CN111750720A - Single-tank heat storage device with phase change heat storage function and use method - Google Patents
Single-tank heat storage device with phase change heat storage function and use method Download PDFInfo
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- CN111750720A CN111750720A CN202010471214.2A CN202010471214A CN111750720A CN 111750720 A CN111750720 A CN 111750720A CN 202010471214 A CN202010471214 A CN 202010471214A CN 111750720 A CN111750720 A CN 111750720A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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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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Abstract
The invention discloses a single-tank heat storage device with phase change heat storage and a using method thereof, and relates to the technical field of heat storage energy utilization. According to the single-tank heat storage device with the phase change heat storage function and the using method, the heat storage medium in the heat storage single-tank body is heated by utilizing low-price valley electric energy at night, so that heat storage is realized, the heat release stable time of the heat storage device is prolonged by the phase change heat storage unit on the top in the tank, meanwhile, the heat release quantity of the phase change heat storage medium in a phase change range is large, the duration is long, the temperature change is small, and the heat release process is more stable.
Description
Technical Field
The invention relates to the technical field of heat storage energy utilization, in particular to a single-tank heat storage device with phase change heat storage and a using method.
Background
With the continuous deterioration of global environment, the reasonable and efficient utilization of energy is mentioned to an unprecedented level. In order to reduce the emission of pollution gas, China not only reduces the coal-fired heating in winter, but also draws wide attention on the effective utilization of off-peak electricity and industrial waste heat at night. The single-tank heat storage device can convert cheap electric energy or industrial waste heat at night into high-temperature heat energy to be stored, and the stored heat energy can be directly utilized and used for heating buildings and can also be converted into electric energy to be used in the peak period of electricity utilization.
At present, the mature solar high-temperature heat utilization and storage method is double-tank sensible heat storage, the heat storage device is huge, the system investment and maintenance cost is high, and in order to reduce the heat storage cost, Chinese patent ZL201420138089.3 discloses a single-tank electric energy storage device, electric energy is stored in a single tank in a sensible heat mode, and then the heat energy is released by an immersed heat exchanger, so that the cost is saved and the space is saved compared with a double-tank heat storage system. This patent utilizes sensible heat accumulation, increases adiabatic baffle and has reached better energy storage, energy release effect, but the stability of single jar heat release outlet temperature is poor, waste heat can not effectively be utilized, and heat energy utilization efficiency is lower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a single-tank heat storage device with phase change heat storage and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a single-tank heat storage device with phase change heat storage comprises a heat storage single tank body, a first phase change heat storage unit, a second phase change heat storage unit, a third phase change heat storage unit, a heat release coil heat exchanger, a heat storage coil heat exchanger and a heat collector;
the heat storage single tank body is fixedly placed by a tank body placing seat, the tank body placing seat is fixedly installed at the bottom end outside the heat storage single tank body, and a tank body control valve used for adjusting the internal temperature environment is further arranged at the top end of the heat storage single tank body;
the heat collector is a heating device, the heat collector can be a solar heat collector, and the heat collector is arranged near the outer part of the heat storage single tank body;
the heat storage coil heat exchanger is heat transfer equipment and is arranged at the bottom end inside the heat storage single tank body;
the first phase change heat storage unit, the second phase change heat storage unit and the third phase change heat storage unit are phase change heat storage devices, and three phase change heat storage units in the phase change heat storage devices are arranged at the top end of the interior of the heat storage single tank body from top to bottom;
the heat-releasing coil heat exchanger is arranged in the heat storage single tank body from bottom to top and is communicated with the energy utilization device through an inlet and an outlet of a medium; the heat-releasing coil heat exchanger comprises a plurality of heat-releasing coil heat exchange tubes which are arranged at left and right positions, and the plurality of heat-releasing coil heat exchange tubes simultaneously perform heat-releasing and heat-exchanging work.
