WO2020179985A1 - Corps de pompe et pompe à aimant comprenant ce dernier - Google Patents

Corps de pompe et pompe à aimant comprenant ce dernier Download PDF

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Publication number
WO2020179985A1
WO2020179985A1 PCT/KR2019/015119 KR2019015119W WO2020179985A1 WO 2020179985 A1 WO2020179985 A1 WO 2020179985A1 KR 2019015119 W KR2019015119 W KR 2019015119W WO 2020179985 A1 WO2020179985 A1 WO 2020179985A1
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WO
WIPO (PCT)
Prior art keywords
contact
casing
fluid
space
guide
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/KR2019/015119
Other languages
English (en)
Korean (ko)
Inventor
이상선
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.)
FLUONICS CORP
Original Assignee
FLUONICS CORP
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 KR1020190025640A external-priority patent/KR102222302B1/ko
Priority claimed from KR1020190025639A external-priority patent/KR102222301B1/ko
Priority claimed from KR1020190039388A external-priority patent/KR102222303B1/ko
Application filed by FLUONICS CORP filed Critical FLUONICS CORP
Priority to US16/632,015 priority Critical patent/US20210396246A1/en
Priority to CN201980003686.0A priority patent/CN112204263A/zh
Publication of WO2020179985A1 publication Critical patent/WO2020179985A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4293—Details of fluid inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps

Definitions

  • the present invention relates to a pump casing and a magnetic pump including the same, and more particularly, a fluid is introduced from the inflow space and the introduced fluid is discharged to the outside by a suction casing and an impeller forming an inflow space into which the fluid is introduced. It relates to a pump casing including a volute casing forming a flow path and a magnetic pump including the same.
  • the conventionally known magnetic pump includes a front casing forming a pump chamber and a rear casing forming a cylindrical space continuous with the pump chamber.
  • a magnet can rotatably supported by a support shaft is disposed, and an impeller accommodated in the pump chamber is coupled to the magnet can.
  • a rotation driving unit magnetically coupled to the magnet can is disposed, and the magnet can rotates by the driving force of the rotation driving unit.
  • the impeller coupled thereto rotates, and the conveying fluid is introduced into the pump chamber from the cylindrical suction port formed in front of the front casing, and the conveying fluid is discharged from the discharge port on the side of the front casing.
  • the support shaft extends through the pump chamber to the inlet of the front casing.
  • the distal end of the support shaft is covered with a shaft support portion connected to the suction port, and the inner wall of the suction port and the shaft support portion are connected by a plurality of supporting legs.
  • Korean Patent Application Publication No. 10-2016-0122707 discloses a magnetic pump.
  • the front casing may be divided into a portion forming the suction port 4 through which the fluid is introduced and a portion forming the pump chamber 3, which is a space in which the impeller 13 is disposed.
  • the size of the space defined by the suction port 4 and the size of the space defining the pump chamber 3 need to be different.
  • the present invention is to solve the above problems, and the front casing forms a flow path through which fluid is introduced from the inflow space and the fluid is discharged to the outside by a suction casing that forms an inflow space into which fluid is introduced and an impeller. It is intended to provide a pump casing that is manufactured separately as a volute casing that can be used by combining various types of suction casings and volute casings according to the purpose of use of a magnetic pump, and a magnetic pump including the same.
  • the pump casing includes an inflow space into which fluid is introduced, a flow path through which fluid is introduced from the inflow space and discharged to the outside, and a flow path through which fluid is discharged, and rotated about a predetermined central axis to induce a flow of fluid.
  • a suction casing that forms an internal space including an arrangement space in which an impeller is disposed, and forms the inflow space through which fluid is introduced; And a volute casing forming the flow path through which fluid is introduced from the inflow space and discharged to the outside by the impeller, wherein the volute casing forms the arrangement space in which the impeller is disposed, and And a fluid guide device disposed on the inner space to guide the movement of a fluid moving from the inflow space to the arrangement space.
  • the front casing forms a flow path through which fluid is introduced from the inflow space and the introduced fluid is discharged to the outside by a suction casing and an impeller forming an inflow space into which fluid is introduced It is manufactured separately as a volute casing, and has the advantage of being able to combine and use various types of suction casings and volute casings according to the purpose of use of the magnetic pump.
  • FIG. 1 is a schematic cross-sectional view of a pump casing according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded cross-sectional view of a pump casing according to an embodiment of the present invention.
  • Figure 3 is a schematic enlarged cross-sectional view of a portion of the pump casing in accordance with an embodiment of the present invention where the separation maintenance part is omitted.
  • Figure 4 is a schematic enlarged cross-sectional view of a portion including a separation maintenance part in the pump casing according to an embodiment of the present invention.
  • Figure 5 is a schematic perspective view of a support portion of the pump casing according to an embodiment of the present invention.
  • FIG. 6 is a partial cross-sectional view of a magnet pump for explaining a fluid guide device according to another embodiment of the present invention.
  • FIG. 7 is a partial exploded cross-sectional view of a magnet pump for explaining a fluid guide device according to another embodiment of the present invention.
  • FIG. 8 is a front and rear perspective view of a fluid guide device according to another embodiment of the present invention.
  • FIG. 9 is an elevation view as viewed from the rear of the fluid guide device according to another embodiment of the present invention.
  • FIG. 10 is a cross-sectional view of a fluid guide device according to another embodiment of the present invention.
  • FIG. 11 is a partially enlarged cross-sectional view illustrating a contact depression of a fluid guide device according to another embodiment of the present invention.
  • FIG. 12 is a partially enlarged cross-sectional view illustrating a first insertion groove and a second insertion groove of a fluid guide device according to another embodiment of the present invention.
  • the pump casing 10 may mean one component of a pump that implements a fluid flow.
  • the pump casing 10 may be configured to form a flow path through which a fluid flows.
  • the pump casing 10 is a suction casing 100 that forms an inlet space S1 into which the fluid is introduced, and the fluid is introduced from the inlet space S1 by an impeller, and the introduced fluid is discharged to the outside. It may include a volute casing 200 forming a flow path.
  • the suction casing 100 and the volute casing 200 may be made of metal.
  • the suction casing 100 may have a configuration in which the inflow space S1 is formed so that the fluid can be introduced into the inflow space S1 from the outside by the impeller.
  • the suction casing 100 may be connected to a conduit and/or pipe (not shown) to receive fluid from the conduit and/or pipe.
  • the volute casing 200 may have a configuration in which a fluid can be introduced from the inflow space S1 by the impeller.
  • volute casing 200 may form a flow path through which the fluid received from the inflow space S1 is transferred to the outside.
  • volute casing 200 may be connected to a conduit and/or pipe to transfer fluid to the conduit and/or pipe.
  • volute casing 200 may form an arrangement space S2 in which the impeller is disposed.
  • the impeller may be disposed on the placement space S2 to express a rotational force, and a fluid may be moved by the rotational force.
  • the fluid may flow from the outside to the inflow space S1 formed by the suction casing 100 by the impeller, and along the flow path formed by the volute casing 200 from the inflow space S1 It may be discharged to the outside through the arrangement space (S2).
  • the suction casing 100 may be detachable from the volute casing 200 by a predetermined detachable member (T).
  • the suction casing 100 may be connected to or separated from the volute casing 200 by the detachable member T.
  • the pump casing 10 may require the inflow space S1 and/or the arrangement space S2 of various sizes and/or shapes according to the intended use.
  • the suction casing 100 and the volute casing 200 are not integrally formed, but are configured to be detachable from each other, and the pump casing 10 has the suction casing ( There is an advantage that 100) and the volute casing 200 may be formed in combination with each other.
  • the detachable member (T) may be a screw threaded bolt or the like, but is not limited thereto, if a configuration capable of selectively connecting or separating the suction casing 100 and the volute casing 200 It may be variously modified from the standpoint of those skilled in the art.
  • the detachable member T is a threaded bolt.
  • the suction casing 100 may include a suction body part 110 forming the inflow space S1 and a first fastening part 120 to which the detachable member T is fastened.
  • a plurality of the first fastening parts 120 may be formed in a predetermined position of the suction body part 110, and the detachable member T may be fastened to the first fastening part 120. have.
  • the first fastening part 120 may form a thread corresponding to the thread of the detachable member T.
  • the volute casing 200 may include a volute body part 210 forming the arrangement space S2 and a second fastening part 220 to which the detachable member T is fastened. have.
  • a plurality of the second fastening parts 220 may be formed at positions corresponding to the first fastening parts 120 on the volute body part 210.
  • the second fastening part 220 may form a thread corresponding to the thread of the detachable member T.
  • the suction casing 100 has a first facing surface 130 facing the volute casing 200 when connected to the volute casing 200 by the detachable member T can do.
  • the volute casing 200 when the volute casing 200 is connected to the suction casing 100 by the detachable member T, the volute casing 200 may have a second opposing surface 230 facing the first opposing surface 130. have.
  • first facing surface 130 may mean a surface facing the volute casing 200
  • second facing surface 230 means a surface facing the suction casing 100 can do.
  • first facing surface 130 and the second facing surface 230 may mean a surface facing each other by connection of the suction casing 100 and the volute casing 200.
  • the suction casing 100 and the volute casing 200 are not firmly connected, the fluid in the inflow space S1 and/or the arrangement space S2 is transferred to the first opposing surface 130 It may leak to the outside through the second opposing surface 230.
