Hydrogen consumption system

Abstract

To enable a plurality of hydrogen tanks to be used for separate purposes with improved easiness in a hydrogen consumption system mounted with the plurality of hydrogen tanks.SOLUTION: A hydrogen consumption system comprises: a plurality of detachable hydrogen tanks; a fuel cell that consumes hydrogen supplied from the hydrogen tanks; supply piping that connects the hydrogen tanks to the fuel cell, allowing hydrogen to flow; and a control device. Each hydrogen tank is mounted with an opening-and-closing valve at an interface with the supply piping. The supply piping is equipped with a push rod at the interfaces with the hydrogen tanks. The control device determines which hydrogen tanks will supply hydrogen and which will not. For hydrogen tanks that supply hydrogen, the control device moves the push rods toward the opening-and-closing valves, opening and positioning the same to allow hydrogen to flow into the supply piping. For hydrogen tanks that do not supply hydrogen, the control device moves the push rods to a standby position, maintaining the opening-and-closing valves in a closed state while the valves remain connected to the supply piping to maintain airtightness.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a system that consumes hydrogen, which is supplied fuel.

Background Art

[0002] Patent Document 1 discloses that in a hydrogen storage unit, a plurality of hydrogen tanks are attached to a manifold, hydrogen is filled into the plurality of tanks via the manifold, and hydrogen is supplied from the plurality of tanks via the manifold.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a system in which a plurality of tanks are simultaneously connected, when there are a tank that supplies hydrogen and a tank that does not supply hydrogen, conventionally, it has not been possible to make a proper use such as supplying hydrogen only with an arbitrary tank. Therefore, hydrogen may flow into a tank that does not supply hydrogen.

[0005] In view of the above problems, the present disclosure enables more easily making a proper use of hydrogen tanks in a hydrogen consumption system equipped with a plurality of hydrogen tanks.

Means for Solving the Problems

[0006] This application relates to a hydrogen consumption system having a plurality of detachable hydrogen tanks, a fuel cell that consumes hydrogen by being supplied with hydrogen from the hydrogen tanks, a supply pipe that connects the hydrogen tanks and the fuel cell and through which hydrogen flows, and a control device. The hydrogen tank has an on-off valve at the connection portion with the supply pipe. The supply pipe is provided with a push rod at the connection portion with the hydrogen tank. The control device makes a determination to select a hydrogen tank that supplies hydrogen and a hydrogen tank that does not supply hydrogen. For the hydrogen tank that supplies hydrogen, the push rod is moved toward the on-off valve to open the valve and set it to a connection position where hydrogen can be supplied to the supply pipe. For the hydrogen tank that does not supply hydrogen, the push rod is moved to a standby position where it is in a closed valve state but maintains airtightness while being connected to the on-off valve and the supply pipe. A hydrogen consumption system is disclosed.

[0007] The control device may acquire the remaining hydrogen amounts of the plurality of hydrogen tanks by means of sensors, and during the determination for selection, control so that only the hydrogen tank with the least remaining hydrogen amount becomes the connection position, and the other hydrogen tanks become the standby position.

Advantages of the Invention

[0008] According to the present disclosure, in a hydrogen consumption system equipped with a plurality of hydrogen tanks, even if there is a hydrogen tank that is supplying hydrogen, the hydrogen tanks that are not supplying hydrogen are closed while being in communication with the supply pipe in a high-pressure state, so that hydrogen from the hydrogen tank in use does not flow in, and the hydrogen tanks can be used selectively.

Brief Description of the Drawings

[0009]

Figure 1

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DETAILED DESCRIPTION OF THE INVENTION

[0010] 1. Hydrogen consumption system FIG. 1 conceptually shows the configuration of a hydrogen consumption system 10 according to one embodiment. Such a hydrogen consumption system 10 has a hydrogen tank 11 as a hydrogen supply source, a hydrogen consumption device 20 as a hydrogen supply destination, and a control device 50. The hydrogen consumption system 10 of this embodiment is a system that supplies hydrogen stored in the hydrogen tank 11 to a fuel cell 21 included in the hydrogen consumption device 20 for power generation. Further, in this embodiment, the hydrogen tank 11 is configured to be detachable from the hydrogen consumption device 20. The following will be described in detail.

[0011] 1.1. Hydrogen tank The hydrogen tank 11 is a container for storing the fuel to be supplied (hydrogen in this embodiment) in a liquid state or a gaseous state. FIGS. 2 and 3 show diagrams for explanation. FIG. 2 is an external view, and FIG. 3 is a cross-sectional view along the direction of the axis O of the tank 11. As can be seen from these figures, in this embodiment, the hydrogen tank 11 has a liner 12, a reinforcing layer 13, a base 14, and an on-off valve 15. Each component will be described below.

[0012] 1.1.1. Liner The liner 12 is a hollow member that partitions the internal space of the hydrogen tank 11 and is cylindrical in this embodiment. The liner 12 has openings at both ends of a body portion 12a having a generally constant diameter narrowed by dome-shaped side end portions 12b, and a base 14 is disposed at the narrowed openings 12c. The liner 12 may be made of a material that can hold what is contained in its internal space (e.g., hydrogen) without leakage, and known materials can be used. Specifically, for example, it can be made of nylon resin, synthetic resin such as polyethylene-based resin, or metals such as stainless steel and aluminum. Among them, from the perspective of weight reduction of the tank, the material constituting the liner is preferably a synthetic resin. The thickness of the liner 12 is not particularly limited, but is preferably 0.5 mm to 3.0 mm.

[0013] 1.1.2. Reinforcing layer In the reinforcing layer 13, fibers are laminated over a plurality of layers, and the fibers are impregnated with a cured resin. The layer formed by the fibers is formed by winding a fiber bundle around the outer periphery of the liner 12 over a plurality of layers to a predetermined thickness. The thickness of the reinforcing layer 13 and the number of windings of the fiber bundle are not particularly limited because they are determined by the required strength, but are about 10 mm to 30 mm.

[0014] <Fiber bundle> For example, carbon fibers are used in the fiber bundle of the reinforcing layer 13, and the fiber bundle is a belt-like shape in which carbon fibers are bundled and have a predetermined cross-sectional shape (e.g., rectangular cross-section). Specifically, although not particularly limited, the cross-sectional shape may be a rectangle with a width of 6 mm to 20 mm and a thickness of about 0.1 mm to 0.3 mm. The amount of carbon fibers contained in the fiber bundle is not particularly limited either, but for example, it may be composed of about 36,000 carbon fibers.

[0015] <Impregnated resin> The resin impregnated and cured in the reinforcing layer 13 (fiber bundle) is not particularly limited as long as it can enhance the strength of the fiber. Examples of this include thermosetting resins that cure by heat. Specifically, there are epoxy resins containing amine-based or anhydride-based curing accelerators and rubber-based reinforcing agents, unsaturated polyester resins, etc. In addition, resin compositions that cure by mixing a curing agent with an epoxy resin as the main component can also be mentioned. According to this, by allowing the resin composition, which is this mixture, to reach and penetrate the fiber layer between the mixing of the main component and the curing agent until curing, it cures automatically.

[0016] <Protective layer> If necessary, a protective layer may be disposed on the outer periphery of the reinforcing layer. When provided, for example, glass fibers are wound and resin is impregnated therein. The resin to be impregnated can be considered in the same way as the reinforcing layer 12. Thereby, impact resistance can be imparted to the hydrogen tank 11. The thickness of the protective layer is not particularly limited, but can be about 1.0 mm to 1.5 mm.

[0017] 1.1.3. Fitting The fitting 14 is a member attached to each of the two openings 12c of the liner 12. It is disposed at each of both ends in the direction of the axis O of the liner 12 and functions as an opening for communicating the inside and outside of the hydrogen tank 11. An on-off valve 15 is attached to one of them. Therefore, the fitting 14 is provided with a circular cross-section hole for arranging the on-off valve 15. The inner surface of the hole is provided with a female thread corresponding to the male thread of the on-off valve 15. By combining the male thread of the on-off valve 15 with this female thread, the on-off valve 15 is fixed to the fitting 14. Further, the inner surface of the hole has a sealing surface that is a smooth surface on the inner side (high-pressure side) of the tank from the female thread. The sealing member provided on the outer periphery of the on-off valve 15 contacts this sealing surface to make the inside of the hydrogen tank 11 airtight (sealed).

[0018] The members constituting the cap 14 are not particularly limited as long as they have the necessary strength, and examples thereof include stainless steel and aluminum.

[0019] 1.1.4. On-off valve The on-off valve 15 is held in the hole of the cap 14 so as to pass through the inside and outside of the hydrogen tank 11. The on-off valve 15 is disposed in one of the two caps 14 provided at both longitudinal ends of the hydrogen tank 11. A plug 14a is disposed in the other cap 14 and sealed. FIG. 4 is a view including the vicinity of the on-off valve 15 in FIG. 3, showing a state in which the on-off valve 15 and the connecting device 23 of the gas consumption device 20 described later are separated. The on-off valve 15 has a shaft portion disposed inside the hole of the cap 14, and a male thread combined with the female thread of the cap 14 is provided on the outer peripheral surface of the shaft portion, whereby the on-off valve 15 is fixed to the hole of the cap 14. A seal member (not shown) is disposed on the outer peripheral surface of the on-off valve 15, and this seal member is disposed so as to contact the seal surface on the inner surface of the hole of the cap 14 to achieve airtightness (sealing). The on-off valve 15 is provided with a hole 15a communicating with the valve body 16, and the on-off valve 15 is operated by inserting a push rod 43 therein.

[0020] The on-off valve 15 has a valve body 16 and a connecting portion 17.

[0021] <Valve body> The valve body 16 is a switching valve that permits and regulates the communication between the inside and outside of the hydrogen tank 11. In this embodiment, the valve body 16 is biased so as to regulate the communication when closed, and by pressing the valve body 16 against the biasing force, the valve body 16 moves and the communication is permitted. Thus, in this embodiment, since the communication is switched by pressing and releasing the valve body 16, means for pressing the valve body 16 is required. Therefore, as described later, the hydrogen consumption device 20 is provided with means (push rod 24) for pressing the valve body 16. By performing the opening and closing of the valve body 16 on the hydrogen consumption device 20 side, it is not necessary to electrically connect and control the detachable hydrogen tank 11 to the control device 50, and the control by the control device 50 can be performed more reliably.

[0022] <Connection part> The on - off valve 15 has a connection part 17 on the side connected to the hydrogen consumption device 20. The connection part 17 is a part where the connection part 17 and the connection part 25 of the connection device 23 of the hydrogen consumption device 20 can be engaged and disengaged. Although the specific mode is not limited, in this embodiment, a mechanical coupling (mechanical interface) can be mentioned. Among them, a mount such as connecting a photographing lens to a main body in a camera can be applied, and more specifically, a C - mount can be used.

[0023] 1.1.5. Others The allowable pressure of the hydrogen tank 11 is not particularly limited, but from the viewpoint of being able to supply more hydrogen while being made small to maintain portability, a tank that can store hydrogen at an allowable pressure exceeding 20 MPa and not exceeding 70 MPa can be mentioned.

[0024] In this embodiment, a plurality of hydrogen tanks 11 are provided (for example, three), and each hydrogen tank 11 is filled with hydrogen. Here, an example where three hydrogen tanks 11 are arranged is given, and in order to distinguish them, symbols 11a, 11b, and 11c are used to represent them. These hydrogen tanks 11 may all have the same capacity, or may include tanks with different capacities.

[0025] 1.2. Hydrogen consumption device The hydrogen consumption device 20 is a destination for supplying hydrogen from the hydrogen tank 11, and is a device that receives hydrogen and consumes it. In this embodiment, as shown in FIG. 1, the hydrogen consumption device 20 includes a fuel cell 21, a supply pipe 22, a connection device 23, an injection 30, and a pressure gauge 31.

[0026] 1.2.1. Fuel cell The fuel cell 21 is a device that consumes the supplied hydrogen, receives the supply of hydrogen from the hydrogen tank 11, and receives the supply of air from an air hole (not shown) to generate electricity. The specific configuration of the fuel cell 21 is not particularly limited, and a known one can be used.

[0027] 1.2.2. Supply Pipe The supply pipe 22 is a path for guiding hydrogen from the hydrogen tank 11 to the fuel cell 21 and is composed of pipes. In this embodiment, each of the hydrogen tanks 11a, 11b, and 11c is connected to the fuel cell 21. Here, the pipes 22a, 22b, and 22c extending from each of the hydrogen tanks 11a, 11b, and 11c merge into one pipe 22d and are connected to the fuel cell 21.

[0028] 1.2.3. Connection Device The connection device 23 is arranged at the connection part of the supply pipe 22 with the hydrogen tank 11, is connected to the connection part 17 provided on the on-off valve 15 of the hydrogen tank 11 described above, and operates the opening and closing of the valve body 16 of the hydrogen tank 11. As can be seen from FIG. 4, the connection device 23 has a cylindrical body 23a, a push rod 24 arranged inside the cylindrical body 23a, and a connection part 25 provided at the tip of the cylindrical body 23a.

[0029] <Push Rod> The push rod 24 is a member that can enter the hole 15a of the on-off valve 15 of the hydrogen tank 11 and press the provided valve body 16. In this embodiment, it is rod-shaped and can press the valve body 16 at its tip. Therefore, as can be seen from FIG. 4, the push rod 24 is arranged inside the cylindrical body 23a and is configured to move in the axial direction as indicated by the straight arrow in FIG. 4 and can protrude from and retract into the cylindrical body 23a.

[0030] <Connection Part> The connection part 25 is provided at the end of the cylindrical body 23a on the side facing the connection part 17 provided on the on-off valve 15. The connection part 25 is engageable and detachable with the connection part 17 as described above. Specifically, in this embodiment, a mechanical coupling (mechanical interface) can be mentioned, and among them, a mount for connecting a photographing lens to the main body in a camera can be applied, and more specifically, a C-mount can be used. That is, the connection part 17 and the connection part 25 are connected by butting them together and then rotating them around the axis.

[0031] 1.2.4. Injection The injection 30 is arranged in the supply pipe 22 (supply pipe 22d in this embodiment) between the connection device 23 and the fuel cell 21, and controls the supply of hydrogen to the fuel cell 21. The specific form of the injection is not particularly limited, and a flow rate adjustment valve can be mentioned.

[0032] 1.2.5. Pressure Gauge The pressure gauge 31 is a pressure gauge that measures the internal pressure of each hydrogen tank 11 in the flow path of the supply pipe 22 (pressure in the pipe) so as to correspond to the internal pressure of each hydrogen tank 11 between the connection device 23 and the injection 30. In this embodiment, the specific form of the pressure gauge 31 is not particularly limited, but it is configured to be able to transmit the obtained pressure value data to the control device 50.

[0033] 1.3. Control Device The control device 50 is a device that determines whether the push rod 24 should be in the standby position and the connection position described later, and controls the position of the push rod 24. Therefore, in this embodiment, the control device 50 is configured to be able to communicate with the push rod 24 of the connection device 23, the injection 30, and the pressure gauge 31.

[0034] As conceptually shown in FIG. 5, the control device 50 includes a CPU (Central Processing Unit) 51 that is a processor and performs operations, a RAM (Random Access Memory) 52 that functions as a work area, a ROM (Read-Only Memory) 53 that functions as a recording medium, a receiving unit 54 that is an interface for receiving information into the control device 50 regardless of wired or wireless, and a transmitting unit 55 that is an interface for sending information from the control device 50 to the outside regardless of wired or wireless. Therefore, the control device 50 is configured such that the pressure gauge 31 is connected to the receiving unit 54 to receive information, and the push rod 24 and the injection 30 are connected to the transmitting unit 55 so that signals for their operation can be transmitted thereto.

[0035] The control device 50 stores a program that performs arithmetic processing for hydrogen supply control described later and transmits an operation signal to each device. In the control device 50, the CPU 51, RAM 52, and ROM 53 as hardware resources cooperate with the program. Specifically, the CPU 51 performs desired control by executing the computer program recorded in the ROM 53 in the RAM 52 that functions as a work area. Information acquired or generated by the CPU 51 is stored in the RAM 52. In addition, a separate recording medium may be provided inside or outside the control device 50, and a program and various data may be recorded therein. The specific control content will be described later.

[0036] Such a control device 50 can typically be configured by a computer.

[0037] 2. Hydrogen Supply Control The control performed when hydrogen is supplied from the hydrogen tank 11 to the fuel cell 21 in the hydrogen consumption system 10 will be described below. Here, as a premise, a plurality of hydrogen tanks 11 are installed in the hydrogen consumption system 10 before power generation starts. The hydrogen tank 11 can be attached to the hydrogen consumption system 10, for example, as follows. That is, as shown in FIG. 4, from the state where the hydrogen tank 11 is detached from the hydrogen consumption device 20, the connection portion 17 of the hydrogen tank 11 is abutted against the connection portion 25 of the connection device 23 of the hydrogen consumption device 20 and rotated around the axis. As a result, as shown in FIG. 6, the hydrogen tank 11 is connected to the hydrogen consumption device 20. However, at this point, the push rod 24 is in a state of being submerged in the cylinder body 23a and has not entered the hole 15a of the on-off valve 15 and is not pressing the valve body 16, so the on-off valve 15 is closed. Also, in this state, the on-off valve 15 and the supply pipe 22 are not yet in communication.

