JP2000170998A - Hydrogen storage container - Google Patents

Abstract

(57) [Problem] To provide a lightweight hydrogen storage container capable of efficiently storing hydrogen. SOLUTION: A plurality of hydrogen storage alloy containers 1 and 2 each having a closed box shape are arranged with a gap 4 for a heat medium flow path, and a corrugated fin 5 is arranged in the gap 4. Top 5a
Are fixed to the outer walls of the hydrogen storage alloy containers 1 and 2, and the hydrogen storage and release paths 21 are connected to the respective hydrogen storage alloy containers 1 and 2 in a permeable manner. [Effect] The hydrogen storage alloy can be efficiently stored in the container, and the hydrogen can be released smoothly. The assembly of the container is easy, and the weight can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage container for temporarily storing hydrogen and extracting the hydrogen as needed.

[0002]

2. Description of the Related Art A fuel cell vehicle requires a means for efficiently storing hydrogen gas used as fuel, and a storage container using a hydrogen storage alloy is known as this means. As the storage container, as shown in FIG. 11, a powdery hydrogen storage alloy 50 is accommodated in a number of tubes 51, and a hydrogen transfer path 52 is provided in the tubes 51. After being assembled to the header 53 and welded to a tube sheet (not shown) or inserted through a plate fin (not shown), the tube is expanded and the like.

[0003]

However, in the conventional hydrogen storage container, there is a problem that the occupied area efficiency is low and hydrogen cannot be stored efficiently, and the work for assembling is troublesome. There is a problem that much work time and cost are required. On the other hand, a hydrogen storage container that is easily manufactured has been proposed in Japanese Patent Application Laid-Open No. 5-296398, and the like. There is a problem that the weight is increased. The present invention has been made in view of the above circumstances, and has a high exclusive area efficiency as a container for accommodating a hydrogen storage alloy, can efficiently store the hydrogen storage alloy, and can easily reduce the weight of the container itself. It is an object to provide a safe hydrogen storage container.

[0004]

Means for Solving the Problems To solve the above problems, a first aspect of the hydrogen storage container of the present invention is that a plurality of hydrogen storage alloy containers each having a closed box shape are used for a heat medium passage. The corrugated fins are arranged in the gap with each other, and a large number of crests of the corrugated fins are fixed to the outer walls of the hydrogen storage alloy container facing each other. A hydrogen discharge path is connected to the storage alloy container so as to allow ventilation. Second
In the hydrogen storage container according to the first aspect of the present invention, in the first aspect, the internal corrugated fins are arranged in the hydrogen storage alloy container, and a number of crests of the internal corrugated fins are fixed to the opposing inner walls of the container. It is characterized by being. In the third hydrogen storage container according to the first or second invention, a ventilation material is arranged between the waves of the internal corrugated fins in a wave width direction, and the ventilation material and the hydrogen discharge passage are permeable. It is characterized by being connected. A hydrogen storage container according to a fourth aspect is characterized in that, in the first to third aspects, a plurality of ventilation holes are provided in the internal corrugated fin at intervals in the wave width direction.

[0005] A hydrogen storage container according to a fifth aspect of the present invention comprises first to fourth hydrogen storage containers.
In the invention of the above, the end portions of the corrugated fin are covered so as to straddle a plurality of hydrogen storage alloy containers, respectively, at both ends in the wave width direction of the corrugated fins, and an inner space is provided between the hydrogen storage alloy container and the corrugated fins. A heat medium liquid jacket having a secured space is provided, and the heat medium liquid supply path and the heat medium liquid discharge path are connected to the heat medium liquid jacket. A hydrogen storage container according to a sixth aspect of the present invention is the hydrogen storage container according to the fifth aspect, wherein a partition for blocking communication between waves of corrugated fins adjacent to each other with the hydrogen storage alloy container interposed therebetween faces the internal space of the heat medium liquid jacket. The heat medium liquid supply path is provided in the internal space, which is provided alternately between the heat medium jackets and corresponds to one end of a heat medium liquid flow path defined by the internal space partitioned by the partition and the wave between the corrugated fins. The heat medium liquid discharge path is connected to the internal space corresponding to the other end of the heat medium liquid flow path.

