CN104879951A - Non-azeotropic working medium hot pump system with adjustable concentration and running method thereof - Google Patents
Non-azeotropic working medium hot pump system with adjustable concentration and running method thereof Download PDFInfo
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- CN104879951A CN104879951A CN201510259833.4A CN201510259833A CN104879951A CN 104879951 A CN104879951 A CN 104879951A CN 201510259833 A CN201510259833 A CN 201510259833A CN 104879951 A CN104879951 A CN 104879951A
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- azeotropic working
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The invention discloses a non-azeotropic working medium hot pump system with adjustable concentration and a running method thereof. The system mainly includes a compressor, a four-way valve, an outdoor heat exchanger, a flow direction switching device, a component regulating device, a system expansion valve and an indoor heat exchanger. Through arranging the component regulating device, the component separating tank, the corresponding linking pipe and the valve, the quasi-second-grade compression, fluid injection and system working medium concentration adjustment and other functions can be realized. Through the comprehensive application of the non-azeotropic working medium, gas supplementation, and component concentration adjusting technology, the hot pump system can improve the heating amount and COP of the hot pump under the low-temperature condition, improve the seasonal energy efficiency level of the hot pump device, and effectively control the exhaust temperature of the compressor under the low-temperature working condition.
Description
Technical field
The present invention relates to a kind of non-azeotropic working medium heat pump and operation method thereof, particularly relate to the adjustable non-azeotropic working medium heat pump of a kind of concentration and operation method thereof, belong to heat pump air conditioner technical field.
Background technology
China's building energy consumption accounts for 1/3 of social commodities total energy consumption, and wherein, only the heating of northern cities and towns just consumes more than 25% of whole nation building total energy consumption.Meanwhile, along with fast development and the living standards of the people raising of Chinese Urbanization, new heating demands constantly occurs.
China Yangtze river basin is vast in territory, populous.The Yangtze river basin is located in hot summer and warm winter area band, and winter is clammy.Affect by habits and customs, this area's residential housing long term does not use or only uses simple heating means (electric blanket, electric oily spit of fland etc.), and indoor thermal comfort is poor.But along with the fast development of this area's economy, the cry of central heating is surging gradually, is once becoming the topic that the whole people discuss warmly.Research shows: the Yangtze river basin is not suitable for adopting large-scale central heating; Be that the decentralized heating mode of representative has good applicability in this area with air source heat pump.
In addition, in the northern area of China, although it is the central heating mode of thermal source that Urban Areas mainly adopts with cogeneration of heat and power, but the heating systems such as the house of a large amount of non-central heating covering area still uses fire coal, fuel oil, electricity warms up, energy efficiency is low, seriously polluted, become the northern area of China haze in winter etc. and pollute one of important origin cause of formation of weather.Therefore, for reducing environmental pressure, northern area each province and city all promote the alternative project of coal-burning stove for heating, and drug in some provinces is prohibited and used coal-fired decentralized heating.In alternative heating technology, ground/water resource heat pump is large due to place capacity and floor space, is not suitable for residence heating.Gas-heating limits by source of the gas and pipe network, only has good applicability in specific region.Therefore, air source heat pump becomes the important option that northern area (especially cold district) substitutes coal-burning stove for heating.
In fact, air source heat pump (most common form is domestic heat pump air conditioning device) existing to be applied in above-mentioned area early stage, but caused it not use on a large scale due to worst cold case heating capacity deficiency (it is low that user is felt as leaving air temp) and not energy efficient (it is large that user is felt as power consumption).The usefulness that heats improving air source heat pump is key in above-mentioned regional large-scale application.
Improve the effective non-azeotropic working medium internal circulating load of worst cold case, improve the Temperature Matching degree of evaporimeter and condenser, improve non-azeotropic working medium evaporation latent heat, reduce delivery temperature and become the key problem in technology improving air source heat pump Performance And Reliability.
Summary of the invention
The present invention proposes the adjustable non-azeotropic working medium heat pump of a kind of concentration and operation method thereof, by the integrated application of non-azeotropic working medium, tonifying Qi, hydrojet and Component seperation and concentration control technology, heat pump can be improved at the heating capacity of worst cold case and COP, improve the seasonal energy efficiency level of heat pump assembly, and effectively control the delivery temperature of compressor worst cold case.
