CN107062693A - A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer - Google Patents
A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer Download PDFInfo
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- CN107062693A CN107062693A CN201710351577.0A CN201710351577A CN107062693A CN 107062693 A CN107062693 A CN 107062693A CN 201710351577 A CN201710351577 A CN 201710351577A CN 107062693 A CN107062693 A CN 107062693A
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- heat
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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
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
-
- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/24—Storage receiver heat
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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)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer, including expansion valve, compressor, condenser, solar energy heating evaporator, heat pipe and accumulator；The solar energy heating evaporator includes evaporator and solar radiation plate；The solar radiation plate constitutes body structure, and the evaporator is located inside body structure, the box house liquid filling body medium, for the thermal energy storage that absorbs solar radiation plate in liquid medium；The evaporator is connected with compressor, condenser and expansion valve formation closed loop successively by pipeline；In heat pipe one end insertion body structure, in other end insertion accumulator；The heat pipe is closing metal tube, inside filling phase-change material.The present invention can cause the evaporating temperature of heat pump to improve, and reaching improves frosting problem when winter air source heat pump is heated, and reaches the accumulation of energy of raising phase-change material, the heat transfer efficiency of exergonic process.
Description
Technical field
It is more particularly to a kind of to be based on phase-transition heat-storage and adopting heat pipes for heat transfer the present invention relates to field of air conditioning and application of solar energy field
Solar energy heat pump system.
Background technology
At present, the exhausted problem of global energy and environmental pollution are increasingly serious.The energy turns into the lifeblood of economic development, the world
It is upper which country the stable of national strength to be maintained to rise in the not enough situation of energy supply without.China is the biggest in the world
Developing country, while being also second-biggest-in-the-world energy-consuming state, Chinese per capita energy consumption is also constantly rising,
Nineteen fifty-three, Chinese per capita energy consumption is 0.09t standard coals, and Chinese per capita energy consumption is 1.71t standard coals within 2005,
By 2016, this numeral reached 3.16t.In the industrialization and urbanization process constantly promoted, energy problem more and more in
The bottleneck of state's economic growth and social progress, therefore, saves energy problem and is just particularly important
When known air source heat pump works in the winter time, evaporating temperature is relatively low, and air source heat pump heating efficiency is relatively low, to reach
To equal indoor design temperature, the operation longer time is necessarily required to, more multi-energy is consumed.Meanwhile, air-source heat common at present
The problem of all frosting being produced when pump is run in the winter time, air-conditioning is often run can all have a defrosting process for a period of time, and at this
During individual, outdoor evaporator switchs to condenser and used, and indoor set then switchs to evaporator and used, and therefore indoor temperature can have one
A little reductions.
Solar energy accumulation heat pump techniques are the models using regenerative resource, are the key subjects studied both at home and abroad.The sun
Energy energy-storage heat pump system is divided by heat storage type mainly two kinds of forms, and one kind is sensible heat accumulation of heat, and one kind is phase-transition heat-storage.It is domestic
The outer research to sensible heat accumulation of heat is relatively more, and Technical comparing is ripe, and phase-transition heat-storage compares less, the storage on raising phase-change material
The research of exergic efficiency is less.Phase-transition heat-storage possesses stronger heat storage capacity relative to sensible heat accumulation of heat.
Existing technology is studied the existing comparative maturity of solar energy accumulation heat pump techniques, for example：
Three casing pipes energy accumulating solar and air resource heat pump integrated system.So that air source heat pump technology, solar heat pump
Technology and phase-changing energy-storing technology are organically combined by three casing pipes energy accumulating heat exchanger, constitute an organic integrated system.
The problem of system is present：Structure is more complicated, is difficult to realize in technique, cost is higher, for the accumulation of energy process of phase-change material,
Exergonic process efficiency is relatively low, easy generation frosting when winter air source heat pump is heated.
Stable supplying thermal condition is realized using phase-change material in solar energy heat pump system, systematic function is improved.The system
The problem of existing：The incompatibility between phase-change material, medium is directly added, the corrosivity of phase-change material causes in original system
There is technical difficulty in middle addition phase-change material；
Paraffin is used for the integral solar energy heat pump water heater of medium.Energy-accumulation material is used for a kind of new collection of paraffin
Heat/accumulation of energy/evaporation integral solar energy heat pump water heater.A kind of new type solar energy accumulation of energy/evaporation/heat collector, the integrated sun
Can heat pump hot-water system.These three systems have larger similitude, and the problem of existing is that accumulation of energy, exergic efficiency be not high, system
The size of storage heat limited by evaporator size.
The content of the invention
For Shortcomings in the prior art, the invention provides a kind of solar energy based on phase-transition heat-storage and adopting heat pipes for heat transfer
Heat pump, can prevent temperature, improve COP solar energy heat pump systems.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer, including expansion valve, compressor, condenser,
Solar energy heating evaporator, heat pipe and accumulator；The solar energy heating evaporator includes evaporator and solar radiation plate；Institute
State solar radiation plate and constitute body structure, the evaporator is located inside body structure, and the box house liquid filling body is situated between
Matter, for the thermal energy storage that absorbs solar radiation plate in liquid medium；The evaporator by pipeline successively with compression
Machine, condenser and expansion valve formation closed loop connection；In heat pipe one end insertion body structure, in other end insertion accumulator,
For by heat pipe, heat energy to be transmitted between accumulator and liquid medium；The heat pipe is closing metal tube, inside filling phase transformation
Material.
Further, the heat pipe two ends in body structure and are respectively equipped with fin in accumulator.
Further, the sheathing material of the accumulator is plastics, and the accumulator is provided with heat-insulation layer, the heat-insulation layer and filled out
Fill rock wool；Filling energy storage materials of phase change CaCl in the accumulator2·6H2O。
Further, the condenser is preferably air cooled condenser.
Further, the compressor is preferably non-condensing compressor.
Further, the expansion valve is preferably internal balance type expansion valve.
Further, the heat pipe is preferably copper pipe, the preferential methanol of inside filling.
The beneficial effects of the present invention are：
1. the solar energy heat pump system of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer, by using phase-change material
Accumulation of energy so that the evaporating temperature of heat pump is improved, reaching improves frosting problem when winter air source heat pump is heated.
2. the solar energy heat pump system of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer, by using heat pipe conduct
Heat-transfer matcrial, reaches the accumulation of energy of raising phase-change material, the heat transfer efficiency of exergonic process.
3. the solar energy heat pump system of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer, by using heat pipe and phase
Become energy storage equipment, the two-way heat transfer property of heat pipe that material is combined, making full use of for heat is reached, so as to lift the system of heat pump
Hot cop.
4. the solar energy heat pump system of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer, is held by changing energy storage tank
Size is measured, the amount of stored heat of regulating system is reached.
5. the solar energy heat pump system of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer, by the arrangement of position,
Reach the storage and utilization of solar heat.
Brief description of the drawings
Fig. 1 is the solar energy heat pump system schematic diagram of the present invention based on phase-transition heat-storage and adopting heat pipes for heat transfer.
Fig. 2 is the fundamental diagram of heat pipe of the present invention.
In figure：
1- compressors；2- condensers；3- expansion valves；4- accumulators；5- heat pipes；6- solar energy heating evaporators；7- fins；
8- evaporators.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
As shown in figure 1, a kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer, including expansion valve 3, compression
Machine 1, condenser 2, solar energy heating evaporator 6, heat pipe 5 and accumulator 4；The solar energy heating evaporator 6 includes evaporator 8
With solar radiation plate；The solar radiation plate constitutes body structure, and the evaporator is located inside body structure, the case
Internal portion's liquid filling body medium, for the thermal energy storage that absorbs solar radiation plate in liquid medium；The evaporator 8 leads to
Piping is connected with compressor 1, condenser 2 and expansion valve 3 formation closed loop successively；In the one end of heat pipe 5 insertion body structure,
In other end insertion accumulator 4, for by heat pipe 5, heat energy to be transmitted between accumulator 4 and liquid medium；The heat pipe 5 is
Close metal tube, inside filling phase-change material.The condenser 2 is preferably air cooled condenser.The compressor 1 is preferably height
Back pressure type compressor.The expansion valve 3 is preferably internal balance type expansion valve.
The sheathing material of the accumulator is plastics, and the accumulator is provided with filling rock wool in heat-insulation layer, the heat-insulation layer；
Filling energy storage materials of phase change CaCl in the accumulator2·6H2O。
The course of work：The thermal energy storage that solar radiation plate absorbs is in liquid medium, and evaporator 8 absorbs liquid medium
Heat, Low Temperature Steam is become by the medium state of pipeline by Low Temperature Liquid vapour mixture.Compressor 1 does work to the medium of pipeline, pipe
The medium state in road becomes high-temperature steam by Low Temperature Steam.Outwardly release heat by condenser 2, the medium state of pipeline by
High-temperature steam becomes high-temp liquid.The medium of pipeline is after choke valve throttles, and state high-temp liquid becomes the mixing of Low Temperature Liquid vapour
Thing, completes a circulation.
Shown in Fig. 2, the system is in the case of different intensities of solar radiation, by using heat pipe as heat-transfer matcrial, can
Realize that three functions reach the accumulation of energy of raising phase-change material, the heat transfer efficiency of exergonic process.It is specific as follows：
Heat supply, accumulation of heat pattern：When intensity of solar radiation is stronger, solar radiation plate absorbs solar energy, the absorbing liquid of evaporator 8
The heat of body medium, when the temperature of evaporator 8 is risen to more than or equal to Tsd, wherein TsdFor the temperature of setting, by liquid medium characteristic
Determine, the heat in liquid medium is passed in energy storage tank 4 by heat pipe 5, and the medium in energy storage tank is with solid-liquid phase change latent heat shape
Formula accumulates solar energy, the temperature near heat pump evaporator can be caused to be increased relative to environment temperature, so as to improve
Heat pump heating effect.
Part heat release, heat supply mode：When intensity of solar radiation is not enough, the heat of liquid medium declines, and causes evaporator 8
Decline, the heat energy that now medium in energy storage tank 4 discharges accumulation by heat pipe 5 is used as supplement.
Heat release, heat supply mode：When night does not have solar energy to utilize, the sun of the medium release accumulation in energy storage tank 4
Can, it is used as the low-temperature heat source of heat pump.
The two ends of heat pipe 5 in body structure and are respectively equipped with fin 7 in accumulator 4.Heat pipe can so be increased
Heat exchange area, improves the effect in heat exchange.The heat pipe 5 is copper pipe, inside filling methanol.
The system according to heat demand, can determine the area size of solar radiation plate, further determine that phase-change material
Amount so that the operating ambient temperature of the evaporator of heat pump maintains higher temperature, improves winter heat pump and heats
Frosting problem, used heat pipe as heat-transfer matcrial, improved phase-change material accumulation of energy, the heat transfer efficiency of exergonic process and cause evaporation
Nearby temperature is higher for device, so as to lift heat pump heating effect, improves heat pump COP, realizes energy-conservation.
For the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment to the embodiment, not
In the case of the substantive content of the present invention, any conspicuously improved, replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (7)
1. a kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that including expansion valve (3), pressure
Contracting machine (1), condenser (2), solar energy heating evaporator (6), accumulator (4) and heat pipe (5)；The solar energy heating evaporator
(6) evaporator (8) and solar radiation plate are included；The solar radiation plate constitutes body structure, and the evaporator is located at case
Body inside configuration, the box house liquid filling body medium, the thermal energy storage for solar radiation plate to be absorbed is situated between in liquid
In matter；The evaporator (8) is connected with compressor (1), condenser (2) and expansion valve (3) formation closed loop successively by pipeline；Institute
State in heat pipe (5) one end insertion body structure, in other end insertion accumulator (4), for by heat pipe (5) in accumulator (4)
Heat energy is transmitted between liquid medium；The heat pipe (5) is closing metal tube, inside filling phase-change material.
2. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
State heat pipe (5) two ends and be respectively equipped with fin (7) in body structure and in accumulator (4).
3. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
The sheathing material for stating accumulator (4) is plastics, and the accumulator (4) is provided with filling rock wool in heat-insulation layer, the heat-insulation layer；It is described
Filling energy storage materials of phase change CaCl in accumulator (4)2·6H2O。
4. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
It is preferably air cooled condenser to state condenser (2).
5. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
It is preferably non-condensing compressor to state compressor (1).
6. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
It is preferably internal balance type expansion valve to state expansion valve (3).
7. the solar energy heat pump system according to claim 1 based on phase-transition heat-storage and adopting heat pipes for heat transfer, it is characterised in that institute
It is copper pipe, the preferential methanol of inside filling to state heat pipe (5) excellent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710351577.0A CN107062693A (en) | 2017-05-18 | 2017-05-18 | A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710351577.0A CN107062693A (en) | 2017-05-18 | 2017-05-18 | A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer |
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| CN107062693A true CN107062693A (en) | 2017-08-18 |
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| CN201710351577.0A Pending CN107062693A (en) | 2017-05-18 | 2017-05-18 | A kind of solar energy heat pump system based on phase-transition heat-storage and adopting heat pipes for heat transfer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702188A (en) * | 2017-10-23 | 2018-02-16 | 南昌大学 | A kind of heat-pipe apparatus for having heat storage capacity |
| CN107940647A (en) * | 2017-12-22 | 2018-04-20 | 山东飞龙制冷设备有限公司 | A kind of direct-expansion-type heating system and air-conditioning for air-conditioning |
| CN108036432A (en) * | 2017-11-29 | 2018-05-15 | 珠海格力电器股份有限公司 | Solar heat storage air conditioner outdoor unit and air conditioner |
| CN108180652A (en) * | 2017-12-28 | 2018-06-19 | 河南百年融熥实业有限公司 | A kind of solar energy multimedium heat-collection and heat-accumulation device |
| CN108204682A (en) * | 2017-12-28 | 2018-06-26 | 河南百年融熥实业有限公司 | A kind of solar air water heat collector |
| CN110186217A (en) * | 2019-06-28 | 2019-08-30 | 唐山市同智科技有限公司 | Photovoltaic power generation is cold and hot can recycle device and method |
| CN110645626A (en) * | 2019-11-06 | 2020-01-03 | 航天建筑设计研究院有限公司 | Air source heat pump heating system and method based on solar hot air phase-change energy storage |
| CN111197831A (en) * | 2020-02-21 | 2020-05-26 | 桂林沣泱科技有限公司 | Energy storage and release device, energy storage and release equipment and air conditioning system |
| CN112710023A (en) * | 2020-12-07 | 2021-04-27 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
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| CN101915464A (en) * | 2010-08-30 | 2010-12-15 | 江苏省华扬太阳能有限公司 | Phase change thermal storage solar water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702188A (en) * | 2017-10-23 | 2018-02-16 | 南昌大学 | A kind of heat-pipe apparatus for having heat storage capacity |
| CN108036432A (en) * | 2017-11-29 | 2018-05-15 | 珠海格力电器股份有限公司 | Solar heat storage air conditioner outdoor unit and air conditioner |
| CN108036432B (en) * | 2017-11-29 | 2024-01-30 | 珠海格力电器股份有限公司 | Solar heat storage air conditioner outdoor unit and air conditioner |
| CN107940647A (en) * | 2017-12-22 | 2018-04-20 | 山东飞龙制冷设备有限公司 | A kind of direct-expansion-type heating system and air-conditioning for air-conditioning |
| CN108180652A (en) * | 2017-12-28 | 2018-06-19 | 河南百年融熥实业有限公司 | A kind of solar energy multimedium heat-collection and heat-accumulation device |
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| CN110186217A (en) * | 2019-06-28 | 2019-08-30 | 唐山市同智科技有限公司 | Photovoltaic power generation is cold and hot can recycle device and method |
| CN110645626A (en) * | 2019-11-06 | 2020-01-03 | 航天建筑设计研究院有限公司 | Air source heat pump heating system and method based on solar hot air phase-change energy storage |
| CN110645626B (en) * | 2019-11-06 | 2024-01-23 | 航天建筑设计研究院有限公司 | Air source heat pump heating system and method based on solar hot air phase change energy storage |
| CN111197831A (en) * | 2020-02-21 | 2020-05-26 | 桂林沣泱科技有限公司 | Energy storage and release device, energy storage and release equipment and air conditioning system |
| CN112710023A (en) * | 2020-12-07 | 2021-04-27 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
| CN112710023B (en) * | 2020-12-07 | 2022-06-10 | 广东申菱环境系统股份有限公司 | Zero-energy-consumption uninterrupted operation solar heating system |
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