CN113503759A - Chemical heat storage device - Google Patents

Chemical heat storage device Download PDF

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Publication number
CN113503759A
CN113503759A CN202110892407.XA CN202110892407A CN113503759A CN 113503759 A CN113503759 A CN 113503759A CN 202110892407 A CN202110892407 A CN 202110892407A CN 113503759 A CN113503759 A CN 113503759A
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Prior art keywords
heat
heat storage
storage medium
chemical
storage device
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平田一弘
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/003Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention addresses the problem of providing a chemical heat storage device that can suppress radiant heat loss from a chemical heat storage material held in a housing container during heat exchange in chemical heat storage, and can further improve heat storage efficiency. In order to solve the above problem, a chemical heat storage device is provided with: a thermal storage medium; a heat exchanger that exchanges heat between the heat storage medium and a heat medium fluid; and a housing container that houses the heat storage medium and the heat exchange unit, wherein a 1 st heat reflection member that is disposed apart from an inner wall of the housing container is provided between the heat storage medium and the housing container. According to this chemical heat storage device, the 1 st heat reflecting member can return the radiant heat from the heat storage medium generated by heat exchange to the heat storage medium side. Further, by disposing the 1 st heat reflecting member separately from the inner wall of the housing container, absorption of reaction heat into the housing container can be suppressed, and a more excellent heat insulating effect can be obtained.

Description

Chemical heat storage device
The application is a divisional application of Chinese invention patent application with application date of 2018, 2 and 13 months, application number of 201880010269.4 and name of 'chemical heat storage device'.
Technical Field
The present invention relates to a chemical heat storage device.
Background
Since a large amount of waste heat is generated in a factory, a waste incineration plant, or the like, a heat storage system for storing and utilizing the waste heat has been developed from the viewpoint of energy saving and effective utilization of unused energy. In particular, it is known that: chemical heat storage using a chemical reaction of a substance has a very high heat storage density compared to sensible heat storage or latent heat storage, and heat dissipation loss is almost zero even if the substance is stable before and after the chemical reaction, and heat loss does not occur during long-term heat storage.
For example, patent document 1 discloses a chemical heat storage reactor that stores thermal energy such as waste heat in a chemical heat storage material that stores thermal energy as a chemical reaction, and stores or transports the stored chemical heat storage material to a place where thermal energy is required to use the stored chemical heat storage material.
Patent document 1 describes a system in which a calcium hydroxide-based heat storage material is used as a chemical heat storage material in order to efficiently store high-temperature waste heat exceeding 400 degrees as a specific example of chemical heat storage. When high-temperature waste heat (as a heat-supplying fluid) is supplied to calcium hydroxide, calcium oxide is generated by a dehydration reaction, and this reaction is an endothermic reaction, and therefore, a heat storage effect is exhibited. On the other hand, when water (steam) is supplied as a heat receiving fluid to calcium oxide, calcium hydroxide is generated by a hydration reaction, and this reaction is an exothermic reaction, and therefore, a heat radiation effect is exhibited.
Further, patent document 1 discloses the following apparatus: in the housing container, a plurality of fluid (heating fluid/heating fluid) flow paths and a plurality of chemical heat storage materials are alternately arranged, and a heat receiving and dissipating plate for improving the heat exchange efficiency between the chemical heat storage materials and the fluid is disposed along the fluid flow paths.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-118315
Disclosure of Invention
Technical problem to be solved by the invention
In conventional chemical heat storage devices, waste heat is effectively utilized by selecting a chemical heat storage material and by a configuration that improves the heat exchange efficiency between the chemical heat storage material and a fluid. However, since it is a matter of course that heat exchange is performed at a high temperature in order to store high-temperature waste heat exceeding 400 degrees, radiant heat loss from the holding member itself holding the chemical heat storage material cannot be ignored.
Therefore, an object of the present invention is to provide a chemical heat storage device capable of suppressing radiant heat loss from a chemical heat storage material held in a housing container in heat exchange of chemical heat storage, and further improving heat storage efficiency.
