JP2015019889A - Fire extinguishing equipment for parking lot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fire extinguishing equipment for a parking lot, capable of securing force of water not defeated in violent force of fire blowing out from an automobile similarly to water spray from a water spray head having a low installation height (a water spray head close to a fire source) even by water spray from a water spray head having a high installation height (a water spray head distant from the fire source).SOLUTION: Fire extinguishing equipment for a parking lot includes: a plurality of first water spray heads; and a plurality of second water spray heads having installation height higher than the plurality of first water spray heads. The second water spray head has a smaller open angle of a deflector than the first water spray head.

Description

  The present invention relates to a fire extinguishing facility for a parking lot.

  Conventionally, there has been proposed a sprinkler head having a structure in which water is sprayed downward so that the watering area does not expand too much in a high ceiling installation state (see Patent Document 1).

JP 2001-95944 A

  However, the conventional fire extinguishing equipment has a problem that the water flow discharged from the head mounted on the high ceiling is reduced by air resistance or the like before reaching the fire extinguishing target. For this reason, particularly in a fire in a parking lot, the water sprayed from the head loses the intense fire that spouts from the automobile, and a sufficient amount of water cannot reach the fire source inside the automobile. There was a fear.

  Therefore, the present invention provides water spray heads having a low mounting height (water spray heads close to the fire source) and water sprays even from water spray heads having a high mounting height (water spray heads away from the fire source). Similarly, it aims at providing the fire extinguishing equipment of the parking lot which can ensure the water force which is not defeated by the intense fire which spouts from a motor vehicle.

  According to the present invention, the above problem is solved by the following means. That is, a fire extinguishing facility for a parking lot comprising a plurality of first water spraying heads and a plurality of second water spraying heads having mounting heights higher than the plurality of first water spraying heads, The spray head is a fire extinguishing facility for a parking lot, wherein the opening angle of the deflector is smaller than that of the first water spray head.

It is a mimetic diagram showing a schematic structure of fire extinguishing equipment concerning an embodiment of the present invention. It is a schematic diagram which shows schematic structure of the 1st water spray head and 2nd water spray head which concern on embodiment of this invention. It is a schematic diagram which shows schematic structure of the deflector of the 1st water spray head which concerns on embodiment of this invention. It is a schematic diagram which shows schematic structure of the deflector of the 2nd water spray head which concerns on embodiment of this invention.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated, referring attached drawing.

  Drawing 1 is a mimetic diagram showing a schematic structure of fire extinguishing equipment concerning an embodiment of the present invention. As shown in FIG. 1, the fire extinguishing equipment according to the embodiment of the present invention includes a plurality of first water spray heads 21 and a plurality of second water spray heads that are higher in mounting height than the plurality of first water spray heads 21. The second water spray head 22 is a fire extinguishing facility for a parking lot having a deflector opening angle smaller than that of the first water spray head 21.

  Hereinafter, it demonstrates in order.

[Parking Lot]
The parking lot is, for example, an indoor parking lot provided in a building such as a building or an apartment where an automobile can be parked. The automobile is, for example, an ordinary automobile, a light automobile, a motorcycle or the like. Since these automobiles emit a flame of intense heat when burned, the embodiment of the present invention can be preferably applied to a parking lot where these automobiles are parked. In addition, the 1st water spray head 21 and the 2nd water spray head 22 are attached in the position which exists between a motor vehicle and a motor vehicle, for example so that water can be sprayed into a motor vehicle through the window of a motor vehicle.

  The parking area includes a first parking area 11 (eg, a mechanical parking area) in which a plurality of cars can be parked in the vertical direction and a second parking area in which one car can be parked in the vertical direction. 12 (example: self-propelled parking area). The first water spray head 21 sprinkles water in the first parking area 11, and the second water spray head 22 sprinkles water in the second parking area 12. In addition, the parking lot may have another parking area in addition to one or both of the first parking area 11 and the second parking area 12, or may have only another parking area. Good.

[First water spray head, second water spray head]
FIG. 2 is a schematic diagram showing a schematic configuration of the first water spray head and the second water spray head according to the embodiment of the present invention.

  As shown in FIG. 2, the first water spray head 21 and the second water spray head 22 include nozzles 21a and 22a, deflectors 21b and 22b, and the like. The nozzles 21 a and 22 a are connected to the pipe 23. The water supplied from the pipe 23 is discharged from the nozzles 21a and 22a, hits the deflectors 21b and 22b, and is sprinkled. As the first water spray head 21 and the second water spray head 22, for example, a closed water spray head can be used. In the closed-type water spray head, the tips of the nozzles 21a and 22a are closed during normal times. However, when a heat sensitive part (not shown) senses a certain amount of heat, the tips of the nozzles 21a and 22a are opened to spray water. Is started. FIG. 2 shows a state in which the tips of the nozzles 21a and 22a are opened.

  The mounting height of the second water spray head 22 is higher than that of the first water spray head 21. The mounting height refers to the first water spray head 21 and the first water spray head 21 from the parking surface X (for example, the floor surface in the self-propelled parking area, the bottom surface of the pallet provided in the mechanical parking area). 2 It is the height to the position where the water spray head 22 is attached (for example, the ceiling in the self-propelled parking area, the upper surface of the pallet that the mechanical parking area has). In addition, in FIG. 1, the attachment height of the 1st water spray head 21 was shown with the code | symbol h1, and the attachment height of the 2nd water spray head 22 was shown with the code | symbol h2.

  The mounting height h1 of the first water spray head 21 that sprinkles the first parking area 11 is, for example, less than 4 m, and the mounting height h2 of the second water spray head 22 that sprinkles the second parking area 12 is, for example, 4 m. It is 10 m or less.

(Deflector)
FIG. 3 is a schematic diagram showing a schematic configuration of the deflector 21b of the first water spray head 21 according to the embodiment of the present invention, and FIG. 4 shows the deflector 22b of the second water spray head 22 according to the embodiment of the present invention. It is a schematic diagram which shows schematic structure of these. 3 and 4, (a) is a bottom view, and (b) is a view showing an AA cross section in (a).

  As shown in FIGS. 3 and 4, the opening angle θ <b> 2 of the deflector 22 b of the second water spray head 22 is smaller than the opening angle θ <b> 1 of the deflector 21 b of the first water spray head 21. When the opening angle of the deflector is large, the water force is stronger than when the deflector is small. Therefore, according to the embodiment of the present invention, the second water spray head 22 (from the fire source) having a higher mounting height than the first water spray head 21 is used. Water spraying from a remote water spraying head) can secure a water force that is not defeated by the violent fire that spouts from the automobile, as is the case with watering from the first water spraying head 21 (water spraying head close to the fire source). .

  When the mounting height h1 is less than 4 m, the first water spray head 21 includes a deflector 21b having an opening angle θ1 of 130 degrees or more and 150 degrees or less, for example. When the height h2 is not less than 4 m and not more than 10 m, for example, a deflector 22b having an opening angle θ2 of not less than 110 degrees and less than 130 degrees is provided. As a result, water having a water pressure that is not defeated by the violent fire that spouts from the automobile from any of the first water spray head 21 and the second water spray head 22 that have different mounting heights can be used as a fire source located inside the automobile. Can be easily reached.

  The watering pressures of the first water spray head 21 and the second water spray head 22 are both 0.35 MPa or more, for example. As a result, water having a water pressure that is not defeated by the violent fire that spouts from the automobile from any of the first water spray head 21 and the second water spray head 22 that have different mounting heights can be used as a fire source located inside the automobile. Can be easily reached.

  The amount of water sprayed by the first water spray head 21 and the second water spray head 22 is, for example, 110 L / min. As a result, a sufficient amount of water can easily reach a fire source inside the automobile or the like from both the first water spray head 21 and the second water spray head 22 having different mounting heights.

  From the first water spray head 21 and the second water spray head 22, for example, large water particles (for example, water particles having a diameter of 0.5 mm to 2 mm) and small water particles (for example, diameter of 0.2 mm to 0 mm). Water particles less than 0.5 mm). Whether or not large water particles and small water particles are contained can be confirmed by, for example, obtaining water spray from the first water spray head 21 or the second water spray head 22 in a petri dish.

  Large water particles are formed when water discharged from the nozzle slides and falls along the deflector, and small water particles drop when water discharged from the nozzle passes through the notch Y or the long hole Z of the deflector. It is formed by doing. Large water particles reach a fire source, such as inside an automobile, with a strong water force, and are used to reduce and extinguish the heat. On the other hand, the small water particles lose their water force and become mist-like, and the heat rising airflow generated above the automobile is steamed to take the heat of the fire site and lower the temperature.

  The water spray from each head may contain large water particles and small water particles at the same ratio or different ratios. However, it is preferable that the water spray from the second water spray head 22 contains a lot of larger water particles than the water spray from the first water spray head 21. If it does in this way, the water spray from the 2nd water spray head 22 (water spray head away from a fire source) has a stronger water force than the water spray from the 1st water spray head 21 (water spray head near a fire source). Therefore, even by watering from the second water spraying head 22 (water spraying head away from the fire source), as with watering from the first water spraying head 21 (water spraying head close to the fire source), It is possible to secure a water force that is not defeated by the intense fire that spouts from the automobile. In addition, as an example of the form in which many water particles larger than the water spray from the 1st water spray head 21 are contained in the water spray from the 2nd water spray head 22, 50% from the 1st water spray head 21: An example is given in which large water particles and small water particles are discharged at a rate of 50%, respectively, and large water particles and small water particles are discharged from the second water spray head 22 at a rate of 80%: 20%, respectively. Can do.

  The deflector 21b of the first water spray head 21 has a notch Y (an example of a slit that scatters water hitting the deflector in the left-right direction of the deflector), and the deflector 22b of the second water spray head 22 has a long hole Z. (An example of a slit that allows water hitting the deflector to drop in the downward direction of the deflector). As a result, it is possible to ensure a sufficient watering radius to cover the violent fire that spouts from the automobile, regardless of whether the first water spraying head 21 or the second water spraying head 22 with different mounting heights is sprinkled. it can. However, in the embodiment of the present invention, the two first water spray heads 21 or the two second water spray heads 22 cover the fire power ejected from one automobile, so that one first water spray head 21 or The water spray radius of one second water spray head 22 is a size that covers about half of one automobile.

  In addition, in addition to the 1st water spray head 21 and the 2nd water spray head 22, the fire extinguishing equipment of the parking lot which concerns on embodiment of this invention is equipped with the other water spray head from which these differ in attachment height. Can do. In this case, for example, if the mounting height of the other water spray heads is higher (lower) than the first water spray head 21 or the second water spray head 22, the first water spray head 21 or the second water spray head 22 is used. The opening angle of the deflector can be made smaller (large).

  As described above, according to the fire extinguishing equipment according to the embodiment of the present invention, the opening angle θ2 of the deflectors 22b of the plurality of second water spray heads 22 whose mounting height is higher than that of the first water spray head 21 is the first water spray. Since the opening angle θ1 of the deflector 21b of the head 21 is smaller than the opening angle θ1, the first water spray head 21 (close to the fire source) is also sprinkled by water from the second water spray head 22 (water spray head away from the fire source). Similar to the water spray from the water spray head), it is possible to secure a water force that is not defeated by the intense fire that spouts from the automobile. Therefore, according to the fire extinguishing equipment according to the embodiment of the present invention, in a fire in a parking lot, a sufficient amount of water is made to reach a fire source in the interior of the automobile or the like with a water force that is not defeated by the intense fire that spouts from the automobile. be able to.

  As mentioned above, although embodiment of this invention was described, these description is related with an example of this invention, and this invention is not limited at all by these description.

11 1st parking area 12 2nd parking area 21 1st water spray head 22 2nd water spray head 21a Nozzle 22a Nozzle 21b Deflector 22b Deflector 23 Piping X Parking surface Y Notch Z Long hole θ1 Open angle θ2 Open angle h1 Installation height H2 Installation height

Claims (7)

  A fire extinguishing facility for a parking lot comprising a plurality of first water spray heads and a plurality of second water spray heads having mounting heights higher than the plurality of first water spray heads, wherein the second water spray heads Is a fire extinguishing facility for a parking lot, wherein the opening angle of the deflector is smaller than that of the first water spray head. The first water spray head has a mounting height of less than 4 m and an opening angle of the deflector of 130 degrees or more and 150 degrees or less,
The second water spray head has a mounting height of 4 m or more and 10 m or less, and an opening angle of the deflector of 110 degrees or more and less than 130 degrees.
The fire extinguishing equipment for a parking lot according to claim 1.   The fire extinguishing equipment for a parking lot according to claim 1 or 2, wherein watering pressures of the first water spray head and the second water spray head are both 0.35 MPa or more.   The fire extinguishing equipment for a parking lot according to any one of claims 1 to 3, wherein the amount of water sprayed by the first water spray head and the second water spray head is 110 L / min. From the first water spray head, large water particles and small water particles are respectively discharged at a ratio of 50%: 50%,
From the second water spray head, large water particles and small water particles are respectively discharged at a ratio of 80%: 20%.
The fire extinguishing equipment for a parking lot according to any one of claims 1 to 4, characterized in that: The deflector of the first water spray head has a notch,
The deflector of the second water spray head has a slot.
The fire extinguishing equipment for a parking lot according to any one of claims 1 to 5, wherein The parking lot is
A first parking area in which a plurality of cars can be parked in the vertical direction;
A second parking area in which one car can be parked in the vertical direction;
Have
The first water spray head sprays water into the first parking area;
The second water spray head sprays water into the second parking area;
The fire extinguishing equipment for a parking lot according to any one of claims 1 to 6.

Images