JPH07112796A - Hydrogen feeding system, hydrogen storage station structure and vehicle to carry hydrogen - Google Patents

Abstract

PURPOSE:To transfer hidrogen safely by a large volume from a hydrogen storage station to a hydrogen feeding stand which feed hydrogen for a hydrogen automobile. CONSTITUTION:Hydrogen storage stations H1, H2 which store a large volume of hydrogen are constituted of, e.g. a hydrogen manufacturing plant H1 itself. In order to feed hydrogen to a hydrogen automobile which runs with hydrogen as a fuel, a large number of hydrogen feeding stands S1 are provided at various locations. A tank T is loaded on a truck B, and in the tank T, a hydrogen- occluded alloy is filled. At the hydrogen storage stations H1 or H2, the hydrogen-storing alloy in the tank T is put under a condition in which the hydrogen-storing alloy well stores hydrogen. The tank T, i.e., the hydrogen- storing alloy which well occludes hydrogen, is carried to the hydrogen feeding stand S1 by the truck B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen supply system, a hydrogen storage station structure, and a hydrogen carrier vehicle for supplying hydrogen to an automobile running on hydrogen as a fuel, that is, an automobile equipped with a hydrogen engine. Is.

[0002]

2. Description of the Related Art In recent automobiles, in order to prevent environmental pollution due to exhaust gas and to diversify fuel,
A vehicle running with hydrogen as a fuel, that is, a vehicle equipped with a hydrogen engine operated with hydrogen as a fuel has been proposed (see Japanese Patent Laid-Open No. 62-279264).

There are some problems to be solved in putting a hydrogen automobile into practical use, but the most important problem in terms of explosion proof is that the fuel tank is made of hydrogen storage alloy, that is, the engine. This is solved by storing the hydrogen supplied to the hydrogen storage alloy in the form of being stored in the hydrogen storage alloy.

[0004]

By the way, in order to widely disseminate hydrogen automobiles, a hydrogen supply system for supplying or replenishing hydrogen to hydrogen automobiles is required. As a part of this hydrogen supply system, It is necessary to install a lot of hydrogen stations, which are equivalent to gas stations, in various places.

As described above, when a large number of hydrogen supply stations are installed in various places, it is necessary to transfer hydrogen to each hydrogen supply station from, for example, a hydrogen production plant.
It is desirable to transfer hydrogen to the hydrogen supply station in a large amount and safely. As a method of satisfying such a demand, transfer by a pipeline can be considered.

However, while the pipeline transfer is advantageous in that it is carried out to a specific small number of locations, it is disadvantageous in terms of installation cost and the like when it is carried out to a large number of widely distributed locations. In particular, since the hydrogen supply stations may be installed anywhere on the road, it is difficult to transfer hydrogen to all the hydrogen supply stations by pipeline.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a hydrogen supply system capable of safely transferring a large amount of hydrogen to a large number of hydrogen supply stations. Another object of the present invention is to provide a hydrogen storage station structure and a hydrogen transportation vehicle suitable for use in this hydrogen supply system.

[0008]

In order to achieve the above object, the hydrogen supply system according to the present invention has the following configuration. That is, in a hydrogen storage station in which a large amount of hydrogen is stored, hydrogen is stored in a hydrogen storage alloy, and the hydrogen storage alloy in which the hydrogen is stored is transported by a vehicle, so that hydrogen is stored in the hydrogen storage station. The hydrogen is transported to a hydrogen supply station for supplying the hydrogen to a hydrogen automobile that runs on fuel. Preferred modes based on the above configuration are as described in claims 2 to 18 in the claims.

A hydrogen storage station structure suitable for use in the hydrogen supply system has the following structure. That is, a large amount of hydrogen is stored, and in a hydrogen storage station for supplying the stored hydrogen to another place, a carry-in station that receives a hydrogen storage alloy mounted on a vehicle, A storage station for storing hydrogen in the hydrogen storage alloy received in the carry-in station,
And a carry-out station for supplying a hydrogen storage alloy in which hydrogen is stored to the vehicle. A preferred mode based on the above configuration is as described in claims 20 to 30 in the claims.

A hydrogen carrying vehicle suitable for use in the hydrogen supply system has the following structure. That is, a hydrogen-carrying vehicle for carrying hydrogen has a structure in which a tank filled with a hydrogen-absorbing alloy is mounted on a loading platform of the vehicle. A preferred mode based on the above configuration is as described in claims 32 and below in the claims.

[0011]

According to the hydrogen supply system of the present invention, hydrogen is transferred from the hydrogen storage station to the hydrogen supply station while the hydrogen storage alloy is storing hydrogen. You can do it safely. Further, since the hydrogen storage alloy that has absorbed hydrogen is transferred by transporting the vehicle, it is possible to easily transfer the hydrogen to the hydrogen supply stations in various places which are not suitable for installing the pipeline.

With the structure as described in claim 2, it is preferable to prevent leakage of the hydrogen storage alloy during transportation and to minimize the chance of contact with air, that is, to prevent deterioration due to oxidation. Will be things.

With the structure as described in claim 3, it is possible to carry out the work of mounting the hydrogen storage alloy which has already been occluded in hydrogen on the vehicle in a short time, and to reduce the amount of hydrogen loaded on the vehicle. It can be easily grasped and performed in units of tank capacity. With the configuration described in claim 4 or 5, it is not necessary to unload a large and heavy tank from the vehicle.

With the structure as described in claim 6, the tank loading / unloading operation is easier than the loading / unloading of one large tank while obtaining the effect obtained in claim 3. Becomes With the configuration as described in claim 7, the small tank can be transported in a stable state by using the storage case.

With the structure as described in claim 8, since there is always a road at the place where the hydrogen supply station is installed, a truck running on this road can make the hydrogen supply station inconvenient. Even if it is installed at a place, hydrogen can be reliably transported to the hydrogen supply station.

