JP6430780B2

JP6430780B2 - Disaster prevention equipment for hybrid stations

Info

Publication number: JP6430780B2
Application number: JP2014220288A
Authority: JP
Inventors: 康幸安里; 嘉夫中村; 拡西▲崎▼
Original assignee: Hochiki Corp
Current assignee: Hochiki Corp
Priority date: 2014-10-29
Filing date: 2014-10-29
Publication date: 2018-11-28
Anticipated expiration: 2034-10-29
Also published as: JP2016088102A

Description

本発明は、固定給油設備と水素ガスディスペンサーを同じ敷地内に隣接して配置したハイブリッドステーションの防災設備に関する。 The present invention relates to a disaster prevention facility for a hybrid station in which a fixed oil supply facility and a hydrogen gas dispenser are arranged adjacent to each other in the same site.

近年、水素を燃料とする燃料電池自動車（ＦＣＶ）の実用化と普及が推し進められており、これに合わせて、燃料電池自動車に燃料を供給する水素ステーションの設置も進められている。 In recent years, the fuel cell vehicle (FCV) using hydrogen as a fuel has been put into practical use and spread, and in accordance with this, the installation of a hydrogen station that supplies fuel to the fuel cell vehicle is also being advanced.

水素ステーションには、水素製造設備を備えた水素ステーション（オンサイト型水素ステーション）と、水素製造設備を備えず、水素製造設備、オンサイト型水素ステーション等から供給を受けて蓄圧する水素ステーション（オフサイト型水素ステーション）がある。
The hydrogen station hydrogen station with hydrogen production facilities (on-site hydrogen refueling station), not equipped with a hydrogen production facility, hydrogen production facility, on-site hydrogen refueling station for accumulating by being supplied from a hydrogen station or the like (Off Site type hydrogen station).

現在、設置されている水素ステーションは、住宅地等から離れた郊外に十分に広い敷地面積を確保して専用のステーションとして設置している。 Currently, the installed hydrogen station has a sufficiently large site area in the suburbs away from residential areas and is installed as a dedicated station.

特開２０１３−０４０６４８号公報JP2013-040648A 特開２０１２−０６６０８６号公報JP 2012-066086 A

ところで、水素を燃料とする燃料電池自動車は、近い将来、１８０万台程度の普及が予測されており、このように燃料電池自動車が普及してくると、郊外型の水素ステーションでは対応しきれず、都市部にある既存の給油ステーションの敷地を利用し、固定給油設備に隣接して水素ガスディスペンサーを設置したハイブリッドステーションの設置が不可避といえる。 By the way, fuel cell vehicles using hydrogen as fuel are expected to spread about 1.8 million units in the near future, and if fuel cell vehicles are spread in this way, suburban hydrogen stations can not cope, It can be said that it is inevitable to install a hybrid station with a hydrogen gas dispenser adjacent to a fixed fueling facility using the site of an existing fueling station in an urban area.

しかしながら、固定給油設備と水素ガスディスペンサーを同じ敷地内に隣接して配置したハイブリッドステーションにあっては、固定給油設備の設置エリアから水素ガスディスペンサーの設置エリアに車が入ってきた場合、固定給油設備の設置エリアに滞留しているガソリン等の滞留可燃ガスを水素ガスディスペンサーの設置エリアに運んできてしまう可能性があり（車の移動に伴う滞留可燃ガスの流れ込み）、水素ガスディスペンサーでの火災要因を高める可能性がある。 However, in the hybrid station where the fixed oil supply facility and the hydrogen gas dispenser are arranged adjacent to each other on the same site, if the car enters the hydrogen gas dispenser installation area from the fixed oil supply facility installation area, the fixed oil supply facility May stay in the installation area of the hydrogen gas dispenser (the flow of the staying combustible gas as the car moves), causing a fire in the hydrogen gas dispenser May increase.

この問題は、逆に水素ガスディスペンサーの設置エリアから固定給油設備の設置エリアに車が入ってきた場合も同様であり、水素ガスの運び込みにより固定給油設備での火災要因を高める可能性がある。 This problem is also the same when a vehicle enters the installation area of the fixed fuel supply facility from the installation area of the hydrogen gas dispenser, and there is a possibility of increasing the fire factor in the fixed fuel supply equipment by bringing in hydrogen gas.

本発明は、固定給油設備と水素ガスディスペンサー間の車両の移動に伴う滞留可燃ガスの流れ込みを相互に抑止して火災要因を排除可能とするハイブリッドステーションの防災設備を提供することを目的とする。 An object of this invention is to provide the disaster prevention equipment of the hybrid station which can mutually suppress the flow of the staying combustible gas accompanying the movement of the vehicle between fixed oil supply equipment and a hydrogen gas dispenser, and can eliminate a fire factor.

（ハイブリッドステーションの防災設備）
本発明は、固定給油設備と水素ガスディスペンサーを同じ敷地内に隣接して配置したハイブリッドステーションの防災設備に於いて、
固定給油設備と水素ガスディスペンサーとの間の車両が通過する場所に、路面側から上方に向けて水溶液を噴射して水幕を形成し、車両の移動に伴う滞留可燃ガスの移動先への流れ込みを抑止する滞留可燃ガス遮蔽設備を設けたことを特徴とする。 (Hybrid station disaster prevention equipment)
The present invention is a disaster prevention facility for a hybrid station in which a fixed fueling facility and a hydrogen gas dispenser are arranged adjacent to each other on the same site.
A water curtain is formed by spraying an aqueous solution upward from the road surface to the place where the vehicle passes between the fixed refueling facility and the hydrogen gas dispenser, and the stagnant combustible gas flows into the destination after the vehicle moves. It is characterized in that a stagnant combustible gas shielding facility is provided.

（水溶液噴射装置のヘッド配置）
滞留可燃ガス遮蔽設備は、固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアの間の車両通行方向の路面を横切る方向の境界ラインに、水溶液を噴射して水幕を形成する複数のヘッドを配列したヘッド群を少なくとも２列以上配置した水溶液噴射装置を設ける。
(Aqueous solution jetting device head arrangement)
The stagnant combustible gas shielding facility has a plurality of heads that inject an aqueous solution to form a water curtain on a boundary line in a direction crossing the road surface in the vehicle passage direction between the installation area of the fixed fueling facility and the installation area of the hydrogen gas dispenser. An aqueous solution ejecting apparatus in which at least two rows of arranged head groups are arranged is provided.

（水溶液噴射装置の可動型ヘッド配置）
滞留可燃ガス遮蔽設備は、固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアの間の車両通行方向の路面を横切る方向の境界ラインに、水溶液を噴射する複数のヘッドを配列したヘッド群を配置した水溶液噴射装置を設け、複数のヘッドは、水溶液を噴射する方向を変更可能とする。
(Moveable head arrangement of aqueous solution ejector)
The stagnant combustible gas shielding system has a head group in which multiple heads that inject aqueous solution are arranged on the boundary line across the road surface in the vehicle traffic direction between the installation area of the fixed refueling equipment and the installation area of the hydrogen gas dispenser. The aqueous solution ejecting apparatus is provided, and the plurality of heads can change the direction in which the aqueous solution is ejected.

（水溶液の種類）
滞留可燃ガス遮蔽設備は、気体と液体の混合器を設けて、水とガスを混合させた混合気液を生成して水溶液噴射装置に設けたヘッド列に混合気液を供給可能とし、水溶液として、水又は混合気液を噴射する。 (Type of aqueous solution)
The stagnant combustible gas shielding equipment is provided with a gas and liquid mixer to generate a mixture of water and gas so that the mixture can be supplied to the head row provided in the aqueous solution jetting device. Inject water or gas / liquid mixture.

（混合気液）
混合気液は、水と不活性ガスを混合させて生成した気液とする。 (Mixed gas / liquid)
The gas-liquid mixture is a gas-liquid generated by mixing water and an inert gas.

（火災検出時の混合気液）
滞留可燃ガス遮蔽設備は、火災検出時に、ヘッド列から水と不活性ガスを混合させた混合気液を水溶液として噴射する。 (Air-fuel mixture at the time of fire detection)
The staying combustible gas shielding equipment injects, as an aqueous solution, a gas-liquid mixture in which water and an inert gas are mixed from the head row when a fire is detected.

(水溶液の噴射タイミング1)
滞留可燃ガス遮蔽設備は、水溶液を常時噴射する。 (Water solution injection timing 1)
The staying combustible gas shielding equipment always injects the aqueous solution.

(水溶液の噴射タイミング２)
滞留可燃ガス遮蔽設備は、所定の検出信号を元に水溶液を噴射する制御部を設ける。 (Water solution injection timing 2)
The staying combustible gas shielding facility is provided with a control unit that injects an aqueous solution based on a predetermined detection signal.

(車両検出による水溶液噴射)
滞留可燃ガス遮蔽設備は、境界ラインに進入する車両を検出する車両検出器を設け、
制御部は、記車両検出器で境界ラインに進入する車両を検出した場合、車両の進入側に、水溶液を噴射する。 (Water solution injection by vehicle detection)
The staying combustible gas shielding equipment is provided with a vehicle detector for detecting a vehicle entering the boundary line,
When the controller detects a vehicle that enters the boundary line with the vehicle detector, the controller injects the aqueous solution on the vehicle entrance side.

(ガソリンガスの検出による水溶液噴射)
滞留可燃ガス遮蔽設備は、境界ライン及びその近傍に配置して、固定給油設備から気化したガソリンガスの濃度を検出するガソリンガス検出器を設け、
制御部は、ガソリンガス検出器で検出した濃度が所定濃度を超えた場合、固定給油設備の設置エリア側に向けて水溶液を噴射する。 (Water solution injection by detecting gasoline gas)
The stagnant combustible gas shielding facility is provided at a boundary line and in the vicinity thereof, and is provided with a gasoline gas detector that detects the concentration of gasoline gas vaporized from the fixed refueling facility,
A control part injects aqueous solution toward the installation area side of fixed oil supply equipment, when the density | concentration detected with the gasoline gas detector exceeds predetermined density | concentration.

(水素のガス検出による水溶液噴射)
滞留可燃ガス遮蔽設備は、境界ライン及びその近傍に配置して、水素ガスディスペンサー設備側の水素ガスの濃度を検出する水素検出器を設け、
制御部は、水素検出器で検出した濃度が所定濃度を超えた場合、水素ガスディスペンサー設備の設置エリア側に向けて水溶液を噴射する。 (Aqueous solution injection by hydrogen gas detection)
The staying combustible gas shielding equipment is disposed at the boundary line and in the vicinity thereof, and provided with a hydrogen detector that detects the concentration of hydrogen gas on the hydrogen gas dispenser equipment side,
When the concentration detected by the hydrogen detector exceeds a predetermined concentration, the control unit injects the aqueous solution toward the installation area side of the hydrogen gas dispenser facility.

（手動による水溶液噴射）
滞留可燃ガス遮蔽設備は、手動により水溶液の噴射を操作可能な操作部を設け、
制御部は、操作部の信号を元に、水溶液を噴射する。 (Manual aqueous solution injection)
The stagnant combustible gas shielding facility is equipped with an operation unit that can manually operate the injection of aqueous solution,
The control unit ejects the aqueous solution based on the signal from the operation unit.

(水溶液の噴射制御)
滞留可燃ガス遮蔽設備は、通常時は路面から少なくとも車両底部に対応した所定の高さの水幕を形成し、水素ステーションに設置している火災報知設備から移報された火災信号又は消火設備から移報された消火起動信号を受信した場合には、通常時よりも高く且つ幅広い水幕を形成する。 (Water solution injection control)
The stagnant combustible gas shielding equipment normally forms a water curtain of a predetermined height corresponding to at least the bottom of the vehicle from the road surface, and from the fire signal or fire extinguishing equipment transferred from the fire alarm equipment installed at the hydrogen station. When the fire extinguishing start signal transferred is received, a wide water curtain is formed which is higher than normal.

（水溶液と不活性ガスの選択及び同時噴射）
滞留可燃ガス遮蔽設備は、水溶液噴射装置に設けた１又は複数列のヘッド群に水溶液と不活性ガスを選択的又は同時に供給可能とする。 (Selection and simultaneous injection of aqueous solution and inert gas)
The staying combustible gas shielding facility can selectively or simultaneously supply an aqueous solution and an inert gas to one or a plurality of rows of head groups provided in the aqueous solution injection device.

（水溶液と不活性ガスの選択噴射）
滞留可燃ガス遮蔽設備は、水溶液噴射装置に設けた水溶液を噴射する方向を変更可能とする複数のヘッドを備えた１列のヘッド群に水溶液と不活性ガスを選択的に供給可能とする。 (Selective injection of aqueous solution and inert gas)
The staying combustible gas shielding equipment can selectively supply the aqueous solution and the inert gas to a group of heads having a plurality of heads that can change the direction of spraying the aqueous solution provided in the aqueous solution ejecting apparatus.

（基本的な効果）
本発明は、固定給油設備と水素ガスディスペンサーを同じ敷地内に隣接して配置したハイブリッドステーションの防災設備に於いて、固定給油設備と水素ガスディスペンサーとの間の車両が通過する場所に、路面側から上方に向けて水溶液を噴射して水幕を形成し、車両の移動に伴う滞留可燃ガスの移動先への流れ込みを抑止する滞留可燃ガス遮蔽設備を設けるようにしたため、例えば、固定給油設備の設置エリアから水素ガスディスペンサーの設置エリアに車が進入する場合、固定給油設備の設置エリアに滞留しているガソリン等の滞留可燃ガスが車の移動により運ばれるようにして水素ガスディスペンサーの設置エリアに流れ込もうとするが、進入しようとする車に向けて路面側から水溶液を噴射して車の下面との間に水幕を形成することで、滞留可燃ガスの移動が妨げられて水素ガスディスペンサーの設置エリアへの流れ込みを抑止し、水素ガスディスペンサーの火災要因となることを排除可能とする。 (Basic effect)
The present invention relates to a disaster prevention facility of a hybrid station in which a fixed oil supply facility and a hydrogen gas dispenser are arranged adjacent to each other in the same site, and a road surface side where a vehicle passes between the fixed oil supply facility and the hydrogen gas dispenser. A stagnant combustible gas shielding facility that suppresses the inflow of stagnant combustible gas to the destination of movement of the vehicle as a water curtain is formed by jetting an aqueous solution upward from the vehicle. When a vehicle enters the installation area of the hydrogen gas dispenser from the installation area, the remaining combustible gas such as gasoline staying in the installation area of the fixed refueling equipment is carried by the movement of the car to the installation area of the hydrogen gas dispenser. An aqueous solution is sprayed from the road surface toward the vehicle that is about to enter, but a water curtain is formed between the vehicle and the lower surface of the vehicle. In residence combustible gas transport is prevented to suppress the flow of the installation area of the hydrogen gas dispensers, and can be eliminated to be a fire cause hydrogen gas dispensers.

逆に、水素ガスディスペンサーの設置エリアから固定給油設備の設置エリアに車が進入する場合にも、水素ガスディスペンサーの設置エリアに滞留している水素ガスの固定給油設備の設置エリアへの流れ込みを抑止し、固定給油設備の火災要因となることを排除可能とする。 Conversely, even when a vehicle enters the installation area of the fixed fuel supply facility from the installation area of the hydrogen gas dispenser, the flow of hydrogen gas remaining in the installation area of the hydrogen gas dispenser to the fixed fuel supply facility installation area is suppressed. In addition, it is possible to eliminate the cause of fire in fixed oil supply equipment.

（水溶液噴射装置のヘッド配置による効果）
また、滞留可燃ガス遮蔽設備は、固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアの間の車両通行方向の路面を横切る方向の境界ラインに、水溶液を噴射して水幕を形成する複数のヘッドを配列したヘッド群を少なくとも２列以上配置した水溶液噴射装置を設けるようにしたため、境界ラインに進入してくる車両に対し向かい合う方向から水溶液を噴射して水幕を形成することで、車両の進入方向に応じて、より確実に滞留可燃ガスの流れ込みを抑止可能とする。
(Effects of head placement of aqueous solution ejector)
Further, the stagnant combustible gas shielding equipment includes a plurality of water jets formed by spraying an aqueous solution on a boundary line in a direction crossing a road surface in a vehicle traffic direction between the installation area of the fixed fueling equipment and the installation area of the hydrogen gas dispenser. Since the aqueous solution ejecting apparatus in which at least two or more head groups in which the heads are arranged is arranged is provided, an aqueous solution is ejected from a direction facing the vehicle entering the boundary line to form a water curtain. According to the approach direction, the flow of the staying combustible gas can be more reliably suppressed.

（水溶液噴射装置の可動型ヘッド配置による効果）
滞留可燃ガス遮蔽設備は、水溶液を噴射する複数のヘッドを配列したヘッド群を配置した水溶液噴射装置を設け、複数のヘッドは、水溶液を噴射する方向を変更可能とするようにしたため、一列のヘッド群で境界ラインに進入してくる車両に対し噴射方向を切り替えることで、向かい合う方向から水溶液を噴射可能とし、ヘッド数を低減して設備構成を簡単にできる。 (Effects of movable head arrangement of aqueous solution ejector)
The stagnant combustible gas shielding equipment is provided with an aqueous solution injection device in which a head group in which a plurality of heads for injecting an aqueous solution are arranged is arranged, and the plurality of heads can change the direction in which the aqueous solution is injected. By switching the injection direction for vehicles entering the boundary line in groups, the aqueous solution can be injected from the opposite direction, and the number of heads can be reduced to simplify the equipment configuration.

（水溶液の種類による効果）
また、滞留可燃ガス遮蔽設備は、気体と液体の混合器を設けて、水とガスを混合させた混合気液を生成して水溶液噴射装置に設けたヘッド列に気液を供給可能とし、水溶液として、水又は混合気液を噴射する。例えば、滞留可燃ガス遮蔽設備は、火災検出時に、ヘッド列から水と不活性ガスを混合させた混合気液を水溶液として噴射することで、通常時は水を噴射して不活性ガスの無駄な消費を抑制し、火災時には不活性ガスと水を混合した気液を噴射して、火災による放射熱の抑制と延焼防止を可能とする。 (Effect depending on the type of aqueous solution)
In addition, the staying combustible gas shielding equipment is provided with a gas and liquid mixer to generate a gas / liquid mixture in which water and gas are mixed so that the gas / liquid can be supplied to the head row provided in the aqueous solution ejecting apparatus. As shown in FIG. For example, a stagnant combustible gas shielding facility injects water and an inert gas mixture as a water solution from a head row as an aqueous solution when a fire is detected. Consume consumption and, in the event of a fire, inject a gas-liquid mixture of inert gas and water to reduce the radiant heat and prevent the spread of fire.

(水溶液の噴射タイミング1の効果)
また、滞留可燃ガス遮蔽設備は、水溶液を常時噴射することで、固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアとの間での滞留可燃ガスの流れ込みを抑止し、相互に火災要因となることを排除可能とする。
(Effect of aqueous solution injection timing 1)
In addition, the stagnant combustible gas shielding facility constantly injects aqueous solution to suppress the flow of stagnant combustible gas between the installation area of the fixed refueling equipment and the installation area of the hydrogen gas dispenser, causing mutual fire. This can be eliminated.

(水溶液の噴射タイミング２の効果)
また、滞留可燃ガス遮蔽設備は、所定の検出信号を元に水溶液を噴射する制御部を設けるようにしたため、所定の検出信号が得られた場合に水溶液を噴射することで、固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアとの間での滞留可燃ガスの流れ込み抑止し、相互に火災要因となることを排除可能とする。 (Effect of aqueous solution injection timing 2)
In addition, since the stagnant combustible gas shielding equipment is provided with a control unit that injects an aqueous solution based on a predetermined detection signal, the fixed oil supply facility is installed by injecting the aqueous solution when a predetermined detection signal is obtained. The flow of stagnant combustible gas between the area and the installation area of the hydrogen gas dispenser can be suppressed, and it can be eliminated that causes mutual fire.

(車両検出による水溶液噴射)
また、滞留可燃ガス遮蔽設備は、境界ラインに進入する車両を検出する車両検出器を設け、制御部は、車両検出器で境界ラインに進入する車両を検出した場合、車両の進入側に、水溶液を噴射するようにしため、車両の境界ラインを超える移動に伴う固定給油設備の設置エリアと水素ガスディスペンサーの設置エリアとの間での滞留可燃ガスの流れ込みを確実に抑止し、相互に火災要因となることを排除可能とする。 (Water solution injection by vehicle detection)
Further, the stagnant combustible gas shielding facility is provided with a vehicle detector that detects a vehicle that enters the boundary line, and when the control unit detects a vehicle that enters the boundary line with the vehicle detector, an aqueous solution is provided on the vehicle entrance side. In order to inject fuel, the flow of stagnant combustible gas between the installation area of the fixed fueling facility and the installation area of the hydrogen gas dispenser that accompanies the movement beyond the vehicle boundary line is surely suppressed, causing mutual fire factors. Can be eliminated.

（ガソリンガスの検出による不活性ガス噴射の効果）
また、滞留可燃ガス遮蔽設備は、境界ライン及びその近傍に配置して固定給油設備から気化したガソリンガスの濃度を検出するガソリンガス検出器を設け、制御部は、ガソリンガス検出器で検出した濃度が所定濃度を超えた場合、定給油設備の設置エリア側に向けて配置したヘッド群を選択して水溶液を噴射して水幕を形成するようにしたため、火災となることが想定される濃度のガソリンガスを検出して水溶液を噴射して水幕を形成することで、確実にガソリンガスの流れ込みを抑止して火災要因を排除する。 (Effect of inert gas injection by detecting gasoline gas)
In addition, the stagnant combustible gas shielding facility is provided with a gasoline gas detector that is disposed in the vicinity of the boundary line and in the vicinity thereof to detect the concentration of gasoline gas evaporated from the fixed fuel supply facility, and the control unit detects the concentration detected by the gasoline gas detector. When the concentration exceeds the specified concentration, the head group arranged toward the installation area of the constant refueling facility is selected and the aqueous solution is injected to form a water curtain. By detecting gasoline gas and injecting an aqueous solution to form a water curtain, the flow of gasoline gas is surely suppressed and fire factors are eliminated.

