CN101413739A - Double-effect heat pump circulation three-effect heat exchanger - Google Patents

Double-effect heat pump circulation three-effect heat exchanger Download PDF

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Publication number
CN101413739A
CN101413739A CNA2008100071995A CN200810007199A CN101413739A CN 101413739 A CN101413739 A CN 101413739A CN A2008100071995 A CNA2008100071995 A CN A2008100071995A CN 200810007199 A CN200810007199 A CN 200810007199A CN 101413739 A CN101413739 A CN 101413739A
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heat
heat exchanger
pump
heat pump
effect
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杜钢
吴雅琪
吴安伟
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吴雅琪
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Abstract

Double-effect heat pump circulation three-effect heat exchanger is a kind of air source cooling-and-warming heat pump circular chamber external heat exchanger and frost prevention, enhancing cooling and warming usefulness, energy saver.It mainly solves the problem of a large amount of additional electrical energy of defrosting auxiliary electro-heat device consumption of the central outdoor heat exchanger of existing air source heat pump circulatory system winter operation.It the heat pump outdoor heat exchanger be designed to be among the same cold-producing medium thermodynamics heat pump cycle loop freeze respectively simultaneously (heat absorption) in the middle of two different flow processs, the parts of the flow process of dispelling the heat, and on cold-producing medium thermodynamic cycle flow process, communicate with each other, be closely connected mutually, take place the reciprocal effect effect, carrying out the set of the multipurpose multifunctional operating system of heat exchange to each other by air and fin.With heat pump by environment at the bottom of the grade heat mode that adds the hot-air air intake reduce the possibility that heats the frosting of circulation time outdoor heat exchanger when heat pump in the winter time, improve heat pump input utilization rate of electrical and heat pump absorbing environmental heat energy utilization rate.

Description

Double-effect heat pump circulation three-effect heat exchanger
Technical field
The present invention relates to a kind of air source cooling-and-warming heat pump circular chamber external heat exchanger and frost prevention thereof, enhancing cooling and warming usefulness, energy saver.
Background technology
At present, most air source heat pump heating recycle system often causes its outdoor heat exchanger surface frosting because environment temperature is low excessively, relative humidity is too high when heating circulation in the winter time.As can not effectively preventing and remove, the frost layer increases the blocked up heat exchanger heat transfer coefficient that then causes and descends rapidly, causes the COP performance decline of whole heat pump to worsen, and rate of energy reduces.Now, the patented technology of the similar applications that has had is to adopt electrical auxiliary heater, combustion (oil) hot-air heater, solar heater additional heat to be provided for the heat pump outdoor heat exchanger, to reach the purpose to heat exchanger defrosting or minimizing frosting.These prior aries only provide the measure that makes outdoor heat exchanger lack frosting, still, do not have to solve in order to prevent the circumscribed problem of period at sunshine of a large amount of electric energy of frosting and additive decrementation, the assisted gas energy and solar energy.One of original purpose that prevents and eliminate frosting will improve the Energy Efficiency Ratio COP coefficient of heat pump cycle exactly, and existing similar techniques does not reach whole original intentions of this target.
Summary of the invention
Environment temperature is low excessively in the winter time in order to make the air source heat pump circulatory system, its outdoor heat exchanger is not easy frosting or reduces the possibility and the extent of injury of its frosting under the too high condition of relative humidity, invention has designed a kind of " double-effect heat pump circulation three-effect heat exchanger " and " heat-pump-type defrosting economic benefits and social benefits finned heat exchanger " thereof, under the prerequisite that does not additionally increase the energy resource consumption of electric energy or combustion (oil) gas, the mode of utilizing heat pump techniques to add the hot-air air intake by the low grade heat energy of surrounding air prevents that effectively heat pump circulating system is low excessively in environment temperature, its outdoor heat exchanger frosting or reduce the possibility and the extent of injury of its frosting under the too high condition of relative humidity, assurance heat pump thermal cycle in winter is turned round normally and efficiently, improves the heat energy and the year round cooling of the whole air source heat pump circulatory system and heats the circulation utilization rate of electrical.
