning system, including compressor, the first heat exchanger, the second heat exchanger and as above the flash vessel, the compressor, the first heat exchanger, the flash vessel, the second heat exchanger are connected in proper order;
the liquid outlet of the first heat exchanger is communicated with the refrigerant inlet end, the refrigerant outlet end is communicated with one end, located outside the barrel, of the liquid inlet pipe, a first throttling valve is arranged between the liquid inlet end and the liquid outlet end, located outside the barrel, a second throttling valve is arranged between the flash evaporator and the second heat exchange pipe, the gas outlet of the gas outlet pipe is communicated with the gas inlet of the compressor, and the liquid outlet of the liquid outlet pipe is communicated with the liquid inlet of the second heat exchanger.
The utility model discloses an in the embodiment, air conditioning system still includes the cross valve, the cross valve respectively with first heat exchanger the second heat exchanger and the compressor intercommunication.
The utility model provides a flash vessel, this flash vessel is through seting up the inlet at the barrel, liquid outlet and gas outlet, at first discharge high temperature high pressure gaseous state refrigerant in the compressor from the air conditioner, become medium temperature liquid refrigerant through first heat exchanger condensation heat transfer, get into in the flash vessel through the refrigerant pipe and carry out the heat exchange once with the low temperature refrigerant in the flash vessel, the refrigerant flows out and carries out the throttle decompression behind the refrigerant pipe, again in the inlet gets into the flash vessel, the refrigerant carries out the flash distillation and takes place the secondary heat exchange with the intraductal refrigerant of refrigerant, the refrigerant in the flash vessel takes place the gas-liquid separation under the action of gravity, upper strata vapour is carried out the tonifying qi to the compressor by the gas outlet, the liquid refrigerant of lower floor flows to second heat exchanger evaporation heat transfer through. Therefore, after the high-pressure refrigerant pipe is added, the flash evaporator not only reduces the pressure of the refrigerant to generate steam, but also can perform heat exchange with the refrigerant in the refrigerant pipe twice to increase the steam quantity, and the problem that the steam injection enthalpy-increasing air supplement quantity of the compressor is insufficient due to the fact that the refrigerant flash evaporation quantity of the conventional flash evaporator is small is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the flash evaporator of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an air conditioning system according to the present invention;
description of the reference numerals
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1000 | |
23 | |
| 100 | Flash |
30 | |
| 10 | |
40 | Liquid outlet pipe |
| 11 | |
50 | |
| 111 | |
60 | Connecting |
| 112 | |
200 | Compressor with a compressor housing having a plurality of |
| 113 | |
300 | |
| 12 | |
400 | |
| 20 | |
500 | |
| 21 | Refrigerant inlet end | 600 | Four- |
| 22 | Refrigerant outlet end | 700 | First throttle valve |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a pair of flash vessel 100 for among the air conditioner, the refrigerant flash evaporation volume that aims at solving present flash vessel 100 is few, leads to the problem that the jet enthalpy-increasing air make-up volume of compressor 200 is not enough.
Referring to fig. 1 and 2 in combination, in an embodiment of the flash evaporator 100 of the present invention, the flash evaporator 100 includes:
the air conditioner comprises a cylinder body 10, wherein a cavity is formed in the cylinder body 10, a liquid inlet 111, a liquid outlet 112 and an air outlet 113 are formed in the cylinder body 10 at intervals, the liquid inlet 111, the liquid outlet 112 and the air outlet 113 are all communicated with the cavity, the liquid outlet 112 is used for being communicated with a second heat exchanger 500 of the air conditioner, and the air outlet 113 is used for being communicated with a compressor 200 of the air conditioner;
the heat exchanger tube 20 comprises a refrigerant inlet end 21, a refrigerant outlet end 22 and a heat exchange tube 23, the heat exchange tube 23 is arranged in the containing cavity, part of the heat exchange tube 23 is contained below liquid in the cylinder 10, two ends of the heat exchange tube 23 are respectively communicated with the refrigerant inlet end 21 and the refrigerant outlet end 22, the refrigerant inlet end 21 is used for being communicated with a first heat exchanger 300 of an air conditioner, and the refrigerant outlet end 22 is communicated with the liquid inlet 111.
