JP2002013697A - Hydrogen storage tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase hydrogen storage amount per unit volume by increasing a hydrogen storage discharge area per a unit volume and to rapidly discharge hydrogen. SOLUTION: A hydrogen storage tank 1 comprises an outer cylinder body 2; and a cylindrical hydrogen storing module 4 is situated in the outer cylinder body 2 with a distance provided between the outer cylinder body 2 and the inner peripheral surface of the outer cylinder body 2. The hydrogen storage module 4 comprises a laminate 5, formed so that a plurality of hydrogen storage units 7 filled with a powder-form hydrogen storage material HSM and the whole of an outer peripheral surface forms a hydrogen storage discharge surface 6 are laminated with a heating-cooling body 8, located between the adjoining two units 7; first and second main passages 9 and 10, extending through the laminate 5 in a unit lamination direction and causing a flow of fluid for heating and fluid for cooling; and first and second auxiliary passages 11 and 12 branched from the main passages 9 and 10 and extending in the heating-cooling body 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage tank for storing and releasing hydrogen.

[0002]

2. Description of the Related Art Conventionally, as this type of hydrogen storage tank, for example, a double cylindrical tank is known. This tank contains a hydrogen storage alloy in the inner cylinder, and has a hydrogen passage around the axis of the hydrogen storage alloy, through which hydrogen for storage and release is circulated, and a passage for heating fluid and cooling fluid between the inner and outer cylinders. Things.

[0003]

However, since the conventional tank has a small hydrogen storage / release area per unit volume due to the narrow hydrogen passage, the hydrogen storage amount per unit volume is small and the heating efficiency is low. There was a problem that the release rate of hydrogen was slow because of the badness.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a hydrogen absorbing / desorbing area per unit volume which is increased to increase the hydrogen storage amount per unit volume and to release hydrogen rapidly. It is intended to provide a storage tank.

[0005] To achieve the above object, according to the present invention,
An outer cylinder, and at least one cylindrical hydrogen storage module housed in the outer cylinder with a space between the outer cylinder and a peripheral surface of the outer cylinder; A stacked body in which a plurality of hydrogen storage units filled with a hydrogen storage material and having at least a part of an outer peripheral surface thereof as a hydrogen storage / release surface are stacked with a heating / cooling body interposed between both adjacent units; At least one main passage for passing the heating fluid and the cooling fluid through the laminate in the unit lamination direction, and branching from the main passage to form each heating element;
A hydrogen storage tank having a sub-passage extending into the cooling body is provided.

[0006] With the above construction, the hydrogen storage / release surface is located on the outer peripheral surface of each hydrogen storage unit, and the hydrogen passage is surrounded therearound, so that the hydrogen storage / release area per unit volume is increased. It is possible to increase the hydrogen storage capacity per unit volume. Furthermore, each hydrogen storage unit can be efficiently cooled by each heating / cooling body having a large heat transfer area, thereby avoiding heat storage in the hydrogen storage material, improving the hydrogen storage efficiency and increasing the hydrogen storage amount. .

On the other hand, at the time of releasing hydrogen, the hydrogen storage material of each hydrogen storage unit can be efficiently heated by each heating / cooling body, and hydrogen can be released quickly from a wide hydrogen storage / release surface.

Further, the increase and decrease of the hydrogen storage unit makes it possible to easily increase and decrease the hydrogen storage amount of the tank. In addition, it is possible to improve the productivity of the tank and to simplify the structure.

