CN103375845A - Air conditioner circulation system - Google Patents
Air conditioner circulation system Download PDFInfo
- Publication number
- CN103375845A CN103375845A CN2012101291700A CN201210129170A CN103375845A CN 103375845 A CN103375845 A CN 103375845A CN 2012101291700 A CN2012101291700 A CN 2012101291700A CN 201210129170 A CN201210129170 A CN 201210129170A CN 103375845 A CN103375845 A CN 103375845A
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- Prior art keywords
- check valve
- air conditioner
- condenser
- throttling arrangement
- side unit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides an air conditioner circulation system which is formed by an indoor side unit and an outdoor side unit. The indoor side unit is not provided with a throttling device, and the outdoor side unit comprises a compressor, a condenser, an undercooling section and the throttling device. One end of the condenser is communicated with the compressor through a pipeline, the other end of the condenser is connected with the throttling device, an undercooling section outlet is provided with a first check valve, the throttling device is connected with the first check valve in parallel to be communicated with a second check valve, and the second check valve is communicated with an undercooling section inlet pipeline. By improving the inner structure of the circulation system, only a small amount of refrigerant injection is required to achieve higher condensing temperature; special silencing improvement design on the indoor side unit is not required; a liquid storage device is not required during heating operation.
Description
Technical field
The present invention relates to a kind of air-conditioning equipment, specifically a kind of air-conditioning unit circulatory system.
Background technology
At present, following two types air conditioner circulating system is arranged on the market:
The first air conditioner circulating system, as shown in Figure 1, the throttling arrangement during kind of refrigeration cycle is the indoor electronic expansion valve, its liquid side line and outside condenser bottom super cooled sect all are full of the liquid condition cold-producing medium.In order to guarantee the stable operation of indoor electronic expansion valve, need the porch of indoor electronic expansion valve to have suitable degree of supercooling, and the maintenance of air conditioner circulating system condensation temperature, also need to increase the refrigerant charge of system, therefore, air conditioner circulating system integral body need to fill more cold-producing medium when refrigerating operaton.
And the air conditioner circulating system of this structure when refrigerating operaton, by indoor electronic expansion valve control throttling, when heating operation, by outdoor electronic expansion valve controls throttling, needs two electric expansion valves of configuration; Because the quiet requirement of indoor set reduces the flow of refrigerant sound that sends when cold-producing medium is flowed through the indoor electronic expansion valve, the indoor electronic expansion valve need to be taked outer wrap damping damping block or other noise reduction measure; During heating operation, because indoor set is in the high-pressure side, the indoor machine evaporation internal volume is generally little a lot of than the outdoor condenser internal volume, this moment, required refrigerant amount can be less, generally all can set up reservoir stores the cold-producing medium that has neither part nor lot in circulation to large air-conditioning unit at this moment, and more than configuration all can increase production cost greatly with the structure member that increases.
The second air conditioner circulating system, as shown in Figure 2, refrigeration, heating operation carry out throttling control by outdoor electric expansion valve, although such circulating system structure can effectively improve the squelch of indoor set, required refrigerant charge when reducing refrigerating operaton, but, when heating operation, have the larger pressure loss through super cooled sect again via the cold-producing medium after the outdoor electric expansion valve throttling, and in this process draw heat from environment not, the pressure loss can cause lower suction pressure of compressor, causes the decay of system's heating capacity.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is, a kind of air conditioner circulating system is provided, and by improving the internal structure of the circulatory system, only needs less refrigerant charge just can reach higher condensation temperature; Throttling arrangement is positioned at off-premises station one side, can indoor set not done special quiet improvement design; And during heating operation, liquid pipe, condenser super cooled sect, indoor machine evaporation all are in the high-pressure side, and be suitable when required refrigerant charge and refrigerating operaton, and reservoir need not be set in addition.
For solving the problems of the technologies described above, the technical solution used in the present invention is, a kind of air conditioner circulating system is provided, consisted of by indoor unit and outside unit, wherein, the indoor unit does not arrange throttling arrangement, the outside unit comprises compressor, condenser, super cooled sect and throttling arrangement, one end of condenser is connected with compressor by pipeline, the other end of its condenser connects throttling arrangement, super cooled sect outlet arranges the first check valve, is communicated with the second check valve, the second check valve connection super cooled sect entrance pipe after described throttling arrangement and the first check valve parallel connection.
Above-mentioned air conditioner circulating system, its throttling arrangement adopts electric expansion valve.
Above-mentioned air conditioner circulating system, the both sides of its throttling arrangement are provided with filter.
The present invention has following advantage and useful technique effect:
1, when refrigeration, heating operation, carry out throttling by outdoor electric expansion valve, refrigerant flow direction utilizes two check valves to control, and reduces the setting of a cover indoor electronic expansion valve, effectively reduces production costs.
2, when cooling system, cold-producing medium after outdoor electric expansion valve throttling, through check valve, and needn't flow to the indoor through super cooled sect, and the system high pressure side is only inner at condenser, and pipeline and super cooled sect all are in low-pressure side, therefore, only need less refrigerant charge just can reach higher condensation temperature, save the use amount of cold-producing medium, energy-conserving and environment-protective.
3, throttling arrangement is that outdoor electric expansion valve is positioned at off-premises station one side, and the noise of indoor set effectively reduces, and need not do special quiet design for indoor set.
4, during heating operation, cold-producing medium flow through super cooled sect and check valve, then via outdoor electric expansion valve throttling, therefore, pipeline, super cooled sect, indoor machine evaporation all are in the high-pressure side, suitable when required refrigerant charge and refrigerating operaton, can reduce the design of reservoir, the suction pressure of compressor of effectively avoiding the pressure loss to cause simultaneously reduces the decay with circulatory system heating capacity.
Description of drawings
Fig. 1 is the first air conditioner circulating system schematic diagram in the prior art;
Fig. 2 is the second air conditioner circulating system schematic diagram in the prior art;
Fig. 3 is air conditioner circulating system schematic diagram of the present invention.
Among the above-mentioned figure:
1-indoor unit, 2-outside unit, 51-the first check valve, 52-the second check valve, 6-filter, 10-compressor, the outdoor electric expansion valve of 11-, 12-super cooled sect, 13-condenser.
The specific embodiment
As shown in Figure 3, a kind of air conditioner circulating system, consisted of by 2 groups in indoor unit 1 and outside machine, wherein indoor unit 1 does not arrange throttling arrangement, outside unit 2 comprises compressor 10, condenser 13, super cooled sect 12 and throttling arrangement are outdoor electric expansion valve 11, one end of condenser 13 is connected with compressor 10 by pipeline, the other end junction chamber exoelectron expansion valve 11 of its condenser 13, super cooled sect 12 outlets arrange the first check valve 51, outdoor electric expansion valve 11 be communicated with the second check valve 52 after the first check valve 51 is in parallel, the second check valve 52 is communicated with the entrance pipe of super cooled sect 12, and the both sides of outdoor electric expansion valve 11 are provided with filter 6.When refrigeration, heating operation, carry out throttling by outdoor electric expansion valve 11, refrigerant flow direction utilizes the first check valve 51 and the second check valve 52 to control.Throttling arrangement adopts outdoor electric expansion valve 11 to be positioned at outside unit 2 one sides, and the noise of indoor unit 1 effectively reduces, and need not do special quiet design for indoor set.
When cooling system moves, cold-producing medium after outdoor electric expansion valve 11 throttlings, through the second check valve 52, and needn't flow to the indoor unit through super cooled sect 12, and the system high pressure side is only in condenser 13 inside, and pipeline and super cooled sect 12 all are in low-pressure side, therefore, only need less refrigerant charge just can reach higher condensation temperature, save the use amount of cold-producing medium, energy-conserving and environment-protective.
When system's heating operation, cold-producing medium flow through super cooled sect 12, the first check valve 51, then via outdoor electric expansion valve 11 throttlings, therefore, super cooled sect 12 and indoor machine evaporation (not shown) all are in the high-pressure side, suitable when required refrigerant charge and refrigerating operaton, can reduce the design of reservoir, the suction pressure of compressor of effectively avoiding the pressure loss to cause simultaneously reduces the decay with circulatory system heating capacity.
The above only is to preferred embodiment of the present invention, is not to be that the present invention is done other forms of restriction, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every the present invention program's content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to protection scope of the present invention according to technical spirit of the present invention.
Claims (3)
1. air conditioner circulating system, consisted of by indoor unit and outside unit, wherein the indoor unit does not arrange throttling arrangement, the outside unit comprises compressor, condenser, super cooled sect and throttling arrangement, one end of condenser is connected with compressor by pipeline, it is characterized in that: the other end of condenser connects throttling arrangement, and the super cooled sect outlet arranges the first check valve, be communicated with the second check valve after described throttling arrangement and the first check valve parallel connection, the second check valve is communicated with the super cooled sect entrance pipe.
2. air conditioner circulating system according to claim 1 is characterized in that: described throttling arrangement employing electric expansion valve.
3. air conditioner circulating system according to claim 1 and 2, it is characterized in that: the both sides of described throttling arrangement are provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129170.0A CN103375845B (en) | 2012-04-28 | 2012-04-28 | Air conditioner circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129170.0A CN103375845B (en) | 2012-04-28 | 2012-04-28 | Air conditioner circulation system |
Publications (2)
| Publication Number | Publication Date |
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| CN103375845A true CN103375845A (en) | 2013-10-30 |
| CN103375845B CN103375845B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210129170.0A Active CN103375845B (en) | 2012-04-28 | 2012-04-28 | Air conditioner circulation system |
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| CN (1) | CN103375845B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165845A (en) * | 2021-11-26 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000033002A1 (en) * | 1998-12-01 | 2000-06-08 | Daikin Industries,Ltd. | Refrigerator |
| CN2615600Y (en) * | 2003-01-17 | 2004-05-12 | 清华同方人工环境有限公司 | Undercooling ice suppressing wind side heat exchanging apparatus |
| CN101315226A (en) * | 2008-06-30 | 2008-12-03 | 青岛海信日立空调系统有限公司 | Air conditioner circulating system |
| CN202613591U (en) * | 2012-04-28 | 2012-12-19 | 青岛海信日立空调系统有限公司 | Circulating system for air conditioner |
-
2012
- 2012-04-28 CN CN201210129170.0A patent/CN103375845B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000033002A1 (en) * | 1998-12-01 | 2000-06-08 | Daikin Industries,Ltd. | Refrigerator |
| CN2615600Y (en) * | 2003-01-17 | 2004-05-12 | 清华同方人工环境有限公司 | Undercooling ice suppressing wind side heat exchanging apparatus |
| CN101315226A (en) * | 2008-06-30 | 2008-12-03 | 青岛海信日立空调系统有限公司 | Air conditioner circulating system |
| CN202613591U (en) * | 2012-04-28 | 2012-12-19 | 青岛海信日立空调系统有限公司 | Circulating system for air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165845A (en) * | 2021-11-26 | 2022-03-11 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner |
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| CN103375845B (en) | 2015-05-20 |
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