JP2021127781A - Hydrogen station - Google Patents

Abstract

To provide a hydrogen station which can supply hydrogen to a charging object when a commercial power source is lost.SOLUTION: A hydrogen station 1 includes: a supply bypass pipe 70; a battery bypass pipe 80; a supply manual valve 91 which is provided at the supply bypass pipe 70 to manually open or close the supply bypass pipe 70; a battery manual valve 92 which is provided at the battery bypass pipe 50 to manually open or close the battery bypass pipe 50; a power storage device 22 which causes a stationary fuel battery 20 to operate when a commercial power source 251 is lost; and an emergency supply device 200 which is electrically connected to the stationary fuel battery 20 and a dispenser 30 and supplies electric power generated by the stationary fuel battery 20 to at least the dispenser 30 when the commercial power source 251 is lost.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hydrogen station.

Conventionally, the hydrogen station described in Patent Document 1 is known.
The hydrogen station includes a hydrogen gas tank as a hydrogen supply source in which hydrogen is stored, a fuel cell, and a hydrogen gas replenishment means as a hydrogen supply device for supplying hydrogen to a filling target. The hydrogen station includes a first hydrogen gas supply pipe as a supply hydrogen gas pipe that connects the hydrogen gas tank and the fuel cell. The first hydrogen gas supply pipe is a pipe for supplying hydrogen stored in the hydrogen gas tank to the fuel cell. The hydrogen station includes a second hydrogen gas supply pipe as a hydrogen gas pipe for a battery that connects a hydrogen gas tank and a hydrogen gas replenishment means. The second hydrogen gas supply pipe is a pipe for supplying the hydrogen stored in the hydrogen gas tank to the hydrogen gas replenishment means. The hydrogen station is provided with a valve provided in the first hydrogen gas supply pipe. The valve is an electromagnetic valve that opens the first hydrogen gas supply pipe when power is supplied and closes the first hydrogen gas supply pipe when power is not supplied. The hydrogen station is provided with a valve provided in the second hydrogen gas supply pipe. The valve is an electromagnetic valve that opens the second hydrogen gas supply pipe when power is supplied and closes the second hydrogen gas supply pipe when power is not supplied. The electromagnetic valve and the hydrogen gas replenishment means are supplied with electric power of a commercial power source.

Japanese Unexamined Patent Publication No. 2016-196929

By the way, when the commercial power source is lost due to a power failure or the like, the solenoid valve is closed, hydrogen is not supplied to the hydrogen gas replenishment means, and the hydrogen gas supply means is stopped. In addition, when the commercial power supply is lost, the hydrogen gas replenishment means also stops functioning. Therefore, when the commercial power source is lost, hydrogen cannot be supplied to the filling target, and the hydrogen stored in the hydrogen gas tank cannot be effectively used.

An object of the present invention is to provide a hydrogen station capable of supplying hydrogen to a filling target in the event of loss of commercial power.

The hydrogen station that solves the above problems is a hydrogen supply source in which hydrogen is stored, a fuel cell, a hydrogen supply device that supplies hydrogen to a filling target, and hydrogen stored in the hydrogen supply source to the hydrogen supply device. Provided in the supply hydrogen gas pipe, which is a pipe for supplying, the battery hydrogen gas pipe, which is a pipe for supplying the hydrogen stored in the hydrogen supply source to the fuel cell, and the supply hydrogen gas pipe. The supply electromagnetic valve, which is a valve that opens the supply hydrogen gas pipe when power is supplied and closes the supply hydrogen gas pipe when power is not supplied, and the above-mentioned A valve provided in a hydrogen gas pipe for a battery, which opens the hydrogen gas pipe for a battery when power is supplied and closes the hydrogen gas pipe for a battery when power is not supplied. A hydrogen station including an electromagnetic valve for a battery, which is connected to the hydrogen gas pipe for supply and connects the upstream and downstream of the electromagnetic valve for supply in the hydrogen supply direction of the hydrogen gas pipe for supply. It is a pipe that is connected to the hydrogen gas pipe for the battery and the upstream and the downstream of the electromagnetic valve for the battery in the hydrogen supply direction of the hydrogen gas pipe for the battery. A bypass pipe for a battery, a manual valve for supply that is provided in the bypass pipe for supply and manually opens and closes the bypass pipe for supply, and a bypass pipe for battery that is provided in the bypass pipe for battery and manually opens and closes the bypass pipe for battery. A manual valve for a battery, an operating source that enables the fuel cell to generate electricity when the commercial power source is lost, and the fuel cell and the hydrogen supply device can be electrically connected to each other, and the fuel cell is configured when the commercial power source is lost. It is provided with at least a temporary supply device for supplying the electric power generated in the above to the hydrogen supply device.

According to this, even if the hydrogen gas pipe for supply and the hydrogen gas pipe for battery are closed when the commercial power supply is lost, the manual valve for supply and the manual valve for battery are manually operated to provide the bypass pipe for supply and the bypass pipe for battery. Hydrogen can be supplied to the hydrogen supply device and the fuel cell by opening the battery bypass pipe. Further, when the commercial power source is lost, the fuel cell can be operated by the operating source, and the electric power generated by the fuel cell can be supplied from the temporary supply device to the hydrogen supply device to operate the hydrogen supply device. Therefore, hydrogen can be supplied to the filling target when the commercial power source is lost.

In the above-mentioned hydrogen station, a compressor for delivering the hydrogen of the hydrogen supply source in a compressed state and a pressure accumulator for storing the hydrogen sent out from the compressor are provided, and the supply hydrogen gas pipe is the above-mentioned The first pipe for supplying the hydrogen stored in the hydrogen supply source to the compressor, the second pipe for supplying the hydrogen sent from the compressor to the accumulator, and the accumulator are stored in the accumulator. It has a third pipe for supplying the hydrogen to the hydrogen supply device, and the supply electromagnetic valve is provided in each of the first pipe, the second pipe, and the third pipe, and the supply is provided. The bypass pipe is connected to each of the first pipe, the second pipe, and the third pipe, and in the hydrogen supply direction of the first pipe, the second pipe, and the third pipe, the first pipe is used. It is preferable that the upstream and downstream of the supply electromagnetic valve provided in each of the 1 pipe, the 2nd pipe, and the 3rd pipe are connected.

According to this, hydrogen can be supplied from the accumulator to the hydrogen supply device by opening the supply bypass pipe connected to the third pipe by the supply manual valve when the commercial power supply is lost. Therefore, when the commercial power supply is lost, the compressor is stopped, and even if hydrogen is not supplied from the hydrogen supply source to the accumulator via the compressor, the high-pressure hydrogen filled in the accumulator is supplied to the hydrogen supply device. be able to.

In the hydrogen station, the operating source may be a power storage device mounted on the fuel cell.
According to this, the power storage device can be charged in advance with the electric power generated by the fuel cell. Therefore, when the commercial power source is lost due to a power failure or the like, the fuel cell can be operated quickly by using the electric power of the power storage device.

According to the present invention, hydrogen can be supplied to the filling target when the commercial power source is lost.

Schematic diagram of a hydrogen station.

Hereinafter, an embodiment in which a hydrogen station is embodied will be described with reference to FIG.
As shown in FIG. 1, the hydrogen station 1 is a replenishment station for replenishing hydrogen to an industrial vehicle such as a fuel cell type forklift as a filling target T or a fuel cell vehicle. The hydrogen station 1 includes a hydrogen supply source 10 in which hydrogen is stored, a stationary fuel cell 20 as a fuel cell, and a dispenser 30 as a hydrogen supply device for supplying hydrogen to the filling target T. The hydrogen supply source 10 is, for example, a curdle formed by assembling a plurality of hydrogen gas cylinders. The pressure of hydrogen stored in the hydrogen supply source 10 is about 20 MPa.

The stationary fuel cell 20 is equipped with a stack body 21 in which a plurality of fuel cell cells are stacked, and a power storage device 22. The stationary fuel cell 20 is a fuel cell unit having a stack body 21 and a power storage device 22. The fuel cell is, for example, a polymer electrolyte fuel cell. The stack body 21 generates electricity by an electrochemical reaction between hydrogen as a fuel gas and oxygen in the air as an oxidant gas. The electric power generated by the stack body 21 is DC electric power.

The power storage device 22 stores a part of the electric power generated by the stack body 21. The power storage device 22 is, for example, a lithium ion secondary battery. In the present embodiment, the electric power generated by the stationary fuel cell 20 is used as a power source for a facility 252 such as a convenience store or a factory located outside the site of the hydrogen station 1. Facility 252 has a power conditioner for converting the electric power generated by the stationary fuel cell 20 into AC electric power. The stationary fuel cell 20 includes a stack body 21, a compressor that supplies air to the stack body 21, and an operating unit for operating the stack body 21 using the power stored in the power storage device 22. include. Further, the electric power generated by the stationary fuel cell 20 can be used as a backup power source for the commercial power source 251 described later, and can also be used as a power source for charging an electric vehicle.

The hydrogen station 1 includes a supply hydrogen gas pipe 40 that connects the hydrogen supply source 10 and the dispenser 30, a battery hydrogen gas pipe 50 that connects the hydrogen supply source 10 and the stack 21 of the stationary fuel cell 20. It has. The hydrogen station 1 includes three supply solenoid valves 61 provided in the supply hydrogen gas pipe 40 and one battery solenoid valve 62 provided in the battery hydrogen gas pipe 50. The hydrogen station 1 includes a compressor 101 provided in the supply hydrogen gas pipe 40 and a pressure accumulator 102 provided in the supply hydrogen gas pipe 40. The three supply solenoid valves 61 are referred to as a first solenoid valve 61a, a second solenoid valve 61b, and a third solenoid valve 61c, respectively.

The supply hydrogen gas pipe 40 has a first pipe 41, a second pipe 42, and a third pipe 43. The first pipe 41 connects the hydrogen supply source 10 and the compressor 101. The first pipe 41 is a pipe for supplying the hydrogen stored in the hydrogen supply source 10 to the compressor 101. The compressor 101 is a compressor that delivers hydrogen from the hydrogen supply source 10 in a compressed state. The first pipe 41 has a first upstream pipe 41a and a first downstream pipe 41b. One end of the first upstream pipe 41a is connected to the hydrogen supply source 10, and the other end of the first upstream pipe 41a is connected to the first solenoid valve 61a. One end of the first downstream pipe 41b is connected to the first solenoid valve 61a, and the other end of the first downstream pipe 41b is connected to the compressor 101. The first solenoid valve 61a is provided in the first pipe 41.

The second pipe 42 connects the compressor 101 and the accumulator 102. The second pipe 42 is a pipe for supplying hydrogen sent from the compressor 101 to the accumulator 102. The accumulator 102 stores hydrogen delivered from the compressor 101. The accumulator 102 stores the compressed hydrogen delivered from the compressor 101 in a state of holding the pressure. The pressure of hydrogen stored in the accumulator 102 is higher than the pressure of the hydrogen supply source 10. The second pipe 42 has a second upstream pipe 42a and a second downstream pipe 42b. One end of the second upstream pipe 42a is connected to the compressor 101, and the other end of the second upstream pipe 42a is connected to the second solenoid valve 61b. One end of the second downstream pipe 42b is connected to the second solenoid valve 61b, and the other end of the second downstream pipe 42b is connected to the accumulator 102. The second solenoid valve 61b is provided in the second pipe 42.

The third pipe 43 connects the accumulator 102 and the dispenser 30. The third pipe 43 is a pipe for supplying the hydrogen stored in the accumulator 102 to the dispenser 30. The third pipe 43 has a third upstream pipe 43a and a third downstream pipe 43b. One end of the third upstream pipe 43a is connected to the accumulator 102, and the other end of the third upstream pipe 43a is connected to the third solenoid valve 61c. One end of the third downstream pipe 43b is connected to the third solenoid valve 61c, and the other end of the third downstream pipe 43b is connected to the dispenser 30. The third solenoid valve 61c is provided in the third pipe 43.

The three supply solenoid valves 61, the compressor 101, and the dispenser 30 are operated by being supplied with electric power from the commercial power source 251 as shown by the arrow A in FIG. The commercial power supply 251 is, for example, contract power for supplying power to the hydrogen station 1, and is an AC power supply. Each of the first electromagnetic valve 61a, the second electromagnetic valve 61b, and the third electromagnetic valve 61c opens the first pipe 41, the second pipe 42, and the third pipe 43 when power is supplied. It is a valve that closes each of the first pipe 41, the second pipe 42, and the third pipe 43 when power is not supplied. Here, the open state of the first pipe 41 indicates a state in which the first upstream pipe 41a and the first downstream pipe 41b are communicated with each other, and the closed state of the first pipe 41 means the first upstream pipe 41a and the first upstream pipe 41a. 1 Shows a state in which the downstream pipe 41b is cut off. The open state of the second pipe 42 indicates a state in which the second upstream pipe 42a and the second downstream pipe 42b are communicated with each other, and the closed state of the second pipe 42 means the second upstream pipe 42a and the second downstream pipe. It shows a state in which the 42b is cut off. The open state of the third pipe 43 indicates a state in which the third upstream pipe 43a and the third downstream pipe 43b are communicated with each other, and the closed state of the third pipe 43 means the third upstream pipe 43a and the third downstream pipe. It shows a state in which 43b and 43b are cut off. That is, the three supply solenoid valves 61 are valves that open the supply hydrogen gas pipe 40 when power is being supplied and close the supply hydrogen gas pipe 40 when power is not being supplied. Is. The open state of the supply hydrogen gas pipe 40 indicates a state in which the hydrogen supply source 10 and the dispenser 30 are in communication with each other, and the closed state of the supply hydrogen gas pipe 40 means that the hydrogen supply source 10 and the dispenser 30 are in communication with each other. It shows a state in which hydrogen is not supplied from the hydrogen supply source 10 to the dispenser 30 without passing through.

When power is being supplied to the three supply solenoid valves 61, the supply hydrogen gas pipe 40 is in an open state, so that the hydrogen stored in the hydrogen supply source 10 is sucked into the compressor 101, and the compressor It is supplied to the accumulator 102 in a state of being compressed by 101. The hydrogen supplied to the accumulator 102 is stored in a state where the pressure is maintained and is supplied to the dispenser 30.

The dispenser 30 has an adjusting mechanism for adjusting the flow rate of hydrogen. The dispenser 30 fills the filling target T with hydrogen after adjusting the flow rate of hydrogen supplied from the accumulator 102 by an adjusting mechanism. Therefore, the supply hydrogen gas pipe 40 is a pipe for connecting the hydrogen supply source 10 and the dispenser 30 and supplying the hydrogen stored in the hydrogen supply source 10 to the dispenser 30.

The battery hydrogen gas pipe 50 has a first connection pipe 51 and a second connection pipe 52. One end of the first connection pipe 51 is connected to the first upstream pipe 41a, and the other end of the first connection pipe 51 is connected to the battery solenoid valve 62. One end of the second connection pipe 52 is connected to the battery solenoid valve 62, and the other end of the second connection pipe 52 is connected to the stack body 21 of the stationary fuel cell 20. The battery solenoid valve 62 is provided in the battery hydrogen gas pipe 50. One end of the first connection pipe 51 may be connected to the hydrogen supply source 10.

Power is supplied to the solenoid valve 62 for the battery from the commercial power supply 251 as shown by the arrow A in FIG. The battery electromagnetic valve 62 is a valve that opens the battery hydrogen gas pipe 50 when power is being supplied and closes the battery hydrogen gas pipe 50 when power is not being supplied. The open state of the hydrogen gas pipe 50 for a battery means a state in which the first connection pipe 51 and the second connection pipe 52 are in communication with each other, and the closed state of the hydrogen gas pipe 50 for a battery means a state in which the first connection pipe 51 is connected. And the second connection pipe 52 are cut off.

When power is being supplied to the battery electromagnetic valve 62, the battery hydrogen gas pipe 50 is in an open state, so that the hydrogen stored in the hydrogen supply source 10 is the first connection pipe 51 and the battery electromagnetic valve 62. , And is supplied to the stationary fuel cell 20 through the second connection pipe 52. Therefore, the hydrogen gas pipe 50 for the battery is a pipe for supplying the hydrogen stored in the hydrogen supply source 10 to the stationary fuel cell 20. The stationary fuel cell 20 is operating at the same time in a situation where electric power is supplied to the three supply electromagnetic valves 61, the compressor 101, and the dispenser 30 and hydrogen can always be filled in the filling target T, and power is generated. The electric power is supplied to the facility 252.

The hydrogen station 1 includes three supply bypass pipes 70, one battery bypass pipe 80, three supply manual valves 91, and one battery manual valve 92. Each of the three supply bypass pipes 70 is connected to the first pipe 41, the second pipe 42, and the third pipe 43, respectively. Each of the three supply bypass pipes 70 is designated as a first bypass pipe 71, a second bypass pipe 72, and a third bypass pipe 73. The first bypass pipe 71 has a first upstream bypass pipe 71a and a first downstream bypass pipe 71b. The second bypass pipe 72 has a second upstream bypass pipe 72a and a second downstream bypass pipe 72b. The third bypass pipe 73 has a third upstream bypass pipe 73a and a third downstream bypass pipe 73b. Further, each of the three supply manual valves 91 is a first manual valve 91a, a second manual valve 91b, and a third manual valve 91c.

Hereinafter, the first bypass pipe 71 connected to the first pipe 41 will be described.
One end of the first upstream bypass pipe 71a is connected to the first upstream pipe 41a, and the other end of the first upstream bypass pipe 71a is connected to the first manual valve 91a. One end of the first upstream bypass pipe 71a is connected to a portion closer to the compressor 101 than a portion to which the first connection pipe 51 is connected in the first upstream pipe 41a. One end of the first downstream bypass pipe 71b is connected to the first manual valve 91a, and the other end of the first downstream bypass pipe 71b is connected to the first downstream pipe 41b. The first bypass pipe 71 is connected to the first pipe 41 so as to straddle the first solenoid valve 61a. The first bypass pipe 71 is a pipe that connects the upstream and the downstream of the first solenoid valve 61a in the hydrogen supply direction of the first pipe 41.

The first manual valve 91a is provided in the first bypass pipe 71. The first manual valve 91a has a function of manually opening and closing the first bypass pipe 71. The open state of the first bypass pipe 71 indicates a state in which the first upstream bypass pipe 71a and the first downstream bypass pipe 71b are communicated with each other, and the closed state of the first bypass pipe 71 means the first upstream bypass pipe 71a. And the first downstream bypass pipe 71b are cut off.

Next, the second bypass pipe 72 connected to the second pipe 42 will be described.
One end of the second upstream bypass pipe 72a is connected to the second upstream pipe 42a, and the other end of the second upstream bypass pipe 72a is connected to the second manual valve 91b. One end of the second downstream bypass pipe 72b is connected to the second manual valve 91b, and the other end of the second downstream bypass pipe 72b is connected to the second downstream pipe 42b. The second bypass pipe 72 is connected to the second pipe 42 so as to straddle the second solenoid valve 61b. The second bypass pipe 72 is a pipe that connects the upstream and the downstream of the second solenoid valve 61b in the hydrogen supply direction of the second pipe 42.

The second manual valve 91b is provided in the second bypass pipe 72. The second manual valve 91b has a function of manually opening and closing the second bypass pipe 72. The open state of the second bypass pipe 72 indicates a state in which the second upstream bypass pipe 72a and the second downstream bypass pipe 72b are communicated with each other, and the closed state of the second bypass pipe 72 means the second upstream bypass pipe 72a. And the second downstream bypass pipe 72b are cut off.

Next, the third bypass pipe 73 connected to the third pipe 43 will be described.
One end of the third upstream bypass pipe 73a is connected to the third upstream pipe 43a, and the other end of the third upstream bypass pipe 73a is connected to the third manual valve 91c. One end of the third downstream bypass pipe 73b is connected to the third manual valve 91c, and the other end of the third downstream bypass pipe 73b is connected to the third downstream pipe 43b. The third bypass pipe 73 is connected to the third pipe 43 so as to straddle the third solenoid valve 61c. The third bypass pipe 73 is a pipe that connects the upstream and the downstream of the third solenoid valve 61c in the hydrogen supply direction of the third pipe 43.

The third manual valve 91c is provided in the third bypass pipe 73. The third manual valve 91c has a function of manually opening and closing the third bypass pipe 73. The open state of the third bypass pipe 73 indicates a state in which the third upstream bypass pipe 73a and the third downstream bypass pipe 73b are communicated with each other, and the closed state of the third bypass pipe 73 means the third upstream bypass pipe 73a. And the third downstream bypass pipe 73b are cut off.

