JPH11276612A - Fire distinguishing system for oil station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily install fire extinguishing equipment and to perform initial fire extinguishment by providing a fire extinguishing chemical unit on an island. SOLUTION: A monitoring person who receives the report of the occurrence of a fire operates an operation panel 31, outputs signals to a valve unit 10 from the operation panel 31 and opens a motor-driven ball valve pertinent to the area of the fire. Since the fire extinguishing chemical unit 20, the valve unit 10 and a fire extinguishing nozzle SH are provided closely on the island 4, almost simultaneously with the opening of the valve, a foam solution is discharged from foam heads SH1 and SH2 , an oil feed stop area SA1 is covered with fire extinguishing foam and a fire source is extinguished. At the time, since the foam head SH is positioned so as to avoid a front wheel and a rear wheel at the lower part of an automobile 3, the foam solution smoothly flows without being obstructed by a car body and is spread in the entire oil feed car stop area SA1 . Thus, since fire extinguishing efficiency is extremely high, the initial fire extinguishment is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing system for a gas station which supplies oil such as gasoline to an automobile.

[0002]

2. Description of the Related Art In a conventional refueling station, a specialized worker guides a car to stop at a refueling stop area near a refueling device to perform refueling. For safety reasons, fires are prevented by measures such as stopping the engine during refueling and smoking cessation.

[0003] Conventionally, as described above, a specialized worker performs refueling work, so that there are few work mistakes, and even if a fire occurs during refueling, the worker runs immediately and performs fire-fighting activities. Therefore, it is sufficient to install a mobile fire extinguisher as fire extinguishing equipment.

However, in recent years, a self-stand, that is, a refueling station where a driver himself performs refueling work without a specialized worker for refueling work has appeared, and the refueling system has been recognized by law. In this self-stand, measures such as stopping the engine or stopping smoking are not enough.Furthermore, a driver who is unfamiliar with refueling work may cause a fire, for example, gasoline leaking from the refueling nozzle device may fall on the floor. Then, the gasoline may ignite, and other accidents may occur.

Therefore, a fire extinguisher filled with a fire extinguisher or a fire extinguisher is arranged for each island, and when a fire occurs, the fire extinguishing activities are performed manually.

[0006] However, it is very dangerous for a refueling worker to operate a fire extinguisher to extinguish a fire in a place where gasoline is spilled.

Therefore, in order to solve this problem, a fire extinguishing section is provided in each refueling stop area around the island where the refueling device is installed, a fire extinguishing nozzle is provided in each fire extinguishing section, and the fire extinguishing nozzle is connected by a connecting pipe. The fire extinguisher unit is connected to a unit and controlled by an operation panel provided in a building or the like.

[0008]

In the prior art, one fire extinguishing agent unit is provided and a fire extinguishing agent is supplied to each fire extinguishing nozzle via a valve unit. However, a large fire extinguishing agent unit is required in order to sufficiently supply the fire extinguishing agent to each fire extinguishing nozzle.

However, large fire extinguishing agent units cannot be arranged on or around the island due to space limitations. For this reason, a fire extinguishing agent unit is provided in a building far away from the island and connected to a fire extinguishing nozzle via a connecting pipe.

[0010] However, piping work for connecting the fire extinguishing agent unit and the fire extinguishing nozzle is troublesome and costly. In addition, when a fire occurs, since the fire extinguishing agent is filled in the connection pipe by switching the valve unit and then discharged from the fire extinguishing nozzle, it takes a long time to start discharging the fire extinguishing agent. Therefore, if the piping path is lengthened, the initial fire extinguishing may be difficult.

The present invention has been made in view of the above circumstances, and has as its object to make it possible to easily install fire extinguishing equipment and perform initial fire extinguishing.

[0012]

According to the present invention, there is provided an island in which a refueling device is installed, a fire extinguishing section provided at a refueling stop position around the island, a fire extinguishing nozzle provided for each of the fire extinguishing sections, and A fire extinguishing system for a gas station, comprising: a fire extinguishing agent unit that supplies a fire extinguishing agent to the fire extinguishing nozzle; and an operation panel that is provided at a position away from the island and controls the fire extinguishing agent unit; A fire extinguishing system for a gas station, wherein a fire extinguishing agent unit is provided on an island.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The inventor of the present invention has noticed that the problem of the prior art is caused by supplying a fire extinguishing agent to all fire extinguishing nozzles with one fire extinguishing agent unit. Therefore, the present inventor has attempted to solve the above problem by arranging a fire extinguishing agent unit for each island.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. A plurality of islands 4 on which the refueling device 1 is installed are arranged in a refueling station without a specialized refueling worker, a so-called self-stand. The island 4 is provided with a fire extinguishing agent unit 20 and a valve unit 10, and the periphery thereof is a so-called explosion-proof area. The island 4 is a hill protruding from the floor surface 7 by a height H, and the protruding height H is, for example, 10 to 20 cm. A plurality of fire extinguishing heads SH are embedded in the side walls 4a and 4b of the island. As the fire extinguishing head SH, for example, a foam head is used, but it is sufficient that the fire extinguishing agent is appropriate for the fire extinguishing agent to be used, and is not necessarily limited to this.

The foam head SH is provided in a refueling stop area SA.
The bubble head SH is arranged in a horizontal direction.
The number, arrangement position, arrangement direction, and the like of are determined as needed. For example, the foam head SH may be disposed so as to discharge the fire extinguishing agent obliquely downward with respect to the lower part of the side of the vehicle being refueled.

On both sides of the island 4, a refueling stop area S
Although A is formed, each refueling stop area SA is a fire extinguishing section. This fire extinguishing section is a place where gasoline may leak at the time of refueling, and its range is expanded or reduced as necessary.

Each foam head SH is connected to a fire extinguishing agent unit 20 via a valve unit 10. The fire extinguishing agent unit 20 is connected to the primary side of the valve unit 10, and the primary side pipe 15 is branched by a required number to the fire extinguishing section, and the electric ball valves 10a and 10b are provided respectively. Is connected to each foam head SH.

The fire extinguishing agent unit 20 includes a foam aqueous solution tank 25 for storing an aqueous foam solution as a fire extinguishing agent, an N2 pressurized container 27 that communicates with the foam aqueous solution tank 25 via a pressure regulator 26, Pressure switch 28 provided between the unit 10 and the pipe 15 on the primary side
And

The units 10 and 20 are controlled by an operation panel 31. This operation panel 31 is provided in an operator room 30 of a building where a supervisor is present.

Next, the operation of this embodiment will be described. The driver drives the car 3 and enters the refueling stop area SA1 of the island 4, stops the car 3 and turns off the engine. Thereafter, the driver gets off the vehicle 3, removes a fueling nozzle (not shown) locked on a side surface of the fueling device 1, and refuels a gasoline tank of the vehicle while operating a lever of the fueling nozzle.

At this time, when gasoline leaks from the refueling nozzle and falls into the refueling stop area SA1 and ignites, a supervisor in the operator room 30 is notified that a fire has occurred.

The observer operates the operation panel 31, for example, when selecting a fire section out of the fire extinguishing sections displayed on the display, opens the solenoid S of the N2 pressurized container 27. Then, the pressurized nitrogen in the N2 pressurized container 27 is adjusted in pressure by the pressure regulator 26 to push out the aqueous foam solution in the aqueous foam solution tank 25, and the pushed aqueous foam solution operates the pressure switch 28 to operate the operation panel. An activation signal is output to 31.

At the same time, a signal is output from the operation panel 31 to the valve unit 10 to open the electric ball valve 10b corresponding to the fire section. This fire extinguisher unit 2
0, the valve unit 10 and the extinguishing nozzles SH is provided on the island 4 in close proximity, substantially simultaneously foam solution from the foam head SH _1, SH ₂ and opening of the valve 10b is released, the fuel supply stop area SA1 is , Covered with fire extinguishing foam B,
The fire source FS disappears.

At this time, since the foam head SH is located so as to remove the front wheel and the rear wheel of the lower portion 3d of the automobile 3, the foam aqueous solution flows smoothly without being hindered by the vehicle body, and the refueling stop area. Spread throughout SA1. Therefore, the fire extinguishing efficiency is extremely good, and the initial fire extinguishing becomes easy. Further, the activation of the fire extinguishing agent unit 20 and the selection of the electric ball valve 10d of the valve unit 10 may be different operations on the operation panel 31.

A second embodiment of the present invention will be described with reference to FIGS. 4 to 6. The difference between this embodiment and the above embodiment is as follows. Piping recesses CP are provided on both sides of the island 4, and the fire extinguishing head SH and its piping 3 are provided in the piping recesses CP.
0 was stored. In this way, maintenance for exchanging the fire extinguishing head SH and the pipe 30 can be easily performed.

The pipe recess CP is provided with a cover plate 35 in order to prevent intrusion of dust and the like and to secure the lubrication work. The cover plate 35 is provided with an opening WD at a position facing the fire extinguishing head SH, and the fire extinguishing agent of the fire extinguishing head SH is discharged through the opening WD. The size, position, and the like of the opening WD are appropriately selected in consideration of the relationship between drug release and the like. In addition, the opening WD may have a structure that can always be covered, and may be opened at the time of fire.
At this time, the momentum of the fire extinguishing agent from the fire extinguishing head SH and N2
A mechanism that is opened by the gas pressure of the pressurized container 27 may be used.

A third embodiment of the present invention will be described with reference to FIG. 7. The difference from the first embodiment is as follows. (1) Independent fire extinguishing agent units 20A and 20B are arranged on the island 4 corresponding to the fire extinguishing sections SA and SA1, respectively. Therefore, since there is no need to switch and use the fire extinguishing agent unit, the valve unit 10 is omitted, and the starting and discharging operation is simplified.

(2) The operation panel 31 is connected to the fire extinguisher units 20A and 20B via explosion-proof wirings LA and LB. (3) The fire extinguishing agent unit 20 itself has an explosion-proof structure.

The embodiment of the present invention is not limited to the above. For example, the operation of the operation panel may be performed manually by the observer of the stand together with the confirmation of the ignition. It may be automatically activated by a sensor for detecting a flame or the like, or a camera device capable of photographing the entire image to specify a fire area, and may be configured to always switch from manual to automatic.

[0030]

According to the present invention, since the fire extinguishing agent unit is provided in the island as described above, the piping from the conventional fire extinguishing agent unit to the island is not required. Therefore, the construction of the fire extinguishing equipment is facilitated, and at the time of fire occurrence, the release of the fire extinguishing agent from the fire extinguishing head is earlier than in the conventional example, thereby enabling the initial fire extinguishing. Further, since the fire extinguishing system is controlled using the operation panel located at a position distant from the island, there is no need for the operator to approach the vicinity of the fire source. for that reason,
Fire extinguishing work can be performed safely.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a detailed view of a fire extinguishing agent unit, a valve unit, and an operation panel.

FIG. 3 is an enlarged cross-sectional view taken along the line III-III of FIG. 1;

FIG. 4 is a plan view showing a second embodiment of the present invention.

FIG. 5 is a view showing a third embodiment of the present invention, and is an enlarged cross-sectional view of an island.

FIG. 6 is a side view showing the third embodiment.

FIG. 7 is a sectional view taken along line VII-VII of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refueling device 4 Island 10 Valve unit 20 Fire extinguishing agent unit 31 Operation panel SH Fire extinguishing head SA Fire extinguishing section CP Piping recess

Claims (5)

[Claims] An island in which a fueling device is installed, a fire extinguishing section provided in a fueling stop area around the island, a fire extinguishing nozzle provided for each fire extinguishing section, and a fire extinguishing agent supplied to the fire extinguishing nozzle. A fire extinguishing system for a refueling station, comprising: a fire extinguishing agent unit, and a control panel provided at a position distant from the island and controlling the fire extinguishing agent unit; A fire extinguishing system for a gas station. 2. The fire extinguishing system of a gas station according to claim 1, wherein a plurality of islands are provided, and each island includes one extinguishing agent unit and a valve unit. 3. A fire extinguisher according to claim 1, wherein a plurality of islands are provided, each island having a respective fire extinguishing agent unit corresponding to its own fire extinguishing section.
The described fire station fire extinguishing system. 4. An operation panel is provided outside an explosion-proof area around a refueling device, and the operation panel is connected to a fire extinguishing agent unit via an explosion-proof wiring.
The fire extinguishing system of a gas station according to claim 2 or 3. 5. The fire extinguishing system according to claim 1, wherein the fire extinguishing head is disposed on a side wall surface of the island and discharges a fire extinguishing agent forward. .