Means for solving the technical problem
As a result of intensive studies to solve the above problems, it has been found that in a chemical heat storage device, heat storage efficiency can be improved by providing a heat reflecting member for suppressing radiation between a housing container and a chemical heat storage material, and the present invention has been completed.
Namely, the present invention provides the following chemical heat storage device.
A chemical heat storage device according to the present invention for solving the above problems is a chemical heat storage device that heats a heat storage medium during heat storage to separate the heat storage medium into a heat storage product and a generation fluid, and that generates the heat storage medium by reacting the heat storage product with a reaction fluid during heat dissipation, the chemical heat storage device including: the heat storage medium; a heat exchange unit through which a heat medium fluid passes and which exchanges heat between the heat storage medium and the heat medium fluid; and a housing container which houses the heat storage medium and the heat exchange unit, and which has a supply port for supplying a heat medium fluid to the heat exchange unit from the outside and an exhaust port for exhausting the heat medium fluid subjected to heat exchange with the heat storage medium to the outside, wherein a 1 st heat reflecting member is provided between the heat storage medium and the housing container, and the 1 st heat reflecting member is disposed apart from an inner wall of the housing container.
According to this chemical heat storage device, the 1 st heat reflecting member can return the radiant heat from the heat storage medium generated by heat exchange to the heat storage medium side. Further, by disposing the 1 st heat reflecting member separately from the inner wall of the housing container, it is possible to form an air layer between the 1 st heat reflecting member and the housing container while suppressing absorption of radiant heat into the housing container, and it is possible to obtain a more excellent heat insulating effect.
In addition, in an embodiment of the chemical thermal storage device according to the present invention, the 1 st heat reflecting member includes a 1 st ventilation portion.
In chemical heat storage requiring the coupling/decoupling of the chemical heat storage material and the generated/reacted fluid, it is preferable to increase the degree of freedom of movement of the gas after the reaction while shielding heat. According to this feature, since a moving path of the generated fluid after the reaction is formed, separation of the heat storage medium and the generated gas becomes possible.
In one embodiment of the chemical thermal storage device according to the present invention, the 1 st ventilation portion of the 1 st heat reflecting member is a slit or a hole formed in the 1 st heat reflecting member.
According to this feature, the moving path of the generated fluid after the reaction can be formed with a simple structure.
In one embodiment of the chemical thermal storage device according to the present invention, a 2 nd heat reflecting member is provided between the 1 st heat reflecting member and the housing container, and the 2 nd heat reflecting member is disposed apart from the 1 st heat reflecting member and the inner wall of the housing container.
According to this feature, the radiant heat released from the 1 st heat reflecting member and released from the 1 st ventilation part can be returned to the heat storage medium side by the 2 nd heat reflecting member, and therefore the heat shielding effect can be further improved.
In one embodiment of the chemical thermal storage device according to the present invention, the 2 nd heat reflecting member includes a 2 nd ventilation portion, and the 2 nd ventilation portion is disposed so as not to overlap with the 1 st ventilation portion of the 1 st heat reflecting member.
According to this feature, the radiant heat emitted from the 1 st ventilation part is returned to the heat storage medium side by being reflected by the 2 nd heat reflecting member without passing through the 2 nd ventilation part, and therefore the heat shielding effect can be further improved.
Effects of the invention
According to the chemical heat storage device of the present invention, it is possible to suppress heat release toward the housing container caused by radiation from the heat storage medium held in the housing container during heat storage. This can improve the heat storage efficiency.
Drawings
Fig. 1 is a schematic diagram showing the configuration of a chemical heat storage device according to a first embodiment of the present invention.
Fig. 2 is a schematic diagram showing the structure of a chemical heat storage device according to a second embodiment of the present invention.
Fig. 3 is a schematic diagram showing the structure of a chemical heat storage device according to a third embodiment of the present invention.
Fig. 4 is a schematic diagram showing the structure of a chemical heat storage device according to a fourth embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the drawings.
