CN109869327A - A kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing - Google Patents
A kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing Download PDFInfo
- Publication number
- CN109869327A CN109869327A CN201910089214.3A CN201910089214A CN109869327A CN 109869327 A CN109869327 A CN 109869327A CN 201910089214 A CN201910089214 A CN 201910089214A CN 109869327 A CN109869327 A CN 109869327A
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- thrust bearing
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- foil
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- 239000011888 foil Substances 0.000 claims abstract description 47
- 239000000314 lubricant Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
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Abstract
The invention discloses a kind of centrifugal compressors using quiet dynamic pressure mixed gas thrust bearing, are related to centrifugal compressor design field, including shell: stator；Rotor；Thrust button；A pair of of thrust bearing, positioned at the two sides of thrust button, the opposite side of thrust bearing is equipped with boss B and wave foil B, boss B and wave foil B are arranged radially along thrust bearing, the two sides of boss B are arranged in wave foil B, and the top of wave foil B is equipped with face height of the height lower than top foil B of top foil B, boss B；The side of thrust bearing is equipped with channel B, and boss B is equipped with the through-hole B being connected to channel B, and shell is equipped with the air supply channel communicated with channel B.The invention has the advantages that being used cooperatively by quiet hydrodynamic thrust bearing, can reduce the fretting wear between hydrodynamic bearing top foil and thrust button during start-stop process and compressor axial load increase, improve compressor service life；The pressure of bearing working face is effectively improved, bearing load carrying capacity is improved.
Description
Technical field
The present invention relates to centrifugal compressor design fields, especially a kind of to use quiet dynamic pressure mixed gas thrust bearing
Centrifugal compressor.
Background technique
High revolving speed is the Major Technology of centrifugal compressor miniaturization.Traditional oil lubrication rolling bearing and sliding
Bearing cannot be run because of the limitation of its own structure and principle under ultrahigh speed.This is the main skill of centrifugal compressor miniaturization
One of art bottleneck.
Gas bearing has stable, low power consumption and other advantages under high speed, is the core that centrifugal compressor realizes high speed
Technology.In recent years, gas lubricated thrust bearing technology gradually starts to be applied in centrifugal compressor.Gas bearing has hydrostatic gas-lubricated bearing
With two kinds of hydrodynamic gas-lubricated bearing.Hydrostatic gas-lubricated bearing shutdown process is steady, large carrying capacity, but the stability under its high speed is poor
(pneumatic hammer) needs stable external gas supply；Hydrodynamic gas-lubricated bearing have high-speed working condition under high stability, do not need external confession
Gas, but its shutdown process can cause to damage to bearing surface, have certain start-stop time limitation, influence the use of compressor.From
When operating condition changes, axial force often increases heart press suddenly, and thrust bearing is caused to destroy, and finally makes to compress
Machine disorderly closedown.
Existing hydrostatic gas-lubricated bearing needs outside for high pressure gas, and corollary equipment is complicated, at high cost.Existing kinetic pressure gas axis
It holds shutdown process presence and touches mill phenomenon, height is required on the friction and wear behavior of the material of bearing and finally influences bearing life.From
When heart compressor variable working condition, axial load increases, and the bearing capacity of kinetic pressure gas thrust bearing is lower, tends not to rise very well
To the effect of balancing axial load.
Summary of the invention
The purpose of the present invention is increasing aerostatic bearing, reduces bearing friction, improves bearing life, devising one kind makes
With the centrifugal compressor of quiet dynamic pressure mixed gas thrust bearing.
To achieve the goals above, the technical scheme is that, it is a kind of using quiet dynamic pressure mixed gas thrust bearing
Centrifugal compressor, including shell, further includes: stator is set in the shell；Rotor, rotary setting in the shell, with
The stator is corresponding；Thrust button is set on the rotor；And a pair of of thrust bearing, it is set in the shell, is located at
The two sides of the thrust button, the opposite side of the thrust bearing be equipped with boss B and wave foil B, the boss B and wave foil B along
The thrust bearing is arranged radially, and the two sides of boss B are arranged in the wave foil B, and the top of the wave foil B is equipped with top foil B, described
Face height of the height of boss B lower than the top foil B；The side of the thrust bearing is equipped with channel B, on the boss B
Equipped with the through-hole B being connected to channel B, the shell is equipped with the air supply channel communicated with channel B.
Further, the quantity of the boss B is eight, and the quantity of the wave foil B is eight.
Further, the surface of the boss B is coated with lubricant layer.
Further, the side of the thrust bearing is equipped with annular groove.
Further, the shell includes the shell set gradually, first support, casing, second support and cover board, institute
It states thrust bearing to be arranged between casing and second support, the second support is equipped with air supply channel.