[0006] The hydrogen storage container of the present invention has an arbitrary number of a plurality of hydrogen storage alloy containers, and the containers have a closed box shape. Although the shape is not particularly limited, a rectangular parallelepiped shape is desirable in order to efficiently store the hydrogen storage alloy and increase the occupation area efficiency of the hydrogen storage container. In this container, it is desirable to arrange the internal corrugated fins such that a number of crests are fixed to the inner walls of the container facing each other. The shape of this internal corrugated fin may be a curved surface or a flat plate, like the corrugated fin,
Any shape may be used as long as the wave shape is continuous at a predetermined pitch. By interposing the internal corrugated fins in the container as described above, heat transfer between the hydrogen storage alloys can be smoothed, and the strength of the container can be increased. It is possible to further reduce the thickness and weight. In addition, when the powdered hydrogen storage alloy is stored in the container, the hydrogen storage alloy is appropriately partitioned by the corrugated fins, and the hydrogen storage alloy is separated in the container by vibration or the like generated by movement in the automobile. It is possible to prevent the efficiency of hydrogen release from lowering due to the density of the hydrogen storage alloy.

The internal corrugated fins are desirably provided with a ventilation material extending between the wavefronts along the wave width direction, and connecting the ventilation material directly or indirectly to the hydrogen discharge path. Thus, even when the container is filled with the hydrogen storage alloy, ventilation is ensured along the wave width direction, and the movement of hydrogen at the time of occlusion at the time of releasing or replenishing hydrogen is quickly performed. The ventilation material is not particularly limited, as long as it is porous or a multi-gap material to ensure ventilation. In addition, if a part is shown as an example, a plate-shaped ventilation material in which air-permeable cloth material is stuck on one or both surfaces of a wire mesh can be shown. Further, when the hydrogen storage alloy powder is stored in the container, if the storage amount is adjusted so that a predetermined gap is formed in the space in the container, the gap acts as a hydrogen ventilation path. It is also possible to omit the above-mentioned ventilation material. In this case, if the container is installed so that the internal corrugated fins are horizontal, preferably horizontal, the gap can be obtained over the entire surface, and good air permeability can be secured.

Further, it is desirable to provide a plurality of ventilation holes at intervals in the wave width direction on each wavefront of the internal corrugated fin. Thereby, the air permeability is ensured even in the wave direction without being interrupted by each wavefront of the corrugated fin, and hydrogen is released and hydrogen is absorbed at the time of replenishment quickly. The shape of the ventilation hole itself is not particularly limited, and the ventilation hole can be formed in an appropriate shape such as a round hole shape, a square hole shape, or a slit shape. However, since it is not desirable that the hydrogen storage alloy moves through the ventilation holes from the viewpoint of the occurrence of coarse and dense, etc.,
It is desirable that the size of the ventilation hole is not so large, and optimally a slit shape is preferred.

The hydrogen storage alloy container usually has a storage port for storing the hydrogen storage alloy, but after storing the hydrogen storage alloy, it is necessary to close the storage port in order to eliminate leakage when releasing hydrogen. . For this reason, a lid for closing the storage port is prepared, and after a predetermined amount of the hydrogen storage alloy is stored in the storage container, the lid is arranged in the storage port to be in a sealed state. At this time, it is desirable that the peripheral portion of the storage port is formed of a flange, and this flange is
Formed integrally with the container or welded to the container in advance,
It is fixed by brazing or the like. Due to the presence of the flange, the lid can be easily joined to the storage port by welding or the like to close the storage port.

The hydrogen storage alloy containers are arranged with a gap therebetween in order to secure a heat medium flow path. At this time, in order to increase the contact area with the heat medium, it is desirable that the container wall surface forming the gap has as large an area as possible. For this purpose, it is effective to form the container into a flat box shape and select the flat surface as a wall surface forming a gap. The gap amount between the containers is determined in consideration of the flow path cross-sectional area as the heat medium flow path.

In the gap, corrugated fins are arranged such that a number of crests are fixed to the outer walls of the hydrogen storage alloy container facing each other. The shape of the corrugated fins and the pitch between the crests can be determined as appropriate. The shape of the corrugated fin may be a curved waveform or a flat waveform. In short, it is only necessary that the corrugated fin be continuous at a predetermined pitch.

The above-mentioned corrugated fin is fixed to the outer wall of the hydrogen storage alloy container facing the gap between the containers. Various methods can be adopted as the fixing method,
From the viewpoint of ease of assembling work, it is desirable that the corrugated fin is optimally formed of a brazing sheet and fixed by brazing. Thereby, the assembling work can be simplified, and the fixing can be surely performed without increasing the weight by the fixing means. These corrugated fins increase the heat transfer area between the heat medium and the hydrogen storage alloy container, thereby improving the heat exchange efficiency, and increase the strength of the storage container by connecting the containers reliably and firmly. Therefore, the thickness and weight of the container wall can be reduced, and a member for connecting the container is not particularly required, so that the weight of the entire hydrogen storage container can be reduced.

In the arrangement of the corrugated fins, in consideration of the use of the gap between the containers as a heat medium flow path, the wave medium fin has a wave width direction (a direction intersecting with the wave direction) in a direction in which the heat medium flows. It is desirable to arrange them so that Thereby, the heat medium flows smoothly along the wave width direction of the corrugated fins, and efficiently exchanges heat with the container. The heat medium used here may be air, hot water, or the like, and is not particularly limited as long as it is a fluid. Exhaust heat from a fuel cell, exhaust heat from a DC / DC converter, or the like can be used as appropriate as the generation source, and the present invention is not limited to the generation source.

As described above, since the corrugated fin is used as the heat medium flow path, the heat medium supply means for exchanging the heat medium between the waves of the corrugated fin and the heat medium are provided at the end portion in the wave width direction of the corrugated fin. Discharge means can be provided respectively. The configuration of the heating medium supply unit differs depending on the type of the heating medium.
When a gas such as air is used as the heat medium, a blowing fan is used, and an exhaust port or the like is provided as a discharging means. Also,
When a liquid heat medium such as water is used, a pump can be used as a feed side for a heat medium supply unit, or a suction side can be used for a heat medium discharge unit. The heat medium supply means and the heat medium discharge means can be provided with a heat medium moving path for moving the heat medium between the heat medium supply source and the wave between the corrugated fins. When a liquid is used as the heating medium,
On both ends of the wave width direction of the corrugated fin, so as to straddle a plurality of hydrogen storage alloy containers, cover the corrugated fin end,
In addition, it is desirable to provide a heat medium liquid jacket having an internal space secured between the hydrogen storage alloy container and the corrugated fin. The heat medium supply path and the heat medium liquid supply path and the discharge path which constitute a part of the heat medium supply means and the heat medium discharge means are connected to the heat medium liquid jacket as heat medium transfer paths.

The heat transfer fluid jacket may be provided with a partition in its internal space for blocking communication between the waves of the corrugated fins sandwiching the hydrogen storage alloy container. By providing the partitions alternately between the opposed heat medium jackets, one continuous heat medium liquid meandering in the hydrogen storage container due to the internal space partitioned by the partitions and the space between the corrugated fins. A flow path is configured. A heating medium liquid supply passage is communicated with a jacket internal space corresponding to one end of the flow path, and a heat medium liquid discharge path is communicated with the jacket internal space corresponding to the other end of the flow path. By supplying and discharging the heat medium liquid to and from the heat medium liquid flow path, the heat medium liquid is smoothly moved in the hydrogen storage container and is brought into efficient contact with the outer wall surface of the container and the corrugated fin between the containers. be able to. As a result, efficient heat exchange is performed between the heat medium liquid and the hydrogen storage alloy container, and in the hydrogen storage alloy container, the container and the internal hydrogen storage alloy are directly or through internal corrugated fins. Efficient heat exchange.

