CN103629842B - A kind of phase change heat pump system - Google Patents
A kind of phase change heat pump system Download PDFInfo
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- CN103629842B CN103629842B CN201310693263.0A CN201310693263A CN103629842B CN 103629842 B CN103629842 B CN 103629842B CN 201310693263 A CN201310693263 A CN 201310693263A CN 103629842 B CN103629842 B CN 103629842B
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Abstract
The invention discloses a kind of phase change heat pump system, form primarily of indoor heat exchanger, circulating pump, fluid reservoir, compressor, throttling arrangement, outdoor heat exchanger, connecting pipe and circuit control part; Described outdoor heat exchanger, throttling arrangement, fluid reservoir, compressor and connecting pipe form an outdoor closed circuit; Described indoor heat exchanger, fluid reservoir, circulating pump and connecting pipe form an indoor circulation loop; Described circuit control part controls the run action of system.This phase change heat pump system can make full use of the effect of evaporimeter and condenser, make in evaporimeter, to be full of liquid to greatest extent and carry out heat absorption evaporation, in condenser, gassy carries out heat release cooling to greatest extent, solve the problem that the utilization ratio of existing evaporimeter and condenser is low, improve heat energy transport efficiency.
Description
Technical field
The invention belongs to technical field of air conditioner refrigeration, be specifically related to a kind of phase change heat pump system.
Background technology
At present, kind of refrigeration cycle technology mainly adopts the inverse circulation in Kano, determines entropic spueezing, the condensation of cold-producing medium isothermal and refrigerant liquid determine entropy four cyclic processes of expanding and form by cold-producing medium isothermal evaporation, refrigerant vapour.Correspondingly, air-conditioning system for Regulate Environment temperature forms primarily of evaporimeter, compressor, injection throttling arrangement and condenser four parts, this air-conditioning system can by isothermal evaporation after the cold-producing medium in evaporimeter and high temperature air heat exchange, compressor compresses refrigerant vapour enters isothermal condensation in condenser, the heat that in condensation process, cold-producing medium carries passes to Cryogenic air, and cold-producing medium has expanded and determined to get back in evaporimeter after entropy expands to repeat above-mentioned circulation in choke valve.Inverse Carnot cycle is desirable reversible refrigeration circulation, and it is made up of two constant temperature process and two adiabatic process.Circulation time, high and low temperature thermal source is constant, refrigeration working medium in condenser and evaporimeter and between thermal source without heat transfer temperature difference, refrigeration working medium flows through in each equipment does not consider any loss, and therefore, inverse Carnot cycle is fluid refrigerating cycle, its coefficient of refrigerating performance is the highest, but engineering cannot realize.It is cold for also having the evaporimeter of existing refrigeration system and a whole fin structure part for condenser to be hot parts, and be not fully utilized, can not carry out heat exchange thoroughly, thus cause the unnecessary waste of electric energy, operation costs remain high.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art existence, for solving the large problem of energy consumption existed in refrigeration system, and provide a kind of structure simple, implement easily, the phase change heat pump system of energy-saving and emission-reduction, enable evaporation and condensation realize isothermal phase change evaporation and isothermal phase change condensation.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of phase change heat pump system, comprises indoor heat exchanger (1), outdoor heat exchanger (2), fluid reservoir (3), compressor (4), throttling arrangement (5), circulating pump (6), connecting pipe and circuit control part, described fluid reservoir (3) comprises four external interfaces, is respectively interface one (31), interface two (32), interface three (33) and interface four (34), interface one (31) and the interface two (32) of described fluid reservoir (3) of described fluid reservoir (3) are positioned at the top of the working media liquid level of fluid reservoir (3), interface three (33) and the interface four (34) of described fluid reservoir (3) of described fluid reservoir (3) are positioned at the bottom of the working media liquid level of fluid reservoir (3), described circulating pump (6) is connected between the interface (33) of indoor heat exchanger (1) and fluid reservoir (3), described compressor (4) is connected between the interface (32) of