JP2018060696A - Package-type fuel cell power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package-type fuel cell power generator that has excellent installation property at a demand location, makes it possible to easily perform fuel exchange, and uses hydrogen gas as fuel.SOLUTION: A package 1, a package-type fuel cell power generator independently installed, for example, outdoors to generate power using hydrogen gas as fuel, comprises: a plurality of hydrogen gas cylinders 2; a cylinder bundle 21 to which the plurality of hydrogen gas cylinders 2 are connected; a hydrogen generation apparatus 3 for adjusting a flow rate and pressure of hydrogen supplied through the cylinder bundle 21; a power generation unit 4 for making air and hydrogen supplied from the hydrogen generation apparatus 3 react to each other to generate power; and a power distribution board 5 for making it possible to transmit the power generated by the power generation unit 4 to the outside. The inside of the package 1 is segmented into a storage chamber 13 in which the hydrogen gas cylinders 2 are installed and an apparatus chamber 14 in which the hydrogen generation apparatus 3, the power generation unit 4, and the power distribution board 5 are installed. On the storage chamber 13 is provided a door 11 that can be opened/closed from the outside. The storage chamber 13 has a semi-outdoor structure having no floor surface.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaged fuel cell power generator using hydrogen gas as a fuel.

  In recent years, it has been possible to take measures against air pollution and global warming due to carbon dioxide without generating harmful substances such as NOX and SOX, and it can be operated with low noise. Is attracting attention. This fuel cell power generator is a system that converts the chemical energy of the fuel directly into electricity. In particular, fuel cell power generators that use hydrogen gas as fuel can be purified from inexhaustible water and compounds on the earth. High energy efficiency is possible, and CO2 and harmful substances are not emitted when converted into electricity. Furthermore, since hydrogen gas is less expensive than liquefied hydrogen, an off-site station type fuel cell power generator capable of supplying hydrogen gas at low cost by filling a cylinder with high-pressure hydrogen gas has been put into practical use.

  As such a fuel cell power generation device using hydrogen gas as a fuel, for example, a package type fuel cell power generation device described in Patent Document 1 is known. These package-type fuel cell power generators can be installed easily by storing the components and auxiliary equipment necessary for power generation inside the package and placing them at the place of demand. Yes. Further, Patent Document 2 proposes a fuel cell system in which portability is improved by dividing constituent devices and connecting wiring and piping between the divided devices.

JP-A-8-31436 JP 2002-203584 A

  However, the fuel cell power generator described in Patent Document 1 has not been paid attention in replacement and maintenance of the hydrogen gas cylinder, and there is still room for improvement. Moreover, since the fuel cell power generation device described in Patent Document 2 requires portability, the robustness of the device is lowered and cannot be used permanently. Moreover, the package-type fuel cell power generator that has been put to practical use has the fuel itself hermetically mounted inside the package, and requires labor to replace the fuel.

  In view of the above problems, the present inventors have provided a package-type fuel cell power generation apparatus that uses hydrogen gas as a fuel, which is excellent in installability in demand areas and can be easily replaced with fuel.

  Therefore, the fuel cell power generation device of the present invention is a package type fuel cell power generation device that is independently installed outdoors and generates power using hydrogen gas as fuel, and includes a plurality of hydrogen gas cylinders and a plurality of hydrogen gas cylinders in the package. A curdle to which a hydrogen gas cylinder is connected; a hydrogen generator that adjusts the flow rate and pressure of hydrogen supplied through the curdle; and a power generation unit that generates electricity by reacting hydrogen and air supplied from the hydrogen generator. A distribution board that allows the power generated by the power generation unit to be transmitted to the outside, and the inside of the package is provided with a storage room in which the hydrogen gas cylinder is installed, the hydrogen generation device, the power generation unit, and the distribution board The first feature is that the storage compartment is provided with a door that can be opened and closed from the outside, and the storage compartment is not provided with a floor surface. To.

  In addition, the hydrogen generation device was provided with a hydrogen gas control valve that controls the flow rate and / or pressure of hydrogen, a shut-off valve that turns the hydrogen gas flow path on and off, and a control device that controls these operations. Is the second feature.

  Furthermore, a third feature is that the control device has a timer function and is configured to operate the hydrogen gas control valve based on a preset time.

The fuel cell power generator according to the present invention has the following effects.
(1) The hydrogen gas cylinder is partitioned into a storage room in which a hydrogen gas cylinder is installed and an equipment room in which equipment is installed, and the storage room can be opened and closed by an open / close door from the outside. In addition, it is possible to prevent collision or contact with equipment or the like at the time of replacement, thereby improving safety.
(2) Since the floor is not provided in the storage room and the hydrogen gas cylinder is directly installed on the ground, it can be replaced without lifting the hydrogen gas cylinder carried by the chassis or the like.
(3) Since no foundation work is required when installing in a demand area, it can be installed in a short period of time and at a low cost.
(4) Since the shut-off valve is provided in the hydrogen gas flow path, it is possible to prevent hydrogen from leaking out during replacement of the hydrogen gas cylinder.
(5) Since it has a timer function and power generation can be controlled in a timely manner, power generation can be performed systematically only by setting the timer.

1 is a perspective view showing a packaged fuel cell power generator 1 according to the present invention. It is a top view of FIG. 2 is a flowchart illustrating flow control of hydrogen gas in the packaged fuel cell power generator 1 shown in FIG.

  Hereinafter, the packaged fuel cell power generator 1 according to the present invention will be described with reference to the drawings. However, it goes without saying that the present invention is not limited to this embodiment. 1 is a perspective view showing a packaged fuel cell power generator 1 according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a flow control of hydrogen gas in the packaged fuel cell power generator 1 shown in FIG. It is a flowchart to explain. As shown in FIG. 1, a packaged fuel cell power generator 1 according to the present invention is an off-site station type fuel cell power generator that is independently installed outdoors.

  The exterior of the package fuel cell power generator 1 is configured by placing a plurality of connected metal roofed cases on a metal support base 19 arranged on the ground. A plurality of open / close doors 11 and 12 are provided on the side surface of the packaged fuel cell power generator 1. A plurality of ventilation openings 15 and a ventilation fan (not shown) are provided at the upper part of each open / close door 11, 12, so that hydrogen gas does not stay in the packaged fuel cell power generator 1.

  As shown in FIG. 2, the packaged fuel cell power generator 1 is divided into a storage chamber 13 and an equipment chamber 14 provided on both sides by a wall body 16, and the storage chamber 13 includes a plurality of hydrogen gas cylinders 2. However, the hydrogen generation device 3, the power generation unit 4, and the switchboard 5 are accommodated in the device room 14. The packaged fuel cell power generator 1 converts the hydrogen gas in the hydrogen gas cylinder 2 into an appropriate flow rate and pressure by the hydrogen generator 3 and sends it to the power generation unit 4, which reacts oxygen and hydrogen gas in the atmosphere with the power generation unit 4. The power is generated and the generated power can be transmitted from the switchboard 5 to the outside.

  The hydrogen gas cylinder 2 is a metal cylinder, is filled with hydrogen gas compressed at a high pressure of 14.7 MPa, and is generally used as a fuel for a portable fuel cell. In the present embodiment, nine hydrogen gas cylinders 2 are accommodated in each storage chamber 13, that is, 18 in total in two packages in the packaged fuel cell power generator 1. The plurality of hydrogen gas cylinders 2 are detachably connected to the pipe 22a, and the open / close door 11 is opened and closed so that the used hydrogen gas cylinders 2 themselves can be replaced. The bottom surface of the hydrogen gas cylinder 2, that is, the bottom surface of the storage chamber 13 is not provided with a flooring material and has a semi-outdoor structure, and can be easily replaced without lifting the hydrogen gas cylinder 2 transported by a carriage or the like. it can.

  The pipes 22a connected to the hydrogen gas cylinders 2 are connected to a so-called curdle 21 in which the cylinders of the pipes 22a are gathered together. The curdle 21 and the hydrogen generation device 3 are connected by a pipe 22 b, and two systems of hydrogen gas are supplied to the hydrogen generation device 3.

  As shown in FIG. 2, the hydrogen generator 3 includes a hydrogen gas regulating valve 31, a shutoff valve 32, and a control device (not shown). The hydrogen generator 3 takes in the hydrogen gas from the plurality of hydrogen gas cylinders 2 connected via the pipe 22 and the curdle 21 and plays a role of adjusting the hydrogen gas to a flow rate and pressure optimal for power generation. Therefore, the control device controls the flow rate and pressure of the hydrogen gas by feeding back the flow rate information from the hydrogen gas regulating valve 31 so that the appropriate flow rate and pressure of hydrogen gas for efficient power generation can be constantly supplied to the power generation unit 4. Control software is installed.

  The hydrogen gas regulating valve 31 measures the flow rate of the hydrogen gas and adjusts it to an appropriate flow rate and pressure of the hydrogen gas for efficient power generation. The measured flow rate is transmitted to the control device via a connected communication cable (not shown). Moreover, the flow rate instruction | indication from a control apparatus is received via the connected communication cable (not shown), and a flow rate and a pressure are adjusted.

