CN109286265A - Motor rear end cap structure seals liquid device and centrifugal compressor - Google Patents
Motor rear end cap structure seals liquid device and centrifugal compressor Download PDFInfo
- Publication number
- CN109286265A CN109286265A CN201811272689.8A CN201811272689A CN109286265A CN 109286265 A CN109286265 A CN 109286265A CN 201811272689 A CN201811272689 A CN 201811272689A CN 109286265 A CN109286265 A CN 109286265A
- Authority
- CN
- China
- Prior art keywords
- rear end
- hydrojet
- end cover
- sealing
- motor rear
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000003507 refrigerant Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 20
- 125000004122 cyclic group Chemical group 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 abstract 8
- 239000003921 oil Substances 0.000 description 21
- 238000000926 separation method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a liquid homogenizing device for a motor rear end cover structure seal and a centrifugal compressor, relates to the technical field of compressors, and solves the technical problems that in the prior art, a liquid spraying sleeve of a motor rear end cover is not sealed enough and a motor shaft cannot be cooled sufficiently due to uneven liquid spraying of a refrigerant. The liquid equalizing device with the motor rear end cover structure comprises an oil-blocking seal and a liquid spraying sleeve arranged in the oil-blocking seal, a motor shaft is installed in the liquid spraying sleeve in a matched mode, and a sealing device for sealing oil and a liquid equalizing device for enabling gaseous refrigerant to spray liquid uniformly are arranged between the oil-blocking seal and the liquid spraying sleeve. The centrifugal compressor comprises an impeller, a rotating shaft, a main shell, a motor assembly and the motor rear end cover structural sealing and liquid equalizing device, wherein the motor rear end cover structural sealing and liquid equalizing device is arranged on the motor assembly. According to the invention, through a double-sealing mode, the sealing performance between the liquid spraying sleeve and the oil-blocking seal of the motor rear end cover structure is effectively ensured, leakage is prevented, liquid spraying blind areas are reduced, and liquid spraying is uniform.
Description
Technical field
The present invention relates to the technical field of compressor, especially a kind of motor rear end cover structure seals equal liquid device and centrifugation
The technical field of formula compressor.
Background technique
With the improvement of living standards, large centrifugal water-cooling screw rod machine is widely used in the central refrigerating of building,
As the chief component of centrifugal compressor, motor shaft carries important role, therefore motor shaft branch in operational process
The rear end cap level of processing of support and cooling system has directly influenced the actual motion state of unit.
Insufficient seal failure problem is sealed between the hydrojet sleeve and oil resistance sealing contact surface of rear end cap will lead to refrigerant let out
Leakage, the motor shaft bearing portion lubricating oil film also resulted in can not generate, in addition, there is also the cooling insufficient problem of motor shaft, gaseous state
Refrigerant hydrojet is uneven, will lead to motor shaft and is unable to fully cool down, the thermal deformation of motor shaft part, and serious motor shaft temperature is excessively high
It may result in and burn.
Summary of the invention
The object of the invention is to solve the problems of the prior art, propose that a kind of motor rear end cover structure seals equal liquid dress
It sets and centrifugal compressor is made between the hydrojet sleeve of motor rear end cover structure and oil resistance sealing by dual hard sealing means
Sealing performance improves, and leakproofness is effectively ensured, prevents from revealing, while reducing hydrojet blind area, refrigerant Liquid injection cooling is uniform.
To achieve the above object, the invention proposes a kind of equal liquid device of motor rear end cover structure sealing, including oil resistance are close
Envelope and the hydrojet sleeve in oil resistance sealing, are coupled motor shaft in hydrojet sleeve, between oil resistance sealing and hydrojet sleeve
Equipped with the sealing device for sealing oil liquid and make gaseous coolant hydrojet uniformly equal liquid device.
Preferably, the sealing means of the sealing device are sealed using hot jacket, sealing device includes spaced more
A sealing ring, state of cooling lower seal outer diameter are greater than oil resistance seal inner diameter.
Preferably, the sealing device is arranged in hydrojet lower cartridge, sealing device further includes V-groove.
Preferably, the V-groove is arranged in the middle part of upper seal and lower seal medium position, V-groove depth is
0.02mm, 60 ° of apex angle.
Preferably, the equal liquid device includes level-one part flow arrangement and second level part flow arrangement, the setting of level-one part flow arrangement
Between lower seal and middle sealing ring, lower seal covers on the cyclic annular side of level-one part flow arrangement, and middle sealing snare is two
On the cyclic annular side of level shunt device, second level part flow arrangement is arranged between middle sealing ring and upper seal.
