WO2022059649A1 - Dispositif de remplissage de gaz - Google Patents

Dispositif de remplissage de gaz Download PDF

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Publication number
WO2022059649A1
WO2022059649A1 PCT/JP2021/033562 JP2021033562W WO2022059649A1 WO 2022059649 A1 WO2022059649 A1 WO 2022059649A1 JP 2021033562 W JP2021033562 W JP 2021033562W WO 2022059649 A1 WO2022059649 A1 WO 2022059649A1
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WO
WIPO (PCT)
Prior art keywords
filling
valve
gas
nozzle
switching valve
Prior art date
Application number
PCT/JP2021/033562
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English (en)
Japanese (ja)
Inventor
稔 田邊
Original Assignee
トキコシステムソリューションズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by トキコシステムソリューションズ株式会社 filed Critical トキコシステムソリューションズ株式会社
Priority to JP2022550552A priority Critical patent/JP7316462B2/ja
Publication of WO2022059649A1 publication Critical patent/WO2022059649A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the present disclosure relates to a gas filling device that fills a filled tank of a vehicle with a fuel gas such as hydrogen gas, for example.
  • Patent Document 1 describes a hydrogen gas filling device that fills a filled tank (fuel tank) mounted on a vehicle such as a fuel cell vehicle with hydrogen gas in a high pressure state.
  • the hydrogen gas filling device of Patent Document 1 is connected to a pressure accumulator in which hydrogen gas is stored in advance via a gas supply path, and holds a filling nozzle for filling the filled tank with hydrogen gas and a filling nozzle.
  • a holding part for this purpose an on-off valve that is provided in the gas supply path and supplies hydrogen gas in the accumulator to the filling nozzle by opening the valve, and an on-off valve that can be opened and closed to open and close the tank to be filled. It is provided with a filling control means for controlling the supply of hydrogen gas.
  • a fuel gas filling device containing hydrogen gas requires maintenance of the gas supply path and filling nozzle in order to maintain its performance.
  • the on-off valve opens and the fuel gas is discharged from the filling nozzle through the gas supply path when the fuel gas filling start operation is mistakenly performed during maintenance. .. Therefore, in order to prevent the fuel gas from being discharged from the filling nozzle during maintenance, it is conceivable to provide a switching valve for switching the opening and closing in the gas supply path in addition to the on-off valve.
  • the switching valve is simply provided, the maintenance staff may not be able to visually grasp the open / closed state of the switching valve.
  • An object of the embodiment of the present invention is to provide a gas filling device capable of visually grasping the open / closed state of a switching valve by a person in charge of maintenance.
  • a gas supply path to which the upstream side is connected to a pressure accumulator in which fuel gas is accumulated and a gas supply path connected to the downstream side of the gas supply path are connected to a filled tank mounted on a vehicle.
  • the filling nozzle, a supply control valve provided in the middle of the gas supply path and supplying fuel gas in the accumulator to the filling nozzle by opening the valve, and the supply control valve are controlled to open and close.
  • a gas filling device configured to include a filling control means for controlling the supply of the fuel gas to the tank to be filled, a switching valve provided in the gas supply path and switching an open / closed state in the gas supply path.
  • the switching valve is provided with a display unit for displaying the switching state of the switching valve.
  • the person in charge of maintenance can visually grasp the open / closed state of the switching valve.
  • a hydrogen gas filling device for a vehicle that fills a filled tank of a vehicle with hydrogen gas will be taken as an example, and will be described with reference to the attached drawings.
  • the hydrogen gas filling device 1 fills a filled tank 32, which is a fuel tank of a vehicle 31 such as a fuel cell vehicle, with hydrogen gas (fuel gas) in a compressed state.
  • the hydrogen gas filling device 1 for a vehicle is installed in, for example, a facility (fuel supply station) called a hydrogen gas supply station.
  • the hydrogen gas filling device 1 includes a gas accumulator 2 for accumulating hydrogen gas compressed to a high pressure, and a dispenser unit 3 as a filling mechanism for filling the filled tank 32 of the vehicle 31 with hydrogen gas from the gas accumulator 2.
  • a gas supply pipeline 5 extending from the gas accumulator 2 to the inside of the dispenser housing 4 of the dispenser unit 3 is included.
  • the gas accumulator 2 is a hydrogen gas supply source that stores hydrogen gas compressed to a high pressure. That is, hydrogen gas as a fuel gas is accumulated in the gas accumulator 2 as the accumulator.
  • the gas accumulator 2 is connected to the dispenser unit 3.
  • the gas accumulator 2 constitutes a gas storage unit for storing hydrogen gas compressed at high pressure on the upstream side of the gas supply pipeline 5.
  • the dispenser unit 3 includes a dispenser housing 4, filling hoses 6A, 6B, filling nozzles 7A, 7B, flow rate adjusting valve 12, shutoff valve 13, heat exchanger 16, flow meter 17, pressure sensor 18, temperature sensor 19, and filling start. It includes a switch 20, a filling stop switch 21, a decompression valve 23, a control device 24, and nozzle hooks 26A and 26B.
  • the dispenser housing 4 constitutes a building that forms the outer shape of the dispenser unit 3, and is formed in a rectangular parallelepiped shape that is long in the upward and downward directions, for example.
  • a gas supply pipe line 5 As shown in FIG. 2, a gas supply pipe line 5, a flow control valve 12, a isolation valve 13, a heat exchanger 16, a pressure sensor 18, a temperature sensor 19, a control device 24, and the like are housed in the dispenser housing 4.
  • the dispenser housing 4 is provided with a display unit 25 such as a liquid crystal monitor and a liquid crystal touch panel at a position easily visible to a worker (staff) or a user (customer) who performs a hydrogen gas filling operation.
  • a first nozzle hook 26A to which the first filling nozzle 7A is detachably hooked and a second nozzle hook 26B to which the second filling nozzle 7B is detachably hooked are provided on the outside of the dispenser housing 4.
  • the nozzle hooks 26A and 26B correspond to holding portions for holding the filling nozzles 7A and 7B.
  • a configuration having a plurality of (more specifically, two) filling nozzles 7A and 7B in one dispenser unit 3 will be described as an example, but for example, one filling in one dispenser unit will be described. It may be configured to have a nozzle. Further, for example, one dispenser unit may have three or more filling nozzles.
  • the gas supply pipeline 5 is arranged in the dispenser housing 4, and supplies hydrogen gas in a pressurized state from the gas accumulator 2 toward the filling hoses 6A and 6B.
  • the upstream side of the gas supply pipeline 5 is connected to the gas accumulator 2. That is, in the gas supply pipeline 5, the gas accumulator 2 side is the upstream side, and the filling hoses 6A and 6B sides are the downstream side.
