CN103615838B - The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable - Google Patents
The cooling/heating system that internal-external heat exchanger device volumetric ratio is variable Download PDFInfo
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- CN103615838B CN103615838B CN201310652119.2A CN201310652119A CN103615838B CN 103615838 B CN103615838 B CN 103615838B CN 201310652119 A CN201310652119 A CN 201310652119A CN 103615838 B CN103615838 B CN 103615838B
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Abstract
The invention discloses the cooling/heating system that a kind of internal-external heat exchanger device volumetric ratio is variable, comprise the circulatory system be made up of compressor, outdoor heat exchanger, capillary, indoor heat exchanger, cross valve and check valve, it is characterized in that, described outdoor heat exchanger is made up of outdoor heat exchanger one and outdoor heat exchanger two, is connected between described outdoor heat exchanger one and outdoor heat exchanger two by check valve; Described check valve two ends are connected in parallel to throttle capillary tube.This system heat lower to the part of outdoor heat exchanger two as indoor heat exchanger, by the cooling again of outdoor heat exchanger two, reduce system degree of supercooling, reduce system pressure, thus improve system heating capacity and reduce system input power, thus the efficiency EER that raising system heats.
Description
The present invention relates to air-conditioning refrigeration system, the cooling/heating system that specifically a kind of internal-external heat exchanger device volumetric ratio is variable.
Background technology
Along with the raising of national standard efficiency grade, domestic air-conditioner often uses large outer machine to improve the efficiency of unit, although heating capacity can reach requirement when unit heats, but due to indoor heat exchanger area do not increase, often cause and heat efficiency (COP) not as refrigeration efficiency (EER), Here it is, and internal-external machine system does not mate the consequence caused.
Summary of the invention
The present invention is the deficiency existed to solve existing said system, provides the cooling/heating system that a kind of internal-external heat exchanger device volumetric ratio is variable, and this system improves the Energy Efficiency Ratio heating circulation under the prerequisite not affecting refrigeration system and guarantee 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 be made up of compressor, outdoor heat exchanger, capillary, indoor heat exchanger, cross valve and check valve, its design feature is, described outdoor heat exchanger is made up of outdoor heat exchanger one and outdoor heat exchanger two, is connected between described outdoor heat exchanger one and outdoor heat exchanger two by check valve; 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 fraction any.
Immediately below described outdoor heat exchanger two heat exchanger one disposed in the outdoor.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the flow process of conventional air-conditioner system adjusts by the present invention, the outdoor heat exchanger of outer machine is divided into outdoor heat exchanger one and outdoor heat exchanger 2 two, connected by check valve between outdoor heat exchanger one and outdoor heat exchanger two, capillary and check valve is adopted to be connected in parallel, under cooling flow, cold-producing medium by compressor compresses, gas into chamber external heat exchanger one, again flow into outdoor heat exchanger two be cooled to subcooled liquid, enter indoor heat exchanger evaporation by capillary-compensated, liquid again after enter a circulation of compressor.Heating under flow process, cold-producing medium passes through compressor compresses, gas enters indoor heat exchanger (evaporimeter of the refrigeration) cooling of interior machine, again by capillary portion throttling, subcooled liquid is cooled to further again by outdoor heat exchanger two, entering the further throttling of capillary is again low pressure liquid, then is evaporated to gas by outdoor heat exchanger one (evaporimeter), then enters a circulation of compressor; System by the cooling of two condensers, reduces condensing pressure when heating further, improves the degree of supercooling of system, thus 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 cooling twice effect, can ensure bottom frost-free in low temperature environment, reduces defrost difficulty, increases low-temperature heating capacity.
Accompanying drawing explanation
Fig. 1 is conventional refrigeration cycle schematic diagram.
Fig. 2 is that routine heats circulation schematic diagram.
Fig. 3 is the present invention's variable heat exchanger volumetric ratio 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 exchanger two, 12 2 times check valves, 13 throttle capillary tubes;
Detailed description of the invention
Below by way of detailed description of the invention, and the invention will be further described by reference to the accompanying drawings.
Non-limiting examples is as described below: introduce four kinds of cycle of states below respectively
State 1
As shown in Figure 1, compressor 1 discharge high temperature and high pressure gas flow through cross valve 2 laggard enter outdoor heat exchanger 3 cool, forward flowing through check valve 5 again, laggard to become owner of capillary 7 throttling be low pressure liquid, then flow into indoor heat exchanger 8 and be evaporated to low-pressure gas and enter compressor 1 by cross valve 2 again; This is conventional kind of refrigeration cycle.
State 2
As shown in Figure 2, compressor 1 discharge high temperature and high pressure gas flow through cross valve 2 laggard enter indoor heat exchanger 8 cool, flow through assisted capillary 6 again and main capillary 7 throttling is low pressure liquid, then flow into outdoor heat exchanger 3 and be evaporated to low-pressure gas and enter compressor 1 air-breathing by cross valve 2 again; This heats circulation for what commonly use.