[ chemical Heat storage device ]
The chemical heat storage device according to the present invention is a chemical heat storage device that heats a heat storage medium to separate the heat storage medium into a heat storage product and a generation fluid during heat storage and causes the heat storage product to react with a reaction fluid during heat dissipation to generate the heat storage medium, and is a device that can store waste heat generated from a factory, a waste incineration plant, or the like in the heat storage medium and transport the heat storage medium to a heat demand place requiring heat.
The heat storage device of the present invention includes: a thermal storage medium; a heat exchange unit through which a heat medium fluid passes and which exchanges heat between the heat storage medium and the heat medium fluid; and a housing container that houses the heat storage medium and the heat exchanger, the housing container having a supply port that supplies a heat medium fluid to the heat exchanger from the outside and an exhaust port that exhausts the heat medium fluid heat-exchanged with the heat storage medium to the outside, and a 1 st heat reflection member disposed apart from an inner wall of the housing container is provided between the heat storage medium and the housing container.
[ first embodiment ]
Fig. 1 is a schematic diagram showing the structure of a thermal storage device 1a according to a first embodiment of the present invention. The thermal storage device 1a includes a thermal storage medium 4 and a housing container 2 housing a holding member 5 holding the thermal storage medium 4, and a heat exchanger 3 that exchanges heat with the thermal storage medium 4 and through which a heat medium fluid from the outside passes is provided inside the housing container 2. The housing container 2 is provided with a fluid supply port 8 through which the heat medium fluid is supplied from the outside and a fluid discharge port 9 through which the heat medium fluid is discharged to the outside. Further, a 1 st heat reflecting member 6 is disposed between the storage container 2 and the holding member 5, and the 1 st heat reflecting member 6 is disposed apart from the inner wall of the storage container 2.
Hereinafter, each configuration will be described in detail.
(Heat-storing Medium)
The thermal storage medium 4 is a chemical substance that separates into a thermal storage product and a production fluid when heated and releases heat through a reaction opposite thereto. For example, calcium oxide (CaO) and water vapor (H) can be given as the heat-accumulative product and the fluid to be formed2O), calcium chloride (CaCl)2) And water vapor (H)2O), calcium bromide (CaBr)2) And water vapor (H)2O), calcium iodide (CaI)2) And water vapor (H)2O), magnesium oxide (MgO) and water vapor (H)2O), magnesium chloride (MgCl)2) And water vapor (H)2O), zinc chloride (ZnCl)2) And water vapor (H)2O), strontium chloride (SrCl)2) And ammonia (NH)3) Strontium bromide (SrBr)2) And ammonia (NH)3) Calcium oxide (CaO) and carbon dioxide (CO)2) Magnesium oxide (MgO) and carbon dioxide (CO)2) And the like. From the viewpoint of easy handling and use, it is preferable to use steam as the generating fluid and the reaction fluid in the heat storage medium 4.
Further, since the chemical heat storage device of the present invention is particularly effective in chemical heat storage at high temperatures, it is preferable to use a combination of calcium oxide and steam (400 to 500 degrees) or a combination of magnesium oxide and steam (300 to 400 degrees) as a heat storage product and a generating fluid that can chemically store heat at high temperatures as the heat storage medium 4 of the present invention.
The structure and shape of the heat storage medium 4 in the present invention are not particularly limited, and may be a powder, a molded body obtained by molding a powder, or a structure in which a porous body supports the heat storage medium 4.
The structure of the holding member 5 that holds the thermal storage medium 4 is not particularly limited as long as it can hold the thermal storage medium 4 in the housing container 2 and can exchange heat between the thermal storage medium 4 and the heat exchange portion 3. In fig. 1, the structure in which the heat storage medium 4 is accommodated in one container is illustrated, but the structure is not limited to this, and for example, a structure in which a plurality of box-shaped containers or tray-shaped containers accommodating the heat storage medium 4 are stacked may be employed.
The material of the holding member 5 is not particularly limited as long as it can withstand high-temperature treatment.
(accommodation container)
The storage container 2 is configured to store the heat storage medium 4, and is formed of a sealable structure. The housing container 2 includes a heat exchange portion 3 through which a fluid for heat transfer between the thermal storage medium 4 housed therein and the outside passes, a fluid supply port 8 through which a heat medium fluid from the outside is supplied to the heat exchange portion 3 for heat exchange, and a fluid discharge port 9 through which the fluid is discharged from the heat exchange portion 3.
As for the heat exchange portion 3, any shape of heat exchange portion may be used as long as heat transfer can be performed between the heat storage medium 4 housed inside the holding member 5 and the heat medium fluid from the outside, and for example, the heat exchange portion may be configured by a heat exchange tube provided inside the holding member 5 by meandering bending, or a double cylindrical inner tube portion with respect to the holding member 5.
The fluid supply port 8 and the fluid discharge port 9 may be disposed on different surfaces of the storage container 2, or may be disposed on the same surface. For example, as shown in fig. 1, the following configuration may be adopted: a fluid supply port 8 is provided at a lower portion of the storage container 2 along the central axis of the storage container 2, and a fluid discharge port 9 is provided at an upper portion of the storage container 2. Further, if the fluid supply port 8 and the fluid discharge port 9 are provided on the same surface of the housing container 2 and the fluid is supplied and discharged through one surface, the overall structure of the thermal storage device 1a becomes compact, and thus the degree of freedom of the installation position of the thermal storage device 1 can be increased.
The storage container 2 further includes: an atmosphere opening port 10 for releasing the generated fluid generated from the thermal storage medium 4 at the time of thermal storage into the atmosphere, and an air inlet port 11 for supplying a reaction fluid that reacts with the thermal storage product at the time of heat dissipation. In the thermal storage device 1a according to the first embodiment, the same vent port is used for the atmosphere opening port 10 and the air intake port 11, but they may be provided at different positions.
The atmosphere opening port 10 is opened during heat storage to discharge the generated fluid generated from the heat storage medium 4 to the outside of the housing container 2, but a liquid receiving tank for collecting the generated fluid by coagulation may be provided. Since the atmosphere opening port 10 is provided, the generated fluid is released to the outside, and therefore, it is not necessary to provide a liquid receiving tank for condensing and recovering the generated fluid, and it is not necessary to transport the generated fluid from a place where heat is supplied to a place where heat is required. Therefore, the device has the advantages of compactness, low conveying cost and the like.
The inlet port 11 is opened during heat dissipation to supply the reaction fluid to the housing container 2, and is connected to a supply unit (not shown) for supplying the reaction fluid during heat dissipation.
The heat medium fluid may be a fluid at a temperature at which heat can be supplied to the heat storage medium 4, and is preferably a fluid such as a gas or a liquid. From the viewpoint of further improving the operability, the use of a gas is particularly preferable.
(1 st Heat reflection Member)
The 1 st heat reflecting member 6 is provided between the housing container 2 and the thermal storage medium 4, and is disposed apart from the inner wall of the housing container 2.
The 1 st heat reflecting member 6 is configured to reflect again the radiant heat released from the holding member 5 holding the heat storage medium 4 at the time of heat storage toward the heat storage medium 4. By providing the 1 st heat reflecting member 6, absorption of radiant heat into the housing container 2 can be suppressed, and the heat storage effect can be improved. Further, by disposing the 1 st heat reflecting member 6 separately from the inner wall of the housing container 2, an air layer is formed between the 1 st heat reflecting member 6 and the housing container 2, and a further excellent heat insulating effect can be obtained.
The specific structure of the 1 st heat reflecting member 6 is not particularly limited as long as it can reflect the radiant heat released from the holding member 5 toward the heat storage medium 4, and, as shown in fig. 1, for example, a box-like structure surrounding the entire holding member 5 or a cylindrical structure disposed so as to surround the holding member 5 may be employed. The 1 st heat reflecting member 6 may have a combination of a cylindrical structure surrounding the holding member 5 and a structure covering either the upper or lower side of the holding member 5. Further, the 1 st heat reflecting member 6 may also be structured to have a curved surface so as to efficiently concentrate heat on the heat storage medium 4 side.
The 1 st heat reflecting member 6 is made of a material capable of reflecting radiant heat. Examples of the metal of such a material include aluminum, iron, copper, brass, silver, gold, platinum, nickel, stainless steel, chromium, and tungsten. Further, examples of the nonmetal include quartz glass, alumina ceramics, magnesia ceramics, and firebricks.
In addition, the 1 st heat reflecting member 6 of the present invention is preferably selected in consideration of emissivity of the material. From the relationship of reflectance to 1-emissivity, it is known that the lower the emissivity, the higher the reflectance of the material. The emissivity is a ratio of the emissivity of the radiator defined in JISZ8117 to the emissivity of a black body having the same temperature as the radiator, and the emissivity measurement value is a value obtained by measuring the spectral emissivity by FTIR defined in JISR 1801. In addition, emissivity is a temperature-dependent parameter.
The emissivity of a material also depends on the surface state of the material. Since the smaller the irregularities on the surface, the lower the emissivity, the more preferable the metal material is to have a polished surface rather than an oxidized surface or a rough surface.
The 1 st heat reflecting member 6 of the present invention is a member having an emissivity of a material at a temperature during heat storage of 0.5 or less, more preferably 0.1 or less, and still more preferably 0.05 or less.
[ other embodiments of the Heat storage device ]
Other embodiments of the heat storage device will be exemplified below.
[ second embodiment ]
Fig. 2 is a schematic diagram showing the structure of a thermal storage device 1b according to a second embodiment of the present invention.
The thermal storage device 1b is configured such that the 1 st air vent 61 is provided in the 1 st heat reflecting member 6 of the thermal storage device 1a according to the first embodiment. In chemical heat storage requiring the coupling/decoupling of the chemical heat storage material to/from the generating/reacting fluid, it is preferable to increase the degree of freedom of movement of the gas while shielding heat. According to the heat storage device 1b, since the movement path of the generated fluid after the reaction is formed, the heat storage medium and the generated fluid are effectively separated, and the heat exchange efficiency can be improved.
As the structure in which the 1 st ventilation part 61 is provided in the 1 st heat reflecting member 6 in the thermal storage device 1b according to the second embodiment, as shown in fig. 2, a structure in which a plurality of plate-like members are arranged in a louver shape, or a structure in which slits, holes, or the like are formed in the plate-like members as ventilation ports may be employed.
In particular, the 1 st ventilation part 61 of the present invention is preferably configured to have a ventilation port in a plate-like member. By adopting this configuration, the separation of the generated fluid from the heat storage medium can be induced with a simple configuration.
[ third embodiment ]
Fig. 3 is a schematic diagram showing the structure of a thermal storage device 1c according to a third embodiment of the present invention.
In the thermal storage device 1c, the 2 nd heat reflecting member 7 is provided outside the 1 st heat reflecting member 6 of the thermal storage device 1b according to the second embodiment, and the 2 nd heat reflecting member 7 is disposed separately from the inner wall of the housing container 2 and the 1 st heat reflecting member 6. According to this thermal storage device 1c, the radiant heat released by the 1 st heat reflecting member 6 or the radiant heat released from the 1 st air-passing portion 61 can be reflected toward the thermal storage medium 4, and therefore the thermal storage effect can be further improved.
The specific structure of the 2 nd heat reflecting member 7 is not particularly limited as long as it is a structure for reflecting radiant heat released from the holding member 5 toward the heat storage medium 4, as in the 1 st heat reflecting member 6 described above, and for example, a box-like structure surrounding the entire holding member 5 or a cylindrical structure disposed so as to surround the periphery of the holding member 5 may be employed. The 2 nd heat reflecting member 7 may have a combination of a cylindrical structure surrounding the holding member 5 and a structure covering either the upper or lower side of the holding member 5. Further, the 2 nd heat reflecting member 7 may also be structured to have a curved surface so as to efficiently concentrate heat on the heat storage medium 4 side.
The 2 nd heat reflecting member 7 is made of a material capable of reflecting radiant heat. Examples of the metal of such a material include aluminum, iron, copper, brass, silver, gold, platinum, nickel, stainless steel, chromium, and tungsten. Further, examples of the nonmetal include quartz glass, alumina ceramics, magnesia ceramics, and firebricks.
In addition, the 2 nd heat reflecting member 7 of the present invention is preferably selected in consideration of emissivity of the material.
