CN202216445U - Refrigeration device - Google Patents
Refrigeration device Download PDFInfo
- Publication number
- CN202216445U CN202216445U CN2011203090779U CN201120309077U CN202216445U CN 202216445 U CN202216445 U CN 202216445U CN 2011203090779 U CN2011203090779 U CN 2011203090779U CN 201120309077 U CN201120309077 U CN 201120309077U CN 202216445 U CN202216445 U CN 202216445U
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- compressor
- oil
- refrigerating plant
- pipe
- return pipe
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Abstract
The utility model relates to a refrigeration device which comprises a compressor, an outdoor heat exchanger, an expansion valve and an indoor heat exchanger that are sequentially connected by pipe fittings, as well as a cooling device and an oil-gas separator, wherein an exhaust hole of a compression cavity of the compressor is communicated with an inlet of the oil-gas separator by a receiving pipe; a gas outlet of the oil-gas separator is communicated with one end of the cooling device; an oil outlet of the oil-gas separator is communicated with the interior of a shell of the compressor by an oil return pipe; an opening at the other end of the cooling device is arranged under a motor of the compressor; and an exhaust pipe is arranged on the shell of the compressor arranged above the motor. The refrigeration device also comprises a liquid storage device, and the compressor, the outdoor heat exchanger, the expansion valve, the indoor heat exchanger and the liquid storage device are sequentially connected by the pipe fittings. One end of the oil return pipe is communicated with the oil outlet of the oil-gas separator, and the other end of the oil return pipe is communicated with the liquid storage device. The refrigeration device has the advantages of being simple and reasonable in structure, flexible in operation, low in self-temperature of the compressor and wide in application scope.
Description
Technical field
The utility model relates to a kind of refrigerating plant, particularly a kind of refrigerating plant that adopts the R32 cold-producing medium.
Background technology
The R32 cold-producing medium has higher COP and lower GWP value as a kind of environmental protection refrigerant of alternative HCFC working medium, is a kind of more satisfactory transition alternative refrigerant.
Refrigerating plant is in the past seen shown in the accompanying drawing 1 for connect the kind of refrigeration cycle of compressor 1, outdoor heat converter 6, expansion valve 7 and indoor heat converter 8 in order through pipe arrangement.In this kind of refrigeration cycle, adopt R22 or R410A as cold-producing medium.When adopting R32, because the rerum natura of R32, cause the temperature of the discharge gas after the compressor compresses under the same terms can raise 10～20 ℃ as cold-producing medium.So if discharge the high and good motor of cooling compressor of the temperature of gas, in hot environment, its reliability may descend motor for a long time so.
In addition, as the compressor that refrigerating plant is used, adopted the method for in closed container, enclosing lubricating oil.When compressor operation,, when preventing to wear and tear, carry out compressed action to the motion parts supplying lubricating oil of compressor.If the internal temperature of compressor is too high and can not effectively cool off, so, the temperature of lubricating oil also will rise.Consequently, the viscosity that exists lubricating oil reduces, insufficient lubrication takes place, cause the problem of the such reliability aspect of inordinate wear.And then, exist the problem of compressor operation ability drop.
The utility model content
The purpose of the utility model aims to provide a kind of simple and reasonable, flexible operation, compressor self temperature refrigerating plant low, applied widely, to overcome weak point of the prior art.
A kind of refrigerating plant by this purpose design; Comprise the compressor, outdoor heat converter, expansion valve and the indoor heat converter that connect successively through pipe arrangement; Its architectural feature is also to comprise cooling device and gs-oil separator; The exhaust outlet of the compression chamber of compressor communicates with the import of gs-oil separator through taking over, and the gas vent of gs-oil separator communicates with an end of cooling device, and the oil export of gs-oil separator communicates with the enclosure interior of compressor through oil return pipe; The other end of cooling device is opened on the below of the motor of compressor, and the housing of the compressor above the motor is provided with blast pipe.