  • first facing surface 130 and the second facing surface 230 are the first fastening part 120 based on the virtual central axis of the inflow space S1 and/or the arrangement space S2.
  • second fastening part 220 may be formed inside the radial direction.
  • the pump casing 10 has the first opposing surface 130 and the second opposing surface to prevent leakage of fluid between the first opposing surface 130 and the second opposing surface 230. It may further include a space maintaining portion 300 disposed between the surfaces 230.
  • the separation maintenance part 300 is disposed between the first facing surface 130 and the second facing surface 230 so that the suction casing 100 is provided with the volute by the detachable member T. When connected to the casing 200, it may be pressed from the first facing surface 130 and the second facing surface 230.
  • the separation maintaining unit 300 minimizes the separation distance between the first and second facing surfaces 230, that is, sealing, and thus the first facing surface 130 and the first facing surface 130 2 It is possible to prevent the fluid from leaking between the opposite surfaces 230.
  • the separation maintaining part 300 is disposed between the first facing surface 130 and the second facing surface 230 to minimize leakage of fluid.
  • the spacing holding part 300 may be a fluororesin-based elastic material such as PFA, PTFE, FEP, ETFE, EFEP, and/or CPT.
  • the sealing function of the space keeping part 300 can be further maximized.
  • the first fastening part 120 and the A separation space S3 may be formed between the first fastening part 120 and the second fastening part 220 by preventing the second fastening part 220 from contacting.
  • the first fastening part 120 and the second fastening part 220 are completely fastened to the detachable member T, that is, the suction casing 100 and the volute casing 200 Even when) are firmly connected, the first fastening part 120 and the second fastening part 220 may not be in contact with each other by the space maintaining part 300.
  • first fastening part 120 and the second fastening part 220 may be spaced apart from each other by the spacing holding part 300, and as a result, the first fastening part 120 and the second fastening part 120
  • the spaced space S3 may be formed between the parts 220.
  • the first fastening part 120 and the second fastening part By forming the spaced space S3 so that the 220 does not contact each other, the operator installs a sensing device (not shown) capable of detecting the leakage of fluid in the spaced space S3 to prevent leakage of fluid. It can be easily identified.
  • the separation maintaining unit 300 forms the intended separation space (S3) even if it is deformed to the elastic limit by the pressure of the first facing surface 130 and the second facing surface 230, the operator It can be quickly confirmed that the fluid leaks between the first and second facing surfaces 130 and 230.
  • the separation maintaining unit 300 may be exposed to the separation space S3.
  • one end of the separation unit 300 may be exposed onto the separation space S3, and the operator may determine whether the separation unit 300 is damaged through the separation space S3, and the separation Whether the holding unit 300 is disposed at an intended position and/or whether a fluid leaks through the separation holding unit 300 can be easily identified.
  • the separation unit 300 includes a first separation unit 310 connected to the suction casing 100 and a second separation unit 320 connected to the volute casing 200 Can be equipped.
  • the spacing holding part 300 may be formed by a combination of the first spacing maintaining part 310 and the second spacing maintaining part 320, not formed of a single elastic body.
  • the first space keeping part 310 may be connected to the suction casing 100 to cover at least a part of the first opposing surface 130 of the suction casing 100.
  • the second space keeping part 320 may be connected to the volute casing 200 to cover at least a part of the second opposing surface 230 of the volute casing 200.
  • the separation holding part 300 is formed of a single elastic body and connected to either the suction casing 100 or the volute casing 200, the first opposing surface 130 and the first 2
  • the suction casing 100 and the volute casing are connected to each other by the detachable member T between the opposite surfaces 230, the suction casing 100 or the volute casing 200 is unintended. Due to the pressurization from, the separation holding unit 300 is not disposed at an intended position between the first and second facing surfaces 130 and 230, and the position is changed.
  • the separation unit 300 is composed of the first separation unit 310 connected in advance to the suction casing 100 and the second separation unit 320 connected in advance to the volute casing 200
  • the position of the first separation holding part 310 and the second separation holding part 320 is not changed, It may be disposed at an intended position between the first facing surface 130 and the second facing surface 230.
  • the pump casing 10 may further include a support part 400 disposed in the arrangement space S2 to support the tip of a support shaft (not shown) supporting the impeller.
  • the support shaft may be a member supporting the impeller.
  • the impeller may be supported by the support shaft and rotated with respect to the support shaft.
  • the tip of the support shaft may pass through the impeller and be supported by the support part 400.
  • the support part 400 is a support body part 410 forming an accommodation space S4 for accommodating the tip of the support shaft, and the support body part 410 protrudes from the inflow space S1.
  • a vortex reduction unit 420 for reducing the eddy current of the fluid moving to the arrangement space S2 and a space in which the fluid flows apart from the vortex reduction unit 420 are formed, and the support body 410 is disposed in the arrangement space ( It may be provided with a support extension 430 supported by the suction casing 100 and/or the volute casing 200 so as to be disposed at a predetermined position on S2).
