JPH09302999A - Fire fence for filling station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire fence capable of being easily executed and lowering a construction cost. SOLUTION: Plural pairs of fire plates 1a and 1b opposed to the inside and the outside to each other are erected in a state to connect them in the horizontal direction along a boundary between sections, and a water entering preventing cap 1c with long length extended in the horizontal direction is fitted to upper opening ends of plural pairs of fire plates 1a and 1b from the outside. A gap capable of passing through space held with the fire plates 1a and 1b and atomospheric air is formed between the lower end of the cap 1c and the outside surfaces of plural pairs of fire plates 1a and 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire fence for a gas station installed upright at a boundary between a gas station section and an adjacent area, in order to prevent a fire generated at the gas station from spreading to buildings and the like adjacent to the gas station. About. In detail, underground tanks for oil storage, refueling equipment,
The present invention relates to a fire fence for a gas station that is set up at the boundary between an office building, a gas station section where inspection and repair facilities are installed, and the adjacent land.

[0002]

2. Description of the Related Art At a gas station, as shown in FIG. 1, an underground tank 10 for storing petroleum, a fueling device 20, an office building 3
0.Other inspection / repair facilities are provided, and in the event of a fire igniting leaked petroleum and a fire, it is necessary to check the boundary with the adjacent land to prevent the spread of fire to the buildings, etc. It is obligatory to stand the fire wall 40.

[0003] As a conventional fire protection fence 40, one having the following configuration is known. That is, when the fire protection fence 40 is erected, as shown in FIG. 7 and FIG. Concrete foundation 52
(About 900 mm in height) is buried. Next, a rectangular parallelepiped (400 mm in length, 75 mm in width, 200 mm in height) concrete block 41 is stacked on the concrete foundation 52 in a vertical flat plate shape (2 m in height). As shown in FIG. 8, for example, about 3.
Columns 42 made of reinforced concrete are erected at intervals of 2 meters. A concrete floor 53 is stretched on the ground.

[0004]

However, the above-mentioned conventional fire wall has the above-mentioned stacked concrete blocks 41.
Therefore, a great deal of time is required for the stacking and hardening of the joints. Therefore, there is a problem that the construction period becomes long. Moreover, since the weight of the concrete block 41 is large, the concrete foundation 52 supporting the concrete block 41 becomes large in proportion to the weight and the cost becomes high.

Therefore, an object of the present invention is to provide a fire fence for a gas station, which is particularly easy to construct and can be manufactured at a low cost.

[0006]

In order to achieve the above-mentioned object, a fire fence (1) for preventing the spread of a fire in a gas station to an adjacent building or the like is provided inside and outside along a boundary of a section. A plurality of pairs of fire plates (1a, 1b) facing each other are erected in a horizontally connected state, and the plurality of pairs of fire plates (1a, 1b) are installed.
(a, 1b) is fitted with a horizontally extending water intrusion prevention cap (1c) on the upper open end, and further the lower end of the cap (1c) and the outer surface of a plurality of pairs of fire protection plates (1a, 1b). And a space (S1) that allows the space sandwiched between the fire prevention plates (1a, 1b) to communicate with the outside air (claim 1).

Further, another fireproof wall (1) of the gas station of the present invention
In addition to the configuration of the invention of claim 1, a plurality of pairs of fireproof plates (1a, 1b) are erected on a concrete base (2) erected along the section. (Claim 2).

The symbols in parentheses described in the means for solving the above problems correspond to the symbols described in the drawings and the embodiments of the invention described later.

According to the first aspect of the present invention, most of the members can be mass-produced in a factory, so that they are inexpensive and easy to assemble. Moreover, since the space between the fireproof plates is hollow and the weight is lighter than that of the concrete block made of the conventional example, the size of the foundation is reduced and the cost is reduced. Furthermore, since the air in the space sandwiched by multiple pairs of fire plates communicates with the outside air through the gap,
When the air inside the fireproof plate is heated by solar radiation, flame, etc. and expands, it is released to the outside through the gap, so there is no trouble such as blown off of the cap.

Further, according to the second aspect of the invention, since the lower end of the fireproof plate is not in contact with the ground (floor surface), rust due to water infiltration is unlikely to occur and durability is improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. The same parts as those in the conventional example are designated by the same reference numerals. FIG. 2 is a cross-sectional view showing a fire wall of a gas station according to the embodiment of the present invention, and FIG. 3 is A of FIG.
-A sectional drawing, FIG. 4 is a perspective view which shows the upper part of FIG.

The basic construction of the embodiment of the fire wall 1 of the gas station of the present invention will be described. A plurality of pairs of fire plates 1a, 1b facing each other inside and outside are horizontally connected along the boundary of the compartment. It stands upright. Further, a water intrusion prevention cap 1c extending in the horizontal direction is fitted on the upper open ends of the plurality of pairs of fire protection plates 1a and 1b. In addition, in a part in the horizontal direction between the lower end of the cap 1c and the outer surfaces of the plurality of pairs of fireproof plates 1a and 1b, a gap that allows the space sandwiched between the fireproof plates 1a and 1b to communicate with the outside air. S1 is formed.

Further, a gap S2 is formed between the lower end of the cap 1c and the upper open end of the fireproof plates 1a, 1b, and the gap S2 is sandwiched between a plurality of pairs of fireproof plates 1a, 1b. The air in the open space is configured to communicate with the outside air. In addition, the plurality of pairs of fire protection plates 1a and 1b are shown in FIG.
As shown in (1), it is preferable to stand on the concrete base 2 that is set up along the section for rust prevention.

The fireproof plates 1a and 1b may be flat plates made of steel, but as shown in FIG. 3, a steel plate having a trapezoidal cross section and a corrugated plate made of a steel plate are preferable in terms of price and strength. The water intrusion prevention cap 1c includes the fire protection plates 1a, 1
The cross section is elliptical arc (C
In addition, the lower part is opened to a width approximately equal to the distance between the outer surfaces of the fire protection plates 1a, 1b, and is elastic like springs so as to be in close contact with the outer surfaces of the fire protection plates 1a, 1b when fitted. Is given.

As a result, the lower end of the cap 1c and the fireproof plates 1a and 1b having the ridges and ridges are formed so that the space sandwiched between the fireproof plates 1a and 1b communicates with the outside air when the cap 1c is fitted on the outside. A gap S1 is formed between the outer surface of the fire prevention plate 1a and the outer surface of the fire prevention plate 1b, and a gap S2 is formed between the upper open end of the fire protection plates 1a and 1b. A cap holder H that supports the cap 1c from below is provided on the outer surfaces of the fireproof plates 1a and 1b.

In the construction, first, the ground is dug shallowly, and a split stone 51 is laid on the bottom of the formed recess. Furthermore, a concrete foundation 52 having a thickness of about 150 mm is provided on the split stone 51, and a concrete floor 53 is provided on the ground.
Is stretched. Next, the base 2 made of concrete is erected on the floor 53 along the boundary. Further, a column 1e made of shaped steel is erected on the base 2 at appropriate intervals in the horizontal direction, and a plurality of horizontal beams 1f made of shaped steel are laid vertically and horizontally on the column 1e. As a result, the support frame 1d is formed. After that, as described above, a plurality of pairs of fireproof plates 1a and 1b are stretched on the support frame 1d in a horizontally connected state via bolts B, and the plurality of pairs of fireproof plates 1a and 1b are stretched.
A water intrusion prevention cap 1c is fitted on the upper open ends of a and 1b.

The operation will be described. Since the air in the space sandwiched by the plurality of pairs of fire protection plates 1a and 1b communicates with the outside air through the gaps S1 and S2, the fire protection plates 1a and 1b are connected.
When the air in b is heated by solar radiation, flame, etc. and expands, it is released to the outside through the gaps S1 and S2, so that there is no trouble such as blown off of the cap 1c. Moreover, since the lower end of the fireproof plates 1a and 1b provided on the base 2 is not in contact with the ground (floor surface), rust due to contact with water is unlikely to occur and is excellent in durability. .

According to this embodiment, the cross section of the water intrusion prevention cap 1c has an elliptic arc shape (a U-shape) and the gap S1,
Although S2 is formed, the cross-sectional shape is not particularly limited to this, and may have a U-shaped cross section as shown in FIG. 5, for example. According to this, it is not necessary to make the cap 1c particularly spring-like elasticity. In addition, as shown in FIG.
The U-shaped cap 1c may be externally fitted deeply without providing the cap holding portion H on the outer surface of 1b. In this case, it is necessary to form the communication holes P and Q in the fireproof plates 1a and 1b and the cap 1c instead of the gaps.

[0019]

As described above, according to the invention described in claim 1, since most of the members can be mass-produced in a factory, they are inexpensive. In addition, the assembly work is easy and the construction period is short. Moreover, since the space between the fireproof plates is hollow, it is lighter in weight and lighter in weight than the concrete block made of the conventional example, so that the foundation becomes smaller and the cost is reduced as a whole.

According to the invention described in claim 2, according to claim 1,
In addition to the function and effect of the invention, the cost is slightly increased,
Since the lower end of the fire prevention plate is not in contact with the ground (floor surface), rust due to contact with water such as flooding does not easily occur, and it has excellent durability.

[Brief description of drawings]

FIG. 1 is a partially broken perspective view showing a gas station.

FIG. 2 is a cross-sectional view showing a fire wall of a gas station according to the embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing an upper portion of FIG.

FIG. 5 is a cross-sectional view showing an upper portion of a fire barrier at a gas station according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view showing an upper portion of a fire barrier at a gas filling station according to another embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional example.

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

[Explanation of symbols]

 1 Fire wall 1a Fire plate 1b Fire plate 1c Cap 1d Support frame 1e Pillar 1f Horizontal beam 2 Base 10 Underground tank 20 Refueling device 30 Building 40 Fire fence 41 Concrete block 42 Reinforced concrete pillar 51 Split chest stone 53 B Concrete foundation H Cap holding part S1 Gap S2 Gap P Communication hole Q Communication hole

Claims (2)

[Claims] 1. A plurality of pairs of fire plates, which face each other inside and outside, are erected in a horizontally connected state along a boundary of a section, and the plurality of pairs of fire plates are horizontally arranged at an upper opening end thereof. A long water-intrusion prevention cap was fitted on the outside, and a gap was formed between the lower end of the cap and the outer surface of the fireproof plates to allow the space between the fireproof plates and the outside air to communicate with each other. A fire fence for a gas station, which is characterized by that. 2. A plurality of pairs of fireproof plates, which are inwardly and outwardly opposed to each other, are horizontally connected to each other on a concrete foundation that is erected along the boundaries of the compartments, and the plurality of pairs of fireproof plates are provided. A water intrusion prevention cap that extends long in the horizontal direction is externally fitted to the upper open end of the, and the space between the lower end of the cap and the outer surfaces of the plurality of pairs of fire protection plates and the outside air are A fire fence for a gas station, which is characterized by forming a gap that allows communication between the two.