fluid reservoir (3) and outdoor heat exchanger (2), described throttling arrangement (5) is connected between the interface (34) of fluid reservoir (3) and outdoor heat exchanger (2), described indoor heat exchanger (1), fluid reservoir (3), circulating pump (6) and connecting pipe form an indoor circulation loop, described outdoor heat exchanger (2), throttling arrangement (5), fluid reservoir (3), compressor (4) and connecting pipe form an outdoor closed circuit, the abutment that described fluid reservoir (3) is indoor circulation loop and outdoor closed circuit, it connects two circulations for complete phase change heat pump system, described compressor (4) and throttling arrangement (5) are divided into high pressure isothermal region and low pressure isothermal region described phase change heat pump system, described indoor circulation loop is a low pressure isothermal phase change endothermic process, described outdoor closed circuit is a high pressure isothermal phase change exothermic process, during described phase change heat pump system work, circulating pump (6) delivers to indoor heat exchanger (1) liquid working media from interface three (33) suction of fluid reservoir, indoor heat exchanger (1) contacts with high temperature heat source simultaneously, liquid working media absorbs heat and is gas in low-pressure area isothermal evaporation in indoor heat exchanger (1), the gas that evaporation is formed and the liquid that part is not evaporated mutually are mixed to form gas-liquid two-phase fluid in flow at high speed, they indoor heat exchanger (1) flow back in fluid reservoir (3), the gas-liquid two-phase fluid entering fluid reservoir (3) completes gas-liquid separation in fluid reservoir (3), thus complete indoor circulation, under the suction force effect of compressor (4), gaseous working medium in fluid reservoir (3) enters outdoor heat exchanger (2) by the interface two (32) of fluid reservoir, outdoor heat exchanger (2) contacts with low-temperature heat source simultaneously, gaseous working medium is condensed into liquid by the cooling of low-temperature heat source at higher-pressure region isothermal in outdoor heat exchanger (2), and release heat, the liquid that condensation is formed enters fluid reservoir (3) through throttling arrangement (5), thus completes outdoor circulation, indoor circulation and outdoor circulation are carried out simultaneously, and the gas working dielectric that indoor circulation produces enters outdoor circulation, and the liquid working media that outdoor circulation produces enters indoor circulation, heat are carried to outdoor indoor simultaneously.
The above a kind of phase change heat pump system, also comprises cross valve one (71) and cross valve two (72), and described cross valve one (71) is connected with compressor (4); Described cross valve two (72) is connected with circulating pump (6); Like this by controlling the flow direction of cross valve one (71) and cross valve two (72), reach the order of cooling and warming while of phase change heat pump system.
The above cross valve two (72) and described circulating pump (6) can rotate backward, have the gear pump of two-way conveying function, lobe pump or screw pump and substitute with motor.
The above throttling arrangement (5) is a heating power expansion valve.
The above throttling arrangement (5) is an electric expansion valve (8).
The above throttling arrangement (5) is a capillary (9).
The present invention compared with prior art, solves evaporation and not thorough, the inefficient problem of condensation, and evaporation simultaneously can realize isothermal phase change evaporation and condensation can realize isothermal phase change condensation; Native system working stability, power consumption are less, refrigerating capacity Energy Efficiency Ratio is equivalent to 2 times of traditional air conditioner, are applicable to high-power, long-distance transmissions heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present invention.
Fig. 2 is the structural representation of the second embodiment of the present invention.
Fig. 3 is the structural representation of the third embodiment of the present invention.
Fig. 4 is the structural representation of the 4th kind of embodiment of the present invention.
Fig. 5 is the structural representation of the 5th kind of embodiment of the present invention.
Number in figure: (1) indoor heat exchanger; (2) outdoor heat exchanger; (3) fluid reservoir; (31) interface one of fluid reservoir; (32) interface two of fluid reservoir; (33) interface three of fluid reservoir; (34) interface four of fluid reservoir; (4) compressor; (5) throttling arrangement; (6) circulating pump; (71) cross valve one; (72) cross valve two; (8) electric expansion valve; (9) valve capillary.
Detailed description of the invention
Also be described further by reference to the accompanying drawings below by embodiment.
The main structure of system related to when the present embodiment realizes comprises indoor heat exchanger (1), outdoor heat exchanger (2), fluid reservoir (3), the interface one (31) of fluid reservoir, the interface two (32) of fluid reservoir, the interface three (33) of fluid reservoir, the interface four (34) of fluid reservoir, compressor (4), throttling arrangement (5), circulating pump (6), cross valve one (71), cross valve two (72), electric expansion valve (8), capillary (9), connecting pipe and circuit control part, described indoor heat exchanger (1), fluid reservoir (3), circulating pump (6), cross valve two (72) and connecting pipe form an indoor circulation loop, described outdoor heat exchanger (2), throttling arrangement (5), fluid reservoir (3), compressor (4), cross valve one (71) and connecting pipe form an outdoor closed circuit, the abutment that described fluid reservoir (3) is indoor circulation loop and outdoor closed circuit, it connects two circulations for complete phase change heat pump system, described compressor (4) and throttling arrangement (5) are divided into high pressure isothermal region and low pressure isothermal region described phase change heat pump system, described indoor circulation loop is a low pressure isothermal phase change endothermic process, described outdoor closed circuit is a high pressure isothermal phase change exothermic process.
embodiment one:
The present embodiment is the workflow of the first energy transport, the workflow diagram of a kind of phase change heat pump system as shown in Figure 1, whole system comprises indoor heat exchanger (1), outdoor heat exchanger (2), fluid reservoir (3), the interface one (31) of fluid reservoir, the interface two (32) of fluid reservoir, the interface three (33) of fluid reservoir, the interface four (34) of fluid reservoir, compressor (4), throttling arrangement (5), circulating pump (6), connecting pipe and circuit control part, described indoor heat exchanger (1), fluid reservoir (3), circulating pump (6) and connecting pipe form an indoor circulation loop, described outdoor heat exchanger (2), throttling arrangement (5), fluid reservoir (3), compressor (4) and connecting pipe form an outdoor closed circuit, during the work of this phase change heat pump system, circulating pump (6) delivers to indoor heat exchanger (1) liquid working media from interface three (33) suction of fluid reservoir, indoor heat exchanger (1) contacts with high temperature heat source simultaneously, liquid working media absorbs heat and is gas in low-pressure area isothermal evaporation in indoor heat exchanger (1), the gas that evaporation is formed and the liquid that part is not evaporated mutually are mixed to form gas-liquid two-phase fluid in flow at high speed, they indoor heat exchanger (1) flow back in fluid reservoir (3), the gas-liquid two-phase fluid entering fluid reservoir (3) completes gas-liquid separation in fluid reservoir (3), thus complete indoor circulation, under the suction force effect of compressor (4), gaseous working medium in fluid reservoir (3) enters outdoor heat exchanger (2) by the interface two (32) of fluid reservoir, outdoor heat exchanger (2) contacts with low-temperature heat source simultaneously, gaseous working medium is condensed into liquid by the cooling of low-temperature heat source at higher-pressure region isothermal in outdoor heat exchanger (2), and release heat, the liquid that condensation is formed enters fluid reservoir (3) through throttling arrangement (5), thus completes outdoor circulation, indoor circulation and outdoor circulation are carried out simultaneously, and the gas working dielectric that indoor circulation produces enters outdoor circulation, and the liquid working media that outdoor circulation produces enters indoor circulation, heat are carried to outdoor indoor simultaneously.
embodiment two:
Accompanying drawing 2 is the structural representation of the second embodiment of the present invention, the function of indoor heat exchanger (1) and outdoor heat exchanger (2) in this system is exchanged, namely outdoor heat exchanger (2) plays the effect of evaporimeter, indoor heat exchanger (1) plays the effect of condenser, and the basis of detailed description of the invention one is improved.
Circulating pump (6) is changed into by one-way circulation pump directly can change nyctitropic Bidirectional power electric system (such as Roots's motor), compressor (4) series connection cross valve one (71); Throttling arrangement (5) is electric expansion valve (8); Miscellaneous part is identical with embodiment one, and its start-up and operation process is identical with embodiment one.
When described phase change heat pump system refrigeration, specific works embodiment is identical with detailed description of the invention one.
When described phase change heat pump system heats, circulating pump (6) rotates backward, the exchange function of indoor heat exchanger (1) and outdoor heat exchanger (2) function and embodiment one, described indoor circulation loop is a high pressure isothermal phase change exothermic process, described outdoor closed circuit is a low pressure isothermal phase change endothermic process, HTHP refrigeration working medium is filled in described whole fluid reservoir (3), when this phase change heat pump system heats work, gaseous refrigerant working media in fluid reservoir (3) enters indoor heat exchanger (1) through fluid reservoir interface one (31), indoor heat exchanger (1) contacts with low-temperature heat source, gaseous working medium releases heat in indoor heat exchanger (1) and isothermal is condensed into liquid, the liquid that condensation is formed and part do not have the gas of condensation to enter in fluid reservoir (3) through the interface three (33) of fluid reservoir under the extraction of circulating pump (6), the gas-liquid two-phase fluid entering fluid reservoir (3) completes gas-liquid separation in fluid reservoir (3), thus complete indoor circulation, under the suction force effect of compressor (4), the liquid working media of HTHP in fluid reservoir (3) enters outdoor heat exchanger (2) through electric expansion valve (8), outdoor heat exchanger (2) contacts with high temperature heat source simultaneously, the heating of liquid working media high temperature heat source in outdoor heat exchanger (2) and isothermal evaporation is gaseous state, and absorb heat, the gaseous working medium that evaporation is formed enters fluid reservoir (3) through compressor (4), thus completes outdoor circulation, indoor circulation and outdoor circulation are carried out simultaneously, and the liquid working media that indoor circulation produces enters outdoor circulation, and the gaseous working medium that outdoor circulation produces enters indoor circulation, cold heat are carried to outdoor indoor simultaneously.
embodiment three:
Accompanying drawing 3 is the structural representation of the third embodiment of the present invention, and except substituting except described electric expansion valve (8) with capillary (9), miscellaneous part is identical with embodiment two, and its start-up and operation process is identical with embodiment two.
embodiment four:
Accompanying drawing 4 is the structural representation of the 4th kind of embodiment of the present invention, and circulating pump (6) is one-way circulation pump, in order to change the loop direction of indoor refrigeration working medium, and circulating pump (6) series connection cross valve two (72); Miscellaneous part is identical with embodiment two, and its start-up and operation process is identical with embodiment two.
embodiment five:
Accompanying drawing 5 is the structural representation of the 5th kind of embodiment of the present invention, except substituting described electric expansion valve (8) with capillary (9); Miscellaneous part is identical with embodiment four, and its start-up and operation process is identical with embodiment four.
Claims (5)
1. a phase change heat pump system, it is characterized in that, comprise indoor heat exchanger (1), outdoor heat exchanger (2), fluid reservoir (3), compressor (4), throttling arrangement (5), circulating pump (6), cross valve one (71), cross valve two (72), connecting pipe and circuit control part; Described fluid reservoir (3) comprises four external interfaces, is respectively interface one (31), interface two (32), interface three (33) and interface four (34); Interface one (31) and the interface two (32) of described fluid reservoir (3) of described fluid reservoir (3) are positioned at the top of the working media liquid level of fluid reservoir (3); Interface three (33) and the interface four (34) of described fluid reservoir (3) of described fluid reservoir (3) are positioned at the bottom of the working media liquid level of fluid reservoir (3); Described circulating pump (6) is connected between the interface three (33) of indoor heat exchanger (1) and fluid reservoir (3); Described compressor (4) is connected between the interface two (32) of fluid reservoir (3) and outdoor heat exchanger (2); Described throttling arrangement (5) is connected between the interface four (34) of fluid reservoir (3) and outdoor heat exchanger (2); Described cross valve one (71) is connected with compressor (4); Described cross valve two (72) is connected with circulating pump (6); Like this by controlling the flow direction of cross valve one (71) and cross valve two (72), reach phase change heat pump system cooling and warming object simultaneously; Described indoor heat exchanger (1), fluid reservoir (3), circulating pump (6), cross valve two (72) and connecting pipe form an indoor circulation loop; Described outdoor heat exchanger (2), throttling arrangement (5), fluid reservoir (3), compressor (4), cross valve one (71) and connecting pipe form an outdoor closed circuit; The abutment that described fluid reservoir (3) is indoor circulation loop and outdoor closed circuit, it connects two circulations for complete phase change heat pump system; Described compressor (4) and throttling arrangement (5) are divided into high pressure isothermal region and low pressure isothermal region described phase change heat pump system; Described indoor circulation loop is a low pressure isothermal phase change endothermic process; Described outdoor closed circuit is a high pressure isothermal phase change exothermic process;
During described phase change heat pump system refrigeration work, circulating pump (6) delivers to indoor heat exchanger (1) liquid working media from interface three (33) suction of fluid reservoir, indoor heat exchanger (1) contacts with high temperature heat source simultaneously, liquid working media absorbs heat and is gas in low-pressure area isothermal evaporation in indoor heat exchanger (1), the gas that evaporation is formed and the liquid that part is not evaporated mutually are mixed to form gas-liquid two-phase fluid in flow at high speed, they indoor heat exchanger (1) flow back in fluid reservoir (3), the gas-liquid two-phase fluid entering fluid reservoir (3) completes gas-liquid separation in fluid reservoir (3), thus complete indoor circulation, under the suction force effect of compressor (4), gaseous working medium in fluid reservoir (3) enters outdoor heat exchanger (2) by the interface two (32) of fluid reservoir, outdoor heat exchanger (2) contacts with low-temperature heat source simultaneously, gaseous working medium is condensed into liquid by the cooling of low-temperature heat source at higher-pressure region isothermal in outdoor heat exchanger (2), and release heat, the liquid that condensation is formed enters fluid reservoir (3) through throttling arrangement (5), thus completes outdoor circulation, indoor circulation and outdoor circulation are carried out simultaneously, and the gas working dielectric that indoor circulation produces enters outdoor circulation, and the liquid working media that outdoor circulation produces enters indoor circulation, heat are carried to outdoor indoor simultaneously,
When described phase change heat pump system heats work, the exchange function of indoor heat exchanger (1) and outdoor heat exchanger (2) function and embodiment one; Gaseous refrigerant working media in fluid reservoir (3) enters indoor heat exchanger (1) through fluid reservoir interface one (31), indoor heat exchanger (1) contacts with low-temperature heat source, gaseous working medium releases heat in indoor heat exchanger (1) and isothermal is condensed into liquid, the liquid that condensation is formed and part do not have the gas of condensation to enter in fluid reservoir (3) through the interface three (33) of fluid reservoir under the extraction of circulating pump (6), the gas-liquid two-phase fluid entering fluid reservoir (3) completes gas-liquid separation in fluid reservoir (3), thus completes indoor circulation; Under the suction force effect of compressor (4), the liquid working media of HTHP in fluid reservoir (3) enters outdoor heat exchanger (2) through electric expansion valve (8), outdoor heat exchanger (2) contacts with high temperature heat source simultaneously, the heating of liquid working media high temperature heat source in outdoor heat exchanger (2) and isothermal evaporation is gaseous state, and absorb heat, the gaseous working medium that evaporation is formed enters fluid reservoir (3) through compressor (4), thus completes outdoor circulation; Indoor circulation and outdoor circulation are carried out simultaneously, and the liquid working media that indoor circulation produces enters outdoor circulation, and the gaseous working medium that outdoor circulation produces enters indoor circulation, cold heat are carried to outdoor indoor simultaneously.
2. a kind of phase change heat pump system according to claim 1, is characterized in that, described cross valve two (72) and described circulating pump (6) can rotate backward, have the gear pump of two-way conveying function, lobe pump or screw pump and substitute with motor.
3. a kind of phase change heat pump system according to claim 1, is characterized in that, described throttling arrangement (5) is a heating power expansion valve.
4. a kind of phase change heat pump system according to claim 1, is characterized in that, described throttling arrangement (5) is an electric expansion valve (8).
5. a kind of phase change heat pump system according to claim 1, is characterized in that, described throttling arrangement (5) is a capillary (9).
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| EP3631340B1 (en) * | 2017-05-26 | 2023-11-29 | Alliance for Sustainable Energy, LLC | Systems with multi-circuited, phase-change composite heat exchangers |
| CN108758921A (en) * | 2018-07-05 | 2018-11-06 | 深圳市格瑞英杰科技有限公司 | A kind of efficient refrigeration system of pumping phase transformation cycle |
| CN109945714B (en) * | 2019-04-23 | 2023-07-04 | 深圳市爱能森科技有限公司 | Phase-change energy-storage heat exchange system and water heating method |
| WO2020181899A1 (en) * | 2019-03-11 | 2020-09-17 | 深圳市爱能森科技有限公司 | Phase change energy storage heat exchange system and method for heating water |
| CN109780914B (en) * | 2019-03-11 | 2021-07-06 | 深圳市爱能森科技有限公司 | Phase change energy storage heat exchange system and water heating method |
| CN110879159B (en) * | 2019-12-27 | 2022-11-15 | 长安大学 | High-temperature high-humidity aerosol sampling device and sampling method |
| CN114000158B (en) * | 2021-10-28 | 2023-11-28 | 泰安航天特种车有限公司 | Automatic pickling equipment suitable for steel pipe inner wall |
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