CN1616892A - Air-conditioner having multiple compressors - Google Patents
Air-conditioner having multiple compressors Download PDFInfo
- Publication number
- CN1616892A CN1616892A CNA2004100544863A CN200410054486A CN1616892A CN 1616892 A CN1616892 A CN 1616892A CN A2004100544863 A CNA2004100544863 A CN A2004100544863A CN 200410054486 A CN200410054486 A CN 200410054486A CN 1616892 A CN1616892 A CN 1616892A
- Authority
- CN
- China
- Prior art keywords
- compressor
- hydraulic accumulator
- air
- cold
- producing medium
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/001—Compression machines, plants or systems with reversible cycle not otherwise provided for with two or more accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
Abstract
An air-conditioner having multiple compressors includes: an indoor heat-exchanger disposed indoors and heat-exchanging indoor air; an outdoor heat-exchanger disposed outdoors and heat-exchanging a refrigerant with external air; four compressors for compressing the refrigerant to change the refrigerant to have a high temperature and high pressure; and three accumulators disposed at a suction side of the four compressors and separating the refrigerant into a gas and a liquid to supply a gaseous refrigerant to the compressors. Oil can be uniformly supplied to each compressor, thereby enhancing reliability of compressors, and since the three accumulators are small with low capacities, their installation space can be easily secured.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly relate to a kind of air-conditioner with four compressors and three hydraulic accumulators.
Background technology
Usually, heat pump type air conditioner can be used to cool off air and add hot-air.That is to say, comprise indoor heat converter and outdoor heat converter, heat pump type air conditioner can be used as air-cooling apparatus and air heating apparatus by the cold-producing medium reverse flow that makes kind of refrigeration cycle.
Fig. 1 illustrates the structure according to the kind of refrigeration cycle of the heat pump type air conditioner of conventional art.
The conventional heat pump type air-conditioner comprises and is installed in indoor and carries out the indoor heat converter 102 of air cooling or air heat, be installed in outdoor and and the outdoor air outdoor heat converter 104 that carries out heat exchange; Be used for along forwards to or backward directions switch the cross valve 106 of cold-producing medium stream; Be installed on the refrigerant pipe of outer heat-heat exchanger 104 of junction chamber and indoor heat converter 102 and change refrigerant gas make it to have low temperature and low pressure expansion valve 110, be used for refrigerant is compressed into the compressor 112 with high temperature and high pressure, 114,116 and 118, and by discharge pipe 120,122,124 and 126 are connected to compressor 112,114,116 and 118, cold-producing medium is divided into gas and liquid and gaseous refrigerant is provided to every compressor 112,114,116 and 118 hydraulic accumulator 130.
Compressor is first compressor 112, the second compressors, 114, the three compressors 116 and the 4th compressor 118, and check valve 140 is installed in the discharge side of each compressor 112,114,116 and 118 so that prevent back flow of refrigerant.
Having jumbo hydraulic accumulator 130 will be divided into gas and liquid and gaseous refrigerant will be dispensed into first compressor to the, four compressors 112,114,116 and 118 by the cold-producing medium that refrigerant pipe 142 sucks.
As shown in Figure 2, this hydraulic accumulator 130 comprises and is connected to cold-producing medium via its housing 150 that sucks refrigerant pipe 142 wherein and have seal cavity, feed to each compressor 112 from downside insertion housing 150 predetermined lengths of housing 150 and the gaseous refrigerant that will housing 150, gasify, 114,116 and 118 first to fourth discharge pipe 160,162,164 and 166, in housing 150, be installed in the cage 152 on top, and the discharge pipe 160 that is used for supporting to be inserted in housing 150,162,164 and 166 conduit saddle gripping member 154.
Be included in the sidepiece that is stored in housing 150 by the oil in the cold-producing medium of refrigerant pipe 142 introducings, and oily recovery holes 156 is respectively formed at a part place of first to the 4th discharge pipe 160,162,164 and 166.Therefore, be stored in the oil of housing 150 bottoms by means of being flowing in first to fourth discharge pipe 160,162, the pressure of the cold-producing medium in 164 and 166 is inhaled into oily recovery holes 156, and is transmitted back to each compressor 112,114,116 and 118, thus execution is to the lubricated operation of compressor.
But this conventional heat pump type air regulator has following point.
