JP5922276B2 - Fire extinguishing equipment - Google Patents

Description

  The present invention relates to fire extinguishing equipment.

  There is a water pipe direct connection type sprinkler fire extinguishing equipment. This is a sprinkler fire extinguishing facility that uses water as a water supply source and has a fire extinguishing head on a fire extinguishing pipe branched from the water pipe. It does not require expensive equipment such as a fire prevention water tank or a pressurized water supply device, and the equipment budget is This is a simple sprinkler fire extinguishing system that can be installed in limited detached houses and small social welfare facilities.

In general, the water pressure of a water supply is about 0.5 MPa, and the water supply capacity of a water pipe direct connection type sprinkler fire extinguishing facility is lower than a conventional building sprinkler fire extinguishing facility that supplies high-pressure water by a pressurized water supply device. In order to increase the fire extinguishing capability by supplying fire extinguishing water from another water source to a fire extinguishing pipe in the event of a fire, some have a connecting pipe and a water supply port. (See patent literature)
There is also a connected watering facility installed in a basement where it is difficult for fire fighting activities from outside by a public fire brigade. This equipment has a fire extinguishing head connected to the fire extinguishing pipe connected to a fire extinguishing pipe, and this fire extinguishing pipe is connected to a connected water supply port provided outdoors. A fire hose extended from a fire engine is connected to the connected water supply port. Fire extinguishing activities.

JP 2005-66065 A

If the building does not face a large road and is in a position behind the road, the fire engine may not be able to discharge water when the building becomes a fire. Moreover, even if a water supply port connected to a fire-fighting pipe is provided outside a small-scale social welfare facility or a low-rise building such as a house with a water pipe direct-attached sprinkler fire-fighting equipment or a connected water sprinkler, In some cases, the fire truck cannot receive water from the fire truck because the fire truck cannot enter the water feed position. In view of the above problems, the present invention receives water supply from a fire engine through a water supply port common to a plurality of neighboring low-rise buildings, even if the building is located behind the road and cannot receive water supply from the fire engine. It is an object to obtain a fire extinguishing facility that can spray water only to a building that has become a fire without being damaged.

(1) The fire extinguishing equipment according to the present invention is provided in a plurality of neighboring low-rise buildings, a closed fire extinguishing head that is opened by the heat of a fire, a fire extinguishing pipe provided with the fire extinguishing head, and the fire extinguishing pipe. A sprinkling facility that is formed from a connection for receiving water supply from the outside and does not have its own water source and water supply facility, or a closed-type fire extinguishing head that is opened by the heat of a fire and the fire extinguishing head, and the base end side is A water sprinkler fire extinguishing facility directly connected to a water pipe having a fire extinguishing pipe connected to a water pipe through a backflow prevention means and supplied with water pressure in the event of a fire and a connection part provided in the fire extinguishing pipe for receiving water from the outside, When the linking sprinkler or to feed water from the outside to the sprinkler fire extinguishing facility, fire engine common to the plurality of neighboring low-rise building is provided at a position facing the road of passable width And Mizuguchi, connected to the branched end portion the water supply port via the pressure reducing means is stretched proximal end is connected to the connecting portion of the plurality of neighbor low-rise building through the backflow prevention unit to the water supply port A connecting pipe formed by a pipe to be connected to the water spout , the sprinkler fire extinguishing equipment or the sprinkler fire extinguishing equipment, even if the building is located in the back of the road and cannot receive water from the fire engine. It is characterized by being able to sprinkle water only to buildings that have become fires without being damaged by receiving water supply from fire trucks.

(2) The fire extinguishing equipment according to the present invention is the fire extinguishing equipment according to the present invention. In (1), the sprinkler fire extinguishing equipment is a fire detecting means, an electric valve that fills the fire extinguishing pipe when opened, and the fire detecting means detects a fire. Then, a control means for opening the motor-operated valve is further provided, and the fire-extinguishing pipe is not filled with water during normal times.

According to the configuration of (1) above , the fire-extinguishing equipment according to the present invention faces a width road where a fire engine can pass even if it is a building that is located behind the road and cannot receive water from the fire engine. Water can be sprayed only to buildings that have become fired without being damaged by receiving water from a fire engine via a water supply port common to a plurality of neighboring low-rise buildings provided at the location.

Fire extinguishing facility according to the present invention, according to the above configuration (2), can prevent the filling of water is normal state extinguishing piping does not cause water loss not be sprinkled with damaged about damage or sprinkler head pipe.

1 is a configuration diagram of a sprinkler fire extinguishing facility according to Embodiment 1. FIG. It is a block diagram of the sprinkler fire extinguishing equipment which concerns on Embodiment 2. FIG.

[Embodiment 1]
Based on FIG. 1, the structure of the fire extinguishing equipment which concerns on embodiment of this invention is demonstrated. The present embodiment will be described as a wet sprinkler fire extinguishing facility in which a sprinkler pipe 11 serving as a fire extinguishing pipe is filled.

  Buildings A and B are neighboring buildings equipped with water pipe direct connection type sprinkler fire extinguishing equipment. The connecting pipe 10 connected to the sprinkler pipe 11 of each building is connected to a water supply port 7 common to each building to which a water supply hose for receiving the supply of fire-fighting water from the outside is connected. The water outlet 7 is not limited to the buildings A and B. Similarly, the water outlet 7 may be shared with a neighboring building equipped with a water pipe direct connection type sprinkler fire extinguishing equipment, and the water outlet 7 can also be used on a regional basis. Disaster prevention facilities become possible. In addition, the connecting pipe 10 branched and connected to the sprinkler fire extinguishing equipment of each building has an inner diameter and strength sufficient to supply water to each building with a predetermined amount of water for the main pipe from the water supply opening 7 to each building. If provided, the main part can be shared by each building.

  The water pipes drawn into the buildings A and B from the water main 1 are introduced into the building via the water meter 2. A water pipe branches on the secondary side of the water meter 2, one is connected to a general water supply apparatus, and the other is connected to a sprinkler pipe 11 for fire extinguishing.

  The sprinkler pipe 11 disposed in the building is provided with a sprinkler head 3 as a fire extinguishing head. The sprinkler head 3 is a closed head that sprays water by opening an internal valve body by the heat of fire in the event of a fire. The fire extinguishing head is a general term for the closed head and the open head. The base end side of the sprinkler pipe 11 is connected to the secondary side of the water meter 2, and the other end is connected to the terminal water tap 4. The end faucet 4 is connected to a commonly used water supply device such as a flush toilet, so that water in the sprinkler pipe 11 is not retained, and the sanitary state as tap water is maintained.

  The sprinkler pipe 11 is connected to a connecting pipe 10 for supplying water from the outside. The sprinkler pipe 11 on the base end side from the position where the connection pipe 10 is connected, so that the fire-fighting water supplied from the connection pipe 10 is not mixed into the tap water. On the side, a check valve 5 is provided as a backflow prevention means. Moreover, the connection pipe 10 is provided with a check valve 6 as a backflow prevention unit for each building so that the tap water from the sprinkler pipe 11 does not flow into the connection pipe 10.

The connecting pipe 10 is connected to a water supply port 7 outside the building. Building either A or B, or both, if the building is such that in a position set back from the road not facing the large road, by stretching the connecting pipe 10, a fire engine water supply port 7 It is installed at a position facing the width road where can be passed.

Note that the check valves 5 and 6 as the backflow preventing means may use other means that allows water to flow only in the direction of feeding water toward the sprinkler pipe 11.
In an extreme case, a manual open / close valve that manually opens and closes may be used. However, the manual open / close valve used for the check valve 5 is normally open, and the manual open / close valve used instead of the check valve 6 is normally closed. In addition, it is necessary not to impair the function of automatic fire extinguishing by the sprinkler fire extinguishing equipment, while preventing stagnation of tap water, which is a sanitary problem in normal times. Further, when the fire spreads and the inhabitants evacuate, when the water is supplied from the fire engine and is supplied from the water supply port 7 to the sprinkler pipe 11 through the connecting pipe 10, the check valve 5 is used. It is essential to close the manual on-off valve used instead of the valve and open the manual on-off valve used instead of the check valve 6. Therefore, if the manual on-off valve is used without stopping, it must be provided outside the building. As described above, when a manual on-off valve is used as the backflow prevention means, an appropriate operation is required in the event of a fire, and if the operation is mistaken, the fire fighting activity may not be performed properly. As the backflow prevention means, a check valve that does not depend on human operation is suitable.

  Next, the operation of the sprinkler fire extinguishing equipment according to the present invention will be described.

  When a fire is generated and the sprinkler head 3 is activated, water in the sprinkler pipe 11 is sprinkled from the sprinkler head 3 into the building to perform initial fire extinguishing and fire suppression.

  If the fire engine that received the fire report has not been extinguished when it arrives, the fire hose of the fire engine is connected to the water supply port 7 and water is supplied from the fire engine. As a result, pressurized fire-extinguishing water flows into the connecting pipe 10, and water is sprinkled from the sprinkler head 3 operated via the sprinkler pipe 11, thereby extinguishing and suppressing the fire.

  Note that the water pressure of the water supply is lower than 0.5 MPa, and the water supply direct sprinkler fire extinguishing equipment is designed to operate at a low water pressure of the water supply (for example, 0.1 MPa), so the water supply pressure from the fire hose is too high. In some cases, the sprinkler fire extinguishing equipment and the water supply equipment may be damaged. For example, for a water supply port 7 that receives high-pressure fire-fighting water of 1 MPa or more, a pressure reducing valve 8 as a pressure reducing means is provided on the secondary side of the water supply port 7. The pressure reducing valve 8 lowers the water pressure to a level that is higher than the water pressure of the water supply and does not damage the water supply equipment or the sprinkler fire extinguishing equipment.

[Embodiment 2]
Based on FIG. 2, the structure of the fire extinguishing equipment which concerns on embodiment of this invention is demonstrated. In FIG. 2, the same parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The sprinkler fire extinguishing equipment as the fire extinguishing equipment according to the second embodiment is different from the first embodiment in that it is not a wet sprinkler fire extinguishing equipment shown in the first embodiment but a dry sprinkler fire extinguishing equipment.

Hereinafter, the changes will be described in detail.
The secondary sprinkler pipe 11 of the motor-operated valve 91 that is opened when a fire is sensed is controlled so that it is not filled with water during normal times and is filled with water in the event of a fire.

  The conshielded sprinkler head 31 includes a conshielded portion that is a dome-shaped cover that covers and protects the sprinkler head of the sprinkler head. The conshield portion falls at a temperature lower than the temperature at which the valve body of the sprinkler head opens, detects a fire when the conshield portion falls, and sends a fire signal from the contact. In addition, although the sprinkler head 31 was demonstrated as the conshield type, you may send out a fire signal by a contact etc. from a sprinkler head main body by the action | operation of a sprinkler head. Further, the conshielded sprinkler head 31 may be a normal sprinkler head that does not have a conshielded portion, and a fire detector may be separately provided to obtain a fire signal.

When the control panel 92 receives the fire signal, the alarm buzzer 93 is sounded to warn that a fire has occurred, and the motor-operated valve 91 is opened. When the motor-operated valve 91 is opened, the water for fire extinguishing on the primary side of the motor-operated valve 91 flows into the sprinkler pipe 11 connected to the secondary side of the motor-operated valve 91 and sprays water from the sprinkler head 31.
In normal times, the tap water is filled only up to the primary side of the motor-operated valve, so that no stagnant water is generated, and it is not necessary to provide the terminal water tap 4 provided in the first embodiment, and it is deleted.

  The water pipe direct connection type dry sprinkler fire extinguishing equipment constructed in this way is not filled with the sprinkler pipe 11 at normal times, so water is not sprinkled due to the damage of the pipe or the sprinkler head, and the water loss is reduced. It is difficult to wake up. Water sprinkling is started when the conditions of fire alarm due to falling conshielded part of the sprinkler head 31 and opening of the valve body due to the heat of the sprinkler head 31 are aligned.

  Other configurations and operations are the same as those in the first embodiment.

[Embodiment 3]
Although not shown in the drawings, the embodiment is also applied to a sprinkler system that includes a fire extinguishing head, a fire extinguishing pipe, a connecting pipe, and a connected water supply port, and has no original water source or water supply equipment unlike a sprinkler fire extinguishing equipment. The invention disclosed in 1 or 2 can be applied.

  The connected sprinkler constructed in such a way can receive water from the fire engine through the water outlet to the fire extinguishing pipe even when the building does not face a large road and is in the back of the road, Even if high-pressure fire-fighting water is supplied from the water outlet, it will not be damaged by the high-pressure water, and since one common water outlet is used in neighboring buildings, the land required for installing the water outlet can be minimized. Disaster prevention facilities can be made on a regional basis.

  Moreover, by making the fire extinguishing head a closed type head that is opened with the heat of a fire, water can be sprayed only to the fired building.

1 water main, 2 water meter, 3 sprinkler head, 31 conshielded sprinkler head, 4 terminal water faucet, 5 check valve, 6 check valve, 7 connecting water inlet, 8 pressure reducing valve, 91 motor operated valve, 92 control Panel, 93 Alarm buzzer, 10 Connection piping, 11 Sprinkler piping

Claims (2)

Closed fire extinguishing head provided in a plurality of adjacent low-rise buildings, which is opened by the heat of fire, a fire extinguishing pipe provided with the fire extinguishing head, and a connection part provided in the fire fighting pipe for receiving water supply from the outside Connected watering equipment that is formed and does not have its own water source and water supply equipment , or a closed-type fire extinguishing head that is opened by the heat of a fire and the fire extinguishing head are provided, and the base end side is connected to a water pipe via a backflow prevention means A water sprinkler fire extinguishing system directly connected to a water pipe having a fire extinguishing pipe supplied with water pressure in the event of a fire and a connection part provided in the fire extinguishing pipe for receiving water from the outside,
A water outlet common to the plurality of neighboring low-rise buildings provided at a position facing a wide road through which a fire truck can pass in order to supply water to the connected watering facility or the sprinkler fire extinguishing facility from the outside,
A pipe having a branched end portion connected to the connection portions of the plurality of neighboring low-rise buildings via backflow prevention means and a base end portion extending to the water supply port and connected to the water supply port via a pressure reducing means A connecting pipe formed by
With
Even if the building is located behind the road and cannot receive water from the fire engine, the sprinkler or sprinkler fire extinguishing system will receive fire from the fire engine through the water supply port without damage. Fire extinguishing equipment characterized by being able to sprinkle water only in the old building . The sprinkler fire extinguishing equipment further comprises a fire detection means, an electric valve for filling the fire extinguishing pipe when opened, and a control means for opening the electric valve when the fire detection means senses a fire, The fire-extinguishing equipment according to claim 1 , wherein the fire-extinguishing pipe is not filled with water.

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