In this embodiment, the cylinder 10 includes a top cover 11 and a bottom case 12, the top cover 11 and the bottom case 12 are fixed by welding, the top cover 11 is disposed on the bottom case 12 to form the cavity, and the top cover 11 is provided with a liquid inlet 111, a liquid outlet 112 and a gas outlet 113. In the flash evaporator 100, liquid is filled in the cylinder 10 during use, and can exchange heat with the refrigerant in the heat exchange tube 23 and the refrigerant flowing from the liquid inlet 111.
The liquid outlet 112 can be provided with the liquid outlet pipe 30 by inserting one end of the liquid outlet pipe 30 into the cylinder 10 and arranging the liquid outlet pipe close to the bottom wall of the cylinder 10, and at this time, the liquid in the flash evaporator 100 is output through the liquid outlet pipe 30 under the action of pressure; of course, the liquid outlet 112 may be provided on the bottom wall or the side wall of the barrel 10, and an outlet valve is provided, and when the outlet valve is opened, the liquid in the flash evaporator 100 is automatically output from the liquid outlet 112.
At least part of the heat exchange tube 23 in the refrigerant tube 20 is in contact with the liquid in the flash evaporator 100, and the part in contact with the liquid in the flash evaporator 100 can be in a U-shaped arrangement, a spiral arrangement, or a wave-shaped arrangement, etc., and when the arrangement makes the refrigerant in the refrigerant tube 20 exchange heat with the liquid in the flash evaporator 100, the heat exchange area between the refrigerant and the liquid in the flash evaporator 100 is increased, so as to improve the heat exchange efficiency of the liquid in the flash evaporator 100, and further improve the flash evaporation capacity of the flash evaporator 100.
A throttle valve 700 is arranged between the refrigerant outlet end 22 and the liquid inlet 111, and the refrigerant in the refrigerant pipe 20 is throttled and depressurized through the throttle valve 700; an electronic expansion valve 400 is arranged between the liquid outlet 112 and the second heat exchanger 500, liquid in the flash evaporator 100 is throttled and then enters the second heat exchanger 500 to be evaporated and exchanged, and the refrigerant after heat exchange enters the compressor 200 to be used; an enthalpy-increasing switch valve is arranged between the air outlet 113 and the compressor 200 of the air conditioner, and the air supplement amount to the compressor 200 is controlled by the enthalpy-increasing switch valve.
It can be understood that, according to the technical scheme of the present invention, the flash evaporator 100 has the liquid inlet 111, the liquid outlet 112 and the gas outlet 113 formed in the cylinder 10, firstly, high temperature and high pressure gaseous refrigerant is discharged from the compressor 200 of the air conditioner, and is condensed and heat exchanged by the first heat exchanger 300 (when the heating mode is currently, the first heat exchanger 300 is an evaporator for evaporation, when the cooling mode is currently, the first heat exchanger 300 is a condenser for condensation), and is changed into medium temperature liquid refrigerant, and enters the flash evaporator 100 through the refrigerant pipe 20 and performs primary heat exchange with low temperature refrigerant in the flash evaporator 100, and the refrigerant flows out of the refrigerant pipe 20 and then is throttled and depressurized, and enters the flash evaporator 100 through the liquid inlet 111, and is flashed and performs secondary heat exchange with refrigerant in the refrigerant pipe 20, the refrigerant in the flash evaporator 100 performs gas-liquid separation under the action of gravity, and the vapor in the upper layer is supplied to the compressor 200 through the gas outlet 113, the lower layer liquid refrigerant flows to the second heat exchanger 500 through the liquid outlet 112 (when the heating mode is currently performed, the second heat exchanger 500 is a condenser for condensation, and when the cooling mode is currently performed, the second heat exchanger 500 is an evaporator for evaporation) for evaporation and heat exchange. Therefore, after the high-pressure refrigerant pipe 20 is added to the flash evaporator 100, the flash evaporator 100 not only reduces the pressure of the refrigerant to generate steam, but also can perform heat exchange with the refrigerant in the refrigerant pipe 20 twice to increase the steam quantity, thereby solving the problem that the steam injection enthalpy-increasing air-supplement quantity of the compressor 200 is insufficient due to the small flash evaporation quantity of the refrigerant of the conventional flash evaporator 100.
Referring to fig. 1 and fig. 2, in an embodiment of the flash evaporator 100 of the present invention, the outer wall of the partial region of the heat exchange tube 23 located below the liquid in the cylinder 10 is rough.