State 3
As shown in Figure 3, compressor 1 discharge high temperature and high pressure gas flow through cross valve 2 laggard enter outdoor heat exchanger 1 cool, forward flow through again secondary check valve 12 laggard enter outdoor heat exchanger 2 11 be again cooled to subcooled liquid, forward flowing through check valve 5, laggard to become owner of capillary 7 throttling be low pressure liquid.Flow into indoor heat exchanger 8 again and be evaporated to low-pressure gas, then enter compressor 1 by cross valve 2; This is forward kind of refrigeration cycle, and this circulation is 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 commutate laggard enter indoor heat exchanger 8 cool, flow through assisted capillary 6 and main capillary 7 partial throttling again, flow into outdoor heat exchanger 2 11 again, be Low temperature low pressure liquid by throttle capillary tube 13 throttling again, then enter outdoor heat exchanger 1 and evaporate, be evaporated to low temperature low pressure gas, enter compressor by cross valve 2 again, this is reverse kind of refrigeration cycle; A part for outdoor heat exchanger uses as indoor heat exchanger by this circulation, makes to enter indoor high-pressure gas refrigerant and again cools in the outdoor environment of low temperature, the pressure of system is reduced, thus reduces the input power of unit, obtain higher efficiency.
Following table is Data Comparison test before and after KFRd-35GW/081+E2 improves.
Table 1KFRd-35GW/081+E2 changes Data Comparison before and after flow process
From test data: the heat exchanger area due to internal-external machine during refrigeration is constant, and refrigeration data is consistent; Because interior machine system increases when heating, outer machine system reduces, and changes condenser area, adds system degree of supercooling, reduce system condensing pressure, reduce system input power, improve COP value 0.3.
Claims (3)
1. the cooling/heating system that internal-external heat exchanger device volumetric ratio is variable, comprise the circulatory system be made up of compressor, outdoor heat exchanger, capillary, indoor heat exchanger, cross valve and check valve, it is characterized in that, described outdoor heat exchanger is made up of outdoor heat exchanger one and outdoor heat exchanger two, is connected between described outdoor heat exchanger one and outdoor heat exchanger two by check valve; Described check valve two ends are connected in parallel to throttle capillary tube;
During kind of refrigeration cycle, compressor discharge high temperature and high pressure gas flow through cross valve laggard enter outdoor heat exchanger one cooling, forward flow through again check valve laggard enter outdoor heat exchanger two be again cooled to subcooled liquid, be low pressure liquid forward flowing through the laggard capillary-compensated of becoming owner of of secondary check valve; Flow into indoor heat exchanger again and be evaporated to low-pressure gas, then enter compressor by cross valve;
Heat circulation time, compressor discharge high temperature and high pressure gas flow through electric rear cross valve commutation laggard enter indoor heat exchanger cooling, flow through assisted capillary and main capillary portion throttling again, flow into outdoor heat exchanger two again, be Low temperature low pressure liquid by throttle capillary tube throttling again, then enter outdoor heat exchanger one evaporation, be evaporated to low temperature low pressure gas, enter compressor by cross valve again, this is reverse kind of refrigeration cycle; A part for outdoor heat exchanger uses as indoor heat exchanger by this circulation, makes to enter indoor high-pressure gas refrigerant and again cools in the outdoor environment of low temperature, the pressure of system is reduced, thus reduces the input power of unit, obtain higher efficiency.
2. the cooling/heating system that internal-external heat exchanger device volumetric ratio according to claim 1 is variable, is characterized in that, described outdoor heat exchanger one and outdoor heat exchanger two volume fraction any.
3. the cooling/heating system that internal-external heat exchanger device volumetric ratio according to claim 1 and 2 is variable, is characterized in that, immediately below described outdoor heat exchanger two heat exchanger one disposed in the outdoor.
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| Application Number | Priority Date | Filing Date | Title |
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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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| 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 CN103615838A (en) | 2014-03-05 |
| CN103615838B true CN103615838B (en) | 2016-04-13 |
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Families Citing this family (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 |
| CN107702271B (en) * | 2017-08-30 | 2020-02-04 | 青岛海尔空调器有限总公司 | Air conditioner and fault detection and processing method of supercooling pipe set of air conditioner |
| 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 | Priority date | Publication date | Assignee | Title |
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| JPH11148737A (en) * | 1997-11-20 | 1999-06-02 | Fujitsu General Ltd | Air conditioner |
| KR100539570B1 (en) * | 2004-01-27 | 2005-12-29 | 엘지전자 주식회사 | multi airconditioner |
| 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 |
| CN103958986B (en) * | 2011-11-29 | 2016-08-31 | 三菱电机株式会社 | Refrigerating air-conditioning |
| 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 |
| 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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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. |
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