[0009]

1 to 6 show a first embodiment of a hydrogen storage tank 1. The hydrogen storage tank 1 includes a pressure-resistant outer cylinder 2 made of stainless steel and having a circular cross section. At least one, in the present embodiment, one cylindrical hydrogen storage module housed in the outer cylinder 2 with an interval that becomes a hydrogen passage 3 between the outer peripheral wall 2a and the inner peripheral surface of the outer cylinder 2 4 is provided. The cylindrical hydrogen storage module 4 includes a laminate 5
The stacked body 5 is filled with a powdered hydrogen storage material HSM, and has a plurality of hydrogen storage units 7 having a hydrogen storage / release surface 6 with at least a part of the outer peripheral surface, in the embodiment, the entire outer peripheral surface.
Are stacked with a heating / cooling body 8 interposed between adjacent units 7. As the hydrogen storage material HSM, a hydrogen storage alloy (for example, an Mg alloy such as Mg ₂ Ni), nanostructured carbon, or the like is used. The heating / cooling body 8 is also provided on the upper surface side of the uppermost hydrogen storage unit 7 and the lower surface side of the lowermost hydrogen storage unit 7 as necessary.

The hydrogen storage module 4 has at least one through which the heating fluid and the cooling fluid flow through the laminated body 5 in the unit laminating direction. First and second branches from the main passages 9 and 10 and extending into the respective heating-cooling bodies 8.
It has sub passages 11 and 12.

The hydrogen storage unit 7 is provided with a stainless steel cylinder 14 having a large diameter through hole 13 around the axis, and the cylinder 14 is filled with a powdered hydrogen storage material HSM. The cylindrical body 14 is a hollow shaft 1 having a large-diameter through hole 13.
5, upper and lower end walls 16 and 17 integrally formed at both ends of the hollow shaft 15, respectively, and upper and lower end walls 16, 1
And a gas permeable filter 18 which is joined by welding or the like between the opposed outer peripheral portions 7 to form an outer peripheral wall. Filter 18
Has a large number of micropores through which hydrogen can enter and exit, for example, having a diameter of 0.1 to
It has holes of 10 μm.

As clearly shown in FIG. 3, the upper end wall 16 has an annular projection 19 extending upward at the outer peripheral edge thereof.
And a pair of small-diameter through-holes 20, 21 near the projection 19 and aligned with the large-diameter through-hole 13. The lower end wall 17 has an annular projecting portion 22 extending downward at the outer peripheral edge thereof and the upper end wall 1 near the projecting portion 22.
6 and a pair of small-diameter through holes 23 and 24 located coaxially with each other. A pair of small-diameter through holes 2 coaxially located on the upper and lower end walls 16 and 17
The first tube 25 for the first main passage made of stainless steel is inserted into 0 and 23, and the second tube 26 for the second main passage made of stainless steel is inserted into the other pair of small-diameter through holes 21 and 24, respectively. Then, these holes are joined by welding or the like.

The lower end surface of the first tubular body 25 matches the lower surface of the lower end wall 17, and the lower opening 27 is formed in a truncated conical shape with the large diameter end on the lower side. The upper end of the first tubular body 25 projects from the upper end wall 16, and the upper end 28 is located above the upper end surface of the annular projecting portion 19 and has a large-diameter end facing downward so as to match the lower opening 27. It has a trapezoidal shape. Further, four inflow holes 2 are provided on the upper side of the first pipe 25.
9 are formed, and the upper two opposing inflow holes 2 are formed.
9 is located slightly below the large-diameter end of the frustoconical upper end 28 and above the upper end surface of the annular projection 19, while the two opposing lower inflow holes 29 are located above the upper end wall 16. Are located slightly above and below the upper end surface of the annular projection 19.

The lower end surface of the second tubular body 26 coincides with the lower surface of the lower end wall 17, and the lower opening 30 is formed in a truncated conical shape with the large diameter end on the lower side. The upper end of the second tubular body 26 protrudes from the upper end wall 16, and the upper end 31 is located above the upper end surface of the annular projecting portion 19 and has a large-diameter end facing downward so as to match the lower opening 30. It has a trapezoidal shape. Further, four inflow holes 3 are formed in the upper side of the second pipe body 26.
2 are formed, and two inflow holes 3 facing each other on the upper side are formed.
2 is located slightly below the large diameter end of the frustoconical upper end 31 and above the upper end surface of the annular projection 19, while the two opposing inflow holes 32 on the lower side are located above the upper surface of the upper end wall 16. Are located slightly above and below the upper end surface of the annular projection 19.

