CN103791652A - Double-heat-source heat pump system - Google Patents
Double-heat-source heat pump system Download PDFInfo
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- CN103791652A CN103791652A CN201410013567.2A CN201410013567A CN103791652A CN 103791652 A CN103791652 A CN 103791652A CN 201410013567 A CN201410013567 A CN 201410013567A CN 103791652 A CN103791652 A CN 103791652A
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- heat
- air
- heat exchanger
- treatment
- heat exchange
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- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000004378 air conditioning Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 15
- 238000001704 evaporation Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention discloses a double- heat-source heat pump system which comprises a compressor, a gas-liquid separator and a four-way valve. The compressor, the gas-liquid separator and the four-way valve are connected through a pipeline. The four-way valve is connected with two heat exchanger pipelines. The first heat exchanger pipeline comprises a water-source heat exchanger and an exhaust-air heat exchanger which are connected in parallel. The water-source heat exchanger exchanges heat with liquid media, and the exhaust-air heat exchanger exchanges heat with air media. The second heat exchanger pipeline comprises an air-processing heat exchanger. The water-source heat exchanger and the exhaust-air heat exchanger are connected with expansion valves for heating and check valves for cooling in series, wherein the expansion valves and the check valves are connected in parallel. The air-processing heat exchanger is connected with an expansion valve for cooling and a check valve for heating in series, wherein the expansion valve and the check valve are connected in parallel. Since the heat pump system adopts double heat sources, heat transfer temperature difference and compression ratio of a heat pump can be reduced, and energy efficiency can be improved.
Description
Technical field
The present invention relates to a kind of heat pump type air conditioning system, can be used for space heating, air-conditioning, ventilation etc.
Background technology
Heat pump is a kind of heat engine of contrary periodic duty, only need a small amount of high-grade energy of input just can emit from low temperature environment heat absorption the heat of several times to hot environment, having refrigeration, heat-production functions, be widely used in premises heating, air-conditioning etc., is a kind of firing equipment efficiently.Current heat pump is in the time of air conditioner refrigerating, cooling, the dehumidification process lotus root of air are closed, the cooling of air, dehumidifying by the low-temperature receiver of single temperature by cooling realization, this makes between heat pump fluid and surrounding medium heat transfer temperature difference larger, between heat pump high and low temperature thermal source, pressure reduction is higher, thereby has affected the efficiency of heat pump; Secondly, heat pump techniques can not be realized the recovery to air draft energy, condensate water cold at present; Patent of invention ZL200410054061.2 has proposed a kind of half cascade type heat pump cold and heat supply system, can realize that humiture is independently controlled, the wet independent process of heat, improves the adaptability of heat pump to environment.But in this invention, secondary source pump has adopted the evaporator/condenser of series connection, is unfavorable for the uniform distribution of cold-producing medium, and air handling process still closes process for the conventional lotus root that cools, dehumidifies, and efficiency is still not high.Patent of invention ZL200510029140.2 has proposed the heat pump type air conditioning system with solution absorption dehydration function, can realize efficient dehumidifying, but solution dehumidification equipment volume is larger, system flow is long, more complicated, be corrosive to the more high disadvantages affect of the equipment requirement actual effect of its engineering application of solution.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of two temperature-heat-source heat pump, when heat pump refrigerating operation, hot humidity load can be processed respectively, when operation, between heat pump high and low temperature thermal source, pressure reduction reduces to some extent, between working medium and surrounding medium, heat transfer temperature difference reduces, can realize that humiture is independently controlled, hot humidity load independent process and the full recuperation of heat of air draft etc., thereby improved heat pump efficiency.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of two temperature-heat-source heat pumps, comprise the compressor connecting by pipeline, gas-liquid separator and cross valve, described cross valve is connected with two groups of heat exchange manifolds, first group of heat exchange manifold comprises water source heat exchanger in parallel and air exhaust heat exchange device, water source heat exchanger and liquid medium carry out heat exchange, air exhaust heat exchange device and air dielectric carry out heat exchange, second group of heat exchange manifold comprises air-treatment heat exchanger, water source heat exchanger and air exhaust heat exchange device are in series with parallel with one another heating with expansion valve and cooling check valve, air-treatment heat exchanger is in series with cooling expansion valve parallel with one another and heats with check valve, under refrigerating state, heat with expansion valve and heat and do not work with check valve, heating under state, cooling expansion valve and cooling check valve are not worked, between two groups of heat exchange manifolds, connect by unidirectional drying pipeline.
Preferably, described air dielectric is air conditioning air exhaust.
Preferably, the condensed water that air-treatment heat exchanger produces sprays in air conditioning air exhaust, the flow through heat absorption of air exhaust heat exchange device, evaporation again.
Preferably, described liquid medium is underground water, river, lake water or air-conditioning system backwater.
Preferably, described air-treatment heat exchanger both sides are provided with regenerator.
Preferably, described regenerator is heat pipe-type structure, the air-treatment heat exchanger wherein regenerator of a side is heat pipe evaporator section, opposite side be heat pipe condenser section, air is cooling at the air-treatment heat exchanger of flowing through, be introduced into heat pipe evaporator section by precooling, dehumidifying before dehumidifying, and the air that flows through air-treatment heat exchanger is flowed through heat pipe condenser section again by hot again after being lowered the temperature, dehumidify.
Preferably, air-treatment heat exchanger is positioned on air exhaust heat exchange device, and the condensate water that air-treatment heat exchanger produces flows automatically to air-treatment heat exchanger surface heat absorption evaporation.
Preferably, the condensate water that air-treatment heat exchanger produces is spread the heat absorption evaporation of air exhaust heat exchange device surface through circulating pump.
Preferably, described unidirectional drying pipeline comprises interconnective reservoir and device for drying and filtering, and described reservoir and device for drying and filtering are connected with two groups of heat exchange manifolds by check valve respectively.
The present invention adopts two heat exchangers in parallel (evaporator/condenser) in a side of heat pump, one of them is water source heat exchanger (evaporator/condenser), carries out heat exchange (cold-producing medium condensation heat release therein or evaporation endothermic) with the water in air-conditioning system backwater or other source; Another is air exhaust heat exchange device, carries out heat exchange with air-conditioning system air draft, can from air draft, absorb heat or to air draft heat release.And the opposite side of heat pump is only established a heat exchanger (evaporator/condenser), but set up one group of Recuperative heat exchanger.In the time that heat pump air conditioner freezes, regenerator carries out heat again to air-supply, and evaporator with heat pump is mainly dehumidified (processing latent heat), and sensible heat, by miscellaneous equipment processing, is independently controlled thereby realize humiture, and heat, humidity load are the processing respectively of sensible heat and latent heat; Meanwhile, the evaporating again in air exhaust heat exchange device (condenser) surface or air draft by condensate water, can realize the full recuperation of heat of air draft, improves heat pump efficiency, saves the energy; While heating, heat pump can absorb heat by air exhaust heat exchange device (evaporimeter) by water on the one hand from air draft, realize full recuperation of heat, in air-conditioning backwater or other water, absorb heat, realization heats opposite side and can adopt the heat exchanger of one or more parallel connections, in refrigeration, heat under different mode and can be used as evaporator/condenser operation, owing to having adopted two thermals source, the present invention can reduce heat pump heat transfer temperature difference and compression ratio, improves efficiency.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is systematic schematic diagram of the present invention;
Fig. 2 is connected in series schematic diagram before and after two groups of heat exchange manifolds;
Fig. 3 is two groups of upper and lower angled layout schematic diagrames of heat exchanger.
In figure, 1. compressor, 2. gas-liquid separator, 4. cross valve, 9. water source heat exchanger (evaporator/condenser), 10. air exhaust heat exchange device (evaporator/condenser), 12. air-treatment heat exchangers (evaporator/condenser), 15. first check valves, 19. second check valves, 21. the 3rd check valves, 23. the 4th check valves, 24. the 5th check valves, 27. the 6th check valves, 28. the 7th check valves, 16. first expansion valves, 20. second expansion valves, 22 the 3rd expansion valves, 25. reservoirs, 26. devices for drying and filtering, 31. heat pipe condenser sections, 32. heat pipe evaporator sections, 33. circulating pumps.
The specific embodiment
Below in conjunction with Fig. 1, system architecture of the present invention is made and being illustrated.Heat pump type air conditioning system of the present invention comprises the compressor 1 connecting by pipeline, gas-liquid separator 2 and cross valve 1, described cross valve 1 is connected with two groups of heat exchange manifolds, first group of heat exchange manifold comprises water source heat exchanger 9 in parallel and air exhaust heat exchange device 10, water source heat exchanger 9 carries out heat exchange with liquid medium, air exhaust heat exchange device 10 carries out heat exchange with air dielectric, second group of heat exchange manifold comprises air-treatment heat exchanger 12, water source heat exchanger 9 and air exhaust heat exchange device 10 are in series with parallel with one another heating with expansion valve and cooling check valve, air-treatment heat exchanger 12 has cooling expansion valve parallel with one another and heats with check valve, wherein, heating of connecting with water source heat exchanger 9 is the 3rd expansion valve 22 with expansion valve and cooling check valve, the 3rd check valve 21, heating of connecting with air exhaust heat exchange device 10 is the second expansion valve 20 with expansion valve and cooling check valve, the second check valve 19, heating of connecting with air-treatment heat exchanger 12 is the first expansion valve 16 with expansion valve and cooling check valve, the first check valve 15.Between two groups of heat exchange manifolds, connect by unidirectional drying pipeline, described unidirectional drying pipeline comprises interconnective reservoir 25 and device for drying and filtering 26, described reservoir 25 and device for drying and filtering 26 are connected with two groups of heat exchange manifolds by check valve respectively, these check valves are respectively the 4th check valve 23, the 5th check valve 24, the 6th check valve 27, the 7th check valve 28, under refrigerating state, heat with expansion valve and heat and do not work with check valve, heating under state, cooling expansion valve and cooling check valve are not worked.
Below in conjunction with the system architecture shown in Fig. 1 to refrigeration of the present invention and heat principle and make and illustrating:
Under refrigeration mode, high temperature, gases at high pressure point two-way after cross valve 4 that compressor 1 is discharged enter respectively water source heat exchanger 9(condenser) and air exhaust heat exchange device 10(condenser), in water source heat exchanger, part sensible heat is passed to air-conditioning system backwater or other water source, in air exhaust heat exchange device, part sensible heat, compressor institute wasted work are passed to air draft and condensate water, thereby realize light modulation independent process and full recuperation of heat on summerday; Cold-producing medium condensation heat release in two heat exchangers becomes after liquid, enter reservoir 25 through the second check valve 19, the 3rd check valve 21 and the 4th check valve 23 respectively, drying filter 26, the 7th check valve 28 again, enter air-treatment heat exchanger 12(evaporimeter by the first expansion valve 16 reducing pressure by regulating flows) evaporation endothermic, air is lowered the temperature, dehumidified, the condensate water that dehumidifying produces delivers in air draft or evaporate again on air exhaust heat exchange device 10 surfaces, thereby realizes full recuperation of heat; Cold-producing medium is at air-treatment heat exchanger 12(evaporimeter) in after gasification, enter vapour liquid separator 2 through cross valve 4 and enter compressor 1, discharge after being compressed to HTHP shape; Air is cooling at the air-treatment heat exchanger 12 of flowing through, be introduced into heat pipe evaporator section 32 by precooling, dehumidifying before dehumidifying, the working medium of heat pipe flow to heat pipe condenser section 31 condensation heat releases after absorbing heat and vaporizing, and after the air that flows through air-treatment heat exchanger 12 lowered the temperature, dehumidified, the heat pipe condenser section 31(regenerator of flowing through again) by heat again, the working medium of heat pipe is condensed into after liquid at this, utilizes gravity or capillary force to return to heat pipe evaporator section 32.
Under heating mode, high temperature, gases at high pressure that compressor 1 is discharged enter air-treatment heat exchanger 12(condenser through cross valve 4), cold-producing medium is emitted heat at this, after heating clamber inner air and outer air, is condensed into liquid; The cold-producing medium that is condensed into liquid enters reservoir 25 through the first check valve 15, the 5th check valve 24 respectively again, again after drying filter 26, the 6th check valve 27, be divided into two-way, one tunnel enters water source heat exchanger 9(evaporimeter after the 3rd expansion valve 22 reducing pressure by regulating flows), from air-conditioning system backwater or other water source, absorb heat, another road enters air exhaust heat exchange device 10(evaporimeter after the second expansion valve 20 reducing pressure by regulating flows), from air conditioning air exhaust, absorb heat, realize full recuperation of heat; Liquid refrigerant absorbs heat in two heat exchangers, evaporate and become after gas, then enters gas-liquid separator 2 through cross valve 4, then sucked by compressor 1, discharges after being compressed to HTHP shape.
In embodiment illustrated in fig. 2, the loop that regenerator adopts heat pipe condenser section 31, heat pipe evaporator section 32 and circulating pump 33 to form, realizes backheat by heat transferring mediums such as water;
In the embodiment shown in fig. 3, air-treatment heat exchanger 12(evaporimeter) be placed in air exhaust heat exchange device 10(condenser) on, the condensate water that air-treatment heat exchanger 12 produces can flow automatically to the 10 surface heat absorption evaporations of air exhaust heat exchange device, realizes full recuperation of heat; As distortion embodiment illustrated in fig. 3, air-treatment heat exchanger 12(evaporimeter) and air exhaust heat exchange device 10(condenser) can freely arrange according to space situation, air-treatment heat exchanger 12(evaporimeter) condensate water that produces can spread air exhaust heat exchange device 10(condenser through circulating pump 30) surface heat absorption evaporation, or spray in air draft, the air exhaust heat exchange device 10(condenser of flowing through again) heat absorption, evaporation, realize full recuperation of heat.
Claims (9)
1. a two temperature-heat-source heat pump, comprise the compressor connecting by pipeline, gas-liquid separator and cross valve, described cross valve is connected with two groups of heat exchange manifolds, it is characterized in that: first group of heat exchange manifold comprises water source heat exchanger in parallel and air exhaust heat exchange device, water source heat exchanger and liquid medium carry out heat exchange, air exhaust heat exchange device and air dielectric carry out heat exchange, second group of heat exchange manifold comprises air-treatment heat exchanger, water source heat exchanger and air exhaust heat exchange device are in series with parallel with one another heating with expansion valve and cooling check valve, air-treatment heat exchanger is in series with cooling expansion valve parallel with one another and heats with check valve, under refrigerating state, heat with expansion valve and heat and do not work with check valve, heating under state, cooling expansion valve and cooling check valve are not worked, between two groups of heat exchange manifolds, connect by unidirectional drying pipeline.
2. the two temperature-heat-source heat pumps of one according to claim 1, is characterized in that: described air dielectric is air conditioning air exhaust.
3. the two temperature-heat-source heat pumps of one according to claim 2, is characterized in that: the condensed water that air-treatment heat exchanger produces sprays in air conditioning air exhaust, the flow through heat absorption of air exhaust heat exchange device, evaporation again.
4. the two temperature-heat-source heat pumps of one according to claim 1, is characterized in that: described liquid medium is underground water, river, lake water or air-conditioning system backwater.
5. the two temperature-heat-source heat pumps of one according to claim 1, is characterized in that: described air-treatment heat exchanger both sides are provided with regenerator.
6. the two temperature-heat-source heat pumps of one according to claim 5, it is characterized in that: described regenerator is heat pipe-type structure, the air-treatment heat exchanger wherein regenerator of a side is heat pipe evaporator section, opposite side be heat pipe condenser section, air is cooling at the air-treatment heat exchanger of flowing through, be introduced into heat pipe evaporator section by precooling, dehumidifying before dehumidifying, and the air that flows through air-treatment heat exchanger is flowed through heat pipe condenser section again by hot again after being lowered the temperature, dehumidify.
7. according to the two temperature-heat-source heat pumps of the one described in claim 1 to 6 any one, it is characterized in that: air-treatment heat exchanger is positioned on air exhaust heat exchange device, the condensate water that air-treatment heat exchanger produces flows automatically to air-treatment heat exchanger surface heat absorption evaporation.
8. the two temperature-heat-source heat pumps of one according to claim 7, is characterized in that: the condensate water that air-treatment heat exchanger produces is spread the heat absorption evaporation of air exhaust heat exchange device surface through circulating pump.
9. according to the two temperature-heat-source heat pumps of the one described in claim 1 to 6 any one, it is characterized in that: described unidirectional drying pipeline comprises interconnective reservoir and device for drying and filtering, described reservoir and device for drying and filtering are connected with two groups of heat exchange manifolds by check valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013567.2A CN103791652B (en) | 2014-01-13 | 2014-01-13 | A kind of two temperature-heat-source heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013567.2A CN103791652B (en) | 2014-01-13 | 2014-01-13 | A kind of two temperature-heat-source heat pump |
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| Publication Number | Publication Date |
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| CN103791652A true CN103791652A (en) | 2014-05-14 |
| CN103791652B CN103791652B (en) | 2016-01-20 |
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| CN201410013567.2A Expired - Fee Related CN103791652B (en) | 2014-01-13 | 2014-01-13 | A kind of two temperature-heat-source heat pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144041A (en) * | 2017-06-20 | 2017-09-08 | 重庆鸿佳新科技有限公司 | One kind, which is freezed and heated, uses throttle system |
| CN109945544A (en) * | 2019-03-12 | 2019-06-28 | 天津大学 | A kind of air injection enthalpy-increasing CO2Three backheat chiller-heat pumps/refrigeration system |
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| CN101248319A (en) * | 2005-08-23 | 2008-08-20 | 开利公司 | System reheating control using width pulse modulation |
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| KR20120114012A (en) * | 2011-04-06 | 2012-10-16 | 한국생산기술연구원 | Hybrid air conditioning system |
| CN203286809U (en) * | 2013-04-28 | 2013-11-13 | 南京师范大学 | Frostless air source heat pump water heater set |
| CN103759468A (en) * | 2014-01-08 | 2014-04-30 | 浙江理工大学 | Heat pump system with dual-temperature heat sources |
| CN203719238U (en) * | 2014-01-13 | 2014-07-16 | 浙江理工大学 | Dual-temperature heat source heat pump system |
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2014
- 2014-01-13 CN CN201410013567.2A patent/CN103791652B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060053821A1 (en) * | 2004-09-16 | 2006-03-16 | Taras Michael F | Refrigerant heat pump with reheat circuit |
| CN101248319A (en) * | 2005-08-23 | 2008-08-20 | 开利公司 | System reheating control using width pulse modulation |
| JP2009063253A (en) * | 2007-09-07 | 2009-03-26 | Panasonic Corp | Ventilation air conditioner |
| KR20120114012A (en) * | 2011-04-06 | 2012-10-16 | 한국생산기술연구원 | Hybrid air conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144041A (en) * | 2017-06-20 | 2017-09-08 | 重庆鸿佳新科技有限公司 | One kind, which is freezed and heated, uses throttle system |
| CN109945544A (en) * | 2019-03-12 | 2019-06-28 | 天津大学 | A kind of air injection enthalpy-increasing CO2Three backheat chiller-heat pumps/refrigeration system |
| CN109945544B (en) * | 2019-03-12 | 2023-07-25 | 天津大学 | Enhanced vapor injection CO 2 Three-backheating cooling heat pump/refrigerating system |
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| CN103791652B (en) | 2016-01-20 |
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