The technical problem that solves
The present invention mainly solves the circumscribed problem of period at sunshine of defrosting auxiliary electro-heat device, combustion (oil) hot-air heater, a large amount of additional electrical energy of solar heater consumption, the assisted gas energy and the solar energy of the central outdoor heat exchanger of existing air source heat pump circulatory system winter operation.By " double-effect heat pump circulation three-effect heat exchanger " of the present invention, under the situation of the paid energy of additive decrementation not, can obtain more low grade heat energy in the middle of the surrounding air with the reduction of outdoor environment temperature is used for defrosting or prevents frosting, the electric energy and combustion (oil) the gas additive decrementation of reduction whole system turn round normally and efficiently to guarantee heat pump thermal cycle in winter; Simultaneously, improve the heat energy and the year round cooling of the whole air source refrigerating heat pump circulatory system and heat the circulation utilization rate of electrical.
The technical solution adopted for the present invention to solve the technical problems: one, according to thermodynamics heat pump work principle: extract in the past the conventional heat pump techniqueflow in the middle of the relatively low liquid refrigerant of temperature and think useless, not busy surplus a large amount of low grade heat energies; Two, again according to heat transfer principle: heat is transmitted to low by height; Three, aerothermodynamics: frosting with environment temperature reduce, relative humidity increases and be easy to generate.Utilize this three principles, air intake air themperature by making up the outdoor heat exchanger (this moment is as " evaporimeter ") that a kind of efficient " double-effect heat pump circulation three-effect heat exchanger " just can effectively improve the air source heat pump thermal cycle, reduce the air intake relative air humidity and be controlled in certain scope that is not easy frosting, make the outdoor heat exchanger of air source heat pump thermal cycle reduce the possibility minimizing of heat transfer efficiency because of frosting.Applied thermodynamics of the present invention, aerothermodynamics and heat transfer principle have been developed a kind of double-effect heat pump circulation three-effect heat exchanger and heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (seeing accompanying drawing Fig. 1) thereof.It has changed the loop structure and the single heat transfer type of the non-cold instant heating of conventional air source heat pump outdoor heat exchanger, the heat pump outdoor heat exchanger is designed to freeze respectively simultaneously (heat absorption) in the middle of two different flow processs that are among the same cold-producing medium thermodynamics heat pump cycle loop, the parts of the flow process of dispelling the heat, and on the flow process of cold-producing medium thermodynamic cycle, communicate with each other, be closely connected mutually, take place the reciprocal effect effect, carrying out the set of the multipurpose multifunctional operating system of heat transfer exchange to each other by air and fin.
Its technical pattern feature:
1. when heating state of cyclic operation, it freezes respectively (heat absorption) in the middle of the heat pump outdoor heat exchanger being designed to two different flow processs that are among the same cold-producing medium thermodynamics heat pump cycle loop simultaneously, the parts of the flow process of dispelling the heat, and on the flow process of cold-producing medium thermodynamic cycle, communicate with each other, be closely connected mutually, take place the reciprocal effect effect, carrying out the set of the multipurpose multifunctional operating system of heat transfer exchange to each other by air and fin.(seeing accompanying drawing Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 8)
2. when heating the operating mode of circulation for double-effect heat pump circulation three-effect heat exchanger in system, outside low temperature (T 0, Φ 0) the air approach axis is at first to pass with the parallel connected heat-pump-type of conventional finned heat exchanger (9) defrosting economic benefits and social benefits finned heat exchangers (8) " ABCD " surface to make (38~47 ℃) HTHP saturated (vapour) liquid refrigerant that indoor condenser discharges that is derived from its pipeline that passes through further cool to the liquid saturated supercooled state of the cryogenic high pressure that approaches outdoor environment temperature, meanwhile, its " not busy surplus " heat that discharges [arrives T to outdoor air intake air heat 1(〉 T 0), Φ 1(<Φ 0)] after contact with conventional finned heat exchanger (9) " CDEF " surface again and pass through.(seeing accompanying drawing Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 8)
3. in the assembly heat-pump-type of two heat pump circulation three-effect heat exchanger main bodys (1) defrosting economic benefits and social benefits finned heat exchangers (8) pipeline in fluid media (medium) and conventional finned heat exchanger (9) pipeline fluid media (medium) be identical and be communicated with, and interknit, reciprocation has influence on conventional finned heat exchanger (9) in the heat pump cycle, and (being " evaporimeter " this moment) always recepts the caloric.(seeing accompanying drawing Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 8)