In this embodiment, the rough structure may be a bump, a recess, a projection, or the like.
It can be understood that, by arranging the rough structure on the outer wall of the heat exchange tube 23 contacting with the liquid in the cylinder 10, the contact area between the heat exchange tube 23 and the liquid in the flash evaporator 100 can be effectively increased, so as to increase the heat exchange efficiency between the liquid in the flash evaporator 100 and the refrigerant in the refrigerant tube 20.
Referring to fig. 1 and fig. 2, in an embodiment of the flash evaporator 100 of the present invention, a partial region of the heat exchange tube 23 is disposed near the bottom wall of the cylinder 10.
In this embodiment, the heat exchange tube 23 extends from the top wall of the cylinder 10 to a position close to the bottom wall of the cylinder 10.
It can be understood that, since the liquid in the flash evaporator 100 is contained in the lower half part of the cylinder 10, in order to increase the contact area of the heat exchange tube 23 with the liquid in the flash evaporator 100 and to increase the heat exchange area of the liquid in the flash evaporator 100, a partial area of the heat exchange tube 23 is disposed near the bottom wall of the cylinder 10.
Referring to fig. 1 and fig. 2, in an embodiment of the flash evaporator 100 of the present invention, the heat exchange tube 23 is a U-shaped tube, and two free ends of the U-shaped tube respectively correspond to the refrigerant inlet end 21 and the refrigerant outlet end 22.
It can be understood that, in order to further increase the contact area between the heat exchange tube 23 and the liquid in the flash evaporator 100 and further increase the heat exchange area between the refrigerant in the heat exchange tube 23 and the liquid in the flash evaporator 100, the heat exchange tube 23 is configured as a U-shaped tube.
In another embodiment of the present invention, the heat exchange tube 23 is located in a spiral structure in a partial region below the liquid in the barrel 10.
Specifically, the portion of the heat exchange tube 23 contacting the refrigerant in the flash evaporator 100 is a spiral structure, and the portion of the heat exchange tube 23 not contacting the refrigerant in the flash evaporator 100 is a straight tube structure.
It will be appreciated that the helical structure increases the surface area as much as possible in a limited space, i.e. the helical heat exchange tubes 23 have a larger heat exchange area with the liquid in the flash evaporator 100.
In another embodiment of the flash evaporator 100, the heat exchange tube 23 may further include a first connection section, a second connection section and a plurality of heat exchange sections, each of which two ends of the first connection section are respectively communicated with one end of the first connection section and one end of the second connection section, the first connection section is kept away from one end of the heat exchange section and the refrigerant inlet end 21 are communicated, the second connection section is kept away from one end of the heat exchange section the refrigerant outlet end 22 is communicated.
In this embodiment, the heat exchange section is a portion of the heat exchange tube 23 contacting the refrigerant in the flash evaporator 100, and the plurality of heat exchange sections are disposed at intervals and intersect and join at a joint of the first connection section and the second connection section, and the specific flow process is that the refrigerant in the refrigerant tube 20 first passes through the first connection section, then is dispersed to the plurality of heat exchange sections and exchanges heat with the refrigerant in the flash evaporator 100, and then flows out through the second connection section after joining the refrigerant in the plurality of heat exchange sections.
It can be understood that, in order to further increase the heat exchange area between the refrigerant in the flash evaporator 100 and the refrigerant pipe 20 and increase the heat exchange efficiency thereof, the portion of the heat exchange pipe 23 contacting the refrigerant in the flash evaporator 100 is provided with a plurality of heat exchange sections arranged at intervals, and each heat exchange section can exchange heat with the refrigerant in the flash evaporator 100.