Each of the three supply manual valves 91 is provided in each of the three supply bypass pipes 70. The three manual valves 91 for supply always keep the bypass pipe 70 for supply closed when the commercial power supply 251 continues to supply AC power.

The battery bypass pipe 80 has an upstream bypass pipe 81 and a downstream bypass pipe 82. One end of the upstream bypass pipe 81 is connected to the first connection pipe 51, and the other end of the upstream bypass pipe 81 is connected to the battery manual valve 92. One end of the downstream bypass pipe 82 is connected to the battery manual valve 92, and the other end of the downstream bypass pipe 82 is connected to the second connection pipe 52. The battery bypass pipe 80 is connected to the battery hydrogen gas pipe 50 so as to straddle the battery solenoid valve 62. The battery bypass pipe 80 is a pipe that connects the upstream and downstream of the battery solenoid valve 62 in the hydrogen supply direction of the battery hydrogen gas pipe 50. The battery manual valve 92 is provided in the battery bypass pipe 80. The battery manual valve 92 is a valve that manually opens and closes the battery bypass pipe 80. The open state of the battery bypass pipe 80 indicates a state in which the upstream bypass pipe 81 and the downstream bypass pipe 82 are communicated with each other, and the closed state of the battery bypass pipe 80 means the upstream bypass pipe 81 and the downstream bypass pipe 82. Indicates a state in which is blocked. The battery manual valve 92 always keeps the battery bypass pipe 80 closed when the commercial power supply 251 continues to supply AC power.

The hydrogen station 1 includes a temporary supply device 200. The temporary supply device 200 includes a switching device 204 and a power supply device 205. The stationary fuel cell 20 and the switching device 204 are electrically connected by the first wiring 201. The switching device 204 and the power supply device 205 are electrically connected by the second wiring 202. The power supply device 205 and the dispenser 30 are electrically connected by the third wiring 203. The first wiring 201, the second wiring 202, and the third wiring 203 form wiring that electrically connects the stationary fuel cell 20 and the dispenser 30. That is, the stationary fuel cell 20 and the dispenser 30 are electrically connected by the first wiring 201, the second wiring 202, the third wiring 203, and the temporary supply device 200. The temporary supply device 200 is configured so that the stationary fuel cell 20 and the dispenser 30 can be electrically connected to each other.

The electric power generated by the stationary fuel cell 20 is supplied to the switching device 204. AC power supplied from the commercial power supply 251 is supplied to the switching device 204. The switching device 204 converts the AC power supplied from the commercial power supply 251 into DC power by converting the AC power supplied from the commercial power supply 251 into the first electric circuit for flowing the power generated by the stationary fuel cell 20 to the second wiring 202. 2 Switches between the second electric circuit flowing through the wiring 202. The switching device 204 is, for example, a manual lever. By operating the switching device 204, either the first electric circuit or the second electric circuit is electrically connected to the second wiring 202. When AC power continues to be supplied from the commercial power supply 251 the manual lever of the switching mechanism of the switching device 204 is maintained in a state in which the second electric circuit is electrically connected to the second wiring 202.

The power supply device 205 is a control panel that supplies power to equipment on the premises of the hydrogen station 1. The power supply device 205 includes an uninterruptible power supply device 205a (hereinafter referred to as “UPS205a”) and a controller 205b. The UPS 205a is electrically connected to the second wiring 202. The UPS 205a converts the power stored in the secondary battery 205c into AC power when the power supplied via the second wiring 202 is stored and the commercial power supply 251 is lost due to a power failure or the like. It has a power supply unit 205d that flows through the wiring 203. When the power is no longer supplied from the second wiring 202, the UPS 205a converts the power stored in the secondary battery 205c into AC power by the power supply unit 205d and flows it to the third wiring 203 when the commercial power supply 251 is lost.

The controller 205b is a microcomputer, and has a memory in which a program is stored and a CPU for executing the program stored in the memory. The program includes a program for performing a pressure holding test to check the pressure of hydrogen supplied to the dispenser 30. The pressure holding test is a test performed by operating the power supply device 205 by an operator when the commercial power supply 251 is lost. When the pressure of hydrogen supplied to the dispenser 30 in the pressure holding test is a desired value, the controller 205b causes the display of the power supply device 205 to display a filling permission signal permitting the filling operation of the dispenser 30.

The operation of this embodiment will be described.
When the hydrogen station 1 is supplied with electric power from the commercial power source 251, AC power is supplied from the commercial power source 251 to the first solenoid valve 61a, the second solenoid valve 61b, and the third solenoid valve 61c, so that the hydrogen gas for supply is supplied. The pipe 40 is in the open state. Further, since AC power is also supplied from the commercial power source 251 to the compressor 101 and the dispenser 30, the hydrogen stored in the hydrogen supply source 10 is supplied to the hydrogen gas pipe 40 for supply, the compressor 101, and the accumulator 102. It is supplied to the dispenser 30 via. Then, by operating the dispenser 30, hydrogen can be filled in the filling target T. As a result, the hydrogen station 1 operates.

Further, when the hydrogen station 1 is operating, AC power is supplied from the commercial power source 251 to the battery electromagnetic valve 62, so that the battery hydrogen gas pipe 50 is opened. The hydrogen stored in the hydrogen supply source 10 is supplied to the stationary fuel cell 20 via the hydrogen gas pipe 50 for the battery. Then, when the stationary fuel cell 20 operates, electric power is supplied to the facility 252, and the facility 252 operates.

Further, when the dispenser 30 and the stationary fuel cell 20 are in operation, the UPS 205a of the power supply device 205 is supplied with the power converted from the AC power of the commercial power source 251 to the DC power by the switching device 204. The secondary battery 205c of the UPS 205a stores the electric power supplied from the switching device 204 to the second wiring 202.

By the way, when a power failure occurs in which the commercial power supply 251 is lost as in the case of a disaster, the AC power supplied to the first solenoid valve 61a, the second solenoid valve 61b, the third solenoid valve 61c, the compressor 101, and the dispenser 30. Is lost. The compressor 101 and the dispenser 30 are stopped, and the hydrogen gas pipe 40 for supply is closed by the first solenoid valve 61a, the second solenoid valve 61b, and the third solenoid valve 61c, so that hydrogen is not supplied to the dispenser 30. It becomes. In addition, the AC power supplied to the solenoid valve 62 for the battery is lost. Since the battery hydrogen gas pipe 50 is closed by the battery electromagnetic valve 62, hydrogen is not supplied to the stationary fuel cell 20 from the hydrogen supply source 10, and the stationary fuel cell 20 stops.

When the commercial power supply 251 is lost, the operator manually operates the three manual valves 91 for supply after sufficiently confirming the safety to open the three bypass pipes 70 for supply, and from the hydrogen supply source 10 to the dispenser 30. Secure a path for hydrogen to flow. In particular, when the supply bypass pipe 70 is opened by manually operating the supply manual valve 91 provided in the supply bypass pipe 70 connected to the third pipe 43, the compression stored in the accumulator 102 is compressed. Hydrogen is supplied to the dispenser 30. Therefore, when the commercial power supply 251 is lost, the dispenser 30 is in a state where hydrogen can be filled in the filling target T.

When the commercial power source 251 is lost, the operator manually operates the battery manual valve 92 to open the battery bypass pipe 80, and secures a path through which hydrogen flows from the hydrogen supply source 10 to the stationary fuel cell 20. Further, the operator restarts the stationary fuel cell 20 by using the electric power of the power storage device 22. At this time, the power storage device 22 mounted on the stationary fuel cell 20 becomes an operating source that enables the stationary fuel cell 20 to generate electricity when the commercial power source 251 is lost. The electric power generated by the stationary fuel cell 20 when the commercial power source 251 is lost is supplied to the facility 252 and also to the switching device 204 via the first wiring 201.

When the commercial power supply 251 is lost, the operator manually operates the switching device 204 so that the first electric circuit of the switching device 204 is electrically connected to the second wiring 202. Therefore, the electric power generated by the stationary fuel cell 20 when the commercial power source 251 is lost is supplied to the UPS 205a via the second wiring 202. The electric power supplied from the stationary fuel cell 20 when the commercial power source 251 is lost is stored in the secondary battery 205c of the UPS 205a, and the electric power stored in the secondary battery 205c is converted into AC electric power by the electric power supply unit 205d. It is supplied to the dispenser 30 via the third wiring 203. That is, not only the electric power stored in the secondary battery of the UPS 205a when a power failure occurs, but also the electric power generated by the stationary fuel cell 20 when the commercial power source 251 is lost is supplied to the dispenser 30 via the UPS 205a.

Upon loss of the commercial power supply 251 the operator conducts a pressure holding test. The operator operates the power supply device 205 of the temporary supply device 200 to operate the controller 205b. If the pressure of hydrogen supplied to the dispenser 30 by the controller 205b is a desired value, a charge permission signal is displayed on the display of the power supply device 205. After confirming the charge permission signal, the operator manually operates the dispenser 30 to supply hydrogen to the filling target T.

The effect of this embodiment will be described.
(1) Even if the supply hydrogen gas pipe 40 and the battery hydrogen gas pipe 50 are closed when the commercial power supply 251 is lost, the supply manual valve 91 and the battery manual valve 92 are manually operated for supply. Hydrogen can be supplied to the dispenser 30 and the stationary fuel cell 20 by opening the bypass pipe 70 and the battery bypass pipe 80 in the open state. Further, when the commercial power source 251 is lost, the stationary fuel cell 20 can be operated by the power storage device 22, and the electric power generated by the stationary fuel cell 20 is supplied from the temporary supply device 200 to the dispenser 30 to operate the dispenser 30. Can be made to. Therefore, hydrogen can be supplied to the filling target T when the commercial power supply 251 is lost.

(2) Hydrogen can be supplied from the accumulator 102 to the dispenser 30 by opening the supply bypass pipe 70 connected to the third pipe 43 by the supply manual valve 91 when the commercial power supply 251 is lost. Therefore, when the commercial power supply 251 is lost, the compressor 101 is stopped, and even if hydrogen is not supplied from the hydrogen supply source 10 to the accumulator 102 via the compressor 101, the high-pressure hydrogen filled in the accumulator 102 is released. It can be supplied to the dispenser 30.

(3) When a portable generator is used as an operating source, it is necessary to prepare for starting the generator after the loss of the commercial power source 251. Therefore, it takes time and is inconvenient.
In that respect, in the present embodiment, the power storage device 22 can be charged in advance with the power generated by the stationary fuel cell 20 when the AC power is supplied from the commercial power source 251. Therefore, when the commercial power source 251 is lost due to a power failure or the like, the stationary fuel cell can be quickly operated by using the electric power of the power storage device 22.

(4) In the present embodiment, hydrogen can be filled in the filling target T from the dispenser 30 even in the event of a disaster. Therefore, for example, the forklift or fuel cell vehicle as the filling target T can be filled with hydrogen, and the forklift or fuel cell vehicle can be self-propelled to a place where electricity is required, such as a disaster evacuation tent. It is possible to easily supply electric power even in a new place.

(5) Since the stationary fuel cell 20 can be operated in the event of a disaster, the operation of the facility 252 can be continued.
The present embodiment can be modified as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

○ The operating source of the stationary fuel cell 20 does not have to be the power storage device 22. For example, it may be a portable generator or the like arranged outside the stationary fuel cell 20. Further, the operating source may be changed in any way as long as it has a configuration in which electric power sufficient to operate the stationary fuel cell 20 can be supplied to the stationary fuel cell 20.

○ The temporary supply device 200 may electrically connect the UPS 205a and the compressor 101. That is, the electric power generated by the stationary fuel cell 20 when the commercial power source 251 is lost may be converted into AC electric power by the electric power supply unit 205d of UPS 205a and supplied to the compressor 101. When the commercial power supply 251 is lost, hydrogen can be supplied from the hydrogen supply source 10 to the dispenser 30 via the accumulator 102. Therefore, even when the commercial power source 251 is lost, not only the hydrogen stored in the accumulator 102 but also the hydrogen stored in the hydrogen supply source 10 can be supplied to the dispenser 30, so that the hydrogen can be supplied to the filling target T. It becomes easier to continue the supply of hydrogen.

○ The accumulator 102 may be omitted. In this case, the supply hydrogen gas pipe 40 is composed of the first pipe 41 and the second pipe 42, and the other end of the second downstream pipe 42b of the second pipe 42 is connected to the dispenser 30. Even with this change, if the power generated by the stationary fuel cell 20 can be supplied to the compressor 101 via the UPS 205a when the commercial power supply 251 is lost, hydrogen is supplied to the dispenser 30 as in the above change example. Hydrogen can be supplied from the source 10.

○ The compressor 101 may be omitted. In this case, the supply hydrogen gas pipe 40 is composed of the first pipe 41, and the other end of the first downstream pipe 41b of the first pipe 41 is connected to the dispenser 30. When changed in this way, the accumulator 102 will serve as a buffer tank, and when the hydrogen supply source 10 needs to be replaced, the valve between the hydrogen supply source 10 and the accumulator 102 is shut off. Then, the hydrogen supply source 10 can be replaced and hydrogen can be filled by the dispenser 30. Since the pressure of hydrogen supplied to the dispenser 30 is the pressure of hydrogen stored in the hydrogen supply source 10, if the filling target T is an industrial vehicle such as a forklift or a fuel cell vehicle, hydrogen is supplied. The pressure of hydrogen stored in the source 10 may be changed to be about the same as the pressure of hydrogen stored in the accumulator 102 of the present embodiment. Further, if the pressure of the hydrogen stored in the hydrogen supply source 10 is not changed, the unit to be filled may be sufficiently filled with the pressure of the hydrogen stored in the hydrogen supply source 10.

The second electric circuit of the switching device 204 is an electric circuit that converts the AC power of the commercial power source 251 into electric power and sends it to the second wiring 202, but the present invention is not limited to this. For example, the second electric circuit may be an electric circuit in which the AC power of the commercial power source 251 is passed through the UPS 205a. When changing in this way, it is preferable to provide a power converter inside the UPS 205a that converts AC power into electric power and stores the changed electric power in a secondary battery.

○ The temporary supply device 200 may be changed to a DCAC inverter. The first wiring 201 is changed so as to electrically connect the stationary fuel cell 20 and the DCAC inverter. The third wiring 203 is changed so as to electrically connect the DCAC inverter and the dispenser 30. The DCAC inverter is a power converter that converts DC power into AC power. Even with such a change, the dispenser 30 can be operated by the electric power generated by the stationary fuel cell 20. In this modification, the first wiring 201 may be changed to the second wiring 202, or the third wiring 203 may be changed to the second wiring 202.

○ In the temporary supply device 200, the DCAC inverter of the above modified example may be mounted on the stationary fuel cell 20, and the electric power generated by the stationary fuel cell 20 may be converted into AC power by the DCAC inverter. In this case, the DCAC inverter and the dispenser 30 are changed so as to be electrically connected.

Even with this change, the electric power generated by the stationary fuel cell 20 can be supplied to the dispenser 30. In this modification, the DCAC inverter may be arranged inside the dispenser 30. That is, the DCAC inverter that converts the electric power generated by the stationary fuel cell 20 into AC electric power may be arranged at any position as long as AC electric power is supplied to the dispenser 30 when the commercial power source 251 is lost. The temporary supply device 200 may have a configuration capable of supplying the electric power generated by the stationary fuel cell 20 to the dispenser 30 when the commercial power source 251 is lost.

○ The filling target T is not limited to industrial vehicles such as forklifts and fuel cell vehicles, and may be any device or unit that requires hydrogen filling.
○ The hydrogen supply source 10 was a curdle, but it may be a hydrogen tank in which hydrogen is stored, or a trailer equipped with a hydrogen cylinder. Further, the hydrogen supply source 10 is a first hydrogen supply source in which hydrogen for supplying hydrogen to the dispenser 30 and a second hydrogen supply in which hydrogen for supplying hydrogen to the stationary fuel cell 20 is stored. It may have a source. In this case, the second hydrogen supply source may store boil-off hydrogen obtained by re-recovering the hydrogen that is exhausted from the hydrogen used in the stationary fuel cell 20, or a hydrogen storage alloy is used. It may be a thing.

Next, the technical idea that can be grasped from the above embodiment and another example will be added below.
(1) The fuel cell and the compressor are electrically connected, and the temporary supply device supplies the hydrogen generated by the fuel cell to the hydrogen supply device and the compressor when the commercial power source is lost. 2. The hydrogen station according to claim 2.

According to this, when the commercial power supply is lost, the supply bypass pipes connected to the first pipe, the second pipe, and the third pipe are opened by the manual valve for supply. Then, since the compressor is operated by the electric power generated by the fuel cell, hydrogen can be supplied from the hydrogen supply source to the hydrogen supply device via the accumulator. Therefore, even when the commercial power supply is lost, not only the hydrogen stored in the accumulator but also the hydrogen stored in the hydrogen supply source can be supplied to the hydrogen supply device, so that the hydrogen supply to the filling target is continued. It becomes easier to do.

1 ... Hydrogen station, 10 ... Hydrogen supply source, 20 ... Stationary fuel cell, 22 ... Power storage device, 30 ... Dispenser, 40 ... Hydrogen gas pipe for supply, 41 ... 1st pipe, 42 ... 2nd pipe, 43 ... No. 3 pipes, 50 ... hydrogen gas pipe for battery, 61 ... electromagnetic valve for supply, 62 ... electromagnetic valve for battery, 70 ... bypass pipe for supply, 80 ... bypass pipe for battery, 91 ... manual valve for supply, 92 ... for battery Manual valve, 101 ... Compressor, 102 ... Accumulator, 200 ... Temporary supply device, 201 ... 1st wiring, 202 ... 2nd wiring, 203 ... 3rd wiring, 251 ... Commercial power supply, T ... Filling target.

Claims (3)

Hydrogen source where hydrogen is stored and
With fuel cells
A hydrogen supply device that supplies hydrogen to the filling target,
A hydrogen gas pipe for supply, which is a pipe for supplying hydrogen stored in the hydrogen supply source to the hydrogen supply device, and a hydrogen gas pipe for supply.
A hydrogen gas pipe for a battery, which is a pipe for supplying hydrogen stored in the hydrogen supply source to the fuel cell,
A valve provided in the supply hydrogen gas pipe that opens the supply hydrogen gas pipe when power is supplied and closes the supply hydrogen gas pipe when power is not supplied. With a certain supply solenoid valve
A valve provided in the hydrogen gas pipe for a battery that opens the hydrogen gas pipe for a battery when power is supplied and closes the hydrogen gas pipe for a battery when power is not supplied. A hydrogen station equipped with an electromagnetic valve for a battery.
A supply bypass pipe that is connected to the supply hydrogen gas pipe and connects the upstream and downstream of the supply solenoid valve in the hydrogen supply direction of the supply hydrogen gas pipe.
A battery bypass pipe that is connected to the battery hydrogen gas pipe and connects the upstream and downstream of the battery electromagnetic valve in the hydrogen supply direction of the battery hydrogen gas pipe.
A manual valve for supply, which is provided on the bypass pipe for supply and manually opens and closes the bypass pipe for supply.
A manual valve for the battery provided in the bypass pipe for the battery and manually opening and closing the bypass pipe for the battery.
An operating source that enables the fuel cell to generate electricity in the event of loss of commercial power,
The fuel cell and the hydrogen supply device are configured to be electrically connectable, and include a temporary supply device that supplies at least the electric power generated by the fuel cell to the hydrogen supply device when the commercial power source is lost. A featured hydrogen station. A compressor that delivers the hydrogen from the hydrogen supply source in a compressed state, and
A pressure accumulator for storing hydrogen sent from the compressor is provided.
The hydrogen gas pipe for supply is
A first pipe for supplying hydrogen stored in the hydrogen supply source to the compressor, and
A second pipe for supplying hydrogen sent from the compressor to the accumulator, and
It has a third pipe for supplying the hydrogen stored in the accumulator to the hydrogen supply device.
The supply solenoid valve is provided in each of the first pipe, the second pipe, and the third pipe.
The supply bypass pipe is connected to each of the first pipe, the second pipe, and the third pipe, and in the hydrogen supply direction of the first pipe, the second pipe, and the third pipe. The hydrogen station according to claim 1, wherein the upstream and downstream of the supply electromagnetic valve provided in each of the first pipe, the second pipe, and the third pipe are connected. The hydrogen station according to claim 1 or 2, wherein the operating source is a power storage device mounted on the fuel cell.

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