[0016] With the structure as described in claim 9, it is preferable for more safe transportation of hydrogen. With the structure as described in claim 10, it is more preferable in terms of more safely transporting hydrogen and preventing the oxidation of the hydrogen storage alloy to prevent its deterioration. With the structure as described in claim 11, heat generation due to large movement of the hydrogen storage alloy is prevented, which is more preferable in terms of safety.

By adopting the structure as set forth in claim 12, even if some small tanks become abnormal, the other tanks are not affected and it is preferable for safety. With the structure as set forth in claim 13, the hydrogen storage alloy can be cooled for each small tank, so that the hydrogen storage alloy as a whole can be cooled as compared with the case of cooling one large tank at a time. Cooling as evenly and evenly as possible makes it more preferable for safety.

According to the structure described in claim 14, the hydrogen is directly transported from the place where the hydrogen is produced to the hydrogen supply station, which is preferable for improving the transportation efficiency. With the configuration as described in claim 15, a hydrogen storage station serving as a hydrogen supply base.
This is preferable for increasing the number of options and shortening the traveling distance of the vehicle.

According to the sixteenth aspect, hydrogen can be delivered to the hydrogen supply station in a short time, and the amount of delivered hydrogen can be confirmed in a unit of the number of tanks. It can be done easily.
Further, in the hydrogen supply station, hydrogen is stored by a method in which hydrogen is stored in the hydrogen storage alloy, which is preferable in terms of ensuring safety of the hydrogen supply station.

According to the seventeenth aspect of the invention, the hydrogen supply station can store the hydrogen in a manner in which the hydrogen storage alloy stores hydrogen, which is preferable for safety in the hydrogen supply station. Become. Claim 18
With the configuration as described in (1), hydrogen can be delivered to the hydrogen supply station in a gasified mode in which hydrogen is most easily used.

According to the hydrogen storage station structure described in claim 19, it is possible to provide a hydrogen storage alloy in which hydrogen is stored for a vehicle, and the hydrogen storage station according to claim 1 is provided. It is preferable for practical use of the hydrogen system.

With the structure as described in claim 20, it is possible to deal with the case where the hydrogen storage alloy is delivered from the vehicle for each tank to the hydrogen storage station. With the structure as set forth in claim 21, the hydrogen storage alloy is once taken out from the tank to store hydrogen, so that the hydrogen storage can be efficiently performed.

With the structure as described in claim 22, it is possible to deal with the case where only the hydrogen storage alloy is delivered from the vehicle.

[0024] The structure as set forth in claim 23 is preferable in avoiding the inefficient transportation of hydrogen due to the use of a deteriorated hydrogen storage alloy.
With the structure as set forth in claim 24, it is preferable in order to make the hydrogen storage alloy store hydrogen efficiently and to improve the hydrogen transport efficiency. With the structure as described in claim 25, it is possible to provide a specific structure for obtaining the effect of claim 24.

With the structure as described in claim 26, it is possible to prevent the vehicle from transporting the hydrogen storage alloy that has not sufficiently stored hydrogen, and to maintain high transport efficiency. It will be preferable from the above. With the structure as described in claim 27, in order to reuse the hydrogen storage alloy and prevent waste of resources,
It is also preferable in order to avoid the cost increase due to newly replenishing the hydrogen storage alloy. Claim 28
With the configuration as described in (1), the regenerated hydrogen storage alloy can be used as it is for hydrogen storage, and is preferable for effectively reusing the regenerated hydrogen storage alloy.

With the structure as described in claim 29, the hydrogen storage alloy can be regenerated as a continuous flow as a whole.

According to the hydrogen-carrying vehicle of the thirty-first aspect, it is possible to provide a vehicle for transporting the hydrogen-occlusion alloy to the hydrogen-feeding station, and the hydrogen-feeding system of the first aspect is provided. It is preferable for practical use.

[0028] With the structure as set forth in claim 32, it is preferable for more safely transporting the hydrogen storage alloy. With the structure as set forth in claim 33, the hydrogen storage alloy is stored in each tank for storing hydrogen.
It can be used when handing over to a service station or hydrogen station. With the structure as set forth in claim 34, it is preferable for stably transporting the tank.

With the structure as described in claim 35, it is possible to deal with the case where only the hydrogen storage alloy is delivered to the hydrogen storage station or the hydrogen supply station while the tank is left in the vehicle. Further, the hydrogen storage alloy in the tank can be replaced for regeneration or the like. With the structure as described in claim 36, it is possible to deal with the case where hydrogen is delivered to the hydrogen supply station in a hydrogen gas state.

With the configuration as described in claim 37, it is possible to deal with the case where hydrogen is received from the hydrogen storage station in the hydrogen gas state. Claim 3
The configuration as described in 8 is preferable for facilitating the movement of the tank at the time of loading / unloading the tank or after the loading / unloading of the tank.

The construction as described in claim 39 is preferable for securely fixing the tank to the vehicle. With the structure as set forth in claim 40, it is not necessary to separately prepare a device for unloading the tank, and it is possible to unload the tank at any time and at any place. The structure as set forth in claim 41 is preferable not only for safety but also for preventing the hydrogen storage alloy in the tank from being deteriorated by being oxidized.

By adopting the construction as described in claim 42, it is possible to prevent the adverse effect on the whole when an abnormality occurs in a part of the small tanks, which is preferable for safety. With the configuration as set forth in claim 43, it is preferable for cooling the hydrogen storage alloy as a whole as compared with the case where one large tank is cooled at once. Further, even if a part of the cooling device fails, the other small tanks cooled by the other cooling device are cooled as they are, which is preferable for safety as a whole. With the structure as described in claim 44, even if some of the cooling devices fail, all the small tanks are cooled by the other cooling devices that operate normally, which is extremely preferable for safety. Becomes

According to the forty-fifth aspect, even if a part of the cooling device fails, it is cooled by another cooling device that operates normally, which is extremely preferable for safety. . With the structure as set forth in claim 46, since it is a small tank, it can be easily loaded and unloaded, and the small tank can be transported in a stable state by being stored in the storage case. The configuration as set forth in claim 47 is preferable for improving the loading / unloading efficiency.

By adopting the structure as described in claim 48, it is possible to satisfy both easiness of loading and unloading of the tank and efficient loading and unloading of the tank at a high level. With the structure as set forth in claim 49, it is not necessary to separately prepare an unloading device, and the unloading of the tank can be appropriately performed anytime and anywhere.

With the structure as set forth in claim 50, it is preferable for cooling the hydrogen storage alloy as a whole as compared with the case where one large tank is cooled at once. With the structure as set forth in claim 51, heat generation due to a large movement of the hydrogen storage alloy in the tank is prevented, which is preferable for safely transporting the hydrogen storage alloy.

With the structure as set forth in claim 52, it is preferable for efficiently and sufficiently filling the hydrogen storage alloy into the tank and discharging the hydrogen storage alloy from the tank. Become. With the structure as set forth in claim 53,
This is preferable in efficiently supplying a cooling liquid to cool the hydrogen storage alloy in the tank and supplying a heating liquid to release hydrogen gas from the hydrogen storage alloy.

Embodiments of the present invention will be described below with reference to the accompanying drawings. Description of FIG. 1 In FIG. 1, H1 is a hydrogen production plant, H2 is a hydrogen storage station, and S1 and S2 are hydrogen supply stations. Similar to H2, the hydrogen production plant H1 constitutes a hydrogen storage station that stores a large amount of hydrogen, and may be referred to as a storage station in the following description. Hydrogen is supplied from the hydrogen production plant H1 to the storage station H2 using the pipeline 1. In addition, the hydrogen supply stations S1 and S2
Is for supplying hydrogen to a car A, which is installed in a large number in various places and is driven by hydrogen.
Hydrogen is supplied from the storage station H2 to the hydrogen supply station S1 using the pipeline 2. Hydrogen is supplied to the hydrogen supply station S2 from the hydrogen production plant H1 or the storage station H2 by using the truck B as a vehicle. The outer wall forming member of the tank T is configured by filling a heat insulating material between double steel plates, for example, and has sufficient strength and excellent heat insulating properties.

Description of FIGS . 2 and 3 FIGS . 2 and 3 show an example of the tank unloading type track B1 of the tracks B shown in FIG. The truck B1 has a tank T1 mounted on the platform thereof. The tank T1 is filled with a hydrogen storage alloy, and hydrogen is stored in the storage station H1 or H2 during hydrogen storage. The hydrogen storage alloy in which hydrogen has been stored is transported to the truck B1 and reaches the hydrogen supply station S2 while being filled in the tank T1.
The hydrogen in the tank T1 is delivered to the hydrogen supply stand S2.

The tank T1 has traveling wheels 11 so that it can be easily moved with a small force when it is unloaded from the truck B1. In order to mount the tank T1 on the tower, the bed of the truck B1 has a tank receiving surface 12 which is inclined so as to gradually lower toward the rear,
On this tank receiving surface 12, a large number of rollers 13 are arranged at intervals in the front-rear direction so that the tank T1 can be easily moved. The roller 13 is configured such that a portion of the lower surface of the tank T1 between the traveling wheels 11 is brought into contact. Further, the rear wall 14 of the truck B1 is openable and closable, and in the state where it is completely opened and shown by the alternate long and short dash line in FIG.

The truck B1 also has a lifting device 15 for loading and unloading the tank T1. This lifting device 15
Is constructed by using a winch, and a hook 15a attached to the tip of the winding wire is engaged with a hooking piece 16 provided in the tank T1. Tank T1 to truck B
1, the rear wall 14 is arranged as shown by the alternate long and short dash line in FIG.
Raise to 2. After pulling up the tank T1 to a predetermined position, the rear wall 14 is closed, and the rear wall 14 is closed by the lock mechanism 17.
To fix. As a result, the tank T1 is fixed to the bed of the truck B1. In this state, the hook 15a
Is still engaged in the tank T1 and should the rear wall 1
Even if 4 is opened, the tank T1 is prevented from falling. To remove the tank T1 from the truck B1, the procedure is reversed.

The truck T1 further has a cooling device 18. That is, the tank T1 is internally provided with heat transfer tubes made of a material having excellent heat transfer properties, each end of which is shown as the connection parts 19a and 19b exposed to the outside of the tank T1. The sufficiently cooled cooling liquid generated in the device 18 is supplied into the tank T1 from the pipe 18a and the connecting portion 19a to cool the hydrogen storage alloy, and the cooling liquid passing through the tank T1 is supplied from the connecting portion 19b to the pipe 18b.
And is returned to the cooling device 20 again. The pipe 18a,
18b is attachable to and detachable from the connecting portions 19a and 19b.

The tank T1 has a hermetically sealed structure, and a hydrogen storage alloy supply / discharge port 20 and a hydrogen gas supply / discharge port 21 are formed in the upper part of the tank T1.
It is hermetically sealed by a. The hydrogen supply (storage) to the hydrogen storage alloy in the tank T1 is performed by, for example, taking out the hydrogen storage alloy from the supply / discharge port 20 in the storage station H1 or H2 and then newly filling the hydrogen storage alloy with hydrogen storage. It can be done by doing. It is also possible to supply hydrogen gas from the supply / discharge port 21 into the tank T1 while leaving the hydrogen storage alloy in the tank T1. The hydrogen supply in the storage station H1 or H2 will be described in detail later.

The hydrogen supply from the hydrogen storage alloy in the tank T1 to the hydrogen supply station S2 may be carried out by delivering the hydrogen to the hydrogen supply station S2 for each tank T1. It can be delivered by delivering only the storage alloy or in the state of hydrogen gas. However, in the embodiment, in order to take advantage of the fact that the tank T1 is of a loading / unloading type, in the storage station H1 or H2, from the truck B1 to the tank T1.
And a tank T1 newly filled with a hydrogen storage alloy in which hydrogen has been fully stored is newly added to the truck B1.
Will be installed in. Also, for the hydrogen supply station S2,
From truck B1 to hydrogen every tank T1 (hydrogen storage alloy)
Is delivered.

Description of FIGS . 4 to 6 FIGS . 4 to 6 show a tank T with respect to the bed of the truck B2.
2 shows a case in which it is fixedly installed, and the constituents substantially the same as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted (this is the same in the following still further embodiments). In this embodiment, the tank T2 has an inlet 25 for hydrogen storage alloy at its upper portion and an outlet 26 for hydrogen storage alloy at its lower rear end, and both of them 25, 26 are respectively lid members 25a or 26.
It is hermetically sealed by a.

In the tank T2, a supply conveyor 27 is arranged at the upper part and a discharge conveyor 28 is arranged at the lower part, and both conveyors 27, 28 are constituted by a spiral conveyor. Each conveyor 2
The drive motors 27a and 28a of Nos. 7 and 28 are disposed outside the tank T2 from the viewpoint of explosion protection. Supply conveyor 2
Dispersion plates 29 having openings at appropriate intervals are arranged around the periphery of 7. A plurality of baffle plates 30 are arranged in the tank T2 at intervals in the front-rear direction, and the baffle plates 30 hold the heat transfer tubes 19. A net member 31 (not shown in FIG. 5) is provided in the tank T2 at each predetermined height position.

In the storage station H1 or H2, the hydrogen storage alloy, in which hydrogen is sufficiently stored, is supplied from the intake port 27 while the tank T2 is empty.
The hydrogen storage alloy supplied to the intake port 27 is widely dispersed in the front-rear direction by the supply conveyor 27, and by the action of the dispersion plate 29, the hydrogen storage alloy is widely dispersed horizontally in the tank T2 and dropped. During transportation by the truck B2, the hydrogen storage alloy is subjected to a cooling action by the cooling device 18, and the baffle plate 30 and the net member 31 which are movement preventing members prevent the hydrogen storage alloy from largely moving in the tank T2.

In the hydrogen supply station S2, the hydrogen storage alloy is discharged from the outlet 26, and the hydrogen is transferred to the hydrogen supply station S2 while the hydrogen storage alloy stores the hydrogen (this point will be described in detail later). To). At the time of discharging the hydrogen storage alloy, the discharge conveyor 28 is operated to sufficiently discharge the hydrogen storage alloy in the tank T2 in a short time.

In the example shown in the explanatory view of FIG . 7, a tank T3 filled with a hydrogen storage alloy is fixedly installed on the bed of a truck B3, and in a hydrogen gas state,
The case where the exchange of hydrogen between the storage stations H1 and H2 and the exchange of hydrogen at the hydrogen supply station S2 are performed is shown. Therefore, in the tank T3, a hydrogen inlet 35, a hydrogen outlet 36, a cooling liquid or heating liquid supply port 37, and a cooling liquid or heating liquid discharge port 3 are provided.
8 is formed. Of course, the supply port 37 and the discharge port 38 are connected by the heat transfer tubes arranged throughout the tank T3. Furthermore, the tank T3 has a hydrogen storage alloy supply / discharge port 39. The respective ports 35 to 39 are airtightly covered by the lid members 35a to 39a.

In order to supply hydrogen into the tank T3 in the storage stations H1 and H2, while supplying the cooling liquid from the supply port 37 (circulation state in which the cooling liquid is discharged from the discharge port 38), the hydrogen is supplied to the injection port 35. Connect the hydrogen gas supply pipe,
This is performed by injecting hydrogen gas into the tank T3. In the hydrogen supply stand S2, while supplying the heating liquid from the supply port 37 (circulation state in which the heating liquid is discharged from the discharge port 38), a hydrogen receiving pipe is connected to the discharge port 36 to supply hydrogen gas from the tank T3. It is performed by releasing.

Description of FIGS . 8 to 10 In the examples shown in FIGS . 8 to 10, the tanks are small tanks each filled with a hydrogen storage alloy and having a sufficiently small capacity.
A large number of small tanks T4 are mounted on a truck B4. Each of the small tanks T4 is used as it is as a fuel tank of a hydrogen automobile running with hydrogen as a fuel, and one to several small tanks T4 are used for one hydrogen automobile. In this case, the fuel tank (small tank T4) of the hydrogen vehicle is mounted on the vehicle body so as to be easily detachable. The exchange of hydrogen between the truck B4 and the storage stations H1 and H2 and the exchange of hydrogen between the truck B4 and the hydrogen supply station S2 are performed by exchanging each small tank T4.

Since a large number of small tanks T4 are mounted on the tower, a plurality of storage cases 41 are stacked and mounted on the truck B4. Each of the storage cases 41 can be loaded and unloaded from the truck B4. Therefore, the truck T4 is equipped with a crane-type lifting device 42 for loading and unloading the storage cases. Each storage case 41 has a plurality of storage portions 43 in which one small tank T4 is stored. A supply pipe 44a and a return pipe 44b which are connected to the cooling device 18 are provided at the bottom of each storage case 41, and the leading end thereof is a connection valve 45a or 45b. In addition, the pipe 44
The other ends of a and 44b are different from the side wall of the storage case 41.
Connection parts 46a, 46b are detachably connected to the pipes 18a, 18b extending from the cooling device 18.

On the other hand, a cooling liquid inlet 47a and an outlet 47b are formed on the bottom wall of the small tank T4. In the state where the small tank T4 is stored in the storage portion 43, the inlet 47a
Supply pipe 44a (cooling device 18
Connected to the supply pipe 18a) and the outlet 47b is connected to the connection valve 4
Return pipe 44b (return pipe 1 of cooling device 1
8b). The connection valves 45a and 45b are
It is normally closed, and when the small tank T4 is connected, it receives its weight and opens. And storage case 4
After storing a predetermined number of small tanks T4 in 1,
The cover 41 covers the cover 41 and the lock mechanism 49.
The lid-covered state is held by.

Here, the truck B4 has a plurality of cooling devices 18, and each cooling device 18 shares and cools only a predetermined number of storage cases 41 (the small tanks T4 therein). As such, they are individual.

Description of FIGS . 11 and 12 FIGS . 11 and 12 show the tank T (T
1 to T3) are independent of each other (3 in the embodiment).
It is divided into individual tanks T11 to T13. The truck B5 has tanks T11 to T13.
The cooling devices 18A to 18C are provided, each cooling device 18A for cooling the tank T1, the cooling device 18B for cooling the tank T12, and the cooling device 18C.
Is for cooling the tank T13.

When any one of the cooling devices 18A to 18C fails, another normally operating cooling device provides a backup means for cooling the tank corresponding to the failed cooling device. Therefore, each cooling device 18A
To the supply pipes 18a extending from 18C to the connection path 51.
And the return pipes 18b are connected to each other by the connection path 52. The on-off valves 53, 54 or 55, 56 are connected to the connection paths 51, 52.

Normally, the on-off valves 53 to 56 are closed. Now, assuming that the cooling device 18A fails, for example, the on-off valves 54 and 55 are opened, and the cooling device 1B that is cooling the tank T12 has failed.
The tank T11 corresponding to 8A is also cooled. in this case,
All of the normally operating cooling devices may be used to cool the tank T11 corresponding to the failed cooling device. In this case, all the open / close valves 53 to 56 may be opened.

Description of FIG . 13 FIG . 13 shows a processing facility for storing hydrogen in the storage station H1 or H2, and corresponds to the case where the tank T1 as shown in FIGS. 2 and 3 is carried in. It is supposed to do. First, in the order of processing, carry-in station 61, discharge station 62, and storage station 6
3, an inspection station 64, and an ejection station 65.

First, in the carry-in station 61, the tank T1 filled with the hydrogen storage alloy is carried in from the truck B1. The tank T1 carried into the carry-in station 61 is one after hydrogen is delivered to the hydrogen supply station S2, and therefore the stored hydrogen amount is zero or almost zero. In the discharge station 62, the hydrogen remaining in the tank T1 is completely discharged. At the time of this hydrogen discharge, the hydrogen storage alloy in the tank T1 is heated by warm water as a heating liquid.

In the occlusion station 63, hydrogen is sufficiently occluded in the hydrogen occluding alloy in the tank T1. During this hydrogen storage, hydrogen gas is supplied into the tank T1 while the hydrogen storage alloy in the tank T1 is being cooled by cold water as a cooling liquid. In order to prevent oxidation of the hydrogen storage alloy during hydrogen storage, the storage station 63 has a non-oxidizing atmosphere. To create this non-oxidizing atmosphere, the occlusion station 63 may be placed in a vacuum state or an inert gas atmosphere such as argon, helium, or nitrogen may be used, and nitrogen (nitrogen gas) is used in terms of cost. Is preferred.

In the inspection station 64, it is inspected whether or not hydrogen is sufficiently stored in the tank T1. This inspection can be performed, for example, by weighing the total weight including the tank T1 and checking whether or not the weighing result is within a predetermined weight range. The hydrogen storage alloy in which hydrogen is sufficiently stored is transferred to the carry-out station 65, and when the hydrogen storage is insufficient, the hydrogen storage alloy is returned to the storage station 63 again. In the carry-out station 65, the tank T1 in which hydrogen has been sufficiently stored in the hydrogen storage alloy is mounted on the truck B1.

In the carry-in station 61 or the discharge station 62, the hydrogen storage alloy is once taken out from the tank T1, and then hydrogen is stored therein to store the hydrogen.
It is also possible to fill the hydrogen storage alloy into the tank T1 again after passing through the section 63.

Description of FIG . 14 FIG . 14 shows a processing facility for hydrogen storage in the storage station H1 or H2, in which only the hydrogen storage alloy is carried in from the tank T2 as shown in FIGS. It corresponds to the case. First, in the order of processing, a loading station 71, an inspection station 72, an oxide film removal station 73, and a hydrogen storage station 7 are provided.
4. It has an inspection station 75 and a carry-out station 76. Further, a regeneration station 77 for the hydrogen storage alloy is provided in parallel with the processing lines of the stations 71 to 76. And each station 71-
77 is a non-oxidizing atmosphere, that is, a vacuum or an inert gas atmosphere.

In the carry-in station 71, the truck B2
The hydrogen storage alloy is carried in from the tank T2 mounted in the column via the pipe 78. During this loading, it is preferable to prevent the oxidation of the hydrogen storage alloy as much as possible by supplying an inert gas to the tank T2. In the inspection station 72,
It is inspected whether or not the hydrogen storage alloy is deteriorated, and if the hydrogen storage alloy is not deteriorated, the oxide film removing station 7
The hydrogen storage alloy, which has been transferred to No. 3 and has deteriorated, is recycled.
Sent to Option 77.

In the oxide film removal station 73, the oxide film formed on the surface of the hydrogen storage alloy is removed by using a reducing agent or by stirring.
In the storage station 74, hydrogen is sufficiently stored in the hydrogen storage alloy in the same manner as the storage station 63 described with reference to FIG. In the inspection station 75, it is inspected whether hydrogen is sufficiently stored. The hydrogen storage alloy in which hydrogen is sufficiently stored is transferred to the carry-out station 76,
If the hydrogen storage is insufficient, the storage station 74
Returned to.

In the carry-out station 76, the hydrogen storage alloy in which hydrogen is sufficiently stored is filled in the bucket 79 and lifted to a high position, and is transferred to the bucket 80a of the tilting device 80 provided at this high position. . And
By inclining the bucket 80a, the supply pipe 81
The hydrogen storage alloy is supplied to the tank T2 mounted on the truck B2 via the tank.

In the regeneration station 77, the deteriorated hydrogen storage alloy is once melted and then crushed into a fine powder to be regenerated. The regenerated hydrogen storage alloy is transferred to the storage station 74.

Description of FIG . 15 FIG . 15 shows an example of the hydrogen supply station S2.
An example in which only the hydrogen storage alloy is delivered from the tank T mounted on the truck B to the hydrogen supply station S2 will be described. In FIG. 15, a hydrogen gas supply pipe 86 is extended substantially horizontally at a high position of a stop space 85 where a hydrogen automobile is stopped, and a plurality of flow meters connected to the supply pipe 86 are provided. From 87, a hydrogen supply nozzle 89 is suspended via a hydrogen supply hose 88.

A high-strength roof 90 is formed at a high position of the parking space 85, and a tank 91 is arranged on the roof 90 in an inclined state. This tank 91
Is filled with a hydrogen storage alloy, and a large amount of hydrogen is stored in a state where the hydrogen storage alloy stores hydrogen. This tank 91 is provided with a hydrogen storage alloy intake port 91a that is opened upward on the upper surface of the end portion on the high position side, and is opened downward on the end portion on the lower side of the tank 91. The hydrogen storage alloy outlet 91b is formed. Each of the ports 91a and 91b is always covered with a lid member.

A running path 92 is formed on the tank 91, and the intake port 91a can be opened to the running path 92. Further, a hydrogen gas storage tank 93 is arranged beside the traveling path 92. This tank 93
The hydrogen gas released from the hydrogen storage alloy in the tank 91 is temporarily stored via the pipe 94. The supply pipe 86 is connected to the tank 94 storing the hydrogen gas. ing. In order to release the hydrogen gas from the hydrogen storage alloy in the tank 91, the heat transfer tubes 95 are arranged all over the tank 91 and heated by the heating liquid supplied from the outside of the tank 91. ing.

The pressure in the hydrogen gas storage tank 93, that is, the amount of stored hydrogen is set to a relatively small capacity such that hydrogen gas can be supplied at once for several hydrogen automobiles. Further, it is preferable to control the heating of the hydrogen storage alloy in the tank 91 so that the pressure in the tank 94 falls within a predetermined range. Further, a spiral conveyor 96 is disposed in the tank 91, and its driving motor is designated by reference numeral 96.
It is indicated by a.

In the above structure, when the amount of hydrogen stored in the hydrogen storage alloy in the tank 91 decreases,
A truck (not shown) comes under the outlet 91b,
The hydrogen storage alloy in the tank 91 is discharged to (the tank mounted on) the truck. At the time of this discharge, the conveyor 96 is operated, the hydrogen storage alloy in the tank 91 is transferred to the outlet 91b, and the hydrogen storage alloy is sufficiently discharged from the tank 91.

After discharging the hydrogen storage alloy, the tank T2 of the truck B2 parked on the traveling path 92 is connected to the intake port 91a of the tank 91. The tank T2 of the truck B2 is filled with a hydrogen storage alloy in which hydrogen is stored sufficiently. Then, the hydrogen storage alloy is transferred from the tank T2 to the tank 91, the conveyor 96 is operated at this time, and the tank 91 is sufficiently filled with the hydrogen storage alloy.

One truck B2 is connected to the tank 91.
A receiving tank (an empty state at the time of reaching the hydrogen supply station S2) for receiving the hydrogen storage alloy in which hydrogen is reduced, and a tank (T2) filled with the hydrogen storage alloy in which hydrogen is sufficiently stored. It is also possible to configure both as a column-mounted type. In this case, recovery of the hydrogen storage alloy in the tank 91 and supply of the hydrogen storage alloy in which hydrogen is sufficiently stored to the tank 91 are performed by one unit. The track B2 can be used in common.

Although the embodiment has been described above, the present invention is not limited to this, and includes the following cases, for example. (1) The vehicle is not limited to a truck, but may be a railway vehicle. For example, storage station H1 or H
Introducing a railway (rail) service line up to 2 and transporting hydrogen (hydrogen storage alloy) to a predetermined distant area by a railroad vehicle, and then transferring it to a truck to transfer to a predetermined hydrogen supply station S
Hydrogen (hydrogen storage alloy) may be transported up to 2. In this case, at least the outer shape can be configured as a container having a standard shape (standard dimension) so that the tank storing the hydrogen storage alloy can be easily mounted on both a railroad car and a truck. (2) Delivery of hydrogen from the truck B to the hydrogen supply station S2 may be performed for each tank T mounted on the tower. In this case, the delivered tank T functions as the tank 91 in FIG. Become. Further, hydrogen gas may be released from the hydrogen storage alloy in the tank T mounted on the truck B and delivered to the hydrogen supply station S2 in the hydrogen gas state. In this case, a heating liquid supply device for heating the tank T may be provided on at least one of the hydrogen supply stand S2 and the truck B. (3) As the hydrogen storage alloy in the tank T (T1 to T3), it is preferable to use a good quality hydrogen storage alloy having a large hydrogen storage capacity even though it is disadvantageous in terms of cost. Alloys can be used. In other words, it is preferable that the hydrogen storage alloy for one truck can supply hydrogen to about 50 to 100 hydrogen vehicles. (4) Cooling of the transported hydrogen storage alloy during hydrogen storage can be performed at an extremely low temperature of, for example, tens of degrees C or less, and a heating liquid for releasing hydrogen from the transported hydrogen storage alloy. It is preferable to make the temperature of the extremely high temperature of, for example, 250 ° C. or higher, and to use the above-mentioned high-quality hydrogen storage alloy to shorten the time of hydrogen storage and release as much as possible. On the other hand, it can be about 15 minutes to store or release hydrogen.

[Brief description of drawings]

FIG. 1 is an overall system diagram showing an embodiment of the present invention.

FIG. 2 is a side view showing an example in which a tank can be freely loaded and unloaded on a truck.

FIG. 3 is a sectional view corresponding to line X3-X3 in FIG.

FIG. 4 is a side view showing an example in which the tank is fixed to a truck.

5 is a side sectional view of the tank shown in FIG.

6 is a sectional view corresponding to line X6-X6 in FIG.

FIG. 7 is a side view showing an example of a truck on which a tank for taking out hydrogen in a hydrogen gas state is mounted.

FIG. 8 is a side view showing an example in which a small tank is stored and transported in a storage case mounted on a truck.

FIG. 9 is a perspective view showing a storage relationship between a storage case and a small tank.

FIG. 10 is a side sectional view showing a state in which a plurality of small tanks are stored in the storage case.

FIG. 11 is a side view showing an example of a truck having a plurality of tanks and a plurality of cooling devices.

12 is a view showing a preferable connection relationship between the plurality of tanks and the plurality of cooling devices shown in FIG.

FIG. 13 is a system diagram of a hydrogen storage processing device equipped in a hydrogen storage station.

FIG. 14 is a system diagram of a hydrogen storage processing apparatus equipped in a hydrogen storage station.

FIG. 15 is a partial side sectional view showing an example of a hydrogen supply stand.

[Explanation of Codes] H1: Hydrogen production plant (hydrogen storage station) H2: Hydrogen storage station B, B1 to B4: Trucks T, T1 to T3: Tanks T4: Small tanks S1 and S2: Hydrogen supply station 1 2: Pipeline 15: Lifting device (loading / unloading device) 17: Lock mechanism 18: Cooling device 18A to 18C: Cooling device 30: Baffle plate (movement preventing member) 31: Net member (moving preventing member) 41: Storage case 42: Unloading device 43: Storage section 51, 52: Piping (for backup) 53-56: Open / close valve (for backup) 61: Carry-on station 62: Hydrogen discharge station 63: Hydrogen storage station -Section 64: Inspection station 65: Carry-out station 71: Carry-in station 72: Inspection station 73: Oxide film removal station 74 Hydrogen storage stearyl - Deployment 75: inspection stearyl - Deployment 76: unloading stearyl - Deployment 77: Play stearyl - Deployment 91: Tank (hydrogen storage alloy) 93: Tank (hydrogen gas)

Front page continuation (72) Inventor Toshinori Toshinori No. 3 Shinchi Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd. (72) Inventor Shigefumi Hirabayashi No. 3 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Mazda Co., Ltd.

Claims (53)

[Claims] 1. In a hydrogen storage station in which a large amount of hydrogen is stored, the hydrogen storage alloy is allowed to store hydrogen, and the hydrogen storage alloy in which the hydrogen has been stored is transported by a vehicle to obtain the hydrogen storage station. The hydrogen supply system is characterized in that the hydrogen is transferred from a hydrogen supply station to a hydrogen supply station for supplying the hydrogen to a hydrogen-powered vehicle that is driven by hydrogen. 2. The hydrogen storage alloy according to claim 1, wherein the tank is filled with the hydrogen storage alloy, and the tank is transported by the vehicle. 3. The vehicle according to claim 2, wherein the tank can be freely loaded and unloaded with respect to the vehicle, and hydrogen is stored in the vehicle with the tank unloaded at the hydrogen storage station. In addition, a tank filled with hydrogen storage alloy is newly installed on the tower. 4. The tank according to claim 2, wherein the tank is configured so that hydrogen storage alloy can be taken in and out, and the hydrogen storage alloy exhausted tank mounted on the vehicle in the hydrogen storage station. On the other hand, a hydrogen storage alloy in which hydrogen is stored is newly filled. 5. The hydrogen storage station according to claim 2, wherein hydrogen is newly stored in the hydrogen storage alloy in the tank by supplying hydrogen gas to the tank mounted on the vehicle in the hydrogen storage station. What is done. 6. The tank according to claim 2, wherein the tank mounted on the vehicle is a plurality of independent small tanks each having a small capacity, and each of the small tanks can be freely loaded and unloaded from the vehicle, In the hydrogen storage station, a plurality of small tanks, each of which is filled with a hydrogen storage alloy in which hydrogen is stored, are newly mounted on the vehicle with the small tank unloaded. 7. The storage vehicle according to claim 6, wherein the vehicle has a storage case having a plurality of independent storage sections, and the plurality of small tanks have a plurality of storage cases. One that is carried by the vehicle in a state where it is stored separately in each part. 8. The vehicle according to claim 2, wherein the vehicle is a truck on which the tank is mounted. 9. The method according to claim 2, wherein the hydrogen storage alloy, in which hydrogen is stored, is cooled while being transported by the vehicle. 10. The tank according to claim 2, wherein the tank is carried by the vehicle while the tank is kept in a sealed state. 11. The tank according to claim 2, wherein the tank is transported by the vehicle while preventing a large movement of the hydrogen storage alloy in the tank. 12. The vehicle according to claim 2, wherein the tank is divided into a plurality of small tanks independent of each other, and the small tanks are carried by the vehicle. 13. A vehicle according to claim 14, wherein the plurality of small tanks are transported by the vehicle while the hydrogen storage alloy is independently cooled for each of the plurality of small tanks. 14. The hydrogen storage station according to claim 1, wherein the hydrogen storage station is a hydrogen production plant. 15. The hydrogen storage station according to claim 1, wherein the hydrogen storage station is installed at a location apart from a hydrogen production factory and hydrogen is supplied from the hydrogen production factory through a pipeline. thing. 16. The hydrogen supply system according to claim 2, wherein hydrogen is supplied from the hydrogen storage alloy mounted on the vehicle to the hydrogen supply station to the hydrogen supply station so that the tank itself is delivered to the hydrogen supply station. What is done by. 17. The hydrogen supply system according to claim 2, wherein the hydrogen is stored in the tank from the hydrogen storage alloy on which the hydrogen is stored in the vehicle, to the hydrogen supply station. What is done by passing the hydrogen storage alloy to the hydrogen supply station. 18. The tank according to claim 2, wherein hydrogen is supplied to the hydrogen supply station from a hydrogen storage alloy on which hydrogen is stored in the vehicle, while the tank is left in the vehicle. Performed by delivering the hydrogen gas released from the hydrogen storage alloy of No. 1 to the hydrogen supply station. 19. A hydrogen storage step for storing a large amount of hydrogen and supplying the stored hydrogen to another place.
In the operation, the loading station that receives the hydrogen storage alloy mounted on the vehicle.
A storage station for storing hydrogen in the hydrogen storage alloy received in the carry-in station, and a carry-out station for supplying the hydrogen storage alloy containing hydrogen to the vehicle. A hydrogen storage station structure characterized by the above. 20. The hydrogen storage alloy according to claim 19, wherein the hydrogen storage alloy is carried from the vehicle to the carry-in station for each tank mounted on the vehicle and filled with the hydrogen storage alloy. . 21. The discharge station for discharging a hydrogen storage alloy from the tank is provided between the carry-in station and the storage station, and the storage station and the carry-out station are provided. -A filling station for filling the tank with a hydrogen-absorbing alloy is provided between the tank and the tank. 22. The loading of the hydrogen storage alloy from the vehicle to the loading station according to claim 19, wherein a tank which is mounted on the vehicle and is filled with the hydrogen storage alloy is left in the vehicle. It is carried out by discharging only the hydrogen storage alloy from the tank as it is. 23. The inspection station according to claim 19, further comprising an inspection station for inspecting whether or not the hydrogen storage alloy is deteriorated between the carry-in station and the storage station. 24. The atmosphere according to claim 19, wherein the atmosphere of the occlusion station is an antioxidation atmosphere for preventing the oxidation of the hydrogen occlusion alloy. 25. The storage station according to claim 24, wherein the storage station is an inert gas atmosphere. 26. The inspection station according to claim 19, further comprising an inspection station for inspecting whether or not a predetermined amount of hydrogen has been stored in the hydrogen storage alloy between the storage station and the discharge station. . 27. The regeneration station according to claim 19, further comprising a regeneration station for regenerating the hydrogen storage alloy. 28. The hydrogen storage alloy regenerated in the regeneration station according to claim 27, is supplied to the storage station. 29. The inspection station according to claim 19, which inspects whether or not the hydrogen storage alloy carried into said carry-in station is deteriorated, and said deterioration is carried out in said test station. A regenerating station that regenerates the hydrogen storage alloy thus prepared, and sends the regenerated hydrogen storage alloy to the storage station;
Which is further equipped with. 30. An oxide film removing station for removing an oxide film of a hydrogen storage alloy is provided before the storage station according to claim 19. 31. A hydrogen-carrying vehicle for carrying hydrogen, characterized in that a tank filled with a hydrogen-absorbing alloy is mounted on a bed portion of the vehicle. 32. The cooling device according to claim 31, comprising a cooling device for cooling the hydrogen storage alloy in the tank. 33. The tank according to claim 31, wherein the tank is mounted in a tower so that it can be loaded and unloaded from a loading platform. 34. The tank according to claim 31, wherein the tank is fixedly installed on a bed portion. 35. The tank according to claim 31 or 34, wherein the tank has a hydrogen storage alloy supply port and a hydrogen storage alloy discharge port. 36. The tank according to claim 31 or 34, wherein the tank is provided with a hydrogen gas discharge port. 37. The method according to claim 31 or 35, wherein the tank is provided with an inlet for hydrogen gas. 38. The tank according to claim 33, wherein the tank is provided with traveling wheels. 39. The lock device according to claim 33, further comprising locking means for fixing the tank so as not to move. 40. The unloading device for unloading the tank according to claim 33. 41. The tank according to claim 31, wherein the tank has a closed structure. 42. The tank according to claim 31, wherein the tank is composed of a plurality of small tanks independent of each other. 43. The cooling apparatus according to claim 42, further comprising a plurality of cooling devices for individually cooling the plurality of small tanks. 44. The cooling device according to claim 43, wherein the plurality of cooling devices are set to cool only predetermined corresponding small tanks, and when a part of the plurality of cooling devices fails, A backup device for cooling the small tank corresponding to the defective cooling device by the normally operating cooling device. 45. The one according to claim 31, comprising a plurality of independent cooling devices for cooling the hydrogen storage alloy in the tank. 46. The storage case according to claim 31, wherein each of the tanks is a plurality of small tanks each having a small capacity and independent of each other, and a storage case having a plurality of storage portions independent of each other is provided in a cargo bed portion. The plurality of small tanks are individually stored in the plurality of storage units and can be loaded and unloaded freely from the storage units. 47. The storage case according to claim 46, wherein the storage case is mounted on a loading platform so as to be freely loaded and unloaded. 48. The storage case according to claim 47, wherein said storage case is a plurality of divided storage cases independent of each other.
Each of the divided storage cases can be loaded and unloaded from the cargo bed portion. 49. The loading / unloading device according to claim 47 or 48, for loading / unloading the storage case. 50. The cooling device as claimed in claim 46, further comprising a cooling device for supplying a cooling liquid to each of the storage parts. 51. The movement preventing member according to claim 31, wherein a movement preventing member for preventing a large movement of the hydrogen storage alloy in the tank is provided in the tank. 52. A supply-side conveyor for supplying the hydrogen storage alloy in the tank in a distributed manner in the vicinity of the supply port, in the tank;
A discharge conveyor for supplying the hydrogen storage alloy toward the vicinity of the discharge port. 53. The heat transfer tube according to claim 31, wherein a heat transfer tube is provided in the tank, and each end of the heat transfer tube is exposed to the outside of the tank as a connection section for another tube.