  • the support shaft may be disposed on the receiving space S4 to transmit the load of the impeller to the support body part 410.
  • the support body 410 may receive the load of the impeller and transmit it to the support extension 430, and the support extension 430 may transfer the load of the impeller to the suction casing 100 or It can be transferred to the volute casing 200.
  • the support part 400 may be disposed on the placement space S2, and when the suction casing 100 and the volute casing 200 are separated, the support part 400 may be separated from the placement space S2. May be.
  • the first facing surface 130 may press the support part 400 in the axial direction so that the support part 400 does not swing in the arrangement space S2.
  • the suction casing 100 may be moved toward the volute casing 200 by fastening the detachable member T, and as a result, the first opposing surface 130 is the detachable member It can be moved toward the volute casing 200 by the fastening of (T).
  • the first opposing surface 130 may press the support extension part 430 of the support part 400 disposed on the arrangement space S2 in the axial direction.
  • the first space keeping part 310 may press the support part 400 in the axial direction so that the support part 400 does not swing in the arrangement space S2.
  • the first space keeping part 310 may be disposed between the first facing surface 130 and the support part 400, and the suction casing 100 may be the detachable member T It can be moved toward the volute casing 200 by fastening of, and as a result, the first space keeping part 310 moves toward the volute casing 200 by pressing the first facing surface 130 Can be.
  • the first space keeping part 310 may press the support extension part 430 of the support part 400 toward the volute casing 200.
  • the support part 400 may be pressed by the support shaft and the first space keeping part 310 to be fixed at a predetermined position on the arrangement space S2.
  • the support extension part 430 of the support part 400 pressed by the first space keeping part 310 is not damaged and the It may be fixed at a predetermined position on the arrangement space S2.
  • the axial direction may mean a horizontal direction in FIG. 1.
  • the second separation holding part 320 may press the support part 400 in a direction orthogonal to the axial direction so that the support part 400 does not swing in the arrangement space S2. .
  • the second separation holding unit 320 may be disposed between the volute body 210 and the support 400, and the support 400 is the second separation holding unit ( 320) may be forcibly fitted, and the second spacing holding part 320 may express an elastic force to press the support part 400 in the orthogonal direction.
  • the support part 400 may receive a centrifugal force radially outward from the support shaft with respect to the rotation axis, and the support part 400
  • the support extension 430 may press the second separation holding part 320 in the orthogonal direction by centrifugal force.
  • the second space keeping part 320 may be pressed against the support extension part 430 of the support part 400.
  • a centrifugal force acts between the second separation holding part 320 and the volute body part 210 to further maximize a sealing effect.
  • the first space keeping part 310 has a first spaced contact part 311 in contact with the second space keeping part 320, a first support contact part 313 in contact with the support part 400, and the A first extension part 315 may be provided that extends from the first support contact part 313 to the inflow space S1 and does not contact the support part 400.
  • first spacing contact part 311 may be in contact with the second spacing part 320 to seal between the second spacing part 320 and the first spacing part 310.
  • the first support contact part 313 may pressurize the support extension part 430 of the support part 400 to seal the space between the first separation part 310 and the suction body part 110. have.
  • first extension part 315 extends from the first support contact part 313 so that the first support contact part 313 may be generated when the first support contact part 313 presses the support part 400 ( 313) can be prevented from being damaged.
  • first extension part 315 may guide the first spaced contact part 311 and the support contact part to be disposed at a predetermined position of the suction casing 100.
  • the second spaced apart part 320 has a second spaced contact part 321 in contact with the first spaced part 310, and a second support contact part 323 in contact with the support part 400 And a second extension part 325 extending from the second support contact part 323 to the arrangement space S2 and not in contact with the support part 400.
  • the second spacing contact part 321 may be in contact with the first spacing part 310 to seal between the first spacing part 310 and the second spacing part 320.
  • the second support contact part 323 may pressurize the support extension part 430 of the support part 400 to seal the space between the second separation maintenance part 320 and the suction body part 110. have.
  • the second extension part 325 extends from the second support contact part 323 so that the second support contact part 323 may be generated when the second support contact part 323 presses the support part 400 ( 323) can be prevented from breaking.
  • the second extension part 325 may guide the second spaced contact part 321 and the support contact part to be disposed at a predetermined position of the volute casing 200.
  • the fluid guide device 3000 may have a configuration corresponding to the support part 400 described above.
  • the fluid guide device 3000 may mean a component of the pump A10 that implements the flow of fluid.
  • the pump casing may form a flow path through which a fluid flows, and may be configured to form a space in which components constituting the pump A10 are disposed.
