CN108278204B - Sealing device of vortex compressor - Google Patents
Sealing device of vortex compressor Download PDFInfo
- Publication number
- CN108278204B CN108278204B CN201810121568.7A CN201810121568A CN108278204B CN 108278204 B CN108278204 B CN 108278204B CN 201810121568 A CN201810121568 A CN 201810121568A CN 108278204 B CN108278204 B CN 108278204B
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- groove
- vortex disc
- movable
- gasket
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 148
- 230000006835 compression Effects 0.000 claims description 39
- 238000007906 compression Methods 0.000 claims description 39
- 230000003068 static effect Effects 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/001—Radial sealings for working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Abstract
The utility model provides a sealing device of scroll compressor, scroll compressor includes movable scroll and quiet vortex dish, sealing device locates between movable scroll and the quiet vortex dish, sealing device includes sealing washer and gasket, the sealing washer includes movable scroll sealing washer and quiet vortex dish sealing washer, the gasket includes movable scroll gasket and quiet vortex dish gasket, the radial sealing performance of vortex dish has been improved in the setting of sealing washer, the contact wearing and tearing of sealing washer and vortex dish have been avoided in the setting of gasket, only need replace gasket and sealing washer after the scroll compressor uses a period, greatly reduced scroll compressor's cost of maintenance.
Description
Technical Field
The invention relates to the field of scroll compressors, in particular to a sealing device of a scroll compressor.
Background
The scroll compressor is widely applied to the automobile industry because of the advantages of energy saving, high efficiency, low noise, stable operation and the like. The vortex compressor is mainly formed by mutually meshing two double-function equation scrolls. In the working processes of air suction, compression and air discharge, a fixed vortex disk is fixed on a frame, an movable vortex disk is driven by a crankshaft and limited by an anti-rotation mechanism, a plane with a small radius is rotated around the base circle center of the fixed vortex disk, air is sucked into the periphery of the fixed vortex disk, and is gradually compressed in a plurality of crescent compression cavities formed by the meshing engagement of the movable vortex disk along with the rotation of an eccentric shaft, and then is continuously distributed out through an axial hole of the central part of the fixed vortex disk.
The tightness of the movable and fixed scroll of the scroll compressor plays a crucial role in the performance of the scroll compressor. In the prior art, the sealing structure of the movable vortex disc and the static vortex disc has general performance, and after the vortex compressor works for a period of time, the sealing strip is easy to wear, so that the sealing performance is reduced, and the working performance of the vortex compressor is directly influenced.
Disclosure of Invention
Based on the problems and disadvantages of the background art, the present invention is directed to a scroll compressor sealing apparatus that has strong sealing properties and is not easily worn.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a sealing device of scroll compressor, scroll compressor includes moves vortex dish and quiet vortex dish, sealing device locates between moving vortex dish and the quiet vortex dish, sealing device includes sealing washer and gasket, the sealing washer includes moves vortex dish sealing washer and quiet vortex dish sealing washer, first recess has been seted up to the scroll top face of moving vortex dish, move vortex dish sealing washer clearance set up in the first recess, move vortex dish sealing washer bottom is provided with first magnet, first recess bottom is provided with the second magnet, first magnet and second magnet set up relatively and magnetism is the same, be equipped with two compression springs in the first recess, spring spout has been seted up respectively to the compression spring both sides wall, compression spring one side sets up in moving vortex dish sealing washer fixed connection with moving vortex dish sealing washer, the opposite side slides and sets up in the spring spout.
Preferably, the scroll top end surface of the fixed scroll is provided with a second groove, the gap of the fixed scroll sealing ring is set in the second groove, the bottom of the fixed scroll sealing ring is provided with a third magnet, the bottom of the second groove is provided with a fourth magnet, the third magnet and the fourth magnet are oppositely arranged and have the same magnetism, two compression springs are arranged in the second groove, two side walls of the second groove are respectively provided with a spring sliding groove, the compression springs are respectively arranged on two sides of the fixed scroll sealing ring, one side of each compression spring is fixedly connected with the fixed scroll sealing ring, and the other side of each compression spring is slidably arranged in the spring sliding groove.