4. when heating the operating mode of circulation for double-effect heat pump circulation three-effect heat exchanger in system, when the heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) in its combination absorb by the surrounding air low grade heat energy as the outer surface defrosting air heater of conventional finned heat exchanger (9) with heat pump techniques, also as heat pump circulating system high pressure liquid refrigerant subcooler.(seeing accompanying drawing Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 8)
For double-effect heat pump circulation three-effect heat exchanger when the operating mode of system's kind of refrigeration cycle, the heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) in its combination are as system's (liquid state) cold-producing medium subcooler, system refrigerant reservoir.(seeing accompanying drawing Fig. 5, Fig. 7, Fig. 9)
6. the heat pump of double-effect heat pump circulation three-effect heat exchanger heats circulation process loop typical structure merely:
The outlet that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to the import heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) and is connected to expansion valve (throttling arrangement) (3) and is connected to conventional finned heat exchanger (9) and is connected to cold-producing medium turnover tracheae (6), constitutes cold-producing medium from the loop that heat circulation process of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to conventional finned heat exchanger (9).(seeing accompanying drawing Fig. 3)
7. one of key loop structure of the control cooling/warming system circulation process of double-effect heat pump circulation three-effect heat exchanger:
1. heat circulation: liquid refrigerant turnover pipe (10) is connected to the import of following check valve (11), be connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) by following check valve (11) outlet, the outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) and is connected to expansion valve feed tube (4) and is connected to expansion valve (throttling arrangement) (14) and is connected to conventional finned heat exchanger (9) and is connected to cold-producing medium turnover tracheae (6), constitutes cold-producing medium from the loop that heat circulation process of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to conventional finned heat exchanger (9).(seeing accompanying drawing Fig. 4)
2. kind of refrigeration cycle: cold-producing medium turnover tracheae (6) is connected to conventional finned heat exchanger (9) and is connected to the import that conventional finned heat exchanger drain pipe (3) is connected to top check valve (11), outlet by top check valve (11) connects the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8), the outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) are connected to middle check valve (11), outlet by the check valve (11) of centre is connected to liquid refrigerant turnover pipe (10), constitute cold-producing medium from conventional finned heat exchanger (9) to the kind of refrigeration cycle flow process condenser of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and the loop of subcooler.(seeing accompanying drawing Fig. 5)
8. two of the key loop structure of the control cooling/warming system circulation process of double-effect heat pump circulation three-effect heat exchanger:
1. heat circulation: one of three interfaces that are connected to two-position three way magnetic valve (14) that liquid refrigerant inlet/outlet pipe (10) is connected to the interface of two-position three way magnetic valve (14) are connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8); The outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) and is connected to expansion valve feed tube (4) and is connected to expansion valve (throttling arrangement) (16) and is connected to conventional finned heat exchanger (9) and is connected to cold-producing medium turnover tracheae (6), consists of the loop that heat circulation process of cold-producing medium from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to conventional finned heat exchanger (9). (seeing accompanying drawing Fig. 6)
2. kind of refrigeration cycle: cold-producing medium turnover tracheae (6) is connected to conventional finned heat exchanger (9) and is connected to the import that conventional finned heat exchanger drain pipe (3) is connected to check valve (15), outlet by check valve (15) is connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8), the outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) be connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) be connected to two-position three way magnetic valve (14) interface two be connected to two-position three way magnetic valve (14) interface three be connected to liquid refrigerant turnover pipe (10), constitute cold-producing medium from conventional finned heat exchanger (9) to the kind of refrigeration cycle flow process condenser of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and the loop of subcooler.(seeing accompanying drawing Fig. 7)
9.. three of the key loop structure of the control cooling/warming system circulation process of double-effect heat pump circulation three-effect heat exchanger:
