JP5399161B2 - Hydrogen storage and supply station - Google Patents

Description

  The present invention relates to a hydrogen storage and supply station for supplying hydrogen to a vehicle fueled with hydrogen.

  Development of fuel cell vehicles using hydrogen as fuel is underway. In order to promote the spread of fuel cell vehicles of this type, it is necessary to install hydrogen supply stations in many places in terms of infrastructure as well as improving the performance of fuel cells and vehicles themselves. .

  The hydrogen supply station transports hydrogen produced at other locations to the hydrogen supply station by a dedicated vehicle such as a trailer. The hydrogen supply station only stores and supplies hydrogen, and the hydrogen source material is dedicated to the trailer. There is a type in which a vehicle is transported to a hydrogen supply station by a vehicle, and hydrogen is produced, stored and supplied at the hydrogen supply station (for example, Patent Document 1).

  Due to the nature of hydrogen supply stations, fire safety is required, so technologies aimed at fire countermeasures are being studied. Patent Document 2 discloses a technique in which a hydrogen tank is covered with a partition wall and a ceiling, and a ventilation port is provided near the ceiling. This document also discloses a hydrogen supply station having a roof provided with an inclination so as to gradually increase toward an end portion starting from a partition wall above a stop space of an automobile that supplies hydrogen.

JP 2007-126351 A Japanese Patent Laid-Open No. 7-101316

  These technologies are aimed at preventing hydrogen from staying and preventing fires, but they fully address the psychological anxiety of users when carrying hydrogen or hydrogen source materials from trailers to the hydrogen supply station. It cannot be said that it is done. That is, when the trailer enters the station, the trailer parks in the area adjacent to the user's stay area and performs necessary work. However, since the user's stay area and the trailer parking area are a common space without any barriers, the user may experience psychological anxiety and pressure. Also, in the unlikely event that a fire breaks out during the work, the flames of hydrogen are not visible, so the user is unaware of the fire and there is no possibility of unexpected damage.

  The present invention can reduce anxiety and pressure given to the user when carrying hydrogen or the like by a vehicle, and can further enhance safety for the user even in the event of a fire. It aims to provide a storage and supply station.

  A hydrogen storage and supply station according to an embodiment of the present invention includes a hydrogen storage container, a compressor for boosting the hydrogen stored in the storage container, and a pressure accumulator for accumulating the hydrogen boosted by the compressor. And a hydrogen storage container, a compressor, and a pressure accumulator, and a separator wall for accommodating hydrogen, and a vehicle connected to a pressure accumulator for supplying hydrogen to a vehicle using hydrogen as fuel. And hydrogen supply means installed outside the isolation wall. Inside the isolation wall is provided a vehicle parking space for supplying hydrogen to the hydrogen storage container, and the isolation wall has an openable / closable entrance for the vehicle to enter and exit.

  The hydrogen storage container, compressor, and pressure accumulator are physically and visually blocked from the outside by an isolation wall, and a vehicle parking space for supplying hydrogen to the hydrogen storage container is also provided inside the isolation wall. Therefore, it is physically and visually blocked from the outside. Since the vehicle is parked in a space partitioned from the user and the work is performed, it is possible to reduce anxiety and pressure given to the user during the work. In addition, even if a fire occurs during the work, the user can be isolated from the fire occurrence area, so that the safety for the user can be improved.

  A hydrogen storage and supply station according to another embodiment of the present invention includes a hydrogen source material storage vessel, a hydrogen production facility for producing hydrogen from the source material, and a hydrogen storage vessel produced by the hydrogen production facility. A compressor for boosting the hydrogen stored in the storage container, and a pressure accumulator for accumulating the hydrogen boosted by the compressor, and further, a storage container for raw material, and a hydrogen production facility, An isolation wall that houses the hydrogen storage container, compressor, and accumulator, and an external wall connected to the accumulator for supplying hydrogen to vehicles that use hydrogen as fuel Hydrogen supply means. Inside the isolation wall is provided a vehicle parking space for supplying the hydrogen source material to the source material storage container, and the isolation wall has an openable / closable entrance for the vehicle to enter and exit.

  According to the present invention, it is possible to reduce anxiety and pressure given to a user when hydrogen or the like is carried by a vehicle, and to further enhance safety for the user even in the event of a fire. New hydrogen storage and supply stations can be provided.

1 is a conceptual configuration diagram illustrating a hydrogen storage and supply station according to an embodiment of the present invention. It is a top view of the storage and supply station of hydrogen shown in FIG. It is a top view of the storage and supply station of hydrogen concerning other embodiments.

  Hereinafter, a first embodiment of the hydrogen storage and supply station of the present invention will be described with reference to the drawings. 1 and 2, the storage and supply station 1 includes a hydrogen storage container 2. The hydrogen storage container 2 is accommodated inside the isolation wall 3. The hydrogen storage container 2 is a container made of steel or the like. Hydrogen is stored in a liquefied state or in a state where the liquid component is dominant in order to suppress the internal pressure of the storage container 2. (Deleted) The storage and supply station 1 includes a compressor 15 as a means for compressing and boosting hydrogen, a pressure accumulator 4 for accumulating the boosted hydrogen, a pressure accumulator 4 and a hydrogen supply means 6 described later. And a cooler 5 provided in the vehicle. The hydrogen stored in the hydrogen storage container 2 is pressurized by the compressor 15 and sent to the pressure accumulator 4. The accumulator 4 is equipment used for the final filling of the hydrogen vehicle, and is filled with hydrogen at a high pressure suitable for filling. The accumulator 4 is made of steel or carbon fiber reinforced plastic (CFRP (Carbon Fiber Reinforced Plastic)). The pressure accumulator 4 is set to a pressure higher than that of the vehicle fuel tank. For example, when the pressure of the vehicle fuel tank is 70 MPa, the pressure of the pressure accumulator 4 is about 80 MPa. As the accumulator 4, a high-pressure accumulator for differential pressure filling, an intermediate accumulator for bank filling, or the like is used. The cooler 5 is a facility for cooling hydrogen in advance before filling because hydrogen temperature becomes high when rapidly filling hydrogen into the vehicle, and may be omitted depending on circumstances. In order to be able to directly fill the vehicle with hydrogen having a lower pressure than the hydrogen in the pressure accumulator 4 stored in the hydrogen storage container 2, the compressor 15 and the pressure accumulator 4 are bypassed, and the hydrogen storage container 2 and hydrogen A line directly connecting the supply means 6 via the pipe 7 is also provided. The accumulator 4, the compressor 15, and the cooler 5 that contain hydrogen are also accommodated inside the isolation wall 3. Inside the isolation wall 3, a refrigerant cooling device for the cooler 5, a pure water supply facility, a cooling water supply facility for the compressor 15, and the like are provided as incidental facilities for the above-described facilities.

  It is desirable that the isolation wall 3 has a structure that protects the user from the influence in the event of a fire. The isolation wall 3 can be made of an appropriate structural material such as reinforced concrete or lightweight foamed concrete (ALC). However, in some cases, a simpler partition is considered in consideration of the hydrogen storage capacity and the arrangement plan of the storage supply station 1. A typical wall may be used. Since hydrogen does not show a flame when it is burned, unlike gasoline, the user may not be aware of it in the event of a fire and may approach the storage container 2. Even in such a situation, the presence of the isolation wall 3 makes it easy to prevent unexpected situations.

  The upper part of the isolation wall 3 may be covered with a roof. As a result, the storage container 2 and the like can be protected from rainwater, and the work of carrying in hydrogen is facilitated. However, when a roof is provided, it is desirable to provide a ventilation port in order to prevent stagnation of hydrogen in the event of a hydrogen leak.

  Hydrogen supply means for supplying hydrogen to the fuel cell vehicle 11 to be supplied with hydrogen is provided outside the isolation wall 3. In the following, an automobile will be described as an example, but the target to which hydrogen is supplied is all vehicles that use hydrogen as fuel. The hydrogen supply means includes, for example, a hose (not shown), a supply nozzle (not shown) that is attached to the tip of the hose and supplies hydrogen to a hydrogen tank mounted on the fuel cell vehicle 11, and a necessary metering device (see FIG. (Not shown). The dispenser 6 is connected to the hydrogen storage container 2 by a pipe 7 penetrating the isolation wall 3.

  A service room 10 is also installed outside the isolation wall 3. The service room 10 is a user's temporary stay area equipped with a waiting room and a toilet, and is equivalent to the equipment installed in a conventional gas station.

  Inside the isolation wall 3, a parking space 8 for a vehicle 12 for supplying hydrogen to the hydrogen storage container 2 is provided. The vehicle 12 is not particularly limited as long as it has a container for carrying hydrogen. The isolation wall 3 is provided with an openable / closable entrance 9 through which the vehicle 12 enters and exits. Since the parking space 8 of the vehicle 12 is provided in another place separated from the user's stay space (stop position of the fuel cell vehicle 11 and the service room 10), the feeling of pressure and anxiety of the user is reduced.

  Note that a high-pressure gas container having an internal pressure of about 20 to 40 MPa can be used as the storage container 2. In this case, as an example, there is a method called “trailer placement” in which the trailer portion on which the tank is mounted is separated from the tractor portion (towing vehicle) in the parking space 8 and the separated trailer portion is used as it is as the hydrogen storage container 2. Applicable. In addition, a storage unit in which a large number of cylinder-like containers are bundled together is transported by a truck or the like, installed in a predetermined area inside the isolation wall 3 and used as a hydrogen storage container 2, which is called “curdle placement”. A method is also applicable. Also in these cases, the hydrogen stored in the trailer or the curdle is boosted by the compressor 15, sent to the pressure accumulator 4, and sent to the dispenser 6 via the cooler 5 as necessary.

  A second embodiment of the present invention will be described with reference to FIG. In the present embodiment, hydrogen is produced at a hydrogen production facility installed in the storage and supply station 1 ′. Accordingly, the hydrogen source material is carried into the storage and supply station 1 '. The raw material is not particularly limited as long as it is a general substance for producing hydrogen, and examples thereof include naphtha, kerosene, LPG, and city gas. The storage container 13 stores such a hydrogen source material. The hydrogen production facility 14 is not particularly limited as long as hydrogen can be extracted from the raw material, but as an example in the case of using the raw materials listed above, a steam reformer or hydrogen PSA (Pressure Swing Adsorption) purification is used. An apparatus etc. can be mentioned.

  Hydrogen produced in the hydrogen production facility 14 is sent to the storage container 2. The configuration downstream of the hydrogen storage container 2 is the same as in the first embodiment. The raw material storage container 13, the hydrogen production facility 14, the pressure accumulator 4, the compressor 15, and the cooler 5 are accommodated inside the isolation wall 3. Therefore, the safety for the user can be further enhanced.

  On the outside of the isolation wall 3, a hydrogen supply means (dispenser 6) and a service room 10 similar to those in the first embodiment are provided.

  Inside the isolation wall 3, a parking space 8 ′ for a vehicle 12 ′ for supplying the hydrogen source material to the source material storage container 13 is provided, and the isolation wall 3 can be opened and closed for the vehicle 12 ′ to enter and exit. The entrance / exit 9 ′ is provided. The basic configuration of these is the same as that of the first embodiment.

  Although some embodiments of the present invention have been described by taking a hydrogen storage and supply station for a fuel vehicle as an example, the present invention can also be applied to a more general hydrogen storage and supply system.

DESCRIPTION OF SYMBOLS 1,1 'Storage supply station 2 Storage container 3 Isolation wall 4 Accumulator 5 Cooler 6 Dispenser 7 Piping 8, 8' Parking space 9, 9 'Entrance / exit 10 Service room 11 Fuel cell vehicle 12, 12' Vehicle 13 Storage container 14 Hydrogen production equipment 15 Compressor

Claims (3)

A hydrogen storage container, a compressor for boosting the hydrogen stored in the storage container, and a pressure accumulator for accumulating the hydrogen boosted by the compressor;
An isolation wall that houses the hydrogen storage container, the compressor, and the pressure accumulator;
Hydrogen supply means connected to the pressure accumulator and installed outside the isolation wall for supplying hydrogen to a vehicle using hydrogen as fuel,
Have
Inside the isolation wall is provided a vehicle parking space for supplying hydrogen to the hydrogen storage container, and the isolation wall has an openable / closable entrance for the vehicle to enter and exit.
Hydrogen storage and supply station. A hydrogen source material storage vessel, a hydrogen production facility for producing hydrogen from the source material, a hydrogen storage vessel produced by the hydrogen production facility, and a pressure of hydrogen stored in the storage vessel A compressor, and a pressure accumulator for accumulating hydrogen boosted by the compressor,
An isolation wall for accommodating the raw material storage container, the hydrogen production facility, the hydrogen storage container, the compressor, and the pressure accumulator;
Hydrogen supply means connected to the pressure accumulator and installed outside the isolation wall for supplying hydrogen to a vehicle using hydrogen as fuel,
Have
Inside the isolation wall is provided a vehicle parking space for supplying hydrogen source material to the source material storage container, and the isolation wall has an openable / closable entrance for the vehicle to enter and exit. Yes,
Hydrogen storage and supply station.   Provided between the pressure accumulator and the hydrogen supply means, and has a cooling means for hydrogen sent from the pressure accumulator to the hydrogen supply means, and the hydrogen cooling means is accommodated inside the isolation wall. The hydrogen storage and supply station according to claim 1 or 2.

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