CN109724250A - A kind of high/low temperature phase-change heat-storage power supply device and control method - Google Patents
A kind of high/low temperature phase-change heat-storage power supply device and control method Download PDFInfo
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- CN109724250A CN109724250A CN201910020998.4A CN201910020998A CN109724250A CN 109724250 A CN109724250 A CN 109724250A CN 201910020998 A CN201910020998 A CN 201910020998A CN 109724250 A CN109724250 A CN 109724250A
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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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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Abstract
The invention discloses a kind of high/low temperature phase-change heat-storage power supply device and control methods, compressor outlet is sequentially connected condenser, level-one throttle valve in the functional device, the outlet of first throttle valve is equipped with two pipelines, first pipeline outlet connect compressor air inlet, first pipeline is successively arranged two-step throttle valve and evaporator according to refrigerant flow direction, second pipeline outlet connects the evaporation coil import of solar thermal collector, and the evaporation coil of solar thermal collector exports connect compressor air inlet；The heat exchange outlet of solar thermal collector and the outlet of buffering heat storage tank are used to the import of connection energy supply end, the heat exchange import of solar thermal collector and the import of buffering heat storage tank are used to the outlet of connection energy supply end, second pipeline, the heat exchange outlet of solar thermal collector and the outlet of buffering heat storage tank are respectively mounted valve, in buffering heat storage tank, solar thermal collector and buffering heat storage tank fill material for storing heat of phase change in low temperature, high-temperature phase change heat accumulation material respectively for condenser setting.
Description
Technical field
The invention belongs to compound energies to energize field, be related to a kind of high/low temperature phase-change heat-storage power supply device and controlling party
Method.
Background technique
Here statement only provides background information related to the present invention, without necessarily constituting the prior art.
Air source heat pump technology is a kind of energy-saving and environmental protection heating technology set up based on inverse Carnot cycle principle, with
Refrigerant is medium, and low-temp low-pressure gaseous coolant is converted into high pressure-temperature gaseous state by compressor, and the gaseous coolant of high temperature and pressure exists
Heat exchange is carried out with water or air in condenser, the refrigerant of high pressure is cooled at normal temperature, is condensed into liquid.Refrigerant releases heat
Amount is used to heat water, and perhaps air obtains hot water or hot wind.Air source heat pump is to carry to be situated between using outdoor air as heat source side
The cold and hot source device of matter, therefore when outdoor environment temperature is low, evaporating temperature is low, compression ratio leads to greatly that heating capacity is small, Energy Efficiency Ratio
It is low, compressor exhaust temperature is excessively high, even occurs the problem of cannot starting sometimes, and be also easy to outdoor heat exchanger frosting, aggravate
Performance decline.It can solve the problems, such as that performance declines under its low temperature to a certain extent by introducing solar energy supplementary energy, but
The problem of it is unstable that there are systems, is affected by weather and night.
Summary of the invention
In order to solve the deficiencies in the prior art, the object of the present invention is to provide a kind of high/low temperature phase-change heat-storage power supply devices
And control method, realize hot wind supply, the hot water of annual efficient stable.
To achieve the goals above, the technical solution of the present invention is as follows:
First aspect provides a kind of high/low temperature phase-change heat-storage power supply device, by compressor, level-one throttle valve, second level section
Flow valve, evaporator, solar thermal collector, condenser, buffering heat storage tank composition；
The solar thermal collector is made of shell, evaporation coil, solar heat-collection plate, and the evaporation coil is arranged in too
It is positive can be on collecting plate, shell is divided into phase-transition heat-storage chamber and heat exchanging chamber by the solar heat-collection plate, in heat exchanging chamber with solar energy collection
The opposite shell of hot plate is transparent material, and heat exchanging chamber opens up heat exchange import and heat exchange outlet, and the intracavitary filling of phase-transition heat-storage is low
Warm phase change heat storage material；The condenser setting is equipped with high-temperature phase change heat accumulation in buffering heat storage tank in the buffering heat storage tank
Material；
Compressor outlet is sequentially connected condenser, level-one throttle valve, and the outlet of first throttle valve is equipped with two pipelines, the
One pipeline outlet connect compressor air inlet, the first pipeline are successively arranged two-step throttle valve and evaporation according to refrigerant flow direction
Device, the second pipeline outlet connect the evaporation coil import of solar thermal collector, and the evaporation coil of solar thermal collector exports connection
Compressor inlet；Solar thermal collector heat exchange outlet and buffering heat storage tank outlet be used to connection energize end into
Mouthful, the heat exchange import of solar thermal collector and the import of buffering heat storage tank are used to the outlet that connection energizes end, the second pipeline,
The heat exchange outlet of solar thermal collector and the outlet of buffering heat storage tank are respectively mounted valve.
Second aspect provides a kind of application of above-mentioned power supply device in heating field or drying field.
The third aspect provides a kind of energy supply method using above-mentioned power supply device, and solar thermal collector passes through solar energy collection
Hot plate converts solar energy into thermal energy, and a part of thermal energy is absorbed by low-temperature phase-change material to be stored, and another part is used for heating evaporation
The heat transferring medium in refrigerant or heat exchanging chamber in coil pipe；
When the temperature of the surroundings is low, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, and one
Part enters evaporator after two-step throttle valve carries out two-step throttle decompression and absorbs heat, and the refrigerant after heat absorption enters compression
Machine, another part enter compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser,
Refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being carried out using high-temperature phase change heat accumulation material
Energy storage, buffer heat storage tank in heat transferring medium be delivered to after refrigerant heat energy supply end energized；
When environment temperature is higher, refrigerant successively passes through level-one throttle valve, two-step throttle valve carries out two-stage reducing pressure by regulating flow,
Refrigerant after two-stage reducing pressure by regulating flow enters evaporator and absorbs heat, and the refrigerant after heat absorption enters compressor, by compressor pressure
Refrigerant after contracting enters condenser, and refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, simultaneously
Energy storage, the interior heat transferring medium and solar energy heating after refrigerant heat of buffering heat storage tank are carried out using high-temperature phase change heat accumulation material
The heat transferring medium being heated in device is delivered to energy supply end together and is energized.
Fourth aspect provides a kind of control method of above-mentioned power supply device, when environment temperature is higher, closes the second pipe
The valve of line opens the valve of the outlet of the valve and buffering heat storage tank of the heat exchange outlet of solar thermal collector, and refrigerant is successively
Carry out two-stage reducing pressure by regulating flow by level-one throttle valve, two-step throttle valve, the refrigerant after two-stage reducing pressure by regulating flow enter evaporator into
Row heat absorption, the refrigerant after heat absorption enter compressor, and the refrigerant after being compressed by the compressor enters condenser, and refrigerant is condensing
It exchanges heat in device with the heat transferring medium in buffering heat storage tank, while carrying out energy storage using high-temperature phase change heat accumulation material, buffering stores
Heat transferring medium in hot tank after refrigerant heat is delivered to energy supply together with the heat transferring medium being heated in solar thermal collector
End is energized；
When the temperature of the surroundings is low, the valve for closing the heat exchange outlet of solar thermal collector, opens the valve of the second pipeline
With the valve of the outlet of buffering heat storage tank, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, and one
Part enters evaporator after two-step throttle valve carries out two-step throttle decompression and absorbs heat, and the refrigerant after heat absorption enters compression
Machine, another part enter compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser,
Refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being carried out using high-temperature phase change heat accumulation material
Energy storage, buffer heat storage tank in heat transferring medium be delivered to after refrigerant heat energy supply end energized.
The invention has the benefit that
1. the present invention adds high-temperature phase change heat accumulation material in buffering heat storage tank, the heat accumulation of buffer tank can effectively improve
Ability reduces the temperature fluctuation of system heat supply；Simultaneously because increasing heat storage capacity, the buffering under same case can also be reduced
The volume of water tank, to reduce the heat loss and project cost of water tank.
2. refrigerant can be divided into two kinds of evaporating temperatures, in Jie of two kinds of temperature by the way of two-step throttle by the present invention
Draw heat in matter (surrounding air and solar thermal collector), and the stream of two paths can be controlled by the valve in pipeline
Amount improves the thermal stability under low temperature environment so that the various operating conditions of flexible adaptation, realize the effect of system air injection enthalpy-increasing.
3. there are three function, the auxiliary evaporator of heat pump system, solar thermal collectors for solar thermal collector tool of the invention
With low temperature phase change accumulation of heat, it is passed through in auxiliary evaporator after accumulation of heat can be can be carried out using the sun when solar energy is stronger.It can at night
The refrigerant evaporating temperature in auxiliary evaporator is improved using the heat of storage on daytime, improves heat pump system COP.
Detailed description of the invention
The Figure of description for constituting a part of this disclosure is used to provide further understanding of the disclosure, and the disclosure is shown
Meaning property embodiment and its explanation do not constitute the improper restriction to the disclosure for explaining the disclosure.
Fig. 1 is the structural schematic diagram of embodiment power supply device；
Fig. 2 is the structural schematic diagram for buffering heat storage tank；
Fig. 3 is the schematic cross-section of solar thermal collector；
Wherein, 1, compressor, 2, level-one throttle valve, 3, two-step throttle valve, 4, evaporator, 5, solar thermal collector, 6, water
Pump, 7, condenser, 8, finned tube, 9, buffering heat storage tank, 10, energy supply end, 11, evaporation coil, 12, transparent cover plate, 13, the sun
Energy collecting plate, 14, phase-transition heat-storage chamber, 15, insulating layer, 16, heat exchanging chamber, S1, the first valve, S2, the second valve, S3, third valve
Door.
Specific embodiment
It is noted that described further below be all exemplary, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Heat transferring medium described in the disclosure is air or water.
Valve described in the disclosure is the adjustable valve of aperture, such as cage ball valve, rotation ball-cock assembly, eccentric valve, butterfly
Valve etc..
For air source heat pump biggish deficiency affected by environment, the present disclosure proposes a kind of confessions of high/low temperature phase-change heat-storage
It can device and control method.
A kind of exemplary embodiment of the disclosure provides a kind of high/low temperature phase-change heat-storage power supply device, by compressor,
Level-one throttle valve, two-step throttle valve, evaporator, solar thermal collector, condenser, buffering heat storage tank composition；
The solar thermal collector is made of shell, evaporation coil, solar heat-collection plate, and the evaporation coil is arranged in too
It is positive can be on collecting plate, shell is divided into phase-transition heat-storage chamber and heat exchanging chamber by the solar heat-collection plate, in heat exchanging chamber, with solar energy collection
The opposite shell of hot plate is transparent material, and heat exchanging chamber opens up heat exchange import and heat exchange outlet, and the intracavitary filling of phase-transition heat-storage is low
Warm phase change heat storage material, such as paraffin class heat accumulating；The condenser setting is in buffering heat storage tank, the buffering heat storage tank
It is interior to be equipped with high-temperature phase change heat accumulation material, such as fatty acid, crystalline hydrate salt, wherein crystalline hydrate salt such as, Fe (NO3)2·6H2O、
Na2B4O7·10H2O、Na2PO4·12H2O、AlK(SO4)2·12H2O etc.；
Compressor outlet is sequentially connected condenser, level-one throttle valve, and the outlet of first throttle valve is equipped with two pipelines, the
One pipeline outlet connect compressor air inlet, the first pipeline are successively arranged two-step throttle valve and evaporation according to refrigerant flow direction
Device, the second pipeline outlet connect the evaporation coil import of solar thermal collector, and the evaporation coil of solar thermal collector exports connection
Compressor inlet；Solar thermal collector heat exchange outlet and buffering heat storage tank outlet be used to connection energize end into
Mouthful, the heat exchange import of solar thermal collector and the import of buffering heat storage tank are used to the outlet that connection energizes end, the second pipeline,
The heat exchange outlet of solar thermal collector and the outlet of buffering heat storage tank are respectively mounted valve.
In one or more embodiments of the embodiment, the shell of the solar thermal collector is equipped with insulating layer.It prevents
Ability is scattered and disappeared with the situation of heat radiation.
In one or more embodiments of the embodiment, several finned tubes, high-temperature-phase are equipped in the buffering heat storage tank
Change heat storage material is filled to finned tube.Increase high temperature phase change material (pcm) and buffer the heat-transfer surface area of heat transferring medium in heat storage tank,
Enhance high temperature phase change material (pcm) heat absorption rate of heat release.
In one or more embodiments of the embodiment, the evaporator is equipped with air-introduced machine.It can be by more environment
Air delivery provides more energy to evaporator for the refrigerant in evaporator.
In one or more embodiments of the embodiment, the heat exchange outlet of solar thermal collector is equipped with the pump housing or blower.
Power is provided for the heat transferring medium in solar thermal collector heat exchanging chamber.
The another embodiment of the disclosure provides a kind of application of above-mentioned power supply device in heating field.