  • the pump casing is rotated about a predetermined central axis to induce a flow of the fluid and an inflow space (S1) into which the fluid is introduced, a flow path through which fluid is introduced and the fluid is discharged to the outside.
  • An inner space including an arrangement space S2 in which the impeller 4000 is disposed may be formed.
  • the inner space may mean a space inside the pump casing that forms the pump casing to be distinguished from the outside, and the inlet space (S1) into which fluid is introduced from the outside, and the impeller 4000 is disposed. It may be a concept including the arrangement space S2 and the flow path, which is a space through which fluid is moved from the inflow space S1 to the outside through the arrangement space S2 by rotation of the impeller 4000.
  • the predetermined central axis may mean the central axis of the support shaft X to be described below.
  • the pump casing is a suction casing 1000 that forms an inlet space S1 into which a fluid is introduced, and a fluid is introduced from the inlet space S1 by the impeller 4000 and the introduced fluid is discharged to the outside. It may include a volute casing (2000) forming a flow path.
  • the suction casing 1000 and the volute casing 2000 may be made of metal.
  • the suction casing 1000 may be configured to form the inflow space S1 and allow fluid to flow into the inflow space S1 from the outside by the impeller 4000.
  • the suction casing 1000 may be connected to a conduit and/or pipe (not shown) to receive fluid from the conduit and/or pipe.
  • the volute casing 2000 may have a configuration in which a fluid can be introduced from the inflow space S1 by the impeller 4000.
  • volute casing 2000 may form a flow path for transmitting the fluid received from the inflow space S1 to the outside.
  • volute casing 2000 may be connected to a conduit and/or a pipe to transfer fluid to the conduit and/or a pipe.
  • volute casing 2000 may form an arrangement space S2 in which the impeller 4000 is disposed.
  • the impeller 4000 may be disposed on the placement space S2 to express a rotational force, and a fluid may be moved by this rotational force.
  • the fluid may flow from the outside by the impeller 4000 to the inflow space S1 formed by the suction casing 1000, and the volute casing 2000 formed from the inflow space S1. It may be discharged to the outside through the arrangement space S2 along the flow path.
  • the suction casing 1000 may be detachable from the volute casing 2000 by a predetermined detachable member (T).
  • the suction casing 1000 may be connected to or separated from the volute casing 2000 by the detachable member T.
  • suction casing 1000 and the volute casing 2000 may correspond to the suction casing 100 and the volute casing 200 described with reference to FIGS. 1 to 5, detailed descriptions are omitted. do.
  • the pump casing may be formed by combining the suction casing 1000 and the volute casing 2000 by the detachable member T, but is not limited thereto, and the suction casing 1000 and the volute casing 2000 may be integrally formed and defined.
  • the fluid guide device 3000 is disposed on the inner space and moves from the inflow space S1 to the arrangement space S2. It may be a configuration that guides the movement.
  • the fluid guide device 3000 may guide the fluid to reduce a vortex of the fluid moving from the inflow space S1 to the arrangement space S2.
  • the fluid guide device 3000 includes a guide body part 3100 and the guide body part 3100 forming a moving space S5 through which fluid is moved from the inflow space S1 to the arrangement space S2.
  • the guide body part 3100 may have a cylindrical shape forming a hollow, and an area corresponding to the hollow may mean the moving space S5.
  • the guide extension part 3200 may be formed to extend from the guide body part 3100 in the inner direction, that is, in a direction toward the predetermined central axis.
  • the guide extension part 3200 may be formed in a plurality of spaced apart from each other on the guide body part 3100.
  • the moving space S5 may be formed between a plurality of the guide extension parts 3200.
  • the fluid guide device 3000 is a guide extending from the guide extension 3200 and forming an accommodation space S4 for accommodating the tip of the support shaft X supporting the impeller 4000
  • a support part 3400 may be further included.
  • the guide support part 3400 may support a front end, that is, a front side end of the support shaft X.
  • a rear end of the support shaft X that is, a rear end (not shown) may be directly or indirectly supported by the pump casing.
  • the tip of the support shaft X may be inserted into the receiving space S4 and supported by the guide support part 3400.
  • the fluid guide device 3000 may further include a guide contact portion 3300 in contact with the impeller 4000 rotated by an external force in the arrangement space S2.
  • the impeller 4000 may be rotated clockwise and/or counterclockwise by an external force on the support shaft X, and the fluid is disposed from the inflow space S1 by the rotation of the impeller 4000 It can be moved in the direction of the space S2, that is, to the rear side.
  • a force to be moved from the arrangement space (S2) opposite to the movement direction of the fluid to the inflow space (S1), that is, to the front side, may be applied to the impeller 4000 as a reaction to the movement of the fluid.
  • the guide contact portion 3300 is in contact with the impeller 4000 that is rotated while trying to move to the front side to reduce the frictional force with the impeller 4000, thereby maximizing the rotational efficiency of the impeller 4000.
  • the guide contact part 3300 may be a material having a small coefficient of friction.
  • the guide body part 3100 may contact the suction casing 1000 in a front side, and contact the volute casing 2000 in a radial direction based on the predetermined central axis, and the guide toward the rear side. It is constrained by the support shaft X through the support part 3400 and may not be moved in position by the suction casing 1000, the volute casing 2000, and the support shaft X.
  • the guide body portion 3100 is formed of a material having a relatively larger friction coefficient than the guide contact portion 3300 and is constrained to the suction casing 1000, the volute casing 2000, and the support shaft X. Even if an external force is applied in the state in which the position is moved forward, rearward and/or in the radial direction may be restricted.
  • the guide body part 3100 may be formed of a material having a relatively smaller elastic modulus than the guide contact part 3300 and thus a relatively large amount of elasticity change, as a result, the suction casing 1000 and/or the ball It may be press-fit on the lute casing 2000 to be disposed.
  • the guide contact portion 3300 has a lower friction coefficient than the guide body portion 3100 and is formed of a material having a higher elastic modulus, so that the impeller 4000 is relatively larger than the guide body portion 3100.
  • the rotational efficiency can be increased (due to the coefficient of friction), and the elastic deformation caused by the external force applied by the impeller 4000 is small, so that the impeller 4000 can be continuously in contact with the impeller 4000 (due to the elastic coefficient. ).
  • the suction casing 1000 and the ball are relatively larger than the guide contact part 3300. Even if an external force is applied while being constrained to the lute casing 2000 and the support shaft X, positional movement in the front side, rear side and/or the radial direction may be limited (due to the friction coefficient), and external force It can have a function of buffering external force because of the large elastic deformation (due to the elastic modulus).
  • the guide contact part 3300 may be made of carbon steel and/or ceramic material containing carbon such as sintered silicon carbide (SSiC), silicon carbide (SiSiC), or silicon carbide (SiC).
  • SSiC sintered silicon carbide
  • SiSiC silicon carbide
  • SiC silicon carbide
  • the guide body 3100 may be made of a fluororesin material such as PFA, PTFE, FEP, ETFE, EFEP, and/or CPT.
  • the guide extension part 3200 and the guide support part 3400 may be made of the same material as the guide body part 3100.
  • the fluid guide device 3000 fixes the guide contact part 3300 having a preset shape to an injection mold (not shown), and injects a fluororesin into the injection mold to provide the guide body part 3100 and the It may be manufactured by forming the guide extension 3200 and the guide support 3400 in a predetermined shape.
  • the guide body part 3100 may surround at least a part of the guide contact part 3300.
  • the guide contact portion 3300 may be constrained by the guide body portion 3100 and may not be moved in position, and further, the external force transmitted from the impeller 4000 may be transmitted to the guide body portion 3100.
  • the guide contact portion 3300 includes a contact body portion 3310 having a contact surface F in contact with the impeller 4000, and the contact surface F is the guide body portion 3100 It may be disposed to protrude in the direction of the impeller 4000.
  • the guide contact portion 3300 may be formed so that at least a portion of the guide body portion 3100 protrudes to the rear side, and as a result, the contact surface F protrudes from the guide body portion 3100 toward the rear side. Can be formed.
  • the impeller 4000 may not contact the guide body 3100, but may only contact the contact surface F.
  • the contact surface F may mean a surface facing the rear side of the guide contact part 3300, that is, a surface facing the impeller 4000.
  • the guide contact part 3300 may further include a contact protrusion 3330 protruding from the contact main body 3310, and the guide body 3100 includes the contact protrusion 3330 Can be surrounded.
  • the contact protrusion 3330 may be formed to protrude radially from the contact body 3310 with respect to the predetermined central axis.
  • the contact protrusion 3330 may be formed to protrude outward in a radial direction from an outer surface of the contact body 3310 in a radial direction.
  • the contact body part 3310 may be fixed in position on the guide body part 3100 because the contact protrusion part 3330 is constrained by the guide body part 3100.
  • the contact body portion 3310 is restricted from moving to the front side and/or the rear side with respect to the guide body portion 3100 because the contact protrusion portion 3330 is constrained by the guide body portion 3100. I can.
  • the guide extension 3200 may surround at least a part of the contact body 3310.
  • the guide body part 3100 may surround the outer side and the front side in the radial direction of the contact body part 3310, and the guide extension part 3200 is the contact body part 3310 It can surround the inside in the radial direction.
  • At least a part of the contact body 3310 may be surrounded by the guide body 3100 and the guide extension 3200 and fixed at a predetermined position.
  • the contact body portion 3310 may include a contact recess C that is recessed from the contact surface F to form a recessed space.
  • the contact depression (C) may be formed by depression from the contact surface (F) to the front side.