Referring to fig. 1 and fig. 2 in combination, in an embodiment of the flash evaporator 100 of the present invention, the flash evaporator 100 further includes a liquid inlet pipe 30, one end of the liquid inlet pipe 30 is disposed outside the cylinder 10, the other end of the liquid inlet pipe penetrates through the liquid inlet 111 and is inserted into the containing cavity, one end of the liquid inlet pipe 30 inserted into the containing cavity is contained below the liquid in the cylinder 10, and one end of the liquid inlet pipe 30 disposed outside the cylinder 10 is used for communicating with the refrigerant outlet 22;
and/or the flash evaporator 100 further comprises a liquid outlet pipe 40, one end of the liquid outlet pipe 40 is arranged outside the cylinder 10, the other end of the liquid outlet pipe 40 penetrates through the liquid outlet 112 and is inserted into the containing cavity, one end of the liquid outlet pipe 40 inserted into the containing cavity is accommodated below the liquid in the cylinder 10, and one end of the liquid outlet pipe 40 arranged outside the cylinder 10 is used for communicating with the second heat exchanger 500;
the flash evaporator 100 further comprises an air outlet pipe 50, one end of the air outlet pipe 50 is arranged outside the cylinder 10, the other end of the air outlet pipe 50 penetrates through the air outlet 113 and is inserted into the cavity, one end of the air outlet pipe 50 inserted into the cavity is accommodated above the liquid in the cylinder 10, and one end of the air outlet pipe 50 arranged outside the cylinder 10 is used for being communicated with the compressor 200.
In this embodiment, the flash evaporator includes a liquid inlet pipe 30, a liquid outlet pipe 40 and a gas outlet pipe 50.
It can be understood that, in order to facilitate the refrigerant entering from the liquid inlet pipe 30 to contact with the refrigerant in the flash evaporator 100 and to rapidly exchange heat with the refrigerant in the flash evaporator 100, the liquid inlet pipe 30 is provided, and one end of the liquid inlet pipe 30 provided in the cylinder 10 is accommodated below the liquid in the cylinder 10. Since the refrigerant in the flash evaporator 100 is accommodated in the lower half portion of the cylinder 10, the liquid outlet pipe 40 is provided, and one end of the liquid outlet pipe 40 inserted into the accommodating cavity is accommodated below the liquid in the cylinder 10, so that the refrigerant in the flash evaporator 100 is conveyed to the second heat exchanger 500 through the liquid outlet pipe 40. Since the gaseous refrigerant in the flash evaporator 100 is likely to float on the top wall of the cylinder 10, the end of the gas outlet tube 50 inserted into the cavity is accommodated above the liquid in the cylinder 10, so that the gaseous refrigerant in the flash evaporator 100 is conveniently conveyed to the compressor 200 through the gas outlet tube 50.
The liquid in the cylinder 10 is a liquid refrigerant, and the vapor is a gaseous refrigerant.
Referring to fig. 1 and fig. 2, in an embodiment of the flash evaporator 100 of the present invention, the distance from the end of the liquid inlet pipe 30 extending into the cylinder 10 to the bottom of the cylinder 10 is the same as the distance from the end of the liquid outlet pipe 40 extending into the cylinder 10 to the bottom of the cylinder 10.
In this embodiment, the end of the liquid inlet pipe 30 extending into the barrel 10 and the end of the liquid outlet pipe 40 extending into the barrel 10 are both close to the bottom wall of the barrel 10.
It can be understood that, in order to ensure that the flowing speed of the refrigerant entering from the liquid inlet pipe 30 is consistent with the flowing speed of the refrigerant flowing out from the liquid outlet pipe 40, so as to improve the working stability of the flash evaporator 100, the distance from the end of the liquid inlet pipe 30 extending into the cylinder to the bottom of the cylinder 10 is consistent with the distance from the end of the liquid outlet pipe 40 extending into the cylinder.
Referring to fig. 1 and fig. 2, in an embodiment of the flash evaporator 100 of the present invention, the liquid inlet pipe 30, the liquid outlet pipe 40, the gas outlet pipe 50, and the refrigerant pipe 20 all penetrate through the top of the barrel 10.
In this embodiment, the liquid inlet pipe 30, the liquid outlet pipe 40, the gas outlet pipe 50 and the refrigerant pipe 20 are all arranged in parallel at intervals.
It can be understood that, in order to improve the compactness of the overall structure of the flash evaporator 100 and facilitate the input and output of the refrigerant and the output of the flash evaporation amount, the liquid inlet pipe 30, the liquid outlet pipe 40, the gas outlet pipe 50 and the refrigerant pipe 20 are all disposed to penetrate through the top of the cylinder 10.