Embodiment there is provided a kind of energy supply method using above-mentioned power supply device, solar energy collection for the third of the disclosure
Hot device converts solar energy into thermal energy by solar heat-collection plate, and a part of thermal energy is absorbed by low-temperature phase-change material to be stored, another
Part is for the heat transferring medium in the refrigerant or heat exchanging chamber in heating evaporation coil pipe；
When the temperature of the surroundings is low, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, and one
Part enters evaporator after two-step throttle valve carries out two-step throttle decompression and absorbs heat, and the refrigerant after heat absorption enters compression
Machine, another part enter compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser,
Refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being carried out using high-temperature phase change heat accumulation material
Energy storage, buffer heat storage tank in heat transferring medium be delivered to after refrigerant heat energy supply end energized；
When environment temperature is higher, refrigerant successively passes through level-one throttle valve, two-step throttle valve carries out two-stage reducing pressure by regulating flow,
Refrigerant after two-stage reducing pressure by regulating flow enters evaporator and absorbs heat, and the refrigerant after heat absorption enters compressor, by compressor pressure
Refrigerant after contracting enters condenser, and refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, simultaneously
Energy storage, the interior heat transferring medium and solar energy heating after refrigerant heat of buffering heat storage tank are carried out using high-temperature phase change heat accumulation material
The heat transferring medium being heated in device is delivered to energy supply end together and is energized.
In one or more embodiments of the embodiment, when there is no the sun to provide energy for solar thermal collector, phase
Become the energy of the material for storing heat of phase change in low temperature release savings in thermal.
The third of the disclosure embodiment there is provided a kind of control method of above-mentioned power supply device, when environment temperature compared with
Gao Shi closes the valve of the second pipeline, opens the outlet of the valve and buffering heat storage tank of the heat exchange outlet of solar thermal collector
Valve, refrigerant successively passes through level-one throttle valve, two-step throttle valve carries out two-stage reducing pressure by regulating flow, the refrigeration after two-stage reducing pressure by regulating flow
Agent enters evaporator and absorbs heat, and the refrigerant after heat absorption enters compressor, and the refrigerant after being compressed by the compressor enters condensation
Device, refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while utilizing high-temperature phase change heat accumulation material
Carry out energy storage, the heat transferring medium being heated in the interior heat transferring medium and solar thermal collector after refrigerant heat of buffering heat storage tank
Energy supply end is delivered to together to be energized；
When the temperature of the surroundings is low, the valve for closing the heat exchange outlet of solar thermal collector, opens the valve of the second pipeline
With the valve of the outlet of buffering heat storage tank, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, and one
Part enters evaporator after two-step throttle valve carries out two-step throttle decompression and absorbs heat, and the refrigerant after heat absorption enters compression
Machine, another part enter compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser,
Refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being carried out using high-temperature phase change heat accumulation material
Energy storage, buffer heat storage tank in heat transferring medium be delivered to after refrigerant heat energy supply end energized.
In one or more embodiments of the embodiment, the aperture of the valve by controlling the second pipeline, to control the
The flow-rate ratio of one pipeline inner refrigerant and the second pipeline inner refrigerant.The stream of two paths is controlled by the valve in pipeline
Amount ratio, the further various operating conditions of flexible adaptation, thus the thermal stability under further increasing low temperature environment.
In order to enable those skilled in the art can clearly understand the technical solution of the disclosure, below with reference to tool
The technical solution of the disclosure is described in detail in the embodiment of body.
A kind of high/low temperature phase-change heat-storage power supply device, as shown in Figure 1, by compressor 1, level-one throttle valve 2, two-step throttle
Valve 3, evaporator 4, solar thermal collector 5, water pump 6, condenser 7, buffering heat storage tank 9 form.
For buffering heat storage tank 9 as shown in Fig. 2, the setting of condenser 7 is in buffering heat storage tank 9, buffering heat storage tank 9 is interior equipped with several
Finned tube 8, filled high-temperature phase-change heat-storage material in finned tube 8.
Solar thermal collector 5, as shown in figure 3, being made of shell, evaporation coil 11, solar heat-collection plate 13, evaporation coil
11 are arranged on solar heat-collection plate 13, and shell is divided into phase-transition heat-storage chamber 14 and heat exchanging chamber 16, shell by solar heat-collection plate 13
Insulation layer 15 covers, and the shell opposite with solar heat-collection plate 13 is transparent cover plate 12 in heat exchanging chamber 16, and heat exchanging chamber 16 opens up
Exchange heat import and heat exchange outlet, fills material for storing heat of phase change in low temperature in phase-transition heat-storage chamber 14.
