JP2852594B2 - Fire extinguishing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing water spray head used for a sprinkler fire extinguishing system or the like. 2. Description of the Related Art When a fire occurs in a building or the like in which a sprinkler fire extinguishing system is not installed, a great deal of damage is caused due to a delay in initial fire extinguishing. Therefore, a fixed type sprinkler fire extinguishing system is provided. However, the fixed type sprinkler extinguishing system can extinguish a fire at the beginning of a fire, and the effect is extremely large. However, on the other hand, installation of the equipment requires a large amount of money, and thus the buildings to be installed are limited. For this reason, a sprinkler fire extinguishing system which replaces the fixed sprinkler extinguishing system is desired. So, conventionally,
A so-called package-type sprinkler fire extinguishing system in which a fire detecting function, fire extinguishing water, and a fire extinguishing water discharging function are integrated is used. [0003] By the way, if such a package-type fire extinguishing system is to be installed in a room, the location of the installation becomes a problem. For example, installation in the center of a room interferes with installation of furniture and the like and traffic, and therefore it is desirable to install it on the wall surface of the room. In particular, there is often a surprising space in the corners (corner portions) of the room, and when placed in the corners, there is a merit that most of the wall surface can be used for other purposes. However, in the conventional fire extinguishing equipment, if it is installed in a corner of a room (referred to as square installation), fire extinguishing cannot be performed effectively. This is because conventional fire extinguishing water spray heads such as sprinklers have a substantially circular water spray pattern, and since the water spray range is narrow, even if fire extinguishing water is released, it is not evenly sprayed in the room. . [0004] According to a survey, when a fire occurs in a room at home, it is found that objects such as curtains and bran near the wall rather than the center of the room exacerbate the fire. Therefore, in the case of using domestic tap water having a smaller amount of water and a lower water pressure as compared with a dedicated fire hydrant, effective fire extinguishing cannot be performed unless a large amount of water is sprayed near the wall. However, in the conventional example, water was not sufficiently sprinkled on the wall, so that effective fire extinguishing could not be performed. [0005] In view of the above circumstances, it is an object of the present invention to effectively extinguish a fire even if it is arranged at a corner of a room or the like. According to the present invention, there is provided a side wall that stands on a floor and surrounds a rectangular room, and is disposed near the side wall of the room.
And a fire extinguisher head fixed to the water conduit. The fire extinguisher head comprises:
A plurality of water discharge holes that face the upper part of each side wall surface and spray water for fire extinguishing on the entire upper part of all the side wall surfaces of the room, and the plurality of water discharge holes are arranged in a left and right column. , And a plurality of side wall water discharge holes arranged in a horizontal row, and the entire side wall surface of the room has a path of the fire extinguishing water sprayed thereon. And the guide is guided to the floor surface while being transmitted along the side wall surface. [0007] A water pipe with a valve is connected to a container containing fire-extinguishing water and an inert gas, and a fire-extinguishing water spray head is provided at the tip thereof, for example, the head is positioned at a corner of a room. When a fire occurs, the valve opens and the fire extinguishing water in the container is pumped to the water pipe and sprayed into the room from each water discharge hole of the watering head. In this case, a plurality of horizontal holes which are arranged in horizontal rows, by sprinkling the fire extinguishing water toward the upper wall of the plurality of sides of rectangular room facing the watering position of the head, left and right column-like arrangement A plurality of left and right tandem holes are provided in the rectangular shape.
Spray fire extinguishing water toward the upper part of the wall on the left and right sides in contact with the watering head in the room . An embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals have the same names and functions. As shown in FIG. 10, a housing 1 includes a container 2 containing fire extinguishing water and an inert gas for pressurization, a control unit 4 for receiving a fire signal output from a fire detector 3, and a control unit A valve unit 7 that opens the valve according to the control signal of 4 and supplies pressurized fire-extinguishing water in the container 2 to the water pipe 6 is accommodated. The housing 1 is formed in a substantially pentagonal shape by chamfering a corner of a square pillar so as to be suitable for installation in a corner of a room, and this shape has a back surface 1a similar to the corner 8 of the room. It only has to be in shape. In addition, the shape of the housing 1 is formed in an arbitrary shape such as a quadrangular columnar shape or a semi-cylindrical shape according to the installation location. On the upper surface 1A of the housing 1, a water pipe 6 in an inverted L-shape protrudes.
