JP3629632B2 - Gas station fire extinguishing system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire extinguishing system for a gas station that supplies oil such as gasoline to an automobile.
[0002]
[Prior art]
In a conventional filling station, a specialized worker guides an automobile to stop in a filling stop area in the vicinity of a filling device and performs filling. For safety reasons, fires are prevented by stopping the engine during refueling and taking measures such as quitting smoking.
[0003]
Conventionally, as mentioned above, specialized workers have been refueling work, so there are few work mistakes, and even if a fire occurs during refueling, the worker can immediately run and start fire fighting activities Therefore, it was enough to install a large fire extinguisher such as a mobile fire extinguisher.
[0004]
However, in recent years, a self-stand, that is, a refueling station where a driver himself performs a refueling operation without a specialized worker performing the refueling operation has appeared, and the refueling system has been legally approved. In this self-stand, measures such as stopping the engine or quitting smoking are not sufficient. In addition, a fire caused by the carelessness of a driver unfamiliar with refueling work, especially when gasoline leaked from the refueling nozzle falls to the floor. Accidents that ignite the gasoline are expected to increase.
[0005]
[Problems to be solved by the invention]
Therefore, the present inventor has made the following invention in order to solve this problem.
[0006]
A fire-extinguishing agent unit for supplying a fire-extinguishing agent, a fire-extinguishing nozzle for discharging the fire-extinguishing agent, a valve unit that can be selectively supplied to the fire-extinguishing nozzle by a branch pipe branched from the fire extinguishing agent unit, and these are controlled A fire station fire extinguishing system including an operation panel, wherein a fire extinguishing section of a fire extinguishing nozzle is set to a side of an island where a fueling device is installed.
[0007]
However, when the piping is provided on the ground, the construction work is easy, but on the other hand, it obstructs the refueling work, and dust tends to accumulate in the shadow of the piping. Also, when burying the pipe, the construction is troublesome and time-consuming, and it is difficult to redraw the pipe during maintenance.
[0008]
In view of the above circumstances, an object of the present invention is to facilitate construction and maintenance of a fire extinguishing system.
[0009]
[Means for Solving the Problems]
In view of the above points, the present invention provides a fuel station fire extinguishing system in which a refueling stop area is provided around an island where a refueling device is disposed, and a fire extinguishing nozzle directed to the refueling stop area is provided. Forming a piping space, disposing the fire-extinguishing nozzle and its piping, and covering the piping space with a mesh plate, the mesh plate being continuous with the side surface and the top surface of the island. It consists of a side part and a horizontal upper surface part.
[0010]
The piping space is characterized by forming a recess in the island.
[0011]
Therefore, by covering the piping space with a mesh plate, it is possible to visually identify the internal state, and it is possible to easily perform water discharge cleaning so that dust does not collect.
[0012]
Furthermore, since the piping space is formed with a recess in the island, there is no need to expand the space between the actual fueling device and the automobile to make a piping space.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS. In a so-called self-type gas station, a plurality of islands 4 provided with the fueling device 1 are arranged, and only one island 4 is shown in the figure. The periphery of the oil supply device 1 on the island 4 is a so-called explosion-proof area. The island 4 is a hill protruding from the floor surface 7, and the protruding height is, for example, 10 to 20 cm. Piping recesses CP as piping spaces are formed on both sides of the island 4, and a plurality of bubble heads SH and their pipings are provided in the piping recesses CP. In this embodiment, the foam head SH suitable for the fire extinguishing agent is used as the fire extinguishing nozzle, but the present invention is not necessarily limited thereto, and any foam head may be used as long as it is appropriate for the fire extinguishing agent to be used.
[0014]
As shown in FIGS. 5 and 6, the foam head SH is horizontally arranged in the direction of the refueling stop area SA. The number, position, direction, etc. of the foam head SH are arranged. Is appropriately selected as necessary. The pipe concave portion CP is provided so as to cover the net plate 35. The net plate 35 includes a horizontal upper surface portion 35a and a vertical side surface portion 35b, and is locked to the side surface and the upper surface of the pipe concave portion CP. It is continuous with the side surface and the upper surface of 4. The mesh plate 35 is provided with an opening WD at a position opposed to the foam head SH. The material and shape of the mesh plate 35 and the size and shape of the opening WD are related to the discharge of the drug from the fire extinguishing nozzle. In this case, the tip portion of the foam head SH is fitted in the opening WD of the mesh plate. In addition, the opening of the opening WD or the foam head SH may always be covered, and at this time, a mechanism for opening it by the momentum of the extinguishing agent from the extinguishing nozzle SH or the pressure of the pressurized gas may be provided. Good.
[0015]
A refueling stop area SA is formed on both sides of each island 4. Each refueling stop area SA is a fire extinguishing section. This fire extinguishing section is a place where gasoline may leak during refueling, but its range is expanded or contracted as necessary.
[0016]
Each foam head SH is connected to the fire extinguishing agent unit 20 via the valve unit 10. As shown in FIG. 4, the valve unit 10 has a fire extinguishing agent unit 20 connected to its primary side, and electric ball valves 10a, 10b so as to branch the necessary number of pipes 15 on the primary side for each fire extinguishing section SA1, SA2. And the secondary side of each electric ball valve 10a, 10b is connected to each foam head SH.
[0017]
As shown in FIG. 4, the fire extinguishing agent unit 20 includes a foam aqueous solution tank 25 that stores a foam aqueous solution as a fire extinguishing agent, a nitrogen pressurized container 27 that communicates with the foam aqueous solution tank 25 via a pressure regulator 26, and a tank 25. And a pressure switch 28 provided between the piping 15 on the primary side of the valve unit 10. Both units 10 and 20 are controlled by an operation panel 31, and this operation panel 31 is provided in an operator room 30 of a building where a monitoring person is present.
[0018]
Next, the operation of this embodiment will be described. The driver drives the automobile 3 and enters the refueling stop area SA1 of the island 4, stops the automobile 3 and turns off the engine. Thereafter, the driver gets out of the automobile 3, removes a fuel nozzle (not shown) that is locked to the side surface of the fueling device 1, and supplies fuel to the gasoline tank of the automobile 3. At this time, when the gasoline leaked from the refueling nozzle falls into the refueling stop area SA1 and ignites, the noticed driver contacts the monitoring person in the operator room 30, or the monitoring person directly notices.
[0019]
When the monitor operates the operation panel 31, for example, selects a fire-occurring section among fire extinguishing sections displayed on a display not shown in detail, a signal from the operation panel 31 is input to the fire extinguishing agent unit 20. The solenoid S of the nitrogen pressure vessel 27 is opened. Then, the pressurized nitrogen in the nitrogen pressurized container 27 is regulated by the pressure regulator 26 to push out the foam aqueous solution in the foam aqueous solution tank 25, and the extruded foam aqueous solution operates the pressure switch 28 to operate the operation panel 31. The start signal is output to
[0020]
At the same time when the solenoid S of the nitrogen pressurization container 27 is opened, a signal is also output from the operation panel 31 to the valve unit 10 to open the electric ball valve 10b corresponding to the fire section SA1. Then, the foam fire-extinguishing liquid is supplied to the foam heads SH1 and SH2, and the fire-extinguishing foam is ejected to the fuel supply stop area SA1 through the opening WD. Therefore, the area SA1 is covered with the fire extinguishing bubble B, and the fire source FS disappears.
[0021]
At this time, the bubbles from the bubble head SH are discharged toward the lower portion 3d of the automobile 3 and spread over the entire fuel supply stop area SA1 regardless of the position of the wheels. At this time, as the properties of the foam, a highly foamed material having a large foam volume relative to the liquid volume may be used, but it is preferable to use a material having a property of forming a curtain on the surface rather than the expansion ratio. It is preferable that the curtain spread quickly. Thereby, the fire extinguishing efficiency is extremely improved and initial fire extinguishing becomes easy. In addition, activation of the fire extinguishing agent unit 20 and the valve unit 10 may be performed by another operation, or may be an operation procedure for starting discharge from selecting a section.
[0022]
At the time of construction and maintenance of the foam head SH and its piping, the mesh plate 35 is removed to expose them, and after necessary processing, the mesh plate 35 is returned to its original position. At this time, since the mesh plate 35 is lighter than the metal plate on one side, the work is easy, and there is no worries about the scaffolding by using a plate such as a so-called checker plate that covers a side groove of the road. Absent. Further, even when dust is collected in the concave portion CP for piping, since it is covered with the mesh plate 35, the dust can be discriminated by appearance, and the inside can be washed away by water flow without removing the mesh plate 35 at the time of cleaning. . In particular, since gas stations are frequently cleaned, garbage is not collected by washing with water all the time.
[0023]
In the above system, only the periphery of each island is shown, but the entire gas station can be divided into areas, and the valve unit can be further branched to form a fire extinguishing section. An overall fire extinguishing system may be configured by combining conventional systems.
[0024]
Further, in the above system, the operator in the operator room 30 is a manual system that is manually operated along with the confirmation of the ignition, but it is possible to use a sensor that detects heat, flame, etc. for each area or a camera device that can be monitored entirely. It may be an automatic system that monitors and automatically activates and discharges to a necessary area when it is ignited. Further, manual and automatic switching is possible, and switching may be performed depending on the presence or absence of a supervisor.
[0025]
As described above, the fire extinguishing system is provided with the oil supply stop areas SA1 and SA2 around the island 4 where the fuel supply device 1 is provided, and the fire extinguishing nozzle such as the foam head SH directed to the fuel supply stop areas SA1 and SA2. A piping space such as a concave portion CP for piping is formed on the island 4 and a fire-extinguishing nozzle such as a foam head SH is disposed, and a piping space such as the concave portion CP for piping is covered with a net plate 35. In addition, since the mesh plate 35 is light, the work is easy and there is no anxiety even when it is used as a scaffold. Further, there is an effect that the dust in the pipe recess CP can be distinguished from the appearance and the inside can be washed away with a water flow.
[0026]
In addition, the piping space such as the concave portion CP for piping does not need to be widened between the actual fueling device and the automobile, and by being flush with the upper surface and the side surface of the island 35, there is an effect that it does not interfere with the scaffolding or the like. is there.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a side view of FIG.
3 is a cross-sectional view of FIG.
4 is a configuration diagram of each unit in FIG. 1;
FIG. 5 is an enlarged view of FIG. 1;
6 is a side view of FIG. 5. FIG.
[Explanation of symbols]
1 Refueling device 35 Net plate 4 Island CP Piping recess SA1, SA2 Refueling stop area SH Foam head

Claims (1)

In a fire station fire extinguishing system provided with a fuel stop area around an island where a fueling device is disposed, and provided with a fire extinguishing nozzle directed to the fuel stop area,
Forming a recess in the island to form a piping space, disposing the fire extinguishing nozzle and its piping, and covering the piping space with a mesh plate;
The sprinkler fire extinguishing equipment, characterized in that the mesh plate comprises a side surface and an upper surface of the island, and a vertical side surface portion and a horizontal upper surface portion which are continuous with each other.

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