  • the downstream side of the gas supply pipeline 5 is branched into a plurality of, for example, two paths.
  • the gas supply pipe 5 is the first supply on the downstream side branched at the position of the main supply pipe 5A on the upstream side on the gas accumulator 2 side and the branch portion 5D at the downstream end of the main supply pipe 5A. It has a pipeline 5B and a second supply pipeline 5C.
  • the gas supply line 5 is branched into the first supply line 5B and the second supply line 5C on the way.
  • a first filling hose 6A extending to the outside of the dispenser housing 4 is connected to a downstream end of the gas supply pipe 5, more specifically, a downstream end of the first supply pipe 5B.
  • a second filling hose 6B extending to the outside of the dispenser housing 4 is connected to the downstream end of the second supply pipe 5C.
  • the filling hoses 6A and 6B flexible pressure resistant hoses are used.
  • the gas supply line 5 as the gas supply path includes the first supply line 5B and the second supply line 5C which are a plurality of paths.
  • maintenance related to one hydrogen gas filling path for example, maintenance of the first supply pipe line 5B, the first filling hose 6A, the first filling nozzle 7A, the first emergency disconnection coupling 8A, and the first nozzle hook 26A).
  • the hydrogen gas can be filled by using the other hydrogen gas filling path (for example, the second supply pipe line 5C, the second filling hose 6B, the second filling nozzle 7B, etc.). ..
  • the base end side of the filling hoses 6A and 6B is connected to the downstream side of the gas supply pipeline 5. That is, the base end side of the first filling hose 6A is connected to the downstream side of the first supply line 5B, and the base end side of the second filling hose 6B is connected to the downstream side of the second supply line 5C. There is. At the tip of the first filling hose 6A, a first filling nozzle 7A connected to a tank to be filled 32 mounted on the vehicle 31 is provided. At the tip of the second filling hose 6B, a second filling nozzle 7B connected to the filled tank 32 mounted on the vehicle 31 is provided.
  • a first emergency withdrawal coupling 8A is provided in the middle of the first filling hose 6A
  • a second emergency withdrawal coupling 8B is provided in the middle of the second filling hose 6B.
  • “1st filling hose 6A, 1st filling nozzle 7A and 1st emergency disconnection coupling 8A” and “2nd filling hose 6B, 2nd filling nozzle 7B and 2nd emergency disconnection coupling 8B” are the first supply pipes.
  • the configuration is the same except that it differs depending on whether it is connected to the 5B or the second supply line 5C.
  • the filling hoses 6A and 6B together with the gas supply pipeline 5 form a hydrogen gas filling path (fuel gas filling path).
  • the hydrogen gas filling path is a path (pipeline) for filling the filled tank 32 of the vehicle 31 traveling on hydrogen gas as fuel with hydrogen gas.
  • the filling nozzles 7A and 7B are connected to the downstream side of the gas supply pipeline 5 via the filling hoses 6A and 6B.
  • the filling nozzles 7A and 7B are connected to the tip ends of the filling hoses 6A and 6B in an airtight state, and form a so-called filling coupling.
  • the filling nozzles 7A and 7B are connected to the dispenser housing 4 (more specifically, the gas supply pipeline 5) via the filling hoses 6A and 6B.
  • a valve portion that can be switched between an "open position" that permits the flow of hydrogen gas and an "closed position” that blocks the flow of hydrogen gas is provided inside the filling nozzles 7A and 7B.
  • the filling nozzles 7A and 7B may be provided with a check valve in place of the valve portion or together with the valve portion.
  • the check valve allows the flow of hydrogen gas from the filling nozzles 7A and 7B to the filled tank 32 of the vehicle 31 and blocks the flow of hydrogen gas from the filled tank 32 to the filling nozzles 7A and 7B.
  • the tip side of the filling nozzles 7A and 7B is a connection coupler, and is detachably connected to the filling port 32A which is the connection port of the tank 32 to be filled. That is, when the connecting coupler of the filling nozzles 7A and 7B supplies hydrogen gas to the filled tank 32 of the vehicle 31 through the pipeline (not shown) in the filling nozzles 7A and 7B, the filling port of the filled tank 32 It is detachably connected to 32A in an airtight state. Further, the filling nozzles 7A and 7B are provided with a lock mechanism (not shown) that is detachably locked to the filling port 32A of the tank to be filled 32. As a result, the filling nozzles 7A and 7B can be prevented from being inadvertently detached from the filling port 32A when the hydrogen gas is filled.
  • the gas supply pipeline 5 the filling hoses 6A, 6B and the filling nozzles 7A, 7B are locked with respect to the filling port 32A of the tank 32 to be filled by the locking mechanism.
  • the tank 32 to be filled of the vehicle 31 is filled through the filling nozzles 7A and 7B. That is, the hydrogen gas filling device 1 is provided with filling nozzles 7A and 7B, and the filling tank 32 of the vehicle 31 is filled with hydrogen gas using the filling nozzles 7A and 7B.
  • the filling nozzles 7A and 7B are held by the nozzle hooks 26A and 26B when the filling operation is not performed.
  • the dispenser unit 3 has an inlet valve 11 located in the middle of the gas supply pipeline 5 (main supply pipeline 5A), for example, an inlet valve 11 which is manually opened and closed, and an inlet.
  • a flow rate adjusting valve 12 as a control valve that is connected to the downstream side of the valve 11 and is opened and closed by the control device 24 to control the flow rate of fuel flowing through the gas supply pipeline 5 in an adjustable manner, and a flow rate adjusting valve.
  • a isolation valve 13 which is an electromagnetic or pneumatically operated valve device connected to the downstream side of the 12 is provided.
  • the arrangement (order of installation) of the flow meter 17, the flow rate adjusting valve 12, and the isolation valve 13 provided from the upstream side to the downstream side of the gas supply pipeline 5 is limited to the order shown in FIG. It is not something that will be done.
  • the inlet valve 11 is located in the dispenser housing 4 and is provided in the middle of the gas supply pipe line 5 (main supply pipe line 5A).
  • the inlet valve 11 is attached as needed, and may be removed if unnecessary.
  • the flow rate adjusting valve 12 and the isolation valve 13 constitute a control device for controlling the flow rate and pressure of hydrogen gas flowing through the gas supply line 5.
  • the flow meter 17, the pressure sensor 18, and the temperature sensor 19 constitute a measuring device for measuring the flow rate, pressure, and temperature of hydrogen gas flowing through the gas supply line 5.
  • the flow rate adjusting valve 12 provided in the dispenser unit 3 is, for example, a pneumatically operated valve device, which is opened by supplying air and controls the control pressure (air pressure) by a control signal to increase the valve opening degree. It will be adjusted.