In the laminate 5, two adjacent hydrogen storage units 7, that is, an annular protrusion 19 on the upper end wall 16 of the lower unit 7 and a lower end wall 17 of the upper unit 7 are formed.
The upper and lower end surfaces of the annular projecting portion 22 are joined to each other by welding or the like. Further, the frusto-conical upper end 28 of the first tube 25 in the lower unit 7 is fitted into the frusto-conical lower opening 27 of the first tube 25 in the upper unit 7, and a plurality of first tubes are repeatedly formed. The joining of the bodies 25 constitutes a series of first main passages 9 therein. The second tube 2 existing in the lower unit 7
6 is fitted into the frusto-conical lower opening 30 of the second tube 26 in the upper unit 7, and a plurality of the second tubes 26 are joined by repeating this process to form a series inside the two tubes. The second main passage 10 is formed. A large diameter pipe 33 made of stainless steel is fitted in a series of large diameter through holes 13 of each hydrogen storage unit 7.

Between the two adjacent hydrogen storage units 7, the upper and lower walls 16, 17 are shared as upper and lower walls, respectively.
Further, the butted annular projections 19 and 22 are attached to the outer peripheral wall 3.
4, and a part of the large-diameter pipe 33 is used as an inner peripheral wall 35.
A housing 36 for the heating-cooling body 8 is formed. In the annular space in the housing 36, a gas-permeable carrier 37 which has a disk shape and holds a catalyst is disposed at an intermediate portion in the upward and downward directions. The permeable carrier 37 is made of a porous metal body (for example, Ni porous body) having continuous pores, a porous ceramic body, or the like, and is fitted with the first and second pipes 25 and 26 and the large-diameter pipe 33. Two small diameter through holes 38 and 39
And a large-diameter through hole 40.
The inner surface of the housing 36 is divided into upper and lower parts by the gas permeable carrier 37. In the lower space, each inflow hole 2 on the lower side of the first and second pipes 25 and 26 is provided.
9, 32 communicate with each other, and the space below it is the first and second
It functions as a first sub-passage 11 that branches off from the main passages 9 and 10. On the other hand, the first and second pipes 25 and 26 are located in the upper space.
The upper inflow holes 29 and 32 communicate with each other, and the upper space functions as a second sub-passage 12 branched from the first and second main passages 9 and 10. First and second sub-passages 11, 12
Communicates with an outflow passage 42 in the large-diameter pipe 33 through two outflow holes 41 formed above and below the inner peripheral wall 35 which is a part of the large-diameter pipe 33.

As shown in FIGS. 2 and 3, in order to maintain the first sub-passage 11, between the permeable carrier 37 and the upper end wall 16, a plurality of metals, such as stainless steel, Ni, ceramics or the like are provided. A spacer is provided. That is, the upper end wall 16
An annular spacer 43 is provided around the outer periphery of the first tubular member 25, a pair of arc-shaped spacers 44 is provided around the first tubular body 25 so as not to close the openings of the two inflow holes 29, and a pair of arc-shaped spacers 44 are provided around the second tubular body 26. 32 so as not to close the opening 32.
5 and a pair of arc-shaped spacers 46 around the large-diameter pipe 33 so as not to close the openings of both outflow holes 41, and between the large-diameter pipe 33 and the first and second pipe bodies 25 and 26. A pair of arc-shaped spacers having a concave arc surface facing the large-diameter tube 33 so as to sandwich the large-diameter tube 33, and a central portion in the circumferential direction of the convex arc surface positioned near the first and second tubes 25 and 26, respectively. 47 are provided respectively.