  The shutoff valve 32 plays a role of shutting off the supply of hydrogen gas to the power generation unit 4 by opening and closing a built-in electromagnetic valve. The shut-off valve 32 is connected to the control device via a communication cable, and is configured to operate upon receiving an open / close command from the control device. For example, when the hydrogen gas cylinder 2 is exchanged, the shutoff valve 32 of the system can be closed to prevent hydrogen leakage from another system.

  The control device is provided with control software having a timer function, and controls the hydrogen gas regulating valve 31 by calculating a flow rate suitable for power generation based on a preset time for the start of flow rate adjustment or the end of flow rate adjustment and / or. And adjust the flow rate of hydrogen gas. More specifically, the flow rate of hydrogen gas is controlled by the steps shown in FIG. First, it is determined whether or not it is a designated time to start the flow rate adjustment (step S1). If it is the designated time, a flow rate adjustment instruction is transmitted to the hydrogen gas regulating valve 31 (step S2). If this is the case (N in step S1), it is determined whether or not it is a designated time for ending the flow rate adjustment (step S3). . Therefore, for example, the nighttime hydrogen gas flow rate can be reduced from the daytime to reduce the power generation amount itself.

  The power generation unit 4 generates electric power by reacting the hydrogen gas supplied from the hydrogen generator 3 with the air in the packaged fuel cell power generation apparatus 1 and / or outside air. The power generation unit 4 includes, for example, a polymer fuel cell stack, an air blower that sends air to the fuel cell, a converter that adjusts the generated voltage, a radiator that releases heat generated in the fuel cell stack, a power extraction cable, etc. In addition, a control device for controlling the operation of these devices, an operation panel, and a built-in battery as a power source thereof are installed, and it is sufficient that hydrogen and air can be reacted to generate electric power. There is no particular limitation. When the operation panel is mounted on the power generation unit 4, it is preferable that the operation surface is provided at a position where the operation surface can be operated from the outside of the packaged fuel cell power generator 1 when the door 12 is opened.

  The switchboard 5 is electrically connected to the power generation unit 4 via an electric cable or the like, and transmits the generated power to the outside of the packaged fuel cell power generator 1. Therefore, the switchboard 5 includes at least an inverter circuit that converts a direct current transmitted from the power generation unit 4 into an alternating current, a 100 V and / or 200 V outlet to which an external device can be connected, and a ventilation fan in the packaged fuel cell power generator 1. It is preferable to include a control device for controlling. In addition, when hydrogen leaks into the packaged fuel cell power generator 1, a hydrogen detection means or an operation stop command for the packaged fuel cell power generator 1 based on the detected hydrogen concentration so that the operation of the power generation unit 4 can be stopped. More preferably, a circuit or the like for transmitting is provided.

  Since the package type fuel cell power generation device 1 of the present invention having the above-described configuration is installed in a package instead of a building structure, foundation work for the building structure is unnecessary, and it is excellent in installation in a demand area. Moreover, since the inside of the package is partitioned into a space between the storage room 13 and the equipment room 14 and a flooring material is not provided in the storage room 13 and a semi-outdoor structure is provided, the replacement can be easily performed without lifting the hydrogen gas cylinder 2 onto the floor. Can do.

DESCRIPTION OF SYMBOLS 1 Package type fuel cell power generator 2 Hydrogen gas cylinder 3 Hydrogen generator 4 Power generation unit 5 Switchboard 11,12 Open / close door 13 Storage room 14 Equipment room 15 Ventilation port 16 Wall body 19 Support base 21 Cardle 22 Piping 31 Hydrogen gas regulating valve 32 Shut off valve

Claims (3)

  A package-type fuel cell power generator that is installed outdoors and generates electricity using hydrogen gas as a fuel, wherein a plurality of hydrogen gas cylinders, a curdle to which a plurality of hydrogen gas cylinders are connected, and the curdle A hydrogen generating device that adjusts the flow rate and pressure of hydrogen supplied through the power generation unit, a power generation unit that generates power by reacting hydrogen and air supplied from the hydrogen generating device, and power generated by the power generation unit A power distribution panel that can transmit power to the power supply, and the package is partitioned into a storage room in which the hydrogen gas cylinder is installed, a hydrogen generation device, the power generation unit, and a device room in which the power distribution panel is installed, and the storage A package-type fuel cell power generator characterized in that a chamber is provided with a door that can be opened and closed from the outside, and the storage chamber is not provided with a floor.   The hydrogen generation device includes a hydrogen gas control valve that controls the flow rate and / or pressure of hydrogen, a shut-off valve that turns on and off the flow path of hydrogen gas, and a control device that controls these operations. The package-type fuel cell power generator according to claim 1.   The package-type fuel cell power generator according to claim 2, wherein the control device has a timer function and is configured to operate a hydrogen gas control valve based on a preset time.

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