Referring to fig. 1 and fig. 2 in combination, in an embodiment of the flash evaporator 100 of the present invention, in order to facilitate the connection of the refrigerant pipe 20, the liquid outlet pipe 40, the liquid inlet pipe 30 and the air outlet pipe 50 with the connection pipeline, and to ensure the sealing performance after connection, the connection joint 60 is disposed at the refrigerant inlet end 21, the refrigerant outlet end 22, the one end of the liquid inlet pipe 30 disposed outside the cylinder 10, the one end of the liquid outlet pipe 40 disposed outside the cylinder 10, and the one end of the air outlet pipe 50 disposed outside the cylinder 10. The connecting joint 60 is a joint matched with a pipeline, a mounting groove is formed in the surface of the connecting joint 60, which deviates from the flash evaporator 100 barrel 10, and the connecting pipeline is inserted into the mounting groove and fixed by welding.
Referring to fig. 2, the present invention further provides an air conditioning system 1000, the air conditioning system 1000 includes the flash evaporator 100 as described above, and the specific structure of the flash evaporator 100 is detailed in the foregoing embodiments. Since the air conditioning system 1000 adopts all technical solutions of the foregoing embodiments, at least all beneficial effects brought by all technical solutions of the foregoing embodiments are achieved, and are not described in detail herein.
Specifically, the air conditioning system 1000 includes a compressor 200, the first heat exchanger 300, the second heat exchanger 500, and the flash evaporator 100 as described above, where the compressor 200, the first heat exchanger 300, the flash evaporator 100, and the second heat exchanger 500 are sequentially connected in a circulating manner;
the liquid outlet of the first heat exchanger 300 is communicated with the refrigerant inlet end 21, the refrigerant outlet end 21 is communicated with one end of the liquid inlet pipe 30, which is positioned outside the cylinder body, a first throttle valve 700 is arranged between the liquid inlet end 31 and the liquid outlet end 32, the first throttle valve 700 is positioned outside the cylinder body 10, a second throttle valve 400 is arranged between the flash evaporator 100 and the second heat exchanger 500, the gas outlet of the gas outlet pipe 50 is communicated with the gas inlet of the compressor 200, and the liquid outlet of the liquid outlet pipe 30 is communicated with the liquid inlet of the second heat exchanger 500.
The air conditioning system 1000 further includes a four-way valve 600, and the four-way valve 600 is respectively communicated with the first heat exchanger 300, the second heat exchanger 500, and the compressor 200.
In the heating mode of the air conditioning system 1000, firstly, a high-temperature and high-pressure gaseous refrigerant is discharged from a compressor 200, enters a first heat exchanger 300 through a four-way valve 600 for condensation and heat exchange, a medium-temperature liquid refrigerant condensed by the first heat exchanger 300 enters a refrigerant pipe 20 in a flash evaporator 100 and is subjected to primary heat exchange with a low-temperature refrigerant in the flash evaporator 100, then the refrigerant in the refrigerant pipe 20 is subjected to throttling and pressure reduction through a first throttling valve 700, enters the flash evaporator 100 through a liquid inlet pipe 30, is in contact with the refrigerant in the flash evaporator 100 to undergo flash evaporation and secondary heat exchange with the refrigerant in the refrigerant pipe 20, and the refrigerant in the flash evaporator 100 is subjected to gas-liquid separation under the action of gravity; vapor on the upper layer enters the compressor 200 through an air supplement port of the compressor 200 through an air outlet pipe 50, liquid refrigerant on the lower layer enters a second throttling valve 400 through a liquid outlet pipe 40, throttling and pressure reducing are carried out, then the liquid refrigerant enters a second heat exchanger 500 to be evaporated and heat exchanged, the refrigerant after heat exchange enters the compressor 200 through an air suction port of the compressor 200 through a four-way valve 600, the air suction refrigerant and the air supplement refrigerant are mixed and compressed in the compressor 200, then the refrigerant is discharged out of the compressor 200, and the circulation heating is carried out. This setting has improved the flash distillation volume in the flash vessel 100 simultaneously, still can carry out the twice heat exchange through refrigerant pipe 20 and the refrigerant in the flash vessel 100 after, has increased the super-cooled degree of refrigerant in refrigerant pipe 20 for this flash vessel 100 has the economic effect who increases the super-cooled, with the consumption that reduces the air conditioner.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A flash evaporator, comprising:
the air conditioner comprises a cylinder body, wherein a containing cavity is formed in the cylinder body, a liquid inlet, a liquid outlet and an air outlet are arranged in the cylinder body at intervals, the liquid inlet, the liquid outlet and the air outlet are all communicated with the containing cavity, the liquid outlet is used for being communicated with a second heat exchanger of the air conditioner, and the air outlet is used for being communicated with a compressor of the air conditioner;
the heat exchange tube is arranged in the containing cavity, part of area of the heat exchange tube is contained below liquid in the cylinder, two ends of the heat exchange tube are respectively communicated with the refrigerant inlet end and the refrigerant outlet end, the refrigerant inlet end is used for being communicated with a first heat exchanger of an air conditioner, and the refrigerant outlet end is communicated with the liquid inlet.