Further optimizing the technical scheme, the heat transfer medium outlet of the heat storage coil heat exchanger and the heat transfer medium inlet of the heat storage coil heat exchanger are respectively connected with the heat collector medium inlet of the heat collector and the heat collector medium outlet of the heat collector.
Further optimize this technical scheme, the heat storage coil heat exchanger is single helical structure or double helix structure, the heat storage coil heat exchanger sets up in the inside of the single jar of body of heat accumulation perpendicularly.
Further optimizing the technical scheme, a second heat release medium inlet of the energy utilization device and a second heat release medium outlet of the energy utilization device are respectively connected with a first heat release medium outlet of the heat release coil heat exchanger and a first heat release medium inlet of the heat release coil heat exchanger.
Further optimize this technical scheme, heat-releasing coil heat exchanger is by a heat exchanger installation frame fixed mounting in the inside of the single jar of body of heat accumulation, heat-releasing coil heat exchanger passes through the heat exchanger installation frame and makes and can be certain angle and place in the inside of the single jar of body of heat accumulation, and it can be for 0 to 30 to place the angle for heat-releasing coil heat exchanger's the heat exchange effect that releases heat is even.
The technical scheme is further optimized, phase change heat storage media with certain melting points are filled in each phase change heat storage unit, and the melting points of the phase change heat storage media in the first phase change heat storage unit, the second phase change heat storage unit and the third phase change heat storage unit are continuously improved.
Further optimizing the technical scheme, the energy utilization device can be one of thermoelectric energy conversion equipment, an industrial heating device or an industrial hot water supply device.
The use method of the single-tank heat storage device with the phase change heat storage function comprises a heat storage process and a heat release process;
in the heat storage process, after the heat of the heat collector is absorbed by the heat storage medium in the heat storage single tank body, the temperature of the heat storage medium rises, the phase change heat storage units are sequentially melted from top to bottom due to the fact that the melting points of the phase change heat storage units from top to bottom, the phase change latent heat is stored, the heat provided by the heat collector is absorbed by the heat storage coil heat exchanger until the temperature of the heat storage medium in the whole heat storage unit rises.
In the heat release process, the heat release medium enters the heat release coil pipe heat exchanger, the heat in the heat storage single tank body is taken out and enters the energy utilization device to release heat, in the process, the heat storage temperature of a plurality of phase change heat storage units is reduced from bottom to top in sequence, and when all the phase change heat storage units are in a phase change state, the whole heat release process is finished.
Compared with the prior art, the invention provides a single-tank heat storage device with phase change heat storage and a use method thereof, and the single-tank heat storage device has the following beneficial effects:
according to the single-tank heat storage device with the phase change heat storage function and the using method, the heat storage medium in the heat storage single-tank body is heated by utilizing low-price valley electric energy at night, so that heat storage is realized, the heat release stable time of the heat storage device is prolonged by the phase change heat storage unit on the top in the tank, meanwhile, the heat release quantity of the phase change heat storage medium in a phase change range is large, the duration is long, the temperature change is small, and the heat release process is more stable.
Drawings
FIG. 1 is a schematic structural diagram of a single-tank heat storage device with phase change heat storage according to the present invention;
fig. 2 is a schematic structural diagram of a heat collector of a single-tank heat storage device with phase change heat storage according to the present invention.
In the figure: 1. a heat storage single tank body; 2. a tank control valve; 3. a tank body placing seat; 4. a thermal storage coil heat exchanger; 5. a heat transfer medium inlet; 6. a heat transfer medium outlet; 7. a heat collector; 8. a collector medium inlet; 9. a collector medium outlet; 10. a heat exchanger mounting frame; 11. a heat-releasing coil heat exchanger; 12. a first phase change heat storage unit; 13. a second phase change thermal storage unit; 14. a third phase-to-heat storage unit; 15. a first exothermic medium inlet; 16. a first exothermic medium outlet; 17. a second exothermic medium inlet; 18. a second exothermic medium outlet; 19. an energy utilization device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, a single-tank heat storage device with phase change heat storage includes a heat storage single tank 1, a first phase change heat storage unit 12, a second phase change heat storage unit 13, a third phase change heat storage unit 14, a heat releasing coil heat exchanger 11, a heat storage coil heat exchanger 4, and a heat collector 7;
specifically, the heat storage single tank body 1 is fixedly placed by a tank body placing seat 3, the tank body placing seat 3 is fixedly installed at the bottom end of the outer portion of the heat storage single tank body 1, and a tank body control valve 2 for adjusting the internal temperature environment is further arranged at the top end of the heat storage single tank body 1;
specifically, the heat collector 7 is a heating device, the heat collector 7 can be a solar heat collector, and the heat collector 7 is arranged near the outside of the heat storage single tank body 1;
specifically, the heat storage coil heat exchanger 4 is heat transfer equipment, and the heat storage coil heat exchanger 4 is arranged at the bottom end inside the heat storage single tank body 1;
specifically, the first phase change heat storage unit 12, the second phase change heat storage unit 13 and the third phase change heat storage unit 14 are phase change heat storage devices, and three phase change heat storage units in the phase change heat storage devices are arranged at the top end of the interior of the heat storage single tank body 1 from top to bottom;
specifically, the heat-releasing coil heat exchanger 11 is arranged in the heat storage single tank body 1 from bottom to top, and the heat-releasing coil heat exchanger 11 is communicated with the energy utilization device 19 through an inlet and an outlet of a medium; the heat-releasing coil heat exchanger 11 comprises a plurality of heat-releasing coil heat exchange tubes arranged at left and right positions, and the plurality of heat-releasing coil heat exchange tubes simultaneously perform heat-releasing and heat-exchanging work.
Specifically, a heat transfer medium outlet 6 of the heat storage coil heat exchanger 4 and a heat transfer medium inlet 5 of the heat storage coil heat exchanger 4 are respectively connected with a heat collector medium inlet 8 of a heat collector 7 and a heat collector medium outlet 9 of the heat collector 7.
Specifically, the heat storage coil heat exchanger 4 is of a single spiral structure or a double spiral structure, and the heat storage coil heat exchanger 4 is vertically arranged inside the heat storage single tank body 1.
Specifically, the second heat releasing medium inlet 17 of the energy utilization device 19 and the second heat releasing medium outlet 18 of the energy utilization device 19 are respectively connected to the first heat releasing medium outlet 16 of the heat releasing coil heat exchanger 11 and the first heat releasing medium inlet 15 of the heat releasing coil heat exchanger 11.
Specifically, heat release coil heat exchanger 11 is by a heat exchanger installation frame 10 fixed mounting in the inside of the single jar of body 1 of heat accumulation, heat release coil heat exchanger 11 makes through heat exchanger installation frame 10 can be certain angle and place in the inside of the single jar of body 1 of heat accumulation, and it can be 30 to place the angle for heat release coil heat exchanger 11's the heat exchange effect that releases heat is even.
Specifically, each phase change heat storage unit is filled with a phase change heat storage medium with a certain melting point, and the melting points of the phase change heat storage media in the first phase change heat storage unit 12, the second phase change heat storage unit 13, and the third phase change heat storage unit 14 are continuously increased.
The energy utilization device 19 may be an industrial heater or an industrial hot water supply device.
The use method of the single-tank heat storage device with the phase change heat storage function comprises a heat storage process and a heat release process;
in the heat storage process, after the heat of the heat collector 7 is absorbed by the heat storage medium in the heat storage single tank body 1, the temperature of the heat storage medium rises, the phase change heat storage units are sequentially melted from top to bottom due to the fact that the melting points of the phase change heat storage units from top to bottom are continuously improved, phase change latent heat is stored, and the heat provided by the heat collector 7 is absorbed by the heat storage coil heat exchanger 4 until the temperature of the heat storage medium in the whole heat storage unit rises.
In the heat release process, the heat release medium enters the heat release coil pipe heat exchanger 11, the heat in the heat storage single tank body 1 is taken out and enters the energy utilization device 19 to release heat, in the process, the heat storage temperature of the plurality of phase change heat storage units is sequentially reduced from bottom to top, and when all the phase change heat storage units are changed into a solid state, the whole heat release process is finished.
Example two:
referring to fig. 1-2, a single-tank heat storage device with phase change heat storage includes a heat storage single tank 1, a first phase change heat storage unit 12, a second phase change heat storage unit 13, a third phase change heat storage unit 14, a heat releasing coil heat exchanger 11, a heat storage coil heat exchanger 4, and a heat collector 7;
specifically, the heat storage single tank body 1 is fixedly placed by a tank body placing seat 3, the tank body placing seat 3 is fixedly installed at the bottom end of the outer portion of the heat storage single tank body 1, and a tank body control valve 2 for adjusting the internal temperature environment is further arranged at the top end of the heat storage single tank body 1;
specifically, the heat collector 7 is a heating device, the heat collector 7 can be a solar heat collector, and the heat collector 7 is arranged near the outside of the heat storage single tank body 1;
specifically, the heat storage coil heat exchanger 4 is heat transfer equipment, and the heat storage coil heat exchanger 4 is arranged at the bottom end inside the heat storage single tank body 1;
specifically, the first phase change heat storage unit 12, the second phase change heat storage unit 13 and the third phase change heat storage unit 14 are phase change heat storage devices, and three phase change heat storage units in the phase change heat storage devices are arranged at the top end of the interior of the heat storage single tank body 1 from top to bottom;
specifically, the heat-releasing coil heat exchanger 11 is arranged in the heat storage single tank body 1 from bottom to top, and the heat-releasing coil heat exchanger 11 is communicated with the energy utilization device 19 through an inlet and an outlet of a medium; the heat-releasing coil heat exchanger 11 comprises a plurality of heat-releasing coil heat exchange tubes arranged at left and right positions, and the plurality of heat-releasing coil heat exchange tubes simultaneously perform heat-releasing and heat-exchanging work.
Specifically, a heat transfer medium outlet 6 of the heat storage coil heat exchanger 4 and a heat transfer medium inlet 5 of the heat storage coil heat exchanger 4 are respectively connected with a heat collector medium inlet 8 of a heat collector 7 and a heat collector medium outlet 9 of the heat collector 7.
Specifically, the heat storage coil heat exchanger 4 is of a single spiral structure or a double spiral structure, and the heat storage coil heat exchanger 4 is vertically arranged inside the heat storage single tank body 1.
Specifically, the second heat releasing medium inlet 17 of the energy utilization device 19 and the second heat releasing medium outlet 18 of the energy utilization device 19 are respectively connected to the first heat releasing medium outlet 16 of the heat releasing coil heat exchanger 11 and the first heat releasing medium inlet 15 of the heat releasing coil heat exchanger 11.
Specifically, heat release coil heat exchanger 11 is by a heat exchanger installation frame 10 fixed mounting in the inside of the single jar of body of heat accumulation 1, heat release coil heat exchanger 11 makes through heat exchanger installation frame 10 can be certain angle and place in the inside of the single jar of body of heat accumulation 1, and it can be 0 to 30 to place the angle for heat release coil heat exchanger 11's the heat exchange effect that releases heat is even.
Specifically, each phase change heat storage unit is filled with a phase change heat storage medium with a certain melting point, and the melting points of the phase change heat storage media in the first phase change heat storage unit 12, the second phase change heat storage unit 13, and the third phase change heat storage unit 14 are continuously increased.
The energy utilization device 19 may be one of a thermoelectric energy conversion device, an industrial heater, or an industrial hot water supply device.