It further, further include transverse bearing, the transverse bearing is fixedly installed in the shell, the transverse bearing
Inner ring be equipped with boss A and wave foil A, the two sides of boss A are arranged in the wave foil A, and the top of the wave foil A is equipped with top foil A, institute
Face height of the height lower than the top foil A of boss A is stated, the boss A is equipped with the through-hole A through transverse bearing, institute
Shell is stated equipped with air supply channel identical with through-hole A.
Further, the quantity of the boss A is two, and the quantity of the wave foil A is three.
Further, the surface of the boss A is coated with lubricant layer.
Further, the outside of the through-hole A is equipped with counter sink.
Further, the quantity of the transverse bearing is two, is separately positioned on the both ends of rotor.
Further, the shell includes the shell set gradually, first support, casing, second support and cover board, institute
Transverse bearing to be stated to be arranged in first shell and second shell, the stator is fixedly installed on the casing, and described first
Frame and second support are equipped with air supply channel.
The beneficial effects of the present invention are: being used cooperatively by quiet hydrodynamic thrust bearing, can reduce hydrodynamic bearing top foil
Fretting wear between thrust button during start-stop process and compressor axial load increase improves compressor and uses the longevity
Life；It can effectively improve the pressure of bearing working face, to improve bearing load carrying capacity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of compressor in the application；
Fig. 2 is the structural schematic diagram of transverse bearing in the application；
Fig. 3 is the partial enlargement diagram in Fig. 2 at A；
Fig. 4 is the schematic cross-sectional view of transverse bearing；
Fig. 5 is the structural schematic diagram of thrust button in the application；
Fig. 6 is the schematic view of the front view of Fig. 5；
Fig. 7 is the left view structural representation of Fig. 6；
Fig. 8 is the schematic cross-sectional view in Fig. 6 at B-B；
Fig. 9 is the partial enlargement diagram in Fig. 7 at C.
In above each figure, 1, shell；10, air supply channel；11, shell；12, first support；13, casing；14, second
Frame；15, cover board；2, transverse bearing；21, boss A；22, wave foil A；23, foil A is pushed up；24, through-hole A；3, stator；4, rotor；5, only
Push-plate；6, thrust bearing；61, boss B；62, wave foil B；63, foil B is pushed up；64, channel B；65, through-hole B.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, to specific embodiment, structure, feature and its effect according to the present invention, detailed description are as follows:
A kind of centrifugal compressor using quiet dynamic pressure hybrid radial gas bearing, as shown in Figures 1 to 9, including shell 1,
Transverse bearing 2, stator 3 and rotor 4.
As shown in Figures 2 to 4, transverse bearing 2 is fixed in shell 1, and the quantity of transverse bearing 2 is two, radial
Bearing 2 is separately positioned on the both ends of rotor 4.The inner ring of transverse bearing 2 is equipped with boss A21 and wave foil A22, wave foil A22 setting exists
The two sides of boss A21, the top of wave foil A22 are equipped with face height of the height lower than top foil A23 of top foil A23, boss A21,
It avoids in normal work, boss A21 and the axis of rotor 4 are in contact.Boss A21 is equipped with the through-hole through transverse bearing 2
A24, shell 1 are equipped with air supply channel 10 corresponding with through-hole A24, can infuse from 10 via through holes A24 of air supply channel into shell 1
Enter gas or liquid.For convenience of use, counter sink can be equipped in the outside of through-hole A24.In figure, the quantity of boss A21 is two,
The quantity of wave foil A22 is three, increases the input rate of gas or liquid.Preferably, on the surface of boss A21 and top foil A23
It is coated with lubricant layer, avoids contact with surface breakdown when friction.
As shown in Figure 1, stator 3 is arranged in shell 1.Rotor 4 is rotatably provided in transverse bearing 2, rotor 4 and stator 3
It is corresponding.
Shell 1 is mainly used for installation and uses.About the structure of shell 1, this application provides a kind of design scheme, shell 1 is wrapped
Include the shell 11 set gradually, first support 12, casing 13, second support 14 and cover board 15.Transverse bearing 2 is arranged in first shell
On body 11 and second shell 11, stator 3 is fixedly installed on casing 13, and first support 12 and second support 14 are equipped with gas supply and lead to
Road 10.
