CN103791652B - A kind of two temperature-heat-source heat pump - Google Patents
A kind of two temperature-heat-source heat pump Download PDFInfo
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- CN103791652B CN103791652B CN201410013567.2A CN201410013567A CN103791652B CN 103791652 B CN103791652 B CN 103791652B CN 201410013567 A CN201410013567 A CN 201410013567A CN 103791652 B CN103791652 B CN 103791652B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 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
- 230000008020 evaporation Effects 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000003303 reheating Methods 0.000 claims description 4
- 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 11
- 238000011084 recovery Methods 0.000 description 9
- 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
- 238000005057 refrigeration Methods 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
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 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
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 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 kind of two temperature-heat-source heat pump, comprise the compressor connected 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 and use expansion valve and cooling check valve, air-treatment heat exchanger is in series with cooling expansion valve parallel with one another and heats uses check valve.Heat pump of the present invention, owing to have employed two thermal source, can reduce heat pump heat transfer temperature difference and compression ratio, improves efficiency.
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 inverse periodic duty, only need input a small amount of high-grade energy just can release several times to hot environment heat from low temperature environment heat absorption, 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 when air conditioner refrigerating, cooling, the dehumidification process lotus root of air are closed, the cooling of air, the low-temperature receiver dehumidified by single temperature are realized by cooling, this makes heat transfer temperature difference between heat pump fluid and surrounding medium larger, between heat pump high and low temperature thermal source, pressure reduction is higher, thus have impact on the efficiency of heat pump; Secondly, current heat pump techniques can not realize the recovery to air draft energy, condensate water cold; Patent of invention ZL200410054061.2 proposes a kind of half cascade type heat pump cold and heat supply system, can realize independent temperature-humidity control, the wet independent process of heat, improve heat pump to the adaptability of environment.But secondary source pump have employed the evaporator/condenser of series connection in this invention, be unfavorable for the uniform distribution of cold-producing medium, and air handling process still for conventional to cool, lotus root of dehumidifying closes process, efficiency is still not high.Patent of invention ZL200510029140.2 proposes the heat pump type air conditioning system of band solution absorption dehydration function, efficient dehumidifying can be realized, but solution dehumidification equipment volume is larger, system flow is longer, more complicated, and solution has been corrosive to equipment requirement more high disadvantages affect the actual effect of its engineer applied.
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 runs, hot humidity load can process respectively, during 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, independent temperature-humidity control, hot humidity load independent process and air draft total heat recovery etc. can be realized, thus improve 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 pump, comprise the compressor connected 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 and use 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 and do not work with check valve with expansion valve and heating, heating under state, cooling expansion valve and cooling check valve do not work, connected by unidirectional drying pipeline between two groups of heat exchange manifolds.
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 and flows through the 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 regenerator of air-treatment heat exchanger wherein side is heat pipe evaporator section, opposite side be heat pipe condenser section, air flow through air-treatment heat exchanger cooling, dehumidifying before be introduced into heat pipe evaporator section by precooling, dehumidifying, the air flowing through air-treatment heat exchanger is lowered the temperature, dehumidify after flow through heat pipe condenser section again by reheating.
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 spreads 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 respectively by check valve.
The present invention adopts two heat exchangers (evaporator/condenser) in parallel in the side of heat pump, one of them is water source heat exchanger (evaporator/condenser), carries out heat exchange (cold-producing medium condensation heat release wherein or evaporation endothermic) with air-conditioning system backwater or other water of originating; Another is air exhaust heat exchange device, carries out heat exchange with air-conditioning system air draft, can absorb heat or to air draft heat release from air draft.And the opposite side of heat pump only establishes a heat exchanger (evaporator/condenser), but set up one group of Recuperative heat exchanger.When heat pump air conditioner freezes, regenerator carries out reheating to air-supply, and evaporator with heat pump is mainly carried out dehumidify (process latent heat), and sensible heat then by miscellaneous equipment process, thus realizes independent temperature-humidity control, the process respectively of heat, humidity load and sensible heat and latent heat; Meanwhile, by condensate water evaporating again in air exhaust heat exchange device (condenser) surface or air draft, the total heat recovery of air draft can be realized, improve heat pump efficiency, economize energy; When heating, heat pump absorbs heat by air exhaust heat exchange device (evaporimeter) by water on the one hand from air draft, realize total heat recovery, absorb heat in air-conditioning backwater or other water, realize heating the heat exchanger that opposite side can adopt one or more parallel connection, under freezing, heating different mode, can be used as evaporator/condenser run, owing to have employed two thermal 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 two groups of heat exchange manifold tandem connection diagrams;
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.
Detailed description of the invention
Below in conjunction with Fig. 1 system architecture of the present invention made and illustrating.Heat pump type air conditioning system of the present invention comprises the compressor 1 connected 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 and liquid medium carry out heat exchange, air exhaust heat exchange device 10 and air dielectric carry out heat exchange, 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 and use 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, 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, 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, first check valve 15.Connected by unidirectional drying pipeline between two groups of heat exchange manifolds, 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 respectively by check valve, these check valves are respectively the 4th check valve 23,5th check valve 24,6th check valve 27,7th check valve 28, under refrigerating state, heat and do not work with check valve with expansion valve and heating, heating under state, cooling expansion valve and cooling check valve do not work.
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, the gases at high pressure point two-way after cross valve 4 of compressor 1 discharge enter water source heat exchanger 9(condenser respectively) 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 is passed to air draft and condensate water, thus realizes light modulation independent process and total heat recovery on summerday; Cold-producing medium is after in two heat exchangers, condensation heat release becomes liquid, reservoir 25 is entered respectively through the second check valve 19, the 3rd check valve 21 and the 4th check valve 23, drying filter 26, the 7th check valve 28 again, air-treatment heat exchanger 12(evaporimeter is entered by the first expansion valve 16 reducing pressure by regulating flow) evaporation endothermic, air is lowered the temperature, dehumidifies, the condensate water that dehumidifying produces delivers in air draft or air exhaust heat exchange device 10 surface is evaporated again, thus realizes total heat recovery; Cold-producing medium is at air-treatment heat exchanger 12(evaporimeter) in gasification after, enter vapour liquid separator 2 through cross valve 4 and enter compressor 1, discharge after being compressed to HTHP shape; Air flow through air-treatment heat exchanger 12 cool, dehumidify before be introduced into heat pipe evaporator section 32 by precooling, dehumidifying, the working medium of heat pipe flow to heat pipe condenser section 31 condensation heat release after then absorbing heat and vaporizing, and after the air flowing through air-treatment heat exchanger 12 lowered the temperature, dehumidifies, flow through heat pipe condenser section 31(regenerator again) by reheating, the working medium of heat pipe, after this is condensed into liquid, utilizes gravity or capillary force to return heat pipe evaporator section 32.
Under heating mode, high temperature, the gases at high pressure of compressor 1 discharge enter air-treatment heat exchanger 12(condenser through cross valve 4), cold-producing medium releases heat at this, is condensed into liquid after heating clamber inner air and outer air; The cold-producing medium being condensed into liquid enters reservoir 25 through the first check valve 15, the 5th check valve 24 more respectively, 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 flow), absorb heat from air-conditioning system backwater or other water source, another road enters air exhaust heat exchange device 10(evaporimeter after the second expansion valve 20 reducing pressure by regulating flow), absorb heat from air conditioning air exhaust, realize total heat recovery; After liquid refrigerant absorbs heat in two heat exchangers, evaporation becomes gas, then enter gas-liquid separator 2 through cross valve 4, then sucked by compressor 1, discharge after being compressed to HTHP shape.
In the embodiment depicted in figure 2, regenerator adopts the loop of heat pipe condenser section 31, heat pipe evaporator section 32 and circulating pump 33 composition, 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 heat absorption evaporation of air exhaust heat exchange device 10 surface, realizes total heat recovery; As distortion embodiment illustrated in fig. 3, air-treatment heat exchanger 12(evaporimeter) and air exhaust heat exchange device 10(condenser) freely can arrange according to special case, 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, flow through air exhaust heat exchange device 10(condenser again) absorb heat, evaporate, realize total heat recovery.
Claims (8)
1. a two temperature-heat-source heat pump, comprise the compressor connected 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, described liquid medium is underground water, river, lake water or air-conditioning system backwater, 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 and use 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 and do not work with check valve with expansion valve and heating, heating under state, cooling expansion valve and cooling check valve do not work, connected by unidirectional drying pipeline between two groups of heat exchange manifolds.
2. the two temperature-heat-source heat pump 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 pump 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 and flows through the heat absorption of air exhaust heat exchange device, evaporation again.
4. the two temperature-heat-source heat pump of one according to claim 1, is characterized in that: described air-treatment heat exchanger both sides are provided with regenerator.
5. the two temperature-heat-source heat pump of one according to claim 4, it is characterized in that: described regenerator is heat pipe-type structure, the regenerator of air-treatment heat exchanger wherein side is heat pipe evaporator section, opposite side be heat pipe condenser section, air flow through air-treatment heat exchanger cooling, dehumidifying before be introduced into heat pipe evaporator section by precooling, dehumidifying, the air flowing through air-treatment heat exchanger is lowered the temperature, dehumidify after flow through heat pipe condenser section again by reheating.
6. the two temperature-heat-source heat pump of the one according to claim 1 to 5 any one, is characterized in that: 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.
7. the two temperature-heat-source heat pump of one according to claim 6, is characterized in that: the condensate water that air-treatment heat exchanger produces spreads the heat absorption evaporation of air exhaust heat exchange device surface through circulating pump.
8. the two temperature-heat-source heat pump of the one according to claim 1 to 5 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 respectively by check valve.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN201410013567.2A CN103791652B (en) | 2014-01-13 | 2014-01-13 | A kind of two temperature-heat-source heat pump |
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| CN103791652A CN103791652A (en) | 2014-05-14 |
| CN103791652B true CN103791652B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN109945544B (en) * | 2019-03-12 | 2023-07-25 | 天津大学 | Enhanced vapor injection CO 2 Three-backheating cooling heat pump/refrigerating system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248319A (en) * | 2005-08-23 | 2008-08-20 | 开利公司 | System reheating control using width pulse modulation |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7287394B2 (en) * | 2004-09-16 | 2007-10-30 | Carrier Corporation | Refrigerant heat pump with reheat circuit |
| JP5125337B2 (en) * | 2007-09-07 | 2013-01-23 | パナソニック株式会社 | Ventilation air conditioner |
| KR101250769B1 (en) * | 2011-04-06 | 2013-04-03 | 한국생산기술연구원 | Hybrid air conditioning system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101248319A (en) * | 2005-08-23 | 2008-08-20 | 开利公司 | System reheating control using width pulse modulation |
| 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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