These spacers 43 to 47 are provided in each of the inflow holes 2.
It also has a function as a guide member that allows the heating fluid and the cooling fluid that have flowed into the first sub-passage 11 from 9 and 32 to spread throughout the first sub-passage 11. That is, as shown by arrows in FIG. 3, the heating fluid and the like from the respective inlet holes 29 and 32 are guided between the annular spacer 43 and the arc-shaped spacer 47,
Next, the heating fluid or the like from one inflow hole 29 collides with the heating fluid or the like from the other inflow hole 32, and thereafter, the colliding heating fluid or the like flows from between the opposed ends of the two arc-shaped spacers 47. It is guided such that it is guided between the two arc-shaped spacers 46 and 47.

As shown in FIGS. 2 and 5, a plurality of spacers of the same type as described above are disposed between the permeable carrier 37 and the lower end wall 17 in order to maintain the second sub-passage 12. . That is, the annular spacer 48 is provided on the outer periphery of the permeable carrier 37,
A pair of arc-shaped spacers 50 are provided around the first tube 25 so as not to close the openings of both inflow holes 29, and a pair of arc-shaped spacers are provided around the second tube 26 so as not to close the openings of both the inflow holes 32. A pair of arc-shaped spacers 51 is provided around the large-diameter pipe 33 so as not to close the openings of the two outflow holes 41, and the large-diameter pipe 33 and the first and second pipes 2 are arranged around the large-diameter pipe 33.
The concave arc surface is directed toward the large-diameter tube 33 so as to sandwich the large-diameter tube 33 between the first and second tubes 25 and 26, and the circumferential central portions of the convex arc surfaces are positioned near the first and second tubes 25 and 26, respectively. The pair of arc-shaped spacers 52 are respectively provided.

Each of the spacers 48 to 52 is provided in each of the inflow holes 2.
It also has a function as a guide member for distributing the heating fluid and the cooling fluid that have flowed into the second sub-passage 12 from 9 and 32 to the entire second sub-passage 12. That is, as shown by the arrows in FIG. 5, the heating fluid and the like from each of the inflow holes 29 and 32 are guided between the annular spacer 48 and the arc-shaped spacer 52.
Next, the heating fluid or the like from one inflow hole 29 collides with the heating fluid or the like from the other inflow hole 32, and then the colliding heating fluid or the like flows from between the opposed ends of the two arc-shaped spacers 52. It is guided such that it is guided between the two arc-shaped spacers 51 and 52.

The heating fluid is a mixed gas of hydrogen and oxygen, and the mixed gas flows through the first and second main passages 9 and 10. The air-permeable carrier 37 of the heating / cooling body 8 carries platinum, palladium, or the like as a catalyst for promoting the combustion reaction between combustion hydrogen and oxygen on its surface and inside.

A cooling gas such as air is used as the cooling fluid. The cooling fluid is supplied to the first and second main passages 9 and 10, the first and second sub passages 11 and 12, and the discharge passage 4.
Distribute 2.

As clearly shown in FIG. 1, the upper end wall 53 of the outer cylinder 2 has first and second pipes 25 and 26 and a first pipe communicating with the upper ends of the large diameter pipe 33 and the upper part of the hydrogen passage 3. ~ 4th
The connection pipes 54 to 57 are held. On the other hand, the first and second pipes 25 and 26 and the large-diameter pipe 33 are provided on the lower end wall 58 of the outer cylinder 2.
The fifth to seventh connection pipes 59 to 61 communicating with the lower end of the first and second pipes are held.

Next, the storage and release of hydrogen in the hydrogen storage tank 1 will be described.

At the time of hydrogen storage, hydrogen is introduced from the fourth connection pipe 57 into the hydrogen passage 3 as shown in FIG. Hydrogen passes through the filter 18 in the entire circumference of the filter 18 of each hydrogen storage unit 7 and is stored in the powdery hydrogen storage material HSM.

The cooling air is supplied to the fifth and sixth connection pipes 59 and 6.
The air is supplied from the lower ends of the first and second main passages 9 and 10 through the main passages 9 and 10 and flows through the main passages 9 and 10. At this time, the cooling air is supplied to the frustoconical upper ends 2 of the first and second pipes 25 and 26.
As a result of the throttle action by the upper and lower portions 8 and 31, air traps are formed in the vicinity of the upper end portions 28 and 31 of the truncated cones. , 12 and the permeable carrier 37,
Next, it flows into the outflow channel 42 from each outflow hole 41 and circulates there.