The use method of the single-tank heat storage device with the phase change heat storage function comprises a heat storage process and a heat release process;
in the heat storage process, after the heat of the heat collector 7 is absorbed by the heat storage medium in the heat storage single tank body 1, the temperature of the heat storage medium rises, the phase change heat storage units are sequentially melted from top to bottom due to the fact that the melting points of the phase change heat storage units from top to bottom are continuously improved, phase change latent heat is stored, and the heat provided by the heat collector 7 is absorbed by the heat storage coil heat exchanger 4 until the temperature of the heat storage medium in the whole heat storage unit rises.
In the heat release process, the heat release medium enters the heat release coil pipe heat exchanger 11, the heat in the heat storage single tank body 1 is taken out and enters the energy utilization device 19 to release heat, in the process, the heat storage temperature of the plurality of phase change heat storage units is sequentially reduced from bottom to top, and when all the phase change heat storage units are changed into a solid state, the whole heat release process is finished.
The invention has the beneficial effects that: according to the single-tank heat storage device with the phase change heat storage function and the using method, the heat storage medium in the heat storage single tank body 1 is heated by utilizing low-price valley electric energy at night, heat storage is achieved, the phase change heat storage unit on the top in the tank prolongs the heat release stabilization time of the heat storage device, meanwhile, the phase change heat storage medium is large in phase change range, long in heat release duration, small in temperature change and stable in heat release process.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A single-tank heat storage device with phase change heat storage is characterized by comprising a heat storage single tank body (1), a first phase change heat storage unit (12), a second phase change heat storage unit (13), a third phase change heat storage unit (14), a heat release coil heat exchanger (11), a heat storage coil heat exchanger (4) and a heat collector (7);
the heat storage single tank body (1) is fixedly placed by a tank body placing seat (3), the tank body placing seat (3) is fixedly installed at the bottom end of the outer portion of the heat storage single tank body (1), and a tank body control valve (2) used for adjusting the internal temperature environment is further arranged at the top end of the heat storage single tank body (1);
the heat collector (7) is a heating device, the heat collector (7) can be a solar heat collector, and the heat collector (7) is arranged near the outer part of the heat storage single tank body (1);
the heat storage coil heat exchanger (4) is heat transfer equipment, and the heat storage coil heat exchanger (4) is arranged at the bottom end inside the heat storage single tank body (1);
the first phase change heat storage unit (12), the second phase change heat storage unit (13) and the third phase change heat storage unit (14) are phase change heat storage devices, and three phase change heat storage units in the phase change heat storage devices are arranged at the top end of the interior of the heat storage single tank body (1) from top to bottom;
the heat-releasing coil heat exchanger (11) is arranged in the heat-storage single tank body (1) from bottom to top, and the heat-releasing coil heat exchanger (11) is communicated with the energy utilization device (19) through an inlet and an outlet of a medium; the heat-releasing coil heat exchanger (11) comprises a plurality of heat-releasing coil heat exchange tubes which are arranged at left and right positions, and the plurality of heat-releasing coil heat exchange tubes simultaneously release heat and exchange work.
2. The single-tank thermal storage device with phase-change thermal storage according to claim 1, wherein the heat transfer medium outlet (6) of the thermal storage coil heat exchanger (4) and the heat transfer medium inlet (5) of the thermal storage coil heat exchanger (4) are connected to the collector medium inlet (8) of the heat collector (7) and the collector medium outlet (9) of the heat collector (7), respectively.
3. The single-tank thermal storage device with phase-change thermal storage according to claim 1, wherein the thermal storage coil heat exchanger (4) is of a single-helix structure or a double-helix structure, and the thermal storage coil heat exchanger (4) is vertically arranged inside the thermal storage single tank (1).
4. The single-tank heat storage device with phase-change heat storage according to claim 1, wherein the second heat releasing medium inlet (17) of the energy utilizing device (19) and the second heat releasing medium outlet (18) of the energy utilizing device (19) are connected to the first heat releasing medium outlet (16) of the heat releasing coil heat exchanger (11) and the first heat releasing medium inlet (15) of the heat releasing coil heat exchanger (11), respectively.
5. The single-tank heat storage device with phase change heat storage according to claim 1, wherein the heat releasing coil heat exchanger (11) is fixedly installed inside the heat storage single tank body (1) by a heat exchanger installation frame (10), and the heat releasing coil heat exchanger (11) can be placed inside the heat storage single tank body (1) at an angle of 0 ° to 30 ° through the heat exchanger installation frame (10), so that the heat releasing and exchanging effects of the heat releasing coil heat exchanger (11) are uniform.
6. The single-tank heat storage device with phase change heat storage according to claim 1, wherein each phase change heat storage unit is filled with a phase change heat storage medium with a certain melting point, and the melting point of the phase change heat storage medium in the first phase change heat storage unit (12), the second phase change heat storage unit (13) and the third phase change heat storage unit (14) is continuously increased.
7. The single-tank thermal storage device with phase-change thermal storage according to claim 1, wherein the energy utilization device (19) is one of a thermoelectric energy conversion device, an industrial heater, and an industrial hot water supply device.
8. The use method of the single-tank heat storage device with the phase change heat storage function is characterized by comprising a heat storage process and a heat release process;
in the heat storage process, after the heat of the heat collector (7) is absorbed by the heat storage medium in the heat storage single tank body (1), the temperature of the heat storage medium rises, the melting points of the phase change heat storage units from top to bottom are continuously improved, so that the phase change heat storage medium in the units melts from top to bottom in sequence, the phase change latent heat is stored, and the heat provided by the heat collector (7) is absorbed by the heat storage coil heat exchanger (4) until the temperature of the heat storage medium in the whole heat storage unit rises.
In the heat release process, the heat release medium enters the heat release coil heat exchanger (11), the heat in the heat storage single tank body (1) is taken out and enters the energy utilization device (19) to release heat, in the process, the heat storage temperature of a plurality of phase change heat storage units is reduced from bottom to top in sequence, and when all the phase change heat storage units are changed into a solid state, the whole heat release process is finished.
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| CN2395216Y (en) * | 1999-07-23 | 2000-09-06 | 浙江大学 | Combined phase changing material heat storage device |
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| CN104833253A (en) * | 2015-05-19 | 2015-08-12 | 北京工业大学 | Single-tank heat storage device with phase change heat storage function and use method thereof |
| CN105423577A (en) * | 2015-12-24 | 2016-03-23 | 北京工业大学 | Cascading solar heat collection single-tank phase-change heat storage and heat release device and using method thereof |
| CN105444601A (en) * | 2015-12-24 | 2016-03-30 | 北京工业大学 | Single-tank heat storage and release device with cascade type phase change heat storage structure and using method for single-tank heat storage and release device |
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2020
- 2020-05-28 CN CN202010471214.2A patent/CN111750720A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2395216Y (en) * | 1999-07-23 | 2000-09-06 | 浙江大学 | Combined phase changing material heat storage device |
| US20120067551A1 (en) * | 2010-09-20 | 2012-03-22 | California Institute Of Technology | Thermal energy storage using supercritical fluids |
| CN104833253A (en) * | 2015-05-19 | 2015-08-12 | 北京工业大学 | Single-tank heat storage device with phase change heat storage function and use method thereof |
| CN105423577A (en) * | 2015-12-24 | 2016-03-23 | 北京工业大学 | Cascading solar heat collection single-tank phase-change heat storage and heat release device and using method thereof |
| CN105444601A (en) * | 2015-12-24 | 2016-03-30 | 北京工业大学 | Single-tank heat storage and release device with cascade type phase change heat storage structure and using method for single-tank heat storage and release device |
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Application publication date: 20201009 |
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| RJ01 | Rejection of invention patent application after publication |