1 gas outlet of compressor is sequentially connected condenser 7, level-one throttle valve 2, and the outlet of first throttle valve 2 is equipped with two pipes
Line, 1 air inlet of the first pipeline outlet connect compressor, the first pipeline are successively arranged two-step throttle valve according to refrigerant flow direction
3 and evaporator 4, the second pipeline outlet connects 11 import of evaporation coil of solar thermal collector 5, the evaporation of solar thermal collector 5
Coil pipe 11 exports 1 air inlet of connect compressor；The heat exchange outlet of solar thermal collector 5 and the outlet of buffering heat storage tank 9 are all connected with
The import of 10 ends is energized, the heat exchange import of solar thermal collector 5 and the import of buffering heat storage tank 9 are all connected with energy supply end 10
First valve S1, second are installed the heat exchange outlet of outlet, the outlet, the second pipeline and solar thermal collector that buffer heat storage tank respectively
Valve S2, third valve S3.
Summer process: closing the second valve S2, the first valve S1, third valve S3 is opened, at this point, composite evaporation device is not joined
It works with system, which belongs to conventional solar energy composite heat pump system, and solar thermal collector 5 and conventional heat pump system are produced
Raw heat introduces energy supply end 10, and solar thermal collector heat is transported to energy supply end 10 by water pump 6, as needed for mentioning
Supplying hot water.
Daytime in winter process: close third valve S3, open the first valve S1, the second valve S2.It is good in irradiation on daytime
Under conditions of, the hot water that the refrigerant for the high-temperature gas being discharged through compressor 1 enters in condenser 7 with buffering heat storage tank 9 exchanges heat,
Hot water is transferred heat to, heat is stored in the high-temperature phase change heat accumulation material in finned tube 8, and refrigerant enters level-one section later
After flowing the progress reducing pressure by regulating flow of valve 2, two-way is divided to carry out later, enters evaporation after two-step throttle valve 3 carries out second throttle all the way
Device 4 absorbs the heat in environment；Another way enters solar thermal collector 5 by the second valve S2 and absorbs the production of solar heat-collection plate 13
Raw heat；Last two-way gas mixes at compressor 1 and carries out gas compression, realizes the air injection enthalpy-increasing effect of system.When
Solar radiation can suitably reduce the aperture of the second valve S2 when lower, so that refrigeration system is absorbed the heat in environment more, work as weather
Sunny radiation condition can increase the aperture of the second valve S2 when preferable, refrigeration system is made to absorb the heat of solar thermal collector 5 more.
Night in winter process: closing third valve S3, opens the first valve S1, the second valve S2.It is good in irradiation on daytime
Under conditions of, the hot water that the refrigerant for the high-temperature gas being discharged through compressor 1 enters in condenser 7 with buffering heat storage tank 9 exchanges heat,
Hot water is transferred heat to, after refrigerant enters the progress reducing pressure by regulating flow of level-one throttle valve 2 later, divides two-way to carry out later, all the way
Enter the heat in the absorption environment of evaporator 4 after two-step throttle valve 3 carries out second throttle；Another way passes through the second valve S2
It is absorbed into solar thermal collector 5 and is stored in the heat in material for storing heat of phase change in low temperature on 13 daytime of solar heat-collection plate；Last two
Road gas mixes at compressor 1 and carries out gas compression, realizes the air injection enthalpy-increasing effect of system.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of high/low temperature phase-change heat-storage power supply device, characterized in that by compressor, level-one throttle valve, two-step throttle valve, steam
Send out device, solar thermal collector, condenser, buffering heat storage tank composition；
The solar thermal collector is made of shell, evaporation coil, solar heat-collection plate, and the evaporation coil is arranged in solar energy
On collecting plate, shell is divided into phase-transition heat-storage chamber and heat exchanging chamber by the solar heat-collection plate, in heat exchanging chamber, with solar heat-collection plate
Opposite shell is transparent material, and heat exchanging chamber opens up heat exchange import and heat exchange outlet, the intracavitary filling low-temperature phase of phase-transition heat-storage
Change heat storage material；The condenser setting is equipped with high-temperature phase change heat accumulation material in buffering heat storage tank in the buffering heat storage tank；
Compressor outlet is sequentially connected condenser, level-one throttle valve, and the outlet of first throttle valve is equipped with two pipelines, the first pipe
Line exports connect compressor air inlet, and the first pipeline is successively arranged two-step throttle valve and evaporator according to refrigerant flow direction,
Second pipeline outlet connects the evaporation coil import of solar thermal collector, the evaporation coil outlet connection compression of solar thermal collector
Machine air inlet；The heat exchange outlet of solar thermal collector and the outlet of buffering heat storage tank are used to the import of connection energy supply end, too
The heat exchange import of positive energy heat collector and the import of buffering heat storage tank are used to the outlet of connection energy supply end, the second pipeline, the sun
The heat exchange outlet of energy heat collector and the outlet of buffering heat storage tank are respectively mounted valve.
