CN103615838A - Refrigeration/heating system with inside and outside heat exchanger volume ratio variable - Google Patents
Refrigeration/heating system with inside and outside heat exchanger volume ratio variable Download PDFInfo
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- CN103615838A CN103615838A CN201310652119.2A CN201310652119A CN103615838A CN 103615838 A CN103615838 A CN 103615838A CN 201310652119 A CN201310652119 A CN 201310652119A CN 103615838 A CN103615838 A CN 103615838A
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Abstract
The invention discloses a refrigeration/heating system with the inside and outside heat exchanger volume ratio variable. The refrigeration/heating system comprises a circulating system formed by a compressor, an outdoor heat exchanger, capillary tubes, an indoor heat exchanger, a four-way valve and a check valve. The refrigeration/heating system is characterized in that the outdoor heat exchanger is composed of a first outdoor heat exchanger and a second outdoor heat exchanger, the first outdoor heat exchanger is connected with the second outdoor heat exchanger through the check valve, and two ends of the check valve are in parallel connection with the throttling capillary tubes. According to the system, the second outdoor heat exchanger serves as part of the indoor heat exchanger under the heating, the super-cooling degree of the system is reduced by performing cooling again through the second outdoor heat exchanger, system pressure is reduced, the system heating capacity is improved, system input power is reduced, and accordingly the heating EER of the system is improved.
Description
The present invention relates to air-conditioning refrigeration system, specifically the variable cooling/heating system of a kind of internal-external heat exchanger device volumetric ratio.
Background technology
Raising along with national standard efficiency grade, domestic air-conditioner often improves the efficiency of unit with large outer machine, although heating capacity can reach requirement when unit heats, but due to indoor heat exchanger area do not increase, tend to cause heat efficiency (COP) not as refrigeration efficiency (EER), Here it is, and inside and outside machine system is not mated the consequence causing.
Summary of the invention
The present invention is the deficiency existing in order to solve existing said system, provides a kind of internal-external heat exchanger device volumetric ratio variable refrigeration system, and this system improves the Energy Efficiency Ratio that heats circulation under the prerequisite that does not affect refrigeration system and assurance heating capacity.
Technical solution problem of the present invention adopts following technical scheme:
The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable, comprise the circulatory system being formed by compressor, outdoor heat exchanger, capillary, indoor heat exchanger, cross valve and check valve, its design feature is, described outdoor heat exchanger is comprised of outdoor heat exchanger one and outdoor heat exchanger two, between described outdoor heat exchanger one and outdoor heat exchanger two, by check valve, connects; Described check valve two ends are connected in parallel to throttle capillary tube.
Design feature of the present invention is also:
Described outdoor heat exchanger one and outdoor heat exchanger two volume ratios are any.
Described outdoor heat exchanger two is arranged under outdoor heat exchanger one.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention adjusts the flow process of conventional air-conditioner system, the outdoor heat exchanger of outer machine is divided into 2 two of outdoor heat exchanger one and outdoor heat exchangers, between outdoor heat exchanger one and outdoor heat exchanger two, by check valve, connect, adopt capillary and check valve to be connected in parallel, under cooling flow, cold-producing medium is by compressor compresses, and gas flow enters outdoor heat exchanger one, flow into outdoor heat exchanger two is again cooled to subcooled liquid, by capillary-compensated, liquid, enters a circulation that enters compressor after indoor heat exchanger evaporation again.Heating under flow process, cold-producing medium passes through compressor compresses, it is cooling that gas enters the indoor heat exchanger (evaporimeter of refrigeration) of interior machine, again by capillary portion throttling, by outdoor heat exchanger two, be further cooled to subcooled liquid again, entering the further throttling of capillary is low pressure liquid again, then is evaporated to gas by outdoor heat exchanger one (evaporimeter), then enters a circulation of compressor; System cooling by two condensers when heating, further reduces condensing pressure, improves the degree of supercooling of system, thereby reduces the input power of unit and improve the heating energy efficiency ratio of unit.