That is exactly, owing to be connected respectively to four compressors 112,114,116 and 118 first to fourth discharge pipe 160,162,164 and 166 are installed in the hydraulic accumulator 130, oil mass by each discharge pipe 160,162,164 and 166 suctions is different, therefore, can be damaged because of the oil shortage by the compressor of the less relatively oil of loopback.
In addition, because four compressors are connected to a hydraulic accumulator, therefore need the hydraulic accumulator of a relatively high capacity.So, be not easy to obtain to be used for the installing space of big hydraulic accumulator.
Summary of the invention
Therefore, one object of the present invention is to provide a kind of air-conditioner with multiple compressors, and it is oily to four compressor supplies equably wherein to provide three hydraulic accumulators to be used for, and therefore improves the reliability of compressor.
Another object of the present invention provides a kind of air-conditioner with multiple compressors, and it can easily obtain the installing space of the small-sized hydraulic accumulator of three low capacity.
In order to realize these and other advantage and according to purpose of the present invention, as here embody and as described in, a kind of air-conditioner with multiple compressors is provided, comprising: be installed in indoor heat converter indoor and the heat exchange room air; Be installed in outdoor heat converter outdoor and that make cold-producing medium and outdoor air carry out heat exchange; Be installed in and become expansion valve on the refrigerant pipe that connects indoor heat converter and outdoor heat converter and with cold-producing medium with low temperature and low pressure; Four are used for cold-producing medium is compressed into the compressor with high temperature and high pressure; And be arranged on the suction side of four compressors and cold-producing medium is divided into gas and liquid gaseous refrigerant is fed to the hydraulic accumulator of three on compressor
These compressors are the first, the second, third and fourth compressor.Every compressor can have the compressor with different capabilities under identical capacity or the employing different flow.
Described hydraulic accumulator comprises first hydraulic accumulator that is used to receive cold-producing medium and cold-producing medium is divided into gas and liquid; Be connected to first hydraulic accumulator and be connected to second hydraulic accumulator of first and second compressors by refrigerant pipe; And be connected to first hydraulic accumulator and be connected to the 3rd hydraulic accumulator of third and fourth compressor by refrigerant pipe.
Second hydraulic accumulator is connected to first compressor and is connected to second compressor by second pipe by first pipe, and its cold-producing medium that will be fed to first hydraulic accumulator is divided into gas and liquid, and gaseous refrigerant is fed to first and second compressors.
The 3rd hydraulic accumulator is connected to the 3rd compressor and is connected to the 4th compressor by the 4th pipe by the 3rd pipe, the cold-producing medium that is fed to first hydraulic accumulator is divided into gas and liquid, and gaseous refrigerant is fed to third and fourth compressor.
Above-mentioned and other purpose, feature, aspect and advantage of the present invention is by becoming more apparent below in conjunction with accompanying drawing to the detailed description that the present invention carried out.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail, wherein:
Fig. 1 illustrates the structure according to the kind of refrigeration cycle of the heat pump type air conditioner of conventional art;
Fig. 2 is the cross section view that illustrates according to the hydraulic accumulator of conventional art;
Fig. 3 illustrates the structure according to the kind of refrigeration cycle of heat pump type air conditioner of the present invention; And
Fig. 4 is the cross section view according to hydraulic accumulator of the present invention.
The specific embodiment
Now will be at length with reference to the preferred embodiments of the present invention, the example is illustrated in the accompanying drawings.
Air-conditioner with multiple compressors according to the present invention has various embodiments, now most preferred embodiment is described.
Fig. 3 illustrates the structure according to the kind of refrigeration cycle of heat pump type air conditioner of the present invention.
Air-conditioner of the present invention comprise be installed in indoor and and the room air indoor heat converter 2 that carries out heat exchange; Be installed in outdoor and and the outdoor air outdoor heat converter 4 and 6 that carries out heat exchange; Be used for forwards to or backward directions on switch the cross valve 8 of cold-producing medium stream; Thereby being used for compressed refrigerant makes it have the compressor 20,22,24 and 26 of high temperature and high pressure; And be used for and will be fed to compressor 20,22,24 and 26 cold-producing medium is divided into a plurality of hydraulic accumulators 30,32 and 35 of gas and liquid.
Chamber outdoor heat exchanger 4 and 6 is first outdoor heat converter 4 and second outdoor heat converter 6.
Expansion valve 10 be installed in junction chamber outer heat-exchanger 4 and 6 and the refrigerant pipe 12 and 14 of indoor heat converter 2 on so that cold-producing medium is become low temperature and low-pressure state.