The fire detector 3 and the water sprinkling head 11 are provided, thereby facilitating fire detection and sprinkling and extinguishing. The lower end of the water pipe 6 is connected to the container 2 via a valve section 7 having an electromagnetic valve. As shown in FIG. 1 and FIG.
The main body 11a is cylindrical with a bottom and is composed of a cylindrical portion 13 having a plurality of water discharge holes 12 and a spherical portion 14. The spherical portion 14 is formed in a hemispherical or semi-elliptical spherical shape. ing. FIGS. 1 and 2 show an example of a watering head having a watering area close to a quadrangle having an installation position as one apex angle.
The plurality of water discharge holes 12 of the watering head 11 are provided with wall surface water discharge holes 12a to 12d for watering the wall surfaces A to D of the room R.
And a floor water discharge hole 12e for spraying water to the center of the floor 9 of the room R. The wall water discharge holes are composed of horizontal holes 12b and 12c and left and right tandem holes 12a and 12d. These horizontal holes 12b and 12c are a plurality of water discharge holes provided horizontally at an angle of about 90 ° to 120 ° for discharging water toward the upper direction of the two wall surfaces B and C facing the watering head 11, and And the right column holes 12a, 12d discharge water along the upper parts of the two wall surfaces A, D in contact with the watering head 11 and, along the spherical surface portion 14 of the water discharge nozzle, are arranged below both sides of the horizontal holes 12b, 12c. A plurality of water discharge holes provided. The floor water discharge holes 12e are a plurality of central holes 12e provided on the surface surrounded by the horizontal holes 12b and 12c and the left and right tandem holes 12a and 12d. Water outlet 12
a~12 less than d, and its pore size is smaller in diameter than the water discharge hole 12A～12 d for the walls. The horizontal holes 12b and 12c are arranged in a convex shape toward the farthest point on the diagonal line S with the water discharge hole 12p as the highest position, and the center line h of each horizontal hole 12b and 12c is aligned with the main body 11a. It extends radially from the central axis C. Each center line f of the horizontal holes 12b, 12c, the left and right column holes 12a, 12d, and the center hole 12e intersects with the center axis C,
The center lines f of the left and right tandem holes 12a and 12d and the center hole 12e are radially spread around the same point P of the central axis C, and the left tandem hole 12a and the right tandem hole 12d The watering area is arranged so as to approach the diagonal S as the watering area approaches the mounting position of the watering head. The wall water discharge hole 12 has a hole diameter such that, for example, water is sufficiently sprayed on each of the wall surfaces A, B, C, and D of the square room R as shown in FIG. The size and angle (latitude and longitude) of the water discharge holes 12a to 12d are appropriately determined as shown in FIG. 1 so that the water spray on each of the wall surfaces A to D is larger than the water spray on the floor surface 9 as shown in FIG. Is formed to be larger in diameter than the floor water discharge hole 12e. Next, the operation of this embodiment will be described. The housing 1 is pressed against one corner 8 of a quadrangular room R in the direction of the corner 8 so that the back surface 1a and the wall surfaces A and D come into close contact with each other. By doing so, the housing 1 fits correctly while being fitted into the corners. Next, the bite joint 17 is adjusted,
The watering head 11 is located near the ceiling surface 10. At this time, the wall water discharge holes 12a to 12d are
D, and the floor water outlet 12 e faces the center of the floor 9. When the fire detector 3 detects a fire, a fire signal is sent to the control unit 4 via a signal line (not shown) provided in the water pipe 6, and the control unit 4 operates. By the operation of the control unit 4, the electromagnetic valve of the valve unit 7 is opened, and the pressurized fire extinguishing water in the container 2 is sent to the water pipe 6 by pressure and discharged from the water discharge holes 12a to 12e of the watering head 11. The watering pattern at this time is, as shown in FIG.
That is, it has a substantially square shape. More specifically, the four walls A, B, C, D
, The watering area beyond the room R, that is, the watering areas RA, RB, A, B, C, and D planes
Fire extinguishing water is sprinkled up to RC and RD, and fire extinguishing water to be sprinkled beyond this room R is applied to all wall surfaces A to D.
Is sprinkled on the upper part of the room R, and a sprinkling area RF is also formed in the center of the room R. In addition, fire extinguishing water that is sprayed and scattered by the action of the negative pressure generated by the release into each of the areas is sprayed to portions other than the spray areas RA to RD. The reason why the watering pattern is shown in FIG. 3 is that the place where the combustible material is easily placed in the room is the wall A
This is due to the fact that -D and the central part of the room are many, but with such a watering pattern, the wall surfaces A to D and wall surface A
Because it is watered to the part near ~ D and the center of the room R,
There is an effect of easily extinguishing the fire source and preventing the wall surfaces A to D from burning. The number of the horizontal holes 12b, 12c, the number of the left and right column holes 12a, 12d is larger than the number of the center hole 12e, and the water discharge holes 12a to 12d for the wall are the water discharge holes 12a.
Since the diameter is larger than e, the amount of water discharged from the wall surface water discharge holes 12a to 12d is larger than that from the floor surface water discharge holes 12e, so that a large amount of water is sprayed on the flammable wall surface side. Therefore, fire can be effectively extinguished even when tap water is used. Furthermore, since the water discharge holes 12a to 12d for the wall face the upper part of the wall A to D, the fire extinguishing water is sprayed on the upper part of the wall. For this reason, the fire extinguishing water flows down the walls A to D and flows down onto the floor, so that the fire extinguishing water naturally extinguishes the fire on the floor. The watering head 11 of this embodiment has a maximum diameter of the central hole 12p of the horizontal holes 12b and 12c provided over an angle of about 90 °, and is used for a room close to a square. In this case, of the horizontal holes 12b and 12c, the hole facing the diagonal line of the room may be the maximum diameter. This is because the greater the diameter of the water discharge hole, the more water can be sprayed far away. Next, a second embodiment will be described with reference to FIGS. 4, 5 and 6. The difference from the first embodiment is that a plurality of water discharge holes, that is, horizontal holes 12b are arranged in a horizontal row. , 12c
Are located on the same latitude and are arranged in a plurality of rows, and a plurality of water discharge holes 1 are arranged in a left column.
2a, that is, a left column hole and a plurality of water discharge holes 12d arranged in a right column shape, that is, a right column hole are arranged in a plurality of columns, respectively. When the water discharge holes are formed as described above, the water discharge pattern is substantially the same as that of the first embodiment.
Since each of the water spray areas RA to RD of a can be widened, the wall surfaces of A to D can receive more water spray. Since the number of the horizontal holes 12b and 12c and the number of the left and right vertical holes 12a and 12d are larger than the number of the center holes 12e, a much larger amount of fire extinguishing water is sprayed on the wall surfaces A to D than on the floor surface. In addition,
The hole diameter and angle (latitude β) of the water discharge hole are appropriately selected as necessary, but the larger the hole diameter and the smaller the angle β,
Fire fighting water scatters far away. [0017] Third Example 7 was to be placed near the center of one side of the sprinkling area of square shape, FIG. 8, but shown in FIG. 9 differs from the first embodiment, the horizontal rows A plurality of horizontal holes 12b and 12c are arranged on the same latitude, and a plurality of water discharge holes are
b, 12c, left and right vertical holes 12a, 12d, a central vertical hole 12f arranged in a vertical line at the center thereof, and a central vertical hole 12f.
And left and right tandem holes 12a and 12d. A package provided with the fire-extinguishing watering head 11
As shown in FIG. 9, when the sprinkler fire extinguishing system is disposed at the center of the wall A of the rectangular room R, the water is discharged, and the horizontal hole sprinkling area RC formed by the horizontal holes 12b and 12c and the center formed by the central vertical hole 12f. A main watering pattern in the shape of a chevron consisting of a vertical watering area RE and a left vertical watering area RD formed by a left vertical hole 12d and a right vertical watering area RB formed by a right vertical hole 12a. The main watering pattern is obtained. That is, such horizontal holes 12b, 12c, left and right column holes 1
A so-called sun-shaped main watering pattern in which two mouths are overlapped by 2a, 12d and the central vertical hole 12f is obtained. In the character-shaped main watering pattern of this day, there is a blank in the two mouth-shaped portions, but the left and right holes 12h,
12j forms left and right borehole sprinkling areas RF and RG,
A main watering pattern is formed at the center of the blank area of the mouth-shaped portion. As described above, each of the water discharge holes 12a to 12f, 1
By 2h and 12j, a main watering pattern as shown in FIG. 9 is obtained. In the part deviating from the main watering pattern, each of the water discharge holes 12a to 12f, 12h, toward each of the watering areas RB to RG,
Fire extinguishing water discharged from 12j scatters, or
Water is sprinkled by the action of the negative pressure generated by the water discharge flow, and further sprinkled by flowing down the wall surface. Accordingly, since the resulting water spray pattern of substantially square to the mounting position of the sprinkler head 11 and its side, it is in the room R is watering without fully Amane performed. The watering head 11 is shown in FIG.
Each of the sprinkling areas RA to RG indicated by the dotted line has a part of the outer part thereof shown beyond the wall surface W indicated by the solid line. Since all the water to be sprayed is sprayed on the walls A to D, the walls A to D
Is sprayed with sufficient water to prevent the spread of fires trying to spread on the wall. According to the present invention, as described above, at the time of water discharge, the water discharge section, that is, the horizontal hole, has a plurality of square sides, ie, two sides, facing the installation position of the head, or The fire extinguishing water is sprayed toward the upper part of the wall of the three sides, and the left and right tandem holes spray the fire extinguishing water toward the upper part of the wall of the other side of the square. Therefore, the fire extinguishing water is surely sprayed over each wall surface of the room, so that effective fire extinguishing can be performed unlike the conventional example. In particular, the present invention is extremely effective in extinguishing fire with domestic tap water having a lower water pressure and a smaller amount of water than a dedicated fire hydrant. Further, when used as a sprinkler head of a package-type sprinkler fire extinguishing system, the package-type sprinkler extinguishing system can be installed at each corner of the room, so that the room can be effectively used without disturbing the use of the room. Furthermore, in the case of a normal sprinkler fire extinguishing system, a water sprinkling head for fire extinguishing as a sprinkler head can be installed near a wall surface of a room or at each corner, so that piping over the entire ceiling is not required. In the case of a building inside, piping can be performed simply by peeling off a ceiling plate close to a wall surface, or piping can be performed at an upper end portion of the wall surface, which greatly simplifies the construction. In addition, in the case of a large room, if two to four heads are combined and installed in the center of the room, for example, water can be sprayed over a wide range, so that piping can be greatly reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view. FIG. 3 is a diagram showing a watering pattern. FIG. 4 is a partial sectional front view showing a second embodiment. FIG. 5 is a partial cross-sectional plan view. FIG. 6 is a developed view of polar coordinates when viewed from the bottom surface when the spherical surface bottom surface is set to 90 ° latitude. FIG. 7 is a front view showing a third embodiment. FIG. 8 is a schematic front view showing an arrangement of water discharge holes. FIG. 9 is a diagram showing a watering pattern. FIG. 10 is a perspective view showing a state where a watering head is attached. [Description of Signs] 11 Fire-extinguishing water sprinkling head 11a Main body 12 Water discharge hole 12a Left tandem hole 12b Horizontal hole 12c Horizontal hole 12d Right tandem hole

Continuation of the front page (72) Inventor Hirotake Yoshiba 4-7-3 Kudanminami, Chiyoda-ku, Tokyo Nomi Disaster Prevention Industry Co., Ltd. (56) References JP-A-60-241461 (JP, A) JP-A Sho54 -27298 (JP, A) Fully open 1987-189760 (JP, U) Fully open 60-97150 (JP, U) Fully open 49-135297 (JP, U) Fully open 1979-53452 (JP, U (58) Fields surveyed (Int. Cl. ⁶ , DB name) A62C 31/24 B05B 1/02 B05B 1/14

Claims (1)

(57) [Claims] It is fixed to a side wall that is erected on the floor and surrounds a rectangular room, and a water pipe arranged near the side wall of the room.
A fire extinguishing water spray head, the fire extinguishing water spray head being directed to the top of each side wall of the room.
Includes a come plurality of water discharge holes which spraying extinguishing water to all of the total sidewall surface above the room, the water discharge hole of said plurality of the left and right column shape disposed a plurality of side wall surfaces for water discharge hole And a plurality of water discharge holes for side wall surfaces arranged in a horizontal row. The entire side wall surface of the room changes the course of the fire extinguishing water sprinkled on the upper part thereof, and the side wall surface Fire extinguishing equipment, which guides the user to the floor while transmitting information. 2. The fire extinguishing system according to claim 1, wherein the side wall surface water discharge holes are arranged in a plurality of rows.