2. power supply device as described in claim 1, characterized in that the shell of the solar thermal collector is equipped with insulating layer.
3. power supply device as described in claim 1, characterized in that be equipped with several finned tubes, high temperature in the buffering heat storage tank
Phase-change heat-storage material is filled to finned tube.
4. power supply device as described in claim 1, characterized in that the evaporator is equipped with air-introduced machine.
5. power supply device as described in claim 1, characterized in that the heat exchange outlet of solar thermal collector is equipped with the pump housing or wind
Machine.
6. a kind of application of any power supply device of Claims 1 to 5 in heating field.
7. a kind of energy supply method using any power supply device of Claims 1 to 55, characterized in that solar thermal collector
Thermal energy is converted solar energy by solar heat-collection plate, a part of thermal energy is absorbed by low-temperature phase-change material to be stored, another part
For the heat transferring medium in the refrigerant or heat exchanging chamber in heating evaporation coil pipe；
When the temperature of the surroundings is low, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, a part
Entering evaporator after two-step throttle valve carries out two-step throttle decompression to absorb heat, the refrigerant after heat absorption enters compressor,
Another part enters compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser, makes
Cryogen exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being stored up using high-temperature phase change heat accumulation material
Can, the heat transferring medium in buffering heat storage tank is delivered to energy supply end and is energized after refrigerant heat；
When environment temperature is higher, refrigerant successively passes through level-one throttle valve, two-step throttle valve carries out two-stage reducing pressure by regulating flow, two-stage
Refrigerant after reducing pressure by regulating flow enters evaporator and absorbs heat, and the refrigerant after heat absorption enters compressor, after being compressed by the compressor
Refrigerant enter condenser, refrigerant exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, utilizes simultaneously
High-temperature phase change heat accumulation material carries out energy storage, buffers in the heat transferring medium and solar thermal collector in heat storage tank after refrigerant heat
The heat transferring medium being heated is delivered to energy supply end together and is energized.
8. energy supply method as claimed in claim 7, characterized in that when there is no the sun to provide energy for solar thermal collector,
The energy of the intracavitary material for storing heat of phase change in low temperature release savings of phase-transition heat-storage.
9. a kind of control method of any power supply device of Claims 1 to 5, characterized in that when environment temperature is higher,
The valve for closing the second pipeline opens the valve of the outlet of the valve and buffering heat storage tank of the heat exchange outlet of solar thermal collector,
Refrigerant successively passes through level-one throttle valve, two-step throttle valve carries out two-stage reducing pressure by regulating flow, the refrigerant after two-stage reducing pressure by regulating flow into
Enter evaporator to absorb heat, the refrigerant after heat absorption enters compressor, and the refrigerant after being compressed by the compressor enters condenser, system
Cryogen exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being stored up using high-temperature phase change heat accumulation material
Can, the heat transferring medium in buffering heat storage tank after refrigerant heat is defeated together with the heat transferring medium being heated in solar thermal collector
It send to energy supply end and is energized；
When the temperature of the surroundings is low, the valve of the heat exchange outlet of solar thermal collector is closed, the valve for opening the second pipeline is gentle
The valve of the outlet of heat storage tank is rushed, refrigerant is divided into two parts after level-one throttle valve carries out level-one reducing pressure by regulating flow, a part
Entering evaporator after two-step throttle valve carries out two-step throttle decompression to absorb heat, the refrigerant after heat absorption enters compressor,
Another part enters compressor after entering solar thermal collector heat absorption, and the refrigerant after being compressed by the compressor enters condenser, makes
Cryogen exchanges heat with the heat transferring medium in buffering heat storage tank within the condenser, while being stored up using high-temperature phase change heat accumulation material
Can, the heat transferring medium in buffering heat storage tank is delivered to energy supply end and is energized after refrigerant heat.
10. control method as claimed in claim 9, characterized in that by controlling the aperture of the valve of the second pipeline, with control
The flow-rate ratio of first pipeline inner refrigerant and the second pipeline inner refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020998.4A CN109724250A (en) | 2019-01-09 | 2019-01-09 | A kind of high/low temperature phase-change heat-storage power supply device and control method |
Applications Claiming Priority (1)
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Application publication date: 20190507 |