Described compressor refers to first compressor 20, the second compressors, 22, the three compressors 24 and the 4th compressor 26.Compressor 20,22,24 can have identical capacity with 26.Perhaps, can adopt compressor with the different capabilities under some flows.
In order to prevent back flow of refrigerant, check valve 16 is installed in the discharge side of each compressor 20,22,24 and 26.
Hydraulic accumulator 30,32 and 34 comprises by refrigerant pipe 18 and is connected to cross valve 8 and will introduces first hydraulic accumulator 30 that cold-producing medium in the refrigerant pipe 18 is divided into gas and liquid; Be connected to first hydraulic accumulator 30 and be connected to second hydraulic accumulator 32 of first and second compressors 20 and 22 by refrigerant pipe 40; And be connected to first hydraulic accumulator 30 and be connected to the 3rd hydraulic accumulator 34 of third and fourth compressor 24 and 26 by refrigerant pipe 42.
Second hydraulic accumulator 32 is connected to first compressor 20 and 52 is connected to second compressor 22 by second pipe by first pipe 50, makes it the cold-producing medium that is conducted to first hydraulic accumulator 30 can be divided into gas and liquid and gaseous refrigerant is fed to first and second compressors 20 and 22.
The 3rd hydraulic accumulator 34 is connected to the 3rd compressor 24 and 56 is connected to the 4th compressor 26 by the 4th pipe by the 3rd pipe 54, makes it the cold-producing medium that is conducted to first hydraulic accumulator 30 can be divided into gas and liquid and gaseous refrigerant is fed to third and fourth compressor 24 and 26.
The first, the second has identical structure with the 3rd hydraulic accumulator and can be of different sizes according to the capacity of compressor.
In hydraulic accumulator 30,32 and 34, first hydraulic accumulator 30 has following structure.
As shown in Figure 4, first hydraulic accumulator 30 comprises by refrigerant pipe 18 and is connected to cross valve 8 and has the housing 60 that cold-producing medium sucks seal cavity wherein, insert housing 60 with predetermined length and the gaseous refrigerant that will gasify is fed to first discharge pipe 62 and second discharge pipe 64 of the second and the 3rd hydraulic accumulator 32 and 34 from the downside of housing 60 housing 60, in housing 60, be installed in the cage (screen) 66 on top, and support the discharge pipe 62 be installed in the housing 60 and 64 conduit saddle gripping member 68.
Be included in the bottom that the oil in the cold-producing medium that is drawn in the housing 60 is stored in housing 60, and oily recovery holes 70 and 72 is formed on the part place in the oil of being immersed in of first and second discharge pipes 62 and 64, makes the oil that is stored in housing 60 bottoms by oily recovery holes 70 and 72 suctions and be sent back to every compressor.
The oil that is stored in 60 li of housings has a suction force by means of the pressure of the cold-producing medium that flows through first and second discharge pipes 62 and 64.
The operation of the air-conditioner of structure is as follows as mentioned above according to the present invention.
When compressor 20,22,24 and 26 when being driven, and the low temperature and the low pressure refrigerant that have passed indoor heat converter 2 are introduced in first hydraulic accumulator 30 after the cross valve 8 of flowing through.
This refrigerant gasifies in first hydraulic accumulator 30 and is divided into liquids and gases, and is included in the bottom that oil in the refrigerant is stored in first hydraulic accumulator 30.
The gaseous refrigerant that gasifies in first hydraulic accumulator is supplied to second hydraulic accumulator 32 by first discharge pipe 62 and refrigerant pipe 40, and is provided required the 3rd hydraulic accumulator 34 by second discharge pipe 64 and refrigerant pipe 42.
At this moment, the oil that is stored in first hydraulic accumulator, 30 bottoms is by being formed on oily recovery holes 70 and 72 on first and second discharge pipes 62 and 64 and being sucked and being supplied to the second and the 3rd hydraulic accumulator 32 and 34 with the cold-producing medium of gasification.
The cold-producing medium that has been provided in second hydraulic accumulator 32 is divided into gas and liquid, and the gaseous refrigerant after the gasification is fed to first compressor 20 and is fed to second compressor 22 by second pipe 52 by first pipe 50 in second hydraulic accumulator.At this moment, the oil that is stored in second hydraulic accumulator 32 is sent back to first and second compressors 20 and 22 with gaseous refrigerant by first and second pipes 50 and 52, so that carry out the lubricated operation of compressor.
By this way, cold-producing medium and oil are supplied to only two compressors 20 and 22 from second hydraulic accumulator 32, thereby the oil mass that is fed to first and second compressors 20 and 22 can keep constant.
The cold-producing medium that is fed to hydraulic accumulator 34 is divided into gas and liquid, and the oil of gaseous refrigerant in being stored in the 3rd hydraulic accumulator 34 in the 3rd hydraulic accumulator 34 after the gasification is fed at the 3rd compressor 24 by the 3rd pipe 54, and also is fed to the 4th compressor 26 by the 4th pipe 56.
At this,, can keep constant so feed to the oil mass of third and fourth compressor 24 and 26 because oil only is supplied to two compressors 24 and 26 from hydraulic accumulator 34.
Wherein be fed to first to fourth compressor 20,22,24 and 26 cold-producing medium is compressed to become to have high temperature and high pressure, is fed to outdoor heat converter 4 and 6 and is used for carrying out heat exchange with extraneous air, becomes the process that has low temperature and low pressure and be supplied to indoor heat converter 2 then carried out repeatedly in by expansion valve 10.
Such just as described above, the air-conditioner with multiple compressors according to the present invention has following advantage.
Just, for example, because providing three hydraulic accumulators and four compressors and a hydraulic accumulator is connected to two compressors, so because the interference inhomogeneous or that produce when suction oil of the oil mass that feeds to every compressor that the aberrations in property of compressor causes can reduce relatively, therefore, the reliability of compressor is improved.
In addition, have low capacity owing to three hydraulic accumulators are little, their installing space obtains easily.
Because under the prerequisite that does not deviate from the present invention's spirit and substantive features, can embody the present invention with various ways, therefore should be appreciated that, the foregoing description is not limited to any details of above-mentioned explanation, unless otherwise mentioned, but should understand widely in the spirit and scope that appended claim limited, so all fall into the interior change of the generally acknowledged scope of claim and the equivalent of modification or this kind scope is all contained by claims.
Claims (14)
1. air-conditioner with multiple compressors comprises:
Be installed in indoor, as to be used for heat exchange room air indoor heat converter;
Be installed in outdoor, as to be used to make cold-producing medium and outdoor air heat exchange outdoor heat converter;
Be installed in the expansion valve on the refrigerant pipe that is connected between indoor heat converter and the outdoor heat converter;
Be used for compressed refrigerant so that cold-producing medium has four compressors of high temperature and high pressure; And
Be arranged on the suction path of four compressors, be used for cold-producing medium is divided into gas and liquid so that to three hydraulic accumulators of compressor supply gaseous refrigerant.
2. air-conditioner according to claim 1, wherein, described compressor is first compressor, second compressor, the 3rd compressor and the 4th compressor, and every compressor can have the compressor with different capabilities under identical capacity or the employing different flow.
3. air-conditioner according to claim 2, wherein, check valve is installed on each drain passageway of compressor and is used for preventing back flow of refrigerant.
4. air-conditioner according to claim 2, wherein, described hydraulic accumulator comprises:
First hydraulic accumulator that is used to receive cold-producing medium and cold-producing medium is divided into gas and liquid;
Be connected to first hydraulic accumulator and be connected to first compressor and second hydraulic accumulator of second compressor by refrigerant pipe; And
Be connected to first hydraulic accumulator and be connected to the 3rd compressor and the 3rd hydraulic accumulator of the 4th compressor by refrigerant pipe.
5. air-conditioner according to claim 4, wherein, described second hydraulic accumulator is connected to first compressor and is connected to second compressor by second pipe by first pipe, and the cold-producing medium that is used for being fed to first hydraulic accumulator is divided into gas and liquid so that to first compressor and second compressor supply gaseous refrigerant.
6. air-conditioner according to claim 4, wherein, the 3rd hydraulic accumulator is connected to the 3rd compressor and is connected to the 4th compressor by the 4th pipe by the 3rd pipe, and the cold-producing medium that is used for being fed to first hydraulic accumulator is divided into gas and liquid so that to the 3rd compressor and the 4th compressor supply gaseous refrigerant.
7. air-conditioner according to claim 4, wherein, hydraulic accumulator comprises:
One housing is connected to refrigerant pipe that is used for the suction refrigeration agent and the oil that is contained in cold-producing medium in the lower part of frame storage package; And
Be inserted into the housing and be in the housing to be discharged two discharge pipes of gaseous refrigerant from lower housing portion by the gasification back;
Wherein, oily SS is formed on the bottom of each discharge pipe that is inserted in the housing so that suction is stored in the oil in the housing.
8. heat pump type air conditioner with multiple compressors comprises:
Be installed in indoor, as to be used to carry out air cooling or air heat indoor heat converter;
Be installed in outdoor, be used to the outdoor heat converter that makes cold-producing medium and outdoor air carry out heat exchange;
Be installed in the expansion valve on the refrigerant pipe that is connected between indoor heat converter and the outdoor heat converter;
Be used for forwards to or backward directions switch the cross valve of cold-producing medium stream;
Be used for compressed refrigerant, make it to become four compressors with high temperature and high pressure; And
Be arranged on three hydraulic accumulators on each suction channels of four compressors, be used for cold-producing medium is divided into gas and liquid so that provide gaseous refrigerant to compressor.
9. air-conditioner according to claim 8, wherein, described compressor is first compressor, second compressor, the 3rd compressor and the 4th compressor, and every compressor can have the compressor with different capabilities under identical capacity or the employing different flow.
10. air-conditioner according to claim 9, wherein, check valve is installed on each drain passageway of compressor and is used for preventing back flow of refrigerant.
11. air-conditioner according to claim 9, wherein, described hydraulic accumulator comprises:
First hydraulic accumulator that is used to receive cold-producing medium and cold-producing medium is divided into gas and liquid;
Be connected to first hydraulic accumulator and be connected to first compressor and second hydraulic accumulator of second compressor by refrigerant pipe; And
Be connected to first hydraulic accumulator and be connected to the 3rd compressor and the 3rd hydraulic accumulator of the 4th compressor by refrigerant pipe.
12. air-conditioner according to claim 11, wherein, described second hydraulic accumulator is connected to first compressor and is connected to second compressor by second pipe by first pipe, and the cold-producing medium that is used for being fed to first hydraulic accumulator is divided into gas and liquid so that to first compressor and second compressor supply gaseous refrigerant.
13. air-conditioner according to claim 11, wherein, the 3rd hydraulic accumulator is connected to the 3rd compressor and is connected to the 4th compressor by the 4th pipe by the 3rd pipe, and the cold-producing medium that is used for being fed to first hydraulic accumulator is divided into gas and liquid so that to the 3rd compressor and the 4th compressor supply gaseous refrigerant.
14. air-conditioner according to claim 11, wherein, each hydraulic accumulator comprises:
One housing is connected to refrigerant pipe that is used for the suction refrigeration agent and the oil that is contained in cold-producing medium in the lower part of frame storage package; And
Be inserted into the housing, be used for being that housing is by two discharge pipes of gasification back discharge gaseous refrigerant from lower housing portion;
Wherein, oily SS is formed on the bottom of each discharge pipe that is inserted in the housing so that suction is stored in the oil in the housing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0080708A KR100511288B1 (en) | 2003-11-14 | 2003-11-14 | Out door unit of air conditioner with four compressors |
| KR80708/2003 | 2003-11-14 | ||
| KR80708/03 | 2003-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1616892A true CN1616892A (en) | 2005-05-18 |
| CN1302236C CN1302236C (en) | 2007-02-28 |
Family
ID=34567747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100544863A Expired - Fee Related CN1302236C (en) | 2003-11-14 | 2004-07-22 | Air-conditioner having multiple compressors |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20050103048A1 (en) |
| KR (1) | KR100511288B1 (en) |
| CN (1) | CN1302236C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556773B1 (en) * | 2003-11-05 | 2006-03-10 | 엘지전자 주식회사 | Oil return apparatus for accumulator of air conditioner and oil return method thereof |
| KR100688171B1 (en) * | 2004-12-29 | 2007-03-02 | 엘지전자 주식회사 | Multiple air conditioner and refrigerant withdrawing method |
| KR100697088B1 (en) * | 2005-06-09 | 2007-03-20 | 엘지전자 주식회사 | Air-Condition |
| KR100700545B1 (en) * | 2005-08-10 | 2007-03-28 | 엘지전자 주식회사 | Apparatus for controlling the driving of an air conditioner having plural compressors and method therefor |
| KR20070018635A (en) * | 2005-08-10 | 2007-02-14 | 엘지전자 주식회사 | Apparatus for controlling the driving of an air conditioner having plural compressors and method therefor |
| CN102232167B (en) * | 2008-10-01 | 2013-08-14 | 开利公司 | Liquid vapor separation in transcritical refrigerant cycle |
| WO2010113395A1 (en) * | 2009-03-31 | 2010-10-07 | 三菱電機株式会社 | Refrigeration device |
| EP2534427B1 (en) * | 2010-02-08 | 2017-10-18 | Johnson Controls Technology Company | Heat exchanger having stacked coil sections |
| US11384969B2 (en) * | 2020-02-27 | 2022-07-12 | Heatcraft Refrigeration Products Llc | Cooling system with oil return to oil reservoir |
| US11371756B2 (en) | 2020-02-27 | 2022-06-28 | Heatcraft Refrigeration Products Llc | Cooling system with oil return to accumulator |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69517457T2 (en) * | 1994-03-15 | 2001-02-15 | Mitsubishi Electric Corp | air conditioning |
| JPH085169A (en) * | 1994-06-21 | 1996-01-12 | Matsushita Refrig Co Ltd | Air conditioner |
| CN1188218A (en) * | 1996-10-28 | 1998-07-22 | 松下冷机株式会社 | Oil level equalizing system for plural compressors |
| JP3434993B2 (en) * | 1996-11-12 | 2003-08-11 | 株式会社日立製作所 | Air conditioner |
| SE9703375D0 (en) * | 1997-09-18 | 1997-09-18 | Astra Ab | A new combination |
| JP2000111230A (en) * | 1998-10-02 | 2000-04-18 | Toshiba Corp | Freezer-refrigerator |
| JP2001091068A (en) * | 1999-09-20 | 2001-04-06 | Fujitsu General Ltd | Air conditioner |
| KR100359822B1 (en) * | 2000-05-24 | 2002-11-07 | 엘지전자 주식회사 | An air-conditioner |
| US6601397B2 (en) * | 2001-03-16 | 2003-08-05 | Copeland Corporation | Digital scroll condensing unit controller |
| CN1392370A (en) * | 2002-06-27 | 2003-01-22 | 海尔集团公司 | Multiple compressor variable volume outdoor unit for one driven multiple air conditioner |
| KR20040050477A (en) * | 2002-12-10 | 2004-06-16 | 엘지전자 주식회사 | An air-condition system |
-
2003
- 2003-11-14 KR KR10-2003-0080708A patent/KR100511288B1/en active IP Right Grant
-
2004
- 2004-06-24 US US10/874,258 patent/US20050103048A1/en not_active Abandoned
- 2004-07-22 CN CNB2004100544863A patent/CN1302236C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100511288B1 (en) | 2005-08-31 |
| US20050103048A1 (en) | 2005-05-19 |
| CN1302236C (en) | 2007-02-28 |
| KR20050046444A (en) | 2005-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1303385C (en) | Oil separator and cooling-cycle apparatus using the same | |
| CN1187559C (en) | Freezer | |
| CN1302236C (en) | Air-conditioner having multiple compressors | |
| CN1302244C (en) | Pipe structure of outdoor unit in air conditioner | |
| CN100451498C (en) | Multi-type air conditioner and method to for controlling same | |
| CN1161573C (en) | Multi-stage compression refrigerating device | |
| KR101342649B1 (en) | air conditioner | |
| CN1786630A (en) | Refrigerating device | |
| CN1757991A (en) | Air-conditioner with a dual-refrigerant circuit | |
| CN1690599A (en) | Apparatus for switching air conditioner refrigerant pipes | |
| CN1737441A (en) | Apparatus for controlling operation of air conditioner | |
| CN1194197C (en) | Refrigeration circulation for air conditioner | |
| CN1793758A (en) | Air conditioner | |
| CN100351588C (en) | Air conditioning system | |
| KR101340532B1 (en) | Oil separator and air conditioner comprising the same | |
| CN1888747A (en) | Oil recovering structure for air conditioner | |
| EP1696189B1 (en) | Air-conditioner having multiple compressors | |
| CN1888743A (en) | Air conditioner | |
| CN1804513A (en) | Air conditioner | |
| CN211600909U (en) | Integrated double-system refrigerating device | |
| CN1967076A (en) | Vacuum error detection method and device for combined air conditioner | |
| KR101203848B1 (en) | A compressor oil retrieving apparatus of multi-type air conditioner | |
| CN1690553A (en) | Apparatus for switching air conditioner refrigerant pipes | |
| KR100710368B1 (en) | Multi-type air conditioner | |
| CN1898506A (en) | Heat pump having multi-stage heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20070228 Termination date: 20180722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |