JP2018054148A - Chemical heat storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chemical heat storage device capable of preventing a crack in a heat storage material molding body.SOLUTION: A chemical heat storage device includes: a reaction vessel 11 having a reaction material molding body 14 in which a reaction material 13 is molded which generates heat by a chemical reaction with NHand in which NHis desorbed when heated, and a vessel 15 in which the reaction material molding body 14 is stored; and an adsorber for storing NH. In the vessel 15, a holding member 17 is arranged for holding the reaction material molding body 14 inside the vessel 15. The holding member 17 includes a tabular body part 18 and a hook piece 19 provided protrusively at the body part 18. The body part 18 comes into a surface contact with the reaction material molding body 14, and the hook piece 19 comes into contact with an inner wall surface of the vessel 15 by an elastic force. At the body part 18, an opening 20 is provided for constituting a flow passage in which NHflowing in a gap S between the vessel 15 and the body part 18 flows in the reaction material molding body 14.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a chemical heat storage device.

As a conventional chemical heat storage device, for example, a device described in Patent Document 1 is known. The chemical heat storage device described in Patent Document 1 includes an evaporation condenser in which water (H ₂ O) is evaporated and condensed, a reactor in which a hydration reaction or dehydration reaction of the heat storage material is performed, an evaporation condenser, and a reaction. And a water vapor channel that communicates with each other. The reactor includes a box having four side walls surrounding the heat storage material from four directions, and a reaction vessel disposed on the opposite side of the heat medium flow path to the box and through which water vapor flows from the water vapor flow path. ing.

JP 2014-181883 A

  However, the following problems exist in the prior art. That is, the heat storage material has a molded body structure (hereinafter referred to as a heat storage material molded body) molded as an aggregate of powders, for example. When water vapor is desorbed from the heat storage material during the dehydration reaction of the heat storage material, the heat storage material molded body contracts and a gap is formed between the heat storage material molded body and the box. When the gap is generated in this manner, the heat storage material molded body may hit the box and break due to vibration or the like.

  The objective of this invention is providing the chemical thermal storage apparatus which can prevent the crack of a thermal storage material molded object.

  One aspect of the present invention is a chemical heat storage device for heating an object to be heated, wherein a heat storage material molded body is formed by molding a heat storage material that generates heat due to a chemical reaction with the reaction medium and from which the reaction medium is detached when heat is applied. , A reactor having a container in which a heat storage material molded body is accommodated, a reservoir for storing the reaction medium, and a flow path through which the reaction medium flows between the container and the reservoir A holding member for holding the heat storage material molded body in the container is disposed inside the container, and the holding member is provided in a projecting manner on the plate-like main body part and the main body part. The main body part is in surface contact with the heat storage material molded body, the hook piece is in contact with the inner wall surface of the container by elastic force, and the main body part includes a container and a main body part. There is an opening that constitutes a flow path through which the reaction medium flowing through the gap flows into the heat storage material molded body. Vignetting wherein the are.

  In such a chemical heat storage device, when the reaction medium is supplied from the reservoir into the reactor container through the supply pipe, the heat storage material in the container and the reaction medium chemically react to generate heat from the heat storage material. Generated and the object to be heated is heated by the heat. When heat is applied to the heat storage material, the reaction medium is desorbed from the heat storage material, and the reaction medium is recovered from the reactor vessel through the supply pipe to the storage device. Here, when the reaction medium is detached from the heat storage material, the heat storage material molded body contracts, but a holding member for holding the heat storage material molded body in the container is disposed inside the container. At this time, the main body portion of the holding member is in surface contact with the heat storage material molded body, and the hook piece protruding from the main body portion is in contact with the inner wall surface of the container by elastic force. Therefore, even when the heat storage material molded body contracts, the hook piece is maintained in contact with the inner wall surface of the container, so that the heat storage material molded body remains held in the container by the holding member. Thereby, even if a clearance gap arises between a thermal storage material molded object and a container because a thermal storage material molded object contracts, it is prevented that a thermal storage material molded object is broken by vibration etc. Further, the reaction medium supplied from the supply pipe into the container flows through the gap between the container and the main body of the holding member, and flows into the heat storage material molded body from the opening provided in the main body. Therefore, the flow path through which the reaction medium flows toward the heat storage material molded body is secured in the container.

  The chemical heat storage device is disposed adjacent to the reactor, further includes a heat exchange unit that exchanges heat between the heat storage material and the heating target, and a holding member is disposed between the heat storage material molded body and the heat exchange unit. It does not have to be. In this case, since there is no flow path for the reaction medium between the heat storage material molded body and the heat exchange part, the heat exchange efficiency between the heat storage material and the object to be heated is improved.

  The number of holding members is at least two, and the two holding members are arranged on both sides of the container so as to sandwich the heat storage material molded body, and one end of the supply pipe is connected to the two holding members in the container. You may be connected to the part between. In this case, the heat storage material molded body is reliably held in the container by the two holding members. Thereby, even if a clearance gap arises between a thermal storage material molded object and a container because a thermal storage material molded object contracts, it is further prevented that a thermal storage material molded object is broken by vibration etc. In addition, since one end of the supply pipe is connected to a portion of the container between the two holding members, the reaction medium supplied into the container from the supply pipe goes around both sides of the container.

  The hook piece extends from the main body portion toward the opposite side of the direction in which the reaction medium flows through the gap between the container and the main body portion, and the opening portion is closer to the hook piece than the base end of the hook piece in the main body portion. You may provide in the area | region of the front end side. In this case, the reaction medium flowing through the gap between the container and the main body of the holding member reaches the opening while being guided by the hook piece. Therefore, the reaction medium can easily flow into the heat storage material molded body. In addition, for example, with the notch corresponding to the shape of the opening in the main body, the inner part of the notch is bent to one side with respect to the main body, so that the hook piece and the opening can be easily processed together. Can be formed.

  According to the present invention, it is possible to prevent cracking of the heat storage material molded body.

It is a schematic block diagram which shows the engine oil circulation system provided with the chemical heat storage apparatus which concerns on one Embodiment of this invention. It is a block diagram of the chemical heat storage apparatus containing sectional drawing of the reactor unit shown by FIG. It is the III-III sectional view taken on the line of FIG. FIG. 4 is a perspective view of the holding member shown in FIG. 3. It is sectional drawing which shows the operation state of the holding member shown by FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an engine oil circulation system including a chemical heat storage device according to an embodiment of the present invention. In FIG. 1, the engine oil circulation system 1 is provided in a vehicle on which an engine 2 is mounted.

  The engine oil circulation system 1 circulates engine oil for lubricating each part in the engine 2. The engine oil circulation system 1 includes an oil circulation passage 3 through which engine oil flows, and an oil pan 4 and an oil pump 5 disposed in the oil circulation passage 3. The oil pan 4 stores engine oil. The oil pump 5 sucks up the engine oil stored in the oil pan 4 and pumps it to the engine 2. The engine oil that has flowed through each part in the engine 2 returns to the oil pan 4.

  The engine oil circulation system 1 includes the chemical heat storage device 6 of the present embodiment. The chemical heat storage device 6 heats (warms up) the engine oil to be heated without requiring external energy such as electric power. The chemical heat storage device 6 normally stores heat, and heats the engine oil using the heat stored when necessary. The chemical heat storage device 6 includes a reactor unit 7, an adsorber 8, a supply pipe 9, and a valve 10. The reactor unit 7 is disposed in the oil circulation channel 3.

  FIG. 2 is a configuration diagram of the chemical heat storage device including a cross-sectional view of the reactor unit 7. 3 is a cross-sectional view taken along line III-III in FIG. 2 and 3, the reactor unit 7 includes a reactor 11 and a heat exchange unit 12 disposed adjacent to the reactor 11. The reactor unit 7 has a structure in which the reactor 11 and the two heat exchange units 12 are alternately stacked. A heat exchanging unit 12 is disposed at the upper and lower portions of the reactor unit 7. Note that the number of reactors 11 and heat exchange units 12 is not particularly limited, and may be plural or one.

  The reactor 11 includes a reaction material molded body 14 (heat storage material molded body) formed by molding a reaction material 13 that is a heat storage material, and a rectangular parallelepiped container 15 in which the reaction material molded body 14 is accommodated. Yes. The reaction material molded body 14 is obtained by compression molding the particulate or powdered reaction material 13.

When the reaction material 13 is supplied with ammonia gas (hereinafter referred to as NH ₃ ) as a reaction medium, the reaction material 13 generates heat due to a chemical reaction with NH _3, and when heat of the engine oil is applied, the heat of the engine oil causes NH ₃ is detached. As the reaction material 13, a halide represented by the composition formula MaXz is used. M is an alkali metal such as Li or Na, an alkaline earth metal such as Mg, Ca or Sr, a transition metal such as Cr, Mn, Fe, Co, Ni, Cu or Zn, Al, or a combination of these metals. One or more selected cations. X is one or more anions selected from fluoride ion, chloride ion, bromide ion, iodide ion, nitrate ion, thiocyanate ion, sulfate ion, molybdate ion or phosphate ion. X is, for example, Cl, Br, I or the like. a is the number of cations per salt molecule. z is the number of anions per salt molecule.

The container 15 includes a lower wall 15a, an upper wall 15b, and side walls 15c to 15f. The side walls 15c to 15f connect the lower wall 15a and the upper wall 15b. The side walls 15c and 15e face each other, and the side walls 15d and 15f face each other. In the central part of the side wall 15c, an inlet / outlet port 16 for allowing NH ₃ to enter and exit from the container 15 is provided. The side walls 15d and 15f are adjacent to the side wall 15c. A filter (not shown) may be disposed between the side wall 15 c and the reaction material molded body 14. The container 15 is formed of a metal material (for example, stainless steel) having corrosion resistance against NH ₃ .

  The heat exchange unit 12 is bonded to the upper surface and the lower surface of the container 15. The heat exchange part 12 has a rectangular parallelepiped shape. The heat exchanging unit 12 is connected to the oil circulation passage 3 so that engine oil flows. The heat exchange unit 12 exchanges heat between the reaction material 13 and the engine oil. The heat exchange unit 12 includes a plurality of heat exchange fins that promote heat exchange between the reaction material 13 and the engine oil. The heat exchange unit 12 is formed of the same metal material as the container 15, for example.

  Two holding members 17 for holding the reaction material molded body 14 in the container 15 are arranged inside the container 15. The holding member 17 is disposed between the side walls 15d and 15f of the container 15 facing each other and the reaction material molded body 14, respectively. That is, the two holding members 17 are arranged on both sides in the container 15 so as to sandwich the reaction material molded body 14. The holding member 17 is not disposed between the lower wall 15 a and the upper wall 15 b of the container 15 and the reaction material molded body 14. Therefore, the holding member 17 is not disposed between the heat exchange unit 12 and the reaction material molded body 14. Further, the holding member 17 is not disposed between the side walls 15 c and 15 e of the container 15 facing each other and the reaction material molded body 14.

  The holding member 17 is made of an elastically deformable material (for example, stainless steel). The holding member 17 has a thickness (for example, about 0.3 mm to 2.0 mm) that can be elastically deformed.

  As shown in FIGS. 4 and 5, the holding member 17 includes a flat plate-like main body portion 18 and a hook piece 19 protruding from the main body portion 18 so as to be integrated with the main body portion 18. ing. The hook piece 19 has a tongue piece structure. The number of the hook pieces 19 may be one or plural. The shape of the hook piece 19 is a curved mountain shape in plan view, but may be a triangular mountain shape in plan view or a rectangular mountain shape in plan view.

The main body 18 is in surface contact with the reaction material molded body 14. The hook piece 19 is in contact with the inner wall surfaces of the side walls 15d and 15f of the container 15 by elastic force. The holding member 17 holds the reaction material molded body 14 in the container 15 by the hook piece 19 being hooked on the inner wall surfaces of the side walls 15 d and 15 f. NH ₃ introduced into the container 15 from the supply pipe 9 (described later) flows through the gap S between the side walls 15 d and 15 f and the main body 18. The hook piece 19 extends from the main body 18 toward the side opposite to the direction in which NH ₃ flows (supply pipe 9 side) through the gap S between the side walls 15d, 15f and the main body 18. That is, the tip of the hook piece 19 is located on the supply pipe 9 side, and the base end of the hook piece 19 is located on the opposite side of the supply pipe 9 (see FIG. 2).

The main body 18 is provided with an opening 20 that forms a flow path through which NH ₃ flowing through the gap S between the side walls 15 d and 15 f and the main body 18 flows into the reaction material molded body 14. The opening 20 is provided in a region closer to the distal end side of the hook piece 19 than the base end of the hook piece 19 in the main body portion 18. As the location of the opening 20 is closer to the supply pipe 9, NH ₃ flowing through the gap S between the side walls 15 d, 15 f and the main body 18 flows faster into the reaction material molded body 14. The opening 20 is provided so as to avoid a corner of the reaction material molded body 14, for example. The opening 20 has a cross-sectional shape corresponding to the hook piece 19. The number of openings 20 may be one or a plurality, depending on the number of hooks 19.

  For example, the hook piece 19 is cut in a curved shape in the main body portion 18, and the inner portion of the cut is bent to one side with respect to the main body portion 18 with a line connecting both ends of the cut as a base line. It is formed.

Returning to FIG. 2, the adsorber 8 is a reservoir that stores NH ₃ . The adsorber 8 includes an adsorbent 21 that physically adsorbs NH ₃ during heat generation and desorbs NH ₃ during heat absorption. As the adsorbent 21, activated carbon, carbon black, mesoporous carbon, nanocarbon, zeolite, or the like is used. NH ₃ may be chemically adsorbed on the adsorbent 21.

The supply pipe 9 connects the container 15 and the adsorber 8. One end of the supply pipe 9 is connected to the side wall 15 c of the container 15. Specifically, one end of the supply pipe 9 is fixed to a portion of the entrance / exit 16 in the side wall 15c. Therefore, one end of the supply pipe 9 is connected between the two holding members 17 in the container 15. The supply pipe 9 constitutes a flow path in which NH ₃ flows bidirectionally between the container 15 and the adsorber 8. The supply pipe 9 is made of the same metal material as the container 15. The valve 10 is disposed in the supply pipe 9 and opens and closes the NH ₃ flow path.

In the chemical heat storage device 6 as described above, when the valve 10 is opened while the temperature of the engine oil is low, the adsorbent of the adsorber 8 is caused by the pressure difference between the adsorber 8 and the container 15 of the reactor 11. NH ₃ desorbed from 21 is supplied into the container 15 through the supply pipe 9. Then, the reaction material 13 in the container 15 and NH ₃ chemically react (chemical adsorption) to generate heat. That is, a reaction from the left side to the right side (exothermic reaction) in the following reaction formula (A) occurs.
Reactive material + NH ₃ ⇔ Reactive material (NH ₃ ) + Heat (A)

  Then, the heat generated from the reaction material 13 is transmitted to the engine oil flowing through the heat exchange section 12 through the lower wall 15a and the upper wall 15b of the container 15, and the engine oil is heated. The warmed engine oil flows through the oil circulation passage 3 and is sent into the engine 2.

Thereafter, when the temperature of the engine oil rises, the heat of the engine oil flowing through the heat exchanging section 12 is given to the reaction material 13 through the lower wall 15a and the upper wall 15b of the container 15, so that the NH ₃ is removed from the reaction material 13. Detach. That is, a reaction (regeneration reaction) from the right side to the left side in the above reaction formula (A) occurs.

Then, due to the pressure difference between the inside of the container 15 and the adsorber 8, NH ₃ returns to the adsorber 8 through the supply pipe 9 and is physically adsorbed by the adsorbent 21 of the adsorber 8. As a result, NH ₃ is recovered in the adsorber 8.

Here, before the reaction material 13 and NH ₃ chemically react with each other, as shown in FIG. 5A, the tip of the hooking piece 19 of the holding member 17 is moved to the side wall of the container 15 by the elastic force of the hooking piece 19. 15 d and 15 f are in contact with each other, and a gap S exists between the side walls 15 d and 15 f and the main body 18. In this state, when the NH ₃ is introduced into the container 15 through the supply pipe 9, the NH ₃ with flow into the portion facing the side wall 15c of the reaction material molded body 14, NH ₃ is the side wall 15d, 15f and the body NH ₃ flows into the gap S between the portions 18 and NH ₃ flows from the opening 20 into the portions of the reaction material molded body 14 facing the side walls 15d and 15f. At this time, the hook piece 19 functions as a guide for guiding the NH ₃ to the opening 20.

When the reaction material 13 and NH ₃ chemically react with each other, NH ₃ is occluded in the reaction material 13 as shown in FIG. 5B, so that the reaction material molded body 14 expands. Then, the holding member 17 is pushed by the reaction material molded body 14 against the elastic force of the hook piece 19 toward the inner wall surface of the container 15, and the gap S between the container 15 and the main body 18 is reduced. In some cases, the main body 18 finally comes into contact with the inner wall surface of the container 15, and the hook piece 19 is fitted into the opening 20.

On the other hand, when NH ₃ is desorbed from the reaction material 13, the reaction material molded body 14 contracts as shown in FIG. Then, the clearance S between the container 15 and the main body 18 increases following the contraction of the reaction material molded body 14, and the hook piece 19 is in contact with the inner wall surface of the container 15 due to the elastic force of the hook piece 19. Is maintained.

As described above, in the present embodiment, when NH ₃ is desorbed from the reaction material 13, the reaction material molded body 14 contracts, but the reaction material molded body 14 is held in the container 15 inside the container 15. A holding member 17 is disposed. At this time, the main body portion 18 of the holding member 17 is in surface contact with the reaction material molded body 14, and the hook piece 19 protruding from the main body portion 18 is in contact with the inner wall surface of the container 15 by elastic force. . Therefore, even if the reaction material molded body 14 contracts, the hook piece 19 is maintained in contact with the inner wall surface of the container 15, so that the reaction material molded body 14 remains held by the container 15 by the holding member 17. Become. Thereby, even if a gap S is generated between the reaction material molded body 14 and the container 15 due to the reaction material molded body 14 contracting, the reaction material molded body 14 is prevented from being broken by vibration or the like. As a result, it is possible to ensure the stability of the heat output during the exothermic reaction.

Further, NH ₃ supplied from the supply pipe 9 into the container 15 flows through a gap S between the container 15 and the main body 18 of the holding member 17, and forms a reaction material from an opening 20 provided in the main body 18. Flows into the body 14. Therefore, a flow path in which NH ₃ flows toward the reaction material molded body 14 in the container 15 is secured. Thereby, the heat output at the time of exothermic reaction can be raised.

In the present embodiment, since the holding member 17 is not disposed between the reaction material molded body 14 and the heat exchange unit 12, NH ₃ is not interposed between the reaction material molded body 14 and the heat exchange unit 12. There will be no flow path. Therefore, the heat exchange efficiency between the reaction material and the engine oil is improved.

Moreover, in this embodiment, the two holding members 17 are arrange | positioned at the both sides in the container 15 so that the reaction material molding 14 may be pinched | interposed. For this reason, the reaction material molded body 14 is reliably held in the container 15 by the two holding members 17. Thereby, even if a gap S is generated between the reaction material molded body 14 and the container 15 due to the shrinkage of the reaction material molded body 14, the reaction material molded body 14 is further prevented from cracking due to vibration or the like. Further, since one end of the supply pipe 9 is connected to a portion between the two holding members 17 in the container 15, NH ₃ supplied into the container 15 from the supply pipe 9 goes around to both sides in the container 15.

Further, in the present embodiment, the hook piece 19 extends from the main body 18 toward the opposite side to the direction in which NH ₃ flows through the gap S between the container 15 and the main body 18, and the opening 20 is The main body portion 18 is provided in a region closer to the distal end side of the hook piece 19 than the base end of the hook piece 19. For this reason, NH ₃ flowing through the gap S between the container 15 and the main body 18 reaches the opening 20 while being guided by the hook piece 19. Accordingly, NH ₃ is likely to flow into the reaction material molded body 14. In addition, with the notch corresponding to the shape of the opening 20 in the main body 18, the hook 19 and the opening 20 can be simplified by bending the inner part of the notch to the one side with respect to the main body 18. Can be formed together by processing.

  In addition, when a gap S is generated between the reaction material molded body 14 and the container 15, the corner portion of the reaction material molded body 14 is particularly easily broken due to vibration or the like. Therefore, by providing the opening 20 so as to avoid the corner portion of the reaction material molded body 14, it is difficult for fragments and the like due to cracking of the reaction material molded body 14 to flow out of the opening 20. It is suppressed that it enters and flows toward the adsorber 8.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, two holding members 17 are used, but the number of holding members 17 may be three or more or one. At this time, the holding member 17 may be disposed between the side wall 15c of the container 15 to which the supply pipe 9 is connected and the reaction material molded body 14.

In the above embodiment, the hooking piece 19 extends from the body portion 18 toward the opposite side (supply pipe 9 side) and the direction of flow is NH ₃ a gap S between the container 15 and the main body portion 18 However, the extending direction of the hooking piece 19 is not particularly limited thereto, and may be, for example, a direction crossing the direction in which NH ₃ flows in the gap S between the container 15 and the main body 18. When the holding member 17 has a plurality of hooking pieces 19, a hooking piece 19 extending from the main body 18 to the supply pipe 9 side and a hooking piece 19 extending from the main body 18 to the opposite side of the supply pipe 9 are provided. It may be mixed.

Moreover, in the said embodiment, although the opening part 20 is provided in the area | region of the front end side of the hook piece 19 rather than the base end of the hook piece 19 in the main-body part 18, especially as a position of the opening part 20, it is the form. It is not restricted to, It may be separated from the hook piece 19. Even in this case, even if a gap S is generated between the reaction material molded body 14 and the container 15, the reaction material molded body 14 is prevented from cracking due to vibration or the like, and the NH ₃ is molded into the reaction material in the container 15. A flow path that flows toward the body 14 is secured.

  Furthermore, although the reactor 11 has the rectangular parallelepiped container 15 in the said embodiment, as a shape of a container, it is not restricted to a rectangular parallelepiped shape in particular, A cylindrical shape etc. may be sufficient. When the shape of the container is a columnar shape, the shape of the main body portion of the holding member is a curved plate shape.

In the above embodiment, the reaction medium NH ₃ and the reaction material 13 represented by the composition formula MaXz are chemically reacted to generate heat. However, the reaction medium is not particularly limited to NH _3. CO ₂ or H ₂ O may be used. When CO ₂ is used as the reaction medium, the reactants to be chemically reacted with CO ₂ include MgO, CaO, BaO, Ca (OH) ₂ , Mg (OH) ₂ , Fe (OH) ₂ , and Fe (OH) _3. FeO, Fe ₂ O _3, Fe ₃ O ₄ or the like is used. When H ₂ O is used as the reaction medium, CaO, MnO, CuO, Al ₂ O ₃ or the like is used as a reaction material that chemically reacts with H ₂ O.

  Furthermore, in the above embodiment, heat exchange is performed between the reaction material 13 and the engine oil that is the heating target. However, the heating target is not particularly limited to the engine oil, and may be, for example, diff oil, exhaust gas, water, air, or the like. There may be.

  DESCRIPTION OF SYMBOLS 6 ... Chemical heat storage apparatus, 8 ... Adsorber (storage device), 9 ... Supply pipe, 11 ... Reactor, 12 ... Heat exchange part, 13 ... Reaction material (heat storage material), 14 ... Reaction material molding (Heat storage material molding) Body), 15 ... container, 17 ... holding member, 18 ... main body, 19 ... hook piece, 20 ... opening, S ... gap.

Claims (4)

In a chemical heat storage device that heats a heating target,
Reactor having a heat storage material molded body formed by molding a heat storage material that generates heat by chemical reaction with the reaction medium and from which the reaction medium is detached when heat is applied, and a container in which the heat storage material molded body is accommodated When,
A reservoir for storing the reaction medium;
A supply pipe that connects the container and the reservoir and constitutes a flow path through which the reaction medium flows between the container and the reservoir;
Inside the container, a holding member that holds the heat storage material molded body in the container is disposed,
The holding member has a plate-like main body portion and a hook piece projecting from the main body portion,
The main body is in surface contact with the heat storage material molding,
The hook piece is in contact with the inner wall surface of the container by elastic force,
The chemical heat storage device, wherein the main body portion is provided with an opening that constitutes a flow path through which the reaction medium flowing through a gap between the container and the main body portion flows into the heat storage material molded body. . A heat exchanging unit disposed adjacent to the reactor and exchanging heat between the heat storage material and the heating target;
The chemical heat storage device according to claim 1, wherein the holding member is not disposed between the heat storage material molded body and the heat exchange unit. The number of the holding members is at least two,
The two holding members are arranged on both sides in the container so as to sandwich the heat storage material molded body,
The chemical heat storage device according to claim 1 or 2, wherein one end of the supply pipe is connected to a portion of the container between the two holding members. The hooking piece extends from the main body part toward the opposite side of the direction in which the reaction medium flows through the gap between the container and the main body part,
The said opening part is provided in the area | region of the front end side of the said hook piece rather than the base end of the said hook piece in the said main-body part, The chemical heat storage apparatus as described in any one of Claims 1-3 characterized by the above-mentioned. .

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