JP3127404B2 - Fire extinguisher - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fire extinguisher.

(Prior art)

As a fire extinguisher, a sprinkler fire extinguishing system, a water spray extinguishing system, a foam extinguishing system, and the like are conventionally known, and are widely used in buildings, factories, parking lots, and the like according to their installation locations and applications.

[Problems to be solved by the invention]

By the way, sprinkler fire extinguishing equipment, water spray fire extinguishing equipment and foam fire extinguishing equipment are those that discharge and spray a fire extinguishing liquid such as water or foam evenly in a certain range, and are easy to cause a fire like a paint booth in an automobile factory, for example. In a place where the location is limited, fire extinguishing fluid cannot be collected at that location, and there is a problem that it takes time to completely extinguish the fire.

In addition, fire extinguishing liquid such as water or foam discharged from a sprinkler head, a spray head, a foam head, or the like has a slow speed, the water particles are fine, or the diameter of the foam is large and the density is small. Since it is relatively short, it is necessary to provide a large number of heads, and in the case of a painting booth, it has been difficult to spray the fire extinguishing liquid into the body of the car.

[Means for solving the problem]

In view of the above, an object of the present invention is to provide a fire extinguisher that can extinguish a fire quickly and reliably with a small number of fire extinguishing agent discharge heads and a simple configuration. And one or more fan-shaped discharge heads, which are divided into a protective fire-extinguishing area surrounding or sandwiching the main fire-extinguishing area and arranged to discharge the fire-extinguishing liquid toward the main fire-extinguishing area, and discharge the fire-extinguishing liquid into the protective fire-extinguishing area. And a spray head arranged so as to perform the spraying.

[Action]

The fire extinguishing compartment is divided into a main fire extinguishing area and a protective fire extinguishing area surrounding or sandwiching the main fire extinguishing area, and a fire extinguishing liquid such as water and foam is discharged by a fan-shaped discharge head into the main fire extinguishing area and a spray head into the protective fire extinguishing area. In the main fire extinguishing area, the fire can be extinguished quickly and reliably by the synergistic effect of the cooling action and the covering action by the fan-shaped discharge pattern of the fire extinguishing liquid, and the blowing out action by the entrapped air. Spraying of the fire extinguishing liquid can prevent the spread of a fire without disturbing the emission pattern of the main fire extinguishing area, and can extinguish a fire that occurs in that area.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view when the present invention is provided in a painting booth of an automobile factory, FIG. 2 is a sectional view thereof, 10 is a painting booth, 11 is an automobile body, 12 is a conveyor such as a belt conveyor, Reference numeral 13 denotes a first coating machine for coating the front, top, and rear surfaces of the body 11, reference numeral 14 denotes a coating nozzle thereof, reference numeral 15 denotes a second coating machine for coating the side surface of the body 11, and reference numeral 16 denotes a coating nozzle thereof. This first coater 13 moves back and forth during painting and its nozzle
14 moves left and right and up and down, and the nozzle 16 of the second coating machine 15 moves up and down to paint the body 11.

In this embodiment, the locations of the first and second coating machines 13 and 15 in the coating booth 10 are fire extinguishing sections, and the nozzles 14 and 16 where fire is likely to occur due to static electricity or the like generated during coating.
The main fire extinguishing area is defined as a moving range of the surrounding area and the surrounding area is defined as a protective fire extinguishing area for preventing the spread of fire.

21 and 22 are fan-shaped discharge heads respectively arranged on the side wall of the coating booth 10 toward the main fire extinguishing area of the coating nozzle 14, and 23 and 24 are on the side wall of the coating booth 10 toward the main fire extinguishing area of the coating nozzle 16. Each of the fan-shaped ejection heads is arranged. These fan-shaped discharge heads 21 to 24 have a flat and fan-shaped discharge pattern 25 for a fire extinguishing liquid such as water or an aqueous foam solution, and examples of the heads are shown in FIG. 3 and FIG.
In these heads, reference numeral 26 denotes a discharge port for discharging the fire extinguishing liquid in a flat fan shape.

Numerals 31 to 34 denote spray heads arranged at the four corners of the protective fire-extinguishing area in a quadrangular (rectangular) space surrounding the main fire-extinguishing area centering on the coating nozzles 14 and 16. This spray head 31-34
Has a substantially cone-shaped emission pattern 35. In addition, as the spray heads 31 to 34, there are a type having a spiral in the discharge port, a type having a deflector in front of the discharge port, and the like.

 Next, the operation of this device will be described.

When a fire occurs in the painting booth 10, for example, near the painting nozzle 14 of the first painting machine 13 which is one of the main fire extinguishing areas,
When the district valve 41 is opened by a signal from a fire detector (not shown) that detects the fire or a manual operation signal,
Water or a fire-extinguishing liquid such as, for example, an aqueous film-forming foam solution is supplied from a fire-extinguishing liquid source (not shown) via the pipe 42 to the fan-shaped discharge heads 21 to 24
Is supplied to the spray heads 31 to 34 under pressure.

Thus, the fire extinguishing liquid is applied in a fan-shaped pattern 25 from the fan-shaped discharge heads 21 and 22 in the main fire-extinguishing area around the painting nozzle 14 and from the fan-shaped ejection heads 23 and 24 in the main fire-extinguishing area around the painting nozzle 16. Released. Further, the fire extinguishing liquid is discharged from the spray heads 31 to 34 in a substantially cone-shaped spray pattern 35 to the protective fire extinguishing area surrounding the main fire extinguishing area.

As described above, the fan-shaped discharge head 21
As a result, the fire extinguishing liquid is emitted in a fan-shaped emission pattern 25 having a large radiation velocity energy. For this reason, the fire extinguishing liquid secures a sufficient range to each part of the main fire extinguishing area. In addition, the fire extinguishing liquid that is released engulfs the surrounding air and reaches the fire without losing velocity energy, so that the synergistic effects such as the cooling action and the covering action by the fire extinguishing liquid, and the blowing-out action by the entrapped air, etc. By the action, fire extinguishing is performed early and reliably.

In addition, in this embodiment, the fan-shaped discharge heads 21 to 24 are provided on the side of the main fire extinguishing area, and the fire extinguishing liquid is discharged from the lateral direction with respect to the main fire extinguishing area. The liquid can enter the body 11 due to its long reach and extinguish the fire.

On the other hand, to the protective fire extinguishing area surrounding the main fire extinguishing area, the fire extinguishing liquid is sprayed and discharged from the spray heads 31 to 34 so as to surround the main fire extinguishing area. This prevents a fire that has occurred in the main fire extinguishing area from spreading to the surroundings, and prevents surrounding air from affecting the fire extinguishing area. Moreover, since the fire extinguishing liquid discharged from the spray heads 31 to 34 is in the form of a spray, the fan-shaped discharge pattern 25 discharged from the fan-shaped discharge heads 21 to 24 does not disturb. Further, even if a fire occurs around the main fire extinguishing area, the fire can be surely extinguished.

In the above-described embodiment, the painting booth in the automobile factory has been described. However, the painting booth may be in another location such as a production line or a laboratory.

Further, the fan-shaped discharge head and the spray head are provided on both side walls of the fire extinguishing section, but may be provided on only one side or may be provided on the ceiling surface according to the installation location and fire extinguishing target. .

Further, when there are a plurality of main fire extinguishing regions and there is a gap between them, a fan-shaped discharge head or a spray head may be provided at that position to discharge the fire extinguishing liquid.

〔effect〕

According to the present invention, the fire extinguishing section is divided into a main fire extinguishing area and a protective fire extinguishing area. The fan-shaped discharge head extinguishes the main fire extinguishing area, and the spraying head extinguishes the surrounding protective fire extinguishing area and fires from the main fire extinguishing area. Since the spread of the fire is prevented, the fire can be quickly and reliably extinguished with a small number of heads and a simple configuration.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an installation state of one embodiment of the present invention, FIG. 2 is a side view thereof, and FIGS. 3 and 4 are views of an example of a fan-shaped ejection head. 10 Painting booth as an example of fire extinguishing section, 21-24 Fan discharge head, 31-34 Spray head.

Continuation of the front page (72) Inventor Mitsuru Yagi 4-7-3 Kudanminami, Chiyoda-ku, Tokyo Nomi Disaster Prevention Co., Ltd. (72) Inventor Jun Jun Uchiyama 4-73 Kudanminami, Chiyoda-ku, Tokyo Nomi Disaster Prevention Stock In-house examiner Masato Matsunawa (56) References JP-A-61-134500 (JP, A) JP-B-57-57149 (JP, B1) JP-B-50-11195 (JP, B1) (58) (Int.Cl. ⁷ , DB name) A62C 2/00-37/36

Claims (2)

(57) [Claims] The fire extinguishing section is divided into a main fire extinguishing area and a protective fire extinguishing area surrounding or sandwiching the main fire extinguishing area, and one or more fan-shaped discharge heads arranged to discharge a fire extinguishing liquid toward the main fire extinguishing area. And a spray head arranged to discharge a fire extinguishing liquid to the protective fire extinguishing area. 2. The fan-shaped discharge head is disposed so as to discharge the fire-extinguishing liquid laterally from the side of the main fire-extinguishing area toward the main fire-extinguishing area. The fire extinguisher according to claim 1, wherein the fire extinguisher is arranged to discharge the liquid inward.