  • the contact depressions C may be formed in a radial direction on the contact surface F, and a plurality of contact depressions C may be formed on the contact surface F.
  • the contact depression C may not be in contact with the impeller 4000 as it is recessed from the contact surface F to the front side.
  • the area of the contact surface F in contact with the impeller 4000 may be reduced, and the rotational efficiency of the impeller 4000 may be increased.
  • heat generated by contact between the impeller 4000 and the contact surface F may be radiated, and further, a function of lubrication may be implemented.
  • the maximum depression distance L1 of the contact depression C from the contact surface F may be smaller than the protrusion distance L2 from the guide body 3100 to the contact surface F. .
  • the contact surface F may be disposed to protrude from the guide body 3100 toward the rear side, and the contact depression portion C may also be disposed toward the rear side. It may be disposed protruding from the main body 3100.
  • the maximum depression distance (L1) of the contact depression (C) from the contact surface (F) to the front side is smaller than the protruding distance (L2) from the guide body portion (3100) to the contact surface (F) toward the rear side. Can be formed.
  • the fluid introduced into the recessed space may pass through the recessed space and move radially outward to move to the opposite surface of the guide body part 3100 facing the impeller 4000.
  • the fluid existing in the recessed space may be moved toward the opposite surface of the guide body part 3100 facing the impeller 4000 having a relatively large space, and as a result, on the recessed space It is possible to reduce the vortex and/or stagnation of the fluid and maximize the function of heat dissipation.
  • the guide body portion 3100 is the pump casing and the guide body portion 3100 so as not to rotate with respect to the predetermined central axis on the pump casing.
  • a first insertion groove B1 into which a fixing member (not shown) for fixing the liver is inserted may be formed.
  • the fixing member may be formed to protrude from an inner surface of a predetermined position of the pump casing so that it can be inserted into the first insertion groove B1.
  • the fixing member may be formed to protrude from an inner surface of a predetermined position of the volute casing 2000 so as to be inserted into the first insertion groove B1.
  • the fixing member may be a separate cylindrical rotation preventing key that is not integrally formed with the pump casing, and in this case, the pump casing may form a groove so that a part of the fixing member can be inserted. May be.
  • the guide body part 3100 is placed on the pump casing.
  • the guide body 3100 may be fixed so as not to rotate about the central axis.
  • the contact body portion 3310 is a first in which the fixing member inserted into the first insertion groove B1 is inserted so as not to rotate with respect to the predetermined central axis on the guide body portion 3100.
  • 2 Insertion groove (B2) can be formed.
  • the fixing member may be inserted into the first insertion groove B1 formed by the guide body part 3100 and at the same time be inserted into the second insertion groove B2 formed by the contact body part 3310.
  • the contact body portion 3310 may not be rotated on the pump casing with respect to the predetermined central axis.
  • first insertion groove (B1) and the second insertion groove (B2) may be formed with the same curvature based on a virtual center point.
  • each of the first insertion groove (B1) and the second insertion groove (B2) penetrates a part of the guide body part 3100 and a part of the contact body part 3310 in the direction of the virtual central axis It may be formed, and may be separated from each other to form a plurality.
  • the magnet pump A10 includes the fluid guide device 3000, the pump casing, an outer magnet 6000 rotated by a motor, and an inner rotated by the outer magnet 6000. It may include a magnet 5000 and the impeller 4000 rotated by the inner magnet (5000).
  • the outer magnet 6000 may be rotated about the predetermined central axis by rotation of a motor, and the inner magnet 5000 may be rotated on the support shaft X by the rotation of the outer magnet 6000.
  • the impeller 4000 may be rotated in conjunction with the inner magnet 5000.
  • the fluid guide device 3000 may be attached to or detached from the pump casing, and may be disposed on the pump casing to guide the fluid.
  • fluid guide device 3000 described with reference to FIGS. 6 to 12 can be applied as a component of the pump casing 10 in place of the support part 400 described with reference to FIGS. 1 to 5.
  • the fluid guide device 3000 described with reference to FIGS. 6 to 12 can be applied as a component of the pump casing 10 in place of the support part 400 described with reference to FIGS. 1 to 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un boîtier de pompe qui forme un espace interne comprenant : un espace d'entrée dans lequel s'écoule un fluide ; un trajet d'écoulement sur lequel le fluide s'écoule à partir de l'espace d'entrée et par lequel le fluide entrant est évacué vers l'extérieur ; et un espace d'agencement dans lequel une hélice tournant autour d'un arbre central prédéterminé de manière à induire l'écoulement du fluide est disposée, et comprenant : un corps d'aspiration destiné à former l'espace d'entrée dans lequel s'écoule le fluide ; et un corps de volute destiné à former le trajet d'écoulement sur lequel le fluide s'écoule à partir de l'espace d'entrée et par lequel le fluide entrant est évacué vers l'extérieur au moyen de la turbine, le carter de volute formant l'espace d'agencement dans lequel la turbine est disposée, et pouvant en outre comprendre un dispositif de guidage de fluide disposé dans l'espace interne de manière à guider le mouvement du fluide se déplaçant en direction de l'espace d'agencement à partir de l'espace d'entrée.