2. The flash evaporator according to claim 1, wherein the outer wall of a partial region of the heat exchange tube located below the liquid in the cylinder is a rough structure.
3. The flash evaporator of claim 1 wherein a partial region of the heat exchange tube is disposed proximate the bottom wall of the drum.
4. The flash evaporator according to claim 1, wherein the heat exchange tube is a U-shaped tube, and two free ends of the U-shaped tube correspond to the refrigerant inlet end and the refrigerant outlet end, respectively.
5. The flash evaporator according to claim 1, wherein a partial region of the heat exchange tube located below the liquid in the cylinder is a helical structure.
6. The flash evaporator according to claim 1, further comprising a liquid inlet pipe, wherein one end of the liquid inlet pipe is disposed outside the cylinder, the other end of the liquid inlet pipe penetrates through the liquid inlet and is inserted into the cavity, one end of the liquid inlet pipe inserted into the cavity is disposed below the liquid in the cylinder, and one end of the liquid inlet pipe disposed outside the cylinder is used for communicating with the refrigerant outlet end;
and/or the flash evaporator further comprises a liquid outlet pipe, one end of the liquid outlet pipe is arranged outside the cylinder body, the other end of the liquid outlet pipe penetrates through the liquid outlet and is inserted into the containing cavity, one end of the liquid outlet pipe, which is inserted into the containing cavity, is contained below the liquid in the cylinder body, and one end of the liquid outlet pipe, which is arranged outside the cylinder body, is used for being communicated with the second heat exchanger;
and/or the flash evaporator further comprises an air outlet pipe, one end of the air outlet pipe is arranged outside the cylinder, the other end of the air outlet pipe penetrates through the air outlet and is inserted into the containing cavity, one end of the air outlet pipe inserted into the containing cavity is contained above the liquid in the cylinder, and one end of the air outlet pipe arranged outside the cylinder is used for being communicated with the compressor.
7. The flash evaporator according to claim 6, wherein the end of the liquid inlet pipe extending into the cylinder and the end of the liquid outlet pipe extending into the cylinder are at the same distance from the bottom of the cylinder.
8. The flash evaporator according to claim 6, wherein the liquid inlet pipe, the liquid outlet pipe, the gas outlet pipe and the refrigerant pipe are all arranged to penetrate through the top of the cylinder.
9. An air conditioning system, comprising a compressor, the first heat exchanger, the second heat exchanger and the flash evaporator according to any one of claims 6 to 8, wherein the compressor, the first heat exchanger, the flash evaporator and the second heat exchanger are sequentially connected in a circulating manner;
the liquid outlet of the first heat exchanger is communicated with the refrigerant inlet end, the refrigerant outlet end is communicated with one end, located outside the barrel, of the liquid inlet pipe, a first throttling valve is arranged between the liquid inlet end and the liquid outlet end, located outside the barrel, a second throttling valve is arranged between the flash evaporator and the second heat exchanger, the gas outlet of the gas outlet pipe is communicated with the gas inlet of the compressor, and the liquid outlet of the liquid outlet pipe is communicated with the liquid inlet of the second heat exchanger.
10. The air conditioning system of claim 9, further comprising a four-way valve in communication with the first heat exchanger, the second heat exchanger, and the compressor, respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830309.8U CN211012000U (en) | 2019-10-28 | 2019-10-28 | Flash evaporator and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830309.8U CN211012000U (en) | 2019-10-28 | 2019-10-28 | Flash evaporator and air conditioning system |
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| CN211012000U true CN211012000U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266968A (en) * | 2021-04-28 | 2021-08-17 | 珠海格力电器股份有限公司 | Liquid storage tank, refrigerant transfer device and refrigeration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266968A (en) * | 2021-04-28 | 2021-08-17 | 珠海格力电器股份有限公司 | Liquid storage tank, refrigerant transfer device and refrigeration system |
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