[0038] FIG. 7 shows the flow of hydrogen supply control S10 according to one example. As can be seen from FIG. 7, the hydrogen supply control S10 includes processes S11 to S18. Each process will be described below.

[0039] 2.1. Command to start power generation In the process S11 of the command to start power generation, the control device 50 receives a signal that serves as a trigger to start power generation. As a result, the control for power generation by the hydrogen consumption system 10 is started, and the hydrogen supply control S10 is performed. The signal serving as the trigger to start power generation is not particularly limited, and it may be that the user operates a provided power generation start switch (not shown) or it may be based on a program according to a predetermined time or timing.

[0040] 2.2. Acquisition of remaining amount of hydrogen tank In the process S12 of acquiring the remaining amount of the hydrogen tank, the remaining amounts of all the mounted hydrogen tanks 11 are acquired. Specifically, the following control is performed by the control device 50. From the state shown in FIG. 6 described above, the push rod 24 is projected from the cylinder body 23a, and control is performed so that the push rod 24 enters the hole 15a of the on-off valve 15 and presses the valve body 16 as shown in FIG. 8. Here, when the valve body 16 is pressed, the on-off valve 15 is opened, and further, the supply pipe 22 and the inside of the hydrogen tank 11 are put into a communicating state (such a position of the push rod 24 is referred to as the "connection position"). As a result, each pressure gauge 31 provided for each hydrogen tank 11 detects the pressure corresponding to the remaining amount of hydrogen in the hydrogen tank 11, and the control device 50 acquires and calculates this to obtain the remaining amount of hydrogen in each hydrogen tank 11.

[0041] 2.3. Determination of order of use In the process S13 of determining the order of use, based on the remaining amount of hydrogen in the hydrogen tank 11 obtained in the process S12, the control device 50 determines the order of use of the plurality of hydrogen tanks 11. There is no particular limitation on what order to use, and for example, it can be in the order of decreasing remaining amount of hydrogen. In this embodiment, an example of determining the order of use based on the remaining amount of hydrogen has been described, but it is not limited to this, and it may be determined according to the order of mounting or the position on the hydrogen consumption system 10.

[0042] 2.4. Changing the ones other than the hydrogen tank in use to the standby position In the process S14 of changing the hydrogen tanks other than the one to be used to the standby position, based on the order of use determined in the process S13, the hydrogen tanks other than the hydrogen tank 11 to be used first are changed to the standby position. Here, the standby position is a state in which the on-off valve 15 and the supply pipe 22 communicate with each other while maintaining airtightness in a high-pressure state with the valve body 16 closed. Specifically, the control device 50 moves the push rod 24 to release the pressing of the valve body 16, thereby closing the valve body 16. However, as shown in FIG. 9, the push rod 24 protrudes from the cylindrical body 23a and remains inside the hole 15a of the on-off valve 15. Thereby, the communication state between the on-off valve 15 and the connection device 23 (however, since the valve is closed, the communication with the inside of the tank is blocked) and the airtightness of the supply pipe 22 in the high-pressure state are maintained.

[0043] 2.5. Power Generation Start In the process S15 of starting power generation, hydrogen is supplied from the hydrogen tank 11 determined to be used in the process S13, and power generation is started. Specifically, the control device 50 operates the injection 30 to send hydrogen from the hydrogen tank 11 determined to be used to the fuel cell 21 for power generation. The hydrogen tank 11 that has become the standby position in the process S14 maintains communication with the supply pipe 22 at a high pressure, but since the valve body 16 is closed, there is no supply or inflow of hydrogen.

[0044] 2.6. Pressure Acquisition of the Used Tank In the process S16 of acquiring the pressure of the used hydrogen tank, the pressure of the used hydrogen tank 11 is acquired. Thereby, the remaining hydrogen amount of the used hydrogen tank 16 is monitored. This is performed by the pressure gauge 31 for the used hydrogen tank 11 detecting the pressure corresponding to the remaining hydrogen amount of the hydrogen tank 11, and the control device 50 acquiring this. Based on the obtained pressure, the control device 50 calculates the remaining hydrogen amount of the used hydrogen tank 11.

[0045] 2.7. Judgment on Continued Use of the Used Hydrogen Tank In the process S17 of determining whether to continue using the hydrogen tank, based on the remaining hydrogen amount of the hydrogen tank 11 in use obtained in process S16, the control device 50 determines whether to continue using this hydrogen tank 11. The criteria for determination are not particularly limited, and a threshold value can be set as required. In this process S17, when it is determined that the currently used hydrogen tank 11 can continue to be used, it is set to Yes and the process returns to S16. In this process S17, when it is determined that the currently used hydrogen tank 11 cannot continue to be used, it is set to No and the process proceeds to S18.

[0046] 2.8. Control for Changing the Hydrogen Tank in Use In the process S18 of control for changing the hydrogen tank in use, in response to the determination in process S17 that the use of the currently used hydrogen tank 11 cannot continue, the hydrogen tank 11 to be used is changed. This change is to change the hydrogen tank 11 that has been used from the connection position to the standby position, and based on the usage order determined in process S13, to change the next hydrogen tank 11 to be used from the standby position to the connection position. Thereby, hydrogen is supplied to the fuel cell 21 by the new hydrogen tank 11 in use. After the hydrogen tank 11 in use is changed, process S16 is performed on the changed hydrogen tank 11, and the above is repeated.

[0047] 2.9. Others The hydrogen supply control S10 ends, for example, due to the stop of power generation. After the end, the push rod 24 is stored in the cylinder body 23a and returned to the state shown in FIG. 6, so that the hydrogen tank 11 can be detached from the connection device 23.

[0048] 3. Effects, etc. According to the hydrogen consumption system described above, in a hydrogen consumption system equipped with a plurality of hydrogen tanks, even if there is a hydrogen tank supplying hydrogen, the hydrogen tanks not supplying hydrogen are closed while communicating with the supply pipe in a high-pressure state, and the push rod is inserted into the on-off valve, so that hydrogen from the used hydrogen tank does not flow in, and the hydrogen tanks can be used selectively.

[0049] Also, when one hydrogen tank is set as the connection position and all other hydrogen tanks are set as standby positions, the hydrogen tanks can be used one by one in order, and the replacement of the hydrogen tank 11 with a small remaining amount of hydrogen can also be carried out one by one. In this case, since the hydrogen tanks can be used one by one, for example, even if hydrogen leakage occurs, it is possible to suppress a large amount of leakage from a plurality of hydrogen tanks, and the leakage can be minimized.

Explanation of Reference Signs

[0050] 10…Hydrogen consumption system, 11…Hydrogen tank, 15…On-off valve, 16…Valve body, 17…Connection part, 20…Hydrogen consumption device, 21…Fuel cell, 22…Supply pipe, 23…Connection device, 24…Push rod, 25…Connection part, 30…Injection, 31…Pressure gauge, 50…Control device

Claims

1. A hydrogen consumption system having a plurality of detachable hydrogen tanks, a fuel cell that consumes hydrogen when hydrogen from the hydrogen tank is supplied, a supply pipe that connects the hydrogen tank and the fuel cell through which hydrogen flows, and a control device, wherein the hydrogen tank has an on-off valve at a connection portion with the supply pipe, the supply pipe is provided with a push rod at a connection portion with the hydrogen tank, and the control device, makes a determination to select a hydrogen tank that supplies hydrogen and a hydrogen tank that does not supply hydrogen from the plurality of hydrogen tanks, for the hydrogen tank that supplies hydrogen, moves the push rod toward the on-off valve to open the valve and sets it to a connection position where hydrogen can be supplied to the supply pipe, for the hydrogen tank that does not supply hydrogen, moves the push rod and sets it to a standby position where it is in a closed valve state but maintains airtightness in a state where the on-off valve and the supply pipe are connected, A hydrogen consumption system.

2. The control device acquires the remaining hydrogen amounts of the plurality of hydrogen tanks by a sensor, and during the determination for selection, controls such that only the hydrogen tank with the least remaining hydrogen amount becomes the connection position, and controls the other hydrogen tanks to be in the standby position. The hydrogen consumption system according to Claim 1.

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