CN1637351A - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN1637351A CN1637351A CNA2004100077442A CN200410007744A CN1637351A CN 1637351 A CN1637351 A CN 1637351A CN A2004100077442 A CNA2004100077442 A CN A2004100077442A CN 200410007744 A CN200410007744 A CN 200410007744A CN 1637351 A CN1637351 A CN 1637351A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- compressor
- heat exchanger
- air
- liquid
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B2400/23—Separators
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/02—Increasing the heating capacity of a reversible cycle during cold outdoor conditions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
An air conditioning system for heating and cooling air. The air conditioning system, which is provided with a compressor for compressing a refrigerant, an outdoor heat exchanger for heat-exchanging the refrigerant with outdoor air, an indoor heat exchanger for heat-exchanging the refrigerant with indoor air, a four-way valve for converting the direction of a refrigerant flow, a refrigerant expansion device installed in a refrigerant pipe connecting the outdoor heat exchanger and the indoor heat exchanger, and a vapour-liquid separator installed in a refrigerant pipe connecting the refrigerant expansion device and the indoor heat exchanger, includes a liquid refrigerant supply pipe connecting the vapour-liquid separator and an inlet of the compressor for supplying the refrigerant in a liquid state within the vapour-liquid separator to the inlet of the compressor, and a liquid refrigerant supply valve for controlling the supply of the refrigerant in the liquid state through the liquid refrigerant supply pipe. The air conditioning system has an improved capacity and reduces a compression ratio and a discharge temperature of the compressor in a heating mode under the condition that an outdoor temperature is extremely low, thus increasing reliability of the compressor.
Description
Technical field
The present invention relates to heat or cool off the air-conditioning system that air is used, particularly, heat with such being used to or to cool off the air-conditioning system of air relevant: under the lower situation of outdoor temperature, in heating mode, has improved abilities (capacity), and reduce the compression ratio and the discharge temperature of compressor, thereby increased the reliability of compressor.
Background technology
Usually, the air-conditioning system that operates in alternatively under heating or the refrigerating mode comprises compressor, outdoor heat exchanger, refrigerant expansion device, indoor heat exchanger and cross valve.Be in refrigerating mode following time in air-conditioning system, the cold-producing medium of discharging from compressor is provided for outdoor heat exchanger, and the cold-producing medium route is changed by cross valve, thereby will be through the inlet of the cold-producing medium introducing compressor of indoor heat exchanger.Correspondingly, the cold-producing medium that is in high temperature, high pressure conditions by the compressor compression is introduced into outdoor heat exchanger, so that make condensation of refrigerant become liquid, by refrigerant expansion device, cold-producing medium expand into low-pressure state like this through condensed refrigerant.Be in low-pressure state and the cold-producing medium by refrigerant expansion device is evaporated to gaseous state by indoor heat exchanger, flow to the inlet of compressor then.By heat release, by absorbing heat, cool off the interior space thus at the cold-producing medium at outdoor heat exchanger place herein, with the heat exchange of room air at the cold-producing medium at indoor heat exchanger place with outdoor air exchanged heat.
In the heating mode of air-conditioning system, the cold-producing medium of discharging from compressor is provided for indoor heat exchanger, and the cold-producing medium route is changed by cross valve, is introduced into the inlet of compressor like this by the cold-producing medium of outdoor heat exchanger.Correspondingly, the cold-producing medium that is in by compressor compresses under high temperature, the high pressure conditions is introduced into indoor heat exchanger, and cold-producing medium is condensed into liquid state like this, and by refrigerant expansion device, cold-producing medium is expanded to low-pressure state like this through condensed refrigerant.Be in the low-pressure state and the cold-producing medium by refrigerant expansion device is evaporated to gaseous state by outdoor heat exchanger, flow to the inlet of compressor then.Herein, by carrying out heat exchange and heat release with room air, the air at outdoor heat exchanger place heats the interior space thus by absorbing heat with outdoor air exchanged heat at the cold-producing medium at indoor heat exchanger place.