The present invention proposes following technical scheme:
The non-azeotropic working medium heat pump that a kind of working medium concentration is adjustable, comprise: compressor, cross valve, outdoor heat exchanger, flow to switching device shifter, liquid storage regenerator, system expansion valve and indoor heat exchanger, the described switching device shifter that flows to comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve, arranges reheat coils in described liquid storage regenerator; Exhaust outlet of compressor is connected with cross valve exhaust port; Cross valve outdoor heat exchanger interface is connected with the entrance of the first check valve and the outlet of the second check valve through outdoor heat exchanger; The outlet of the first check valve is connected with the outlet of the 4th check valve; The entrance of the second check valve is connected with the entrance of the 3rd check valve; Cross valve indoor heat exchanger interface is connected with the outlet of the 3rd check valve and the entrance of the 4th check valve through indoor heat exchanger; Liquid storage regenerator liquid outlet is connected with the 3rd one-way valve inlet through system expansion valve; Cross valve air-breathing interface is connected with compressor air suction mouth with reheat coils outlet through reheat coils entrance, reheat coils; It is characterized in that: arrange component regulation device, described component regulation device comprises: choke valve, delivery temperature control valve, gas supply control valve, Component seperation tank, systemic concentration control valve, arranges heat(ing) coil in described Component seperation tank; Component seperation tank entrance is connected with the first one-way valved outlet through choke valve; Component seperation tank gas vent is connected with compressor gas supplementing opening through gas supply control valve; First one-way valved outlet is connected with liquid storage regenerator entrance with heat(ing) coil outlet through heat(ing) coil entrance, heat(ing) coil; Component seperation tank liquid outlet is connected with the 3rd one-way valve inlet through systemic concentration control valve; Arrange delivery temperature controlling brancher, one end of this branch road is connected with the first one-way valved outlet, and the other end is connected with gas supply control valve inlet, and described delivery temperature control valve is arranged on this branch road.
In technique scheme, described compressor is two-stage compressor or accurate split-compressor structure; In described Component seperation tank, can filler be set.
The operation method of the non-azeotropic working medium heat pump that a kind of working medium concentration provided by the invention is adjustable, is characterized in that: this operation method comprises following several operational mode:
A) improve high pressure concentration of component under cooling condition: cross valve power-off, choke valve and gas supply control valve are opened, and delivery temperature control valve and systemic concentration control valve are closed, now, the exhaust of compressor flows through exhaust outlet of compressor successively, cross valve exhaust port and cross valve outdoor heat exchanger interface enter outdoor heat exchanger, high pressure gaseous non-azeotropic working medium flows into the first one-way valve inlet be condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger after, two-way is divided into: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve throttling at the non-azeotropic working medium of the first one-way valved outlet, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, gaseous component enters compressor gas supplementing opening through gas supply control valve and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil through the heat(ing) coil entrance of Component seperation tank, in heat(ing) coil, second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the cold that first via non-azeotropic working medium carries is taken away, the refrigerating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet enters liquid storage regenerator, with after the low temperature suction heat exchange in reheat coils by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after the throttling of system expansion valve, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation is entered in indoor heat exchanger and heat in suction chamber through the 3rd check valve, gasification is successively through cross valve indoor heat exchanger interface after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface and reheat coils entrance enter backheat in reheat coils, enter compressor air suction mouth through reheat coils outlet after the degree of superheat increases further and enter next circulation.
B) improve low pressure concentration of component under cooling condition: cross valve power-off, systemic concentration control valve is opened, and choke valve, delivery temperature control valve and gas supply control valve are closed, now, compressor air-discharging flows through exhaust outlet successively, cross valve exhaust port and cross valve outdoor heat exchanger interface enter outdoor heat exchanger, after high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger, through the first check valve, liquid storage regenerator is entered after heat(ing) coil in Component seperation tank, with after the low temperature suction heat exchange in reheat coils by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after the throttling of system expansion valve, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation is entered in indoor heat exchanger and heat in suction chamber through the 3rd check valve, gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve indoor heat exchanger interface, cross valve air-breathing interface and reheat coils entrance enter backheat in reheat coils, enter compressor air suction mouth through reheat coils outlet after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank, under the heating of heat(ing) coil, keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve and participates in circulation.
C) improve high pressure concentration of component under heating condition: cross valve is energized, choke valve and gas supply control valve are opened, and delivery temperature control valve and systemic concentration control valve are closed, now, compressor air-discharging flows through exhaust outlet of compressor, cross valve exhaust port and cross valve indoor heat exchanger interface successively and enters indoor heat exchanger, high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger, and flows into the 4th one-way valve inlet after indoor heating, at the 4th one-way valved outlet, non-azeotropic working medium is divided into two-way: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component enters compressor gas supplementing opening through gas supply control valve and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil through heat(ing) coil entrance, in heat(ing) coil, the cold that first via non-azeotropic working medium carries is taken away by the second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet enters liquid storage regenerator, with after the low temperature suction heat exchange in reheat coils by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after the throttling of system expansion valve, become low-temp low-pressure two-phase non-azeotropic working medium, enter in outdoor heat exchanger through the second check valve and evaporate pipette, gasification is successively through cross valve outdoor heat exchanger interface after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface and reheat coils entrance enter backheat in reheat coils, enter compressor air suction mouth through reheat coils outlet after the degree of superheat increases further and enter next circulation.
D) improve low pressure concentration of component under heating condition: cross valve is energized, systemic concentration control valve is opened, and choke valve, delivery temperature control valve and gas supply control valve are closed, now, compressor air-discharging flows through exhaust outlet of compressor successively, cross valve exhaust port and cross valve indoor heat exchanger interface enter indoor heat exchanger, high pressure gaseous non-azeotropic working medium is condensed in the liquid non-azeotropic working medium process of HTHP simultaneously to indoor heating in indoor heat exchanger, by the 4th check valve, liquid storage regenerator is entered after heat(ing) coil, with after the low temperature suction heat exchange in reheat coils by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after the throttling of system expansion valve, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation endothermic in outdoor heat exchanger is entered through the second check valve, gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve outdoor heat exchanger interface, cross valve air-breathing interface and reheat coils entrance enter backheat in reheat coils, enter compressor air suction mouth through reheat coils outlet after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank, under the heating of heat(ing) coil, keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve and participates in circulation.
E) under low-temperature heating operating mode, concentration of component regulates: cross valve is energized, and choke valve, delivery temperature control valve, gas supply control valve and systemic concentration control valve are opened, now, compressor air-discharging flows through exhaust outlet of compressor, cross valve exhaust port and cross valve indoor heat exchanger interface successively and enters indoor heat exchanger, high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger, and flows into the 4th one-way valve inlet after indoor heating, three tunnels are divided into: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve throttling at the 4th one-way valved outlet non-azeotropic working medium, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component flows out through Component seperation tank gas vent, after gas supply control valve, directly enter compressor gas supplementing opening after liquid non-azeotropic working medium in second tunnel mixes with the gaseous state non-azeotropic working medium from Component seperation tank gas vent after the direct reducing pressure by regulating flow of delivery temperature control valve becomes two-phase non-azeotropic working medium to participate in circulating, 3rd road non-azeotropic working medium flows into heat(ing) coil through heat(ing) coil entrance, in heat(ing) coil, the cold that first via non-azeotropic working medium carries is taken away by the 3rd road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet enters liquid storage regenerator, with after the low temperature suction heat exchange in reheat coils by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after the throttling of system expansion valve, become low-temp low-pressure two-phase non-azeotropic working medium, enter in outdoor heat exchanger through the second check valve and evaporate pipette, gasification is successively through cross valve outdoor heat exchanger interface after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface and reheat coils entrance enter backheat in reheat coils, enter compressor air suction mouth through reheat coils outlet after the degree of superheat increases further and enter next circulation, meanwhile, the high-low pressure concentration of component non-azeotropic working medium of Component seperation pot bottom flows into system through systemic concentration control valve, realizes the control to systemic circulation non-azeotropic working medium concentration.
The present invention compared with prior art, has the following advantages and the technique effect of high-lighting: 1. use accurate two-stage compression to improve the low-temperature heating performance of heat pump.2. use non-azeotropic working medium to improve the Temperature Matching of evaporimeter and condenser, improve the evaporating temperature of heat pump, reduce condensation temperature, thus improve the seasonal energy efficiency level of heat pump.3. the concentration of component achieving system cloud gray model cold-producing medium controls, worst cold case is by improving the high pressure concentration of component of circulating refrigerant, the heating capacity of raising system, gentle operating mode heats/refrigerating capacity by reducing system high pressure concentration of component reduction system, realizes capacity regulating.4. adopt liquid refrigerant to spray and effectively control compressor exhaust temperature, ensure its Low-Temperature Reliability.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the adjustable non-azeotropic working medium heat pump of concentration that the present invention announces.
Fig. 2 is the normal refrigeration mode of the adjustable non-azeotropic working medium heat pump of concentration that the present invention announces.
Fig. 3 improves high pressure concentration of component operational mode under the adjustable non-azeotropic working medium heat pump conventional refrigerant operating mode of concentration that the present invention announces.
Fig. 4 improves low pressure concentration of component under the adjustable non-azeotropic working medium heat pump conventional refrigerant operating mode of concentration that the present invention announces to promote operational mode.
Fig. 5 is the conventional heating mode of the adjustable non-azeotropic working medium heat pump of concentration that the present invention announces.
Fig. 6 improves high pressure concentration of component operational mode under the adjustable conventional heating condition of non-azeotropic working medium heat pump of concentration that the present invention announces.
Fig. 7 improves low pressure concentration of component operational mode under the adjustable conventional heating condition of non-azeotropic working medium heat pump of concentration that the present invention announces.
Fig. 8 is the adjustable non-azeotropic working medium heat pump low-temperature heating pattern of concentration that the present invention announces.
In figure, each component names is: 1-compressor; 2-cross valve; 3-outdoor heat exchanger; 4-flows to switching device shifter; 41-first check valve; 42-second check valve; 43-the 3rd check valve; 44-the 4th check valve; 5-liquid storage regenerator; 6-system expansion valve; 7-indoor heat exchanger; 8-component regulation device; 81-choke valve; 82-delivery temperature control valve; 83-gas supply control valve; 84-Component seperation tank; 85-systemic concentration control valve; 86-heat(ing) coil; 9-reheat coils.
In figure, each interface name is: 1a-compressor air suction mouth; 1b-exhaust outlet of compressor; 1c-compressor gas supplementing opening; 2a-cross valve exhaust port; 2b-cross valve outdoor heat exchanger interface; 2c-cross valve indoor heat exchanger interface; 2d-cross valve air-breathing interface; 5a-liquid storage regenerator entrance; 5b-liquid storage regenerator liquid outlet; 5c-reheat coils entrance; 5d-reheat coils exports; 84a-Component seperation tank entrance; 84b-Component seperation tank gas vent; 84c-heat(ing) coil entrance; 84d-heat(ing) coil exports; 84e-Component seperation tank liquid outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle assumption diagram of the present invention and the method for operation are described further.
Fig. 1 is the systematic schematic diagram of the adjustable non-azeotropic working medium heat pump of concentration that the present invention announces.This system comprises compressor 1, cross valve 2, outdoor heat exchanger 3, flows to switching device shifter 4, liquid storage regenerator 5, system expansion valve 6 and indoor heat exchanger 7; The described switching device shifter 4 that flows to comprises the first check valve 41, second check valve 42, the 3rd check valve 43 and the 4th check valve 44; In described liquid storage regenerator 5, reheat coils 9 is set; Exhaust outlet of compressor 1b is connected with cross valve exhaust port 2a; Cross valve outdoor heat exchanger interface 2b is connected with the entrance of the first check valve 41 and the outlet of the second check valve 42 through outdoor heat exchanger 3; The outlet of the first check valve 41 is connected with the outlet of the 4th check valve 44; The entrance of the second check valve 42 is connected with the entrance of the 3rd check valve 43; Cross valve indoor heat exchanger interface 2c is connected with the outlet of the 3rd check valve 43 and the entrance of the 4th check valve 44 through indoor heat exchanger 7; Liquid storage regenerator liquid outlet 5b is connected with the 3rd check valve 43 entrance through system expansion valve 6; Cross valve air-breathing interface 2d is connected with compressor air suction mouth 1a with reheat coils outlet 5d through reheat coils entrance 5c, reheat coils 9 successively; This heat pump is also provided with component regulation device 8, described component regulation device 8 comprises: choke valve 81, delivery temperature control valve 82, gas supply control valve 83, Component seperation tank 84 and systemic concentration control valve 85, arranges heat(ing) coil 86 in described Component seperation tank 84; Component seperation tank entrance 84a to export with the first check valve 41 through choke valve 81 and is connected; Component seperation tank gas vent 84b is connected with compressor gas supplementing opening 1c through gas supply control valve 83; First check valve 41 exports and is connected with liquid storage regenerator entrance 5a with heat(ing) coil outlet 84d through heat(ing) coil entrance 84c, heat(ing) coil 86 successively; Component seperation tank liquid outlet 84e is connected with the 3rd check valve 43 entrance through systemic concentration control valve 85; Arrange delivery temperature controlling brancher, one end of this branch road exports with the first check valve 41 and is connected, and the other end is connected with gas supply control valve 83 entrance, and described delivery temperature control valve 82 is arranged on this branch road.
Described compressor adopts two-stage compressor or accurate split-compressor structure.
Arrange filler in described Component seperation tank 84, to increase non-azeotropic working medium gas and liquid heat mass transter area, material can be metal, plastics or paper etc.
Operational mode of the present invention and process as follows:
Refrigeration mode
When user has refrigeration demand, this system cloud gray model is in refrigeration mode.Now system mode as shown in Figure 2.Cross valve 2 power-off, choke valve 81, delivery temperature control valve 82, gas supply control valve 83 and systemic concentration control valve 85 are closed.Now, compressor air-discharging flows through exhaust outlet 1b successively, cross valve exhaust port 2a and cross valve outdoor heat exchanger interface 2b enters outdoor heat exchanger 3, after high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger 3, successively through the first check valve 41, liquid storage regenerator 5 is entered after heat(ing) coil 86, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation is entered in indoor heat exchanger 7 and heat in suction chamber through the 3rd check valve 43, gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve indoor heat exchanger interface 2c, cross valve air-breathing interface 2d and reheat coils entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation.