As shown in Fig. 1, Fig. 5 to Fig. 9, thrust button 5 is arranged on rotor 4, for providing the axial force of rotor 4.A pair is stopped
Thrust bearing 6 is arranged in shell 1, and two thrust bearings 6 are located at the two sides of thrust button 5.The opposite side of thrust bearing 6 is set
There are boss B61 and wave foil B62, boss B61 and wave foil B62 to be arranged radially along thrust bearing 6, wave foil B62 is arranged in boss B61
Two sides, the top of wave foil B62 is equipped with the height of top foil B63, boss B61 lower than the face height of top foil B63, avoids just
Often when work, boss B61 and the side of thrust button 5 are in contact.The side of thrust bearing 6 is equipped with channel B64, on boss B61
Equipped with the through-hole B65 being connected to channel B64, shell 1 is equipped with the air supply channel 10 communicated with channel B64, can be from air supply channel
10 inject gas or liquid into shell 1 through channel B64 and through-hole B65.For convenience of use, can be set in the side of thrust bearing 6
There is annular groove 66, through-hole B65 is arranged in annular groove 66.In figure, the quantity of boss B61 is eight, and the quantity of wave foil B62 is eight
It is a, increase the input rate of gas or liquid.Preferably, it is coated with lubricant layer on the surface of boss B61 and top foil B63, avoids connecing
Touch surface breakdown when wiping.Thrust bearing 6 is arranged between casing 13 and second support 14, and second support 14 is equipped with gas supply
Channel 10.
Before compressor start, external feeder is first passed through to the air supply channel 10 of compressor and supplies high pressure gas or liquid
Body, the gas or liquid of high pressure pass through the gap that the through-hole A24 being arranged on boss A21 enters rotor 4 and transverse bearing 2, from
And it is suspended in rotor 4 in transverse bearing 2.Then start compressor, as the revolving speed of suspension rotor 4 is gradually increased, dynamic pressure
Effect gradually shows, and when rotor 4 can be floated by the power that transverse bearing 2 generates, which is hydrostatic bearing.
External high pressure supplied gas or liquid are cut off, compressor steady operation, i.e. compressor in the state of only aero dynamic bearing are made
Hydrodynamic bearing operation is switched to after stable operation.
It, can be by radial direction when compressor load increases, and hydrodynamic bearing is not able to satisfy compressor steady operation and needs
Bearing 2 supplies to improve the load-bearing capacity of bearing.When compressor needs to shut down, first opens external high pressure gas or liquid is logical
Road, guarantee bearing has enough bearing capacitys, then compressor rotary speed is gradually reduced to stopping, pressurized air axis during this
Performance main function is held, the purpose of protection hydrodynamic bearing is played.
When compressor axial load increases, high pressure gas or liquid are supplied to air supply channel 10 by external feeder
Body, the gas or liquid of high pressure enter the gap of thrust button 5 and thrust bearing 6 by channel B64 and through-hole B65, thus flat
The axle load of weighing apparatus compressor.
Above with reference to preferred embodiment, invention has been described, but protection scope of the present invention is not restricted to
This can carry out various improvement to it and can be replaced wherein with equivalent without departing from the scope of the invention
Component, as long as be not present structural conflict, it is mentioned in the various embodiments items technical characteristic can combine in any way
Get up, and any reference signs in the claims should not be construed as limiting the involved claims, no matter comes from which point
It sees, the present embodiments are to be considered as illustrative and not restrictive.Therefore, any to fall within the scope of the appended claims
All technical solutions be within the scope of the invention.
Claims (5)
1. a kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing, including shell (1), which is characterized in that also wrap
It includes:
Stator (3) is set in the shell (1)；And
Rotor (4), rotary setting are corresponding with the stator (3) in the shell (1)；
Thrust button (5) is set on the rotor (4)；And
A pair of of thrust bearing (6) is set in the shell (1), is located at the two sides of the thrust button (5), the thrust bearing
(6) opposite side is equipped with boss B (61) and wave foil B (62), and the boss B (61) and wave foil B (62) are along the thrust shaft
It holds (6) to be arranged radially, wave foil B (62) setting is equipped with top foil B in the two sides of (61) boss B, the top of the wave foil B (62)
(63), face height of the height of the boss B (61) lower than top foil B (63)；The side of the thrust bearing (6) is set
Have channel B (64), the boss B (61) is equipped with the through-hole B (65) that be connected to channel B (64), the shell (1) equipped with
The air supply channel (10) that channel B (64) is communicated.
2. a kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing according to claim 1, feature exist
In the quantity of the boss B (61) is eight, and the quantity of the wave foil B (62) is eight.
3. a kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing according to claim 1, feature exist
In the surface of the boss B (61) is coated with lubricant layer.
4. a kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing according to claim 1, feature exist
In the side of the thrust bearing (6) is equipped with annular groove (66).
5. a kind of centrifugal compressor using quiet dynamic pressure mixed gas thrust bearing according to claim 4, feature exist
In the shell (1) includes the shell (11) set gradually, first support (12), casing (13), second support (14) and cover board
(15), the thrust bearing (6) is arranged between casing (13) and second support (14), and the second support (14), which is equipped with, to supply
Gas channel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089214.3A CN109869327B (en) | 2019-01-30 | 2019-01-30 | Centrifugal compressor using static and dynamic pressure mixed gas thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089214.3A CN109869327B (en) | 2019-01-30 | 2019-01-30 | Centrifugal compressor using static and dynamic pressure mixed gas thrust bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109869327A true CN109869327A (en) | 2019-06-11 |
| CN109869327B CN109869327B (en) | 2020-11-17 |
Family
ID=66918433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910089214.3A Active CN109869327B (en) | 2019-01-30 | 2019-01-30 | Centrifugal compressor using static and dynamic pressure mixed gas thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109869327B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500293A (en) * | 2019-08-30 | 2019-11-26 | 广州市昊志机电股份有限公司 | Centrifugal compressor |
| CN111608930A (en) * | 2020-05-20 | 2020-09-01 | 无锡职业技术学院 | Gas bearing and gas bearing type centrifugal compressor |
| CN111608929A (en) * | 2020-05-20 | 2020-09-01 | 无锡职业技术学院 | Centrifugal compressor and refrigerating system of gas bearing |
| WO2024113892A1 (en) * | 2022-11-30 | 2024-06-06 | 珠海格力电器股份有限公司 | Fault diagnosis apparatus and method based on transformer oil fluorescence multivariate calibration analysis |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366427A (en) * | 1965-11-01 | 1968-01-30 | Garrett Corp | Selectively pressurized foil bearing arrangements |
| US4227753A (en) * | 1978-12-29 | 1980-10-14 | Mechanical Technology Incorporated | Compliant gas thrust bearing with profiled and apertured thrust runner |
| KR20080086264A (en) * | 2007-03-22 | 2008-09-25 | 삼성테크윈 주식회사 | Damping system of air foil bearing |
| CN103343775A (en) * | 2013-07-08 | 2013-10-09 | 上海大学 | Gas bearing integrated by dynamic pressure and static pressure |
| CN204164008U (en) * | 2014-10-27 | 2015-02-18 | 福建雪人股份有限公司 | A kind of centrifugal compressor |
-
2019
- 2019-01-30 CN CN201910089214.3A patent/CN109869327B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3366427A (en) * | 1965-11-01 | 1968-01-30 | Garrett Corp | Selectively pressurized foil bearing arrangements |
| US4227753A (en) * | 1978-12-29 | 1980-10-14 | Mechanical Technology Incorporated | Compliant gas thrust bearing with profiled and apertured thrust runner |
| KR20080086264A (en) * | 2007-03-22 | 2008-09-25 | 삼성테크윈 주식회사 | Damping system of air foil bearing |
| CN103343775A (en) * | 2013-07-08 | 2013-10-09 | 上海大学 | Gas bearing integrated by dynamic pressure and static pressure |
| CN204164008U (en) * | 2014-10-27 | 2015-02-18 | 福建雪人股份有限公司 | A kind of centrifugal compressor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500293A (en) * | 2019-08-30 | 2019-11-26 | 广州市昊志机电股份有限公司 | Centrifugal compressor |
| CN110500293B (en) * | 2019-08-30 | 2021-09-21 | 广州市昊志机电股份有限公司 | Centrifugal compressor |
| CN111608930A (en) * | 2020-05-20 | 2020-09-01 | 无锡职业技术学院 | Gas bearing and gas bearing type centrifugal compressor |
| CN111608929A (en) * | 2020-05-20 | 2020-09-01 | 无锡职业技术学院 | Centrifugal compressor and refrigerating system of gas bearing |
| CN111608929B (en) * | 2020-05-20 | 2022-04-01 | 无锡职业技术学院 | Refrigerating system with gas bearing type centrifugal compressor |
| WO2024113892A1 (en) * | 2022-11-30 | 2024-06-06 | 珠海格力电器股份有限公司 | Fault diagnosis apparatus and method based on transformer oil fluorescence multivariate calibration analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109869327B (en) | 2020-11-17 |
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Effective date of registration: 20211123 Address after: 230000 Room 301, floor 3, building 5, phase 5, intelligent equipment science park, east of Susong road and north of Guanhai Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui run'an Sibian Energy Technology Co.,Ltd. Address before: 266000 Songling Road, Laoshan District, Qingdao, Shandong Province, No. 99 Patentee before: QINGDAO University OF SCIENCE AND TECHNOLOGY |