PCT/KR2019/015119 2019-03-06 2019-11-08 Corps de pompe et pompe à aimant comprenant ce dernier Ceased WO2020179985A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/632,015 US20210396246A1 (en) 2019-03-06 2019-11-08 Pump casing and magnet pump including the same
CN201980003686.0A CN112204263A (zh) 2019-03-06 2019-11-08 泵壳及包括其的磁力泵

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR1020190025640A KR102222302B1 (ko) 2019-03-06 2019-03-06 펌프 케이싱 및 이를 포함하는 마그넷 펌프
KR10-2019-0025639 2019-03-06
KR10-2019-0025640 2019-03-06
KR1020190025639A KR102222301B1 (ko) 2019-03-06 2019-03-06 펌프 케이싱 및 이를 포함하는 마그넷 펌프
KR10-2019-0039388 2019-04-04
KR1020190039388A KR102222303B1 (ko) 2019-04-04 2019-04-04 유체 가이드 장치 및 이를 포함하는 마그넷 펌프

Publications (1)

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WO2020179985A1 true WO2020179985A1 (fr) 2020-09-10

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PCT/KR2019/015119 Ceased WO2020179985A1 (fr) 2019-03-06 2019-11-08 Corps de pompe et pompe à aimant comprenant ce dernier

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CN (1) CN112204263A (fr)
WO (1) WO2020179985A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP7240352B2 (ja) * 2020-04-30 2023-03-15 ダイハツ工業株式会社 電動ポンプ

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JPH05302588A (ja) * 1992-04-14 1993-11-16 Ebara Corp インラインポンプ
KR200255363Y1 (ko) * 2001-07-10 2001-12-13 아소마 인코포레이티드 펌프 구조체
JP2002039093A (ja) * 2000-07-24 2002-02-06 Ebara Corp 流体機械
JP3307940B2 (ja) * 1993-03-12 2002-07-29 ウォーマン・インターナショナル・リミテッド グランドシールアッセンブリ
JP2004036707A (ja) * 2002-07-02 2004-02-05 Hitachi Industries Co Ltd 樹脂軸受、及び該樹脂軸受を組み込んだ両吸込渦巻ポンプ
JP2010209847A (ja) * 2009-03-11 2010-09-24 Ihi Corp ターボチャージャ
KR20160122707A (ko) * 2013-12-27 2016-10-24 가부시키가이샤 이와키 마그넷 펌프
EP3128184A1 (fr) * 2014-03-31 2017-02-08 Mitsubishi Heavy Industries, Ltd. Compresseur centrifuge, compresseur de suralimentation et procédé de fabrication de compresseur centrifuge

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KR101819823B1 (ko) * 2015-06-12 2018-01-17 아쏘마 아이엔씨. Pfa 라이너를 구비한 펌프 케이싱의 구조 개선물
DE102016202417A1 (de) * 2016-02-17 2017-08-17 Bühler Motor GmbH Kreiselpumpe
CN107218251A (zh) * 2017-06-06 2017-09-29 武汉船用机械有限责任公司 一种泵头装置
CN207513853U (zh) * 2017-10-16 2018-06-19 深圳市益日新环保设备有限公司 一种磁力驱动泵

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Publication number Priority date Publication date Assignee Title
JPH05302588A (ja) * 1992-04-14 1993-11-16 Ebara Corp インラインポンプ
JP3307940B2 (ja) * 1993-03-12 2002-07-29 ウォーマン・インターナショナル・リミテッド グランドシールアッセンブリ
JP2002039093A (ja) * 2000-07-24 2002-02-06 Ebara Corp 流体機械
KR200255363Y1 (ko) * 2001-07-10 2001-12-13 아소마 인코포레이티드 펌프 구조체
JP2004036707A (ja) * 2002-07-02 2004-02-05 Hitachi Industries Co Ltd 樹脂軸受、及び該樹脂軸受を組み込んだ両吸込渦巻ポンプ
JP2010209847A (ja) * 2009-03-11 2010-09-24 Ihi Corp ターボチャージャ
KR20160122707A (ko) * 2013-12-27 2016-10-24 가부시키가이샤 이와키 마그넷 펌프
EP3128184A1 (fr) * 2014-03-31 2017-02-08 Mitsubishi Heavy Industries, Ltd. Compresseur centrifuge, compresseur de suralimentation et procédé de fabrication de compresseur centrifuge

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US20210396246A1 (en) 2021-12-23

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