CN210664077U - Heat storage device - Google Patents
Heat storage device Download PDFInfo
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- CN210664077U CN210664077U CN201921188652.7U CN201921188652U CN210664077U CN 210664077 U CN210664077 U CN 210664077U CN 201921188652 U CN201921188652 U CN 201921188652U CN 210664077 U CN210664077 U CN 210664077U
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- heat storage
- heat
- heat exchange
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- outlet
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- 238000005338 heat storage Methods 0.000 title claims abstract description 144
- 239000011261 inert gas Substances 0.000 claims abstract description 38
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 9
- 239000011343 solid material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012782 phase change material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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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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- Other Air-Conditioning Systems (AREA)
Abstract
The utility model relates to a heat-retaining field discloses a heat-retaining device, heat-retaining device includes: the heat storage device comprises a first shell, a second shell and a heat storage cavity, wherein a first air inlet and a first air outlet which are communicated with the heat storage cavity are formed in the first shell, the first air inlet is used for allowing inert gas to enter the heat storage cavity, and the first air outlet is used for allowing the inert gas to be discharged from the heat storage cavity; and the second shell is internally limited with a heat exchange cavity, the second shell is provided with an inlet for a heat exchange medium to enter the heat exchange cavity and an outlet for the heat exchange medium to be discharged from the heat exchange cavity, and the second shell is further provided with a second air inlet communicated with the heat exchange cavity, wherein the second air inlet is communicated with the first air outlet, so that the inert gas can transfer heat in the heat storage cavity to the heat exchange cavity for heat exchange with the heat exchange medium.
Description
Technical Field
The utility model relates to a heat-retaining field specifically relates to a heat-retaining device.
Background
Heat is an energy form, which is derived from sunlight, fire, etc., and can be directly used in the form of heat when used, or can be converted into electricity by being combined with a thermal power generation device. Of course, heat can also be used as an energy storage mode, and compared with other energy storage modes, the heat storage and energy storage mode has the advantages of low cost, long service life and no pollution.
At present, the research on heat storage is very many, and ways of heat storage by molten salt, solid materials and the like are endless. In these heat storage methods, how to increase the heat storage temperature and accelerate the heat exchange efficiency is a crucial issue. However, in the existing heat storage device, in order to accelerate the heat exchange efficiency, a high thermal conductive material (e.g., a metal material, a carbon material, etc.) is usually used as a heat storage medium, a heating element usually uses a metal substance, and cold air is directly introduced into the heat storage medium for heat exchange during heat exchange.
In order to solve the oxidation problem in the heat storage devices and improve the heat storage temperature, some heat storage devices adopt oxidation-resistant materials such as ceramic substances and the like as heat storage media, but the thermal conductivity of the oxidation-resistant materials is generally low, so that the heat exchange speed is limited, and the heat storage performance is limited.
Therefore, it is necessary to provide a heat storage device capable of simultaneously improving the heat storage temperature and the heat exchange efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heat-retaining device to solve above-mentioned problem.
In order to achieve the above object, the present invention provides a heat storage device, including:
the heat storage device comprises a first shell, a second shell and a heat storage cavity, wherein a first air inlet and a first air outlet which are communicated with the heat storage cavity are formed in the first shell, the first air inlet is used for allowing inert gas to enter the heat storage cavity, and the first air outlet is used for allowing the inert gas to be discharged from the heat storage cavity; and
a second shell, a heat exchange cavity is limited in the second shell, an inlet for heat exchange medium to enter the heat exchange cavity and an outlet for heat exchange medium to be discharged from the heat exchange cavity are arranged on the second shell, a second air inlet communicated with the heat exchange cavity is also arranged on the second shell,
the second air inlet is communicated with the first air outlet, so that the inert gas can transfer heat in the heat storage cavity to the heat exchange cavity to exchange heat with the heat exchange medium.
Optionally, the first air inlet and the first air outlet are respectively located at two opposite sides of the first housing, and the first air inlet is located below the first air outlet in the vertical direction; and/or
And a second gas outlet communicated with the heat exchange cavity is formed in the second shell, and the second gas outlet is communicated with the first gas inlet, so that the inert gas after heat exchange can return to the heat storage cavity.
Optionally, the inlet is located at a lower portion of the second housing, the outlet is located at an upper portion of the second housing, the second air inlet is located at a top portion of the second housing, and the second air outlet is located at a bottom portion of the second housing.
Optionally, the heat storage device includes a heat exchange pipeline disposed in the heat exchange cavity and used for the heat exchange medium to flow, the heat exchange pipeline has an inlet end and an outlet end, wherein:
the inlet end is connected to the inlet, and the outlet end is connected to the outlet; or
The inlet end extends out of the second shell through the inlet, and the outlet end extends out of the second shell through the outlet.
Optionally, the heat exchange line is a fin or a coil; and/or
The heat exchange medium is water or air.
Optionally, a heat storage medium and a heating body for supplying heat to the heat storage medium are arranged in the heat storage cavity, a heat insulation layer is further arranged in the heat storage cavity, and the heat insulation layer covers the inner wall of the first shell.
Optionally, the heat storage medium is a solid material or a phase change material with high thermal conductivity, and/or the heating element is a heating wire.
Optionally, the heat storage medium includes a plurality of platelike heat storage bodies that are, be provided with a plurality of in the heat storage intracavity the heat-generating body, it is a plurality of the heat storage body is the multiseriate and arranges, and adjacent two be formed with the confession between the heat storage body the passageway that inert gas passes through is located with two adjacent on the same row be provided with between the heat storage body the heat-generating body.
Optionally, the heat storage device includes a first pipeline for communicating the second air inlet with the first air outlet and a second pipeline for communicating the second air outlet with the first air inlet.
Optionally, the heat storage device comprises a gas pump arranged on the second pipeline and used for pumping the inert gas into the heat storage cavity.
The heat storage device of the utility model separates heat exchange and heat storage by respectively limiting the heat storage cavity and the heat exchange cavity by adopting independent shells, so that the heat exchange medium in the heat exchange cavity can not enter the heat storage cavity to oxidize the heat storage medium and the heating element in the heat storage cavity; meanwhile, inert gas is used as a heat transfer medium, so that an inert gas environment is formed in the heat storage cavity, the heat storage medium and the heating body in the heat storage cavity can be kept stable, the heat storage device can use a heat storage material with high heat conductivity as the heat storage medium, and a metal substance as the heating body, and therefore the heat storage temperature and the heat exchange efficiency can be improved simultaneously.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an embodiment of a heat storage device according to the present invention.
Description of the reference numerals
10-a first shell, 11-a first air inlet, 12-a first air outlet, 13-a heat storage body, 14-a heating body, 15-a heat insulation layer, 20-a second shell, 21-an inlet, 22-an outlet, 23-a second air inlet, 24-a second air outlet, 25-a heat exchange pipeline, 251-an inlet end, 252-an outlet end, 30-a first pipeline, 40-a second pipeline and 50-a gas pump.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms of orientation such as "upper, lower, top, and bottom" used herein generally refer to the orientation in the mounted and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
The utility model provides a heat-retaining device, heat-retaining device includes:
a first shell 10, wherein a heat storage cavity is defined in the first shell 10, a first air inlet 11 and a first air outlet 12 which are communicated with the heat storage cavity are formed in the first shell 10, the first air inlet 11 is used for allowing inert gas to enter the heat storage cavity, and the first air outlet 12 is used for allowing the inert gas to be discharged from the heat storage cavity; and
a second casing 20, a heat exchange cavity is defined in the second casing 20, an inlet 21 for a heat exchange medium to enter the heat exchange cavity and an outlet 22 for the heat exchange medium to be discharged from the heat exchange cavity are opened on the second casing 20, a second air inlet 23 communicated with the heat exchange cavity is also opened on the second casing 20,
the second gas inlet 23 is communicated with the first gas outlet 12, so that the inert gas can transfer heat in the heat storage cavity to the heat exchange cavity to exchange heat with the heat exchange medium.
Through the scheme, when the heat storage device is used, inert gas (such as nitrogen, helium and the like) enters the heat storage cavity from the first air inlet 11 on the first shell 10 to be heated, the hot inert gas is communicated to the second air inlet 23 through the first air outlet 12, then enters the heat exchange cavity from the second air inlet 23, and the carried heat is transferred to the heat exchange medium.
The heat storage device of the utility model separates heat exchange and heat storage by respectively limiting the heat storage cavity and the heat exchange cavity by adopting independent shells, so that the heat exchange medium in the heat exchange cavity can not enter the heat storage cavity to oxidize the heat storage medium and the heating element in the heat storage cavity; meanwhile, inert gas is used as a heat transfer medium, so that an inert gas environment is formed in the heat storage cavity, the heat storage medium and the heating body in the heat storage cavity can be kept stable, therefore, the heat storage device can use a heat storage material with high heat conductivity as the heat storage medium and a metal substance as the heating body, and the heat storage temperature and the heat exchange efficiency can be improved simultaneously.
In order to improve the heat transfer effect of the inert gas, as shown in fig. 1, the first gas inlet 11 and the first gas outlet 12 may be respectively located at two opposite sides of the first housing 10, and the first gas inlet 11 may be located below the first gas outlet 12 in a vertical direction. Thus, the inert gas entering from the first gas inlet 11 can be diffused to the whole heat storage cavity and discharged after being in full contact with the heat storage medium in the heat storage cavity.
In addition, in order to make the inert gas capable of being recycled, a second air outlet 24 communicated with the heat exchange cavity may be formed on the second housing 20, and the second air outlet 24 is communicated with the first air inlet 11, so that the inert gas after heat exchange can be returned to the heat storage cavity for heating.
In order to improve the heat exchange effect between the inert gas and the heat exchange medium in the heat exchange cavity, as shown in fig. 1, the inlet 21 may be located at a lower portion of the second casing 20, the outlet 22 is located at an upper portion of the second casing 20, the second gas inlet 23 is located at a top portion of the second casing 20, and the second gas outlet 24 is located at a bottom portion of the second casing 20. In this way, the hot inert gas flows downwards from the top of the heat exchange cavity, and the heat exchange medium flows upwards from the lower part of the heat exchange cavity, so that the inert gas can be in full contact with the heat exchange medium for heat exchange.
In the present invention, it should be noted that the heat exchange medium may be any suitable gas (e.g. air) or liquid (e.g. water). It can be understood that the heat storage device of the present invention can store low-cost heat (for example, heat generated by solar energy, heat converted by low-price electricity, or industrial waste heat), and then transfer the stored heat to a heat exchange medium to be utilized (for example, air conditioning, hot water, etc.) when necessary, thereby achieving effective utilization of heat.
In order to realize the effective flow and heat exchange of the heat exchange medium in the heat exchange cavity, as shown in fig. 1, the heat storage device further includes a heat exchange pipeline 25 disposed in the heat exchange cavity for the flow of the heat exchange medium, and the heat exchange pipeline 25 has an inlet end 251 and an outlet end 252. It will be appreciated that heat exchange medium may enter heat exchange line 25 from inlet end 251, flow along heat exchange line 25 and exit from outlet end 252. The inlet end 251 and the outlet end 252 may be arranged differently according to the structure of the heat exchange pipeline 25, for example, the inlet end 251 may be connected to the inlet 21 (i.e., the inlet end 251 is located in the heat exchange cavity or flush with the inlet 21, for example, the inlet end 251 may be in butt communication with the inlet 21), and the outlet end 252 may be connected to the outlet 22 (i.e., the outlet end 252 is located in the heat exchange cavity or flush with the outlet 22, for example, the outlet end 252 may be in butt communication with the outlet 22). It is also possible to have the inlet end 251 extend out of the second housing 20 through the inlet 21 and the outlet end 252 extend out of the second housing 20 through the outlet 22, as shown in fig. 1. Therein, it is understood that both the inlet end 251 and the outlet end 252 are hermetically protruded out of the second housing 20 in order to prevent the loss of the inert gas. In the above, the inlet end 251 may be communicated with a heat exchange medium supply source, and the outlet end 252 may be communicated with a heat exchange medium using end.
In the foregoing, the heat exchange pipeline 25 may adopt a pipeline with any shape, and may also be arbitrarily extended in the heat exchange cavity, for example, the heat exchange pipeline 25 may be a fin or a coil. For example, the embodiment shown in fig. 1, the utility model discloses a heat transfer pipeline 25 can prolong heat transfer medium through the form that adopts the coil pipe greatly is in the flow stroke of heat transfer intracavity to increase heat transfer medium and inert gas's heat transfer time and heat transfer area, can effectively improve the heat transfer effect.
In the utility model discloses, be provided with heat-retaining medium in the heat-retaining intracavity and be used for to heat-generating body 14 of heat-retaining medium heat supply. The heat storage medium can be a solid material (such as carbon, ceramic, metal, and the like) or a phase change material (such as paraffin, inorganic salt, molten salt, metal, and the like) with high thermal conductivity. The heating element 14 may be a heating wire.
Wherein, heat-retaining medium and heat-generating body 14 can set up with arbitrary mode, as long as guarantee that heat-generating body 14 can do the heat-retaining medium heat supply, and do not hinder inert gas in the heat-retaining intracavity flow can, the utility model discloses do not restrict. For example, a heat storage medium may be filled in the middle region of the heat storage chamber, heating wires may be inserted into the heat storage medium (which may facilitate the heat generated by the heating wires to be stored in the heat storage medium), and a passage for flowing an inert gas may be formed between the heat storage medium and the inner wall of the first housing 10. Of course, the first air inlet 11 and the first air outlet 12 are in communication with the channel.
For example, in the embodiment shown in fig. 1, the heat storage medium may include a plurality of plate-shaped heat storage bodies 13, a plurality of heat generators 14 are disposed in the heat storage cavity, the heat storage bodies 13 are arranged in a plurality of rows, a channel for the inert gas to pass through is formed between two adjacent heat storage bodies 13, and the heat generators 14 are disposed between two adjacent heat storage bodies 13 in the same row. Wherein, the bottom of the heat storage body 13 can be formed with a groove for embedding the heating element 14, so that the heat storage body 13 can wrap the heating element 14, thereby improving the heat storage effect. Of course, the heat storage body 13 may be formed as a cylinder having a through hole in the middle thereof, and the heating body 14 may be inserted into the through hole. Note that the plurality of heat storage bodies 13 and the plurality of heat generating elements 14 may have any suitable arrangement, and are not limited to those shown in fig. 1. The heat storage body 13 may have any suitable structure.
In order to further improve the heat storage temperature of the heat storage medium in the heat storage cavity, a heat insulation layer 15 can be further arranged in the heat storage cavity, and the heat insulation layer 15 covers the inner wall of the first shell 10. Thus, the heat storage medium and the heating element 14 can be wrapped in the heat insulation layer 15 to carry out heat insulation protection, and therefore heat loss is effectively prevented. Also, the heat generated by the heat-generating body 14 can be entirely stored in the heat storage medium.
In the present invention, the heat storage device may further include a second air inlet 23 communicating with the first pipeline 30 of the first air outlet 12 and a second pipeline 40 communicating with the second air outlet 24 and the first air inlet 11.
