CN100529553C - Multifunctional heat pump device capable of cooling and heating by floor radialization - Google Patents

Multifunctional heat pump device capable of cooling and heating by floor radialization Download PDF

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Publication number
CN100529553C
CN100529553C CN 200810020654 CN200810020654A CN100529553C CN 100529553 C CN100529553 C CN 100529553C CN 200810020654 CN200810020654 CN 200810020654 CN 200810020654 A CN200810020654 A CN 200810020654A CN 100529553 C CN100529553 C CN 100529553C
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heat exchanger
water
output
input
valve
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CN101231002A (en
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梁彩华
张小松
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Southeast University
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Southeast University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps

Abstract

The invention relates to a multifunctional heat pump unit which uses floor radiation to heat or cool, and the unit relates to a multifunctional heat pump system which uses the floor radiation to heat or cool the room and realizes the production of domestic hot water. The unit comprises a refrigerant circulating loop, a domestic hot water loop and a cold/heat supplying loop, and can realize five running conditions: independent refrigerating, combined refrigerating and domestic hot water producing, independent heating, combined heating and domestic hot water producing and independent domestic hot water producing. The invention can constantly absorb heat from the supplied heat water when defrosting, the comfortableness of an air conditioner is greatly improved, a four-way valve does not act during the defrosting, and the stability and the reliability of the system are greatly increased.

Description

The multifunctional heat pump device of floor radiant cooling heating
Technical field
The present invention relates to a kind of flooring radiation that utilizes and heat, realize simultaneously producing domestic hot-water's multifunctional heating pumping system, the technical field that belongs to the refrigerated air-conditioning system design and make to indoor cooling.
Background technology
Energy problem has become global problem, along with improving constantly of expanding economy and living standards of the people, people are also more and more higher to the comfortableness requirement of inhabitation, working environment, and the consumption and the exhaustion of fossil energy not only quickened in the aggravation of energy resource consumption, increased the pollution of environment simultaneously.Heat pump has obtained using widely huge numbers of families as an important energy saving technology, the heat pump air conditioner of present most of families is only realized the function of refrigeration in summer, winter heating, and along with the raising people of quality of the life also increase greatly to domestic hot-water's demand, most of families also need purchase the source of water heater (as electric heater, solar water heater, gas heater etc.) as the domestic hot-water in addition, so not only increased investment, and efficiency of energy utilization is not high.
The floor radiant cooling heating system is verified to be good, the energy-conservation cooling heating system of a kind of comfortableness, but floor radiant cooling is because exist the floor condensation trouble, need to increase extra device (as placement ventilation device), make system complex, initial cost use than difficult greatly, the current floor radiation is mainly used in heating.There are deficiencies such as startup is slow, precooling (heat) time is long in conventional simultaneously floor radiant cooling heating installation.
Therefore, heat pump air conditioner is when realizing refrigeration in summer, winter heating, how to realize efficiently providing the domestic hot-water again, the comfortableness of raising air-conditioning and energy-conservation, solve the floor radiant cooling dewfall and start problems such as slow, that preheating time is long, designing the multifunctional heat pump device of realizing the floor radiant cooling heating becomes the technical barrier that those skilled in the art press for solution.
Summary of the invention
Technical problem: the objective of the invention is when heat pump air conditioner has refrigeration in summer, winter heating's function, realize efficiently providing the domestic hot-water again, the comfortableness of raising air-conditioning and energy-conservation, solve the floor radiant cooling dewfall and start problems such as slow, that preheating time is long, design the multifunctional heat pump device of realizing the floor radiant cooling heating.
Technical scheme: the multifunctional heat pump device of floor radiant cooling heating of the present invention comprises refrigerant circulation loop, domestic hot-water loop and cooling heating loop.Refrigerant circulation loop comprises compressor, first magnetic valve, domestic hot-water's heat exchanger, defrosting motor-operated control valve, cross valve, first heat exchanger, second magnetic valve, first check valve, second check valve, the 3rd check valve, the 4th check valve, reservoir, filter, electric expansion valve, second heat exchanger, gas-liquid separator and relevant connection pipeline thereof.The output of compressor divides two-way, one tunnel hot water heat exchanger first input end 3a alive that delivers a child, another road meets cross valve first input end 5a after merging by first magnetic valve and domestic hot-water's heat exchanger first output 3b, also connect the second heat exchanger input 15a simultaneously by the defrosting motor-operated control valve, the cross valve first output 5b meets the first heat exchanger first input end 6a, the cross valve first output 5b also meets first heat exchanger, the first output 6b by second magnetic valve simultaneously, first heat exchanger, the first output 6b connects the input of reservoir by first check valve, first heat exchanger, the first output 6b is also by first check valve simultaneously, second check valve meets the second heat exchanger input 15a, the output of reservoir connects the input of electric expansion valve by filter, the electric expansion valve output meets the second heat exchanger input 15a by the 4th check valve, the output of electric expansion valve also meets first heat exchanger, the first output 6b by the 3rd check valve simultaneously, the second heat exchanger output 15b meets the cross valve second input 5c, the cross valve second output 5d connects the input of gas-liquid separator, and the input of the output termination compressor of gas-liquid separator; The domestic hot-water loop comprises warm water reservoir, first water pump, domestic hot-water's heat exchanger, the 3rd magnetic valve, the 4th magnetic valve, water compensating valve and relevant connection pipeline thereof.The outlet of hot water tank connects the inlet of first water pump, the outlet of first water pump is divided into two-way, deliver a child respectively hot water heat exchanger alive the second input 3c and the 3rd the input 3d, by merging the input that connects hot water tank behind the 3rd magnetic valve, the 4th magnetic valve, water compensating valve connects the warm water reservoir bottom respectively for domestic hot-water's heat exchanger second output 3e and the 3rd output 3f; Cooling heating loop comprises first heat exchanger, second water pump, dehumidification type fan coil, electric three passes control valve, floor pipe laying radiation cooling heating system and relevant connection pipeline composition thereof.First heat exchanger, the second output 6d connects the inlet of electric three passes control valve, one way outlet of electric three passes control valve connects the input of dehumidification type fan coil, the output of another way outlet and dehumidification type fan coil merges the input of back earth plate pipe laying radiation cooling heating system, the input of output termination second water pump of floor pipe laying radiation cooling heating system, the output of second water pump links to each other with first heat exchanger, the second input 6c.
Apparatus of the present invention comprise refrigerant circulation loop, domestic hot-water loop and cooling heating loop, can realize five kinds of operating conditions: separate refrigeration, joint refrigeration and system domestic hot-water, heat separately, unite and heat and make the domestic hot-water, make the domestic hot-water separately.
Under the separate refrigeration operating mode, device first magnetic valve is opened in the refrigerant circulation loop, second closed electromagnetic valve, the defrosting motor-operated control valve is closed, this moment is identical with the workflow of the wind-cooled cold-water unit of routine, cold-producing medium is being sucked the discharge of compression back by first magnetic valve by compressor, cross valve, condensation in second heat exchanger, then successively through second check valve, reservoir, filter, electric expansion valve, the 3rd check valve enters first heat exchanger, cold-producing medium evaporates the absorption heat therein, produce cold water, and then by cross valve, sucked circulation once more by compressor after entering gas-liquid separator.The domestic hot-water loop is not because device is produced the domestic hot-water, and the loop quits work: first water pump is out of service, the 3rd magnetic valve, the 4th closed electromagnetic valve.Enter the electric three passes control valve after chilled water comes out in the cooling heating loop from first heat exchanger, chilled water enters the dehumidification type fan coil from a way outlet of electric three passes control valve, cryogenic freezing water carries out dehumidifying and cooling by the dehumidification type fan coil to room air, this moment, the dehumidification type fan coil mainly was based on dehumidifying, bear the humidity load of room air, reduce indoor water capacity, guarantee dewfall not occur on the floor, chilled water enters floor pipe laying radiation cooling heating system after the chilled water merging that the dehumidification type fan coil comes out afterwards and another way outlet from the electric three passes control valve comes out mixes, chilled water therein by the floor to room radiation cold, reduce the temperature of space air, while self temperature raises, through entering first heat exchanger after the pressurization of second water pump, carry out heat exchange with cold-producing medium therein, emit heat self temperature and reduce, participate in circulation after coming out from first heat exchanger once more.
Under joint refrigeration and system domestic hot-water operating mode, operation is similar under refrigerant circulation loop and the separate refrigeration operating mode, difference is, what cold-producing medium at first entered after being compressed by compressor is domestic hot-water's heat exchanger rather than first magnetic valve (first closed electromagnetic valve this moment), cold-producing medium is emitted a part of heat in domestic hot-water's heat exchanger, produce the domestic hot-water, similar under circulation of back cold-producing medium and the cooling condition.Domestic hot-water loop operate as normal, hot water comes out to be sucked by first water pump from hot water tank and is entered domestic hot-water's heat exchanger (this moment the 4th closed electromagnetic valve after the pressurization, hot water only enters domestic hot-water's heat exchanger from domestic hot-water's heat exchanger second input 3c, heat exchanger area partly utilizes), hot water therein with the cold-producing medium heat exchange, the hot water temperature raises, after coming out from domestic hot-water's heat exchanger, enter hot water tank through the 3rd magnetic valve, in the course of the work, hot water temperature in the hot water tank improves constantly, when temperature reaches setting value (as 60 ℃), the domestic hot-water loop quits work (first water pump is out of service, and first magnetic valve is opened), when hot water is consumed, running water enters automatically from water compensating valve, guarantee that the water yield is constant in the hot water tank, when temperature in the hot water tank is lower than setting value (as 35 ℃), domestic hot-water's (first closed electromagnetic valve of reworking in the loop, first water pump reruns).The operation of cooling heating system is consistent with operation under the separate refrigeration operating mode.
Under independent heating condition, refrigerant circulation loop is that device first magnetic valve is opened, second closed electromagnetic valve, the defrosting motor-operated control valve is closed, this moment is identical with the workflow of the air source cold-hot water unit of routine, cold-producing medium is being sucked the compression back by first magnetic valve by compressor, cross valve, heat is emitted in condensation in first heat exchanger, produce hot water, then successively through first check valve, reservoir, filter, electric expansion valve, the 4th check valve enters second heat exchanger, cold-producing medium evaporates the absorption heat therein, and then by cross valve, is sucked circulation once more by compressor after entering gas-liquid separator.Domestic hot-water loop quit work (first water pump is out of service).Enter the electric three passes control valve after hot water comes out in the cooling heating loop during normal the operation from first heat exchanger, the electric three passes control valve cuts out the flow that enters the dehumidification type fan coil, all hot water is directly entered floor pipe laying radiation cooling heating system, hot water is therein by the flooring radiation heat, the temperature of rising space air, while self temperature reduces, through entering first heat exchanger after the pressurization of second water pump, carry out heat exchange with cold-producing medium therein, absorb heat, while self temperature raises, participate in circulation after coming out from first heat exchanger once more, in the firm incipient stage of indoor heating, because the floor needs accumulation of heat during flooring radiation heating beginning, heat distributes slower, the electric three passes control valve all enters the dehumidification type fan coil with hot water when bringing into operation, hot water heats room air by the dehumidification type fan coil, realize that room temperature is increased to setting value fast, when floor pipe laying radiation cooling heating system the floor preheating is good and when indoor radiations heat energy increases, progressively turn down the hot water amount that the electric three passes control valve enters the dehumidification type fan coil, up to closing fully, only take floor pipe laying radiant heating system to indoor heating this moment.
Heat and make domestic hot-water's operating mode following time uniting, operation is similar down for device refrigerant circulation loop and heating condition, difference is, what cold-producing medium at first entered after being compressed by compressor is domestic hot-water's heat exchanger rather than first magnetic valve (first closed electromagnetic valve), this moment, cold-producing medium was emitted a part of heat in domestic hot-water's heat exchanger, produce the domestic hot-water, similar under circulation of back cold-producing medium and the heating condition.Domestic hot-water loop operate as normal, the course of work and joint refrigeration and heat under the water condition similar, similar under hot water circuit and the heating condition separately in the cooling heating loop.
Making separately under domestic hot-water's operating mode, refrigerant circulation loop is device first closed electromagnetic valve, second magnetic valve is opened, the defrosting motor-operated control valve is closed, cold-producing medium enters domestic hot-water's heat exchanger after being sucked compression by compressor, cold-producing medium is emitted heat therein and all is condensed into liquid, produce the domestic hot-water, pass through cross valve then, second magnetic valve is more successively through first check valve, reservoir, filter, electric expansion valve, the 4th check valve enters second heat exchanger, and cold-producing medium evaporates the absorption heat therein, and then by cross valve, sucked circulation once more by compressor after entering gas-liquid separator.Domestic hot-water loop operate as normal, hot water is sucked by first water pump and is divided into two-way after the pressurization and enters domestic hot-water's heat exchanger (this moment the 3rd magnetic valve from the hot water tank back of coming out, the 4th magnetic valve is all opened, the heat exchanger heat exchange area all utilizes), hot water therein with the cold-producing medium heat exchange, the hot water temperature raises, after coming out from domestic hot-water's heat exchanger, hot water merges after through the 3rd magnetic valve or the 4th magnetic valve and enters hot water tank again, in the course of the work, hot water temperature in the hot water tank improves constantly, when temperature reaches setting value (as 60 ℃), domestic hot-water loop quit work (first water pump is out of service), whole device is also out of service, and when hot water was consumed, running water entered automatically from water compensating valve, guarantee that the water yield is constant in the hot water tank, when temperature in the hot water tank is lower than setting value (as 35 ℃), hot-water heating system is reworked (first water pump reruns), and promptly whole device is reset.
At heating condition, unite and heat and make under domestic hot-water's operating mode, the problem that has the second heat exchanger surface frosting and defrosting, apparatus of the present invention are taked the sensible heat defrost mode, concrete grammar is, when changing defrosting work over to by heating operation, the switching of being failure to actuate of the cross valve of device still keeps the heating condition upper/lower positions, this moment, electric expansion valve was closed fully, and the defrosting motor-operated control valve is opened.At this moment refrigerant circulation loop is, cold-producing medium is sucked from gas-liquid separator by compressor, after the compression, because electric expansion valve is closed fully, originally the cold-producing medium that comes out from compressor during heating operation passes through cross valve successively, first heat exchanger (or second magnetic valve), first check valve, reservoir, filter to the circulation passage of electric expansion valve just by by, the cold-producing medium that comes out from compressor will directly arrive the second heat exchanger input 15a by the defrosting motor-operated control valve, the refrigerant superheat steam of HTHP becomes the steam of high-temperature low-pressure after by the motor-operated control valve throttling that defrosts, cold-producing medium carries out heat exchange in second heat exchanger, heat is passed to the outer frost layer of pipe by exchanger tube wall, thereby the frost layer is removed, and cold-producing medium self temperature reduces simultaneously.Aperture when regulating the defrosting motor-operated control valve when controlling the flow of cold-producing medium in second heat exchanger, just can guarantee that cold-producing medium is only lowered the temperature in second heat exchanger, emits sensible heat and is not condensed into liquid.Cold-producing medium is got back to gas-liquid separator by cross valve after the second heat exchanger output 15b comes out, and then is sucked, compresses by compressor, participates in circulation once more and defrosts.Domestic hot-water loop when device defrosts, cooling heating loop all quit work (first water pump, second water pump all quit work).
Beneficial effect: the present invention relates to a kind of flooring radiation that utilizes and heat, realize simultaneously producing domestic hot-water's multifunctional heating pumping system, have following characteristics to indoor cooling:
1, the floor radiant cooling heating multi-functional air conditioner device of the present invention's proposition can utilize same set of floor pipe laying irradiation structure to provide cold, winter that heat is provided summer to indoor realization.
2, the present invention takes the dehumidification type fan coil, can bear the air humidity load in summer and handle, and prevents the floor dewfall, accelerates indoorly in cooling or the indoor precooling (heat) of heating initial stage simultaneously, remedies flooring radiation and starts slower shortcoming.
3, the present invention can realize freezing, providing when heating the domestic hot-water at all seasons.
4, the present invention is at when defrosting draw heat from institute's heat supply water not, and air conditioning comfortableness improves greatly, and cross valve is with being failure to actuate during defrosting, and the stability of a system and reliability improve greatly.
Description of drawings
Fig. 1 is the multifunctional heat pump device schematic diagram of floor radiant cooling heating of the present invention.
Have among Fig. 1: compressor 1; First magnetic valve 2; Domestic hot-water's heat exchanger 3; Domestic hot-water's heat exchanger first input end 3a; Domestic hot-water's heat exchanger first output 3b; Domestic hot-water's heat exchanger second input 3c; Domestic hot-water's heat exchanger the 3rd input 3d; Domestic hot-water's heat exchanger second output 3e; Domestic hot-water's heat exchanger the 3rd output 3f; Defrosting motor-operated control valve 4; Cross valve 5; Cross valve first input end 5a; The cross valve first output 5b; The cross valve second input 5c; The cross valve second output 5d; First heat exchanger 6; The first heat exchanger first input end 6a; First heat exchanger, the first output 6b; First heat exchanger, the second input 6c; First heat exchanger, the second output 6d; Second magnetic valve 7; First check valve 8; Second check valve 9; Reservoir 10; Filter 11; Electric expansion valve 12; The 3rd check valve 13; The 4th check valve 14; Second heat exchanger 15; The second heat exchanger input 15a; The second heat exchanger output 15b; Gas-liquid separator 16; Hot water tank 17; First water pump 18; The 3rd magnetic valve 19; The 4th magnetic valve 20; Water compensating valve 21; Dehumidification type fan coil 22; Electric three passes control valve 23; Floor pipe laying radiation cooling heating system 24; Second water pump 25.
Fig. 2 is domestic hot-water's heat exchanger structure figure.
Heat exchanger has 3 tunnel fluid passages: a-b, c-e, d-f among Fig. 2. Passage a-b walks shell, Passage c-e, passage d-f walk respectively tube side, are equivalent to change when fluid is only walked 1 road shell and 1 road tube side Hot device area only utilizes a part, and fluid only walks 1 road shell and the whole heat exchanger area of 2 road tube sides is just filled Divide and utilize, therefore can walk by the control fluid adjusting of the quantity realization heat exchanger size of tube side, thereby Realize the adjusting of exchange amount of heat.
The specific embodiment
1 further specify the specific embodiment of the present invention in conjunction with the accompanying drawings: floor radiant cooling heating multifunctional heat pump device of the present invention comprises refrigerant circulation loop, domestic hot-water loop and cooling heating loop.Concrete connected mode is: the output of compressor 1 divides two-way, one tunnel hot water heat exchanger first input end 3a alive that delivers a child, another road meets cross valve first input end 5a after merging with domestic hot-water's heat exchanger first output 3b by first magnetic valve 2, also connect the second heat exchanger input 15a simultaneously by defrosting motor-operated control valve 4, the cross valve first output 5b meets the first heat exchanger first input end 6a, the cross valve first output 5b also meets first heat exchanger, the first output 6b by second magnetic valve 7 simultaneously, first heat exchanger, the first output 6b connects the input of reservoir 10 by first check valve 8, first heat exchanger, the first output 6b is also by first check valve 8 simultaneously, second check valve 9 meets the second heat exchanger input 15a, the output of reservoir 10 connects the input of electric expansion valve 12 by filter 11, electric expansion valve 12 outputs meet the second heat exchanger input 15a by the 4th check valve 14, the output of electric expansion valve 12 also meets first heat exchanger, the first output 6b by the 3rd check valve 13 simultaneously, the second heat exchanger output 15b meets the cross valve second input 5c, the cross valve second output 5d connects the input of gas-liquid separator 16, and the input of the output termination compressor 1 of gas-liquid separator 16; The outlet of hot water tank 17 connects the inlet of first water pump 18, the outlet of first water pump 18 is divided into two-way, hot water heat exchanger second input 3c alive and the 3rd input 3d deliver a child respectively, domestic hot-water's heat exchanger second output 3e and the 3rd output 3f merge the input that connects hot water tank 17 by the 3rd magnetic valve 19, the 4th magnetic valve 20 backs respectively, and water compensating valve 21 connects warm water reservoir 17 bottoms; The second output 6d of first heat exchanger 6 connects the inlet of electric three passes control valve 23, one way outlet of electric three passes control valve 23 connects the input of dehumidification type fan coil 22, the output of another way outlet and dehumidification type fan coil 22 merges the input of back earth plate pipe laying radiation cooling heating system 24, the input of output termination second water pump 25 of ground pipe laying radiation cooling heating system 24, the output of second water pump 25 links to each other with first heat exchanger, the second input 6c.
Under the separate refrigeration operating mode, refrigerant circulation loop is that device first magnetic valve 2 is opened, second magnetic valve 7 cuts out, defrosting motor-operated control valve 4 is closed, cold-producing medium is being sucked the discharge of compression back by first magnetic valve 2 by compressor 1,5a enters from the cross valve first input end, bring out from 5c and to enter second heat exchanger 15, cold-producing medium brings out from the second heat exchanger 15a after being condensed into liquid therein, then successively through second check valve 9, reservoir 10, filter 11, electric expansion valve 12 enters first heat exchanger 6 from the 3rd check valve 13 after being become gas-liquid two-phase by throttling, cold-producing medium evaporates the absorption heat therein, produce cold water, cold-producing medium enters cross valve 5 by the cross valve first output 5b after the first heat exchanger first input end 6a comes out, come out to enter gas-liquid separator 16 from the cross valve second output 5d then, come out the back by compressor 1 suction circulation once more from gas-liquid separator 16.The domestic hot-water loop is not because device is produced the domestic hot-water, and the loop quits work: first water pump 18 is out of service, and the 3rd magnetic valve 19, the 4th magnetic valve 20 are closed.
Enter electric three passes control valve 23 after chilled water comes out in the cooling heating loop from first heat exchanger 6, chilled water enters dehumidification type fan coil 22 from a way outlet of electric three passes control valve 23, chilled water enters floor pipe laying radiation cooling heating system 24 after the chilled water merging that dehumidification type fan coil 22 comes out afterwards and another way outlet from electric three passes control valve 23 comes out mixes, after coming out through entering first heat exchanger 6 after the pressurization of second water pump 25, carry out heat exchange with cold-producing medium therein, emit heat self temperature and reduce, participate in circulation after coming out from first heat exchanger 6 once more.
Under joint refrigeration and system domestic hot-water operating mode, operation is similar under refrigerant circulation loop and the separate refrigeration operating mode, difference is, what cold-producing medium at first entered after being compressed by compressor 1 is domestic hot-water's heat exchanger 3 rather than first magnetic valve 2 (this moment, first magnetic valve 2 cut out), cold-producing medium is emitted a part of heat in domestic hot-water's heat exchanger 3, produce the domestic hot-water.Similar under back cold-producing medium circulation and the cooling condition.(this moment, the 4th magnetic valve 20 cut out by entering domestic hot-water's heat exchanger 3 after the 18 suction pressurizations of first water pump after hot water came out from hot water tank 17 in the domestic hot-water loop, hot water only enters domestic hot-water's heat exchanger 3 from domestic hot-water's heat exchanger second input 3c), hot water therein with the cold-producing medium heat exchange, the hot water temperature raises, after coming out from domestic hot-water's heat exchanger 3, enter hot water tank 17 through the 3rd magnetic valve 19, in the course of the work, hot water temperature in the hot water tank 17 improves constantly, when temperature reaches setting value, the domestic hot-water loop quits work, and (first water pump 18 is out of service, first magnetic valve 2 is opened), when hot water is consumed, running water enters automatically from water compensating valve 25, guarantees that the water yield is constant in the hot water tank 17, when temperature in the hot water tank 17 is lower than setting value, domestic hot-water's rework in the loop (first magnetic valve 2 cuts out, and first water pump 18 reruns).Cooling heating loop operation is consistent with operation under the separate refrigeration operating mode.
Under independent heating condition, refrigerant circulation loop is that device first magnetic valve 2 is opened, second magnetic valve 7 cuts out, defrosting motor-operated control valve 4 is closed, cold-producing medium enters cross valve first input end 5a by first magnetic valve 2 after being sucked compression by compressor 1, after coming out, the cross valve first output 5b enters first heat exchanger 6 then, heat is emitted in cold-producing medium condensation in first heat exchanger 6, produce hot water, then successively through first check valve 8, reservoir 10, filter 11, electric expansion valve 12, the 4th check valve 14 enters second heat exchanger 15, cold-producing medium evaporates the absorption heat therein, from second heat exchanger 15, come out then to enter from the cross valve second input 5c once more, enter gas-liquid separator 16 after 5d brings out, sucked circulation once more by compressor 1 then.Domestic hot-water loop quit work (first water pump 18 is out of service).Enter electric three passes control valve 23 after hot water comes out in the cooling heating loop during normal the operation from first heat exchanger 6, electric three passes control valve 23 cuts out the flow that enters dehumidification type fan coil 22, all hot water is directly entered floor pipe laying radiation cooling heating system 24, hot water is therein by the flooring radiation heat, the temperature of rising space air, while self temperature reduces, through entering first heat exchanger 6 after 25 pressurizations of second water pump, carry out heat exchange with cold-producing medium therein, absorb heat, while self temperature raises, and participates in circulation after coming out from first heat exchanger 6 once more.
At electric three passes control valve 23 of firm incipient stage of indoor heating hot water is all entered dehumidification type fan coil 22, hot water is by 22 pairs of room air heating of dehumidification type fan coil, realize that room temperature is increased to setting value fast, when floor pipe laying radiation cooling heating system 24 the floor preheating is good and when indoor radiations heat energy increases, progressively turn down the hot water amount that electric three passes control valve 23 enters dehumidification type fan coil 22, up to closing fully, only take floor pipe laying radiant heating system to indoor heating this moment.
Heat and make domestic hot-water's operating mode following time uniting, operation is similar down for device refrigerant circulation loop and heating condition, difference is, what cold-producing medium at first entered after being compressed by compressor 1 is domestic hot-water's heat exchanger 3 rather than first magnetic valve 2 (first magnetic valve 2 cuts out), this moment, cold-producing medium was emitted a part of heat in domestic hot-water's heat exchanger 3, produce the domestic hot-water, similar under circulation of back cold-producing medium and the heating condition.Domestic hot-water loop operate as normal, the course of work and joint refrigeration and heat under the water condition similar, similar under hot water circuit and the heating condition separately in the cooling heating loop.
Making separately under domestic hot-water's operating mode, refrigerant circulation loop is that device first magnetic valve 2 cuts out, second magnetic valve 7 is opened, defrosting motor-operated control valve 4 is closed, cold-producing medium enters domestic hot-water's heat exchanger 3 after being sucked compression by compressor 1, heat is emitted in the whole therein condensations of cold-producing medium, produce the domestic hot-water, then by cross valve 5, second magnetic valve 7 is more successively through first check valve 8, reservoir 10, filter 11, electric expansion valve 12, the 4th check valve 14 enters second heat exchanger 15, and cold-producing medium evaporates the absorption heat therein, and then, enter gas-liquid separator 16 backs and sucked circulation once more by compressor 1 by cross valve 5.Domestic hot-water loop operate as normal, for hot water is sucked by first water pump 18 and is divided into two-way after the pressurization and enters domestic hot-water's heat exchanger 3 (this moment the 3rd magnetic valve 19 from hot water tank 17 back of coming out, the 4th magnetic valve 20 is all opened), hot water therein with the cold-producing medium heat exchange, the hot water temperature raises, after coming out from domestic hot-water's heat exchanger 3, hot water merges after through the 3rd magnetic valve 19 or the 4th magnetic valve 20 and enters hot water tank 17 again, in the course of the work, hot water temperature in the hot water tank 17 improves constantly, when temperature reaches setting value, domestic hot-water loop quit work (first water pump 18 is out of service), whole device is also out of service, when hot water is consumed, running water enters automatically from water compensating valve 25, guarantees that the water yield is constant in the hot water tank 17, when temperature in the hot water tank 17 is lower than setting value, the domestic hot-water reworks in the loop (first water pump 18 reruns), and promptly whole device is also reset, work.
At heating condition, unite and heat and heat under the water condition, when changing defrosting work over to by heating operation, in the refrigerant circulation loop, first magnetic valve 2 is opened, second magnetic valve 7 cuts out, electric expansion valve 12 is closed, defrosting motor-operated control valve 4 is opened work.Sucking cold-producing medium from gas-liquid separator 16 is discharged by compressor 1 compression back, behind first magnetic valve 2, to directly arrive the second heat exchanger input 15a by defrosting motor-operated control valve 4, cold-producing medium carries out heat exchange in second heat exchanger 15, heat will be passed to the outer frost layer of pipe by exchanger tube wall, thereby the frost layer is removed, and cold-producing medium self temperature reduces simultaneously.When the valve opening of control defrosting motor-operated control valve 4, promptly regulate when entering the flow of cold-producing medium in second heat exchanger 15, can realize that cold-producing medium is only lowered the temperature in second heat exchanger, emit sensible heat and be not condensed into liquid.Cold-producing medium is got back to gas-liquid separator 16 by cross valve 5 after the second heat exchanger output 15b comes out, and then is sucked, compresses by compressor 1, participates in circulation once more and defrosts.Domestic hot-water loop when device defrosts, cooling heating loop all quit work (first water pump 18, second water pump 25 all quit work).

Claims (3)

1. the multifunctional heat pump device of a floor radiant cooling heating is characterized in that this device comprises refrigerant circulation loop, domestic hot-water loop and cooling heating loop;
In the refrigerant circulation loop, the output of compressor (1) divides two-way, one tunnel hot water heat exchanger first input end alive (3a) of delivering a child, after merging by first magnetic valve (2) and domestic hot-water's heat exchanger first output (3b), another road connects the cross valve first input end (5a) of cross valve (5), cross valve first input end (5a) connects the second heat exchanger input (15a) of second heat exchanger (15) by defrosting motor-operated control valve (4), cross valve first output (5b) connects the first heat exchanger first input end (6a) of first heat exchanger (6), cross valve first output (5b) also connects first heat exchanger, first output (6b) by second magnetic valve (7) simultaneously, first heat exchanger, first output (6b) connects the input of reservoir (10) by first check valve (8), first heat exchanger, first output (6b) is also by first check valve (8) simultaneously, second check valve (9) connects the second heat exchanger input (15a), the output of reservoir (10) connects the input of electric expansion valve (12) by filter (11), the output of electric expansion valve (12) connects the second heat exchanger input (15a) by the 4th check valve (14), the output of electric expansion valve also connects first heat exchanger, first output (6b) by the 3rd check valve (13) simultaneously, the second heat exchanger output (15b) connects cross valve second input (5c), cross valve second output (5d) connects the input of gas-liquid separator (16), and the input of the output termination compressor (1) of gas-liquid separator (16);
In the domestic hot-water loop, the outlet of hot water tank (17) connects the inlet of first water pump (18), the outlet of first water pump (18) is divided into two-way, deliver a child respectively hot water heat exchanger second input alive (3c), the 3rd input (3d), domestic hot-water's heat exchanger second output (3e), domestic hot-water's heat exchanger the 3rd output (3f) merge the input that connects hot water tank (17) by the 3rd magnetic valve (19), the 4th magnetic valve (20) back respectively, and water compensating valve (21) connects hot water tank (17) bottom;
In the cooling heating loop, first heat exchanger, second output (6d) connects the inlet of electric three passes control valve (23), one way outlet of electric three passes control valve (23) connects the input of dehumidification type fan coil (22), the output of another way outlet and dehumidification type fan coil (22) merges the input of back earth plate pipe laying radiation cooling heating system (24), the input of output termination second water pump (25) of floor pipe laying radiation cooling heating system (24), the output of second water pump (25) links to each other with first heat exchanger, second input port (6c).
2. the multifunctional heat pump device of floor radiant cooling heating according to claim 1, it is characterized in that the domestic hot-water's heat exchanger (3) that is adopted has 3 tunnel fluid passages: domestic hot-water's heat exchanger first input end (3a)-domestic hot-water's heat exchanger first output (3b), domestic hot-water's heat exchanger second input (3c)-domestic hot-water's heat exchanger second output (3e), domestic hot-water's heat exchanger the 3rd input (3d)-domestic hot-water's heat exchanger the 3rd output (3f), domestic hot-water's heat exchanger first input end (3a)-this passage of domestic hot-water's heat exchanger first output (3b) is walked shell side, these two passages of domestic hot-water's heat exchanger second input (3c)-domestic hot-water's heat exchanger second output (3e) and domestic hot-water's heat exchanger the 3rd input (3d)-domestic hot-water's heat exchanger the 3rd output (3f) are walked tube side, by the port number of changing tube side realize heat exchanger under the associating operating mode with the adjusting that heats required various heat exchange area under the water condition separately.
3. the multifunctional heat pump device of floor radiant cooling heating according to claim 1 is characterized in that the dehumidification type fan coil described in the device, and when freezing summer, this coil pipe is major function with the dehumidifying, heats winter based on big heat exchange amount.
CN 200810020654 2008-02-19 2008-02-19 Multifunctional heat pump device capable of cooling and heating by floor radialization Expired - Fee Related CN100529553C (en)

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CN101943504A (en) * 2010-09-27 2011-01-12 江苏天舒电器有限公司 Heat pump capillary radiant constant temperature hot-water system and control method thereof
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