In this case, since the entire outer peripheral surface of the cylindrical filter 18 is the hydrogen storage / release surface 6, the hydrogen storage / release area per unit volume is increased, thereby increasing the hydrogen storage amount per unit volume and hydrogen. The storage speed can be improved.

The powdery hydrogen storage material HSM of each hydrogen storage unit 7 is composed of a heating / cooling body having first and second main passages 9, 10 and an outflow passage 42 through which cooling air flows and a large heat transfer area. 8 efficiently cools, thereby avoiding heat storage in the powdered hydrogen storage material HSM.

At the time of releasing hydrogen, as shown in FIG. 6, a mixed gas is supplied to the first main passage 9 from the lower end thereof through a fifth connection pipe 59 so as to flow through the passage 9.
0, the mixed gas is supplied from the lower end side through the sixth connection pipe 60 to flow through the passage 10. At this time, the mixed gas is throttled by the frusto-conical upper end portion 28 of the first tube 25, so that a mixed gas pool is formed in the vicinity of the frusto-conical upper end portion 28, and the mixed gas from the mixed gas pool is supplied to each of the inlet holes 2.
9 and flows through the first and second sub-passages 11 and 12 and the permeable carrier 37. On the other hand, since the mixed gas is throttled by the frusto-conical upper end 31 of the second pipe 26, a mixed gas pool is formed near the frusto-conical upper end 31, and the mixed gas from the mixed gas pool flows through each inlet 32. First and second
It circulates through the sub passages 11 and 12 and the permeable carrier 37.

As a result, the first and second sub-passages 11, 12
The mixed gas burns in the presence of a platinum catalyst or the like in the inside and the permeable carrier 37 to generate combustion heat and heated steam,
The heated steam flows from the inside of the housing 36 to the outflow path 42 through the outflow holes 41.

The heat of combustion is transmitted to the powdered hydrogen storage material HSM via the heating / cooling body 8 having a large heat transfer area, and the heat of the heated steam is transmitted to the powdered hydrogen storage material HSM via the large diameter pipe 33. As a result, the hydrogen storage material HSM is efficiently heated, whereby hydrogen is released more quickly from the wider hydrogen storage / release surface 6.

As described above, when the space between the outer cylinder 2 and the hydrogen storage module 4 is defined as a hydrogen passage 3 and these two and 4 are kept in a non-contact state, the outer cylinder 2 during hydrogen occlusion and hydrogen release can be obtained. And the heat insulation between the hydrogen storage modules 4 can be enhanced. Also, the first and second main passages 9 and 10
Are formed by joining the two first hydrogen pipes 25 and the second pipes 26 to each other at the same time as the two adjacent hydrogen storage units 7 are stacked. Can be easily formed. Furthermore, the amount of expansion of each hydrogen storage unit 7 due to occlusion of hydrogen is substantially uniform, and since the outer cylinder 2 is separated from the hydrogen storage unit 7, the outer cylinder 2 expands as the units 7 expand.
There is no problem such as deformation. The carrier 3
7 does not have to have air permeability.

FIG. 7 shows a modification of the first embodiment. In this case, hydrogen and oxygen for combustion are used as the heating fluid,
Combustion hydrogen flows through the main passage 9, oxygen through the second main passage 10, and air in the embodiment. First tube 2
On the upper side of 5, two opposing inflow holes 29 are formed so as to be located slightly above the upper surface of the upper end wall 16 and below the upper end surface of the annular projection 19. Also the second
Two inflow holes 32 facing each other are formed on the upper side of the pipe body 26.
It is formed so as to be located slightly below the large-diameter end of the frustoconical upper end 31 and above the upper end surface of the annular projecting portion 19. The second auxiliary passage 12 communicates with an outflow pipe 42 in the large diameter pipe 33 through an outflow hole 41 formed in an inner peripheral wall 35 that is a part of the large diameter pipe 33.

At the time of hydrogen release, hydrogen for combustion is supplied to the first main passage 9 from the lower end thereof through the fifth connection pipe 59 to flow through the passage 9 and to the second main passage 10 at the lower end thereof. Is supplied as oxygen through the sixth connection pipe 60 to flow through the passage 10. At this time, the hydrogen for combustion is throttled by the frusto-conical upper end 28 of the first tube body 25, so that a hydrogen pool is generated in the vicinity of the frusto-conical upper end 28,
Combustion hydrogen from the hydrogen reservoir flows through the first sub-passage 11 through each inlet hole 29. On the other hand, the air is throttled by the frusto-conical upper end 31 of the second tube body 26, so that an air pocket is formed near the frusto-conical upper end 31 and air from the air pool passes through each inflow hole 32 to the second sub-portion. It flows through the passage 12.

As a result, the first and second sub-passages 11, 12
The combustion hydrogen and oxygen burn in the presence of a platinum catalyst or the like in the inside and the permeable carrier 37 to generate combustion heat and heated steam.
Distribute.

FIGS. 8 and 9 show a second embodiment of the hydrogen storage tank 1. FIG. In this example, in each hydrogen storage unit 7,
A plurality of fins 62 made of a material having good thermal conductivity such as copper and Ni are provided in the cylindrical body 14.
The fins 62 are joined to the hollow shaft 15 and the upper and lower end walls 16 and 17 by welding or the like. That is, each fin 62 is heated-
It contacts the cooling body 8.

The fins 62 are made of a powdery hydrogen storage material H.
It is embedded in the SM and not only contributes to cooling and heating of the hydrogen storage material HSM, but also reinforces the cylindrical body 14 and prevents uneven distribution of the powdered hydrogen storage material HSM. In this case, as in the example of FIG. 7, both the inflow and outflow holes 29 and 32 and the outflow hole 41 may be arranged, and hydrogen and oxygen (air) for combustion may be used as the heating fluid.

FIG. 10 shows a third embodiment of the hydrogen storage tank 1. In this example, a plurality of hydrogen storage modules 4 are arranged in the pressure-resistant outer cylinder 2 in a close-packed structure in order to increase the hydrogen storage capacity.

FIG. 11 shows a fourth embodiment of the hydrogen storage tank 1. In this example, the outer cylinder 2 and the hydrogen storage module 4
Are formed in a hexagonal cross section. Thus, the outer cylinder 2
In addition, the cross section of the hydrogen storage module 4 has a large degree of freedom, and there is no particular limitation.

In the third and fourth embodiments, the inflow holes 29 and 32 and the outflow hole 4 are arranged in the same manner as in the example of FIG. 7, and the first and second main passages 9 and 10 are heated respectively. It is also possible to distribute hydrogen and oxygen (air) as a working fluid. It is also possible to use a single main passage and allow the same mixed gas to flow therethrough.

[0041]

According to the present invention, with the above-described structure, the hydrogen storage amount per unit volume can be increased, the hydrogen storage efficiency can be improved, and the hydrogen storage amount of the entire apparatus can be easily increased and decreased. In addition, it is possible to provide a hydrogen storage tank capable of rapidly releasing hydrogen and having a simplified structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a hydrogen storage tank in which essential parts are broken.

FIG. 2 is a longitudinal sectional view of a main part of the first embodiment of the hydrogen storage tank.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 of FIG. 2;

FIG. 5 is a sectional view taken along line 5-5 in FIG. 2;

FIG. 6 is a longitudinal sectional view similar to FIG. 2, showing the flow of a mixed gas of hydrogen and oxygen, water vapor, and released hydrogen.

FIG. 7 is a longitudinal sectional view of a main part of a modification of the first embodiment, showing flows of hydrogen for combustion, oxygen, water vapor, and released hydrogen.

FIG. 8 is a longitudinal sectional view of a main part of a second embodiment of the hydrogen storage tank, and corresponds to FIG. 2;

FIG. 9 is a sectional view taken along line 9-9 of FIG. 8;

FIG. 10 is an explanatory view of a third embodiment of the hydrogen storage tank.

FIG. 11 is a cross-sectional view of a fourth embodiment of the hydrogen storage tank, corresponding to FIG.

[Explanation of symbols]

 1 ... hydrogen storage tank 2 ... outer cylinder 3 ... hydrogen passage 4 ... hydrogen storage module 5 ... laminate 6 ... … Hydrogen storage / release surface 7… hydrogen storage unit 8… heating-cooling body 9… first main passage 10… second main Passage 11 First sub-passage 12 Second sub-passage 37 Air-permeable carrier 42 Outflow passage 43-52 Guide member (spacer) 62 ……… fin HSM ………… Hydrogen storage material

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koya Hosoe 1-4-1 Chuo, Wako-shi, Saitama F-term in Honda R & D Co., Ltd. (Reference) 3E072 AA03 CA05 EA10 4G040 AA16 AA24 AA32

Claims (8)

[Claims] An outer cylinder (2) is accommodated in the outer cylinder (2) with an interval serving as a hydrogen passage (3) between the outer cylinder (2) and an inner peripheral surface of the outer cylinder (2). At least one cylindrical hydrogen storage module (4), wherein the cylindrical hydrogen storage module (4) is filled with a hydrogen storage material (HSM) and has at least a part of an outer peripheral surface thereof as a hydrogen storage / release surface (6). ), A stacked body (5) in which a plurality of hydrogen storage units (7) are stacked with a heating-cooling body (8) interposed between both adjacent units (7), and the stacked body (5). At least one main passage (9, 10) that penetrates the heating fluid and the cooling fluid through the unit stacking direction, and the main passage (9, 1);
A hydrogen storage tank characterized by having sub-passages (11, 12) branching from 0) and extending into each heating / cooling body (8). 2. A guide member (43 to 47; 48 to 5) for allowing the heating fluid and the cooling fluid to pass through the sub passages (11, 12) throughout the sub passages (11, 12).
2. The hydrogen storage tank according to claim 1, further comprising (2). 3. The hydrogen according to claim 2, wherein the heating fluid is hydrogen and oxygen for combustion, and the heating / cooling body (8) has a catalyst for promoting a combustion reaction between the hydrogen and oxygen for combustion. Storage tank. 4. The main passage has a first main passage through which hydrogen for combustion flows and a second main passage through which oxygen flows.
0), wherein the sub-passage is located on one side of the gas permeable carrier (37) holding the catalyst and communicates with the first main passage (9). A second sub-passage (12) on the other side communicating with the second main passage (10).
And the tubular hydrogen storage module (4) has an outflow passage (42) communicating with the second sub-passage (12).
The hydrogen storage tank according to claim 3. 5. Each hydrogen storage unit (7) has a plurality of fins (62) embedded in a powdered hydrogen storage material (HSM) and in contact with said heating / cooling body (8). 4. The hydrogen storage tank according to 4. 6. The hydrogen storage tank according to claim 2, wherein the heating fluid is a mixed gas of hydrogen and oxygen, and the heating / cooling body (8) has a catalyst for promoting a combustion reaction of the mixed gas. . 7. The main passage has a first main passage (9) through which the mixed gas flows and a second main passage (10), and the sub passage is a carrier (37) holding the catalyst. And a first sub-passage (11) communicating with the first and second main passages (9, 10) on one side of the first and second main passages (9, 10) on the other side. 10) communicating with the second sub-passage (1)
2), and the tubular hydrogen storage module (4) is connected to the outflow passage (4) communicating with the first and second sub-passages (12).
7. The hydrogen storage tank according to claim 6, comprising: (2). 8. Each hydrogen storage unit (7) has a plurality of fins (62) embedded in a powdered hydrogen storage material (HSM) and in contact with the heating / cooling body (8). 7. The hydrogen storage tank according to 7.