CN201149400Y - Air source/water cold-hot pump device based on solution - Google Patents
Air source/water cold-hot pump device based on solution Download PDFInfo
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- CN201149400Y CN201149400Y CNU2008200307607U CN200820030760U CN201149400Y CN 201149400 Y CN201149400 Y CN 201149400Y CN U2008200307607 U CNU2008200307607 U CN U2008200307607U CN 200820030760 U CN200820030760 U CN 200820030760U CN 201149400 Y CN201149400 Y CN 201149400Y
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Abstract
The utility model provides an air source/water source heat pump device based on solution, and relates to a novel heat pump heating method which absorbs heat from air based on solution as well as a device used for realizing the method. The device comprises a refrigerant circulating loop and a solution circulating loop, wherein, the refrigerant circulating loop comprises a compressor, two electromagnetic valves, a regenerator, a four-way valve, a first heat exchanger, four retaining valves, a liquid reservoir, a filter, an electronic expansion valve, a second heat exchanger, a gas-liquid separator and connecting pipes; and the solution circulating loop comprises a cooling tower, a solution reservoir, three manual valves, a variable frequency pump, an electric 3-way regulating valve, a regenerator, a second heat exchanger and connecting pipes. The utility model solves the problems that the water is cold and a water-cooled chiller is idle in winter, the refrigerating performance of an air source heat pump is lower in summer (compared with the water-cooled chiller), and the operation in winter has frost phenomena, and is a novel air source solution type heat pump heating device which adopts a water-cooled way for refrigeration in summer and absorb the heat from the air by dint of the solution in winter.
Description
Technical field
The utility model relate to a kind of novel based on solution draw heat from air the heat pump heating method and realize the device of this method, the technical field that belongs to the refrigerated air-conditioning system design and make.
Background technology
Along with improving constantly of fast development of national economy and living standards of the people, people are also more and more higher to the comfortableness requirement of inhabitation, working environment, and air-conditioning becomes people's normal life, working and learning indispensable requisites.Existing building central air conditioner system in summer refrigeration is to take the water-cooled handpiece Water Chilling Units mostly, and winter, the water-cooled handpiece Water Chilling Units was stopped using because can not heat, and caused a large amount of idlenesses of equipment.Central air conditioner system is taked the boiler heat supplying scheme for heat supply simultaneously, but has so promptly increased initial cost and heat cost, also causes environmental pollution simultaneously.
Central air conditioner system heat supply in winter also can be taked air source heat pump heat supply scheme, and air source heat pump can provide cold water in summer, also can produce hot water in the winter time.When air source heat pump was produced cold water in summer, because take the air cooling, the coefficient of performance was more much smaller than the water-cooled handpiece Water Chilling Units coefficient of performance, and operating cost is far above the water-cooled handpiece Water Chilling Units.Simultaneously air source heat pump is in the winter time during heating operation, the problem that has the frosting of unit evaporator surface, along with the operation of unit under frozen condition, knot is thick more more for the frost layer of evaporator surface, the increase of frost layer, increased the heat transfer resistance of evaporimeter inner refrigerant and air, white simultaneously layer thickening, reduced the ventilation area of evaporimeter, the air mass flow of the feasible evaporimeter of flowing through descends, cause the heat exchange of evaporimeter to worsen, reduced the coefficient of performance of heat pump, even made heat pump normally not move.Therefore unit need defrost.And the defrosting frequently of unit causes the heat pump heating efficiency and the time that heats descends.
Therefore, solve the water-cooled handpiece Water Chilling Units idleness of equipment in winter waste, air source heat pump coefficient of performance of refrigerating in summer lower (with water-cooled handpiece Water Chilling Units ratio), there are problems such as frosting phenomenon in winter operation, and designing a kind of new and effective refrigerating and heating air conditioner system becomes the technical barrier that those skilled in the art press for solution.
Summary of the invention
Technical problem: the purpose of this utility model is that solution water-cooled handpiece Water Chilling Units in winter is idle, air source heat pump coefficient of performance of refrigerating in summer lower (with water-cooled handpiece Water Chilling Units ratio), there is the problem of frosting phenomenon in winter operation, proposes a kind of novel water-cooled refrigeration in summer, a kind of air source/water cooling heat pump device based on solution that absorb heat from air by solution winter.
Technical scheme: in the air source/water cooling heat pump device based on solution of the present utility model, system comprises refrigerant circulation loop and solution circulation loop.Refrigerant circulation loop comprises compressor, first magnetic valve, second magnetic valve, regenerator, cross valve, first heat exchanger, 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, first magnetic valve of leading up to meets the input a of regenerator, meet the input a of cross valve after the output b merging of another road by second magnetic valve and regenerator, the output b of cross valve meets the input a of first heat exchanger, the output b of first heat exchanger connects the input of reservoir by first check valve, the output b of first heat exchanger is also by first check valve simultaneously, second check valve meets the input a of second heat exchanger, the output of reservoir connects the input of electric expansion valve by filter, the electric expansion valve output meets the input a of second heat exchanger by the 4th check valve, the output of electric expansion valve also meets the output b of first heat exchanger by the 3rd check valve simultaneously, the output b of second heat exchanger meets the input c of cross valve, the output d of cross valve connects the input of gas-liquid separator, and the input of the output termination compressor of gas-liquid separator; Solution loop comprises cooling tower, solution reservoir, first-hand valve, second-hand's valve, the 3rd hand valve, variable frequency pump, electric three passes control valve, regenerator, second heat exchanger and relevant connection pipeline thereof.Cooling tower outlet is divided into two-way, and the first-hand valve of leading up to connects solution reservoir inlet, and the outlet of solution reservoir connects the inlet of variable frequency pump by the 3rd hand valve, and the second-hand's valve of leading up in addition also connects the inlet of variable frequency pump.The variable frequency pump outlet connects the electric three passes control valve, a road of electric three passes control valve meets the solution input port c of regenerator, other one the tunnel meets the solution input port c of second heat exchanger after merging with the solution delivery outlet d of regenerator, and the solution delivery outlet d of second heat exchanger links to each other with the input port of cooling tower.
The utility model air source solution type heat pump comprises two closed circuits: refrigerant circulation loop and solution circulation loop.Concrete grammar of the present utility model is:
During air source solution type heat pump refrigerating operaton in summer, refrigerant circulation loop is that the refrigerant gas of low-temp low-pressure is sucked by compressor from gas-liquid separator, becoming the HTHP superheated vapor after the compression discharges, enter in second heat exchanger through second magnetic valve and cross valve, cold-producing medium is emitted heat, carry out condensation and become liquid, again successively through second check valve, reservoir, filter, become the gas-liquid two-phase of low-temp low-pressure behind the electric expansion valve, again through entering first heat exchanger behind the 3rd check valve, the cold-producing medium evaporation of in first heat exchanger, absorbing heat, produce cold water, becoming overheated gas after cold-producing medium evaporates fully comes out to enter gas-liquid separator through cross valve from first heat exchanger, and then be inhaled into compressor, thereby finish kind of refrigeration cycle, produce cold water.All the other all are to be full of cooling water except that the solution reservoir in the solution circulation loop at this moment, and solution is stored in the solution holder, does not participate in the circulation of solution loop.After cooling water comes out from cooling tower in solution circulation loop, directly enter variable frequency pump by second-hand's valve, after the variable frequency pump pressurization, cooling water enters the electric three passes control valve, electric three passes control valve Close All enters the flow of regenerator, and cooling water directly enters in second heat exchanger without regenerator, absorbs heat condensation of refrigerant is become liquid, enter cooling tower after self temperature raises and carry out with air that heat is wet to be exchanged, flow out from cooling tower once more after the cooling water temperature reduction.
When air source solution type heat pump winter heating moves, refrigerant circulation loop is that the refrigerant gas of low-temp low-pressure in the gas-liquid separator is sucked by compressor, the compression back is discharged and is entered regenerator by first magnetic valve, cold-producing medium is emitted heat in regenerator, weak solution is regenerated, enter the flow of weak solution in the regenerator by the adjusting of control electric three passes control valve, can guarantee that cold-producing medium only emits sensible heat in regenerator, lower the temperature and not condensation, refrigerant gas comes out to enter first heat exchanger by cross valve from regenerator, cold-producing medium is emitted heat in first heat exchanger, produce hot water, simultaneously self be condensed into liquid, then successively by first check valve, reservoir, filter, electric expansion valve, entered in second heat exchanger through the 4th check valve with gas-liquid two-phase after the electric expansion valve throttling step-down, in second heat exchanger, evaporate heat absorption, cold-producing medium evaporates the back fully and enters gas-liquid separator from second heat exchanger cross valve that comes out to flow through, sucked by compressor once more at last, be compressed again and participate in circulation.Charging solution in the solution circulation loop this moment, solution enters the solution reservoir by first-hand valve after cooling tower comes out, again through entering variable frequency pump behind the 3rd hand valve, solution enters the electric three passes control valve after the variable frequency pump pressurization, solution is divided into two parts, a part enters regenerator, solution is transpiring moisture therein, concentration improves, solution mixes with another part solution through the regeneration back, enters second heat exchanger, carries out heat exchange with cold-producing medium, emit heat, self temperature reduces, and solution enters cooling tower after second heat exchanger comes out, and (solution temperature is lower than air themperature to the solution of high concentration low temperature, the partial pressure of water vapor of solution is smaller or equal to airborne partial pressure of water vapor) in cooling tower, carry out the wet exchange of heat with air, solution absorbs heat from air, water in air steam condenses in solution, and the temperature of solution raises, concentration decreases, and flows out from cooling tower then to participate in circulation once more.
Beneficial effect: the air source solution type heat pump that the utility model proposes, can realize water-cooled handpiece Water Chilling Units function in summer, compare the wind-cooled cold-water unit, have the higher coefficient of performance.
Air source solution type heat pump can be realized heating in the winter time, has solved original handpiece Water Chilling Units equipment idle problem in winter, has improved utilization rate of equipment and installations, has reduced initial cost.
Air source solution type heat pump is compared with existing air source heat pump, under same environment temperature, has the higher coefficient of performance.
When moving in the winter time, air source solution type heat pump compares with existing air source heat pump, evaporator surface can frosting, thoroughly solve inevitably frosting problem of air source heat pump institute, improved the coefficient of performance and the heating efficiency of heat pump, increased the life-span and the reliability of system simultaneously.
Description of drawings
Accompanying drawing 1 is the air source/water cooling heat pump device schematic diagram of the utility model based on solution.
Have among the above figure: compressor 1; First magnetic valve 2; Second magnetic valve 3; Regenerator 4; Cross valve 5; First heat exchanger 6; Cold or hot water inlet 61; Cold or hot water outlet 62; First check valve 7; Second check valve 8; Reservoir 9; Filter 10; Electric expansion valve 11; The 3rd check valve 12; The 4th check valve 13; Second heat exchanger 14; Gas-liquid separator 15; Cooling tower 16; First-hand valve 17; Second-hand's valve 18; The 3rd hand valve 19; Solution reservoir 20; Variable frequency pump 21; Electric three passes control valve 22.
The specific embodiment
1 further specify the specific embodiment of the present utility model in conjunction with the accompanying drawings: air source solution type heat pump of the present invention comprises refrigerant circulation loop and solution circulation loop; Concrete method of attachment is that the output of compressor 1 is divided into two-way, first magnetic valve 2 of leading up to meets the input a of regenerator 4, meet the input a of cross valve 5 after the output b merging of another road by second magnetic valve 3 and regenerator 4, the output b of cross valve 5 meets the input a of first heat exchanger 6, the output b of first heat exchanger 6 connects the input of reservoir 9 by first check valve 7, the output b of first heat exchanger 6 is also by first check valve 7 simultaneously, second check valve 8 meets the input a of second heat exchanger 14, the output of reservoir 9 connects the input of electric expansion valve 11 by filter 10, the output of electric expansion valve 11 meets the input a of second heat exchanger 14 by the 4th check valve 13, the output of electric expansion valve 11 also meets the output b of first heat exchanger 6 by the 3rd check valve 12 simultaneously, the output b of second heat exchanger 14 meets the input c of cross valve 5, the output d of cross valve 5 connects the input of gas-liquid separator 15, and the input of the output termination compressor 1 of gas-liquid separator 15;
Summer is during refrigerating operaton: the low-temperature low-pressure refrigerant gas that comes out from gas-liquid separator 15 is compressed by compressor 1, enter second heat exchanger 14 by second magnetic valve 3 (this moment, first magnetic valve 2 cut out) and cross valve 5 after discharging and carry out heat exchange with cooling water, condensation of refrigerant is emitted heat and is become liquid, again successively through second check valve 8, reservoir 9, filter 10, electric expansion valve 11 backs are become the gas-liquid two-phase of low-temp low-pressure by throttling, enter first heat exchanger 6 through the 3rd check valve 12, the cold-producing medium evaporation of in first heat exchanger 6, absorbing heat, produce cold water, becoming overheated gas after cold-producing medium evaporates fully comes out to enter gas-liquid separator 15 by cross valve 5 from first heat exchanger 6, being inhaled into compressor 1 once more compresses, finish kind of refrigeration cycle, produce cold water.All the other all are full of cooling water except that solution reservoir 20 in the solution circulation loop at this moment, and solution is stored in the solution holder 20, does not participate in the circulation of solution loop.Cooling water is cooled in solution circulation loop after the tower cooling, come out from cooling tower 16, directly enter variable frequency pump 21 (this moment, first-hand valve 17 and the 3rd hand valve 19 were closed) by second-hand's valve 18, after variable frequency pump 21 pressurizations, water enters electric three passes control valve 22, this moment, electric three passes control valve 22 Close Alls entered the flow of regenerator 4, cooling water directly enters in second heat exchanger 14 without regenerator 4 and carries out heat exchange with cold-producing medium, absorb heat, condensation of refrigerant is become liquid, self temperature raises, and enters cooling tower 16 then and carries out heat exchange with air, and simultaneous temperature reduces.
Air source solution type heat pump winter heating operation: the low-temperature low-pressure refrigerant steam of returning from gas-liquid separator 15 becomes the superheated vapor of HTHP after by compressor 1 compression, entered regenerator 4 (this moment, second magnetic valve 3 cut out) through first magnetic valve 2 after compressor 1 discharge, the refrigerant vapour of HTHP is emitted a part of heat (mainly being the sensible heat of compressor 1 discharging refrigerant high temperature) weak solution in the regenerator 4 is regenerated in regenerator 4, cold-producing medium cooling simultaneously, enter the flow of weak solution in the regenerator 4 by control, cold-producing medium is only lowered the temperature and not condensation in regenerator 4, refrigerant gas comes out to enter first heat exchanger 6 by cross valve 5 from regenerator 4, cold-producing medium is emitted heat and is condensed into liquid in first heat exchanger 6, produce hot water simultaneously, refrigerant liquid is then successively by first check valve 7, reservoir 9, filter 10, electric expansion valve 11, through entering in second heat exchanger 14 through the 4th check valve 13 with gas-liquid two-phase after the electric expansion valve 11 throttling step-downs, in second heat exchanger 14, carry out heat exchange with solution, the heat of cold-producing medium absorbent solution evaporates, and becomes gas.Cold-producing medium evaporates the back fully and comes out to enter gas-liquid separator 15 by cross valve 5 from second heat exchanger 14, is sucked by compressor 1 once more at last, and compression participates in circulation again.
Solution abrim in the solution loop when heating, solution carries out the wet exchange of heat with air in cooling tower 16, the concentration that is lower than air themperature and regulator solution by the control solution temperature realizes partial pressure of water vapor in the solution smaller or equal to airborne partial pressure of water vapor, thus guarantee solution can be from cooling tower 16 air draw heat.After coming out from cooling tower 16, solution enters solution reservoir 20 (second-hand's valve 18 cuts out at this moment) by first-hand valve 17, again through entering variable frequency pump 21 behind the 3rd hand valve 19, solution enters electric three passes control valve 22 after variable frequency pump 21 pressurizations, solution is divided into two parts, part solution enters regenerator 4, solution is transpiring moisture therein, concentration improves, realize regeneration, concentrated solution is come out from regenerator, and the back is mixed into second heat exchanger 14 with another part solution and cold-producing medium carries out heat exchange, solution is emitted heat, and self temperature reduces, and solution enters cooling tower 16 after second heat exchanger comes out, in cooling tower 16, carry out the wet exchange of heat once more with air, temperature reduces, and concentration reduces, thus circulation once more.
Solution in cooling tower from air the key of draw heat be: the solution minimum temperature that 1, guarantee to participate in circulation is higher than the freezing point temperature of solution, thereby guarantee that solution solidification phenomenon can not occur in the operation of heat pump process, the present invention is by before regulating operation of heat pump, and the solution concentration of injecting solution circulation loop can realize; 2, the solution temperature that enters cooling tower is lower than air themperature, thereby the assurance heat is passed to solution from air, the present invention regulates the liquid inventory that enters second heat exchanger by the frequency (promptly controlling the rotating speed of variable frequency pump) of control variable frequency pump, thereby guarantee that the solution temperature that enters cooling tower is lower than air themperature (when solution temperature is high, reduce liquid inventory, when solution temperature is too low, increase liquid inventory); 3, in the solution partial pressure of water vapor smaller or equal to airborne partial pressure of water vapor, make water vapour from air, enter solution, water recovery is emitted heat and is given solution (the partial pressure difference of water vapour is the driving force of water vapor diffusion), the size of partial pressure of water vapor depends on the concentration of solution in solution temperature one timing solution, and the concentration of control solution also just can realize the control of the partial pressure of water vapour in the solution.The present invention passes through control electric three passes control valve, regulates the liquid inventory that enters regenerator, thereby realizes the control to solution concentration, and solution concentration is than solution regeneration amount in hour increasing regenerator, and solution concentration reduces solution regeneration amount in the regenerator when big.
When winter heating operation switches to summer during refrigerating operaton, the solution in the solution loop all can be recovered in the solution reservoir, close first-hand valve and the 3rd hand valve after, again solution loop is filled water and gets final product.When summer refrigerating operaton switch to winter heating when operation, cooling water in original solution loop is drained, close second-hand's valve, open first-hand valve and the 3rd hand valve, emit that solution gets final product in the solution reservoir.
Claims (4)
1. the air source/water cooling heat pump device based on solution is characterized in that this device comprises refrigerant circulation loop and solution circulation loop; Refrigerant circulation loop comprises compressor (1), first magnetic valve (2), second magnetic valve (3), regenerator (4), cross valve (5), first heat exchanger (6), first check valve (7), second check valve (8), the 3rd check valve (12), the 4th check valve (13), reservoir (9), filter (10), electric expansion valve (11), second heat exchanger (14), gas-liquid separator (15) and relevant connection pipeline thereof; The output of compressor (1) divides two-way, first magnetic valve (2) of leading up to meets the input a of regenerator (4), meet the input a of cross valve (5) after the output b merging of another road by second magnetic valve (3) and regenerator (4), the output b of cross valve (5) meets the input a of first heat exchanger (6), the output b of first heat exchanger (6) connects the input of reservoir (9) by first check valve (7), the output b of first heat exchanger (6) is also by first check valve (7) simultaneously, second check valve (8) meets the input a of second heat exchanger (14), the output of reservoir (9) connects the input of electric expansion valve (11) by filter (10), electric expansion valve (11) output meets the input a of second heat exchanger (14) by the 4th check valve (13), the output of electric expansion valve (11) also meets the output b of first heat exchanger (6) by the 3rd check valve (12) simultaneously, the output b of second heat exchanger (14) meets the input c of cross valve (5), the output d of cross valve (5) connects the input of gas-liquid separator (15), and the input of the output termination compressor (1) of gas-liquid separator (15);
Solution circulation loop comprises cooling tower (16), solution reservoir (20), first-hand valve (17), second-hand's valve (18), the 3rd hand valve (19), variable frequency pump (21), electric three passes control valve (22), regenerator (4), second heat exchanger (14) and relevant connection pipeline thereof; Cooling tower (16) outlet is divided into two-way, the first-hand valve (17) of leading up to connects solution reservoir (20) inlet, the outlet of solution reservoir (20) connects the inlet of variable frequency pump (21) by the 3rd hand valve (19), and the second-hand's valve (18) of leading up in addition also connects the inlet of variable frequency pump (21).Variable frequency pump (21) outlet connects electric three passes control valve (22) inlet, one way outlet of electric three passes control valve (22) meets the solution input port c of regenerator (4), meet the solution input port c of second heat exchanger (14) after the solution delivery outlet d of an other way outlet and regenerator (4) merges, the solution delivery outlet d of second heat exchanger (14) links to each other with the input port of cooling tower (16).
2, the air source/water cooling heat pump device based on solution according to claim 1, the solution temperature that it is characterized in that cooling tower (16) solution inlet port are by regulating variable frequency pump (21) frequency, change the flow of variable frequency pump (21) and realize.
3, the air source/water cooling heat pump device based on solution according to claim 1, the solution concentration that it is characterized in that cooling tower (16) solution inlet port is to realize by regulating electronic control triple valve (22), change the liquid inventory that enters the middle regeneration of regenerator (4).
4, the air source/water cooling heat pump device based on solution according to claim 1 is characterized in that the origin of heat of solution regeneration in the regenerator (4) is the heat of the superheat section of compressor (1) institute discharging refrigerant.
Priority Applications (1)
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CNU2008200307607U CN201149400Y (en) | 2008-01-11 | 2008-01-11 | Air source/water cold-hot pump device based on solution |
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CNU2008200307607U CN201149400Y (en) | 2008-01-11 | 2008-01-11 | Air source/water cold-hot pump device based on solution |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101776353A (en) * | 2010-02-10 | 2010-07-14 | 东南大学 | Cooling tower-based solution type cold and hot water unit |
CN102853576A (en) * | 2012-09-29 | 2013-01-02 | 浙江理工大学 | Boiling regeneration type heat pump system for heat source tower |
CN104390300A (en) * | 2014-11-24 | 2015-03-04 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
CN104456798B (en) * | 2014-12-12 | 2017-09-26 | 南京工业大学 | Heat pump driving solution humidity regulating and domestic hot water preparing system capable of realizing energy balance |
CN113432342A (en) * | 2021-07-19 | 2021-09-24 | 唐先初 | Air source overlapping type heat pump equipment |
-
2008
- 2008-01-11 CN CNU2008200307607U patent/CN201149400Y/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101776353A (en) * | 2010-02-10 | 2010-07-14 | 东南大学 | Cooling tower-based solution type cold and hot water unit |
CN102853576A (en) * | 2012-09-29 | 2013-01-02 | 浙江理工大学 | Boiling regeneration type heat pump system for heat source tower |
CN102853576B (en) * | 2012-09-29 | 2014-11-26 | 浙江理工大学 | Boiling regeneration type heat pump system for heat source tower |
CN104390300A (en) * | 2014-11-24 | 2015-03-04 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
CN104390300B (en) * | 2014-11-24 | 2017-02-22 | 东南大学 | Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter |
CN104456798B (en) * | 2014-12-12 | 2017-09-26 | 南京工业大学 | Heat pump driving solution humidity regulating and domestic hot water preparing system capable of realizing energy balance |
CN113432342A (en) * | 2021-07-19 | 2021-09-24 | 唐先初 | Air source overlapping type heat pump equipment |
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Granted publication date: 20081112 Termination date: 20100211 |