The hydrogen storage container assembled with the above-described members has a reinforcing effect due to the arrangement and fixation of the corrugated fins and the arrangement and fixation of the internal corrugated fins. Has been obtained, it is possible to use a light alloy made of aluminum or an aluminum alloy having a lower strength than stainless steel or a copper alloy as a material constituting each member, and further weight reduction is achieved. You. Further, since the hydrogen storage alloy can efficiently store the hydrogen storage alloy and efficiently exchange heat with the heat medium, a lightweight and efficient hydrogen storage container can be obtained. The hydrogen storage container can be used as a hydrogen storage tank of a fuel cell vehicle, a storage container of a hydrogen storage facility, or the like. The present invention is not particularly limited as long as it is used for temporarily storing hydrogen.

[0017]

(Embodiment 1) Next, an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 3, the hydrogen storage container is provided with flat rectangular parallelepiped box-shaped hydrogen storage alloy containers 1 and 2 made of aluminum alloy and having two kinds of sizes, and having a thickness on both sides. The small containers 1 and 1 are arranged so that the flat surface is vertical, and the containers 2 and 2 and 2 having a relatively large thickness are also arranged so that the flat surface is vertical. Gaps 4... 4 are secured between them. The gaps 4 are provided with corrugated fins 5... 5 each having a vertical wave traveling direction and a horizontal wave width extending along the container wall.
The corrugated fin 5 is composed of a brazing sheet in which a core material is made of an aluminum alloy, and a brazing material is clad on both surfaces of the core material. Also, at the upper and lower ends of the gap,
The partition plates 6 and 6 for closing the gap are arranged, thereby forming a flow path along the wave width direction of the corrugated fin 5 using the gap.

Further, through-holes 1a, 2a are formed in lower walls on one end side in the wave width direction of the containers 1, 2, and the through-holes 1a, 2a are formed in the containers 1, 2 on the lower side. Filters 8 and 9 that are permeable along the height direction and that prevent intrusion of a hydrogen storage alloy powder described later are arranged. Note that a fibrous heat insulating material or the like can be used as the filter. Also, inside the containers 1 and 2, there are arranged internal corrugated fins 11 and 12 whose wave traveling directions are vertical and whose wave width directions extend horizontally along the vertical walls on both sides of the containers 1 and 2. The internal corrugated fins 11 and 12 have a wave size that matches the distance between the vertical walls facing the opposite sides of the containers 1 and 2. The internal corrugated fins 11 and 12 are made of a brazing sheet in which a core material is made of an aluminum alloy, and a brazing material is clad on both surfaces of the core material.

Between the waves of the internal corrugated fins 11 and 12 (hereinafter referred to as "waves"), ventilation members 13 ... 13, 14 ... 14 are arranged at predetermined intervals along the wave width direction. I have. Here, as the ventilation materials 13 and 14, a material in which a highly permeable fabric material is stuck on both sides of a wire mesh is used. As shown in FIGS. 4 and 5, the internal corrugated fins 11 and 12 are formed with a plurality of ventilation holes 15... 15 and 16. In the embodiment, the ventilation holes 15 and 16 are formed in a slit shape. In addition, in the figure, the ventilation holes 15 and 16 are visible only on one wavefront of the internal corrugated fins 11 and 12, but the ventilation holes are similarly formed on each wavefront. Through the ventilation holes 15 and 16, continuous ventilation is ensured in the wave traveling direction.
Further, flanges 1b and 2b are formed longitudinally on the other end walls of the containers 1 and 2 in the wave width direction.
Housing ports 17 and 18 are formed along b and 2b.
The storage openings 17 and 18 have a lid 1 made of aluminum alloy.
9 and 20 are covered and sealed. Containers 1, 2
A hydrogen absorption / desorption tube 21 which constitutes a hydrogen absorption / desorption path so as to be bridged between the containers 1 and 2 is disposed below the storage container 1, 2. And has ventilation holes 21a and 22a corresponding to the ventilation holes 1a and 2a formed below the containers 1 and 2, respectively.

Next, the assembly of the hydrogen storage container will be described. Filters 8 and 9, internal corrugated fins 11 and 12, ventilation material 13 and
14 are arranged, the containers 1 and 2 are arranged, and the corrugated fins 5... 5 are arranged between the containers. These members are placed in a heating furnace, heated to a predetermined temperature, and each member is brazed by the brazing material clad on the corrugated fins 5, 11, 12. As a result, the crest 5 of the corrugated fin 5
a ... 5a are brazed to the outer walls of the facing containers 1 and 2,
Wave crests 11a... 11a, 12a of corrugated fins 11, 12
.. 12a are brazed to the inner walls of the containers 1 and 2 facing each other.

In the above assembly, partition plates 6... 6 are arranged at the upper and lower ends of the inter-container gap 4 and are welded to the containers 1 and 2 to form a heat medium flow path. Further, a hydrogen absorption / desorption tube 21 is arranged below the containers 1 and 2, and the hydrogen absorption / desorption tube 21 and the containers 1 and 2 are welded together with the ventilation holes 1 a and 2 a and the ventilation holes 21 a and 22 a together to form hydrogen. Secure suction and discharge path. By these operations, a hydrogen storage container is obtained. In the above-mentioned hydrogen storage container, the hydrogen storage alloy powder MH is stored and filled in the storage containers 1 and 2 from the storage openings 17 and 18 of the storage containers 1 and 2 after use. 19 and 20 are covered and welded. The type of the hydrogen storage alloy can be appropriately selected. In the initial stage, hydrogen is supplied from the hydrogen storage / release pipe 21 into the storage container at a high pressure, and hydrogen is stored in the hydrogen storage alloy MH stored in the storage devices 1 and 2. In the hydrogen storage container, since the corrugated fins 5, 11, and 12 for improving thermal efficiency also function as a reinforcing material, a lightweight storage container can be obtained, and work can be easily performed during assembly. .

The above-mentioned hydrogen storage container supplies an appropriate heat medium (air or the like) from a heat medium supply means (air blower or the like) (not shown) to flow from one end of the heat medium flow path. The heat medium comes out to the other end side while being in contact with the containers 1 and 2 and the corrugated fins 5, 11 and 12. The heat of the heat medium is transferred by this contact directly or from the corrugated fins 5, 11, 12 to the containers 1, 2 walls and the inside thereof, and further, inside the containers 1, 2,
Heat is transferred from the container wall or through the corrugated fins 11 and 12 to the hydrogen storage alloy MH. Hydrogen storage alloy MH
Then, the stored hydrogen is released by this heating.
Hydrogen passes through the vents 1a, 2a through the vents 13, 14 directly.
a, 21a, 22a to the hydrogen absorption / desorption tube 21 and, after moving through the ventilation holes 15, 16, the ventilation material 1
It moves to the hydrogen absorption / desorption tube 21 through 3, 14 and the vent. The hydrogen that has reached the hydrogen absorption / desorption tube 21 is used as a fuel cell or the like according to its purpose. In releasing the hydrogen, heat is efficiently transmitted to the hydrogen storage alloy, and the released hydrogen can be efficiently moved and extracted.

In the above-described embodiment, the ventilation is improved by arranging the ventilation members 13 and 14 between the waves of the internal corrugated fins. The air permeability can also be improved by adjusting the capacity of the storage alloy MH. That is, as shown in FIG.
2 is arranged so that the wave traveling direction is horizontal, and the amount of the hydrogen storage alloy MH to be accommodated is made smaller than the accommodation volume to secure a gap G in the container. It is possible to improve the air permeability by allowing air to flow along the air.

(Embodiment 2) Next, another embodiment will be described with reference to FIGS.
A description will be given based on FIG. In this embodiment, the description of the same structure as in the first embodiment will be omitted or simplified. The internal corrugated fins and the ventilation material are disposed inside, and the sealed hydrogen storage alloy containers 1 and 2 containing the hydrogen storage alloy (both not shown) are closed up and down via the corrugated fins 5 as in the above embodiment. Partition members 6... 6 are arranged at both ends in the wave direction of the corrugated fins 5. A hydrogen absorption / desorption tube 21 is disposed on one side where the partition members 6... 6 are disposed, and communicates with the containers 1 and 2.