Preferably, the gasket comprises a movable vortex disc gasket and a fixed vortex disc gasket, wherein the movable vortex disc gasket is arranged in the movable vortex disc, and the fixed vortex disc gasket is arranged in the fixed vortex disc; after the movable vortex disc and the fixed vortex disc are assembled, the fixed vortex disc sealing ring is abutted against the surface of the movable vortex disc gasket, and the movable vortex disc sealing ring is abutted against the surface of the fixed vortex disc gasket, so that the cavity is sealed after the movable vortex disc and the fixed vortex disc are assembled.
Preferably, a third groove is formed in the end part of the movable vortex disc sealing ring, and a first sealing ring with the same shape as the third groove is arranged in the third groove; a fourth groove is formed in the end part of the fixed vortex disc sealing ring, and a second sealing ring with the same shape as the fourth groove is arranged in the fourth groove; the surface friction coefficient of the first sealing ring is smaller than that of the movable vortex disc sealing ring, the surface friction coefficient of the second sealing ring is smaller than that of the fixed vortex disc sealing ring, and the surface friction coefficient of the first sealing ring is smaller than that of the second sealing ring.
The beneficial effects of the invention are as follows:
1. the sealing ring gap is arranged in the groove, and the sealing ring is tightly clung to the side wall of the groove by the air pressure generated by the high-pressure air in the compression cavity to the sealing ring, so that the radial sealing performance of the vortex disc is effectively improved.
2. The arrangement of the compression springs at the two sides of the sealing ring can enable the sealing ring to automatically return to the initial position after the scroll compressor stops working, so that the automatic return function of the sealing ring is realized, and the influence caused by dislocation of the sealing ring is avoided.
3. The homopolar magnets arranged at the bottom of the sealing ring and the bottom of the groove can generate repulsive force so as to enable the sealing ring to be tightly attached to the outer surface of the gasket, and therefore the axial sealing performance of the vortex disc is improved. Meanwhile, the sealing ring is not contacted with the groove, so that abrasion between the sealing ring and the groove can be effectively reduced.
4. The side wall of the groove is provided with a spring sliding groove, so that the damage of the compression spring caused by accidental bending can be effectively avoided.
Drawings
FIG. 1 is a partial schematic view of a scroll compressor according to the present invention;
FIG. 2 is a schematic view of a scroll sealing structure of the present invention;
FIG. 3 is a partial schematic view of the orbiting scroll seal structure of the present invention;
FIG. 4 is a partial schematic view of a seal structure of a fixed scroll of the present invention;
FIG. 5 is a partial schematic view of the orbiting scroll seal during operation of the scroll compressor of the present invention;
FIG. 6 is a partial schematic view of a seal structure of a fixed scroll in operation of the scroll compressor of the present invention;
FIG. 7 is a cross-sectional view of the orbiting scroll seal of the present invention;
fig. 8 is a cross-sectional view of the seal ring of the fixed scroll of the present invention.
Reference numerals illustrate: the dynamic vortex disc 1, the static vortex disc 2, the dynamic vortex disc gasket 3, the static vortex disc gasket 4, the air inlet 5, the exhaust valve 6, the exhaust port 7, the dynamic vortex disc sealing ring 10, the static vortex disc sealing ring 11, the first sealing ring 12, the compression spring 13, the first magnet 14, the second magnet 15, the spring sliding groove 16, the second groove 17, the first groove 18, the fourth magnet 19, the third magnet 20, the second sealing ring 21, the third groove 22 and the fourth groove 23.
Detailed Description
The present invention will be further described with reference to the drawings and the detailed description below, but the present invention is not limited to the following, and can be arbitrarily modified and implemented within the scope of not departing from the gist of the present invention.
As shown in fig. 1, the side wall of a movable vortex disk 1 of the vortex compressor is provided with an air inlet 5, the top of the movable vortex disk 1 is provided with an air outlet 9, an exhaust valve 8 is fixedly connected with the top of the movable vortex disk 1 through a screw, and the exhaust valve 8 is arranged above the air outlet 9. The movable vortex plate 1 and the fixed vortex plate 2 are enclosed to form a compression cavity, the air inlet 5 is communicated with a low-pressure cavity, the air outlet 9 is communicated with a high-pressure cavity, gas in the low-pressure cavity flows into the compression cavity through the air inlet 5, high-pressure air is formed after the gas is compressed, and the gas is discharged to the high-pressure cavity through the air outlet 9.
As shown in fig. 2-6, a sealing device is disposed between the movable scroll 1 and the fixed scroll 2, the sealing device includes a sealing ring and a gasket, the sealing ring includes a movable scroll sealing ring 10 and a fixed scroll sealing ring 11, a first groove 18 is formed along a molded line on a top end surface of a scroll of the movable scroll 1, a gap between the movable scroll sealing ring 10 and the movable scroll sealing ring 18 is disposed in the first groove 18, a first magnet 14 is disposed at a bottom of the movable scroll sealing ring 10, a second magnet 15 is disposed at a bottom of the first groove 18, the first magnet 14 and the second magnet 15 are disposed opposite to each other and have the same magnetism (both are positive or negative), two compression springs 13 are disposed in the first groove 18, spring sliding grooves 16 are formed on two side walls of the first groove 18, the compression springs 13 are disposed on two sides of the movable scroll sealing ring 10, one side of the compression springs 13 is fixedly connected with the movable scroll sealing ring 10, and the other side is slidably disposed in the spring sliding grooves 16.
The scroll top surface of the fixed scroll 2 is provided with a second groove 17, the gap of the fixed scroll sealing ring 11 is set in the second groove 17, the bottom of the fixed scroll sealing ring 11 is provided with a third magnet 20, the bottom of the second groove 17 is provided with a fourth magnet 19, the third magnet 20 and the fourth magnet 19 are oppositely arranged and have the same magnetism (same positive pole or negative pole), two compression springs 13 are arranged in the second groove 17, spring sliding grooves 16 are respectively formed in two side walls of the second groove 17, the compression springs 13 are respectively arranged on two sides of the fixed scroll sealing ring 11, one side of each compression spring 13 is fixedly connected with the fixed scroll sealing ring 11, and the other side of each compression spring is slidably arranged in each spring sliding groove 16.
The gaskets comprise an orbiting scroll gasket 3 and a fixed scroll gasket 4, the orbiting scroll gasket 3 is arranged in the orbiting scroll 1, and the fixed scroll gasket 4 is arranged in the fixed scroll 2; after the movable vortex disc 1 and the fixed vortex disc 2 are assembled, the fixed vortex disc sealing ring 11 abuts against the surface of the movable vortex disc gasket 3, and the movable vortex disc sealing ring 10 abuts against the surface of the fixed vortex disc gasket 4, so that a cavity is sealed after the movable vortex disc 1 and the fixed vortex disc 2 are assembled.
Because the gas is compressed to form high-pressure gas along with the volume reduction of the compression cavity after entering the compression cavity formed by the surrounding of the movable scroll 1 and the fixed scroll 2, the high-pressure gas in the compression cavity generates air pressure to the movable scroll sealing ring 10 and the fixed scroll sealing ring 11 which are arranged in the first groove 18 and the second groove 17 in a gap manner, so that the movable scroll sealing ring 10 and the fixed scroll sealing ring 11 are pushed to the side walls of the first groove 18 and the second groove 17. At the moment, the sealing ring is tightly attached to the side wall of the groove under the action of air pressure, so that the radial sealing performance of the vortex disc is improved.
And because the sealing ring is pushed to the side wall of the groove by air pressure, the compression spring 13 on the joint side of the sealing ring and the side wall of the groove is in a compressed state at the moment, when the vortex compressor stops working, the air pressure disappears, and the elastic force of the compression spring 13 pushes the sealing ring to return to the initial position at the moment, so that the automatic return function of the sealing ring is realized.
The magnets arranged at the bottom of the sealing ring and the magnets arranged at the bottom of the groove have the same magnetic poles, and homopolar magnets generate repulsive force to push the sealing ring to the outer surface of the gasket. At the moment, the sealing ring is tightly attached to the outer surface of the gasket under the action of repulsive force, so that the axial sealing performance of the vortex disc is improved.
The side walls of the first groove 18 and the second groove 17 are provided with a spring chute 16, one side of the compression spring 13 is slidably arranged in the spring chute 16, and when the movable scroll sealing ring 10 and the fixed scroll sealing ring 11 axially move due to the action of the repulsive force of the magnet, the compression spring 13 axially slides in the spring chute along with the axial movement of the sealing rings, so that the bending of the compression spring is avoided, and the arrangement of the spring chute can effectively avoid the damage of the compression spring caused by accidental bending.
The gaskets comprise an orbiting scroll gasket 3 and a fixed scroll gasket 4, the orbiting scroll gasket 3 is arranged in the orbiting scroll 1, and the fixed scroll gasket 4 is arranged in the fixed scroll 2; after the movable vortex disc 1 and the fixed vortex disc 2 are assembled, the fixed vortex disc sealing ring 11 abuts against the surface of the movable vortex disc gasket 3, and the movable vortex disc sealing ring 10 abuts against the surface of the fixed vortex disc gasket 4, so that a cavity is sealed after the movable vortex disc 1 and the fixed vortex disc 2 are assembled. The arrangement of the gasket avoids contact abrasion between the sealing ring and the vortex disc, and the vortex compressor only needs to replace the gasket and the sealing ring after being used for a period of time, so that the maintenance cost of the vortex compressor is greatly reduced.
As shown in fig. 7-8, a third groove 22 is formed at the end of the orbiting scroll seal ring 10, and a first seal ring 12 having the same shape as the third groove 22 is accommodated in the third groove 22; a fourth groove 23 is formed in the end part of the fixed scroll sealing ring 11, and a second sealing ring 21 with the same shape as the fourth groove 23 is arranged in the fourth groove 23; the surface friction coefficient of the first sealing ring 12 is smaller than that of the movable vortex disc sealing ring 10, the surface friction coefficient of the second sealing ring 21 is smaller than that of the fixed vortex disc sealing ring 11, and the surface friction coefficient of the first sealing ring 12 is smaller than that of the second sealing ring 21.
Because the friction coefficient of the first sealing ring 12 and the second sealing ring 21 is smaller than that of the movable vortex disc sealing ring 10 and the static vortex disc sealing ring 11, the friction force generated when the movable vortex disc sealing ring and the static vortex disc sealing ring are in contact with the gasket can be reduced, so that the sealing ring and the gasket can ensure air tightness and the service lives of the sealing ring and the gasket can be prolonged. The friction coefficient of the first sealing ring 12 is smaller than that of the second sealing ring 21, so that abrasion of the fixed scroll gasket 4 and the movable scroll sealing ring due to the action of high-pressure gas can be effectively reduced.