2, outdoor heat exchanger two of the present invention is positioned over outdoor heat exchanger one bottom, is a part for condenser, plays secondary cooling effect, can guarantee bottom frost-free in low temperature environment, reduces defrost difficulty, increases low-temperature heating capacity.
Accompanying drawing explanation
Fig. 1 is conventional kind of refrigeration cycle schematic diagram.
Fig. 2 is that routine heats circulation schematic diagram.
Fig. 3 is the variable heat exchanger volumetric ratio of the present invention kind of refrigeration cycle schematic diagram.
Fig. 4 is that the variable heat exchanger volumetric ratio of the present invention heats circulation schematic diagram.
Number in the figure: 1 compressor, 2 cross valves, 3 outdoor heat exchangers, 4 outdoor fans, 5 check valves, 6 assisted capillaries, 7 main capillaries, 8 indoor heat exchangers, 9 indoor fans, 10 outdoor heat exchangers one, 11 outdoor heat exchangers two, 12 2 check valves, 13 throttle capillary tubes;
The specific embodiment
Below pass through the specific embodiment, and the invention will be further described by reference to the accompanying drawings.
Non-limiting examples is as described below: introduce respectively four kinds of cycle of states below
As shown in Figure 1, compressor 1 is discharged high temperature and high pressure gas and is flowed through that laggard to enter outdoor heat exchanger 3 cooling for cross valve 2, forward flowing through check valve 5, laggard to become owner of capillary 7 throttlings be low pressure liquid again, then flow into indoor heat exchanger 8 and be evaporated to low-pressure gas and by cross valve 2, enter compressor 1 again; This is conventional kind of refrigeration cycle.
As shown in Figure 2, compressor 1 is discharged high temperature and high pressure gas and is flowed through that laggard to enter indoor heat exchanger 8 cooling for cross valve 2, flow through again assisted capillary 6 and 7 throttlings of main capillary are low pressure liquid, then flow into outdoor heat exchanger 3 and be evaporated to low-pressure gas by cross valve 2, to enter compressor 1 more air-breathing; This is the conventional circulation that heats.
As shown in Figure 3, compressor 1 is discharged high temperature and high pressure gas and is flowed through that laggard to enter outdoor heat exchanger 1 cooling for cross valve 2, forward flow through that check valve 5 is laggard to be entered outdoor heat exchanger 2 11 and be again cooled to subcooled liquid, forward flowing through secondary check valve 12, laggard to become owner of capillary 7 throttlings be low pressure liquid again.Flow into again indoor heat exchanger 8 and be evaporated to low-pressure gas, then enter compressor 1 by cross valve 2; This is forward kind of refrigeration cycle, and this circulates with above-mentioned state 1.
State 4
As shown in Figure 4, compressor 1 discharge high temperature and high pressure gas flow through electric rear cross valve 2 commutations laggard to enter indoor heat exchanger 8 cooling, flow through again assisted capillary 6 and main capillary 7 partial throttlings, flow into again outdoor heat exchanger 2 11, by throttle capillary tube 13 throttlings, be low-temp low-pressure liquid again, then enter outdoor heat exchanger one 10 evaporations, be evaporated to low-temp low-pressure gas, by cross valve 2, enter compressor again, this is reverse kind of refrigeration cycle; This circulation is used a part for outdoor heat exchanger as indoor heat exchanger, make to enter indoor high-pressure gas refrigerant again cooling in the outdoor environment of low temperature, makes the pressure decreased of system, thereby reduces the input power of unit, obtains higher efficiency.
Following table is Data Comparison test before and after KFRd-35GW/081+E2 improves.
Table 1KFRd-35GW/081+E2 changes flow process front and back Data Comparison
From test data: the heat exchanger area due to inside and outside machine during refrigeration is constant, refrigeration data consistent; While heating, because interior machine system increases, outer machine system reduces, and has changed condenser area, has increased system degree of supercooling, has reduced system condensing pressure, has reduced system input power, has improved COP value 0.3.