Process of refrigerastion, as improved the Temperature Matching of refrigerating capacity or adjustment evaporimeter and condenser, realizes by the high pressure concentration of component improving system cloud gray model mixed working fluid.In system, the non-azeotropic working medium of Component seperation tank 84 bottom storage contains higher concentration low pressure component, and therefore its reserves are larger, and system cloud gray model non-azeotropic working medium high pressure concentration of component is higher.Therefore, non-azeotropic working medium is system high pressure concentration of component lifting process from liquid storage regenerator 5 to the transition process of Component seperation tank 84.Now system mode as shown in Figure 3.The concrete method of operation is: cross valve 2 power-off, and choke valve 81 and gas supply control valve 83 are opened, and delivery temperature control valve 82 and systemic concentration control valve 85 are closed, now, the exhaust of compressor flows through exhaust outlet of compressor 1b successively, cross valve exhaust port 2a and cross valve outdoor heat exchanger interface 2b enters outdoor heat exchanger 3, high pressure gaseous non-azeotropic working medium flows into the first check valve 41 entrance be condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger 3 after, the non-azeotropic working medium exported at the first check valve 41 is divided into two-way: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve 81 throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, gaseous component enters compressor gas supplementing opening 1c through gas supply control valve 83 and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil 86 through heat(ing) coil entrance 84c, in heat(ing) coil 86, second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the cold that first via non-azeotropic working medium carries is taken away, the refrigerating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank 84 simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet 84d enters liquid storage regenerator 5, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation is entered in indoor heat exchanger 7 and heat in suction chamber through the 3rd check valve 43, gasification is successively through cross valve indoor heat exchanger interface 2c after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface 2d and reheat coils entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation.
Process of refrigerastion, as reduced the Temperature Matching of refrigerating capacity or adjustment evaporimeter and condenser, realizes by the low pressure concentration of component improving system cloud gray model mixed working fluid.Now only need by store in Component seperation tank 84 the liquid non-azeotropic working medium of high-low pressure concentration of component put into system.Now system mode as shown in Figure 4.The concrete method of operation is: cross valve 2 power-off, and systemic concentration control valve 85 is opened, and choke valve 81, delivery temperature control valve 82 and gas supply control valve 83 are closed, now, compressor air-discharging flows through exhaust outlet 1b successively, cross valve exhaust port 2a and cross valve outdoor heat exchanger interface 2b enters outdoor heat exchanger 3, after high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger 3, through the first check valve 41, liquid storage regenerator 5 is entered after heat(ing) coil 86 in Component seperation tank, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation is entered in indoor heat exchanger 7 and heat in suction chamber through the 3rd check valve 43, gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve indoor heat exchanger interface 2c, cross valve air-breathing interface 2d and reheat coils entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank 84, under the heating of heat(ing) coil 86, keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve 85 and participates in circulation.
Heating mode
When user has heating needs and environment temperature is higher, this system cloud gray model is in conventional heating mode.Now system mode as shown in Figure 5.Cross valve 2 is charged, and choke valve 81, delivery temperature control valve 82, gas supply control valve 83 and systemic concentration control valve 85 are closed.Now, compressor air-discharging flows through exhaust outlet 1b successively, cross valve exhaust port 2a and cross valve indoor heat exchanger interface 2c enters indoor heat exchanger 7, high pressure gaseous non-azeotropic working medium is condensed in the liquid non-azeotropic working medium process of HTHP simultaneously to indoor heating in indoor heat exchanger 7, by the 4th check valve 44, liquid storage regenerator 5 is entered after heat(ing) coil 86, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation endothermic in outdoor heat exchanger 3 is entered through the second check valve 42, gasification is successively through cross valve outdoor heat exchanger interface 2b after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface 2d and reheat coils entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation.
Heating operations, as improved the Temperature Matching of refrigerating capacity or adjustment evaporimeter and condenser, realizes by the high pressure concentration of component improving system cloud gray model mixed working fluid.In system, the non-azeotropic working medium of Component seperation tank 84 bottom storage contains higher concentration low pressure component, and therefore its reserves are larger, and system cloud gray model non-azeotropic working medium high pressure concentration of component is higher.Therefore, non-azeotropic working medium is system high pressure concentration of component lifting process from liquid storage regenerator 5 to the transition process of Component seperation tank 84.Now system mode as shown in Figure 6.The concrete method of operation is: cross valve 2 is energized, and choke valve 81 and gas supply control valve 83 are opened, and delivery temperature control valve 82 and systemic concentration control valve 85 are closed, now, compressor air-discharging flows through exhaust outlet of compressor 1b, cross valve exhaust port 2a successively and cross valve indoor heat exchanger interface 2c enters indoor heat exchanger 7, high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger 7, and flows into the 4th check valve 44 entrance after indoor heating, export at the 4th check valve 44, non-azeotropic working medium is divided into two-way: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve 81 throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component enters compressor gas supplementing opening 1c through gas supply control valve 83 and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil 86 through heat(ing) coil entrance 84c, in heat(ing) coil 86, the cold that first via non-azeotropic working medium carries is taken away by the second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank 84 simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet 84d enters liquid storage regenerator 5, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, enter in outdoor heat exchanger 3 through the second check valve 42 and evaporate pipette, gasification is successively through cross valve outdoor heat exchanger interface 2b after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface 2d and hot coil entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation.
Heating operations, as reduced the Temperature Matching of heating capacity or adjustment evaporimeter and condenser, realizes by the low pressure concentration of component improving system cloud gray model mixed working fluid.Now only liquid for the high-low pressure concentration of component stored in Component seperation tank 84 non-azeotropic working medium need be put into system.Similarly, when system low-voltage concentration of component reaches requirement, systematic evaluation returns conventional heating mode.Now system mode as shown in Figure 7.The concrete method of operation is: cross valve 2 is energized, and systemic concentration control valve 85 is opened, and choke valve 81, delivery temperature control valve 82 and gas supply control valve 83 are closed, now, compressor air-discharging flows through exhaust outlet of compressor 1b successively, cross valve exhaust port 2a and cross valve indoor heat exchanger interface 2c enters indoor heat exchanger 7, high pressure gaseous non-azeotropic working medium is condensed in the liquid non-azeotropic working medium process of HTHP simultaneously to indoor heating in indoor heat exchanger 7, by the 4th check valve 44, liquid storage regenerator 5 is entered after heat(ing) coil 86, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation endothermic in outdoor heat exchanger 3 is entered through the second check valve 42, gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve outdoor heat exchanger interface 2b, cross valve air-breathing interface 2d and reheat coils entrance 5c enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank 84, under the heating of heat(ing) coil 86, keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve 85 and participates in circulation.
Low-temperature heating pattern
When user has heating needs and environment temperature is lower, this system cloud gray model is in low-temperature heating pattern.Now system mode as shown in Figure 8.Under comparatively low ambient temperature, system significantly need promote heating capacity and efficiency level, now not only needs to open accurate two-stage compression circulation (tonifying Qi), and needs controlled circulation non-azeotropic working medium concentration to be in optimum level.In addition, also need the delivery temperature controlling compressor to ensure the safe operation of system.
The concrete method of operation is: cross valve 2 is energized, and choke valve 81, delivery temperature control valve 82, gas supply control valve 83 and systemic concentration control valve 85 are opened, now, compressor air-discharging flows through exhaust outlet of compressor 1b, cross valve exhaust port 2a successively and cross valve indoor heat exchanger interface 2c enters indoor heat exchanger 7, high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger 7, and flows into the 4th check valve 44 entrance after indoor heating, export non-azeotropic working medium at the 4th check valve 44 and be divided into three tunnels: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve 81 throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component flows out through Component seperation tank gas vent 84b, liquid non-azeotropic working medium in second tunnel directly enters compressor gas supplementing opening 1c after mixing with the gaseous state non-azeotropic working medium from Component seperation tank gas vent 84b after the direct reducing pressure by regulating flow of delivery temperature control valve 82 becomes two-phase non-azeotropic working medium and participates in circulating after gas supply control valve 83, 3rd road non-azeotropic working medium flows into heat(ing) coil 86 through heat(ing) coil entrance 84c, in heat(ing) coil 86, the cold that first via non-azeotropic working medium carries is taken away by the 3rd road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank 84 simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet 84d enters liquid storage regenerator 5, with after the low temperature suction heat exchange in reheat coils 9 by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve 6 throttling, become low-temp low-pressure two-phase non-azeotropic working medium, enter in outdoor heat exchanger 3 through the second check valve 42 and evaporate pipette, gasification is successively through cross valve outdoor heat exchanger interface 2b after low-temp low-pressure gaseous state non-azeotropic working medium, the reheat coils entrance 5c of cross valve air-breathing interface 2d and liquid storage regenerator enters backheat in reheat coils 9, enter compressor air suction mouth 1a through reheat coils outlet 5d after the degree of superheat increases further and enter next circulation, meanwhile, the high-low pressure concentration of component non-azeotropic working medium bottom Component seperation tank 84 flows into system through systemic concentration control valve 85, realizes the control to systemic circulation non-azeotropic working medium concentration.
Claims (4)
1. the non-azeotropic working medium heat pump that concentration is adjustable, this system comprises compressor (1), cross valve (2), outdoor heat exchanger (3), flows to switching device shifter (4), liquid storage regenerator (5), system expansion valve (6) and indoor heat exchanger (7); The described switching device shifter (4) that flows to comprises the first check valve (41), the second check valve (42), the 3rd check valve (43) and the 4th check valve (44); In described liquid storage regenerator (5), reheat coils (9) is set; Exhaust outlet of compressor (1b) is connected with cross valve exhaust port (2a); Cross valve outdoor heat exchanger interface (2b) is connected with the entrance of the first check valve (41) and the outlet of the second check valve (42) through outdoor heat exchanger (3); The outlet of the first check valve (41) is connected with the outlet of the 4th check valve (44); The entrance of the second check valve (42) is connected with the entrance of the 3rd check valve (43); Cross valve indoor heat exchanger interface (2c) is connected with the outlet of the 3rd check valve (43) and the entrance of the 4th check valve (44) through indoor heat exchanger (7); Liquid storage regenerator liquid outlet (5b) is connected with the 3rd check valve (43) entrance through system expansion valve (6); Cross valve air-breathing interface (2d) is connected with compressor air suction mouth (1a) with reheat coils outlet (5d) through reheat coils entrance (5c), reheat coils (9) successively; It is characterized in that: this heat pump is also provided with component regulation device (8), described component regulation device (8) comprising: choke valve (81), delivery temperature control valve (82), gas supply control valve (83), Component seperation tank (84) and systemic concentration control valve (85), arranges heat(ing) coil (86) in described Component seperation tank (84); Component seperation tank entrance (84a) to export with the first check valve (41) through choke valve (81) and is connected; Component seperation tank gas vent (84b) is connected with compressor gas supplementing opening (1c) through gas supply control valve (83); First check valve (41) outlet is connected with liquid storage regenerator entrance (5a) with heat(ing) coil outlet (84d) through heat(ing) coil entrance (84c), heat(ing) coil (86) successively; Component seperation tank liquid outlet (84e) is connected with the 3rd check valve (43) entrance through systemic concentration control valve (85); Arrange delivery temperature controlling brancher, one end of this branch road exports with the first check valve (41) and is connected, and the other end is connected with gas supply control valve (83) entrance, and described delivery temperature control valve (82) is arranged on this branch road.
2. the non-azeotropic working medium heat pump that a kind of concentration according to claim 1 is adjustable, is characterized in that: described compressor adopts two-stage compressor or accurate split-compressor structure.
3. the non-azeotropic working medium heat pump that a kind of concentration according to claim 1 is adjustable, is characterized in that: arrange filler in described Component seperation tank (84).
4. an operation method for the non-azeotropic working medium heat pump adopting the concentration of system as claimed in claim 1 adjustable, is characterized in that this operation method comprises following several operational mode:
A) high pressure concentration of component is improved under cooling condition: cross valve (2) power-off, choke valve (81) and gas supply control valve (83) are opened, and delivery temperature control valve (82) and systemic concentration control valve (85) are closed, now, compressor air-discharging flows through exhaust outlet of compressor (1b) successively, cross valve exhaust port (2a) and cross valve outdoor heat exchanger interface (2b) enter outdoor heat exchanger (3), high pressure gaseous non-azeotropic working medium flows into the first check valve (41) entrance be condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger (3) after, the non-azeotropic working medium exported at the first check valve (41) is divided into two-way: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve (81) throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, gaseous component enters compressor gas supplementing opening (1c) through gas supply control valve (83) and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil (86) through heat(ing) coil entrance (84c), in heat(ing) coil (86), second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the cold that first via non-azeotropic working medium carries is taken away, the refrigerating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank (84) simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet (84d) enters liquid storage regenerator (5), with after the low temperature suction heat exchange in reheat coils (9) by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve (6) throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation in indoor heat exchanger (7) is entered and heat in suction chamber through the 3rd check valve (43), gasification is successively through cross valve indoor heat exchanger interface (2c) after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface (2d) and reheat coils entrance (5c) enter backheat in reheat coils (9), enter compressor air suction mouth (1a) through reheat coils outlet (5d) after the degree of superheat increases further and enter next circulation,
B) low pressure concentration of component is improved under cooling condition: cross valve (2) power-off, systemic concentration control valve (85) is opened, and choke valve (81), delivery temperature control valve (82) and gas supply control valve (83) are closed, now, compressor air-discharging flows through exhaust outlet (1b) successively, cross valve exhaust port (2a) and cross valve outdoor heat exchanger interface (2b) enter outdoor heat exchanger (3), after high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in outdoor heat exchanger (3), through the first check valve (41), liquid storage regenerator (5) is entered after heat(ing) coil (86), with after the low temperature suction heat exchange in reheat coils (9) by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve (6) throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation in indoor heat exchanger (7) is entered and heat in suction chamber through the 3rd check valve (43), gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve indoor heat exchanger interface (2c), cross valve air-breathing interface (2d) and reheat coils entrance (5c) enter backheat in reheat coils (9), enter compressor air suction mouth (1a) through reheat coils outlet (5d) after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank (84), under the heating of heat(ing) coil (86), keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve (85) and participates in circulation,
C) high pressure concentration of component is improved under heating condition: cross valve (2) is energized, choke valve (81) and gas supply control valve (83) are opened, and delivery temperature control valve (82) and systemic concentration control valve (85) are closed, now, compressor air-discharging flows through exhaust outlet of compressor (1b), cross valve exhaust port (2a) and cross valve indoor heat exchanger interface (2c) successively and enters indoor heat exchanger (7), high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger (7), and flows into the 4th check valve (44) entrance after indoor heating, in the 4th check valve (44) outlet, non-azeotropic working medium is divided into two-way: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve (81) throttling, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component enters compressor gas supplementing opening (1c) through gas supply control valve (83) and participates in circulation, second road non-azeotropic working medium flows into heat(ing) coil (86) through heat(ing) coil entrance (84c), in heat(ing) coil (86), the cold that first via non-azeotropic working medium carries is taken away by the second road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank (84) simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet (84d) enters liquid storage regenerator (5), with after the low temperature suction heat exchange in reheat coils (9) by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve (6) throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation pipette in the second check valve (42) enters outdoor heat exchanger (3), gasification is successively through cross valve outdoor heat exchanger interface (2b) after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface (2d) and reheat coils entrance (5c) enter backheat in reheat coils (9), enter compressor air suction mouth (1a) through reheat coils outlet (5d) after the degree of superheat increases further and enter next circulation,
D) low pressure concentration of component is improved under heating condition: cross valve (2) is energized, systemic concentration control valve (85) is opened, and choke valve (81), delivery temperature control valve (82) and gas supply control valve (83) are closed, now, compressor air-discharging flows through exhaust outlet of compressor (1b) successively, cross valve exhaust port (2a) and cross valve indoor heat exchanger interface (2c) enter indoor heat exchanger (7), high pressure gaseous non-azeotropic working medium is condensed in the liquid non-azeotropic working medium process of HTHP simultaneously to indoor heating in indoor heat exchanger (7), by the 4th check valve (44), liquid storage regenerator (5) is entered after heat(ing) coil (86), with after the low temperature suction heat exchange in reheat coils (9) by excessively cold, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve (6) throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation endothermic in the second check valve (42) enters outdoor heat exchanger (3), gasification is for after low-temp low-pressure gaseous state non-azeotropic working medium, successively through cross valve outdoor heat exchanger interface (2b), cross valve air-breathing interface (2d) and reheat coils entrance (5c) enter backheat in reheat coils (9), enter compressor air suction mouth (1a) through reheat coils outlet (5d) after the degree of superheat increases further and enter next circulation, meanwhile, Component seperation tank (84), under the heating of heat(ing) coil (86), keeps intermediate pressure, under pressure reduction promotes, high-low pressure concentration of component non-azeotropic working medium flows into system through systemic concentration control valve (85) and participates in circulation,
E) under low-temperature heating operating mode, concentration of component regulates: cross valve (2) is energized, and choke valve (81), delivery temperature control valve (82), gas supply control valve (83) and systemic concentration control valve (85) are opened, now, compressor air-discharging flows through exhaust outlet of compressor (1b), cross valve exhaust port (2a) and cross valve indoor heat exchanger interface (2c) successively and enters indoor heat exchanger (7), high pressure gaseous non-azeotropic working medium is condensed into the liquid non-azeotropic working medium of HTHP in indoor heat exchanger (7), and flows into the 4th check valve (44) entrance after indoor heating, three tunnels are divided into: first via non-azeotropic working medium becomes middle pressure two-phase non-azeotropic working medium after choke valve (81) throttling at the 4th check valve (44) outlet non-azeotropic working medium, liquid phase is rich in low pressure component and gas phase is rich in high pressure component, liquid phase component is stored at the bottom of tank, and gaseous component flows out through Component seperation tank gas vent (84b), liquid non-azeotropic working medium in second tunnel directly enters compressor gas supplementing opening (1c) after mixing with the gaseous state non-azeotropic working medium from Component seperation tank gas vent (84b) after the direct reducing pressure by regulating flow of delivery temperature control valve (82) becomes two-phase non-azeotropic working medium and participates in circulating after gas supply control valve (83), 3rd road non-azeotropic working medium flows into heat(ing) coil (86) through heat(ing) coil entrance (84c), in heat(ing) coil (86), the cold that first via non-azeotropic working medium carries is taken away by the 3rd road non-azeotropic working medium and the heat exchange of first via non-azeotropic working medium, the heating capacity of raising system and efficiency level, improve its Component seperation purity by carrying out heating to the liquid non-azeotropic working medium in Component seperation tank (84) simultaneously, the cold non-azeotropic working medium of mistake flowed out from heat(ing) coil outlet (84d) enters liquid storage regenerator (5), with after the low temperature suction heat exchange in reheat coils (9) by excessively cold further, flowed out by bottom, the cold non-azeotropic working medium of mistake flowed out is after system expansion valve (6) throttling, become low-temp low-pressure two-phase non-azeotropic working medium, evaporation pipette in the second check valve (42) enters outdoor heat exchanger (3), gasification is successively through cross valve outdoor heat exchanger interface (2b) after low-temp low-pressure gaseous state non-azeotropic working medium, cross valve air-breathing interface (2d) and reheat coils entrance (5c) enter backheat in reheat coils (9), enter compressor air suction mouth (1a) through reheat coils outlet (5d) after the degree of superheat increases further and enter next circulation, meanwhile, the high-low pressure concentration of component non-azeotropic working medium of Component seperation tank (84) bottom flows into system through systemic concentration control valve (85), realizes the control to systemic circulation non-azeotropic working medium concentration.
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| CN110579043A (en) * | 2019-08-01 | 2019-12-17 | 广东工业大学 | Heat pump system capable of regulating non-azeotropic refrigerant and system optimization method |
| CN114264041A (en) * | 2017-08-31 | 2022-04-01 | 广东美的制冷设备有限公司 | Air conditioner and energy efficiency calculation method and system thereof |
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| CN104879951B (en) | 2017-04-19 |
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