As the 2 nd heat reflecting member 7 of the present invention, a member having an emissivity of a material at a temperature during heat storage of 0.5 or less, more preferably 0.1 or less, and further preferably 0.05 or less is used.
The 2 nd heat reflecting member 7 and the 1 st heat reflecting member 6 may be made of the same material or different materials.
[ fourth embodiment ]
Fig. 4 is a schematic diagram showing the structure of a thermal storage device 1d according to a fourth embodiment of the present invention.
This thermal storage device 1d is configured such that the 2 nd ventilation portion 71 is provided in the 2 nd heat reflecting member 7 of the thermal storage device 1c according to the third embodiment. According to this heat storage device 1d, since the movement path of the generated fluid after the reaction is formed in both the heat reflecting members, the heat storage medium and the generated fluid are effectively separated from each other, and the heat exchange efficiency can be improved.
As the configuration in which the 2 nd ventilation portion 71 is provided in the 2 nd heat reflecting member 7 in the thermal storage device 1d according to the fourth embodiment, a configuration in which a plurality of plate-like members are arranged in a louver shape, or a configuration in which slits, holes, or the like are formed as ventilation ports in the plate-like members as shown in fig. 4 may be employed.
As shown in fig. 4, the 2 nd ventilation part 71 of the present invention is particularly preferably configured or arranged so as not to overlap with the 1 st ventilation part 61. With this configuration, the radiant heat radiated from the 1 st ventilation part 61 can be returned to the heat storage medium 4 side without directly passing through the 2 nd ventilation part 71 but being reflected by the 2 nd heat reflecting member 7, and therefore the effect of heat shielding can be further improved.
Industrial applicability
The chemical heat storage device of the present invention is used for a method of effectively utilizing waste heat generated from a factory, a waste incineration plant, or the like. For example, the chemical heat storage device of the present invention stores heat in a heat supply place where waste heat is generated, and transmits the heat storage device to a heat demand place where heat is required, and dissipates the heat. In addition, the present invention can also be used in a method of storing heat in a time zone where waste heat is generated and dissipating heat in a time zone where heat is required in the same installation place, such as storing heat in the daytime and dissipating heat at night.
Description of the symbols
1a, 1b, 1c, 1 d-chemical thermal storage device, 2-housing vessel, 3-heat exchange section, 4-thermal storage medium, 5-holding member, 6-1 st heat reflection member, 61-1 st ventilation section, 7-2 nd heat reflection member, 71-2 nd ventilation section, 8-fluid supply port, 9-fluid discharge port, 10-atmosphere opening port, 11-air intake port.

Claims (5)

1. A chemical heat storage device that heats a heat storage medium to separate the heat storage medium into a heat storage product and a production fluid during heat storage, and that generates the heat storage medium by reacting the heat storage product with a reaction fluid during heat dissipation, the chemical heat storage device comprising:
the heat storage medium;
a heat exchange portion through which a heat medium fluid passes to exchange heat between the heat storage medium and the heat medium fluid; and
a housing container that houses the thermal storage medium and the heat exchange portion,
a heat reflecting member is provided between the thermal storage medium and the housing container,
the heat reflecting member is disposed separately from the heat storage medium.
2. A chemical thermal storage device according to claim 1,
the 1 st heat reflecting member is provided separately from the inner wall of the housing container.
3. A chemical thermal storage device according to claim 1,
the 1 st heat reflection member has a 1 st ventilation portion.
4. A chemical thermal storage device according to any one of claims 1 to 3,
a 2 nd heat reflecting member is provided between the 1 st heat reflecting member and the storage container, and the 2 nd heat reflecting member is disposed apart from the 1 st heat reflecting member and the inner wall of the storage container.
5. A chemical thermal storage device according to claim 4,
the 2 nd heat reflection member includes a 2 nd ventilation portion, and the 2 nd ventilation portion is disposed so as not to overlap with the 1 st ventilation portion of the 1 st heat reflection member.
CN202110892407.XA 2017-03-24 2018-02-13 Chemical heat storage device Pending CN113503759A (en)

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