CN101266085A - Refrigerating system and air conditioner possessing the refrigerating system - Google Patents
Refrigerating system and air conditioner possessing the refrigerating system Download PDFInfo
- Publication number
- CN101266085A CN101266085A CNA2007101391182A CN200710139118A CN101266085A CN 101266085 A CN101266085 A CN 101266085A CN A2007101391182 A CNA2007101391182 A CN A2007101391182A CN 200710139118 A CN200710139118 A CN 200710139118A CN 101266085 A CN101266085 A CN 101266085A
- Authority
- CN
- China
- Prior art keywords
- refrigerant pipe
- heat converter
- expansion valve
- compressor
- indoor heat
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
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- 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
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0401—Refrigeration circuit bypassing means for the compressor
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- 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
- F25B2400/072—Intercoolers therefor
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- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2501—Bypass valves
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- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention relates to a refrigeration system which can reduce the problem of efficiency drop maybe happened when heating is operated, and an air conditioning machinery provided with the refrigeration system. The air condition machinery comprises: a compressor used for compressing refrigerant; an outdoor heat exchanger used for processing heat exchange with outdoor air; an indoor heat exchanger used for processing heat exchange with indoor air; an intercooler used for making a part of the refrigerant exhausted from the indoor heat exchanger absorb heat from the rest refrigerant exhausted from the indoor heat exchanger after decompressing and expanding to flow into the compressor. Hereby, the refrigerant which is cooled via the intercooler to more effectively absorb heat condition from outdoor space is flowed into the outdoor heat exchanger so as to reduce the problem of efficiency drop of the refrigeration system maybe happened when heating is operated.
Description
Technical field
The present invention relates to a kind of air conditioner, the air conditioner that relates in particular to the refrigeration system of contingent decrease in efficiency problem in the time that heating operation can being reduced and have this refrigeration system.
Background technology
Usually, as disclosed content in the Korean Patent communique " 10-1995-01216 number ", the air conditioner with refrigeration system comprises the off-premises station that is located at the exterior space and is located at the indoor set of the interior space and the interior space is freezed or heated.
This existing air conditioner is as the device that the interior space is freezed or heated, in off-premises station, be provided for the compressor of compressed refrigerant, make cold-producing medium and outdoor air carry out the outdoor heat converter of heat exchange, in heating operation, make cold-producing medium before inflow outdoor heat exchanger, be depressurized the outdoor expansion valve of expansion, the indoor heat converter that makes cold-producing medium and room air carry out heat exchange is set in indoor set, in refrigerating operaton, make cold-producing medium before inflow indoor heat exchanger, be depressurized the indoor expansion valve of expansion, and make some in refrigerant flow direction outdoor heat converter that compressor discharges and the indoor heat converter and switch the cross valve of refrigerating operaton and heating operation in the discharge side setting of compressor, constitute thus and freeze and the refrigeration system of heating operation.
But the air conditioner with this existing refrigeration system is when being used to heat the interior space in the winter time, because be to absorb heat by outdoor heat converter from outdoor air in the low-down exterior space of temperature, so the efficient of refrigeration system can significantly reduce.
Summary of the invention
The present invention proposes in order to solve aforesaid problem, and its purpose is to provide a kind of refrigeration system of contingent decrease in efficiency problem and the air conditioner with this refrigeration system can reduce to carry out heating operation for space in the heating chamber time.
Refrigeration system provided by the present invention to achieve these goals comprises: the compressor that is used for compressed refrigerant; Be used for carrying out the outdoor heat converter of heat exchange with outdoor air; Be used for carrying out the indoor heat converter of heat exchange with room air; Intercooler makes the residual refrigerant absorption heat that part cold-producing medium that described indoor heat converter discharges discharges from described indoor heat converter when being used for heating operation and flow into described compressor puffing after.
And, the part cold-producing medium of when being arranged in heating operation in the described intercooler described indoor heat converter being discharged be directed to described compressor circuitous refrigerant pipe partial section be used to be connected the partial section that be connected refrigerant pipe of described outdoor heat converter with described indoor heat converter, make the partial section of described circuitous refrigerant pipe can carry out heat exchange mutually with the partial section that is connected refrigerant pipe, the entrance side that is arranged in the described circuitous refrigerant pipe partial section of described intercooler is provided with the bypass expansion valve, to be used for that the cold-producing medium by described circuitous refrigerant pipe is carried out puffing.
And described bypass expansion valve is made of the electric expansion valve that can regulate its aperture.
And the aperture of regulating described bypass expansion valve makes its entrance side and outlet side temperature difference with the described circuitous refrigerant pipe partial section that is located at described intercooler proportional.
And the refrigerant superheat degree that the aperture of regulating described bypass expansion valve is discharged itself and described compressor is proportional.
And refrigeration system provided by the present invention comprises: the compressor that is used for compressed refrigerant; Be used for carrying out the outdoor heat converter of heat exchange with outdoor air; Be used for carrying out the indoor heat converter of heat exchange with room air; Circuitous refrigerant pipe, the part cold-producing medium that is used for when heating operation described indoor heat converter being discharged is directed to described compressor; Be located at the bypass expansion valve of described circuitous refrigerant pipe, to be used for that the cold-producing medium by described circuitous refrigerant pipe is carried out puffing; Wherein, the described bypass expansion valve downstream partial section of described circuitous refrigerant pipe is arranged to and can carries out heat exchange with the refrigerant pipe that is connected that is connected described outdoor heat converter and described indoor heat converter.
And air conditioner provided by the present invention comprises: off-premises station, this off-premises station have the compressor that is used for compressed refrigerant and are used for carrying out with outdoor air the outdoor heat converter of heat exchange; Indoor set, this indoor set has the indoor heat converter that is used for carrying out with room air heat exchange; Intercooler, the residual refrigerant that the part cold-producing medium that described indoor heat converter is discharged is discharged from described indoor heat converter after puffing absorbs heat and flow into described compressor.
Description of drawings
Fig. 1 is for using the air conditioner skeleton diagram of refrigeration system provided by the present invention.
Main symbol description: 10 is off-premises station, and 11 is compressor, and 12 is outdoor heat converter, 13 is cross valve, and 14 is main expansion valve, and 20 is indoor set, 21 is indoor heat converter, and 30 is that intercooler (inter cooler), 31 is circuitous refrigerant pipe, and 32 are the bypass expansion valve.
The specific embodiment
Below, the preferred embodiment that present invention will be described in detail with reference to the accompanying.
As shown in Figure 1, the air conditioner of using refrigeration system provided by the present invention comprises the off-premises station 10 that is located at the exterior space and the indoor set 20 that is located at the interior space and the interior space is freezed or heated.
Off-premises station 10 comprises: the compressor 11 that is used for compressed refrigerant; Make cold-producing medium and outdoor air carry out the outdoor heat converter 12 of heat exchange; The cold-producing medium that compressor is discharged is directed to some in off-premises station 10 and the indoor set 20 and selects the cross valve 13 carrying out refrigeration or heat; In heating operation, make cold-producing medium before inflow outdoor heat exchanger 12, be depressurized the main expansion valve 14 of expansion; The outdoor ventilating fan 15 that makes outdoor air in off-premises station 10, circulate and make itself and outdoor heat converter 12 carry out heat exchange.Indoor set 20 comprises: make cold-producing medium and room air carry out the indoor heat converter 21 of heat exchange; The indoor exhaust fan 22 that makes room air in indoor set 20, circulate and make itself and indoor heat converter 21 carry out heat exchange.
Above-mentioned each inscape of air conditioner is by refrigerant pipe (P1, P2, P3, P4, P5) interconnect and constitute closed loop, refrigerant pipe (P1, P2, P3, P4, P5) comprise the discharging refrigerant pipe P1 that the cold-producing medium that compressor 11 is discharged is directed to cross valve 13, be used to guide the suction refrigerant pipe P2 that is drawn into the cold-producing medium of compressor 11 from cross valve 13, be used to connect the outdoor refrigerant pipe P3 of cross valve 13 and outdoor heat converter 12, be used to connect the indoor refrigerant pipe P4 of cross valve 13 and indoor heat converter 21, what be used for junction chamber outer heat-exchanger 12 and indoor heat converter 21 is connected refrigerant pipe P5.
And, the air conditioner of using refrigeration system provided by the present invention comprises intercooler 30, the part of refrigerant that this intercooler 30 makes indoor heat converter 21 discharge when heating operation absorbs heat and flows to compressor 11, the decrease in efficiency problem of contingent refrigeration system when reducing heating operation thus from the residual refrigerant that indoor heat converter 21 is discharged after puffing.
Arrange circuitous outdoor heat converter 12 of the part of refrigerant that indoor heat converter 21 is discharged and cross valve 13 in the intercooler 30 respectively and directly flow to the partial section and the partial section that is connected refrigerant pipe P5 of the circuitous refrigerant pipe 31 of compressor 11 so that the cold-producing medium by the refrigerant pipe 31 that makes a circulation with carry out heat exchange mutually by the cold-producing medium that is connected refrigerant pipe P5.The entrance side that is located at circuitous refrigerant pipe 31 partial sections of intercooler 30 has the bypass expansion valve 32 that the cold-producing medium by circuitous refrigerant pipe 31 is carried out puffing, make circuitous refrigerant pipe 31 partial sections that are positioned at bypass expansion valve 32 downstreams be connected refrigerant pipe P5 and carry out heat exchange.
Therefore, the part cold-producing medium that indoor heat converter 21 is discharged is evaporated by bypass expansion valve 32 puffings in intercooler 30, and with carry out heat exchange by being connected the cold-producing medium that refrigerant pipe P5 flows to outdoor heat converter 12.So, when the cold-producing medium by circuitous refrigerant pipe 31 when carrying out heat exchange mutually by the cold-producing medium that is connected refrigerant pipe P5, be relatively higher than the cold-producing medium heating of passing through to connect refrigerant pipe P5 of outdoor temperature by temperature by the cold-producing medium of circuitous refrigerant pipe 31, therefore with the gases at high pressure state flow to compressor 11, and be cooled by the cold-producing medium that connects refrigerant pipe P5, therefore absorbing the state flow of heat to outdoor heat converter 12 from the exterior space more effectively.Therefore, can reduce the decrease in efficiency problem of the refrigeration system that may when heating operation, take place.
At this moment, because outdoor temperature is lower than indoor temperature in the winter time, so compressor 11 flows into the high gaseous state cold-producing medium of relative pressure by sucking the low gaseous state cold-producing medium of refrigerant pipe P2 inflow relative pressure and pass through circuitous refrigerant pipe 31.Compressor 11 adopts scroll compressors (scrollcompressor) in the present embodiment, thereby can receive the gaseous state cold-producing medium by sucking the relatively low pressure state that refrigerant pipe P2 flows into and the gaseous state cold-producing medium of the relatively high pressure state that flows into by circuitous refrigerant pipe 31 compresses.
In the present embodiment, this bypass expansion valve 32 is made of the electric expansion valve that can regulate aperture, therefore not only can open and close circuitous refrigerant pipe 31 by bypass expansion valve 32, and can regulate the refrigerant amount by circuitous refrigerant pipe 31.That is, when for example making the decrease in efficiency of refrigeration system in the winter time because of outdoor temperature is low, can optionally move intercooler 30 by bypass expansion valve 32.
In the present embodiment, the aperture of regulating bypass expansion valve 32 makes its temperature difference with the entrance side of circuitous refrigerant pipe 31 partial sections that are located at intercooler 30 and outlet side proportional.Promptly, mensuration is arranged in the entrance side and the outlet side temperature of circuitous refrigerant pipe 31 partial sections of intercooler 30, when its temperature difference for setting the temperature difference when above, regulate bypass expansion valve 32 and make it increase aperture, when the temperature difference when setting the temperature difference, regulate bypass expansion valve 32 and make it reduce aperture.
Though make the aperture of bypass expansion valve 32 proportional in the present embodiment with the entrance side and the outlet side temperature difference of circuitous refrigerant pipe 31 partial sections that are located at intercooler 30, but the present invention is not limited thereto, and also can regulate aperture and make it proportional with the refrigerant superheat degree of discharging from compressor 11.Promptly, refrigerant temperature and pressure that mensuration is discharged from compressor 11, and grasp the refrigerant superheat degree that compressor 11 is discharged thus, when the refrigerant superheat degree of discharging from compressor 11 is above for setting value, regulating bypass expansion valve 32 makes it increase aperture, when the degree of superheat less than when setting value, regulate bypass expansion valve 32 and make it reduce aperture.
In sum, refrigeration system provided by the present invention and air conditioner with this refrigeration system, the part cold-producing medium that indoor heat converter is discharged by intercooler flows to compressor absorb heat from the residual refrigerant that indoor heat converter is discharged after being depressurized expansion, therefore flow in the outdoor heat converter by intercooler and be cooled and can absorb the cold-producing medium of heat state, the decrease in efficiency problem of contingent refrigeration system in the time of can reducing heating operation in view of the above more effectively from the exterior space.
Claims (10)
1. a refrigeration system is characterized in that comprising: the compressor that is used for compressed refrigerant; Be used for carrying out the outdoor heat converter of heat exchange with outdoor air; Be used for carrying out the indoor heat converter of heat exchange with room air; Intercooler makes the residual refrigerant absorption heat that part cold-producing medium that described indoor heat converter discharges discharges from described indoor heat converter when being used for heating operation and flow into described compressor puffing after.
2. refrigeration system according to claim 1, the part cold-producing medium of when it is characterized in that being arranged in heating operation in the described intercooler described indoor heat converter being discharged be directed to described compressor circuitous refrigerant pipe partial section be used to be connected the partial section that be connected refrigerant pipe of described outdoor heat converter with described indoor heat converter, make the partial section of described circuitous refrigerant pipe can carry out heat exchange mutually with the partial section that is connected refrigerant pipe, the entrance side that is arranged in the described circuitous refrigerant pipe partial section of described intercooler is provided with the bypass expansion valve, to be used for that the cold-producing medium by described circuitous refrigerant pipe is carried out puffing.
3. refrigeration system according to claim 2 is characterized in that described bypass expansion valve is made of the electric expansion valve that can regulate its aperture.
4. refrigeration system according to claim 3 is characterized in that regulating the aperture of described bypass expansion valve so that its entrance side and outlet side temperature difference with the described circuitous refrigerant pipe partial section that is located at described intercooler is proportional.
5. refrigeration system according to claim 3 is characterized in that the aperture of regulating described bypass expansion valve makes it proportional with the refrigerant superheat degree of discharging from described compressor.
6. a refrigeration system is characterized in that comprising: the compressor that is used for compressed refrigerant; Be used for carrying out the outdoor heat converter of heat exchange with outdoor air; Be used for carrying out the indoor heat converter of heat exchange with room air; Circuitous refrigerant pipe, the part cold-producing medium of when being used for heating operation described indoor heat converter being discharged is directed to described compressor; Be located at the bypass expansion valve of described circuitous refrigerant pipe, to be used for that the cold-producing medium by described circuitous refrigerant pipe is carried out puffing;
And the described bypass expansion valve downstream partial section of described circuitous refrigerant pipe is arranged to and can carries out heat exchange with the refrigerant pipe that is connected that is connected described outdoor heat converter and described indoor heat converter.
7. refrigeration system according to claim 6 is characterized in that described bypass expansion valve is made of the electric expansion valve that can regulate its aperture.
8. refrigeration system according to claim 7 is characterized in that the aperture of regulating described bypass expansion valve makes it proportional with the refrigerant superheat degree of discharging from described compressor.
9. air conditioner is characterized in that comprising: off-premises station, this off-premises station have the compressor that is used for compressed refrigerant and are used for carrying out with outdoor air the outdoor heat converter of heat exchange; Indoor set, this indoor set has the indoor heat converter that is used for carrying out with room air heat exchange; Intercooler, the residual refrigerant that the part cold-producing medium that described indoor heat converter is discharged is discharged from described indoor heat converter after puffing absorbs heat and flow into described compressor.
10. air conditioner according to claim 9, the part cold-producing medium of when it is characterized in that being arranged in heating operation in the described intercooler described indoor heat converter being discharged be directed to described compressor circuitous refrigerant pipe partial section be used to be connected the partial section that be connected refrigerant pipe of described outdoor heat converter with described indoor heat converter, make the partial section of described circuitous refrigerant pipe can carry out heat exchange mutually with the partial section that is connected refrigerant pipe, the entrance side that is arranged in the described circuitous refrigerant pipe partial section of described intercooler is provided with the bypass expansion valve, to be used for that the cold-producing medium by described circuitous refrigerant pipe is carried out puffing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070025248 | 2007-03-14 | ||
| KR1020070025248A KR20080084091A (en) | 2007-03-14 | 2007-03-14 | Refrigerating system and air conditioner having the same |
| KR10-2007-0025248 | 2007-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101266085A true CN101266085A (en) | 2008-09-17 |
| CN100580338C CN100580338C (en) | 2010-01-13 |
Family
ID=39988669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710139118A Active CN100580338C (en) | 2007-03-14 | 2007-07-25 | Refrigerating system and air conditioner possessing the refrigerating system |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20080084091A (en) |
| CN (1) | CN100580338C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749805A (en) * | 2008-12-03 | 2010-06-23 | 三星电子株式会社 | Air conditioner and control method thereof |
| CN109099610A (en) * | 2018-09-07 | 2018-12-28 | 青岛海信日立空调系统有限公司 | Refrigeration system, air conditioner and the air-conditioner control method of Gas-supplying enthalpy-increasing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102012775B1 (en) * | 2016-09-19 | 2019-08-21 | 엘지전자 주식회사 | Air conditioner |
| CN115717787A (en) * | 2022-11-09 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner |
-
2007
- 2007-03-14 KR KR1020070025248A patent/KR20080084091A/en not_active Application Discontinuation
- 2007-07-25 CN CN200710139118A patent/CN100580338C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749805A (en) * | 2008-12-03 | 2010-06-23 | 三星电子株式会社 | Air conditioner and control method thereof |
| CN101749805B (en) * | 2008-12-03 | 2014-11-19 | 三星电子株式会社 | Air conditioner and control method thereof |
| CN109099610A (en) * | 2018-09-07 | 2018-12-28 | 青岛海信日立空调系统有限公司 | Refrigeration system, air conditioner and the air-conditioner control method of Gas-supplying enthalpy-increasing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100580338C (en) | 2010-01-13 |
| KR20080084091A (en) | 2008-09-19 |
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| C14 | Grant of patent or utility model | ||
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