  • the flow rate adjusting valve 12 is controlled to an arbitrary valve opening degree by a command based on the control program of the control device 24, and variably controls the flow rate of hydrogen gas flowing in the gas supply pipeline 5 and the hydrogen gas pressure.
  • the isolation valve 13 is an electromagnetic or pneumatically operated valve device provided in the middle of the gas supply line 5 (main supply line 5A) (for example, between the cooler 14 and the pressure sensor 18). ..
  • the shutoff valve 13 is opened and closed based on a control signal from the control device 24 to allow or shut off the flow of hydrogen gas (fuel gas, filling gas) in the gas supply pipeline 5.
  • the flow rate adjusting valve 12 and the control device 24 are controlled.
  • the flow rate adjusting valve 12 and the isolation valve 13 are provided in the middle of the gas supply line 5 (main supply line 5A), and by opening the valve, the hydrogen gas in the gas accumulator 2 is filled into the filling nozzles 7A and 7B.
  • the supply control valve that supplies.
  • the cooler 14 is a cooling device for cooling the hydrogen gas flowing in the gas supply pipe line 5.
  • the cooler 14 cools the hydrogen gas at a position in the middle of the gas supply pipe 5 in order to suppress the temperature rise of the hydrogen gas filled in the tank 32 to be filled.
  • the cooler 14 is located between the flow control valve 12 and the isolation valve 13 and is provided in the heat exchanger 16 and the heat exchanger 16 provided in the middle of the gas supply line 5 (main supply line 5A). It is connected via the refrigerant pipelines 15A and 15B, and includes, for example, a chiller unit (not shown) provided with a drive mechanism such as a compressor or a pump.
  • the cooler 14 has a refrigerant conduit 15A on the supply side for supplying a refrigerant (for example, a liquid containing ethylene glycol or the like) from the chiller unit to the heat exchanger 16 side, and the heat exchanger 16 to the chiller unit side.
  • a refrigerant for example, a liquid containing ethylene glycol or the like
  • a return-side refrigerant conduit 15B for returning the refrigerant after heat exchange is provided.
  • the chiller unit circulates the refrigerant between the heat exchanger 16 and the refrigerant pipes 15A and 15B.
  • the heat exchanger 16 of the cooler 14 exchanges heat between the hydrogen gas flowing in the gas supply pipe line 5 and the refrigerant, and changes the temperature of the hydrogen gas supplied to the filling hoses 6A and 6B.
  • the temperature is lowered to the specified temperature (for example, ⁇ 33 to ⁇ 40 ° C.).
  • a corioli-type flow meter 17 is provided, which is located in the middle of the gas supply line 5 (main supply line 5A) and measures the mass flow rate of the fluid to be measured.
  • the flow meter 17 measures, for example, the flow rate (mass flow rate) of hydrogen gas flowing in the gas supply pipeline 5 between the inlet valve 11 and the flow rate adjusting valve 12, and transfers the measurement result (detection signal) to the control device 24.
  • the control device 24 calculates the amount of hydrogen gas filled in the filled tank 32 of the vehicle 31, and displays the amount of hydrogen gas fuel discharged (corresponding to the amount of refueling) on the display unit 25 or the like. As a result, for example, the display content is notified to the customer or the like.
  • the pressure sensor 18 is provided in the gas supply line 5 (main supply line 5A) on the downstream side (that is, the filling nozzles 7A, 7B side) of the shutoff valve 13.
  • the pressure sensor 18 detects the pressure of hydrogen gas supplied from the gas accumulator 2 (that is, the pressure of the tank 32 to be filled or the pressure in the middle of the pipeline substantially corresponding to the pressure in the tank 32 to be filled).
  • the pressure sensor 18 measures the pressure in the gas supply pipe line 5 in the vicinity of the filling nozzles 7A and 7B, and outputs a detection signal corresponding to the measured pressure to the control device 24.
  • the temperature sensor 19 is located between the shutoff valve 13 and the pressure sensor 18 and is provided in the middle of the gas supply line 5 (main supply line 5A).
  • the temperature sensor 19 detects the temperature of the hydrogen gas flowing in the gas supply pipe 5, and outputs the detection result (detection signal) to the control device 24.
  • the arrangement relationship between the temperature sensor 19 and the pressure sensor 18 is not limited to the arrangement shown in FIG. 2, and may be, for example, opposite to each other. Further, for example, a temperature sensor 19 and a pressure sensor 18 may be provided in each of the first supply line 5B and the second supply line 5C, respectively.
  • the filling start switch 20 and the filling stop switch 21 are provided, for example, on the front side of the dispenser housing 4.
  • the filling start switch 20 and the filling stop switch 21 are switches that can be manually operated by, for example, an operator of a fuel supply station (hydrogen station).
  • the filling start switch 20 is operated when starting filling of hydrogen gas.
  • the filling stop switch 21 is operated when the filling of the gas is stopped during the filling of the hydrogen gas.
  • the filling start switch 20 and the filling stop switch 21 output signals according to the operating state to the control device 24, respectively. As a result, the control device 24 opens or closes the isolation valve 13 in response to these signals.
  • a decompression pipe 22 for depressurizing the gas pressure is provided branched from the filling hoses 6A and 6B. ..
  • a decompression valve 23 which is an electromagnetic or pneumatically operated valve device, is provided. The decompression valve 23 opens based on a signal from the control device 24 when the hydrogen gas filling operation using the filling hoses 6A and 6B (filling nozzles 7A and 7B) is completed and the isolation valve 13 is closed. The valve is controlled.
  • the decompression valve 23 is temporarily opened to open the tip end side of the decompression pipeline 22 to the atmosphere.
  • the hydrogen gas on the filling hoses 6A and 6B is discharged to the outside, and the pressure in the filling hoses 6A and 6B is reduced to the atmospheric pressure level.
  • the filling nozzles 7A and 7B can be removed from the filling port 32A of the tank to be filled 32.
  • the control device 24 constitutes a controller (control unit) that controls the flow rate adjusting valve 12, the isolation valve 13, the depressurizing valve 23, and the like.
  • the control device 24 controls the fuel supply to the tank to be filled 32 to be filled by controlling the flow rate adjusting valve 12 and the isolation valve 13. That is, the control device 24 constitutes a filling control means for controlling the supply of hydrogen gas to the filled tank 32 of the vehicle 31 by controlling the opening and closing of the flow rate adjusting valve 12 and the isolation valve 13, which are supply control valves.
  • the control device 24 includes, for example, a microcomputer including a CPU, a memory 24A, a timer, and the like. In the memory 24A of the control device 24, for example, a processing program for executing the processing flow shown in FIG. 6 described later, that is, a program for filling control processing and the like are stored.
  • a flow meter 17, a pressure sensor 18, a temperature sensor 19, a filling start switch 20, a filling stop switch 21, nozzle detectors 27A, 27B, limit switches 47, 47, etc. are connected to the input side of the control device 24.
  • the output side of the control device 24 is connected to the flow rate adjusting valve 12, the isolation valve 13, the depressurizing valve 23, the display unit 25, and the like.
  • the display unit 25 is provided on the front side of the dispenser housing 4.
  • the display unit 25 is arranged at a height position that is easily visible to the operator performing the hydrogen gas filling operation, and displays information necessary for the hydrogen gas filling operation.
  • the display unit 25 is composed of, for example, a liquid crystal monitor, a liquid crystal touch panel, or the like.
  • operation units such as a filling start switch 20 and a filling stop switch 21 are provided on the front surface side of the dispenser housing 4.
  • the nozzle hooks 26A and 26B are provided, for example, on the side surface side of the dispenser housing 4.
  • the first filling nozzle 7A is detachably hooked to the first nozzle hook 26A
  • the second filling nozzle 7B is detachably hooked to the second nozzle hook 26B.
  • the filling nozzles 7A and 7B are hooked to the nozzle hooks 26A and 26B when the hydrogen gas is not filled (that is, the waiting time for the filling work).
  • the filling nozzles 7A and 7B are removed from the nozzle hooks 26A and 26B by the filling work operator.
  • the nozzle hooks 26A and 26B correspond to a nozzle accommodating portion for accommodating the filling nozzles 7A and 7B on the side surface side of the dispenser housing 4.
  • Nozzle detectors 27A and 27B that detect whether or not the filling nozzles 7A and 7B are hooked on the nozzle hooks 26A and 26B (in other words, whether or not the filling nozzles 7A and 7B are housed in the nozzle accommodating portion). Is provided.
  • the nozzle detectors 27A and 27B are composed of, for example, a two-position switching type switch. The nozzle detectors 27A and 27B are connected to the control device 24.
  • the first nozzle detector 27A is pushed by the first filling nozzle 7A and switched to the ON state.
  • the first nozzle detector 27A switches to the OFF state when the first filling nozzle 7A is taken out (or removed) from the nozzle hook 26A.
  • the second nozzle detector 27B is switched to the ON state when, for example, the second filling nozzle 7B is hooked on the second nozzle hook 26B, and the second filling nozzle 7B is taken out from the second nozzle hook 26B. When it is turned on (or removed), it switches to the off state.
  • the nozzle detectors 27A and 27B output a detection signal (ON signal or OFF signal) corresponding to whether or not the filling nozzles 7A and 7B are hooked on the nozzle hooks 26A and 26B to the control device 24.
  • the nozzle detectors 27A and 27B are not limited to those provided on the nozzle hooks 26A and 26B on the dispenser housing 4 side, and may be provided on the filling nozzles 7A and 7B. In either case, the filling nozzles 7A and 7B are held by the nozzle hooks 26A and 26B of the dispenser unit 3 when the hydrogen gas is not filled (that is, the waiting time for the filling work). That is, when the filling operation of filling the filled tank 32 of the vehicle 31 with hydrogen gas is completed, the filling nozzles 7A and 7B are returned to the nozzle hooks 26A and 26B (held in the nozzle accommodating portion).
  • the vehicle 31 driven by running on hydrogen gas as fuel is composed of, for example, a four-wheeled vehicle (passenger car) as shown in FIG.
  • the vehicle 31 includes, for example, a drive device (not shown) including a fuel cell and an electric motor, a filled tank 32 shown by a dotted line in FIG. 1, and the like.
  • the filled tank 32 is configured as a container having a pressure-resistant structure filled with hydrogen gas, and is mounted on the rear side of the vehicle 31, for example.
  • the tank 32 to be filled is not limited to the rear side of the vehicle 31, but may be provided on the front side or the center side.
  • the filling tank 32 is provided with a filling port 32A (receptacle) to which the connection coupler of the filling nozzle 7A (7B) can be detachably attached.
  • the filled tank 32 of the vehicle 31 is filled with hydrogen gas in a state where the filling nozzle 7A (7B) is airtightly connected (connected) to the filling port 32A. At this time, the filling nozzle 7A (7B) is locked by the locking mechanism so as not to be inadvertently disengaged from the filling port 32A.
  • the flow rate adjusting valve 12 and the shutoff valve are used. It is not preferable that the valve 13 is opened and hydrogen gas is discharged from the filling nozzles 7A and 7B through the gas supply pipeline 5. Therefore, in order to prevent hydrogen gas from being discharged from the filling nozzles 7A and 7B during maintenance, a switching valve for switching the opening and closing of the gas supply pipeline 5 separately from the flow rate adjusting valve 12 and the isolation valve 13. It is conceivable to provide. For example, as shown in FIG. 2, it is conceivable to provide the first switching valve 41A in the first supply line 5B of the gas supply line 5 and to provide the second switching valve 41B in the second supply line 5C.
  • the switching valves 41A and 41B for example, it is conceivable to adopt an electromagnetic or pneumatically operated valve device, that is, an automatic valve that can be switched between opening and closing by the control device 24.
  • an automatic valve such as a solenoid valve is equipped with an actuator for opening and closing a valve, a large installation space is required and the cost of a single device may increase.
  • a manual valve for manually switching between opening and closing is adopted as the switching valves 41A and 41B, it can be installed in a small space and the cost can be reduced.
  • the switching valves 41A and 41B provided in the gas supply line 5 (first supply line 5B, second supply line 5C) to the filling hoses 6A and 6B are used as manual valves.
  • the embodiment includes a mechanism for visually confirming the open / closed state of the switching valves 41A and 41B and a mechanism for detecting the opened / closed state of the switching valves 41A and 41B. That is, as shown in FIG. 2, the gas supply pipeline 5 is provided with switching valves 41A and 41B located on the downstream side of the supply control valves (flow rate adjusting valve 12, shutoff valve 13). The switching valves 41A and 41B switch the open / closed state in the gas supply line 5 (first supply line 5B, second supply line 5C).
  • the gas supply line 5 which is a gas supply path includes a first supply line 5B and a second supply line 5C which are a plurality of paths.
  • the switching valves 41A and 41B are provided in a plurality of paths, that is, in the first supply line 5B and the second supply line 5C, respectively.
  • the positions of the switching valves 41A and 41B may be provided on the upstream side of the supply control valve (flow rate adjusting valve 12, shutoff valve 13).
  • the switching valves 41A and 41B are manual switching valves that can be switched manually, more specifically, needle valves.
  • the valve opening amount of the switching valves 41A and 41B changes when the built-in valve body (needle) is displaced up and down by the handle 42. That is, the switching valves 41A and 41B are in the closed position (blocking position) where the flow of hydrogen gas is blocked by lowering the valve body built in by the rotation of the handle 42, and the valve body is raised by the rotation of the handle 42. As a result, it becomes an open position (communication position) where hydrogen gas flows.
  • the switching valves 41A and 41B are provided with a lever portion 46 as a display unit for displaying the switching state (opening / closing state) of the switching valves 41A and 41B. More specifically, the switching valves 41A and 41B are adjacent to the switching state display detecting mechanisms 43 and 43 for displaying the switching state of the switching valves 41A and 41B and detecting the switching state.
  • the open / close state display detection mechanisms 43 and 43 and the switching valves 41A and 41B are separate bodies (separate members and separate parts), but the open / close state display detection mechanisms 43 and 43 and the switching valves 41A and 41B are separated from each other. And may be integrally configured. That is, as shown in FIGS.
  • the open / close state display detection mechanism 43 and the switching valve 41A (41B) are separately fixed to the installation surface, but for example, the open / close state display detection is performed.
  • the open / close state display detection mechanism 43 may be provided integrally with the switching valve 41A (41B).
  • the open / close state display detection mechanism 43 includes a lever mounting bracket 44, a lever support portion 45, and a lever portion 46. Further, the open / closed state display detection mechanism 43 further includes a limit switch 47 as a detection means.
  • the lever mounting bracket 44 is a base frame of the open / closed state display detection mechanism 43.
  • the lever mounting bracket 44 is formed by, for example, bending a metal plate body, and includes a fixing plate portion 44A, a rising plate portion 44B, and a support plate portion 44C.
  • the fixing plate portion 44A is attached to the installation surface.
  • the rising plate portion 44B extends upward from the fixed plate portion 44A, and a limit switch 47 is attached to the rising plate portion 44B.
  • the support plate portion 44C extends in the horizontal direction from the upper end side of the rising plate portion 44B, and the lever support portion 45 is attached to the support plate portion 44C.
  • the lever support portion 45 rotatably supports the lever portion 46 with respect to the lever mounting bracket 44. That is, as shown in FIGS. 3 and 4, the lever support portion 45 rotatably supports the lever portion 46 with respect to the lever mounting bracket 44 about a vertical axis extending in the vertical direction.
  • the base end side of the lever portion 46 is rotatably supported by the support plate portion 44C of the lever mounting bracket 44 via the lever support portion 45.
  • the lever portion 46 can switch the display of the switching state according to the operation of the switching valve 41A (41B). That is, the lever portion 46 corresponds to a display unit (valve closed display unit) for displaying that the switching state of the switching valve 41A (41B) is closed (valve closed). In other words, the display unit that displays the switching state of the switching valve 41A (41B) corresponds to the position corresponding to the display of closing when the switching valve 41A (41B) is closed (in FIG. 3 and FIG. 4B).
  • the lever portion 46 as a cover portion that can be moved to the position). In this case, the lever portion 46 can move to the upper side of the handle 42 of the switching valve 41A (41B) when the switching valve 41A (41B) is closed.
  • the switching valve 41A (41B) is opened when the valve is opened, that is, when the staff member turns the handle 42 clockwise or counterclockwise to raise the handle 42. It shows the case where it is in a state.
  • the lever portion 46 is at a position (valve opening position) away from the handle 42. That is, in this case, even if the lever portion 46 is turned toward the handle 42 side, the lever portion 46 interferes with the handle 42, so that the lever portion 46 cannot be positioned above the handle 42.
  • FIGS. 3 and 4B when the valve is closed, that is, the staff turns the handle 42 counterclockwise or clockwise to lower the handle 42, thereby lowering the switching valve 41A (41B).
  • the lever portion 46 can be positioned above the handle 42. That is, in this case, as shown in FIG. 4B, the handle 42 is below the height position of the lever portion 46. Therefore, when the lever portion 46 is rotated toward the handle 42 from the position shown in FIGS. 3 and 4 (A) about the vertical axis of the lever support portion 45, the lever portion 46 interferes with the handle 42. Instead, the lever portion 46 can be positioned on the handle 42.
  • the clerk can rotate the lever portion 46 from the position shown in (A) of FIGS. 3 and 4 to the position shown in (B). Thereby, the clerk can determine whether the switching valve 41A (41B) is closed or opened by whether or not the lever portion 46 can be rotated toward the handle 42 side. .. Further, when the lever portion 46 is located on the handle 42, the clerk can easily visually determine that the switching valve 41A (41B) is closed.
  • the lever portion 46 has a grip plate portion 46A extending in the horizontal direction and a claw-shaped switch contact portion 46B extending downward from the grip plate portion 46A. ..
  • the switching valve 41A (41B) is closed, in other words, when the handle 42 is in the lowest position, the grip plate portion 46A is located on the upper side and the center portion of the handle 42 by the rotation operation of the staff. Can be located in. That is, the grip plate portion 46A of the lever portion 46 can be rotated to a position on the upper side of the handle 42 (valve closed position) and a position away from the handle 42 (valve open position) by a staff member.
  • the switch contact portion 46B contacts the pressing portion 47A of the limit switch 47 provided on the lever mounting bracket 44 when the lever portion 46 (grip plate portion 46A) is in the valve closed position, and switches the limit switch 47 to the ON position. be able to.
  • the limit switch 47 detects the position of the lever portion 46.
  • the limit switch 47 includes a contact (not shown) and a pressing portion 47A for switching the contact.
  • the pressing portion 47A is pressed against the switch contact portion 46B of the lever portion 46 when the lever portion 46 is in the valve closed position. That is, when the pressing portion 47A is pressed downward by contacting the switch contact portion 46B, the limit switch 47 switches from the OFF position to the ON position.
  • the limit switch 47 detects the position of the lever portion 46 and, by extension, the switching state (whether or not the valve is closed) of the switching valve 41A (41B).
  • the limit switch 47 is connected to the control device 24, and when it is in the ON position, the ON signal indicating that the lever portion 46 is located above the handle 42, in other words, the switching valve 41A (41B) is closed. An ON signal indicating that the valve is being valved is output to the control device 24. Thereby, the control device 24 can determine whether the switching valves 41A and 41B are open or closed.
  • the control device 24 controls the opening / closing of the flow rate adjusting valve 12 and / or the shutoff valve 13, which are supply control valves, in response to the detection of the limit switch 47.
  • the control by the control device 24, that is, the hydrogen gas filling control process shown in FIG. 6 will be described in detail later.
  • the limit switches 47 and 47 are provided in the vicinity of the switching valves 41A and 41B. Then, as shown in FIGS. 3 and 4B, the limit switch 47 is turned on by moving the lever portion 46 toward the handle 42 of the switching valve 41A (41B). The lever portion 46 can be rotated only when the handle 42 of the switching valve 41A (41B) is in the lowest position at the closed position. That is, when the handle 42 of the switching valve 41A (41B) is operated to close the switching valve 41A (41B), the grip plate portion 46A of the lever portion 46 rotates to a position above the handle 42. Can be made to.
  • the limit switch 47 can be operated by the switch contact portion 46B of the lever portion 46.
  • the handle 42 of the switching valve 41A (41B) is not in the closed position at the lowest position, the position of the handle 42 interferes with the grip plate portion 46A of the lever portion 46, so that the limit switch is used.
  • the lever portion 46 (switch contact portion 46B) cannot be moved (rotated) to the position where the 47 is operated.
  • the hydrogen gas filling device 1 has the above-mentioned configuration, and next, the hydrogen gas filling operation by the hydrogen gas filling device 1 will be described.
  • the operator performing the filling operation attaches the first filling nozzle 7A (or the second filling nozzle 7B) to the first nozzle hook 26A (or the second nozzle hook 26B). ) To remove it.
  • the first filling nozzle 7A or the second filling nozzle 7B
  • the second filling nozzle 7B the case where hydrogen gas is filled by the first filling nozzle 7A will be described, but the same applies to the second filling nozzle 7B.
  • the first filling nozzle 7A is connected to the filling port 32A of the tank to be filled 32, and the connection portion is locked.
  • the control device 24 outputs a valve opening signal to the flow rate adjusting valve 12 and the shutoff valve 13 to open the flow rate adjusting valve 12 and the shutoff valve 13.
  • the hydrogen gas in the gas accumulator 2 is filled in the vehicle 31 through the gas supply line 5 (main supply line 5A, first supply line 5B), the first filling hose 6A, and the first filling nozzle 7A.
  • the tank 32 is filled.
  • the control device 24 monitors, for example, the measurement results of the flow meter 17, the pressure sensor 18, and the temperature sensor 19, and controls the opening degree of the flow rate adjusting valve 12 in advance (constant pressure rise control method or constant flow control method). ) Etc. Thereby, the pressure and the flow rate of the hydrogen gas supplied in the gas supply pipe 5 can be controlled to an appropriate distribution state.
  • the control device 24 integrates the flow rate pulse from the flow meter 17 to calculate the hydrogen gas filling amount (mass), and the hydrogen gas filling amount reaches a preset target filling amount or the pressure. It is determined whether or not the pressure of the hydrogen gas detected by the sensor 18 has reached a preset target filling pressure (target filling pressure). When it is determined that the target filling amount (pressure) has been reached, the flow rate adjusting valve 12 and the isolation valve 13 are closed by the signal from the control device 24, and the filling of the filled tank 32 with hydrogen gas is completed. .. The filling operation is also completed when the operator operates the filling stop switch 21.
  • the control device 24 executes the filling end control process.
  • the decompression valve 23 is controlled to be opened from the closed state by a signal from the control device 24. Then, when the decompression valve 23 is opened, the decompression pipeline 22 is opened to the atmosphere, so that the gas on the filling nozzles 7A and 7B sides is discharged to the outside, and the pressure of the first filling nozzle 7A becomes the atmospheric pressure level. It is depressurized. In this state, the operator can remove the connecting coupler of the first filling nozzle 7A from the filling port 32A of the tank 32 to be filled.
  • the first filling nozzle 7A removed from the filling port 32A of the tank 32 to be filled is returned to the first nozzle hook 26A on the dispenser housing 4 side by the operator, and is hooked by a manual operation.
  • the first nozzle detector 27A provided on the first nozzle hook 26A detects whether or not the first filling nozzle 7A has been returned to the first nozzle hook 26A.
  • the detection signal from the first nozzle detector 27A is output to the control device 24.
  • the control device 24 determines that the filling work by the first filling nozzle 7A has been completed, and is in a standby state for the next filling work.
  • the staff member closes the first switching valve 41A or the second switching valve 41B as necessary.
  • the staff member performs maintenance on the first supply pipe line 5B, the first filling hose 6A, the first filling nozzle 7A, the first emergency disconnection coupling 8A, the first nozzle hook 26A, and the like, and the first switching valve 41A.
  • the handle 42 is rotated in the direction in which the handle 42 is lowered, and the first switching valve 41A is closed.
  • the clerk rotates the lever portion 46 of the open / close state display detection mechanism 43 on the first switching valve 41A side to the positions shown in FIGS. 3 and 4B.
  • the staff member can visually grasp that the first switching valve 41A is closed. Further, the pressing portion 47A of the limit switch 47 is pressed downward by the switch contact portion 46B of the lever portion 46. As a result, the ON signal is output from the limit switch 47 to the control device 24. The control device 24 can determine that the first switching valve 41A is in the closed state by the ON signal from the limit switch 47.
  • the staff member when performing maintenance on the second supply pipe line 5C, the second filling hose 6B, the second filling nozzle 7B, the second emergency disconnection coupling 8B, the second nozzle hook 26B, etc., the staff member is in charge of the second switching valve.
  • the handle 42 of the 41B is rotated in the direction in which the handle 42 is lowered, and the second switching valve 41B is closed.
  • the clerk rotates the lever portion 46 of the open / close state display detection mechanism 43 on the second switching valve 41B side to the positions shown in FIGS. 3 and 4B. As a result, the staff member can visually grasp that the second switching valve 41B is closed.
  • the pressing portion 47A of the limit switch 47 is pressed downward by the switch contact portion 46B of the lever portion 46.
  • the ON signal is output from the limit switch 47 to the control device 24.
  • the control device 24 can determine that the second switching valve 41B is in the closed state by the ON signal from the limit switch 47.
  • control process hydrogen gas filling control process
  • the control process of FIG. 6 is repeatedly executed, for example, in a predetermined control cycle (for example, 10 ms) while the control device 24 is energized.
  • the control device 24 determines in S1 whether or not the filling nozzles 7A and 7B have been removed from the nozzle hooks 26A and 26B. This determination can be made by the detection signals (ON signal or OFF signal) of the nozzle detectors 27A and 27B. If it is determined in S1 that "NO", that is, the filling nozzles 7A and 7B are not removed from the nozzle hooks 26A and 26B, the process of S1 is repeated. In this case, it is a standby state before the filling operation is started, and waits for the filling nozzles 7A and 7B to be removed from the nozzle hooks 26A and 26B. On the other hand, if "YES” in S1, that is, it is determined that the filling nozzle 7A (or filling nozzle 7B) has been removed from the nozzle hook 26A (or nozzle hook 26B), the process proceeds to S2.
  • S2 it is determined whether or not the switching valve 41A (or 41B) on the filling nozzle 7A (or 7B) side removed from the nozzle hook 26A (or 26B) is "open". This determination can be made from the signals of the nozzle detectors 27A and 27B and the signals of the limit switches 47 and 47. In this case, for example, when the ON signal is not input from the limit switch 47, the control device 24 determines that the switching valve 41A (or 41B) on the side where the limit switch 47 is provided is "open". be able to.
  • S4 a filling control process is performed. That is, in S4, when the filling start switch 20 is turned on, the flow rate adjusting valve 12 and the isolation valve 13 are opened, and the filled tank 32 is filled with hydrogen gas from inside the gas accumulator 2.
  • the control device 24 adjusts the opening degree of the flow rate adjusting valve 12 and the like by a preset control method while monitoring the measurement results of the flow meter 17, the pressure sensor 18, and the temperature sensor 19, for example. As a result, the pressure and flow rate of the hydrogen gas supplied in the gas supply pipe 5 are controlled to an appropriate distribution state.
  • S5 it is determined whether or not the filling of hydrogen gas is completed. Specifically, it is determined whether or not the filling amount or filling pressure of hydrogen gas has reached a preset target value. If it is determined in S5 that "NO", that is, the filling amount or filling pressure of hydrogen gas does not reach the preset target value, the process of S5 is repeated. In this case, the filling of the filled tank 32 with hydrogen gas is continued. On the other hand, when it is determined in S5 that "YES”, that is, the filling amount or filling pressure of the hydrogen gas has reached a preset target value, the filling of the hydrogen gas is terminated. That is, the flow rate adjusting valve 12 and the isolation valve 13 are closed, and the process proceeds to S6. Even when the operator operates the filling stop switch 21, "YES" is determined in S5 and the process proceeds to S6.
  • the filling end control process is performed.
  • the decompression valve 23 is opened from the closed state.
  • the decompression pipeline 22 is opened to the atmosphere, hydrogen gas on the filling nozzles 7A and 7B is discharged to the outside, and the pressure of the filling nozzle 7A (or 7B) is reduced to atmospheric pressure.
  • the control device 24 states that "the filling nozzle 7A (7B) has been removed from the nozzle hook 26A (26B) by the signal from the nozzle detector 27A (27B)" and "from the limit switch 47".
  • the switching valve 41A (41B) provided in the supply line 5B (5C) to which the filling nozzle 7A (7B) is connected is open. "
  • the control device 24 determines that the filling nozzle 7A (7B) is disconnected and the switching valve 41A (41B) of the supply pipe line 5B (5C) of the filling nozzle 7A (7B) is open. , The filling nozzle 7A (7B) is allowed to fill.
  • the control device 24 is a switching valve of the supply pipe line 5B (5C) of the filling nozzle 7A (7B) in which the filling nozzle 7A (7B) is not disengaged or is removed from the nozzle hook 26A (26B). If it is determined that 41A (41B) is not open, filling is prohibited. In this case, the control device 24 displays an alarm on the display unit 25 of the dispenser unit 3, for example, a display indicating that the filling nozzle 7A (7B) is not fillable, or a display indicating that the switching valve 41A (41B) is closed. I do. If it is determined that both the switching valve 41A and the switching valve 41B are open, filling is prohibited.
  • the switching valve 41A (or 41B) on the filling nozzle 7A (or 7B) side that has been removed is "opened” by the signals of the nozzle detectors 27A and 27B and the signals of the limit switches 47 and 47. It is determined whether or not it is.
  • the filling nozzle 7A (or 7B) for filling is selected (designated) by operating the operation panel, operation switch, etc. provided on the dispenser unit 3 before the filling operator starts filling. ).
  • the determination of S2 in FIG. 6 can be performed based on the selection information (designated information) and the signals of the limit switches 47 and 47.
  • the staff member can use the display unit (lever unit 46) during maintenance. ), That is, the open / closed state of the switching valves 41A and 41B, that is, the communication and shutoff states of the gas supply line 5 (first supply line 5B, second supply line 5C) by the switching valves 41A and 41B. Can be grasped.
  • the switching valves 41A and 41B are manual switching valves, and the display unit (lever unit 46) switches the display of the switching state according to the operation of the switching valves 41A and 41B (position of the handle 42). It is possible. Therefore, the open / closed state of the switching valves 41A and 41B can be easily grasped by the display unit (lever unit 46).
  • the display unit is provided with a lever unit 46 that can be moved to a position corresponding to the display of closure when the switching valves 41A and 41B are closed. Therefore, it is possible to easily grasp whether or not the switching valves 41A and 41B are closed depending on whether or not the lever portion 46 has moved to the position corresponding to the indication of closing.
  • the lever portion 46 can move to the upper side of the handle 42 of the switching valves 41A and 41B when the switching valves 41A and 41B are closed. Therefore, it is possible to easily grasp whether or not the switching valves 41A and 41B are closed depending on whether or not the lever portion 46 is moved above the handle 42 of the switching valves 41A and 41B.
  • a limit switch 47 is further provided as a detection means for detecting the position of the lever portion 46.
  • the control device 24 serving as the filling control means controls the opening and closing of the flow rate adjusting valve 12 and the shutoff valve 13 serving as the supply control valve in response to the detection of the limit switch 47. Therefore, the control device 24 can control the opening and closing of the flow rate adjusting valve 12 and the isolation valve 13 in response to the detection of the limit switch 47 that detects the position of the lever portion 46. Therefore, for example, when the switching valves 41A and 41B are closed, it is possible to prevent the flow rate adjusting valve 12 and the isolation valve 13 from opening.
  • a case where the nozzle hooks 26A and 26B (accommodating portions for accommodating the filling nozzles 7A and 7B) on which the filling nozzles 7A and 7B are hung is provided on the left side of the dispenser housing 4 has been described as an example.
  • the present invention is not limited to this, and for example, the nozzle hook (accommodation portion) may be provided on the right side of the dispenser housing, or may be provided at a position other than this (for example, the front surface). Further, a nozzle hook (accommodation portion) may be separately provided in the vicinity of the dispenser housing. Further, the first nozzle hook and the second nozzle hook may be provided on different side surfaces of the dispenser housing, respectively.
  • the filled tank 32 of the vehicle 31 is filled with compressed hydrogen gas
  • the present invention is not limited to this, and for example, it can be used when filling a tank to be filled (tank, container, etc.) other than a vehicle with hydrogen gas.
  • the dispenser unit 3 of the hydrogen gas filling device 1 may be installed in the middle of a pipeline (hydrogen supply pipeline) for supplying hydrogen gas to another place.
  • hydrogen gas has been described as an example as the fuel gas
  • a configuration (gas filling device) using a fuel gas other than hydrogen gas such as natural gas (NG) and propane gas (LPG) may be used.
  • the switching valves 41A and 41B are used as manual switching valves.
  • the switching valve for example, an automatic switching valve such as a solenoid valve whose opening and closing can be controlled by a control device may be used.
  • the automatic switching valve may be provided with, for example, a display unit that displays the switching state (for example, "open”, "closed") according to the switching state (switching position) of the automatic switching valve.
  • the display is not limited to "open” and "closed”, and may be hidden, for example, when “switching", "not switched", or in a non-switched state (closed state).
  • the lever portion 46 serving as the cover portion is configured to be movable above the handle 42 of the switching valves 41A and 41B when the switching valves 41A and 41B are closed has been described as an example.
  • the cover portion (lever portion) may be configured to be movable under the handle.
  • the handle of the switching valve may be configured to be displaced upward when the valve is closed.
  • the cover portion (lever portion) can be configured to be movable to the lower side of the handle displaced upward.
  • the cover portion (lever portion) may be provided with a notch portion into which the shaft of the handle enters, if necessary. Further, the cover portion (lever portion) can be set to a length protruding from the handle.
  • the case where the limit switch 47 is used as the detection means has been described as an example.
  • the present invention is not limited to this, and for example, a position sensor, a potentiometer, or the like that detects the position of the handle may be used as the detection means.
  • the detection means and / or the display unit may be configured to be built in the switching valve. Further, the detection means may be omitted.
  • the gas supply line 5 which is a gas supply path includes a first supply line 5B and a second supply line 5C which are a plurality of gas supply paths, and the first supply line 5B and the like.
  • the case where the switching valves 41A and 41B are provided in each of the second supply line 5C and the second supply line 5C has been described as an example.
  • the present invention is not limited to this, and for example, one switching valve may be provided in one gas supply path. Further, for example, a switching valve may be provided in each of the three or more gas supply paths.
  • the gas filling device based on the embodiment described above, for example, the one described below can be considered.
  • a gas supply path in which the upstream side is connected to the accumulator in which the fuel gas is accumulated and a filling in which the gas supply path is connected to the downstream side and connected to the filled tank mounted on the vehicle.
  • the cover is provided by controlling the opening and closing of the nozzle, the supply control valve provided in the middle of the gas supply path and supplying the fuel gas in the accumulator to the filling nozzle by opening the valve, and the supply control valve.
  • a gas filling device configured to include a filling control means for controlling the supply of the fuel gas to the filling tank, a switching valve provided in the gas supply path and switching an open / closed state in the gas supply path.
  • the switching valve is provided with a display unit for displaying the switching state of the switching valve.
  • the staff member can visually check the display unit to open / close the switching valve (that is, that is, when performing maintenance). It is possible to grasp the communication and cutoff state of the gas supply path by the switching valve.
  • the switching valve is a manual switching valve that can be manually switched, and the display unit can switch the display according to the operation of the manual switching valve.
  • the open / closed state of the manual switching valve can be easily grasped by the display unit capable of switching the display of the switching state according to the operation of the manual switching valve.
  • the display unit is a cover unit that can be moved to a position corresponding to the display of closure when the manual switching valve is closed. According to this third aspect, it is possible to easily grasp whether or not the manual switching valve is closed depending on whether or not the cover portion has moved to the position corresponding to the indication of closing.
  • the cover portion can be moved to the upper side or the lower side of the handle of the manual switching valve when the manual switching valve is closed. According to this fourth aspect, it is possible to easily grasp whether or not the manual switching valve is closed depending on whether or not the cover portion is moved to the upper side or the lower side of the handle of the manual switching valve.
  • the detection means for detecting the position of the cover portion is further provided, and the filling control means is the supply control valve in response to the detection of the detection means. Open / close control.
  • the filling control means can control the opening and closing of the supply control valve according to the detection of the detection means for detecting the position of the cover portion. Therefore, for example, when the manual switching valve is closed, it is possible to prevent the supply control valve from opening.
  • the gas supply path includes a plurality of paths, and the switching valve is provided in each of the plurality of paths.
  • the staff member grasps the open / closed state (that is, the communication / shutoff state of the plurality of paths) of the plurality of switching valves provided in each of the plurality of paths. Can be done.
  • the present invention is not limited to the above-described embodiments and includes various modifications.
  • the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. Further, it is possible to add, delete, or replace a part of the configuration of the embodiment with another configuration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un dispositif de commande (24) qui commande l'alimentation en hydrogène gazeux d'un réservoir de remplissage (32) dans un véhicule (31) par commande de l'ouverture et de la fermeture d'une vanne de réglage de débit (12) et d'une vanne d'arrêt (13). Des vannes de commutation (41A, 41B) sont disposées sur une conduite d'alimentation en gaz (5) positionnée plus en aval que la vanne de réglage de débit (12) et la vanne d'arrêt (13). Un mécanisme de détection (43) d'indication d'état ouvert/fermé, qui comprend une partie levier (46) pour indiquer l'état de commutation (état ouvert/fermé) des vannes de commutation (41A, 41B), est disposé de façon à laisser/contacter les vannes de commutation (41A, 41B). La partie levier (46) peut être déplacée vers une position correspondant à une indication de fermeture lorsque les vannes de commutation (41A, 41B) sont fermées.
PCT/JP2021/033562 2020-09-15 2021-09-13 Dispositif de remplissage de gaz WO2022059649A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53155132U (fr) * 1977-05-13 1978-12-06
JP2004019853A (ja) * 2002-06-19 2004-01-22 Tomoe Tech Res Co 回転弁の開度指示装置
JP2010133497A (ja) * 2008-12-04 2010-06-17 Tokiko Techno Kk ガス充填装置
JP2013024402A (ja) * 2011-07-26 2013-02-04 Viscas Corp バルブ開閉表示装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006220275A (ja) 2005-02-14 2006-08-24 Hitachi Ltd 充填装置
JP6347908B2 (ja) 2010-12-07 2018-06-27 日立オートモティブシステムズメジャメント株式会社 ガス供給装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53155132U (fr) * 1977-05-13 1978-12-06
JP2004019853A (ja) * 2002-06-19 2004-01-22 Tomoe Tech Res Co 回転弁の開度指示装置
JP2010133497A (ja) * 2008-12-04 2010-06-17 Tokiko Techno Kk ガス充填装置
JP2013024402A (ja) * 2011-07-26 2013-02-04 Viscas Corp バルブ開閉表示装置

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JPWO2022059649A1 (fr) 2022-03-24

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