In addition, the heat storage device may further include a gas pump 50 disposed on the second pipeline 40 for pumping the inert gas into the heat storage chamber. The provision of the gas pump 50 can facilitate the circulation of the inert gas between the heat storage chamber and the heat exchange chamber.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (10)
1. A heat storage device, comprising:
the heat storage device comprises a first shell (10), wherein a heat storage cavity is defined in the first shell (10), a first air inlet (11) and a first air outlet (12) which are communicated with the heat storage cavity are formed in the first shell (10), the first air inlet (11) is used for allowing inert gas to enter the heat storage cavity, and the first air outlet (12) is used for allowing the inert gas to be discharged from the heat storage cavity; and
a second shell (20), a heat exchange cavity is defined in the second shell (20), an inlet (21) for heat exchange medium to enter the heat exchange cavity and an outlet (22) for heat exchange medium to be discharged from the heat exchange cavity are arranged on the second shell (20), a second air inlet (23) communicated with the heat exchange cavity is also arranged on the second shell (20),
the second gas inlet (23) is communicated with the first gas outlet (12), so that the inert gas can transfer heat in the heat storage cavity to the heat exchange cavity to exchange heat with the heat exchange medium.
2. Heat storage device according to claim 1,
the first air inlet (11) and the first air outlet (12) are respectively positioned at two opposite sides of the first shell (10), and the first air inlet (11) is positioned below the first air outlet (12) in the vertical direction; and/or
And a second gas outlet (24) communicated with the heat exchange cavity is formed in the second shell (20), and the second gas outlet (24) is communicated with the first gas inlet (11), so that the inert gas after heat exchange can return to the heat storage cavity.
3. Heat storage device according to claim 2, characterised in that the inlet (21) is located in the lower part of the second housing (20), the outlet (22) is located in the upper part of the second housing (20), the second inlet (23) is located in the top part of the second housing (20), and the second outlet (24) is located in the bottom part of the second housing (20).
4. Heat storage device according to claim 1, characterized in that it comprises a heat exchange line (25) arranged in the heat exchange chamber for the flow of the heat exchange medium, the heat exchange line (25) having an inlet end (251) and an outlet end (252), wherein:
the inlet end (251) is connected at the inlet (21) and the outlet end (252) is connected at the outlet (22); or
The inlet end (251) extends out of the second shell (20) through the inlet (21), and the outlet end (252) extends out of the second shell (20) through the outlet (22).
5. Heat storage device according to claim 4,
the heat exchange pipeline (25) is a fin or a coil; and/or
The heat exchange medium is water or air.
6. The heat storage device according to any one of claims 1 to 5, wherein a heat storage medium and a heating element (14) for supplying heat to the heat storage medium are arranged in the heat storage chamber, a heat insulation layer (15) is further arranged in the heat storage chamber, and the heat insulation layer (15) covers the inner wall of the first shell (10).
7. Heat storage device according to claim 6, characterised in that the heat storage medium is a solid material or a phase change type material with high thermal conductivity and/or the heat generating body (14) is a heating wire.
8. The heat storage device according to claim 6, wherein the heat storage medium comprises a plurality of plate-shaped heat storage bodies (13), a plurality of heating bodies (14) are arranged in the heat storage cavity, the plurality of heat storage bodies (13) are arranged in multiple rows, a channel for the inert gas to pass through is formed between two adjacent rows of the heat storage bodies (13), and the heating bodies (14) are arranged between two adjacent heat storage bodies (13) in the same row.
9. Heat storage device according to claim 2 or 3, characterised in that it comprises a first conduit (30) for communicating the second air inlet (23) with the first air outlet (12) and a second conduit (40) for communicating the second air outlet (24) with the first air inlet (11).
10. Heat storage device according to claim 9, characterised in that it comprises a gas pump (50) arranged on the second line (40) for pumping the inert gas into the heat storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188652.7U CN210664077U (en) | 2019-07-25 | 2019-07-25 | Heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188652.7U CN210664077U (en) | 2019-07-25 | 2019-07-25 | Heat storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210664077U true CN210664077U (en) | 2020-06-02 |
Family
ID=70816421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921188652.7U Active CN210664077U (en) | 2019-07-25 | 2019-07-25 | Heat storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210664077U (en) |
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2019
- 2019-07-25 CN CN201921188652.7U patent/CN210664077U/en active Active
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