1. heat circulation:liquid refrigerant inlet/outlet pipe (10) be connected to one of interface of four-way change-over valve (15) be connected to four-way change-over valve (15) interface two be connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8); The outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to three four being connected to expansion valve feed tube (4) and being connected to expansion valve (throttling arrangement) (17) and being connected to conventional finned heat exchanger (9) and being connected to cold-producing medium turnover tracheae (6) of interface that are connected to four-way change-over valve (15) that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) are connected to the interface of four-way change-over valve (15), consists of the loop that heat circulation process of cold-producing medium from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to conventional finned heat exchanger (9). (seeing accompanying drawing Fig. 8)
2. kind of refrigeration cycle: cold-producing medium turnover tracheae (6) is connected to conventional finned heat exchanger (9) and is connected to the import that conventional finned heat exchanger drain pipe (3) is connected to check valve (16), be connected to by the outlet of check valve (16) four-way change-over valve (15) interface four be connected to four-way change-over valve (15) interface two be connected to the import that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) are connected to heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8), the outlet of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) is connected to one of three interfaces that are connected to four-way change-over valve (15) that heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) are connected to the interface of four-way change-over valve (15) and is connected to liquid refrigerant turnover pipe (10), constitute cold-producing medium from conventional finned heat exchanger (9) to the kind of refrigeration cycle flow process condenser of heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and the loop of subcooler.(seeing accompanying drawing Fig. 9)
The invention has the beneficial effects as follows, compare with outdoor electrical auxiliary heater of the defrosting of similar applications and combustion (oil) hot-air heater, circulate in when preventing the frosting of air source heat pump circular chamber external heat exchanger surface by double-effect heat pump, make full use of the not busy surplus useless relatively low value heat energy of conventional air source heat pump circular chamber inner condenser and carried out the degree of depth utilization second time of heat pump, be that indoor condenser discharges to the waste heat-cold-producing medium saturation temperature (38~47 ℃) of cold-producing medium saturated liquid under the condensing pressure after the room air heat to the enthalpy difference near (<10 ℃ time) environment temperature in outdoor winter, " not busy surplus " heat of this part conventional heat pump cycle is used for the outer evaporimeter air intake air of heating clamber, improved air intake dry-bulb temperature and reduced relative humidity, to improve and to slow down the possibility of its surperficial frosting; The electric energy and combustion (oil) the gas additive decrementation that adopt auxiliary electro-heat device or combustion (oil) hot-air heater to be used to defrost have before this been saved; Improved whole heat pump circulating system heat energy utilization rate, i.e. the COP coefficient.
The present invention is further described below in conjunction with drawings and Examples for description of drawings.
Fig. 1 is the enforcement illustration of the entire combination form external structure of double-effect heat pump circulation three-effect heat exchanger
Fig. 2 is the enforcement illustration of the split combining form external structure of double-effect heat pump circulation three-effect heat exchanger
Fig. 3 is the enforcement figure that heats recycle heat pump stream range loop structure merely of double-effect heat pump circulation three-effect heat exchanger.
Fig. 4 is that the cooling/warming system of double-effect heat pump circulation three-effect heat exchanger heats one of circulation process loop structure enforcement illustration.
Fig. 5 is that one of cooling/warming system kind of refrigeration cycle flow process loop structure of double-effect heat pump circulation three-effect heat exchanger is implemented illustration.
Fig. 6 is the two enforcement illustrations that the cooling/warming system of double-effect heat pump circulation three-effect heat exchanger heats the circulation process loop structure.
Fig. 7 is two enforcement illustrations of the cooling/warming system kind of refrigeration cycle flow process loop structure of double-effect heat pump circulation three-effect heat exchanger.
Fig. 8 is the three enforcement illustrations that the cooling/warming system of double-effect heat pump circulation three-effect heat exchanger heats the circulation process loop structure.
Fig. 9 is three enforcement illustrations of the cooling/warming system kind of refrigeration cycle flow process loop structure of double-effect heat pump circulation three-effect heat exchanger.
Among Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9:
1. double-effect heat pump circulation three-effect heat exchanger main body,
2. heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipe,
5. heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tube,
6. cold-producing medium passes in and out tracheae,
7. axial flow blower,
8. heat-pump-type defrosting economic benefits and social benefits finned heat exchanger,
9. conventional finned heat exchanger,
T 0.Air intake air ambient dry-bulb temperature ℃,
Φ 0.Air intake air ambient relative humidity %,
T 1.Conventional finned heat exchanger air intake dry-bulb temperature ℃,
Φ 1.Conventional finned heat exchanger air intake relative humidity %,
T 2.Air-out dry-bulb temperature ℃.
Among Fig. 1, Fig. 2, Fig. 3,3. expansion valve (throttling arrangement);
Among Fig. 4, Fig. 5,3. conventional finned heat exchanger drain pipe, 4. expansion valve feed tube, 10. liquid refrigerant turnover pipe, 11. check valves, 14. expansion valves (throttling arrangement);
Among Fig. 6, Fig. 7,3. conventional finned heat exchanger drain pipe, 4. expansion valve feed tube, 10. one of interface of 11. two-position three way magnetic valves, two of the interface of 12. two-position three way magnetic valves are managed in the liquid refrigerant turnover, 13. three of the interface of two-position three way magnetic valve, 14. two-position three way magnetic valve, 15. check valves, 16. expansion valves (throttling arrangement);
Among Fig. 8, Fig. 9,3. conventional finned heat exchanger drain pipe, 4. expansion valve feed tube, 10. liquid refrigerant turnover pipe, one of interface of 11. four-way change-over valves, 12. two of the interface of four-way change-over valve, 13. four, 15. four-way change-over valves of the interface of three, 14. four-way change-over valves of the interface of four-way change-over valve, 16. check valve, 17. expansion valves (throttling arrangement);
The specific embodiment
1, in Fig. 1, it is whole that the fin " ABCD " of the assembly heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) in two heat pump circulation three-effect heat exchanger main bodys (1) is connected preferred option with the fin " CDEF " of conventional finned heat exchanger (9), promptly see that along the air approach axis fin " ABEF " is that full wafer is continuous, the thermal convection current of conduction of the heat of the transmission depends metal of heat and air is carried out between such two parts, can improve the heat transfer efficiency of heat between 2 parts.
2, in Fig. 2, the fin " ABCD " of the assembly heat-pump-type of two heat pump circulation three-effect heat exchanger main bodys (1) defrosting economic benefits and social benefits finned heat exchangers (8) is connected with the fin " CDEF " of conventional finned heat exchanger (9) that inferior to select scheme also can be split, promptly see that along the air approach axis being respectively fin " ABCD " and fin " CDEF " is that discontinuous two parts constitute, it only depends on cross-ventilation to carry out the transmission of heat each other.
3, in Fig. 3, for the air source heat pump circulatory system that single heat pump utilizes purpose, double-effect heat pump circulation three-effect heat exchanger heats flow process and realizes: the saturated liquid refrigerant of (38~47 ℃) high pressure that comes out from indoor condenser enters heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and becomes to the further release heat in the external world that subcooled liquid → passing through expansion valve (throttling arrangement) (3) by heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) → again carries out adiabatic throttling step-down → be communicated to conventional finned heat exchanger (9) evaporation and absorb external environment air heat and become low-pressure gas → by cold-producing medium turnover tracheae (6) and discharge and constitute.The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of " Defrost heater " of the central outdoor air of heat pump cycle, i.e. primary adding hot-air and reduce relative humidity usefulness in the middle of " economic benefits and social benefits ".Ambient condition T 0(dry-bulb temperature), Φ 0The air intake air of (relative humidity) axial flow blower (7) of flowing through passes from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and reaches T after being heated 1(T 1T 0), Φ 11<Φ 0) blow to again conventional finned heat exchanger (9) to its heating to improve its surface temperature to T 2(outlet temperature), reduction relative humidity reach the purpose that prevents or alleviate the surperficial frosting of conventional finned heat exchanger (9), and its essence is exactly to improve the heat utilization efficiency of whole heat pump circulating system by the heat pump utilization second time.Its cold-producing medium flow process: inlet → 5 → 8 → 2 → 3 → 9 → 6 → gas outlet.