Be in the heating mode winter in outdoor temperature low especially (for example, being lower than-10 ℃), and the pressure of high side and downside has hindered air-conditioning system like this and brought into play its whole abilities owing to low outdoor temperature reduces in the air-conditioning system.That is, the pressure of locating at outdoor heat exchanger (downside) must be lowered, so that the evaporating temperature of the cold-producing medium at outdoor heat exchanger place is lower than outdoor temperature, thereby makes cold-producing medium and outdoor air carry out heat exchange.In the case, have lower density owing to introduce the cold-producing medium of suction port of compressor, therefore the discharge pressure with compressor is increased to difficulty of higher pressure ratio.In addition, the low discharge pressure of compressor is difficult to make the temperature of the cold-producing medium at indoor heat exchanger place to bring up to higher temperature, and the result has reduced the thermal effect that adds of air-conditioning system.
In heating mode, the pressure of downside (outdoor heat exchanger place) is low more, and the pressure of high side (indoor heat exchanger) is high more, and the heating efficiency of above-mentioned air-conditioning system is also just good more.Herein, the excessive pressure difference between downside and high side has a negative impact to the reliability of compressor.
In addition, in the heating mode under the extremely low condition of outdoor temperature, compressor has very high temperature so that have maximum ability, and the reliability to compressor has a negative impact like this.
Summary of the invention
Therefore, a target of the present invention provides the air-conditioning system that a kind of heating and cooling air is used, in its heating mode under the extremely low condition of outdoor temperature, have the heating efficiency of improvement and reduced the compression ratio and the discharge temperature of compressor, thereby improved the reliability of compressor.
According to the present invention, above-mentioned and other target can realize by the air-conditioning system that a kind of heating and cooling air is provided, it is provided with the compressor that compressed refrigerant is used, be used to the outdoor heat exchanger that makes cold-producing medium and outdoor air carry out heat exchange, be used for the indoor heat exchanger that makes cold-producing medium and room air carry out heat exchange, be used to change the cross valve of the direction of cold-producing medium stream, be installed in the refrigerant expansion device that makes in outdoor heat exchanger and the refrigerant pipe that indoor heat exchanger is connected, and the Vapor-Liquid Separator in making refrigerant expansion device and refrigerant pipe that indoor heat exchanger is connected, comprise: the liquid refrigerant supply pipe, it makes Vapor-Liquid Separator be connected with the inlet of compressor, and being used for provides inlet to compressor with the cold-producing medium under the liquid condition of Vapor-Liquid Separator; And the liquid refrigerant supply valve, be used to control the supply that is in the cold-producing medium under the liquid condition by the liquid refrigerant supply pipe.
Described air-conditioning system can also comprise the gaseous refrigerant supply pipe, and it makes Vapor-Liquid Separator be connected with compressor, is used for the gaseous refrigerant of Vapor-Liquid Separator is offered compressor; And the gaseous refrigerant supply valve, be used to control the supply that is in the cold-producing medium under the gaseous state by the gaseous refrigerant supply pipe.
In addition, air-conditioning system also comprises and is installed in second refrigerant expansion device that makes in Vapor-Liquid Separator and the refrigerant pipe that indoor heat exchanger is connected.
In addition, compressor can be the screw compressor that is used for the compressed liquid cold-producing medium.
Description of drawings
It is more obvious that above-mentioned target of the present invention and further feature and advantage will and become after having read the following detailed description with accompanying drawings, wherein:
Fig. 1 is the schematic diagram that circulates in a week that is used for the air-conditioning system of heating and cooling air according to the present invention.
The specific embodiment
Now, with preferred embodiments of the invention will now be described with reference to the accompanying drawings.
As shown in Figure 1, the air-conditioning system that is used for the heating and cooling air according to the present invention comprises: screw compressor 10 is used for the cold-producing medium under the liquid condition is compressed to high-temperature high-pressure state; Be used to make the cold-producing medium of circulation and the outdoor heat exchanger 11 that outdoor air carries out heat exchange; Be used to make the cold-producing medium of circulation and the indoor heat exchanger 12 that room air carries out heat exchange; Be used to change the cross valve 13 of cold-producing medium route, so that flow into outdoor heat exchanger 11 or indoor heat exchanger 12 alternatively by compressor 11 refrigerant compressed.Cross valve 13 comprises four connectivity ports that are connected to the outlet of compressor 10, are connected to outdoor heat exchanger 11, are connected to indoor heat exchanger 12 and are connected to the inlet of compressor 10 by refrigerant pipe 17 by refrigerant pipe 16 by refrigerant pipe 15 by refrigerant pipe 14 respectively.
Be installed in the middle part of the refrigerant pipe 18 that is used for junction chamber external heat exchanger 11 and indoor heat exchanger 12 by first refrigerant expansion device 19 of puffing cold-producing medium.Vapor-Liquid Separator 20 is installed between first refrigerant expansion device 19 and the outdoor heat exchanger 11, and second refrigerant expansion device 21 is installed between Vapor-Liquid Separator 20 and the indoor heat exchanger 12.Be used for making liquid refrigerant to the mobile minimized accumulator (accumulator) 22 of compressor 10 to be installed in the refrigerator pipes 17 that is connected to compressor 10 porch.
In the heating mode under the extremely low condition of outdoor temperature, air-conditioning system of the present invention is used for Vapor-Liquid Separator 20 isolated gaseous refrigerants are conducted to compressor 10, and further comprise: the gaseous refrigerant supply pipe 23 that is used to connect Vapor-Liquid Separator 20 and compressor 10, and gaseous refrigerant supply valve 24, it is installed in the gaseous refrigerant supply pipe 23, is used to control the supply by the cold-producing medium that is in gaseous state of gaseous refrigerant supply pipe 23.Thus, the gaseous refrigerant that is in relative higher density and elevated pressures is provided for the compressor 10 in the heating mode, thereby allows the compression ratio of compressor 10 to reduce, thereby and increases the reliability of compressor 10.In addition, the refrigerant amount towards indoor heat exchanger 12 circulations that is in the relatively high pressure state is increased, and has improved the thermal effect that adds of air-conditioning system like this.In addition, the refrigerant amount towards outdoor heat exchanger 11 circulations that is in liquid condition reduces, thereby has improved the heat-exchange capacity of outdoor heat exchanger 11.
In addition, outdoor temperature than the heating mode under the low situation of the outdoor temperature of above-mentioned situation in, the liquid refrigerant that air-conditioning system of the present invention is used for being separated by Vapor-Liquid Separator 20 provides to the inlet of compressor 10, and comprise: the liquid refrigerant supply pipe 25 that is used to connect Vapor-Liquid Separator 20 and compressor 10, and liquid refrigerant supply valve 26, it is installed in the liquid refrigerant supply pipe 25, is used to control the supply by the liquid refrigerant of liquid refrigerant supply pipe 25.Herein, the unlimited degree of liquid refrigerant supply valve 26 is controlled, and the liquid refrigerant that is conducted to compressor 10 inlets like this is injected in decompression state.Thus, being in the heating mode towards the refrigerant amount of indoor heat exchanger 12 circulations increases, thereby has increased the reliability of compressor 10 and improved the thermal effect that adds of air-conditioning system.In addition, the liquid refrigerant that offers compressor 10 inlets evaporates in compressor 10, thereby the extreme that has prevented the temperature of compressor 10 increases.
After this, the refrigerating mode and the heating mode operation of air-conditioning system of the present invention will be described in detail.In Fig. 1, the arrow shown in the solid line is represented the cold-producing medium stream in the refrigerating mode, and the arrow shown in the chain-dotted line is represented the cold-producing medium stream in the heating mode.
In refrigerating mode, the cold-producing medium of discharging from compressor 10 is provided for outdoor heat exchanger 11, and the route of cross valve 13 is converted, and is introduced into the inlet of compressor 10 like this by the cold-producing medium of indoor heat exchanger 12.Herein, first refrigerant expansion device 19 is opened fully, and gaseous refrigerant supply valve 24 and liquid refrigerant supply valve 26 are closed.Correspondingly, cold-producing medium in the high-temperature high-pressure state that is compressed by compressor 10 is introduced in the outdoor heat exchanger 1, cold-producing medium is condensed into liquid state like this, and the cold-producing medium that is condensed by first refrigerant expansion device 19, is introduced into Vapor-Liquid Separator 20 then under situation about not reducing pressure.Liquid refrigerant by Vapor-Liquid Separator 20 passes through second refrigerant expansion device 21, and cold-producing medium is inflated low-temperature condition like this, and is introduced into indoor heat exchanger 12, and cold-producing medium flashes to gaseous state like this.Then, the cold-producing medium that is in gaseous state flows to the inlet of compressor 10 once more.Herein, the cold-producing medium that is in the condition of high temperature at outdoor heat exchanger 11 places is condensed by the heat exchange with outdoor air, and discharges heat.The cold-producing medium in indoor heat exchanger 12 that is in low-temperature condition is by evaporating with the heat exchange of room air, and absorbs heat.Thus, realized the refrigerating mode of air-conditioning system of the present invention.
In heating mode, the cold-producing medium of discharging from compressor 10 is provided for indoor heat exchanger 12, and the route of cross valve 13 is changed, and is introduced into the inlet of compressor 10 like this through the cold-producing medium of outdoor heat exchanger 11.And gaseous refrigerant supply valve 24 and liquid refrigerant supply valve 26 are closed in heating mode, and gaseous refrigerant supply valve 24 is opened to the degree of appointment when outdoor temperature extremely low (for example, being lower than-10 ℃).
Correspondingly, high-temperature high-pressure refrigerant by compressor 10 compressions is introduced into indoor heat exchanger 12, and condensation of refrigerant becomes liquid like this, passes through second refrigerant expansion device 21 through condensed refrigerant, thereby make cold-producing medium be depressurized to middle pressure condition, be introduced into Vapor-Liquid Separator 20 then.Separate the cold-producing medium that is in the liquid state by Vapor-Liquid Separator 20 and pass through first refrigerant expansion device 19, cold-producing medium step-down and expansion like this, and be introduced into outdoor heat exchanger 11, thus cold-producing medium is evaporated to gaseous state.Then, gaseous refrigerant flows to the inlet of compressor 10 once more.Herein, the cold-producing medium in the condition of high temperature at indoor heat exchanger 12 places is condensed by the heat exchange with room air, and heat is discharged into the interior space.The cold-producing medium of the low-temperature condition at outdoor heat exchanger 11 places is evaporated by the heat exchange with outdoor air, and absorbs heat.
In addition, cold-producing medium in the middle pressure condition offers compressor 10 from Vapor-Liquid Separator 20, cold-producing medium and the cold-producing medium that is in compressor 10 porch are compressed by compressor 10 and together towards indoor heat exchanger 12 circulations, thereby cause the internal circulating load of the cold-producing medium in the high pressure conditions in the indoor heat exchanger 12 more than the internal circulating load that is in the cold-producing medium in the low-pressure state in the outdoor heat exchanger 11.Correspondingly, air-conditioning system of the present invention has reduced the suction pressure and the difference between the discharge pressure (compression ratio) of compressor 10, thereby has increased the reliability of compressor 10.In addition, towards the refrigerant amount increase of indoor heat exchanger 12 circulations, thereby the high pressure in the permission indoor heat exchanger 12 is maintained and has increased the thermal effect that adds of air-conditioning system.Herein, only be in liquid cold-producing medium through first refrigerant expansion device 19 by what Vapor-Liquid Separator 20 separated, thereby cold-producing medium expanded, thereby be easy to enlarge and increase the heat exchanger effectiveness of outdoor heat exchanger 11 by step-down.And the ability that is in the outdoor heat exchanger 11 in the heating mode is identical with the ability of outdoor heat exchanger 11 under being in refrigerating mode, and the refrigerant amount of circulation is less than the refrigerant amount that is circulated in the outdoor heat exchanger 11 under the refrigerating mode in the outdoor heat exchanger 11 under heating mode.Correspondingly, because air-conditioning system of the present invention has the effect that the ability of outdoor heat exchanger 11 enlarges, therefore compare with traditional air-conditioning system, air-conditioning system of the present invention has been improved the heat exchanger effectiveness of outdoor heat exchanger 11 significantly, thereby has improved the operating efficiency in the heating mode.
(for example be lower than above-mentioned situation in outdoor temperature, be lower than-15 ℃) under heating mode in, the opening of the gaseous refrigerant supply valve 24 of liquid refrigerant supply valve 26 and above-mentioned explanation is opened to lesser extent together, and a part that flows to the liquid cold-producing medium of being in of first refrigerant expansion device 19 from Vapor-Liquid Separator 20 is provided for the inlet of compressor 10 like this.Herein, the refrigerant amount that circulates towards indoor heat exchanger 12 increases, and the refrigerant amount that circulates towards outdoor heat exchanger 11 reduces, thereby has improved the thermal effect that adds of air-conditioning system.Herein, the liquid refrigerant that offers compressor 10 inlets evaporates in compressor 10, thereby has prevented the excessive increase of the temperature of compressor 10.Even owing in the heating mode under the extremely low condition of outdoor temperature, when the ability of compressor 10 is maximized, also can prevent the excessive increase of the temperature of compressor 10 porch, therefore air-conditioning system of the present invention has the reliability and stability of improvement.Herein, because compressor 10 is screw compressors, it can compress the cold-producing medium that is in the liquid state, and the cold-producing medium in a small amount that therefore is in the liquid state flows into the operational issue that compressor also can not cause compressor 10.
From above-mentioned explanation, obviously find out, the invention provides the air-conditioning system that a kind of heating and cooling air is used, wherein be provided for compressor in the heating mode by the gaseous refrigerant that Vapor-Liquid Separator separated, reduce the compression ratio of compressor like this and increased the discharge pressure of compressor, thereby improved the reliability that adds thermal effect and increased compressor.
Because the refrigerant amount that circulates in heating mode under the high pressure conditions in the indoor heat exchanger increases, so indoor heat exchanger maintains higher pressure state, thereby increased the thermal effect that adds of air-conditioning system.In addition, because the refrigerant amount that circulates in heating mode in the outdoor heat exchanger reduces, so outdoor heat exchanger is reduced to low-pressure state, thereby even under the extremely low situation of outdoor temperature, also allows the heat exchanger effectiveness of outdoor heat exchanger significantly to increase.
Because the evaporation of the liquid refrigerant by offering the suction port of compressor in the heating mode is prevented the excessive increase of compressor temperature, therefore air-conditioning system of the present invention has the reliability and stability of improvement.Herein, the refrigerant amount that circulates towards indoor heat exchanger further increases, and the refrigerant amount that circulates towards outdoor heat exchanger further reduces, thereby has improved the thermal effect that adds of air-conditioning system of the present invention.
Although preferred embodiments of the present invention have been disclosed for illustrative for purposes of illustration, those of ordinary skill will be understood that under the situation that does not depart from scope and spirit of the present invention might carry out different modifications, interpolation and alternative to the present invention, and its scope is limited by claims.
Claims (4)
1, the air-conditioning system used of a kind of heating and cooling air, the outdoor heat exchanger that be provided with compressor that compressed refrigerant uses, is used for making cold-producing medium and outdoor air carry out heat exchange, be used for making cold-producing medium and room air carry out heat exchange indoor heat exchanger, be used for changing the direction of cold-producing medium stream cross valve, be installed in the refrigeration expansion gear that makes the refrigerant pipe that outdoor heat exchanger is connected with indoor heat exchanger, be installed in the Vapor-Liquid Separator that makes the refrigerant pipe that the refrigeration expansion gear is connected with indoor heat exchanger, comprising:
The liquid refrigerant supply pipe, it is connected the inlet of Vapor-Liquid Separator and compressor, is used for the liquid refrigerant of Vapor-Liquid Separator is offered the inlet of compressor; And
The liquid refrigerant supply valve is used to control the supply by the liquid refrigerant of liquid refrigerant supply pipe.
2. air-conditioning system according to claim 1 is characterized in that, also comprises:
The gaseous refrigerant supply pipe, it makes Vapor-Liquid Separator link to each other with compressor, is used for the gaseous refrigerant of Vapor-Liquid Separator is offered compressor; And
The gaseous refrigerant supply valve is used to control the supply by the gaseous refrigerant of gaseous refrigerant supply pipe.
3. air-conditioning system according to claim 1 is characterized in that, also comprises being installed in second refrigerant expansion device that makes in Vapor-Liquid Separator and the refrigerator pipes that indoor heat exchanger is connected.
4. air-conditioning system according to claim 1 is characterized in that, compressor is the screw compressor that is used for compressing the cold-producing medium that is in liquid state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2004685 | 2004-01-06 | ||
| KR1020040000685A KR20050072299A (en) | 2004-01-06 | 2004-01-06 | Cooling and heating air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1637351A true CN1637351A (en) | 2005-07-13 |
Family
ID=34588120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100077442A Pending CN1637351A (en) | 2004-01-06 | 2004-03-05 | Air conditioning system |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1553365A3 (en) |
| KR (1) | KR20050072299A (en) |
| CN (1) | CN1637351A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007059709A1 (en) * | 2005-11-25 | 2007-05-31 | Gree Electric Appliances Inc. Of Zhuhai | A heat pump system for air conditioning under a low temperature and a using method thereof |
| CN100360875C (en) * | 2005-09-26 | 2008-01-09 | 浙江春晖智能控制股份有限公司 | Heat pump type central and household central air conditioning equipment refrigerating system |
| CN100439809C (en) * | 2005-12-16 | 2008-12-03 | 珠海格力电器股份有限公司 | Air supplementing system and air supplementing control method for compressor |
| CN102022853A (en) * | 2010-11-18 | 2011-04-20 | 海尔集团公司 | Air conditioner system |
| CN103375953A (en) * | 2012-04-27 | 2013-10-30 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioning system with same |
| CN105588361A (en) * | 2015-11-04 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Multi-split air-conditioning system |
| CN105588365A (en) * | 2015-06-30 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Intense heat type outdoor unit, heat pump system and control method of intense heat type outdoor unit and heat pump system |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100921211B1 (en) * | 2005-08-22 | 2009-10-13 | 에머슨 클리메이트 테크놀로지즈 인코퍼레이티드 | Compressor with vapor injection system |
| JP5965725B2 (en) * | 2012-05-24 | 2016-08-10 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner |
| EP2977691B1 (en) * | 2013-09-30 | 2021-09-08 | Guangdong Meizhi Compressor Co., Ltd. | Cooling system and heating system |
| CN103983038B (en) * | 2014-05-06 | 2016-06-22 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
| CN104214993A (en) * | 2014-09-30 | 2014-12-17 | 广东志高暖通设备股份有限公司 | Multi-line air conditioning system and oil balance device and control method thereof |
| CN106642852A (en) * | 2016-12-30 | 2017-05-10 | 中原工学院 | Three-level composite type fast defrosting system for refrigerating device |
| CN115164310B (en) * | 2022-08-24 | 2024-06-25 | 中国飞机强度研究所 | Full fresh air compensation system and method for aircraft engine test |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO890076D0 (en) * | 1989-01-09 | 1989-01-09 | Sinvent As | AIR CONDITIONING. |
| JPH0712411A (en) * | 1993-06-24 | 1995-01-17 | Hitachi Ltd | Refrigerating cycle and control method of ratio of composition of refrigerant for same |
| JP3080558B2 (en) * | 1995-02-03 | 2000-08-28 | 株式会社日立製作所 | Heat pump air conditioners for cold regions |
| JP2001263859A (en) * | 2000-03-17 | 2001-09-26 | Hitachi Ltd | Air conditioner |
-
2004
- 2004-01-06 KR KR1020040000685A patent/KR20050072299A/en not_active Application Discontinuation
- 2004-03-05 CN CNA2004100077442A patent/CN1637351A/en active Pending
- 2004-03-26 EP EP04251797A patent/EP1553365A3/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360875C (en) * | 2005-09-26 | 2008-01-09 | 浙江春晖智能控制股份有限公司 | Heat pump type central and household central air conditioning equipment refrigerating system |
| WO2007059709A1 (en) * | 2005-11-25 | 2007-05-31 | Gree Electric Appliances Inc. Of Zhuhai | A heat pump system for air conditioning under a low temperature and a using method thereof |
| CN100439809C (en) * | 2005-12-16 | 2008-12-03 | 珠海格力电器股份有限公司 | Air supplementing system and air supplementing control method for compressor |
| CN102022853A (en) * | 2010-11-18 | 2011-04-20 | 海尔集团公司 | Air conditioner system |
| CN103375953A (en) * | 2012-04-27 | 2013-10-30 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioning system with same |
| CN103375953B (en) * | 2012-04-27 | 2016-02-10 | 珠海格力电器股份有限公司 | Gas-liquid separator and air conditioning system with same |
| CN105588365A (en) * | 2015-06-30 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Intense heat type outdoor unit, heat pump system and control method of intense heat type outdoor unit and heat pump system |
| CN105588365B (en) * | 2015-06-30 | 2018-11-30 | 青岛海信日立空调系统有限公司 | A kind of heat-flash type outdoor unit, heat pump system and its control method |
| CN105588361A (en) * | 2015-11-04 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Multi-split air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1553365A2 (en) | 2005-07-13 |
| EP1553365A3 (en) | 2012-06-20 |
| KR20050072299A (en) | 2005-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6698234B2 (en) | Method for increasing efficiency of a vapor compression system by evaporator heating | |
| CN110332635B (en) | Double-stage compression multi-air-supplementing refrigeration heat pump system, control method and air conditioner | |
| JP4457928B2 (en) | Refrigeration equipment | |
| US7802440B2 (en) | Compression system and air conditioning system | |
| EP2479517B1 (en) | Air conditioner | |
| CN101512246B (en) | Refrigeration device | |
| WO2008079129A1 (en) | Refrigerant system with economizer, intercooler and multi-stage compressor | |
| CN1637351A (en) | Air conditioning system | |
| KR101288681B1 (en) | Air conditioner | |
| US7908878B2 (en) | Refrigerating apparatus | |
| KR20060066840A (en) | Structure and method for controlling indoor unit of multi-air conditioner | |
| CN110411047B (en) | Refrigerating system | |
| KR20180093570A (en) | Air conditioner | |
| CN115143658B (en) | Double-working-condition water chilling unit and control method thereof | |
| CN109682105B (en) | Air Conditioning System | |
| CN111912131B (en) | Multistage cooling carbon dioxide refrigeration air conditioner and refrigeration method | |
| EP3578898B1 (en) | Outdoor unit for air conditioner | |
| GB2438794A (en) | Refrigeration plant for transcritical operation with an economiser | |
| KR100395026B1 (en) | An evaporative temperature compensation device and process of heat pump | |
| KR20050074133A (en) | A multiple air-conditioner and the control method for the same | |
| KR200240102Y1 (en) | An evaporative temperature compensation device of heat pump | |
| CN115727558A (en) | Low-temperature refrigerating system | |
| KR100813053B1 (en) | Air-conditioning system and Controlling Method for the same | |
| KR200362727Y1 (en) | Refrigerant cycle system | |
| CN112013566A (en) | Energy-integrated energy-saving multifunctional heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |