CN103712370B - A kind of air source heat pump system - Google Patents
A kind of air source heat pump system Download PDFInfo
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- CN103712370B CN103712370B CN201310713339.1A CN201310713339A CN103712370B CN 103712370 B CN103712370 B CN 103712370B CN 201310713339 A CN201310713339 A CN 201310713339A CN 103712370 B CN103712370 B CN 103712370B
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Abstract
The invention discloses a kind of air source heat pump system, on the basis of regular air source source pump, outdoor heat exchanger is divided into two parts, is the first outdoor heat exchanger, the second outdoor heat exchanger respectively;Two parts series connection in refrigeration cycle, as condenser, is of value to the condensation degree of supercooling increasing kind of refrigeration cycle, improves cooling system amount;Heat the second outdoor heat exchanger in closed circuit to connect with indoor heat exchanger, as condenser;It is of value to and slows down the first outdoor heat exchanger time that frost layer is formed when heating operation, improve systematic energy efficiency ratio。
Description
Technical field
The present invention relates to the system schema of a kind of novel raising net for air-source heat pump units stable operation, belong to refrigerating machine application。
Background technology
From heat pump techniques proposes certainly; experienced by the evolution of complications; have been enter into the stage of comprehensive high speed development at present; especially under the ambient pressure of energy crisis and global warming; heat pump techniques becomes the focus that various countries pay close attention to, and the research of all kinds of heat pump techniques, application and popularization also rise to a height given more sustained attention。Net for air-source heat pump units cleans as one, the efficient energy, obtains large-scale application in China, but in concrete utilization, when particularly winter heating runs, the generation of frost layer, efficiency and indoor comfortableness to system make a big impact。Based on more than, this paper presents the system schema of a kind of novel raising net for air-source heat pump units stable operation, impact on indoor comfort when time that when effectively having delayed to heat, frost layer is formed and defrosting。
Summary of the invention
The invention aims to expand existing air source heat pump technology, it is proposed that the system schema of a kind of novel raising net for air-source heat pump units stable operation, impact on indoor comfort when time that when effectively having delayed to heat, frost layer is formed and defrosting。
For achieving the above object, the present invention is by the following technical solutions:
A kind of air source heat pump system: including refrigeration cycle and heat closed circuit, described refrigeration cycle is sequentially connected with is constituted by compressor, cross valve, the first outdoor heat exchanger, the first electromagnetic valve, the second outdoor heat exchanger, reservoir, the first expansion valve, indoor heat exchanger, cross valve, gas-liquid separator, compressor;Described heat loop back compressors, cross valve, indoor heat exchanger, the first check valve, reservoir, the second outdoor heat exchanger, the second expansion valve, the first outdoor heat exchanger, cross valve, gas-liquid separator, compressor are sequentially connected with composition。
Described second outdoor heat exchanger is laid on bottom the first outdoor heat exchanger, and in refrigeration cycle, described second heat exchanger plays super cooling effect;Heating in closed circuit, the second heat exchanger acts the effect slowing down frosting and preventing condensed water from freezing by additional heat。
Also including defrosting closed circuit, described defrosting loops back compressors, cross valve, the first outdoor heat exchanger, the second electromagnetic valve, capillary tube, supplemental heat source heat exchanger, the second check valve, cross valve, gas-liquid separator, compressor are sequentially connected with composition。
Described supplemental heat source heat exchanger is electric heating refrigeration heater。
Described supplemental heat source heat exchanger is heat accumulating type refrigeration heater。
Beneficial effects of the present invention:
One air source heat pump system of the present invention, outdoor heat exchanger is divided into the first outdoor heat exchanger and two parts of the second outdoor heat exchanger, second outdoor heat exchanger and the first outdoor heat exchanger or connect with indoor heat exchanger, the system that can realize in refrigeration, the change exchanging heat demand under heating condition, simultaneously because when heating the second outdoor heat exchanger as condenser on the impact as vaporizer heat of first outdoor heat exchanger;
In refrigeration cycle, the second outdoor heat exchanger is of value to the condensation degree of supercooling increasing kind of refrigeration cycle, improves cooling system amount;
Heat the second outdoor heat exchanger in closed circuit be of value to slow down first outdoor heat exchanger when heating operation frost layer formed time, improve systematic energy efficiency ratio。
The defrosting branch road increased, it is to avoid the impact on indoor comfort caused to blows cold wind indoors during conventional heat pump system reacting cycle defrosting。
The present invention is especially suitable for the expansion of stable operation during net for air-source heat pump units heating condition and the application such as perfect。
Accompanying drawing illustrates:
Fig. 1 is the air source heat pump system schematic flow sheet of the present invention;
Wherein: 1, compressor;2, cross valve;3, the first outdoor heat exchanger;4, the second outdoor heat exchanger;5, the first electromagnetic valve;6, reservoir;7, the first expansion valve;8, indoor heat exchanger;9, gas-liquid separator;10, the first check valve;11, the second expansion valve;12, the second electromagnetic valve;13, capillary tube;14, additional heat heat exchanger;15, the second check valve。
Detailed description of the invention
As shown in Figure 1, a kind of net for air-source heat pump units runs system, including refrigeration cycle and heat closed circuit, the refrigeration cycle of system is sequentially connected with is constituted by compressor 1, cross valve the 2, first outdoor heat exchanger the 3, first electromagnetic valve the 5, second outdoor heat exchanger 4, reservoir the 6, first expansion valve 7, indoor heat exchanger 8, cross valve 2, gas-liquid separator 9, compressor 1。
The heating of system loops back compressors 1, cross valve 2, indoor heat exchanger the 8, first check valve 10, reservoir the 6, second outdoor heat exchanger the 4, second expansion valve the 11, first outdoor heat exchanger 3, cross valve 2, gas-liquid separator 9, compressor 1 are sequentially connected with composition。
On the basis of regular air source source pump, outdoor heat exchanger is divided into two parts, is first outdoor heat exchanger the 3, second outdoor heat exchanger 4 respectively;Two parts series connection in refrigeration cycle, as condenser, is of value to the condensation degree of supercooling increasing kind of refrigeration cycle, improves cooling system amount;Heat the second outdoor heat exchanger 4 in closed circuit to connect with indoor heat exchanger 8, as condenser;It is of value to and slows down the first outdoor heat exchanger time that frost layer is formed when heating operation, improve systematic energy efficiency ratio。
In addition, system also includes a defrosting closed circuit, is sequentially connected with is constituted by compressor 1, cross valve the 2, first outdoor heat exchanger the 3, second electromagnetic valve 12, capillary tube 13, supplemental heat source heat exchanger the 14, second check valve 15, cross valve 2, gas-liquid separator 9, compressor 1。
Further, described second outdoor heat exchanger 4 is laid on bottom the first outdoor heat exchanger 3, plays super cooling effect in refrigeration cycle;Heat and closed circuit is played by additional heat the effect slowing down frosting and preventing condensed water from freezing。
Further, described supplemental heat source heat exchanger 14 is electric heating refrigeration heater。
Further, described supplemental heat source heat exchanger 14 is heat accumulating type refrigeration heater。
Claims (3)
1. an air source heat pump system, including refrigeration cycle and heat closed circuit, it is characterized in that, described refrigeration cycle is sequentially connected with is constituted by compressor, cross valve, the first outdoor heat exchanger, the first electromagnetic valve, the second outdoor heat exchanger, reservoir, the first expansion valve, indoor heat exchanger, cross valve, gas-liquid separator, compressor;Described heat loop back compressors, cross valve, indoor heat exchanger, the first check valve, reservoir, the second outdoor heat exchanger, the second expansion valve, the first outdoor heat exchanger, cross valve, gas-liquid separator, compressor are sequentially connected with composition;Described second outdoor heat exchanger is laid on bottom the first outdoor heat exchanger, plays super cooling effect in refrigeration cycle;Heat and closed circuit is played by additional heat the effect slowing down frosting and preventing condensed water from freezing;Also including defrosting closed circuit, described defrosting loops back compressors, cross valve, the first outdoor heat exchanger, the second electromagnetic valve, capillary tube, supplemental heat source heat exchanger, the second check valve, cross valve, gas-liquid separator, compressor are sequentially connected with composition。
2. air source heat pump system according to claim 1, it is characterised in that described supplemental heat source heat exchanger is electric heating refrigeration heater。
3. air source heat pump system according to claim 1, it is characterised in that described supplemental heat source heat exchanger is heat accumulating type refrigeration heater。
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CN201310713339.1A CN103712370B (en) | 2013-12-23 | 2013-12-23 | A kind of air source heat pump system |
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CN201310713339.1A CN103712370B (en) | 2013-12-23 | 2013-12-23 | A kind of air source heat pump system |
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CN103712370A CN103712370A (en) | 2014-04-09 |
CN103712370B true CN103712370B (en) | 2016-06-22 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103925743B (en) * | 2014-04-21 | 2016-06-15 | 福建强民空气源自动化科技有限公司 | A kind of novel air source heat pump heat-exchange system |
CN104964481A (en) * | 2015-06-30 | 2015-10-07 | 陈丽红 | High-temperature heat pump unit |
WO2017071289A1 (en) * | 2015-10-27 | 2017-05-04 | 广东美的暖通设备有限公司 | Enhanced vapor injection air conditioning system |
CN107655124B (en) * | 2017-10-23 | 2023-03-14 | 北京建筑大学 | Air source heat pump system of non-interrupted heat supply of defrosting |
CN111426090B (en) * | 2020-03-24 | 2022-09-16 | 青岛海尔空调电子有限公司 | Control device, air-conditioning heat pump system and control method thereof |
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CN203298405U (en) * | 2013-05-20 | 2013-11-20 | 南京迪泽尔空调设备有限公司 | Air source heat pump unit increasing flowing speed of refrigerating fluid |
CN203657271U (en) * | 2013-12-23 | 2014-06-18 | 南京迪泽尔空调设备有限公司 | Air source heat pump system |
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US3916638A (en) * | 1974-06-25 | 1975-11-04 | Weil Mclain Company Inc | Air conditioning system |
EP0492168A2 (en) * | 1990-11-28 | 1992-07-01 | Kabushiki Kaisha Toshiba | Air-conditioning apparatus |
JP2002107008A (en) * | 2000-09-27 | 2002-04-10 | Toshiba Kyaria Kk | Air conditioner |
CN1932417A (en) * | 2005-08-05 | 2007-03-21 | 松下电器产业株式会社 | Air conditioner |
CN102003834A (en) * | 2010-11-23 | 2011-04-06 | 扬州碧源空调设备有限公司 | Multifunctional air source hot water and air conditioning heat pump unit |
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