4, in Fig. 4, for the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose, double-effect heat pump circulation three-effect heat exchanger heat circulation process realize it →: the saturated liquid refrigerant of (38~47 ℃) high pressure that comes out from indoor condenser enters liquid refrigerant turnover pipe (10) → become subcooled liquid → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) by following check valve (11) → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to the further release heat in the external world to be connected to and to enter expansion valve feed tube (4) → again and pass through expansion valve (throttling arrangement) (14) and carry out adiabatic throttling step-down → enter conventional finned heat exchanger (9) evaporation and absorb external environment air heat and become low-pressure gas → process cold-producing medium and pass in and out tracheae (6) and come out → constitute to the compressor diffluence.The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of " Defrost heater " of the central outdoor air of heat pump cycle, i.e. primary adding hot-air and reduce relative humidity usefulness in the middle of " economic benefits and social benefits ".Ambient condition T 0(dry-bulb temperature) Φ 0The air intake air of (relative humidity) axial flow blower (7) of flowing through passes from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and reaches T after being heated 1(T 1T 0), Φ 11<Φ 0) blow to again conventional finned heat exchanger (9) to its heating to improve its surface temperature to T 2(outlet temperature), reduction relative humidity reach the purpose that prevents or alleviate the surperficial frosting of conventional finned heat exchanger (9), and its essence is exactly to improve the heat utilization efficiency of whole heat pump circulating system by the heat pump utilization second time.Its cold-producing medium flow process: inlet → 10 → 11 → 5 → 8 → 2 → 4 → 14 → 9 → 6 → gas outlet.
5; In Fig. 6; For the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose; double-effect heat pump circulation three-effect heat exchanger heat two of circulation process realization: two-position three way magnetic valve ( 14 ) energising, realize its two-position three way magnetic valve interface three ( 13 ) with ( 11 ) conducting of one of the interface of two-position three way magnetic valve. ( 38~47℃ ) ( 10 ) → ( 13 ) ( 11 ) → ( 5 ) → ( 8 ) → ( 2 ) → ( 4 ) → ( ) ( 16 ) → ( 9 ) → ( 6 ) →。 The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of " Defrost heater " of the central outdoor air of heat pump cycle, i.e. primary adding hot-air and reduce relative humidity usefulness in the middle of " economic benefits and social benefits " .Ambient condition T0(dry-bulb temperature), Φ 0The air intake air of (relative humidity) axial flow blower (7) of flowing through passes from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and reaches T after being heated 1(T 1T 0), Φ 11<Φ 0) blow to again conventional finned heat exchanger (9) to its heating to improve its surface temperature to T 2℃ (outlet temperature), reduce relative humidity and reach the purpose that prevents or alleviate the surperficial frosting of conventional finned heat exchanger (9), its essence is exactly to improve the heat utilization efficiency of whole heat pump circulating system by the heat pump utilization second time.Its cold-producing medium flow process: inlet → 10 → 13 → 11 → 5 → 8 → 2 → 4 → 16 → 9 → 6 → gas outlet.
6; In Fig. 8; For the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose; Double-effect heat pump circulation three-effect heat exchanger heat three of circulation process realization:four-way change-over valve (15) energising; two ( 12 ) conductings of the interface of one of the interface of realization four-way change-over valve ( 11 ) and four-way change-over valve, four ( 14 ) conductings of the interface of three ( 13 ) and four-way change-over valve of the interface of four-way change-over valve. ( 38~47℃ ) ( 10 ) → ( 11 ) ( 12 ) → ( 5 ) → ( 8 ) → ( 2 ) → ( 13 ) → ( 14 ) → ( 4 ) → ( ) ( 17 ) → ( 9 ) → ( 6 ) →。 The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of " Defrost heater " of the central outdoor air of heat pump cycle, i.e. primary adding hot-air and reduce relative humidity usefulness in the middle of " economic benefits and social benefits " .Ambient condition T0(dry-bulb temperature), Φ 0The air intake air of (relative humidity) axial flow blower (7) of flowing through passes from heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) and reaches T after being heated 1(T 1T 0), Φ 11<Φ 0) blow to again conventional finned heat exchanger (9) to its heating to improve its surface temperature to T 2(outlet temperature), reduction relative humidity reach the purpose that prevents or alleviate the surperficial frosting of conventional finned heat exchanger (9), and its essence is exactly to improve the heat utilization efficiency of whole heat pump circulating system by the heat pump utilization second time.Its cold-producing medium flow process: inlet → 10 → 11 → 12 → 5 → 8 → 2 → 13 → 14 → 4 → 17 → 9 → 6 → gas outlet.
7, in Fig. 5, for the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose, the kind of refrigeration cycle flow process of double-effect heat pump circulation three-effect heat exchanger one of realizes: the overheated gaseous refrigerant of high pressure-temperature → process the cold-producing medium turnover tracheae (6) that ejects from outdoor compressor → enter conventional finned heat exchanger (9) to extraneous release heat become saturated liquid → enter conventional finned heat exchanger drain pipe (3) → by top check valve (11) → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchanger feed tubes (5) → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) to the check valve (11) that the further release heat in the external world becomes subcooled liquid → enter heat-pump-type defrosting economic benefits and social benefits finned heat exchanger drain pipes (2) → in the middle of entering come out → pass in and out along liquid refrigerant and manage (10) and see formation off to indoor evaporator.The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of kind of refrigeration cycle central " subcooler ", i.e. less important usefulness in the middle of " economic benefits and social benefits ".Its essence improves the utilization rate of electrical of whole cooling cycle system exactly by the functional utilization of " subcooler ".Its cold-producing medium flow process: air inlet → 6 → 9 → 3 → 11 → 5 → 8 → 2 → 11 → 10 → liquid outlet.
8; In Fig. 7; For the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose; two of the kind of refrigeration cycle flow process realization of double-effect heat pump circulation three-effect heat exchanger: two-position three way magnetic valve ( 14 ) outage, realize its two-position three way magnetic valve interface three ( 13 ) with two ( 12 ) conductings of the interface of two-position three way magnetic valve.→ ( 6 ) → ( 9 ) → ( 3 ) → ( 15 ) → ( 5 ) → ( 8 ) → ( 2 ) → ( 12 ) ( 13 ) → ( 10 ) 。 The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of kind of refrigeration cycle central " subcooler ", i.e. less important usefulness in the middle of " economic benefits and social benefits " .Its essence improves the utilization rate of electrical of whole cooling cycle system exactly by the functional utilization of " subcooler " .Its cold-producing medium flow process:air inlet → 6 → 9 → 3 → 15 → 5 → 8 → 2 → 12 → 13 → 10 → liquid outlet.
9; In Fig. 9; For the air source heat pump circulatory system that cooling-and-warming heat pump utilizes purpose; Three of the kind of refrigeration cycle flow process realization of double-effect heat pump circulation three-effect heat exchanger:four-way change-over valve (15) outage; three ( 13 ) conductings of the interface of one of the interface of realization four-way change-over valve ( 11 ) and four-way change-over valve, four ( 14 ) conductings of the interface of two ( 12 ) and four-way change-over valve of the interface of four-way change-over valve.→ ( 6 ) → ( 9 ) → ( 3 ) → ( 16 ) → ( 14 ) ( 12 ) → ( 5 ) → ( 8 ) → ( 2 ) → ( 13 ) → ( 11 ) → ( 10 ) 。 The heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) of this moment play the function of kind of refrigeration cycle central " subcooler ", i.e. less important usefulness in the middle of " economic benefits and social benefits " .Its essence improves the utilization rate of electrical of whole cooling cycle system exactly by the functional utilization of " subcooler " .Its cold-producing medium flow process:air inlet → 6 → 9 → 3 → 16 → 14 → 12 → 5 → 8 → 2 → 13 → 11 → 10 → liquid outlet.
10, triple usefulness elements of double-effect heat pump circulation three-effect heat exchanger are integrated: one, the conventional finned heat exchanger of conventional cool-heat-exchanger----(9); Two, heat pump cycle Defrost heater----heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8); Three, kind of refrigeration cycle cold-producing medium subcooler----heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8).(seeing accompanying drawing Fig. 1)
11, double-effect heat pump circulation three-effect heat exchanger it " double-effect heat pump " is 2 utilizations of heat pump: be applied to the conventional load purpose for the first time, as room air heating heating or water heating; Be the outdoor surperficial Defrost heater function that is used for conventional finned heat exchanger (9) for the second time.(seeing accompanying drawing Fig. 1).

Claims (4)

1. the outdoor double-effect heat pump circulation three-effect heat exchanger of an air source cooling-and-warming heat pump system, it is characterized in that: when heating state of cyclic operation, it the heat pump outdoor heat exchanger be designed to be among the same cold-producing medium thermodynamics heat pump cycle loop freeze respectively simultaneously (heat absorption) in the middle of two different flow processs, the parts of the flow process of dispelling the heat, and on cold-producing medium thermodynamic cycle flow process, communicate with each other, be closely connected mutually, take place the reciprocal effect effect, carrying out the set of the multipurpose multifunctional operating system of heat exchange to each other by air and fin.
2. double-effect heat pump circulation three-effect heat exchanger according to claim 1 is characterized in that: when heating the operating mode of circulation in system for double-effect heat pump circulation three-effect heat exchanger, and outside low temperature (T 0, Φ 0) the air approach axis is at first to pass with the parallel connected heat-pump-type of conventional finned heat exchanger (9) defrosting economic benefits and social benefits finned heat exchangers (8) " ABCD " surface to make HTHP saturated (vapour) liquid refrigerant that indoor condenser discharges that is derived from its pipeline that passes through further cool to the liquid saturated supercooled state of the cryogenic high pressure that approaches environment temperature, meanwhile, " not busy surplus " heat of discharging of its cold-producing medium [arrives T to outdoor air intake air heat 1(〉 T 0), Φ 1(<Φ 0)] after contact with conventional finned heat exchanger (9) " CDEF " surface again and pass through.
3. double-effect heat pump circulation three-effect heat exchanger according to claim 1, it is characterized in that: when heating the operating mode of circulation in system for double-effect heat pump circulation three-effect heat exchanger, when the heat-pump-type defrosting economic benefits and social benefits finned heat exchangers (8) in its combination absorb by the surrounding air low grade heat energy as the outer surface defrosting air heater of conventional finned heat exchanger (9) with heat pump techniques also as heat pump circulating system (high-pressure liquid) cold-producing medium subcooler.
4. double-effect heat pump circulation three-effect heat exchanger according to claim 1, it is characterized in that: in the assembly heat-pump-type of two heat pump circulation three-effect heat exchanger main bodys (1) defrosting economic benefits and social benefits finned heat exchangers (8) pipeline in fluid media (medium) and conventional finned heat exchanger (9) pipeline fluid media (medium) be identical and be communicated with, and interknit, reciprocation has influence on conventional finned heat exchanger (9) in the heat pump cycle, and (being " evaporimeter " this moment) always recepts the caloric.
CNA2008100071995A 2008-02-04 2008-02-04 Double-effect heat pump circulation three-effect heat exchanger Pending CN101413739A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727708A (en) * 2014-01-13 2014-04-16 克莱门特捷联制冷设备(上海)有限公司 Finned coil for heat pump with efficient heat exchange design
CN106152607A (en) * 2015-04-13 2016-11-23 韩增生 Air energy heat pump
CN106196729A (en) * 2016-08-22 2016-12-07 广东尚而特太阳能有限公司 A kind of Heat Pump recovery type vapo(u)rization system
CN106918105A (en) * 2017-04-27 2017-07-04 广东美的制冷设备有限公司 Air-conditioning system
CN112432399A (en) * 2020-12-08 2021-03-02 合肥美的暖通设备有限公司 Heat exchange device and air conditioning system
TWI721326B (en) * 2014-02-03 2021-03-11 日商東普雷股份有限公司 Heat exchanger for refrigerating device and refrigerating device
CN112762508A (en) * 2020-12-31 2021-05-07 浙江中广电器股份有限公司 Waterless floor heating heat recovery control method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727708A (en) * 2014-01-13 2014-04-16 克莱门特捷联制冷设备(上海)有限公司 Finned coil for heat pump with efficient heat exchange design
CN103727708B (en) * 2014-01-13 2016-06-08 克莱门特捷联制冷设备(上海)有限公司 There is the heat pump finned coil of heat exchange design
TWI721326B (en) * 2014-02-03 2021-03-11 日商東普雷股份有限公司 Heat exchanger for refrigerating device and refrigerating device
CN106152607A (en) * 2015-04-13 2016-11-23 韩增生 Air energy heat pump
CN106196729A (en) * 2016-08-22 2016-12-07 广东尚而特太阳能有限公司 A kind of Heat Pump recovery type vapo(u)rization system
CN106918105A (en) * 2017-04-27 2017-07-04 广东美的制冷设备有限公司 Air-conditioning system
CN112432399A (en) * 2020-12-08 2021-03-02 合肥美的暖通设备有限公司 Heat exchange device and air conditioning system
CN112762508A (en) * 2020-12-31 2021-05-07 浙江中广电器股份有限公司 Waterless floor heating heat recovery control method

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