The present invention has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present invention and to implement the same, but not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (1)
1. The utility model provides a sealing device of scroll compressor, scroll compressor includes movable scroll (1) and quiet vortex dish (2), sealing device locates between movable scroll (1) and quiet vortex dish (2), its characterized in that: the sealing device comprises a sealing ring and a gasket, the sealing ring comprises a movable vortex disc sealing ring (10) and a fixed vortex disc sealing ring (11), a first groove (18) is formed in the top end face of a vortex of a movable vortex disc (1), the movable vortex disc sealing ring (10) is arranged in the first groove (18) in a gap mode, a first magnet (14) is arranged at the bottom of the movable vortex disc sealing ring (10), a second magnet (15) is arranged at the bottom of the first groove (18), the first magnet (14) and the second magnet (15) are oppositely arranged and have the same magnetism, two compression springs (13) are arranged in the first groove (18), spring sliding grooves (16) are respectively formed in two side walls of the first groove (18), the compression springs (13) are respectively arranged on two sides of the movable vortex disc sealing ring (10), one side of each compression spring (13) is fixedly connected with the movable vortex disc sealing ring (10), and the other side of each compression spring is slidably arranged in the spring sliding grooves (16);
wherein: the scroll top surface of the fixed scroll (2) is provided with a second groove (17), the fixed scroll sealing ring (11) is arranged in the second groove (17) in a gap mode, a third magnet (20) is arranged at the bottom of the fixed scroll sealing ring (11), a fourth magnet (19) is arranged at the bottom of the second groove (17), the third magnet (20) and the fourth magnet (19) are oppositely arranged and have the same magnetism, two compression springs (13) are arranged in the second groove (17), spring sliding grooves (16) are respectively formed in two side walls of the second groove (17), the compression springs (13) are respectively arranged on two sides of the fixed scroll sealing ring (11), one side of each compression spring (13) is fixedly connected with the fixed scroll sealing ring (11), and the other side of each compression spring is slidably arranged in each spring sliding groove (16);
the gasket comprises a movable vortex disc gasket (3) and a fixed vortex disc gasket (4), wherein the movable vortex disc gasket (3) is arranged in the movable vortex disc (1), and the fixed vortex disc gasket (4) is arranged in the fixed vortex disc (2); after the movable vortex disc (1) and the fixed vortex disc (2) are assembled, the fixed vortex disc sealing ring (11) is abutted against the surface of the movable vortex disc gasket (3), and the movable vortex disc sealing ring (10) is abutted against the surface of the fixed vortex disc gasket (4), so that a cavity is sealed after the movable vortex disc (1) and the fixed vortex disc (2) are assembled;
a third groove (22) is formed in the end part of the movable vortex disc sealing ring (10), and a first sealing ring (12) with the same shape as the third groove (22) is arranged in the third groove (22); a fourth groove (23) is formed in the end part of the fixed vortex disc sealing ring (11), and a second sealing ring (21) with the same shape as the fourth groove (23) is arranged in the fourth groove (23); the surface friction coefficient of the first sealing ring (12) is smaller than that of the movable vortex disc sealing ring (10), the surface friction coefficient of the second sealing ring (21) is smaller than that of the static vortex disc sealing ring (11), and the surface friction coefficient of the first sealing ring (12) is smaller than that of the second sealing ring (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121568.7A CN108278204B (en) | 2018-02-07 | 2018-02-07 | Sealing device of vortex compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810121568.7A CN108278204B (en) | 2018-02-07 | 2018-02-07 | Sealing device of vortex compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278204A CN108278204A (en) | 2018-07-13 |
| CN108278204B true CN108278204B (en) | 2023-12-19 |
Family
ID=62807898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810121568.7A Active CN108278204B (en) | 2018-02-07 | 2018-02-07 | Sealing device of vortex compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108278204B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279960B (en) * | 2021-07-05 | 2022-03-08 | 珠海格力电器股份有限公司 | Pump body structure, scroll compressor and air conditioner |
| GB2621827A (en) * | 2022-08-22 | 2024-02-28 | Edwards S R O | Scroll pump seal, scroll pump and method |
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| CN206234111U (en) * | 2016-11-04 | 2017-06-09 | 上海光裕汽车空调压缩机股份有限公司 | A kind of whirlpool dish structure of scroll compressor of automobile air conditioner |
| CN206681985U (en) * | 2017-04-07 | 2017-11-28 | 浙江露通机电有限公司 | A kind of screw compressor molded line sealing structure |
| CN207879601U (en) * | 2018-02-07 | 2018-09-18 | 宁波汇峰聚威科技股份有限公司 | A kind of sealing device of screw compressor |
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2018
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|---|---|---|---|---|
| JPS5581296A (en) * | 1978-12-15 | 1980-06-19 | Sanden Corp | Positive-displacement fluid compressor |
| JPH05195969A (en) * | 1992-01-16 | 1993-08-06 | Kobe Steel Ltd | Scroll compressor |
| JPH0643285U (en) * | 1992-11-16 | 1994-06-07 | 株式会社神戸製鋼所 | Scroll compressor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108278204A (en) | 2018-07-13 |
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