CN103375845B - Air conditioner circulation system - Google Patents
Air conditioner circulation system Download PDFInfo
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- CN103375845B CN103375845B CN201210129170.0A CN201210129170A CN103375845B CN 103375845 B CN103375845 B CN 103375845B CN 201210129170 A CN201210129170 A CN 201210129170A CN 103375845 B CN103375845 B CN 103375845B
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- check valve
- air conditioner
- condenser
- throttling arrangement
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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
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
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-conditioner set circulatory system.
Background technology
At present, market there is the air conditioner circulating system of following two types:
The first air conditioner circulating system, as shown in Figure 1, throttling arrangement during kind of refrigeration cycle is indoor electronic expansion valve, and bottom its liquid side line and outside condenser, super cooled sect is all full of liquid condition cold-producing medium.In order to ensure the stable operation of indoor electronic expansion valve, the porch of indoor electronic expansion valve is needed to have suitable degree of supercooling, and the maintenance of air conditioner circulating system condensation temperature, also the refrigerant charge of increase system is needed, therefore, air conditioner circulating system entirety needs filled more cold-producing medium when refrigerating operaton.
And the air conditioner circulating system of this structure, when refrigerating operaton, controls throttling by indoor electronic expansion valve, when heating operation, controls throttling, need configuration two electric expansion valves by outdoor electrical expansion valve; Due to the quiet requirement of indoor set, the flow of refrigerant sound sent when reducing refrigerant flow through indoor electric expansion valve, indoor electronic expansion valve needs to take outer wrap damping damping block or other sound-silencing measures; During heating operation, because indoor set is in high-pressure side, indoor machine evaporation internal volume is generally much little compared with outdoor condenser internal volume, now required refrigerant amount can be less, large air-conditioner set now generally all can set up reservoir to store the cold-producing medium having neither part nor lot in circulation, and the structure member of above configuration and increase all can increase production cost greatly.
The second air conditioner circulating system, as shown in Figure 2, refrigeration, heating operation carry out throttling control by outdoor electrical expansion valve, although such circulating system structure effectively can improve the squelch of indoor set, required refrigerant charge during minimizing refrigerating operaton, but, when heating operation, the larger pressure loss is had through super cooled sect again via the cold-producing medium after the throttling of outdoor electrical expansion valve, and not draw heat from environment in this process, the pressure loss can cause lower suction pressure of compressor, causes the decay of system heating capacity.
Summary of the invention
For the deficiency that prior art exists, technical problem to be solved by this invention is, provides a kind of air conditioner circulating system, 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 side, can not do special quiet improvement design to indoor set; And during heating operation, liquid pipe, condenser super cooled sect, indoor machine evaporation are all in high-pressure side, reservoir need not be set in addition when required refrigerant charge and refrigerating operaton quite.
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, be made up of indoor unit and outside unit, wherein, indoor unit does not arrange throttling arrangement, 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, and described throttling arrangement is communicated with the second check valve with after the first check valve parallel connection, and the second check valve is communicated with super cooled sect entrance pipe.
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.
Tool of the present invention has the following advantages and Advantageous Effects:
1, when refrigeration, heating operation, carry out throttling by outdoor electrical expansion valve, refrigerant flow direction utilizes two check valves to control, and reduces the setting of a set of indoor electronic expansion valve, effectively reduces production cost.
2, when cooling system, cold-producing medium after the throttling of outdoor electrical expansion valve, through check valve, and indoor need not be flowed to through super cooled sect, system high pressure side is only inner at condenser, and pipeline and super cooled sect are all 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 electrical expansion valve is positioned at off-premises station side, and the noise of indoor set effectively reduces, and need not do special quiet design for indoor set.
4, during heating operation, flow of refrigerant is through super cooled sect and check valve, then via the throttling of outdoor electrical expansion valve, therefore, pipeline, super cooled sect, indoor machine evaporation are all in high-pressure side, suitable when required refrigerant charge and refrigerating operaton, can reduce the design of reservoir, the suction pressure of compressor simultaneously effectively avoiding the pressure loss to cause reduces the decay with circulatory system heating capacity.
Accompanying drawing explanation
Fig. 1 is the first air conditioner circulating system schematic diagram in prior art;
Fig. 2 is the second air conditioner circulating system schematic diagram in prior art;
Fig. 3 is air conditioner circulating system schematic diagram of the present invention.
In above-mentioned figure:
1-indoor unit, 2-outside unit, 51-first check valve, 52-second check valve, 6-filter, 10-compressor, 11-outdoor electrical expansion valve, 12-super cooled sect, 13-condenser.
Detailed description of the invention
As shown in Figure 3, a kind of air conditioner circulating system, be made up of indoor unit 1 and 2 groups, 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 and outdoor electrical 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 outlet arranges the first check valve 51, the second check valve 52 is communicated with after outdoor electrical expansion valve 11 is in parallel with the first check valve 51, second check valve 52 is communicated with the entrance pipe of super cooled sect 12, the both sides of outdoor electrical expansion valve 11 are provided with filter 6.When refrigeration, heating operation, carry out throttling by outdoor electrical expansion valve 11, refrigerant flow direction utilizes the first check valve 51 and the second check valve 52 to control.Throttling arrangement adopts outdoor electrical expansion valve 11 to be positioned at outside unit 2 side, and the noise of indoor unit 1 effectively reduces, and need not do special quiet design for indoor set.
When cooling system runs, cold-producing medium after outdoor electrical expansion valve 11 throttling, through the second check valve 52, and indoor unit need not be flowed to through super cooled sect 12, system high pressure side is only inner at condenser 13, and pipeline and super cooled sect 12 are all 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 heating operation, flow of refrigerant is through super cooled sect 12, first check valve 51, then via outdoor electrical expansion valve 11 throttling, therefore, super cooled sect 12 and indoor machine evaporation (not shown) are all in high-pressure side, suitable when required refrigerant charge and refrigerating operaton, can reduce the design of reservoir, the suction pressure of compressor simultaneously effectively avoiding the pressure loss to cause reduces the decay with circulatory system heating capacity.
The above is only to preferred embodiment of the present invention, and be not do other forms of restriction to the present invention, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But, everyly do not depart from the present invention program's content, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belong to protection scope of the present invention.
Claims (3)
1. an air conditioner circulating system, be made up of indoor unit and outside unit, wherein indoor unit does not arrange throttling arrangement, 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 super cooled sect outlet arranges the first check valve, described throttling arrangement is communicated with the second check valve with after the first check valve parallel connection, and the second check valve is communicated with super cooled sect entrance pipe.
2. air conditioner circulating system according to claim 1, is characterized in that: described throttling arrangement adopts electric expansion valve.
3. air conditioner circulating system according to claim 1 and 2, 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 |
|---|---|
| CN103375845A CN103375845A (en) | 2013-10-30 |
| CN103375845B true CN103375845B (en) | 2015-05-20 |
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| 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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| Country | Link |
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| CN (1) | CN103375845B (en) |
Families Citing this family (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 |
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| CN103375845A (en) | 2013-10-30 |
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