Heat wave liquid jackets 33, 3 are provided at both ends of the wave-shaped fin 5 in the wave width direction (the direction orthogonal to the wave direction).
4 are arranged and fixed. These jackets 33,
Numeral 34 covers the end portions of all the corrugated fins 5 and has a shape along the outermost peripheral edge of the hydrogen storage alloy containers 1 and 2, and further includes the wall surfaces of the hydrogen storage alloy containers 1 and 2 and the corrugated fins. The tray 5 has a shallow bottom shape so that an internal space is secured between the tray 5 and the end of the tray 5. In addition, the inner surfaces of the jackets 33 and 34 are connected to each other via the hydrogen storage alloy container 2 so as to block communication between waves of the adjacent corrugated fins 5 and 5.
A partition ridge is formed as a partition between the two corrugated fins, and the jacket ridge is partitioned into a plurality of spaces by the partition ridge. Specifically, in the jacket 33, the partitioning ridge 33a is provided on the lower side, and the partitioning ridge 33b is provided on the upper side.
Is formed horizontally and the internal space is divided into three,
In the jacket 34, a horizontal partition ridge 34 is provided at an intermediate height position.
a is formed and the internal space is divided into two. As described above, the lowermost space of the jacket 33, the wave between the lowermost wave fins 5, the space below the jacket 34, the wave between the lower wave fins 5, the intermediate space of the jacket 33, the wave between the upper wave fins 5, the jacket One continuous heat medium liquid flow path is formed through the space above the space 34, between the waves of the uppermost wavy fin 5, and through the space above the jacket 33.
In the jacket 33, a heat medium liquid supply pipe 35 is connected from the outside as a heat medium liquid supply path to the lowermost space partitioned by the partition ribs 33a, and is connected to the uppermost space partitioned by the partition ribs 33b. A heat medium discharge pipe 36 is connected from the outside as a heat medium liquid discharge path. The heating medium liquid supply pipe 35 is connected to a heating medium liquid tank, a supply pump and the like (not shown), and the heating medium liquid discharge pipe 36 is connected to the heating medium liquid tank so that the heating medium liquid flows back.

In this embodiment, the heat exchange between the hydrogen storage alloy contained in the hydrogen storage alloy containers 1 and 2 is performed by the heat medium liquid supplied from the heat medium liquid supply pipe 35 into the jacket 33 (the heat medium liquid supplied to the jacket 33). In the embodiment, water is used. The water supplied from the heat medium supply pipe 35 is introduced into the lowermost space in the jacket 33. The water flowing into this space flows in a meandering manner in the hydrogen storage container through the above-described heat medium liquid flow path, and flows from the uppermost space of the jacket 33 to the heat medium liquid discharge pipe 3.
It is discharged outside through 6. As described above, the water as the heat medium is smoothly introduced into the hydrogen storage container by the jackets 33 and 34 and moved. Then, the water flowing in the hydrogen storage container surely comes into contact with all of the corrugated fins 5 and the hydrogen storage alloy containers 1 and 2, and efficient heat exchange is performed.
The above embodiments are merely examples of the present invention, and it goes without saying that the present invention is not limited to the above embodiments.

[0027]

As described above, according to the present invention, a plurality of hydrogen storage alloy containers each having a closed box shape are arranged with a gap therebetween for the heat medium flow path, and the gaps are formed in the gaps. Since the fins were arranged, and a number of crests of the corrugated fins were fixed to the outer walls of the respective hydrogen storage alloy containers facing each other, and further, the hydrogen storage and release passages were connected to the respective hydrogen storage alloy containers so as to allow ventilation. It is possible to obtain a storage container capable of efficiently storing the hydrogen storage alloy and efficiently releasing hydrogen, and has an effect that the storage container can be easily assembled and reduced in weight. Further, if the internal corrugated fins are arranged in the hydrogen storage alloy container and a number of crests of the internal corrugated fins are fixed to the opposing inner walls of the container, the heat exchange efficiency is improved and the hydrogen release is more efficient. As well as increasing the strength of the container,
Therefore, the thickness and weight of the further container can be reduced.

Further, a heating medium liquid jacket is provided at each end of the corrugated fin in the wave width direction, and the heating medium liquid supply path and the heating medium liquid discharge path are connected to the heating medium liquid jacket, so that the inside of the hydrogen storage container can be formed. Heat exchange can be easily performed by introducing a heat medium liquid. Further, in the internal space of the heat medium liquid jacket, by alternately providing partitions for blocking the communication between the waves of the corrugated fins between the opposing heat medium jackets, the heat medium liquid can be smoothly moved in the hydrogen storage container. As a result, it is possible to reliably contact the corrugated fin and the hydrogen storage alloy container, and the heat exchange efficiency is further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view, partially broken away, showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the same.

[FIG. 3] FIG. 3 is a front view in which a part is similarly cut away.

[FIG. 4] FIG. 4 is a plan view showing a part of the same.

FIG. 5 is a partial perspective view of the internal corrugated fin.

FIG. 6 is a partially enlarged cross-sectional view of the same side surface.

FIG. 7 is a partially enlarged view of a container similarly showing a modification.

FIG. 8 is a front view showing another embodiment of the present invention.

FIG. 9 is a side view of the same.

FIG. 10 is a perspective view of a heat medium liquid jacket.

FIG. 11 is a side view, a front view, and an enlarged view showing a conventional hydrogen storage container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hydrogen storage alloy container 1a vent 2 Hydrogen storage alloy container 2a vent 4 Gap 5 Corrugated fin 6 Partition plate 8 Filter 9 Filter 11 Internal corrugated fin 12 Internal corrugated fin 13 Vent material 14 Vent material 15 Vent hole 16 Vent hole 17 Housing Port 18 Housing Port 19 Lid 20 Lid 21 Hydrogen Absorbing and Desorbing Tube 21a Vent 22a Vent 33 Heat Medium Liquid Jacket 33a Partition Rib 33b Partition Rib 34 Heat Medium Liquid Jacket 34a Partition Rib 35 Heat Medium Liquid Supply Pipe 36 Heat medium liquid discharge pipe

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Harunobu Takeda 4 Chazu-cho, Muroran-shi, Hokkaido F-term in Japan Steel Works, Ltd. (reference) 3E072 AA10 DA05 DB03 EA10

Claims (6)

[Claims] 1. A plurality of hydrogen storage alloy containers each having a closed box shape are arranged with a gap therebetween for a heat medium flow path, and a corrugated fin is arranged in the gap. A plurality of crests are fixed to outer walls of the hydrogen storage alloy container facing each other, and a hydrogen discharge path is connected to each of the hydrogen storage alloy containers so as to be permeable to the hydrogen. 2. An internal corrugated fin is disposed in a hydrogen storage alloy container, and a number of crests of the internal corrugated fin are
2. The hydrogen storage container according to claim 1, wherein the hydrogen storage containers are fixed to the inner walls of the containers facing each other. 3. A ventilation material is arranged between the waves of the internal corrugated fins along a wave width direction, and the ventilation material and the hydrogen discharge path are connected to each other so as to be permeable. 3. The hydrogen storage container according to 1 or 2. 4. The hydrogen storage container according to claim 1, wherein a plurality of ventilation holes are provided at intervals in a wave width direction on each wavefront of the internal corrugated fin. 5. Each of the corrugated fins extends across a plurality of hydrogen-absorbing alloy containers on both ends in the wave width direction,
A heat medium liquid jacket that covers the end of the corrugated fin and has an internal space secured between the hydrogen storage alloy container and the corrugated fin is provided. The hydrogen storage container according to any one of claims 1 to 4, wherein the hydrogen storage container is connected to a medium discharge passage. 6. A partition for blocking communication between waves of corrugated fins adjacent to each other with a hydrogen storage alloy container interposed therebetween in the internal space of the heat medium liquid jacket is provided alternately between the heat medium jackets facing each other. The heat medium liquid supply passage communicates with the internal space corresponding to one end of the heat medium liquid flow path formed by the internal space partitioned by the partition and the wave between the corrugated fins, and the other heat medium liquid flow path 6. The hydrogen storage container according to claim 5, wherein the heat medium liquid discharge passage communicates with the internal space corresponding to an end.