(水素のガス検出による水溶液噴射の効果)
また、滞留可燃ガス遮蔽設備は、境界ライン及びその近傍に配置して、水素ガスディスペンサー設備側の水素ガスの濃度を検出する水素検出器を設け、制御部は、水素検出器で検出した濃度が所定濃度を超えた場合、水素ガスディスペンサー設備の設置エリア側に向けて水溶液を噴射するようにしたため、火災となることが想定される濃度の水素ガスを検出して水溶液を噴射して水幕を形成することで、確実に水素ガスの流れ込みを抑止して火災要因を排除する。 (Effect of aqueous solution injection by hydrogen gas detection)
Also, the stagnant combustible gas shielding equipment is provided at the boundary line and in the vicinity thereof, and a hydrogen detector for detecting the hydrogen gas concentration on the hydrogen gas dispenser equipment side is provided, and the controller detects the concentration detected by the hydrogen detector. When the specified concentration is exceeded, the aqueous solution is sprayed toward the installation area of the hydrogen gas dispenser equipment. Therefore, hydrogen gas at a concentration that is expected to cause a fire is detected and the aqueous solution is injected to open the water curtain. By forming it, the flow of hydrogen gas is surely suppressed and fire factors are eliminated.

（手動による水溶液噴射の効果）
また、滞留可燃ガス遮蔽設備は、手動により水溶液の噴射を操作可能な操作部を設け、
制御部は、操作部の信号を元に、水溶液を噴射するようにしたため、例えば、固定給油設備による車両の給油中にガソリンが漏れだした場合、係員が操作部を操作することで水溶液を噴射し、水素ガスディスペンサーの設置エリアへのガソリンガスの流れ込みを確実に抑止して火災要因を排除する。 (Effect of manual solution injection)
In addition, the staying combustible gas shielding equipment is provided with an operation unit that can manually operate the injection of the aqueous solution,
Since the control unit sprays the aqueous solution based on the signal from the operation unit, for example, when gasoline leaks during refueling of the vehicle by the fixed refueling facility, the staff operates the operation unit to inject the aqueous solution. In addition, the gasoline gas will surely be prevented from flowing into the hydrogen gas dispenser installation area to eliminate fire factors.

(水溶液の噴射制御による効果)
また、滞留可燃ガス遮蔽設備は、通常時は路面から少なくとも車両底部に対応した所定の高さの水幕を形成し、水素ステーションに設置している火災報知設備から移報された火災信号又は消火設備から移報された消火起動信号を受信した火災時には、通常時よりも高く且つ幅広い水幕を形成するようにしたため、通常時は移動する車両の底部に届く例えば数十センチメートル程度の高さの水幕を形成して滞留可燃ガスの移動を抑止し、一方、火災時には、通常時よりは高く且つ幅広いに水幕、例えば数メートル程度の水幕を形成することで、隣接設備への放射熱の抑制と延焼防止を可能とする。 (Effects of aqueous solution injection control)
In addition, the stagnant combustible gas shielding equipment normally forms a water curtain of a predetermined height corresponding to at least the bottom of the vehicle from the road surface, and fire signals or fire extinguishers transferred from the fire alarm equipment installed at the hydrogen station. In the event of a fire that has received a fire extinguishing start signal transferred from the equipment, a wider water curtain is formed than in normal times, so that it normally reaches the bottom of a moving vehicle, for example, several tens of centimeters high. In order to prevent the movement of stagnant combustible gas, a water curtain, for example, a water curtain of several meters, is formed in a wider and wider area than in normal times. Enables heat suppression and fire spread prevention.

（水溶液と不活性ガスの選択及び同時噴射による効果）
また、滞留可燃ガス遮蔽設備は、水溶液噴射装置に設けた１又は複数列のヘッド群に水溶液と不活性ガスを選択的又は同時に供給可能としたため、例えば２列以上の配管を使用した場合は、一方のヘッド列から水溶液を噴射し、他方のヘッド列から不活性ガスを噴射することを可能とし、火災による放射熱の抑制と延焼防止を可能とする。 (Effects of selecting aqueous solution and inert gas and simultaneous injection)
In addition, the stagnant combustible gas shielding equipment can selectively or simultaneously supply the aqueous solution and the inert gas to one or a plurality of rows of head groups provided in the aqueous solution jetting device. For example, when two or more rows of pipes are used, It is possible to inject an aqueous solution from one head row and inject an inert gas from the other head row, thereby suppressing radiant heat due to fire and preventing fire spread.

（水溶液と不活性ガスの選択噴射）
また、滞留可燃ガス遮蔽設備は、水溶液噴射装置に設けた水溶液を噴射する方向を変更可能とする複数のヘッドを備えた１列のヘッド群に水溶液と不活性ガスを選択的に供給可能としたため、通常時は水を噴射して不活性ガスの無駄な消費を抑制し、火災時には不活性ガスと水を混合した気液を噴射して、火災による放射熱の抑制と延焼防止を可能とする。 (Selective injection of aqueous solution and inert gas)
In addition, the staying combustible gas shielding facility can selectively supply the aqueous solution and the inert gas to a group of heads having a plurality of heads that can change the direction of spraying the aqueous solution provided in the aqueous solution ejecting apparatus. In normal times, water is injected to suppress wasteful consumption of inert gas, and in the event of a fire, a gas-liquid mixture of inert gas and water is injected to suppress radiant heat and prevent the spread of fire. .

ハイブリッドステーションの設備概要を平面で示した説明図Explanatory drawing showing the equipment outline of the hybrid station in plan 図１の水溶液噴射装置を取り出して示した説明図Explanatory drawing which extracted and showed the aqueous solution injection apparatus of FIG. 滞留可燃ガス遮蔽設備の実施形態を示した説明図Explanatory drawing showing an embodiment of stagnant combustible gas shielding equipment 給油設備エリアから水素設備エリアに車が進入する場合の滞留可燃ガスの流れ込みを抑止する滞留可燃ガス遮蔽設備の動作を示した説明図Explanatory drawing showing the operation of the staying combustible gas shielding equipment that suppresses the flow of staying combustible gas when the vehicle enters the hydrogen equipment area from the refueling equipment area 水溶液と窒素ガスの噴射を可能とする滞留可燃ガス遮蔽設備の他の実施形態を示した説明図Explanatory drawing which showed other embodiment of the staying combustible gas shielding equipment which enables injection of aqueous solution and nitrogen gas 可動型ヘッドを備えた水溶液噴射装置を取り出して示した説明図Explanatory drawing showing an aqueous solution ejecting apparatus equipped with a movable head

［ハイブリッドステーション防災設備］
図１はハイブリッドステーションの設備概要を平面で示した説明図、図２は図１の水溶液噴射装置を取り出して示した説明図であり、図２（Ａ）は断面を示し、図２（Ｂ）は蓋を外した平面を示す。また、図３は滞留可燃ガス遮蔽設備の実施形態を示した説明図である。 [Hybrid station disaster prevention equipment]
FIG. 1 is an explanatory diagram showing the outline of the equipment of the hybrid station in plan view, FIG. 2 is an explanatory diagram showing the aqueous solution injection device of FIG. 1 taken out, FIG. 2 (A) shows a cross section, FIG. 2 (B) Indicates a plane with the lid removed. FIG. 3 is an explanatory view showing an embodiment of the staying combustible gas shielding facility.

（ハイブリッドステーションの概要）
図１に示すように、ハイブリッドステーション１０は、道路に面した部分を除く三方を防火壁１６で囲んだ敷地内を給油設備エリアＡ１と水素設備エリアＡ２に分け、給油設備エリアＡ１には固定給油設備１２を設置し、水素設備エリアＡ２には水素ガスディスペンサー１４を設置している。 (Overview of hybrid station)
As shown in FIG. 1, the hybrid station 10 divides the site surrounded by the fire wall 16 on three sides except for the part facing the road into a fueling facility area A1 and a hydrogen facility area A2, and the fueling facility area A1 has a fixed fueling. The facility 12 is installed, and the hydrogen gas dispenser 14 is installed in the hydrogen facility area A2.

本実施形態は、水素製造設備を備えた水素ステーション（オンサイト型水素ステーション）とした場合を例にとっており、敷地の奥行側に防火壁１６で仕切られた建屋を水素製造エリアＡ３とし、そこに水素製造設備２２、圧縮機２４及び貯蔵設備２５を設置し、注入口２０ａを持つ地下に設置した原燃料タンク２０から水素製造設備２２に原燃料を取り込んで水素ガスを生成し、圧縮機２４で所定圧力に圧縮して貯蔵設備２５に貯蔵し、貯蔵設備２５から水素ガスディスペンサー１４の水素スタンド１４ａに水素ガスを送り、例えば３５ＭＰａ差圧充填により燃料電池自動車（ＦＣＶ）となる車両１に水素を供給して充填可能としている。
In this embodiment, a hydrogen station (on-site type hydrogen station) having a hydrogen production facility is taken as an example, and a building partitioned by a fire wall 16 on the depth side of the site is defined as a hydrogen production area A3. The hydrogen production facility 22, the compressor 24, and the storage facility 25 are installed, and raw gas is taken into the hydrogen production facility 22 from the raw fuel tank 20 installed in the basement having the inlet 20a to generate hydrogen gas. is compressed to a predetermined pressure stored in the storage facility 25, the feed of hydrogen gas in the hydrogen station 14a of the hydrogen gas dispenser 14 from the storage facility 25, hydrogen for example, the vehicle 1 serving as a fuel cell vehicle (FCV) by 35MPa differential pressure filling It can be supplied and filled.

一方、給油設備エリアＡ１には、固定給油設備１２の給油スタンド１２ａによりガソリン車等の車両に給油可能としており、また、サービススルーを兼ねた事務所２６、自動車点検整備場２８、洗車機３０を設けている。 On the other hand, in the refueling facility area A1, a vehicle such as a gasoline vehicle can be refueled by a refueling station 12a of the fixed refueling facility 12, and an office 26, a car inspection / repair station 28, and a car wash machine 30 also serving as a service through Provided.

（防災設備の概要）
水素設備エリアＡ２に対する防災設備として、本実施形態にあっては、火災報知設備、消火設備および滞留可燃ガス遮蔽設備を設けている。 (Outline of disaster prevention equipment)
In the present embodiment, a fire alarm facility, a fire extinguishing facility, and a staying combustible gas shielding facility are provided as disaster prevention facilities for the hydrogen facility area A2.

火災報知設備は、事務所２６に設けた火災受信盤３２から引き出した感知器回線に事務所内に設置した火災感知器３４を接続し、火災感知器３４による火災発報信号を火災受信盤３２で受信して火災警報を出力すると共に、火災移報信号を他の設備に出力するようにしている。 In the fire alarm system, a fire detector 34 installed in the office is connected to a sensor line drawn from the fire receiver 32 provided in the office 26, and a fire alarm signal from the fire detector 34 is transmitted by the fire receiver 32. Receives fire alarms and outputs fire warning signals to other equipment.

消火設備は、水素製造エリアＡ３に設置した貯蔵設備２５を防護対象として複数の水噴霧ヘッド４８を設置し、水噴霧ヘッド４８に対しては給油設備エリアＡ１の奥に設置した水噴霧用ポンプ設備４４から給水配管を接続して消火用水を加圧供給可能としており、水噴霧用ポンプ設備４４に対しては停電対策として非常電源設備４６を設置している。 The fire extinguishing equipment is provided with a plurality of water spray heads 48 with the storage equipment 25 installed in the hydrogen production area A3 as a protection target, and the water spray pump equipment installed behind the fuel supply area A1 with respect to the water spray head 48. A water supply pipe is connected from 44 so that water for fire extinguishing can be supplied under pressure, and an emergency power supply facility 46 is installed for the water spray pump facility 44 as a power failure countermeasure.

水噴霧用ポンプ設備４４の起動による水噴霧ヘッド４８からの水散布は事務所２６に設置している消火制御盤３５の制御により行う。消火制御盤３５に対しては、水素製造エリアＡ３に設置した、炎検知器３６、水素検出器３８、温度検出器４０及び起動装置４２を信号線接続しており、また、炎検知器３６と起動装置４２は水素ガスディスペンサー１４の近傍にも設置している。
Water spraying from the water spray head 48 by the activation of the water spray pump equipment 44 is performed by control of the fire extinguishing control panel 35 installed in the office 26. For extinguishing control panel 35, was placed in hydrogen production area A3, the flame detector 36, the hydrogen detector 38, and a temperature detector 40 and the start device 42 connects the signal lines, also, a flame detector 36 The activation device 42 is also installed in the vicinity of the hydrogen gas dispenser 14.

消火制御盤３５は、炎検知器３６で火災による炎を検知した場合、水素検出器３８で水素ガス濃度が引火濃度４％に対応した所定の閾値濃度（例えば、爆発下限界１／４）を超えたことを検出した場合、温度検出器４０による検出温度が所定の閾値温度を超えた場合、起動装置４２の操作による起動信号を受信した場合、又は、火災受信盤３２から火災移報信号を受信した場合、水噴霧用ポンプ設備４４にポンプ起動信号を出力してポンプ起動し、加圧した消火用水を水噴霧ヘッド４８から貯蔵設備２５に散水して冷却し、火災による熱から防護する。
When the flame detector 36 detects a flame due to a fire, the fire extinguishing control panel 35 sets a predetermined threshold concentration (for example, lower explosion limit ¼) corresponding to a hydrogen gas concentration of 4% by the hydrogen detector 38. When it is detected that the temperature has been exceeded, when the temperature detected by the temperature detector 40 exceeds a predetermined threshold temperature, when the activation signal is received by the operation of the activation device 42, or when the fire signal is sent from the fire receiving panel 32 When received, the pump is activated by outputting a pump activation signal to the water spray pump facility 44, and the pressurized fire-extinguishing water is sprayed from the water spray head 48 to the storage facility 25 to be cooled and protected from the heat from the fire.

また、給油設備エリアＡ１と水素設備エリアＡ２の所定の場所には、消火器４５を配置している。 Moreover, the fire extinguisher 45 is arrange | positioned in the predetermined place of the fuel supply equipment area A1 and the hydrogen equipment area A2.

［滞留可燃ガス遮蔽設備］
本実施形態にあっては、火災報知設備及び消火設備に加え、給油設備エリアＡ１と水素設備エリアＡ２との間の車両１の移動に伴う滞留可燃ガスの流れ込みを抑止する滞留可燃ガス遮蔽設備を設けている。 [Still flammable gas shielding equipment]
In this embodiment, in addition to the fire alarm equipment and the fire extinguishing equipment, the stagnant combustible gas shielding equipment that suppresses the inflow of stagnant combustible gas accompanying the movement of the vehicle 1 between the fueling equipment area A1 and the hydrogen equipment area A2. Provided.

（水溶液噴射装置）
滞留可燃ガス遮蔽設備は、固定給油設備１２と水素ガスディスペンサー１４との間の車両が通過する場所に、即ち、給油設備エリアＡ１と水素設備エリアＡ２の境界ラインとなる所定の位置に水溶液噴射装置５０を設け、路面側から通過する車両１に向けて加圧水溶液を噴射して水幕を形成し、車両の移動に伴う滞留可燃ガスの移動先への流れ込みを抑止するようにしている。 (Aqueous solution sprayer)
The staying combustible gas shielding equipment is an aqueous solution injection device at a place where a vehicle passes between the fixed fuel supply equipment 12 and the hydrogen gas dispenser 14, that is, at a predetermined position that is a boundary line between the fuel supply equipment area A1 and the hydrogen equipment area A2. 50 is provided to inject a pressurized aqueous solution toward the vehicle 1 passing from the road surface side to form a water curtain so as to suppress the flow of the staying combustible gas to the destination of movement of the vehicle.

水溶液噴射装置５０は、図２に示すように、給油設備エリアＡ１と水素設備エリアＡ２の間の境界ライン５８の位置に所定深さと幅を持つトラフ６０を形成し、トラフ６０の底部に２本の給水配管６２ａ，６２ｂを設置している。給水配管６２ａ，６２ｂの各々には分岐配管を介して複数のヘッド５４ａ，５４ｂを接続して２列にヘッド群を形成している。
As shown in FIG. 2, the aqueous solution injection device 50 forms a trough 60 having a predetermined depth and width at the position of the boundary line 58 between the oil supply facility area A1 and the hydrogen facility area A2, and two at the bottom of the trough 60. Water supply pipes 62a and 62b are installed. A plurality of heads 54a, 54b are connected to each of the water supply pipes 62a, 62b via branch pipes to form head groups in two rows.

給油設備Ａ１側に配置しているヘッド５４ａは、加圧水溶液の噴射方向を給油設備エリアＡ１から水素設備エリアＡ２に進入しようとする車両に対し斜め上向きの噴射方向５５ａとなるように設置している。また、水素設備Ａ２側に配置しているヘッド５４ｂは、加圧水溶液の噴射方向を水素設備エリアＡ２から給油設備エリアＡ１に進入しようとする車両に対し斜め上向きの噴射方向５５ｂとなるように設置している。 The head 54a arranged on the oil supply facility A1 side is installed so that the injection direction of the pressurized aqueous solution is an obliquely upward injection direction 55a with respect to the vehicle entering the hydrogen facility area A2 from the oil supply facility area A1. . Further, the head 54b arranged on the hydrogen facility A2 side is installed so that the injection direction of the pressurized aqueous solution is obliquely upward with respect to the vehicle about to enter the fuel supply facility area A1 from the hydrogen facility area A2. ing.

ヘッド５４ａ，５４ｂによる加圧水溶液の放水パターンは、例えば円形または横に長い楕円形に広がる円錐パターンであり、トラフ６０の開口部を超えると隣接するヘッドからの加圧水の噴射パターンと重なり合い、ヘッド群の手前側に加圧水の噴射により切れ目のない水幕を遮蔽壁として形成するように、ヘッド５４ａ，５４ｂのノズル形状を決めている。 The water discharge pattern of the pressurized aqueous solution by the heads 54a and 54b is, for example, a circular pattern or a conical pattern that extends in a horizontally long ellipse, and overlaps with the jet pattern of pressurized water from the adjacent heads beyond the opening of the trough 60. The nozzle shapes of the heads 54a and 54b are determined so that a continuous water curtain is formed as a shielding wall by jetting pressurized water on the front side.

また、トラフ６０の開口には格子状の蓋６１を設けており、格子枠に設ける複数の格子を縦置きの薄板等とすることで，ヘッド５４ａ，５４ｂから噴射する加圧水溶液の噴射を可能な限り妨げないようにする。 In addition, a lattice-like lid 61 is provided at the opening of the trough 60, and a plurality of lattices provided on the lattice frame are formed as vertically arranged thin plates or the like, so that the pressurized aqueous solution ejected from the heads 54a and 54b can be ejected. Do not disturb as much as possible.

また、図１に示すように、給油設備エリアＡ１と水素設備エリアＡ２の境界ラインに設置した水溶液噴射装置５０に対しては、その両側に検知エリアＡ４，Ａ５を持つように車両検出器６６ａ，６６ｂを設けると共に、給油設備エリアＡ１側にガソリンガス検出器６８を設け、水素設備エリアＡ２に水素検出器３８を設けている。
Further, as shown in FIG. 1, for the aqueous solution injection device 50 installed in the boundary line between the fueling facility area A1 and the hydrogen facility area A2, the vehicle detector 66a, so as to have detection areas A4 and A5 on both sides thereof. 66b, a gasoline gas detector 68 is provided on the refueling facility area A1 side, and a hydrogen detector 38 is provided on the hydrogen facility area A2.

車両検出器６６ａ，６６ｂとしては、発光部と受光部を対向配置した減光式検出器、車両の通過による荷重を検出する圧電センサ等を使用し、誤って人を検出しないように、車両の大きさや重さ等を検出して確実に車両を検出可能とする。 As the vehicle detectors 66a and 66b, a dimming detector in which a light emitting unit and a light receiving unit are arranged to face each other, a piezoelectric sensor that detects a load caused by the passage of the vehicle, and the like are used. The vehicle can be reliably detected by detecting the size and weight.

また、ガソリンガス検出器６８は固定給油設備１２でガソリンを給油した際に漏れ出したガソリンガスの滞留による濃度を検出する。 Further, the gasoline gas detector 68 detects the concentration due to the stagnation of the gasoline gas leaked when the gasoline is supplied by the fixed fuel supply facility 12.

事務所２６には、滞留可燃ガス遮蔽設備の制御盤５２を設置しており、制御盤５２に車両検出器６６ａ，６６ｂ及びガソリンガス検出器６８を信号線接続している。 The office 26 is provided with a control panel 52 of a staying combustible gas shielding facility, and vehicle detectors 66a and 66b and a gasoline gas detector 68 are connected to the control panel 52 by signal lines.

また、給油設備エリアＡ１の奥には、ポンプ設備６４を設置し、給水配管により水溶液噴射装置５０に設けたヘッド５４ａ，５４ｂに消火用水を加圧水溶液として供給可能としている。 In addition, a pump facility 64 is installed in the back of the oil supply facility area A1, and fire-extinguishing water can be supplied as a pressurized aqueous solution to the heads 54a and 54b provided in the aqueous solution injection device 50 through a water supply pipe.

（設備構成）
滞留可燃ガス遮蔽設備の設備構成を、図３について説明すると次のようになる。滞留可燃ガス防災設備の制御盤５２は、制御部７０、表示部７２及び操作部７４を備える。制御部７０は、ＣＰＵ、メモリ、各種の入出力ポート等を備えたコンピュータ回路等であり、ＣＰＵによるプログラムの実行により制御機能が実現される。表示部７２には滞留可燃ガス遮蔽設備の監視や操作に必要な各種の表示灯を設け、操作部７４には滞留可燃ガス遮蔽設備の操作に必要な各種のスイッチを設けている。操作部７４のスイッチとしては、例えば、給油設備側噴射スイッチと水素設備側噴射スイッチを設けている。 (Equipment configuration)
The equipment configuration of the staying combustible gas shielding equipment will be described with reference to FIG. The control panel 52 of the staying combustible gas disaster prevention equipment includes a control unit 70, a display unit 72, and an operation unit 74. The control unit 70 is a computer circuit including a CPU, a memory, various input / output ports, and the like, and a control function is realized by executing a program by the CPU. The display unit 72 is provided with various indicator lights necessary for monitoring and operating the staying combustible gas shielding facility, and the operation unit 74 is provided with various switches necessary for operating the staying combustible gas shielding facility. As switches of the operation unit 74, for example, a fueling facility side injection switch and a hydrogen facility side injection switch are provided.

制御部７０に対しては車両検出器６６ａ，６６ｂ、ガソリンガス検出器６８及び水素検出器３８を接続し、また、火災受信盤３２及び消火制御盤３５からの移報信号線を接続している。
The vehicle detectors 66a and 66b, the gasoline gas detector 68, and the hydrogen detector 38 are connected to the control unit 70, and the transfer signal lines from the fire receiving board 32 and the fire extinguishing control board 35 are connected. .

ポンプ設備６４は、水源水槽７５、ポンプ７６、モータ７８、蓄圧タンク８０、圧力スイッチ８２及びポンプ制御盤８４で構成しており、圧力スイッチ８２に設定した所定圧力となるように、ポンプ制御盤８４によりモータ７８でポンプ７６を運転制御し、蓄圧タンク７８を経由して所定圧力の加圧水溶液を水溶液噴射装置５０に供給可能としている。 The pump facility 64 includes a water source tank 75, a pump 76, a motor 78, a pressure accumulation tank 80, a pressure switch 82, and a pump control panel 84, and the pump control panel 84 is set to a predetermined pressure set in the pressure switch 82. Thus, the motor 78 controls the operation of the pump 76, and a pressurized aqueous solution having a predetermined pressure can be supplied to the aqueous solution injection device 50 via the pressure accumulation tank 78.

加圧水溶液を供給する蓄圧タンク８０からの給水配管は２分岐してそれぞれ電磁弁８６，８８を設け、電磁弁８６の２次側の配管を水溶液噴射装置５０のヘッド５４ａを接続したヘッド群５６ａの給水配管６２ａに接続し、また、電磁弁８８の２次側の配管を水溶液噴射装置５０のヘッド５４ｂを接続したヘッド群５６ｂの給水配管６２ｂに接続している。
The water supply piping from the pressure accumulating tank 80 for supplying the pressurized aqueous solution is branched into two, and electromagnetic valves 86 and 88 are provided, respectively, and the secondary piping of the electromagnetic valve 86 is connected to the head 54a of the aqueous solution injection device 50. The secondary water supply pipe 62a is connected to the water supply pipe 62a, and the secondary pipe of the solenoid valve 88 is connected to the water supply pipe 62b of the head group 56b to which the head 54b of the aqueous solution injection device 50 is connected.

制御盤５２の制御部７０は、車両検出器６６ａにより図１に示した給油設備エリアＡ１から水素設備エリアＡ２に向かって移動してくる車両の車両検出信号Ｅ１を受信した場合、電磁弁８６を開制御し、水溶液噴射装置５０のヘッド５４ａを設けたヘッド群５６ａから加圧水溶液を給油設備エリアＡ１から向かってくる車両に向けて路面側から斜め上向きに噴射する制御を行う。このため給油設備エリアＡ１から境界ラインに進入してくる車両に対し向かい合う方向から加圧水溶液を噴射して水幕を形成することで、車両の進入に応じて水素設備エリアＡ１に流れ込もうとする滞留可燃ガスとなるガソリンガスを水幕により遮蔽し、流れ込みを抑止可能とする。 When the vehicle detector 66a receives the vehicle detection signal E1 of the vehicle moving from the fueling facility area A1 to the hydrogen facility area A2 shown in FIG. Open control is performed, and control is performed to inject the pressurized aqueous solution from the head group 56a provided with the head 54a of the aqueous solution injection device 50 obliquely upward from the road surface toward the vehicle coming from the fuel supply area A1. For this reason, by injecting the pressurized aqueous solution from the direction facing the vehicle entering the boundary line from the refueling facility area A1, a water curtain is formed to try to flow into the hydrogen facility area A1 as the vehicle enters. Gasoline gas, which is a stagnant combustible gas, is shielded by a water curtain so that it can be prevented from flowing.

また、制御部７０は、車両検出器６６ｂにより図１に示した水素設備エリアＡ２から給油設備エリアＡ１に向かって移動してくる車両の車両検出信号Ｅ２を受信した場合、電磁弁８８を開制御し、水溶液噴射装置５０のヘッド群５６ｂから加圧水溶液を水素設備エリアＡ２から向かってくる車両に向けて路面側から斜め上向きに噴射する制御を行う。このため水素設備エリアＡ２から境界ラインに進入してくる車両に対し向かい合う方向から加圧水溶液を噴射して水幕を形成することで、車両の進入に応じて給油設備エリアＡ１に流れ込もうとする滞留可燃ガスとなる水素ガスを水幕により遮蔽し、流れ込みを抑止可能とする。
Further, when the vehicle detector 66b receives the vehicle detection signal E2 of the vehicle moving from the hydrogen facility area A2 shown in FIG. 1 toward the fueling facility area A1 by the vehicle detector 66b, the control unit 70 controls to open the electromagnetic valve 88. Then, control is performed to inject the pressurized aqueous solution from the head group 56b of the aqueous solution injection device 50 toward the vehicle coming from the hydrogen facility area A2 obliquely upward from the road surface side. For this reason, by injecting the pressurized aqueous solution from the direction facing the vehicle entering the boundary line from the hydrogen facility area A2 to form a water curtain, it tries to flow into the fueling facility area A1 according to the vehicle entering. The hydrogen gas, which is a stagnant combustible gas, is shielded by a water curtain so that the inflow can be suppressed.

また、制御部７０は、ガソリンガス検出器６８により所定濃度以上のガソリンガス濃度の検出で出力されるガソリンガス検出信号Ｅ３を受信した場合、電磁弁８６を開制御し、水溶液噴射装置５０のヘッド群５６ａから加圧水溶液を給油設備エリアＡ１に向けて噴射する制御を行う。このため給油設備エリアＡ１に滞留しているガソリンガスが境界ライン付近まで広がって水素設備エリアＡ２に流れ込む動きを水幕の形成で遮蔽し、流れ込みを抑止可能とする。 In addition, when the control unit 70 receives a gasoline gas detection signal E3 output by the gasoline gas detector 68 when the gasoline gas concentration is equal to or higher than a predetermined concentration, the control unit 70 opens the electromagnetic valve 86 and controls the head of the aqueous solution injection device 50. Control which injects pressurized aqueous solution from the group 56a toward oil supply equipment area A1 is performed. For this reason, the movement of gasoline gas staying in the refueling facility area A1 to the vicinity of the boundary line and flowing into the hydrogen facility area A2 is shielded by the formation of the water curtain, and the flow can be suppressed.

なお、ガソリンガス検出器６８からガソリンガス検出信号Ｅ３を受信した場合、制御部７０は、電磁弁８６，８８の両方を開制御することで、水溶液噴射装置５０の両方のヘッド群５６ａ，５６ｂから加圧水溶液を両側に向けて噴射する制御を行い、水幕を二重に形成することで、更に確実にガソリンガスの流れ込みを遮蔽ようにしても良い。 In addition, when the gasoline gas detection signal E3 is received from the gasoline gas detector 68, the control unit 70 opens both the electromagnetic valves 86 and 88 so that both the head groups 56a and 56b of the aqueous solution injection device 50 are controlled. By controlling the injection of the pressurized aqueous solution toward both sides and forming the double water curtain, the inflow of gasoline gas may be more reliably shielded.

また、制御部７０は、水素ガス検出器３８により所定濃度以上の水素ガス濃度の検出で出力される水素ガス検出信号Ｅ４を受信した場合、電磁弁８８を開制御し、水溶液噴射装置５０のヘッド群５６ｂから加圧水溶液を水素設備エリアＡ２に向けて噴射する制御を行う。このため水素設備エリアＡ２に滞留している水素ガスが境界ライン付近まで広がって給油設備エリアＡ１に流れ込む動きを水幕の形成で遮蔽し、流れ込みを抑止可能とする。 When the control unit 70 receives the hydrogen gas detection signal E4 output by the hydrogen gas detector 38 when the hydrogen gas concentration is equal to or higher than the predetermined concentration, the control unit 70 controls the opening of the electromagnetic valve 88 and the head of the aqueous solution injection device 50. Control is performed to inject the pressurized aqueous solution from the group 56b toward the hydrogen equipment area A2. For this reason, the movement of the hydrogen gas staying in the hydrogen facility area A2 to the vicinity of the boundary line and flowing into the fuel supply facility area A1 is shielded by the formation of the water curtain, and the inflow can be suppressed.

なお、水素ガス検出器３８から水素ガス検出信号Ｅ４を受信した場合、制御部７０は、電磁弁８６，８８の両方を開制御することで、水溶液噴射装置５０の両方のヘッド群５６ａ，５６ｂから加圧水溶液を両側に向けて噴射する制御を行い、水幕を二重に形成することで、更に確実に水素ガスの流れ込みを遮蔽ようにしても良い。 When the hydrogen gas detection signal E4 is received from the hydrogen gas detector 38, the control unit 70 controls both the electromagnetic valves 86 and 88 to open from both the head groups 56a and 56b of the aqueous solution injection device 50. Control of injecting the pressurized aqueous solution toward both sides may be performed to form a double water curtain so as to more reliably block the flow of hydrogen gas.

また、制御部７０は、火災受信盤３２からの火災移報信号Ｅ５又は消火制御盤３５からの消火起動移報信号Ｅ６を受信した火災時には、電磁弁８６及び又は電磁弁８８を開制御し、蓄圧タンク８０から加圧水を水溶液噴射装置５０のヘッド群５６ａ，５６ｂの何れか一方又は両方に供給して加圧水溶液を両側又は片側に向けて噴射する制御を行う。このため給油設備エリアＡ１と水素設備エリアＡ２の間に設けた水溶液噴射装置５０から加圧水溶液を噴射して水幕を形成することで、火災による放射熱の抑制と延焼防止を可能とする。
また、制御部７０は、火災時には、ポンプ制御盤９６に高圧切替制御信号を出力し、水溶液噴射装置５０から噴射する加圧水溶液を通常時より高圧とし、隣接設備への延焼防止をより確実にすることを可能とする。制御部７０は、例えば通常時は路面から車両１の底部に届く数十センチメートルの高さの水幕を形成する所定の圧力で加圧水溶液を水溶液噴射装置５０のノズル群から噴射し、一方、火災時には、通常時より高い例えば数メートルの高さで幅広い水幕を形成するよう高圧の加圧水溶液を水溶液噴射装置５０のノズル群から噴射させる。
In addition, the control unit 70 controls to open the solenoid valve 86 and / or the solenoid valve 88 in the event of a fire that has received the fire transfer signal E5 from the fire receiving board 32 or the fire extinguishing start signal E6 from the fire fighting control board 35 , Control is performed by supplying pressurized water from the accumulator tank 80 to one or both of the head groups 56a and 56b of the aqueous solution injection device 50 and injecting the pressurized aqueous solution toward both sides or one side. For this reason, suppression of radiant heat by fire and prevention of fire spread are enabled by injecting the pressurized aqueous solution from the aqueous solution injection device 50 provided between the fueling facility area A1 and the hydrogen facility area A2 to form a water curtain .
In addition, in the event of a fire, the control unit 70 outputs a high-pressure switching control signal to the pump control panel 96 so that the pressurized aqueous solution injected from the aqueous solution injection device 50 has a higher pressure than normal, and more reliably prevents the spread of fire to adjacent facilities. Make it possible. The control unit 70, for example, normally injects a pressurized aqueous solution from the nozzle group of the aqueous solution injection device 50 at a predetermined pressure that forms a water curtain with a height of several tens of centimeters reaching the bottom of the vehicle 1 from the road surface, In the event of a fire, a high-pressure pressurized aqueous solution is injected from the nozzle group of the aqueous solution injection device 50 so as to form a wide water curtain at a height of, for example, several meters higher than normal.

また、制御部７０は、操作部７４に設けた給油設備側噴射スイッチの操作による信号を受けた場合、電磁弁８６を開制御し、加圧水溶液を水溶液噴射装置５０のヘッド群５６ａから給油設備エリアＡ１に向けて噴射する制御を行う。 When the control unit 70 receives a signal from the operation of the fuel supply facility side injection switch provided in the operation unit 74, the control unit 70 opens the electromagnetic valve 86 and supplies the pressurized aqueous solution from the head group 56 a of the aqueous solution injection device 50 to the fuel supply facility area. Control to inject toward A1 is performed.

また、制御部７０は、操作部７４に設けた水素設備側噴射スイッチの操作による信号を受けた場合、電磁弁８８を開制御し、加圧水溶液を水溶液噴射装置５０のヘッド群５６ｂから水素設備エリアＡ２に向けて噴射する制御を行う。 When the control unit 70 receives a signal from the operation of the hydrogen facility side injection switch provided in the operation unit 74, the control unit 70 controls the opening of the electromagnetic valve 88 and supplies the pressurized aqueous solution from the head group 56 b of the aqueous solution injection device 50 to the hydrogen facility area. Control to inject toward A2.

［滞留可燃ガス遮蔽設備の動作］
図４は給油設備エリアから水素設備エリアに車が進入する場合の滞留可燃ガスの流れ込みを抑止する滞留可燃ガス遮蔽設備の動作を示した説明図であり、図４（Ａ）は進入直前の状態を示し、図４（Ｂ）（Ｃ）は車両通過中の状態を示す。 [Operation of stagnant combustible gas shielding equipment]
FIG. 4 is an explanatory view showing the operation of the staying combustible gas shielding equipment that suppresses the flow of staying combustible gas when the vehicle enters the hydrogen equipment area from the refueling equipment area, and FIG. 4 (B) and 4 (C) show a state in which the vehicle is passing.

図４（Ａ）に示すように、給油設備エリアＡ１にガソリンガス１００が滞留しており、この状態で車両１が水素設備エリアＡ２に向けて移動してきた場合、検出エリアＡ４に進入した車両１を車両検出器６６ａが検出して車両検出信号Ｅ１を出力する。制御盤５２の制御部７０は、車両検出器６６ａからの車両検出信号Ｅ１を受信すると、電磁弁８６を開制御し、蓄圧タンク８０から電磁弁８６を介して給水配管６２ａに加圧水溶液を供給し、水溶液噴射装置５０に設けた複数のヘッド５４ａ（ヘッド群５６ａ）から境界ライン５８に向かって進入してくる車両１に路面側から斜め上向きに加圧水溶液１０２を噴射して水幕を形成する。
As shown in FIG. 4A, when the gasoline gas 100 stays in the refueling facility area A1, and the vehicle 1 moves toward the hydrogen facility area A2 in this state, the vehicle 1 entering the detection area A4. Is detected by the vehicle detector 66a and a vehicle detection signal E1 is output. When the control unit 70 of the control panel 52 receives the vehicle detection signal E1 from the vehicle detector 66a, the control unit 70 opens the electromagnetic valve 86 and supplies the pressurized aqueous solution from the pressure accumulation tank 80 to the water supply pipe 62a via the electromagnetic valve 86. The pressurized aqueous solution 102 is ejected obliquely upward from the road surface to the vehicle 1 entering the boundary line 58 from a plurality of heads 54a (head group 56a) provided in the aqueous solution ejecting apparatus 50 to form a water curtain.

この場合、境界ライン５８に向かって進入してくる車両１の底部と路面の間にはガソリンガス１００が滞留しており、車両１の移動に伴いガソリンガス１００も境界ライン５８に向かって一緒に流れ込むように移動してくる。 In this case, the gasoline gas 100 stays between the bottom of the vehicle 1 entering the boundary line 58 and the road surface, and the gasoline gas 100 also moves toward the boundary line 58 as the vehicle 1 moves. It moves to flow.

図４（Ｂ）に示すように、車両１の前部が水溶液噴射装置５０の設置場所に近づくと、ヘッド５４ａから噴射している加圧水溶液１０２が車両１の底部と路面との間の空間に吹き込まれ水幕を形成し、その間に滞留しているガソリンガス１００の移動を加圧水溶液１０２の噴射により形成した水幕により遮蔽し、ガソリンガス１００が水素設備エリアＡ２に流れ込むことを抑止する。 As shown in FIG. 4B, when the front portion of the vehicle 1 approaches the installation location of the aqueous solution injection device 50, the pressurized aqueous solution 102 injected from the head 54a is placed in the space between the bottom of the vehicle 1 and the road surface. It is blown to form a water curtain, and the movement of the gasoline gas 100 staying in the meantime is shielded by the water curtain formed by the injection of the pressurized aqueous solution 102 to prevent the gasoline gas 100 from flowing into the hydrogen equipment area A2.

図４（Ｃ）に示すように、車両１が水溶液噴射装置５０の上を通過している場合、車両検出器６６ａから車両検出信号Ｅ１が継続して得られていることから、水溶液噴射装置５０のノズル５４ａからの加圧水溶液１０２の噴射が継続し、車両１の底部と路面との間の空間に滞留しているガソリンガス１００を水幕の形成により遮蔽し、ガソリンガス１００が水素設備エリアＡ２に流れ込むことを抑止する。このとき水素設備エリアＡ２側に設けた車両検出器６６ｂからも車両検出信号Ｅ２が得られている。 As shown in FIG. 4C, when the vehicle 1 passes over the aqueous solution injection device 50, the vehicle detection signal E1 is continuously obtained from the vehicle detector 66a. The pressurized aqueous solution 102 from the nozzle 54a continues to be injected, and the gasoline gas 100 staying in the space between the bottom of the vehicle 1 and the road surface is shielded by the formation of a water curtain. Deter flow into At this time, the vehicle detection signal E2 is also obtained from the vehicle detector 66b provided on the hydrogen facility area A2 side.

続いて、車両１が水溶液噴射装置５０の設置場所を通過すると、車両検出器６６ａからの車両検出信号Ｅ１が最初に停止し、続いて、車両検出器６６ｂからの車両検出信号Ｅ２が停止することから、これに基づき制御装置５２の制御部７０は、電磁弁８６を閉制御することで、水溶液噴射装置５０からの加圧水の噴射を停止する。 Subsequently, when the vehicle 1 passes through the installation location of the aqueous solution injection device 50, the vehicle detection signal E1 from the vehicle detector 66a stops first, and then the vehicle detection signal E2 from the vehicle detector 66b stops. Therefore, the control unit 70 of the control device 52 stops the injection of the pressurized water from the aqueous solution injection device 50 by closing the electromagnetic valve 86 based on this.

一方、車両が水素設備エリアＡ２から給油設備エリアＡ１に向けて移動してきた場合には、車両検出器６６ｂからの車両検出信号Ｅ２の受信により制御盤５２の制御部７０が電磁弁８８を開制御して水溶液噴射装置５０のヘッド５４ｂ（ヘッド群５６ｂ）から加圧水溶液を進入してくる車両に対し路面から斜め上向きに噴射して水幕を形成し、車両１の底部と路面との間の空間に滞留している水素ガスを遮蔽し、水素ガスが車両の移動に伴い給油設備エリアＡ１に流れ込むことを抑止する。 On the other hand, when the vehicle has moved from the hydrogen facility area A2 toward the refueling facility area A1, the control unit 70 of the control panel 52 controls the solenoid valve 88 to open by receiving the vehicle detection signal E2 from the vehicle detector 66b. Then, a pressurized aqueous solution is injected from the head 54b (head group 56b) of the aqueous solution ejecting apparatus 50 obliquely upward from the road surface to form a water curtain, and a space between the bottom of the vehicle 1 and the road surface The hydrogen gas staying in the tank is shielded to prevent the hydrogen gas from flowing into the fuel supply facility area A1 as the vehicle moves.

［滞留可燃ガス遮蔽設備の他の実施形態］
図５は水溶液と窒素ガスの噴射を可能とする滞留可燃ガス遮蔽設備の他の実施形態を示した説明図である。 [Another embodiment of staying combustible gas shielding equipment]
FIG. 5 is an explanatory view showing another embodiment of the staying combustible gas shielding facility that enables injection of an aqueous solution and nitrogen gas.

図５に示すように、本実施形態の滞留可燃ガス遮蔽設備は、水素製造設備２２が水素製造の副産物として窒素ガスを生成することから、図３の実施形態に加え、水素製造設備２２から得られた窒素ガスを水溶液噴射装置５０から不活性ガスとして噴射可能としたことを特徴とする。
As shown in FIG. 5, the residence combustible gas shielding apparatus of the present embodiment, since the hydrogen production facility 22 produces nitrogen gas as a by-product of hydrogen production, in addition to the embodiment of FIG. 3, obtained from the hydrogen production facility 22 The obtained nitrogen gas can be injected from the aqueous solution injection device 50 as an inert gas.

本実施形態は、加圧水を供給するポンプ設備６４に加え、不活性ガスとして窒素ガスを加圧供給する不活性ガス供給設備６５を追加的に設けている。不活性ガス供給設備６５は、コンプレッサ９０、リザーバタンク９２、圧力スイッチ９４及びコンプレッサ制御盤９６により構成し、水素製造設備２０で副産物として生成される窒素ガスを、圧力スイッチ９４に設定した所定圧力となるようにコンプレッサ制御盤９６によるコンプレッサ９０の運転制御で加圧（圧縮）してリザーバタンク９２に充填し、所定圧力の窒素ガスを水溶液噴射装置５０に不活性ガスとして供給可能としている。
In the present embodiment, an inert gas supply facility 65 that supplies nitrogen gas under pressure as an inert gas is additionally provided in addition to the pump facility 64 that supplies pressurized water. The inert gas supply facility 65 includes a compressor 90, a reservoir tank 92, a pressure switch 94, and a compressor control panel 96. Nitrogen gas generated as a by-product in the hydrogen production facility 20 has a predetermined pressure set in the pressure switch 94. In this manner, the reservoir 90 is filled by being pressurized (compressed) by the operation control of the compressor 90 by the compressor control panel 96, and nitrogen gas at a predetermined pressure can be supplied to the aqueous solution injection device 50 as an inert gas.

リザーバタンク９２の２次側の配管は電磁弁９８を介して水溶液噴射装置５０の複数のヘッド５４ａを設けた給水配管６２ａに接続し、また、電磁弁９９を介して水溶液噴霧装置５０の複数のヘッド５４ｂを設けた給水配管６２ｂに接続している。
The secondary pipe of the reservoir tank 92 is connected to a water supply pipe 62 a provided with a plurality of heads 54 a of the aqueous solution injection device 50 via an electromagnetic valve 98, and a plurality of the aqueous solution spraying device 50 is connected via an electromagnetic valve 99. It is connected to a water supply pipe 62b provided with a head 54b.

制御盤５２の制御部７０は、ガソリンガス検出器６８により所定濃度以上のガソリンガス濃度の検出で出力されるガソリンガス検出信号Ｅ３を受信した場合、火災により火災受信盤３２からの火災移報信号Ｅ５又は消火制御盤３５からの消火起動移報信号Ｅ６を受信した場合、水溶液噴射装置５０の２列のヘッド群５６ａ，５６ｂの何れか一方から加圧水溶液を噴射して水幕を形成すると共に他方から窒素ガスを噴射する気液混合噴射制御を行うか、或いは、水溶液噴射装置５０の２列のヘッド群５６ａ，５６ｂの両方から窒素ガスを噴射する窒素ガス噴射制御を行う。
When the control unit 70 of the control panel 52 receives the gasoline gas detection signal E3 output by the gasoline gas detector 68 when detecting the gasoline gas concentration equal to or higher than the predetermined concentration, the fire transfer signal from the fire receiving panel 32 due to a fire. When a fire extinguishing start signal E6 is received from E5 or the fire extinguishing control panel 35 , a pressurized water solution is ejected from either one of the two groups of head groups 56a, 56b of the aqueous solution ejecting device 50 to form a water curtain and the other The gas-liquid mixing injection control for injecting the nitrogen gas from the head is performed, or the nitrogen gas injection control for injecting the nitrogen gas from both of the two groups of head groups 56a and 56b of the aqueous solution injection device 50 is performed.

気液混合噴射制御を行う場合、制御部７０は、電磁弁８６を開制御してヘッド列５６ａから加圧水溶液を噴射して水幕を形成し、同時に、電磁弁９８を開制御してヘッド群５６ｂから窒素ガスを噴射させる。また、制御部７０は、逆に、電磁弁８８を開制御してヘッド列５６ｂから加圧水溶液を噴射して水幕を形成し、同時に、電磁弁９９を開制御してヘッド群５６ａから窒素ガスを噴射するようにしても良い。 When performing the gas-liquid mixing injection control, the control unit 70 controls the opening of the electromagnetic valve 86 to inject a pressurized aqueous solution from the head row 56a to form a water curtain, and simultaneously controls the opening of the electromagnetic valve 98 to control the head group. Nitrogen gas is injected from 56b. Conversely, the control unit 70 controls the opening of the electromagnetic valve 88 to inject a pressurized aqueous solution from the head row 56b to form a water curtain, and at the same time opens the electromagnetic valve 99 to control nitrogen gas from the head group 56a. May be injected.

また窒素ガス噴射制御を行う場合、制御部７０は、電磁弁９８，９９を開制御し、ヘッド群５６ａ，５６ｂの両方から窒素ガスを噴射する。また、窒素ガス噴射制御は、電磁弁９８，９９の何れか一方を開制御することで、ヘッド群５６ａ，５６の何れか一方から窒素ガスを噴射するようにしても良い。それ以外の構成及び機能は、図３の実施形態と基本的に同じになる。 When performing nitrogen gas injection control, the control unit 70 opens the electromagnetic valves 98 and 99 and injects nitrogen gas from both the head groups 56a and 56b. In addition, the nitrogen gas injection control may be configured to inject nitrogen gas from either one of the head groups 56a and 56 by opening one of the electromagnetic valves 98 and 99. Other configurations and functions are basically the same as those of the embodiment of FIG.

このように本実施形態の滞留可燃ガス遮蔽設備は、火災時に不活性ガスとして窒素ガスを水溶液噴射装置５０から単独で又は加圧水溶液と共に噴射することで、より確実な放射熱の抑制と延焼防止を可能する。また、滞留するガソリンガスが危険濃度に近づいた場合に、窒素ガスを水溶液噴射装置５０から単独で又は加圧水溶液と共に噴射することで、水素設備エリアへのガソリンガスの流れ込みを確実に防止して火災要因となることを未然に防止可能とする。 As described above, the staying combustible gas shielding facility of the present embodiment can more reliably suppress radiant heat and prevent fire spread by injecting nitrogen gas as an inert gas from the aqueous solution injection device 50 alone or together with the pressurized aqueous solution in the event of a fire. Possible. In addition, when the accumulated gasoline gas approaches the hazardous concentration, the nitrogen gas is injected from the aqueous solution injection device 50 alone or together with the pressurized aqueous solution, thereby reliably preventing the gasoline gas from flowing into the hydrogen facility area. It is possible to prevent this from occurring.

なお、図５の実施形態では、水溶液と窒素ガスを別々の配管で別々のヘッド群に供給して噴射しているが、混合器を設けて水溶液と窒素ガスを混合した混合気液を水溶液噴射装置５０のヘッド群に供給して噴射するようにしても良い。このように水溶液噴射装置５０から水溶液と窒素ガスの混合気液を噴射することで、火災時に隣接施設への放射熱の抑制と延焼防止の効果を更に高めることを可能とする。また、水溶液と窒素ガスを混合する混合器は、水溶液噴射装置５０に対する給水配管の途中に設けるか、或いは、ヘッド自体で水溶液と窒素ガスを混合して混合気液として噴射する気液混合構造を備えたヘッドとしても良い。 In the embodiment of FIG. 5, the aqueous solution and nitrogen gas are supplied to different head groups and injected by separate pipes. However, an aqueous solution injection is performed by providing a mixer and mixing the aqueous solution and nitrogen gas. The ink may be supplied to the head group of the device 50 and ejected. Thus, by jetting the mixed gas liquid of the aqueous solution and the nitrogen gas from the aqueous solution injection device 50, it is possible to further enhance the effect of suppressing the radiant heat to the adjacent facility and preventing the spread of fire in the event of a fire. Moreover, the mixer which mixes aqueous solution and nitrogen gas is provided in the middle of the water supply piping with respect to the aqueous solution injection apparatus 50, or the gas-liquid mixing structure which mixes aqueous solution and nitrogen gas with a head itself, and injects it as a gas-liquid mixture. It may be a head provided.

［可動型ヘッドを備えた水溶液噴射装置］
図６は可動型ヘッドを備えた水溶液噴射装置を取り出して示した説明図である。図６に示すように、本実施形態の水溶液噴射装置５０は、給油設備エリアＡ１と水素設備エリアＡ２の間の境界ライン５８の位置に所定深さと幅を持つトラフ６０を形成し、トラフ６０の底部に１本の給水配管６２を設置し、給水配管６２から分岐配管を介してアクチュエータ７５により噴射方向５５ａ，５５ｂに切替え可能な可動型のヘッド５４を設けている。
[ Aqueous solution sprayer with movable head]
FIG. 6 is an explanatory view showing an aqueous solution ejecting apparatus provided with a movable head. As shown in FIG. 6, the aqueous solution injection device 50 of the present embodiment forms a trough 60 having a predetermined depth and width at the position of the boundary line 58 between the oil supply facility area A1 and the hydrogen facility area A2. One water supply pipe 62 is installed at the bottom, and a movable head 54 that can be switched from the water supply pipe 62 to the injection directions 55a and 55b by an actuator 75 via a branch pipe is provided.

可動型のヘッド５４は、図３に示した制御盤５２に設けた制御部７０によるアクチュエータ７５の制御により、車両検出器６６ａにより図１の検知エリアＡ４に進入した車両を検出すると、図６のようにヘッド５４を噴射方向５５ａに向けて加圧水溶液を噴射し、また、車両検出器６６ｂにより図１の検知エリアＡ５に進入した車両を検出すると、図６のヘッド５４‘のように、噴射方向５５ｂに向けて加圧水溶液を噴射し、滞留可燃性ガスの流れ込みを抑止する。 When the movable head 54 detects the vehicle that has entered the detection area A4 of FIG. 1 by the vehicle detector 66a by the control of the actuator 75 by the control unit 70 provided in the control panel 52 shown in FIG. 3, the movable head 54 of FIG. When the pressurized aqueous solution is ejected with the head 54 directed in the ejection direction 55a, and the vehicle that has entered the detection area A5 in FIG. 1 is detected by the vehicle detector 66b, the ejection direction as shown in the head 54 ′ in FIG. The pressurized aqueous solution is sprayed toward 55b to suppress the flow of the staying combustible gas.

また、可動型のヘッド５４を設けたことで、図２のヘッド群を２列に配置した水溶液噴射装置５０に比べ、配管及びヘッド数を低減し、設置スペースも少なくて済む。 Further, by providing the movable head 54, the number of pipes and heads can be reduced and the installation space can be reduced as compared with the aqueous solution ejecting apparatus 50 in which the head groups in FIG. 2 are arranged in two rows.

［本発明の変形例］
（オフサイト型水素ステーション）
上記の実施形態はオンサイト型水素ステーションを設置した場合を例にとるものであったが、オンサイト型ステーションから供給を受けて蓄圧する水素ステーション（オフサイト型水素ステーション）を併設したハイブリッドステーションについても、同様に、滞留可燃ガス遮蔽設備を設けることができる。この場合、図５の実施形態では、水素製造設備で生成される窒素ガスを利用できないことから、図６の不活性ガス供給設備６５には、窒素ガスを充填したガスボンベを設置して窒素ガスを不活性ガスとして供給する。
[Modification of the present invention]
(Offsite hydrogen station)
The above embodiment is an example in which an on-site type hydrogen station is installed, but the hybrid station is provided with a hydrogen station (off-site type hydrogen station) that is supplied with pressure from the on-site type station and accumulates pressure. Similarly, a stagnant combustible gas shielding facility can be provided. In this case, in the embodiment of FIG. 5, since the nitrogen gas generated in the hydrogen production facility cannot be used, the inert gas supply facility 65 of FIG. 6 is provided with a gas cylinder filled with nitrogen gas to supply the nitrogen gas. Supply as inert gas.

（その他の設備への利用）
上記の実施形態は、固定給油設備と水素ステーションが併設された場合を想定しているが、危険物施設に単独（例えば給油取扱所と道路が面している箇所）、危険物施設と併設された設備（例えば給油取扱所とコンビニなどの併設設備）に設置しても、相互の火災要因を排除することが可能である。
（制御盤の共用化）
上記の実施形態は、消火制御盤と滞留可燃ガス遮蔽設備の制御盤を別に設けているが、両者の制御機能を含めた１つの制御盤としても良い。 (Use for other equipment)
In the above embodiment, it is assumed that a fixed refueling facility and a hydrogen station are provided. However, a single facility (for example, a location where a refueling station and a road face) are installed in a hazardous material facility. It is possible to eliminate the mutual fire factor even if it is installed in a facility (for example, a facility for refueling and a convenience store).
(Shared control panel)
In the above-described embodiment, the fire extinguishing control panel and the control panel for the staying combustible gas shielding facility are separately provided, but a single control panel including both control functions may be used.

（ポンプ設備の共用化）
上記の実施形態は、消火設備用のポンプ設備と滞留可燃ガス遮蔽設備のポンプ設備を別々に設けているが、1つのポンプ設備に統合して加圧水溶液を供給するようにしても良い。 (Share pump facilities)
In the above embodiment, the pump equipment for the fire extinguishing equipment and the pump equipment for the staying combustible gas shielding equipment are separately provided. However, the pressurized aqueous solution may be integrated into one pump equipment.

（滞留可燃ガス遮蔽設備の加圧水の噴射）
上記の実施形態にあっては、通常監視中に、境界ラインに対する車両の進入を検出して水溶液噴射装置に設けた進入側のヘッド群から加圧水溶液を噴射するようにしているが、車両の進入の有無に拘らず、常時、水溶液噴射装置から加圧水溶液を継続して噴射することで、滞留可燃ガスの相互の流れ込みを抑止するようにしても良い。
(Injection of pressurized water in stagnant combustible gas shielding equipment)
In the above embodiment, during normal monitoring, the entry of the vehicle to the boundary line is detected and the pressurized aqueous solution is ejected from the head group on the entry side provided in the aqueous solution ejection device. Regardless of the presence or absence of this, the pressurized aqueous solution may be continuously injected from the aqueous solution injection device at all times to prevent the staying combustible gas from flowing into each other.

（水溶液噴射装置のヘッド配置）
上記の実施形態は、境界ラインの両側に複数のヘッドを配置したヘッド群を２列に配置して車両進入側のヘッド群を選択して加圧水溶液を噴射しているが、ヘッド群を一列とし、車両の進入を検出して、ヘッド群から直上に加圧水溶液を噴射して遮蔽壁となる水幕を形成して相互の滞留可燃ガスの流れ込みを抑止するようにしても良い。
( Aqueous solution jetting device head arrangement)
In the above embodiment, the head group in which a plurality of heads are arranged on both sides of the boundary line is arranged in two rows, the head group on the vehicle entry side is selected, and the pressurized aqueous solution is ejected. Alternatively, the entry of the vehicle may be detected, and the pressurized aqueous solution may be sprayed directly above the head group to form a water curtain serving as a shielding wall, thereby preventing the flow of the staying combustible gas.

（電磁弁）
上記の実施形態は、車両を検出して加圧水溶液の供給制御に使用する制御弁として、開閉応答の早い電磁弁を使用しているが、図６の窒素ガスを選択する電磁弁９８，９９については、早い開閉応答を必要としないことから、電動弁としても良い。 (solenoid valve)
In the above embodiment, an electromagnetic valve having a quick opening and closing response is used as a control valve for detecting the vehicle and controlling the supply of the pressurized aqueous solution. However, the electromagnetic valves 98 and 99 for selecting nitrogen gas in FIG. Since a quick opening / closing response is not required, a motor-operated valve may be used.

（その他）
また、本発明は、その目的と利点を損なうことのない適宜の変形を含み、更に上記の実施形態に示した数値による限定は受けない。 (Other)
The present invention includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

１０：ハイブリッドステーション
１２：固定給油設備
１４：水素ガスディスペンサー
１６：防火壁
１８：排水溝
２０：原燃料タンク
２２：水素製造設備
２４：圧縮機
２５：貯蔵設備
２６：事務所
３２：火災受信盤
３４：火災感知器
３５：消火制御盤
３６：炎検知器
３８：水素検出器
４０：温度検出器
４２：起動装置
４４：水噴霧用ポンプ設備
４５：消火器
４６：非常電源設備
４８：水噴霧ヘッド
５０：水溶液噴射装置
５２：制御盤
５４ａ，５４ｂ：ヘッド
５６ａ，５６ｂ：ヘッド群
５８：境界ライン
６０：トラフ
６１：蓋
６２ａ，６２ｂ：配管
６４：ポンプ設備
６５：不活性ガス供給設備
６６ａ，６６ｂ：車両検出器
６８：ガソリンガス検出器
７０：制御部
７２：表示部
７４：操作部
７５：アクチュエータ
７６，９０：コンプレッサ
７８，９２：リザーバタンク
８０，９４：圧力スイッチ
８２，９６：コンプレッサ制御盤
８６，８８，９８，９９：電磁弁
10: Hybrid station 12: Fixed oil supply facility 14: Hydrogen gas dispenser 16: Fire barrier 18: Drain 20: Raw fuel tank 22: Raw fuel tank 24: Hydrogen production facility 24: Compressor 25: Storage facility 26: Office 32: Fire receiver 34 : Fire detector 35: Fire extinguishing control panel 36: Flame detector 38: Hydrogen detector 40: Temperature detector 42: Starter 44: Water spray pump equipment 45: Fire extinguisher 46: Emergency power supply equipment 48: Water spray head 50 Aqueous solution injection device 52: Control boards 54a, 54b: Heads 56a, 56b: Head group 58: Boundary line 60: Trough 61: Lids 62a, 62b: Piping 64: Pump equipment 65: Inert gas supply equipment 66a, 66b: Vehicle Detector 68: Gasoline gas detector 70: Control unit 72: Display unit 74: Operation unit 75: Actuator 76, 90: Compressors 78, 9 : Reservoir tank 80,94: pressure switch 82,96: compressor control panel 86,88,98,99: solenoid valve

Claims

In the disaster prevention facility of the hybrid station where the fixed oil supply facility and the hydrogen gas dispenser are arranged adjacent to each other on the same site,
Where the vehicle passes between the fixed fueling facility and the hydrogen gas dispenser, a water curtain is formed by spraying an aqueous solution upward from the road surface side, and the destination of the staying combustible gas accompanying the movement of the vehicle A disaster prevention facility for a hybrid station, which is equipped with a stagnant combustible gas shielding facility that prevents the flow into the station.

2. The disaster prevention equipment for a hybrid station according to claim 1, wherein the staying combustible gas shielding equipment is a boundary across a road surface in a vehicle traffic direction between an installation area of the fixed fuel supply equipment and an installation area of the hydrogen gas dispenser. A disaster prevention facility for a hybrid station, characterized in that an aqueous solution ejecting device in which at least two rows of head groups in which a plurality of heads that form a water curtain are arranged by spraying an aqueous solution is arranged on a line.

2. The disaster prevention equipment for a hybrid station according to claim 1 , wherein the staying combustible gas shielding equipment is a boundary across a road surface in a vehicle traffic direction between an installation area of the fixed fuel supply equipment and an installation area of the hydrogen gas dispenser. Provided in the line is an aqueous solution ejecting device in which a head group in which a plurality of heads for ejecting an aqueous solution are arranged is arranged, and the plurality of heads can change the direction in which the aqueous solution is ejected. .

4. The disaster prevention equipment for a hybrid station according to claim 2 , wherein the staying combustible gas shielding equipment is provided with a gas / liquid mixer to produce a gas / liquid mixture in which water and gas are mixed to produce the aqueous solution. A disaster prevention facility for a hybrid station, characterized in that gas or liquid can be supplied to a head array provided in an injection device, and water or a gas mixture is injected as an aqueous solution.

In the disaster prevention equipment of the hybrid station according to claim 4,
The said gas-liquid mixture is made into the gas-liquid produced | generated by mixing water and an inert gas, The disaster prevention equipment of the hybrid station characterized by the above-mentioned.

In the disaster prevention equipment of the hybrid station according to claim 5,
The staying combustible gas shielding facility sprays a mixed gas / liquid mixture of water and inert gas from the head row as an aqueous solution when a fire is detected.

7. The disaster prevention equipment for a hybrid station according to claim 1, wherein the staying combustible gas shielding equipment constantly injects an aqueous solution.

4. The disaster prevention equipment for a hybrid station according to claim 2 , wherein the staying combustible gas shielding equipment is provided with a control unit for injecting an aqueous solution based on a predetermined detection signal. .

In the disaster prevention equipment of the hybrid station according to claim 8,
The staying combustible gas shielding facility is provided with a vehicle detector for detecting a vehicle entering the boundary line,
The control unit, when the vehicle detector detects a vehicle entering the boundary line, injects an aqueous solution on the vehicle entrance side, the disaster prevention equipment for a hybrid station.

In the disaster prevention equipment of the hybrid station according to claim 8,
The stagnant combustible gas shielding facility is provided with a gasoline gas detector that is disposed in the vicinity of the boundary line and detects the concentration of gasoline gas vaporized from the fixed fueling facility,
The said control part injects aqueous solution toward the installation area side of the said fixed oil supply equipment, when the density | concentration detected with the said gasoline gas detector exceeds predetermined density | concentration, The disaster prevention equipment of the hybrid station characterized by the above-mentioned.

In the disaster prevention equipment of the hybrid station according to claim 8,
The staying combustible gas shielding facility is provided in the boundary line and the vicinity thereof, and is provided with a hydrogen detector that detects the concentration of hydrogen gas on the hydrogen gas dispenser facility side,
The said control part, when the density | concentration detected with the said hydrogen detector exceeds predetermined density | concentration, injects aqueous solution toward the installation area side of the said hydrogen gas dispenser equipment, The disaster prevention equipment of the hybrid station characterized by the above-mentioned.

In the disaster prevention equipment of the hybrid station according to claim 8, the staying combustible gas shielding equipment is provided with an operation unit capable of operating the injection of the aqueous solution manually,
The said control part injects aqueous solution based on the signal of the said operation part, The disaster prevention equipment of the hybrid station characterized by the above-mentioned.

In the disaster prevention equipment for a hybrid station according to any one of claims 1 to 12,
The stagnant combustible gas shielding equipment normally forms a water curtain of a predetermined height corresponding to the bottom of the vehicle from the road surface, from the fire signal or fire extinguishing equipment transferred from the fire alarm equipment installed in the hydrogen station A disaster prevention equipment for a hybrid station, characterized in that when a fire extinguishing start signal is received, a wider water curtain is formed than in a normal time.

In the disaster prevention equipment of the hybrid station according to claim 2 or 3 ,
The staying combustible gas shielding facility is a disaster prevention facility for a hybrid station, wherein an aqueous solution and an inert gas can be selectively or simultaneously supplied to one or a plurality of rows of head groups provided in the aqueous solution injection device.

In the disaster prevention equipment of the hybrid station according to claim 3,
The staying combustible gas shielding facility can selectively supply an aqueous solution and an inert gas to a group of heads having a plurality of heads that can change the direction in which the aqueous solution is provided in the aqueous solution injection device. A disaster prevention facility for hybrid stations.