CN104654656A - Solar heat pump refrigeration and heating system - Google Patents
Solar heat pump refrigeration and heating system Download PDFInfo
- Publication number
- CN104654656A CN104654656A CN201310599386.8A CN201310599386A CN104654656A CN 104654656 A CN104654656 A CN 104654656A CN 201310599386 A CN201310599386 A CN 201310599386A CN 104654656 A CN104654656 A CN 104654656A
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- Prior art keywords
- compressor
- solar
- port
- thermal collector
- outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a solar heat pump refrigeration and heating system. The solar heat pump refrigeration and heating system comprises a direct expansion type solar heat pump system, an air source heat pump system and a heat storage device, and specially comprises an outdoor condenser, a liquid storage tank, a filter, a capillary throttle device, an indoor air cooling heat exchanger, a compressor, a four way reverse valve, a solar thermal collector and a phase change heat storage device, wherein an outlet of the solar thermal collector is connected with an inlet of the phase change heat storage device, an outlet of the phase change heat storage device is connected with the compressor, the compressor is connected with a port a of the four way reverse valve, a port b of the four way reverse valve is connected with the air cooling heat exchanger, an outlet of the liquid storage tank is connected with the compressor and the solar thermal collector, the compressor is connected with a port c of the four way reverse valve, and the compressor is connected with a port d of the four way reverse valve. The solar heat pump refrigeration and heating system not only can use the heat storage device to store redundant solar energy for night use, but also uses a compressor protection device to keep inlet temperature of the compressor at a certain value, improves thermal performance, and prolongs use life of the compressor.
Description
Art
The present invention relates to a kind of solar heat pump refrigerating and heating systems.
Technical background
Solar energy is the energy discharging huge nuclear energy by internal hydrogen atom generation fusion and produce, and from the emittance of the sun, is a kind of emerging regenerative resource.Solar electrical energy generation is widely used in solar street light, solar insect-killing light, solar portable formula system, solar energy movable power supply, Application of Solar Energy product, communication power supply, solar energy lamp, the fields such as solar building.How the regenerative resources such as solar energy being introduced air-conditioning system and solved the instability problem of solar energy by accumulation of energy, by becoming the important channel alleviating China's energy shortage situation, there is important practical value and economic implications.
Direct expanding solar heating pump due to its environmental protection and energy saving, collecting efficiency is high also receives much concern.But the direct expanding solar heating pump stability of a system is poor, easily with season, weather, the such environmental effects such as round the clock.Solar heat pump combines with ice-storage air-conditioning by patent " directly-expanding solar heat-pump air conditioner and hot-water heating system " (publication number CN1515850), the operating temperature of heat collector and the evaporating temperature of cold-producing medium are consistent (close to environment temperature), substantially increase collector efficiency and performance coefficient of heat pump.Although this invention make use of solar heat pump, improve thermal performance (collector efficiency generally can reach 60%-80%, and heat pump COP generally can more than 3), do not consider the impact of environment transfer pair systematic function, system has no compressor protection device.
Summary of the invention
The invention provides a kind of solar heat pump refrigerating and heating systems regenerative apparatus and compressor protection device united two into one.Unnecessary solar energy not only can store by this system, for evening or overcast and rainy, and can overcome ambient influnence, compressor inlet temperature is made to maintain certain value, improve thermal performance, the service life of prolongation compressor, structure is simple, energy-conserving and environment-protective.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of solar heat pump refrigerating and heating systems, comprise direct expanding solar heating pump system, air source heat pump system, regenerative apparatus, specifically comprise outdoor condenser, fluid reservoir, filter, capillary restrictor, indoor air-cooled heat exchanger, compressor, four-way makeshift valve, solar thermal collector, phase transition heat accumulation unit, the outlet of described solar thermal collector is connected with the entrance of phase transition heat accumulation unit through solar energy heating outlet valve, the outlet of phase transition heat accumulation unit is connected with the entrance of compressor, the outlet of compressor is connected with the port a of four-way makeshift valve, the port b of four-way makeshift valve is connected with air-cooled heat exchanger through air-cooled heat exchanger inlet valve, the outlet of fluid reservoir respectively with condenser, solar thermal collector inlet valve connects, solar thermal collector inlet valve is connected with solar thermal collector, condenser is connected with the port c of four-way makeshift valve through outdoor condenser inlet valve, the entrance of compressor is connected with the port d of four-way makeshift valve.
Described phase transition heat accumulation unit comprises Surgery therapy cylinder, finned tube, phase change heat storage material, distribution type joint; Surgery therapy cylinder is the stainless steel cylinder being surrounded by aeroge heat-insulation layer, and two is distribution type joint; Be inserted with some finned tubes in stainless steel cylinder, finned tube and stainless steel cylinder sealed with brazing, lead directly to two distribution type joint, between finned tube, phase change heat storage material is housed.
Described phase change heat storage material is paraffin, and adds the vine tea powder that weight ratio is 15% ~ 20%.
Refrigeration principle of the present invention is identical with typical steam compression type refrigeration circulation theory, is all made up of condenser, evaporimeter, compressor, liquid storage filling, filter, capillary restrictor, is connected into the system of a sealing by pipeline.Complete from evaporimeter the low-pressure steam that heat exchange vaporization produces and shortened into high temperature and high pressure gas by compressor suction pressure, enter condenser and be cooled to liquid, after filter, capillary restrictor, enter evaporimeter, to have absorbed heat kind of refrigeration cycle in evaporator evaporation.
Beneficial effect of the present invention is:
1, adopt solar thermal collector as the evaporimeter of system, working medium absorbs the heat energy of solar radiation in heat collector, reduces thermal-arrest circuit process, makes structure simple, is convenient to install.
2, regenerative apparatus and compressor protection device are united two into one; not only unnecessary solar energy can be stored; for evening or overcast and rainy; and ambient influnence can be overcome make compressor inlet temperature maintain certain value; improve thermal performance; in the service life of prolongation compressor, structure is simple, energy-conserving and environment-protective.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the present invention is further described.
Fig. 1 is directly-expanding solar heat-pump air conditioner system principle schematic diagram.
Fig. 2 is phase transition heat accumulation unit profile.
In figure: 1. solar thermal collector, 2. solar thermal collector outlet valve, 3. solar thermal collector inlet valve, 4. outdoor condenser inlet valve, 5. phase transition heat accumulation unit, 6. compressor, 7. air-cooled heat exchanger inlet valve, 8. air-cooled heat exchanger, 9. condenser, 12. capillary restrictors, 13. filters, 14. fluid reservoirs, 15. four-way makeshift valves, 16. Surgery therapy cylinders, 17. finned tubes, 18. phase change heat storage materials, 19. distribution type joints.
Detailed description of the invention
With reference to accompanying drawing 1 and accompanying drawing 2, a kind of solar heat pump refrigerating and heating systems, comprises direct expanding solar heating pump system, air source heat pump system, regenerative apparatus, specifically comprises outdoor condenser 9, fluid reservoir 14, filter 13, capillary restrictor 12, indoor air-cooled heat exchanger 8, compressor 6, four-way makeshift valve 15, solar thermal collector 1, phase transition heat accumulation unit 5, the outlet of described solar thermal collector 1 is connected through the entrance of solar energy heating outlet valve 2 with phase transition heat accumulation unit 5, the outlet of phase transition heat accumulation unit 5 is connected with the entrance of compressor 6, the outlet of compressor 6 is connected with the port a of four-way makeshift valve 15, the port b of four-way makeshift valve 15 is connected with air-cooled heat exchanger 8 through air-cooled heat exchanger inlet valve 7, the outlet of fluid reservoir 14 respectively with condenser 9, solar thermal collector inlet valve 3 connects, solar thermal collector inlet valve 3 is connected with solar thermal collector 1, condenser 9 is connected with the port c of four-way makeshift valve 15 through outdoor condenser inlet valve 4, and the entrance of compressor 6 is connected with the port d of four-way makeshift valve 15.Solar energy heat pump system system is in parallel with outdoor condenser 9, and winter can provide life hot gas, and summer can realize normal air conditioner refrigerating.
Described phase transition heat accumulation unit comprises Surgery therapy cylinder 16, finned tube 17, phase change heat storage material 18, distribution type joint 19; Surgery therapy cylinder 19 is the stainless steel cylinders being surrounded by aeroge heat-insulation layer, and two is distribution type joint 19; Be inserted with some finned tubes 17 in stainless steel cylinder, finned tube 17 and stainless steel cylinder sealed with brazing, lead directly to two distribution type joint 19, phase change heat storage material 18 is housed between finned tube 17.
Described phase change heat storage material 18 is paraffin, and adds the vine tea powder that weight ratio is 15% ~ 20%.Vine tea has consciousness regaining effect, and the delicate fragrance of suitably hearing vine tea can alleviate discomfort, and the smell of vine tea fragrance can also make people's tranquilizing and allaying excitement.Be heated and produce the fragrant pleasant of vine tea, can help to alleviate discomfort, play the effect of tranquilizing and allaying excitement.
Operation principle of the present invention and the course of work are:
Winter heats: daytime in winter, opens solar thermal collector outlet valve (2), solar thermal collector inlet valve (3), close chamber's external condenser inlet valve (4), and regulate four-way makeshift valve (15) that ab port is connected, cd port is connected.Cold-producing medium absorbs heat of vaporization in solar thermal collector (1), the cold-producing medium of high temperature enters phase transition heat accumulation unit (5), heat exchange in phase transition heat accumulation unit (5), by phase transition heat accumulation unit (5) by refrigerant cools higher for temperature, absorbing and storing waste heat keeps refrigerant temperature constant, avoids causing adverse effect to compressor (6).Cold-producing medium is sucked by compressor (6) entrance, is compressed into high temperature and high pressure gas, and open air-cooled heat exchanger inlet valve (7), high temperature and high pressure gas enters Interior Space cold heat exchanger (8) through four-way makeshift valve (15), provides hot gas with indoor gas heat exchange.The moist steam of low-temp low-pressure is become through capillary restrictor (12) throttling through Interior Space cold heat exchanger (8) condensed liquid, then it is inner that the cold-producing medium after filter (13) filters is stored in fluid reservoir (14), last wet steam flow enters outdoor solar thermal collector (1) (evaporimeter), and evaporation endothermic completes circulation.
In evening in winter, open solar thermal collector outlet valve (2), solar thermal collector inlet valve (3), close chamber's external condenser inlet valve (4), regulate four-way makeshift valve (15) that ab port is connected, cd port is connected.The mainly heat absorption in phase transition heat accumulation unit (5) of cold-producing medium moist steam, the heat more than needed that daytime stores is used, successively through compressor (6), four-way makeshift valve (15), indoor heat exchanger (8), capillary restrictor (12), filter (13), fluid reservoir (14) after cold-producing medium, finally get back to phase transition heat accumulation unit (5).
Cooling in summer: opening chamber's external condenser inlet valve (4), close solar thermal collector outlet valve (2), solar thermal collector inlet valve (3), regulate four-way makeshift valve (15) that db port is connected, ca port is connected, and working media enters kind of refrigeration cycle.Indoor air-cooled heat exchanger (8) complete heat exchange vaporization produce low-pressure steam after air-cooled heat exchanger inlet valve (7), four-way makeshift valve (15), shortened into high temperature and high pressure gas by compressor (6) suction pressure, enter outdoor heat exchanger (9) and be cooled to liquid, Interior Space cold heat exchanger (8) heat absorption is finally entered through fluid reservoir (14), filter (13), capillary restrictor (12), indoor environment temperature is reduced, completes kind of refrigeration cycle.
Claims (3)
1. a solar heat pump refrigerating and heating systems, comprise direct expanding solar heating pump system, air source heat pump system, regenerative apparatus, specifically comprise outdoor condenser, fluid reservoir, filter, capillary restrictor, indoor air-cooled heat exchanger, compressor, four-way makeshift valve, solar thermal collector, phase transition heat accumulation unit, it is characterized in that, the outlet of described solar thermal collector is connected with the entrance of phase transition heat accumulation unit through solar energy heating outlet valve, the outlet of phase transition heat accumulation unit is connected with the entrance of compressor, the outlet of compressor is connected with the port a of four-way makeshift valve, the port b of four-way makeshift valve is connected with air-cooled heat exchanger through air-cooled heat exchanger inlet valve, the outlet of fluid reservoir respectively with condenser, solar thermal collector inlet valve connects, solar thermal collector inlet valve is connected with solar thermal collector, condenser is connected with the port c of four-way makeshift valve through outdoor condenser inlet valve, the entrance of compressor is connected with the port d of four-way makeshift valve.
2. a kind of solar heat pump refrigerating and heating systems according to claim 1, it is characterized in that, described phase transition heat accumulation unit comprises Surgery therapy cylinder, finned tube, phase change heat storage material, distribution type joint; Surgery therapy cylinder is the stainless steel cylinder being surrounded by aeroge heat-insulation layer, and two is distribution type joint; Be inserted with some finned tubes in stainless steel cylinder, finned tube and stainless steel cylinder sealed with brazing, lead directly to two distribution type joint, between finned tube, phase change heat storage material is housed.
3. a kind of solar heat pump refrigerating and heating systems according to claim 2, it is characterized in that, described phase change heat storage material is paraffin, and adds the vine tea powder that weight ratio is 15% ~ 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599386.8A CN104654656A (en) | 2013-11-25 | 2013-11-25 | Solar heat pump refrigeration and heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599386.8A CN104654656A (en) | 2013-11-25 | 2013-11-25 | Solar heat pump refrigeration and heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104654656A true CN104654656A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310599386.8A Pending CN104654656A (en) | 2013-11-25 | 2013-11-25 | Solar heat pump refrigeration and heating system |
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| CN (1) | CN104654656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157098A (en) * | 2015-10-20 | 2015-12-16 | 曹银生 | Solar heating device using phase-change material as heat-transfer medium |
| CN116642277A (en) * | 2023-07-27 | 2023-08-25 | 南京师范大学 | Energy storage defrosting device for heat recovery of gas boiler |
-
2013
- 2013-11-25 CN CN201310599386.8A patent/CN104654656A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157098A (en) * | 2015-10-20 | 2015-12-16 | 曹银生 | Solar heating device using phase-change material as heat-transfer medium |
| CN105157098B (en) * | 2015-10-20 | 2018-06-05 | 曹银生 | Utilize the solar heating device of phase-change material as a heat transfer medium |
| CN116642277A (en) * | 2023-07-27 | 2023-08-25 | 南京师范大学 | Energy storage defrosting device for heat recovery of gas boiler |
| CN116642277B (en) * | 2023-07-27 | 2023-09-15 | 南京师范大学 | Energy storage defrosting device for heat recovery of gas boiler |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |