CN109162967B - Bearing cooling device, compressor, and bearing cooling control method - Google Patents
Bearing cooling device, compressor, and bearing cooling control method Download PDFInfo
- Publication number
- CN109162967B CN109162967B CN201811313089.1A CN201811313089A CN109162967B CN 109162967 B CN109162967 B CN 109162967B CN 201811313089 A CN201811313089 A CN 201811313089A CN 109162967 B CN109162967 B CN 109162967B
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- Prior art keywords
- pressure
- bearing cooling
- liquid storage
- cooling device
- bypass channel
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- 238000001816 cooling Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 139
- 239000003507 refrigerant Substances 0.000 claims abstract description 65
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 14
- 239000011550 stock solution Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000243 solution Substances 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a bearing cooling device, a compressor and a bearing cooling control method. The bearing cooling device comprises a liquid storage cavity liquid storage shell for storing a refrigerant, a bypass channel communicated with the liquid storage cavity and used for outputting a gaseous refrigerant, and an adjusting device, wherein the adjusting device comprises a pressure sensor for detecting the pressure in the liquid storage cavity and an on-off control piece arranged on the bypass channel, and the on-off control piece controls the on-off of the bypass channel according to the pressure measured by the pressure sensor. According to the bearing cooling device, the bypass channel for outputting the gaseous refrigerant is arranged, and the on-off control piece is arranged to control the on-off of the bypass channel according to the pressure in the liquid storage cavity, so that when the actual pressure in the liquid storage cavity does not accord with the set pressure range, the on-off of the bypass channel can be controlled to control whether the gaseous refrigerant is output or not, the pressure in the liquid storage cavity is regulated in real time, and further, enough refrigerant is ensured to cool the bearing, and the use reliability of the bearing is improved.
Description
Technical Field
The invention relates to the technical field of bearing cooling, in particular to a bearing cooling device, a compressor and a bearing cooling control method.
Background
Bearings heat up during machine operation, and lubricating oil is typically used in the prior art to cool the bearings. For centrifugal compressors, sliding bearings are generally used for high-cooling-capacity heavy-load low-speed models, rolling bearings are generally used for low-cooling-capacity light-load high-speed models, and compared with the sliding bearings, the rolling bearings have lower heating values.
In the related art, a centrifugal compressor for light load may employ a refrigerant as a cooling medium of a bearing. As shown in fig. 1 and 2, the centrifugal compressor includes a seal cover plate 1a, a seal gasket 2a, a seal plug 3a, a housing 4a, and a fastening screw 5a. The housing 4a and the sealing cover plate 1a form a liquid storage cavity. The upper side of the liquid storage cavity is provided with a refrigerant inlet LI, and the lower side is provided with a refrigerant outlet LO. In the actual use process, a certain amount of liquid refrigerant is input through the refrigerant inlet LI, and the liquid refrigerant is output to the bearing from the refrigerant outlet LO so as to cool the bearing. In order to ensure that the bearing has enough lubrication and cooling when the rotating shaft rotates in an idle mode so as to avoid serious faults of a unit caused by burning of the bearing, a certain liquid refrigerant with a certain liquid level in the liquid storage cavity needs to be ensured, and a certain oil supply pressure difference is ensured. Because the refrigerant is heated and gasified easily, when the gasified refrigerant in the liquid storage cavity is quite a lot, the liquid refrigerant in the cavity can be quite little because the volume in the cavity is constant, the pressure can be increased, the liquid refrigerant for cooling the bearing is insufficient at the moment, the liquid supply pressure difference can be reduced, the flowing resistance of the liquid refrigerant is increased, and the fluidity is poor. When the pressure in the liquid storage cavity is increased to be close to the pressure of the liquid supply, the phenomenon that the refrigerant cannot enter the bearing and the bearing burns can be caused.
Disclosure of Invention
The invention aims to provide a bearing cooling device, a compressor and a bearing cooling control method, so as to improve the use reliability of a bearing.
A first aspect of the present invention provides a bearing cooling device comprising:
a liquid storage shell provided with a liquid storage cavity for storing a refrigerant;
the bypass channel is communicated with the liquid storage cavity and is used for outputting gaseous refrigerant; and
the regulating device comprises a pressure sensor for detecting the pressure in the liquid storage cavity and an on-off control piece arranged on the bypass channel, and the on-off control piece controls the on-off of the bypass channel according to the pressure measured by the pressure sensor.
In some embodiments, the regulating device further comprises a liquid level sensor, and the on-off control piece controls the on-off of the bypass channel according to the pressure measured by the pressure sensor and the refrigerant liquid level measured by the liquid level sensor.
In some embodiments, the level sensor is height adjustably positioned.
In some embodiments, the on-off control comprises an electronic expansion valve, and the regulating device further comprises a feedback control circuit disposed between the pressure sensor and the electronic expansion valve.
In some embodiments, the bearing cooling device includes a plug body inserted on the reservoir housing, the plug body having a plug body passage in communication with the reservoir chamber, the plug body passage forming at least a portion of the bypass passage.
In some embodiments, the bearing cooling device includes a bypass tube having an interior cavity in communication with the plug body passage and forming a bypass passage with the plug body passage.
In some embodiments, the adjustment device further comprises a level sensor disposed at an end of the plug body, the plug body being adjustably disposed relative to the depth of insertion of the reservoir housing to adjust a height of the level sensor.
In some embodiments, the plug body is threadably engaged with the reservoir housing.
In some embodiments, the cross-sectional shape of the reservoir is circular or square.
A second aspect of the invention provides a compressor comprising a bearing cooling arrangement as provided in any one of the first aspects of the invention.
A third aspect of the present invention provides a bearing cooling control method using the bearing cooling device provided in any one of the first aspect of the present invention, comprising the steps of:
judging whether the actual pressure in the liquid storage cavity is lower than a set pressure range;
if the actual pressure is lower than the set pressure range, the on-off control piece controls the bypass channel to be disconnected; and if the actual pressure is higher than the set pressure range, the on-off control piece controls the bypass channel to be communicated.
In some embodiments, the bearing cooling control method further comprises, if the actual pressure is within the set pressure range,
judging whether the actual liquid level in the liquid storage cavity is lower than a set minimum liquid level;
if the actual liquid level is lower than the set minimum liquid level, controlling the bypass channel to be communicated so as to output gas refrigerant; and if the actual liquid level is not lower than the set minimum liquid level, controlling the bypass channel to be disconnected.
Based on the technical scheme provided by the invention, the bearing cooling device controls the on-off of the bypass channel according to the pressure in the liquid storage cavity by arranging the bypass channel for outputting the gaseous refrigerant and arranging the on-off control piece, so that the on-off of the bypass channel can be controlled to control whether the gaseous refrigerant is output or not when the actual pressure in the liquid storage cavity does not accord with the set pressure range, thereby carrying out real-time regulation on the pressure in the liquid storage cavity, and further ensuring that enough refrigerant cools the bearing so as to improve the use reliability of the bearing.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic elevational view of a related art bearing cooling device;
FIG. 2 is a schematic A-A cross-sectional view of the bearing cooling apparatus shown in FIG. 1;
FIG. 3 is a schematic diagram of a front view of a bearing cooling device according to an embodiment of the present invention;
FIG. 4 is a schematic A-A cross-sectional view of the bearing cooling apparatus shown in FIG. 3;
FIGS. 5 and 6 are schematic illustrations of the bearing cooling device of FIG. 3 at two different fluid levels;
fig. 7 is a schematic front view of a bearing cooling device according to another embodiment of the present invention.
Each reference numeral represents:
1a, a sealing cover plate; 2a, a sealing gasket; 3a, sealing plugs; 4a, a shell; 5a, fastening screws;
1. an electronic expansion valve; 2. a bypass pipe; 3. a cover plate; 4. a sealing gasket; 5. a plug body; 6. a sealing gasket; 7. sealing the O-shaped ring; 8. a pressure sensor; 9. a liquid level sensor; 10. sealing the plugs; 11. a liquid storage housing; 12. a feedback control circuit; 13. a fastening screw; LI, liquid refrigerant inlet; LO and liquid refrigerant outlet; GO, gaseous refrigerant outlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 3 and 4, the bearing cooling device of the embodiment of the present invention includes:
a liquid storage housing 11 having a liquid storage chamber Q for storing a refrigerant;
the bypass channel is communicated with the liquid storage cavity Q and is used for outputting a gaseous refrigerant; and
the regulating device comprises a pressure sensor 8 for detecting the pressure in the liquid storage cavity Q and an on-off control piece arranged on the bypass channel, and the on-off control piece controls the on-off of the bypass channel according to the pressure measured by the pressure sensor 8.
The bearing cooling device of this embodiment is used for outputting the bypass passageway of gaseous refrigerant and sets up the break-make control piece and come the break-make of control bypass passageway according to the pressure in the stock solution chamber through setting up, therefore can control the break-make of bypass passageway and control whether gaseous refrigerant output thereby carry out real-time regulation to the pressure in the stock solution chamber when the actual pressure in the stock solution chamber does not accord with the settlement pressure range, and then guarantee that sufficient refrigerant cools off the bearing in order to improve the reliability of use of bearing.
The structure of the bearing cooling device according to an embodiment of the present invention will be described in detail with reference to fig. 3 to 6.
As shown in fig. 3 and 4, the bearing cooling device of the present embodiment includes a reservoir housing 11 having a reservoir Q, and a cover plate 3, a gasket seal 4, and a plug seal 10 for sealing the reservoir Q. The cover plate 3 is fixedly connected with the liquid storage shell 11 through a fastening screw 13 to form a liquid storage cavity in a buckled mode. A sealing gasket 4 is disposed between the cover plate 3 and the side end surface of the liquid storage housing 11 in this embodiment, and a sealing plug 10 is further disposed on the upper portion of the liquid storage housing 11 to ensure tightness of the liquid storage cavity Q in this embodiment.
As shown in fig. 4, the liquid storage chamber of the present embodiment has a liquid refrigerant inlet LI and a liquid refrigerant outlet LO. The liquid refrigerant flows out from the liquid refrigerant outlet LO and enters the bearing to cool and lubricate the bearing after being input into the liquid refrigerant cavity from the liquid refrigerant inlet LI. Because the bearing clearance is very small, it plays certain throttle effect to the flow of refrigerant, namely, the bearing is in liquid refrigerant export LO department to refrigerant flow certain resistance so that liquid refrigerant fills the liquid storage chamber. And after the refrigerant in the liquid storage cavity rises to a certain liquid level, the liquid storage cavity reaches an equilibrium state.
In order to ensure that enough liquid refrigerant exists in the liquid storage cavity, the liquid level of the liquid refrigerant in the liquid storage cavity needs to be measured, and the adjusting device of the embodiment further comprises a liquid level sensor 9, wherein the liquid level sensor 9 is arranged at the position of the set minimum liquid level. As shown in fig. 5, when the actual liquid level H1 of the liquid refrigerant is lower than the set minimum liquid level H2, the liquid level sensor 9 cannot detect the liquid refrigerant, and at this time, the bypass channel is controlled to be communicated to enable the gaseous refrigerant to flow out along the bypass channel, which is equivalent to releasing the pressure of the liquid storage cavity Q, so that the liquid refrigerant input from the liquid refrigerant inlet LI continuously fills the liquid storage cavity Q to enable the liquid level thereof to continuously rise. As shown in fig. 6, when the actual level H1 of the liquid refrigerant exceeds the set minimum level H2, the liquid refrigerant is detected by the level sensor 9, which means that the pressure in the liquid storage chamber Q does not need to be regulated any more, so that the bypass channel is controlled to be opened to prevent the gaseous refrigerant from flowing out.
In the process of adjusting the pressure, the bypass channel is possibly connected for too long due to inaccurate detection caused by fluctuation of the liquid level of the liquid refrigerant just near the liquid level sensor 9, so that the pressure in the liquid storage cavity Q leaks too fast. In order to avoid that the pressure in the reservoir is relieved too quickly, the bearing cooling device of the present embodiment further comprises a pressure sensor 8, which pressure sensor 8 is arranged to detect the pressure in the reservoir. When the pressure sensor 8 detects that the pressure does not meet the requirement, the pressure sensor 8 can send out a forced command to disconnect the bypass channel, and only after the pressure sensor rises to a proper value, the pressure sensor 8 can stop sending out the forced command so that the bearing cooling device can control the bypass channel according to the liquid level measured by the liquid level sensor 9. That is, the control priority of the pressure sensor 8 is higher than that of the liquid level sensor 9.
In this embodiment, as shown in fig. 4, the bearing cooling device of this embodiment further includes a plug body 5 inserted in the liquid storage housing, where the plug body 5 has a plug body channel that communicates with the liquid storage cavity, and the plug body channel forms at least a part of the bypass channel.
Specifically, the bearing cooling device further comprises a bypass pipe 2, wherein the inner cavity of the bypass pipe 2 is communicated with the plug body channel and forms a bypass channel together with the plug body channel. The port of the bypass pipe 2 forms a gaseous refrigerant outlet GO.
In order to control the on-off of the bypass passage, the control device of the present embodiment includes an on-off control member disposed on the bypass pipe 2, where the on-off control member is configured to control the on-off of the bypass passage in an on-off manner according to the refrigerant liquid level measured by the liquid level sensor 9 and/or the pressure measured by the pressure sensor 8.
Preferably, the on-off control of the present embodiment comprises an electronic expansion valve 1. The control device further comprises a feedback control line 12 arranged between the level sensor 9 and/or the pressure sensor 8 and the electronic expansion valve 1. The liquid level sensor 9 or the pressure sensor 8 can directly control the opening or closing of the electronic expansion valve 1 through a feedback control line 12.
The set minimum liquid level of the liquid refrigerant in the liquid storage cavity of the bearing cooling device is different according to different compressors and the running working conditions of the unit. In order to increase the applicable range of the bearing cooling device of the present embodiment, the height of the liquid level sensor 9 of the bearing cooling device of the present embodiment is adjustably provided.
The liquid level sensor 9 of the present embodiment is provided at the end of the plug body 5. The plug body 5 is adjustably arranged with respect to the insertion depth of the reservoir housing to vary the height of the liquid level sensor 9.
As shown in fig. 4, the plug body 5 of the present embodiment is screwed with the liquid storage housing 11, and the insertion depth of the plug body 5 with respect to the liquid storage housing 11 is adjusted by adjusting the screw depth of the fit between the plug body 5 and the liquid storage housing 11.
Specifically, in order to ensure the tightness of the fit between the plug body 5 and the liquid storage housing 11, a sealing gasket 6 is provided between the plug body 5 and the liquid storage housing 11 of the present embodiment. The height of the liquid level sensor 9 can be adjusted by adjusting the thickness of the sealing gasket 6.
A sealing O-ring 7 is also arranged between the plug body 5 of the embodiment and the upper end surface of the liquid storage shell.
The cross-sectional shape of the liquid storage chamber Q of this embodiment is circular.
In another embodiment, as shown in fig. 7, the cross-sectional shape of the reservoir is square in order to increase the amount of liquid stored in the reservoir.
The embodiment also provides a compressor comprising the bearing cooling device of the above embodiment. When the bearing cooling device is used for cooling the bearing of the compressor, the refrigerant of the compressor can be directly used for cooling the bearing.
In particular, the compressor may be a centrifugal compressor.
The bearing cooling control method of the bearing cooling device of the embodiment comprises the following steps:
judging whether the actual pressure in the liquid storage cavity Q is lower than a set pressure range;
if the actual pressure is lower than the set pressure range, the on-off control piece controls the bypass channel to be disconnected; and if the actual pressure is higher than the set pressure range, the on-off control piece controls the bypass channel to be communicated.
Preferably, the bearing cooling control method further includes, when the actual pressure in the reservoir chamber Q is within the set pressure range,
judging whether the actual liquid level in the liquid storage cavity is lower than a set minimum liquid level;
if the actual liquid level is lower than the set minimum liquid level, controlling the bypass channel to be communicated so as to output gas refrigerant; and if the actual liquid level is not lower than the set minimum liquid level, controlling the bypass channel to be disconnected.
The bearing cooling method of the embodiment sets the control priority of the pressure in the liquid storage cavity to be higher than the control priority of the liquid level, which is beneficial to preventing the pressure in the liquid storage cavity from being excessively released.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (10)
1. A bearing cooling device, comprising:
a liquid storage housing (11) having a liquid storage chamber (Q) for storing a refrigerant;
a bypass channel which is communicated with the liquid storage cavity (Q) and is used for outputting gaseous refrigerant; and
the regulating device comprises a pressure sensor (8) for detecting the pressure in the liquid storage cavity (Q) and an on-off control piece arranged on the bypass channel, wherein the on-off control piece controls the on-off of the bypass channel according to the pressure detected by the pressure sensor (8), the regulating device further comprises a liquid level sensor (9), and the on-off control piece controls the on-off of the bypass channel according to the pressure detected by the pressure sensor (8) and the refrigerant liquid level detected by the liquid level sensor (9).
2. Bearing cooling device according to claim 1, characterized in that the level sensor (9) is height-adjustably arranged.
3. Bearing cooling device according to claim 1, wherein the on-off control comprises an electronic expansion valve (1), the regulating device further comprising a feedback control line (12) arranged between the pressure sensor (8) and the electronic expansion valve (1).
4. Bearing cooling device according to claim 1, characterized in that it comprises a plug (5) inserted on the reservoir housing (11), the plug (5) having a plug channel communicating with the reservoir chamber (Q), the plug channel forming at least part of the bypass channel.
5. Bearing cooling device according to claim 4, characterized in that it comprises a bypass pipe (2), the inner cavity of which bypass pipe (2) communicates with the plug body channel and forms the bypass channel together with the plug body channel.
6. Bearing cooling device according to claim 4, wherein the adjustment device further comprises a level sensor (9) arranged at an end of the plug body (5), the plug body (5) being adjustably arranged with respect to the insertion depth of the reservoir housing (11) for adjusting the height of the level sensor (9).
7. Bearing cooling device according to claim 6, wherein the plug body (5) is screw-fitted with the reservoir housing (11).
8. Bearing cooling device according to claim 1, characterized in that the cross-sectional shape of the reservoir (Q) is circular or square.
9. A compressor comprising a bearing cooling device according to any one of claims 1 to 8.
10. A bearing cooling control method using the bearing cooling device according to any one of claims 1 to 8, characterized by comprising the steps of:
judging whether the actual pressure in the liquid storage cavity is lower than a set pressure range;
if the actual pressure is lower than the set pressure range, the on-off control piece controls the bypass channel to be disconnected; if the actual pressure is higher than the set pressure range, the on-off control piece controls the bypass channel to be communicated;
if the actual pressure is in the set pressure range, judging whether the actual liquid level in the liquid storage cavity is lower than a set minimum liquid level or not; if the actual liquid level is lower than the set minimum liquid level, controlling the bypass channel to be communicated so as to output a gas refrigerant; and if the actual liquid level is not lower than the set minimum liquid level, controlling the bypass channel to be disconnected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313089.1A CN109162967B (en) | 2018-11-06 | 2018-11-06 | Bearing cooling device, compressor, and bearing cooling control method |
| PCT/CN2018/121132 WO2020093521A1 (en) | 2018-11-06 | 2018-12-14 | Bearing cooling device, compressor, and bearing cooling control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811313089.1A CN109162967B (en) | 2018-11-06 | 2018-11-06 | Bearing cooling device, compressor, and bearing cooling control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162967A CN109162967A (en) | 2019-01-08 |
| CN109162967B true CN109162967B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811313089.1A Active CN109162967B (en) | 2018-11-06 | 2018-11-06 | Bearing cooling device, compressor, and bearing cooling control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109162967B (en) |
| WO (1) | WO2020093521A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090588B (en) * | 2020-01-09 | 2024-04-30 | 珠海格力电器股份有限公司 | Compressor, refrigeration system and bearing cavity liquid level adjusting method of compressor |
| CN113090554B (en) * | 2020-01-09 | 2022-02-22 | 珠海格力电器股份有限公司 | Compressor and refrigerant circulation system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594029A (en) * | 2011-01-14 | 2012-07-18 | 瑞美技术有限责任公司 | Electric machine having an integrated coolant level sensor |
| EP2568234A2 (en) * | 2011-09-09 | 2013-03-13 | LG Electronics | Air conditioner and method for controlling the same |
| JP2014020688A (en) * | 2012-07-19 | 2014-02-03 | Espec Corp | Environment control device |
| CN204693906U (en) * | 2015-05-13 | 2015-10-07 | 四川依米康环境科技股份有限公司 | A kind of room system that can solve air conditioner in machine room fluid reservoir consumption degree of supercooling |
| CN105466094A (en) * | 2015-12-25 | 2016-04-06 | 珠海格力电器股份有限公司 | Liquid level detection system, air conditioning system with same and liquid level control method |
| CN105627650A (en) * | 2016-01-18 | 2016-06-01 | 珠海格力电器股份有限公司 | Liquid refrigerant control method and device |
| CN206113384U (en) * | 2016-09-10 | 2017-04-19 | 赵向辉 | Refrigeration or heat pump system |
| CN107394947A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of refrigeration compressor cooling structure |
| CN208966715U (en) * | 2018-11-06 | 2019-06-11 | 珠海格力电器股份有限公司 | Bearing cooling device and compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000045991A (en) * | 1998-07-30 | 2000-02-15 | Mitsubishi Heavy Ind Ltd | Refrigerant lubricating system for refrigerator compressor |
| CN203430866U (en) * | 2013-07-29 | 2014-02-12 | 江苏大学 | Cooling device for horizontal centrifugal pump shaft and bearing |
| KR20160008411A (en) * | 2014-07-14 | 2016-01-22 | 한온시스템 주식회사 | Device for cooling bearing in centrifugal compressor |
| CN204729347U (en) * | 2015-05-20 | 2015-10-28 | 苏州沃达园林机械有限公司 | High inlet pressure inter-section booster |
-
2018
- 2018-11-06 CN CN201811313089.1A patent/CN109162967B/en active Active
- 2018-12-14 WO PCT/CN2018/121132 patent/WO2020093521A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594029A (en) * | 2011-01-14 | 2012-07-18 | 瑞美技术有限责任公司 | Electric machine having an integrated coolant level sensor |
| EP2568234A2 (en) * | 2011-09-09 | 2013-03-13 | LG Electronics | Air conditioner and method for controlling the same |
| JP2014020688A (en) * | 2012-07-19 | 2014-02-03 | Espec Corp | Environment control device |
| CN204693906U (en) * | 2015-05-13 | 2015-10-07 | 四川依米康环境科技股份有限公司 | A kind of room system that can solve air conditioner in machine room fluid reservoir consumption degree of supercooling |
| CN105466094A (en) * | 2015-12-25 | 2016-04-06 | 珠海格力电器股份有限公司 | Liquid level detection system, air conditioning system with same and liquid level control method |
| CN105627650A (en) * | 2016-01-18 | 2016-06-01 | 珠海格力电器股份有限公司 | Liquid refrigerant control method and device |
| CN206113384U (en) * | 2016-09-10 | 2017-04-19 | 赵向辉 | Refrigeration or heat pump system |
| CN107394947A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of refrigeration compressor cooling structure |
| CN208966715U (en) * | 2018-11-06 | 2019-06-11 | 珠海格力电器股份有限公司 | Bearing cooling device and compressor |
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|---|---|
| WO2020093521A1 (en) | 2020-05-14 |
| CN109162967A (en) | 2019-01-08 |
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