JP2007319513A - Fire-fighting equipment consisting of alternately disposed closed type sprinkler head - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow adjoining closed-type sprinkler heads to release agents from different extinguishant storage containers and establish a fire extinguishing performance for a case where a fire spreads to adjoining protected zone. <P>SOLUTION: An automatic fire-fighting equipment is characterized in that each protected zone included in a spray range of a single closed type release head 10 is uniformly disposed in a floor to be protected; a single closed-type release head is installed at the central part of each protected zone respectively; two or more extinguishant storage containers 1 are provided with single closed type release heads for every protected zone respectively connected to each tube communicatedly extended for each extinguishant storage container; each protected zone of each closed-type release head connected to the same extinguishant storage container is disposed in non-adjoining state mutually, and all the protected zones are disposed in an alternate manner for every different extinguishant storage container. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an arrangement of a sprinkler head, a fire extinguishing agent storage container, and a pipe relating to a fire extinguishing equipment using a closed sprinkler head and a fire extinguishing agent.

In a fire extinguishing facility that uses a fire extinguishing agent, the amount of the extinguishing agent that is stored is limited in terms of compactness and cost, and it is important that the limited amount of the extinguishing agent be effectively applied to the fire position without waste. Various fire extinguishing equipment selected according to the intended use of the fire prevention object uses a head that is always open, although the structure varies depending on the characteristics of the fire extinguishing agent. The fire extinguishing agent storage container is provided, and fire extinguishing is performed by simultaneously discharging the plurality of heads from the plurality of heads to the entire area.

(A) For example, as shown in Fig. 3, the powder fire extinguishing equipment installed mainly in facilities related to dangerous goods has a certain area with the ceiling beam as a boundary as a protection area, and each protection area is always open. Are combined so that adjacent protective compartments are piped to two different containers. When a fire breaks out, the equipment body (powder storage container) is actuated by a start signal, etc., by the activation of a fire sensor provided for each compartment, and one fire extinguishing agent is simultaneously delivered to the fire compartment from multiple jet heads. It is a facility that radiates to the fire and extinguishes fires due to the suffocation effect.
Therefore, when a fire spreads to an adjacent section, the arrangement is such that the remaining one container operates to extinguish the fire.

(B) Also, in package-type automatic fire extinguishing equipment installed in general buildings, install two or more fire extinguishing chemical storage containers suitable for the protected area whose performance is certified as shown in Fig. 4, and protect adjacently. When there is a possibility that the compartments may spread to each other, a plurality of branch pipes are arranged through a selection valve for each protective zone in pipes communicating with different containers, and a plurality of normally open discharge ports provided at the tips of the branch pipes. Is provided. In the event of a fire, the fire extinguishing agent will be extinguished by simultaneously releasing the extinguishing agent from multiple outlets to the entire protected area by opening the control valve of the extinguishing agent storage container by the operation signal of the fire detector installed in the center of the protective compartment. Yes, if a fire spreads to an adjacent area, it can be protected by operating another unused container in the same way.

The fire extinguishing equipments (a) and (b) are fire extinguishing equipments that simultaneously release a fire extinguishing agent into a protective area having a fixed area formed by a plurality of normally open jet heads.

(C) For fire extinguishing equipment that uses an open-type jet head, FIG. 5 shows that the entire object to be protected is opened on a single pipe extended from one fire extinguishing agent storage container by heat of fire, There is a conventional fire extinguishing system in which a plurality of closed heads (hereinafter referred to as closed sprinkler heads) having a water spray range of the opened head as a protection range are provided.

Japanese Patent No. 2689050 Patent No. 3627942 No. 7-79849 Utility model registration No. 2547483

  The object of the present invention is to improve the drawbacks of the conventional fire extinguishing equipment provided with the closed sprinkler head (c).

In the case of the conventional fire extinguishing equipment according to FIG. 5, there is no problem in a small section in which a protective section is included by one radiating head, but when the installation area is large, a plurality of closed heads are installed on one floor, Because it is provided in a single pipe that communicates with one medicine storage container, the adjacent heads may be opened at the same time or at a later time when the fire is in the middle of the head or when the fire spreads. is there.
In such a case, the following inconvenience to fire extinguishing performance occurs.
(1) In the case of fire extinguishing equipment with a fire extinguishing agent amount limited to the protection range of one head, when adjacent heads are opened simultaneously, the fire extinguishing agent is dispersed to the two heads, and the unit area for the protection section A drop in the water spray density occurs.
(2) After one closed head is opened due to a fire, if two heads are opened after a time lag due to the expansion of the fire, even if the fire extinguishing agent storage capacity is more than two heads, The amount of fire-extinguishing agent sprayed amount is not ensured in the head portion on the delayed operation side.

For example, in FIG. 5, when a fire occurs in the protection range of the head a, the head a usually operates first.
If fire extinguishes or suppresses fire at this stage, the ambient temperature will not drop and multiple heads will not operate, but if there is a fire in the middle of head b or head c or spread in another direction There is a case where b, c, or d is released at the same time as a and released, and the above-described problem occurs.

This equipment, like a sprinkler equipment that uses a closed head, is open once for a fire that occurs in the vicinity of a plurality of normally closed thermal heads installed in a single pipe communicating with a fire extinguishing agent storage container. The fire extinguishing agent is then released to extinguish or suppress a fire within the watering range of each head.
Sprinkler equipment equipped with a large amount of water storage tanks can continuously discharge water for a long time using a pump, but in this equipment, it is an important issue to ensure the amount of water extinguisher sprayed on the adjacent head when the fire expands. ing.

FIG. 1 is an example in which two or more fire extinguishing agent storage containers are provided, and closed heads are alternately provided in piping communicating with each container in order to solve this problem.
Depending on the object to be protected, three or more fire extinguishing agent storage containers can be installed, and the adjacent heads can be alternately arranged so that they do not become the piping of the same container, so that it is possible to secure a protection area when the fire spreads.

  FIG. 6 shows a fire extinguishing equipment comprising a main body part such as a pressurized drug storage container, a pressurized gas container, an operating device, a receiving device, etc., a fire detector, a control wiring and a thermal radiation opening closed radiation head (closed sprinkler head). It is.

  A second aspect of the present invention is a fire extinguishing equipment system in which a closed type radiation head is arranged for each different fire extinguishing agent storage container of the first aspect by combining a plurality of such fire extinguishing equipments.

Adjacent closed sprinkler heads installed as in the embodiment discharge from different fire extinguishing agent storage containers, so that fire extinguishing performance can be established against a fire spread to adjacent protected areas.
The effect of this invention is shown below.
(1) Since the protective compartments belonging to the same drug storage container are not adjacent to each other, different drug storage container lines simultaneously correspond when the fire occurrence position is in the middle of the head or when the fire spreads. A uniform and effective fire extinguishing can be achieved without reducing the spraying density.
(2) Since each protective section is evenly arranged in the floor to be protected and one head is arranged at the center of each protective section, protection of each protective section and thus the entire floor is protected. Can be implemented effectively.
(3) Since the heads and the protection sections belonging to the heads are alternately arranged for different drug containers, it is economical that a uniform and evenly divided arrangement can be implemented compactly and compactly by each protection section on the floor.

In FIG. 1, when a fire breaks out near the head B (1), the fire is extinguished by the operation of the head B (1). In this case, it is discharged from the medicine storage container B and the container A remains. If the fire spreads in the direction of the horizontal head A (2), the fire extinguishing agent in the container A releases a specified amount of fire extinguishing agent from the head A (2).
When considering expansion from the B (1) head position to the B (2) direction, it is possible to install three or four drug storage containers and combine the heads with multi-system piping.
FIG. 2 shows a configuration in which a plurality of drug storage containers can be installed in a small space and at low cost by storing them in a single storage box.

Since the subject of the present invention is the combined arrangement of the radiation head (closed sprinkler head) of the fire extinguishing equipment and the related extinguishing agent storage container and piping, the structure of the extinguishing agent storage container, the differential device, the control device, etc. are described. Is omitted.
The example of arrangement | positioning of the head based on the fire extinguishing equipment of this invention. When a plurality of closed sprinkler heads are provided in one protection area, the adjacent heads are arrangement plan views showing a state in which two or more adjacent heads are provided in piping linked to a plurality of different installed storage containers. It is a front view of the example which can be made compact by accommodating a some chemical | medical agent storage container in one storage box, and makes arrangement | positioning of FIG. 1 easy. It is an arrangement top view of the conventional powder fire extinguishing equipment which extinguishes fire extinguishing agent simultaneously from a plurality of open type heads provided in a protection section. FIG. 4 is an arrangement plan view of a water-based package type automatic fire extinguishing equipment that simultaneously discharges fire extinguishing chemicals from a plurality of open type heads to extinguish the entire area of a certain protective section as in FIG. FIG. 2 is a plan view of a conventional fire extinguishing equipment arrangement in which a closed sprinkler is used, but a plurality of heads are provided on a pipe extended from one fire extinguishing chemical storage container for the entire object to be protected. It is a fire extinguishing equipment arrangement | positioning of the dry piping system of Claim 2.

Explanation of symbols

1 Fire extinguishing agent storage container 2 Pipe 3 Select valve 4 Branch pipe 5 Open type radiation head 6 Branch pipe 7 Fire detector 8 Fire detector A
9 Fire detector B
DESCRIPTION OF SYMBOLS 10 Closed type radiation head 11 Control valve 12 Control device 13 Storage box 14 Actuator 15 Gas container 16 for pressurization Control wiring 17 Pressure water layer (extinguishing agent)
18 Indicating pressure gauge

Claims (2)

  In fire extinguishing equipment using a plurality of normally closed radiating heads (closed sprinkler heads) that are opened by heat sensing, each protective section included in the spraying range of one closed radiating head in one floor to be protected Are arranged evenly, one closed type radiation head is installed in the center of each protective compartment, and two or more fire extinguishing chemical storage containers are connected to each extended piping for each extinguishing chemical storage container. One closed radiation head for each protection section is assigned to each one, and each protection section of each closed radiation head communicating with the same fire extinguishing drug storage container is arranged in a non-adjacent state with each other, and all the protection sections are different in drug storage An automatic fire extinguishing system characterized by being arranged alternately in each container. The fire extinguishing agent storage container actuating device is activated in conjunction with the operation of the fire detector on the protective floor, so that the fire extinguishing agent is sent into the pipe, and further, the temperature rises due to the expansion of the fire and communicates with the fire extinguishing agent storage container. A dry piping system that includes a pressurized chemical storage container, a pressurized gas container actuating device, and a receiving device in a fire extinguishing facility that releases a fire extinguishing chemical by opening the head closest to the fire source among a plurality of closed sprinkler heads provided in the piping. The fire extinguishing equipment according to claim 1, comprising:

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