Preferably, the cyclic annular side of the level-one part flow arrangement is equipped with side butt hole as refrigerant passage, level-one
Part flow arrangement further includes a fraction stomata, and a fraction stomata is arranged on the cyclic annular side of second level part flow arrangement.
Preferably, the fraction stomata is the through-hole for being connected to level-one part flow arrangement and second level part flow arrangement, it is set as 2
It is a, it is symmetrical in 180 °.
Preferably, the second level part flow arrangement includes hydrojet baffle and hydrojet channel, hydrojet baffle fills two level shunts
Partition is set into the region of two not intercommunications.
Preferably, the hydrojet baffle plate setting is 2, it is in 180 ° of symmetrical, 2 fraction gas of hydrojet baffle distance
The distance in hole is identical.
Preferably, the hydrojet channel, which is located on second level part flow arrangement, leads to hydrojet sleeve inner.
Preferably, further including liquid-jet device, the liquid-jet device includes the angle nozzle for being connected to hydrojet upper cartridge,
Angle nozzle is equipped with will carry out cooling diffusivity mouth spray to motor shaft in refrigerant hydrojet to motor shaft.
Preferably, the hydrojet channel of the diffusivity mouth spray connection hydrojet sleeve inner, the number of diffusivity mouth spray
Amount is 6.
Preferably, the opening of the angle nozzle is set as the slope gradually increased to opening internal diameter mouthful.
The invention also provides following technical schemes:
A kind of centrifugal compressor, including impeller, rotary shaft, main casing, electric machine assembly and above-mentioned back end cover for motor knot
Structure seals equal liquid device, and the motor rear end cover structure seals equal liquid device and is arranged on electric machine assembly.
Preferably, refrigerant is by motor when the equal liquid device of the motor rear end cover structure sealing is mounted on electric machine assembly
Cooling tube enters rear end cap labyrinth seal, and the side butt hole of level-one part flow arrangement is entered by labyrinth seal.
Beneficial effects of the present invention:
1, the present invention realized in such a way that hot charging and V-groove structure combine sealing between hydrojet sleeve and oil resistance sealing with
Fastening, at the same to guarantee to seal, projected depth 0.02mm, 60 ° of angle of equilateral triangle V-groove structure, and meanwhile sleeve is most lower
Side is similarly changed to the mode of hot jacket, and leakproofness is effectively ensured, and solves sleeve and oil resistance sealing contact surface flatness deficiency etc.
Leak case caused by reason；
2, the present invention realizes that gaseous coolant uniformly sprays to by the way that equal device of air is arranged and increases hydrojet sleeve hydrojet slope mouthful
Motor shaft surrounding effectively increases motor shaft cooling length, reduces motor shaft localized heat deformation probability and avoids motor shaft
The excessively high problem of temperature.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that motor rear end cover structure seals equal liquid device structural schematic diagram；
Fig. 2 is the structural schematic diagram that motor rear end cover structure seals another angle of equal liquid device；
Fig. 3 is the partial enlarged view for the sealing device that motor rear end cover structure seals equal liquid device；
Fig. 4 is the schematic perspective view that motor rear end cover structure seals equal liquid device.
In figure
1- hydrojet sleeve, 11-V type groove, 12- sealing ring, 2- level-one part flow arrangement, mono- fraction stomata of 21-, bis- level shunt of 3-
Device, 31- hydrojet baffle, 32- hydrojet channel, 4- angle nozzle, the slope 41- mouthful, 42- diffusivity mouth spray.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
As shown in Figure 1, Figure 2, Fig. 4, the present invention provides a kind of motor rear end cover structures to seal equal liquid device, including oil resistance sealing
Hydrojet sleeve 1 in oil resistance sealing, is coupled motor shaft in hydrojet sleeve 1, between oil resistance sealing and hydrojet sleeve 1
Equipped with the sealing device for sealing oil liquid and make gaseous coolant hydrojet uniformly equal liquid device.
Such as Fig. 3, a V-groove 11 is respectively arranged in upper seal middle part and lower seal medium position, and 11 depth of V-groove is
0.02mm, improves the sealing performance between hydrojet sleeve and oil resistance sealing by 60 ° of apex angle.Since sealing ring outer diameter is sealed greater than oil resistance
Internal diameter, oil resistance sealing device can shrink extruding and form expression lobes at V-groove 11 when cooling, further strengthen close
Feng Xing.
As shown in Figure 1, Figure 2, the sealing means of Fig. 4, the sealing device are sealed using hot jacket, and sealing device includes interval setting
Multiple sealing rings 12,12 outer diameter of state of cooling lower seal be greater than oil resistance seal inner diameter.Since structure is close using hot jacket
Envelope, therefore the operation of the anti-leak of conventional hermetic mode can not execute, the outer diameter of hot jacket sealing ring, state of cooling lower seal wants resistivity
Oil-tightening internal diameter is slightly larger, realizes sealing function using hot jacket mode.Sealing device setting is close in 1 lower part of hydrojet sleeve
Seal apparatus further includes V-groove 11.
The equal liquid device includes level-one part flow arrangement 2 and second level part flow arrangement 3, and the setting of level-one part flow arrangement 2 is close under
Between seal and middle sealing ring, lower seal covers on the cyclic annular side of level-one part flow arrangement 2, and middle sealing snare is in two level shunts
On the cyclic annular side of device 3, second level part flow arrangement 3 is arranged between middle sealing ring and upper seal.
The cyclic annular side of the level-one part flow arrangement 2 is equipped with side butt hole as refrigerant passage, level-one part flow arrangement 2
It further include a fraction stomata 21, a fraction stomata 21 is arranged on the cyclic annular side of second level part flow arrangement 3.The one fraction stomata
21 be the through-hole for being connected to level-one part flow arrangement 2 and second level part flow arrangement 3, is set as 2, symmetrical in 180 °.
Gaseous coolant is divided into two parts by two fraction stomatas by level-one part flow arrangement 2, allow oil resistance seal inside spray
Liquid mouth sprays level-one part flow arrangement 2 position of the gaseous coolant below the cyclic annular side of second level part flow arrangement 3 and is just hitting hydrojet sleeve
1, due to being orthogonal shock, gaseous coolant is divided into two, and enters second level part flow arrangement 3, while one by a fraction stomata 21
Fraction stomata 21 is arranged in middle position, it is ensured that refrigerant to the consistency of both ends distance effectively increases the uniform of two sides refrigerant
Property.Second level part flow arrangement 3 is responsible for the gaseous coolant that level-one part flow arrangement 2 divides being separated into more parts.
The second level part flow arrangement 3 includes hydrojet baffle 31 and hydrojet channel 32, and hydrojet baffle 31 is by second level part flow arrangement 3
Separate into the region of two not intercommunications.
The hydrojet baffle 31 is set as 2, is in 180 ° of symmetrical, 31 distance of hydrojet baffle, 2 fraction stomatas 21
Distance it is identical.Hydrojet baffle is symmetrical, effectively obstructs interfering with each other for secondary liquid separation process, further increases the equal of hydrojet
Even property.
The hydrojet channel 32 is located on second level part flow arrangement 3 and leads to inside hydrojet sleeve 1.
It further include liquid-jet device, the liquid-jet device includes the angle nozzle 4 for being connected to 1 top of hydrojet sleeve, angle spray
Mouth 4 is equipped with will carry out cooling diffusivity mouth spray 42 to motor shaft in refrigerant hydrojet to motor shaft.
The diffusivity mouth spray 42 connects the hydrojet channel 32 inside hydrojet sleeve 1, the quantity of diffusivity mouth spray 42
It is 6~10, preferably 6.
The opening of the angle nozzle 4 is set as the slope gradually increased to opening internal diameter mouthful 41.Angle nozzle 4 is open
Sloping mouth mode is set, the contact area of refrigerant and motor shaft is improved, the cooling segment length of expanded motor effectively prevents market
Cooling blind area caused by upper routine hydrojet sleeve direct-injection, reduces motor shaft localized heat deformation probability and motor shaft temperature is excessively high
Problem.
The invention also provides following technical schemes:
A kind of centrifugal compressor, including impeller, rotary shaft, main casing, electric machine assembly and above-mentioned back end cover for motor knot
Structure seals equal liquid device, and the motor rear end cover structure seals equal liquid device and is arranged on electric machine assembly.
When the equal liquid device of the motor rear end cover structure sealing is mounted on electric machine assembly, refrigerant is entered by motor cooling tube
Rear end cap labyrinth seal is entered the side butt hole of level-one part flow arrangement 2 by labyrinth seal.
The course of work of the invention:
Gaseous coolant is to enter rear end cap labyrinth seal from motor cooling tube, by labyrinth seal and 2 side of level-one part flow arrangement
Side butt hole enters level-one part flow arrangement 2, enters second level part flow arrangement 3 from level-one part flow arrangement 2 by a fraction stomata 21,
Heat exchange, becomes liquid refrigerants, then be finally sprayed onto motor shaft from diffusivity mouth spray 42 from hydrojet channel 32 during this
On motor shaft is cooled down.
By optimizing, the related components structure of hydrojet sleeve reaches optimization sealing to the rear end cover structure and raising hydrojet is equal
Even property purpose, specific design point are as follows:
1, be designed to side seal form, using the big characteristic of side sealing surface, reduce in bottom hot jacket seal process because
Seal failure problem caused by the reasons such as dimensional fits, soffit plane degree.
2, V-groove sealing structure is designed, the mode of cooperation side hot jacket sealing has effectively blocked gaseous coolant flow path, mentioned
High leakproofness.
3, twin-stage liquid distributing device is set, efficiently solves single-stage liquid separation process because liquid separation caused by liquid separation circuit is more is uneven
The problem of.
4, sloping mouth mode is arranged in hydrojet sleeve mouth spray, effectively increases hydrojet range, reduces to motor shaft
Cooling blind area range.
This structure uses dual hard sealing means, the i.e. sealing of side hot jacket and 11 structure of V-groove, efficiently solves sealing and asks
Three hot jacket sealing rings are arranged in topic first on hydrojet sleeve, and hot jacket sealing ring outer diameter is slightly larger than oil resistance seal inner diameter, really
Cold insulation but after oil resistance sealing and hydrojet sleeve gapless, while reduce in the market this structure conventional hermetic mode because oil resistance seals or
Person's hydrojet sleeve bottom flatness is insufficient or cooperation is apart from improper caused bottom coolant leakage, motor shaft bearing portion lubricating oil
The problem of film can not generate.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.
Claims (16)
1. a kind of motor rear end cover structure seals equal liquid device, it is characterised in that: sealed including oil resistance and in oil resistance sealing
Hydrojet sleeve (1), is coupled motor shaft in hydrojet sleeve (1), Seal Oil is equipped between oil resistance sealing and hydrojet sleeve (1)
The sealing device of liquid and make gaseous coolant hydrojet uniformly equal liquid device.
2. a kind of motor rear end cover structure as described in claim 1 seals equal liquid device, it is characterised in that: the sealing device
Sealing means using hot jacket seal, sealing device includes spaced multiple sealing rings (12), state of cooling lower seal
(12) outer diameter is greater than oil resistance seal inner diameter.
3. a kind of motor rear end cover structure as claimed in claim 2 seals equal liquid device, it is characterised in that: the sealing device
It is arranged in hydrojet sleeve (1) lower part, sealing device further includes V-groove (11).
4. a kind of motor rear end cover structure as claimed in claim 2 seals equal liquid device, it is characterised in that: the sealing ring
(12) it is set as three seals circle, is upper seal, middle sealing ring and lower seal.
5. a kind of motor rear end cover structure as claimed in claim 3 seals equal liquid device, it is characterised in that: the V-groove
(11) it is arranged in the middle part of upper seal and lower seal medium position, V-groove (11) depth is 0.02mm, 60 ° of apex angle.
6. a kind of motor rear end cover structure as described in claim 1 seals equal liquid device, it is characterised in that: the equal liquid device
Including level-one part flow arrangement (2) and second level part flow arrangement (3), level-one part flow arrangement (2) is arranged in lower seal and middle sealing ring
Between, lower seal covers on the cyclic annular side of level-one part flow arrangement (2), ring of the middle sealing snare in second level part flow arrangement (3)
On shape side, second level part flow arrangement (3) is arranged between middle sealing ring and upper seal.
7. a kind of motor rear end cover structure as claimed in claim 6 seals equal liquid device, it is characterised in that: a level shunt
The cyclic annular side of device (2) is equipped with side butt hole as refrigerant passage, and level-one part flow arrangement (2) further includes a fraction stomata
(21), a fraction stomata (21) is arranged on the cyclic annular side of second level part flow arrangement (3).
8. a kind of motor rear end cover structure as claimed in claim 7 seals equal liquid device, it is characterised in that: the fraction gas
Hole (21) is the through-hole for being connected to level-one part flow arrangement (2) and second level part flow arrangement (3), is set as 2, symmetrical in 180 °.
9. a kind of motor rear end cover structure as claimed in claim 6 seals equal liquid device, it is characterised in that: two level shunt
Device (3) includes hydrojet baffle (31) and hydrojet channel (32), and hydrojet baffle (31) separates second level part flow arrangement (3) at two
The region of not intercommunication.
10. a kind of motor rear end cover structure as claimed in claim 9 seals equal liquid device, it is characterised in that: the hydrojet gear
Plate (31) is set as 2, and symmetrical in 180 °, the distance of 2 fraction stomatas (21) of hydrojet baffle (31) distance is identical.
11. a kind of motor rear end cover structure as claimed in claim 9 seals equal liquid device, it is characterised in that: the hydrojet is logical
Road (32), which is located on second level part flow arrangement (3), leads to hydrojet sleeve (1) inside.
12. a kind of motor rear end cover structure as described in claim 1 seals equal liquid device, it is characterised in that: further include hydrojet
Device, the liquid-jet device include the angle nozzle (4) for being connected to hydrojet sleeve (1) top, and angle nozzle (4) is equipped with will be cold
Cooling diffusivity mouth spray (42) is carried out in matchmaker's hydrojet to motor shaft to motor shaft.
13. a kind of motor rear end cover structure as claimed in claim 12 seals equal liquid device, it is characterised in that: the diffusivity
Mouth spray (42) connects hydrojet sleeve (1) internal hydrojet channel (32), and the quantity of diffusivity mouth spray (42) is 6.
14. a kind of motor rear end cover structure as claimed in claim 12 seals equal liquid device, it is characterised in that: the angle spray
The opening of mouth (4) is set as the slope gradually increased to opening internal diameter mouthful (41).
15. a kind of centrifugal compressor, it is characterised in that: including impeller, rotary shaft, main casing, electric machine assembly and claim
Any motor rear end cover structure of 1-14 seals equal liquid device, and the motor rear end cover structure seals equal liquid device setting and exists
On electric machine assembly.
16. a kind of centrifugal compressor as claimed in claim 15, it is characterised in that: the motor rear end cover structure sealing is equal
When liquid device is mounted on electric machine assembly, refrigerant enters rear end cap labyrinth seal by motor cooling tube, enters one by labyrinth seal
The side butt hole of level shunt device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272689.8A CN109286265B (en) | 2018-10-25 | 2018-10-25 | Motor rear end cover structure sealing liquid homogenizing device and centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272689.8A CN109286265B (en) | 2018-10-25 | 2018-10-25 | Motor rear end cover structure sealing liquid homogenizing device and centrifugal compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109286265A true CN109286265A (en) | 2019-01-29 |
| CN109286265B CN109286265B (en) | 2024-08-06 |
Family
ID=65174415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811272689.8A Active CN109286265B (en) | 2018-10-25 | 2018-10-25 | Motor rear end cover structure sealing liquid homogenizing device and centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109286265B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2445502Y (en) * | 2000-09-30 | 2001-08-29 | 重庆合众电气工业有限公司 | Cold-producing medium cooling three-phase asynchronous motor for centrifugal refrigerator |
| KR20110118916A (en) * | 2010-04-26 | 2011-11-02 | 엘지전자 주식회사 | Two stage compressor easiness reduce of pressure provide two stage impeller |
| CN202280621U (en) * | 2011-10-12 | 2012-06-20 | 广东美芝制冷设备有限公司 | Rotary compressor used for liquid injecting cooling |
| CN102777385A (en) * | 2012-08-06 | 2012-11-14 | 大连三洋压缩机有限公司 | Automatic spraying vortex compressor |
| CN103850946A (en) * | 2012-11-29 | 2014-06-11 | 开利泵业(集团)有限公司 | Water cooling pump with coupler structure |
| CN209375307U (en) * | 2018-10-25 | 2019-09-10 | 格力电器（合肥）有限公司 | Motor rear end cap structure seals liquid device and centrifugal compressor |
-
2018
- 2018-10-25 CN CN201811272689.8A patent/CN109286265B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2445502Y (en) * | 2000-09-30 | 2001-08-29 | 重庆合众电气工业有限公司 | Cold-producing medium cooling three-phase asynchronous motor for centrifugal refrigerator |
| KR20110118916A (en) * | 2010-04-26 | 2011-11-02 | 엘지전자 주식회사 | Two stage compressor easiness reduce of pressure provide two stage impeller |
| CN202280621U (en) * | 2011-10-12 | 2012-06-20 | 广东美芝制冷设备有限公司 | Rotary compressor used for liquid injecting cooling |
| CN102777385A (en) * | 2012-08-06 | 2012-11-14 | 大连三洋压缩机有限公司 | Automatic spraying vortex compressor |
| CN103850946A (en) * | 2012-11-29 | 2014-06-11 | 开利泵业(集团)有限公司 | Water cooling pump with coupler structure |
| CN209375307U (en) * | 2018-10-25 | 2019-09-10 | 格力电器（合肥）有限公司 | Motor rear end cap structure seals liquid device and centrifugal compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109286265B (en) | 2024-08-06 |
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