Claims (3)
1. the variable cooling/heating system of internal-external heat exchanger device volumetric ratio, comprise the circulatory system being formed by compressor, outdoor heat exchanger, capillary, indoor heat exchanger, cross valve and check valve, it is characterized in that, described outdoor heat exchanger is comprised of outdoor heat exchanger one and outdoor heat exchanger two, between described outdoor heat exchanger one and outdoor heat exchanger two, by check valve, connects; Described check valve two ends are connected in parallel to throttle capillary tube.
2. the cooling/heating system that changes internal-external heat exchanger device volume according to claim 1, is characterized in that, described outdoor heat exchanger one and outdoor heat exchanger two volume ratios are any.
3. the cooling/heating system that changes internal-external heat exchanger device volume according to claim 1 and 2, is characterized in that, the described outdoor heat exchanger two of crossing is arranged under outdoor heat exchanger one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652119.2A CN103615838B (en) | 2013-12-05 | 2013-12-05 | The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable |
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| CN201310652119.2A CN103615838B (en) | 2013-12-05 | 2013-12-05 | The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable |
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| CN103615838A true CN103615838A (en) | 2014-03-05 |
| CN103615838B CN103615838B (en) | 2016-04-13 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466091A (en) * | 2015-12-12 | 2016-04-06 | 西安交通大学 | Heat pump type air conditioner refrigerating circulating system with subcooler |
| CN107702271A (en) * | 2017-08-30 | 2018-02-16 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN110345636A (en) * | 2019-07-30 | 2019-10-18 | 西安交通大学 | The heat reclamation type air source hot pump water heater circulatory system and working method |
| CN114623628A (en) * | 2022-04-21 | 2022-06-14 | 合肥圣三松冷热技术有限公司 | Heat pump circulating system and working method thereof |
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| JP2005214613A (en) * | 2004-01-27 | 2005-08-11 | Lg Electronics Inc | Air conditioner |
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| CN202613830U (en) * | 2012-03-30 | 2012-12-19 | 上海凯菱家电扬州有限公司 | Air-conditioning system used in low-temperature environment |
| WO2013080244A1 (en) * | 2011-11-29 | 2013-06-06 | 三菱電機株式会社 | Refrigerating/air-conditioning device |
| CN203595317U (en) * | 2013-12-05 | 2014-05-14 | 中国扬子集团滁州扬子空调器有限公司 | Refrigerating system with variable indoor and outdoor heat exchanger volume ratio |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11148737A (en) * | 1997-11-20 | 1999-06-02 | Fujitsu General Ltd | Air conditioner |
| JP2005214613A (en) * | 2004-01-27 | 2005-08-11 | Lg Electronics Inc | Air conditioner |
| CN200982766Y (en) * | 2006-12-07 | 2007-11-28 | 郭建毅 | Modified air supply heat pump water heater and air conditioner |
| CN201715775U (en) * | 2010-07-07 | 2011-01-19 | 深圳市庄合热泵空调有限公司 | Air-source heat pump air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466091A (en) * | 2015-12-12 | 2016-04-06 | 西安交通大学 | Heat pump type air conditioner refrigerating circulating system with subcooler |
| CN107702271A (en) * | 2017-08-30 | 2018-02-16 | 青岛海尔空调器有限总公司 | The fault detect of air-conditioning and its supercooling tube group and processing method |
| CN110345636A (en) * | 2019-07-30 | 2019-10-18 | 西安交通大学 | The heat reclamation type air source hot pump water heater circulatory system and working method |
| CN114623628A (en) * | 2022-04-21 | 2022-06-14 | 合肥圣三松冷热技术有限公司 | Heat pump circulating system and working method thereof |
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| Publication number | Publication date |
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| CN103615838B (en) | 2016-04-13 |
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Address after: 239000 No. 585, Shanghai Road, Chengdong Industrial Park, Anhui, Chuzhou Patentee after: Anhui Yangzi Air Conditioning Co., Ltd Address before: 239000 No. 585, Shanghai Road, Chengdong Industrial Park, Anhui, Chuzhou Patentee before: CHINA YANGZI GROUP CHUZHOU YANGZI AIR CONDITIONER Co.,Ltd. |