Said refrigerating plant also comprises reservoir, and compressor, outdoor heat converter, expansion valve, indoor heat converter and reservoir are connected through pipe arrangement successively.
One end of said oil return pipe communicates with the oil export of gs-oil separator, and the other end of oil return pipe communicates with reservoir.
Be serially connected with capillary in the said oil return pipe.
Be filled with the R32 cold-producing medium in the said refrigerating plant.
The utility model is drawn out in the cooling device through the exhaust with the HTHP of the compression chamber of compressor; Through obtaining the exhaust of cryogenic high pressure after the cooling; Again the exhaust of this cryogenic high pressure is drawn back in the compressor; The exhaust of cryogenic high pressure enters into kind of refrigeration cycle after the motor of compressor is lowered the temperature again.Because the temperature of compressor self and motor has obtained effective reduction, so reducing, the viscosity of lubricating oil obtained effective control, compressor movement reliability is ensured greatly, has improved refrigeration simultaneously.
The utlity model has simple and reasonable, flexible operation, low, the advantage of wide range of application of compressor self temperature.
Description of drawings
Fig. 1 is the structural representation of refrigerating plant in the past.
Fig. 2 is the utility model first example structure sketch map.
Fig. 3 is the utility model second example structure sketch map.
Fig. 4 is the pressure-enthalpy chart of the utility model.
Among the figure: 1 is compressor, and 2 is gs-oil separator, and 3 is oil return pipe, and 4 is cooling device, and 5 is blast pipe, and 6 is outdoor heat converter, and 7 is expansion valve, and 8 is indoor heat converter, and 9 is reservoir, and 10 is capillary, and 11 for taking over.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
First embodiment
Referring to Fig. 2; This refrigerating plant; Comprise the compressor 1, outdoor heat converter 6, expansion valve 7 and the indoor heat converter 8 that connect successively through pipe arrangement, refrigerating plant also comprises cooling device 4 and gs-oil separator 2, and the exhaust outlet of the compression chamber of compressor 1 communicates with the import of gs-oil separator 2 through taking over 11; The gas vent of gs-oil separator 2 communicates with an end of cooling device 4; The oil export of gs-oil separator 2 communicates through the enclosure interior of oil return pipe 3 with compressor 1, and the other end of cooling device 4 is opened on the below of the motor of compressor 1, and the housing of the compressor 1 above the motor is provided with blast pipe 5.Be filled with the R32 cold-producing medium in the refrigerating plant.
Press in the housing of described compressor and be high back pressure.This compressor can be rotary compressor.
Refrigerating plant also comprises reservoir 9, and compressor 1, outdoor heat converter 6, expansion valve 7, indoor heat converter 8 and reservoir 9 are connected through pipe arrangement successively.
During work, the high temperature and high pressure gaseous refrigerant after the compressor compresses directly is discharged in the outer gs-oil separator 2 of compressor.High temperature and high pressure gaseous refrigerant and lubricating oil are accomplished Oil-gas Separation in gs-oil separator 2.High temperature and high pressure gaseous refrigerant through after the Oil-gas Separation directly gets into cooling device 4.Return the oil pocket of compressor through the lubricating oil after the Oil-gas Separation.
Cold-producing medium through cooled cryogenic high pressure returns in the housing of compressor again; The blast pipe 5 that the cold-producing medium of this cryogenic high pressure flows through behind the motor from the housing is discharged to outdoor heat converter 6; After expansion valve 7 and indoor heat converter 8 return compressor 1 at last, accomplish kind of refrigeration cycle.
After having adopted above-mentioned technical scheme, under the situation of using the R32 cryogen, also can reduce compressor temperature, can guarantee the hear resistance and the mar proof of compressor, improve compressor movement reliability.
Referring to Fig. 4, ABCDEA is the pressure-enthalpy chart of refrigerating plant in the past, and wherein, the E point is a cold-producing medium state point after compression, the flow through process of motor of EA cold-producing medium, and A is that cold-producing medium is flowed through and arrived the state point of discharge pipe 5 behind the motor of compressor.AB is the process of cold-producing medium at outdoor heat converter, and BC is the process of cold-producing medium in expansion valve, and CD is the process of cold-producing medium in indoor heat converter, and DE is the compression process of cold-producing medium through compressor.
EHGBCDE is the pressure-enthalpy chart of the utility model; Wherein, E is a cold-producing medium state point after compression, and EH is the cooling procedure of cold-producing medium in cooling device 4; HG is that cooled cold-producing medium returns the flow through process of motor of compressor, and the G point is the state point of the discharge pipe of compressor.GB is the process of cold-producing medium in outdoor heat converter.
Can learn that by top contrast compression efficiency of the utility model and compression effectiveness are well more a lot of than refrigerating plant in the past.
Second embodiment
Referring to Fig. 3-Fig. 4, in the present embodiment, an end of oil return pipe 3 communicates with the oil export of gs-oil separator 2, and the other end of oil return pipe 3 communicates with reservoir 9.Be serially connected with capillary 10 in the oil return pipe 3.
Lubricating oil to compressor liquid storage device 9, returns in the compressor after capillary 10 step-downs at last.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (5)
1. refrigerating plant; Comprise the compressor (1), outdoor heat converter (6), expansion valve (7) and the indoor heat converter (8) that connect successively through pipe arrangement; It is characterized in that also comprising cooling device (4) and gs-oil separator (2); The exhaust outlet of the compression chamber of compressor (1) communicates with the import of gs-oil separator (2) through taking over (11), and the gas vent of gs-oil separator (2) communicates with an end of cooling device (4), and the oil export of gs-oil separator (2) communicates through the enclosure interior of oil return pipe (3) with compressor (1); The other end of cooling device (4) is opened on the below of the motor of compressor (1), and the housing of the compressor above the motor (1) is provided with blast pipe (5).
2. refrigerating plant according to claim 1 is characterized in that said refrigerating plant also comprises reservoir (9), and compressor (1), outdoor heat converter (6), expansion valve (7), indoor heat converter (8) and reservoir (9) are connected through pipe arrangement successively.
3. refrigerating plant according to claim 2 is characterized in that an end of said oil return pipe (3) communicates with the oil export of gs-oil separator (2), and the other end of oil return pipe (3) communicates with reservoir (9).
4. refrigerating plant according to claim 3 is characterized in that being serially connected with in the said oil return pipe (3) capillary (10).
5. according to the arbitrary described refrigerating plant of claim 1 to 4, it is characterized in that being filled with in the said refrigerating plant R32 cold-producing medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203090779U CN202216445U (en) | 2011-08-23 | 2011-08-23 | Refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203090779U CN202216445U (en) | 2011-08-23 | 2011-08-23 | Refrigeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216445U true CN202216445U (en) | 2012-05-09 |
Family
ID=46015696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203090779U Expired - Fee Related CN202216445U (en) | 2011-08-23 | 2011-08-23 | Refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457032A (en) * | 2014-12-17 | 2015-03-25 | 广东美芝制冷设备有限公司 | Single-cold type refrigeration device and cold-warm type refrigeration device |
| CN110440402A (en) * | 2019-07-02 | 2019-11-12 | 青岛海尔空调电子有限公司 | Air conditioner and its method for controlling oil return |
-
2011
- 2011-08-23 CN CN2011203090779U patent/CN202216445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457032A (en) * | 2014-12-17 | 2015-03-25 | 广东美芝制冷设备有限公司 | Single-cold type refrigeration device and cold-warm type refrigeration device |
| CN110440402A (en) * | 2019-07-02 | 2019-11-12 | 青岛海尔空调电子有限公司 | Air conditioner and its method for controlling oil return |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |