JP2012200359A - Fire extinguishing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems that a fire engine cannot spray water when a building does not face a large road and is located back from the road, and that water supply from the fire engine cannot be received when a detached house, a small-scale social welfare facility or the like is provided with water pipe direct connection type sprinkler fire-extinguishing equipment or interconnecting sprinkling equipment, and with a water supply port which receives supply water from outside, interconnected with fire-extinguishing piping of the equipment.SOLUTION: Piping for interconnection of the water pipe direct connection type sprinkler fire-extinguishing equipment or the interconnecting sprinkling equipment is extended, while the water supply port is provided at a position being located outside the building and facing a road having a width enabling the fire engine to pass through. Besides, the piping for interconnection is connected also to fire-extinguishing piping installed in neighboring buildings and thus the water supply port is used in common.

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. In addition, even if a water supply outlet connected to a fire extinguishing pipe is provided outside a building such as a small social welfare facility or a house where a water pipe direct connection type sprinkler fire extinguishing equipment or a connected watering equipment is installed, Since the fire engine cannot enter the position of the water supply port, the water supply port may not be able to receive water from the fire engine.

  The fire-extinguishing equipment according to the present invention includes a fire-fighting pipe disposed in a building and provided with a fire-fighting head, a connection pipe connected to the fire-fighting pipe and supplying water from the outside, and a water supply hose from the outside to the connection pipe In a fire extinguishing facility having a water supply port to be connected, the connecting pipe is extended, and the water supply port is provided at a position facing a wide road outside the building where a fire truck can pass. .

  The fire-extinguishing equipment according to the present invention includes a fire-fighting pipe disposed in a building and provided with a fire-fighting head, a connection pipe connected to the fire-fighting pipe and supplying water from the outside, and a water supply hose from the outside to the connection pipe In the fire extinguishing equipment provided with a connected water supply port, a pressure reducing means is provided on the secondary side of the water supply port.

  The fire extinguishing equipment according to the present invention is a sprinkler fire extinguishing equipment in which a base end side of the fire extinguishing pipe is connected to a water pipe.

  The fire-extinguishing equipment according to the present invention is characterized in that the fire-extinguishing pipe closer to the base end side than the position to which the connecting pipe is connected and the connecting pipe are provided with backflow prevention means, respectively.

  In the fire-extinguishing equipment according to the present invention, the connecting pipe is also connected to a fire-extinguishing pipe installed in a building near the building, and includes the backflow prevention means provided in the connecting pipe for each building. The piping is provided with the water supply port common to the building.

  According to the fire extinguishing equipment according to the present invention, water is supplied from the fire engine to the fire extinguishing pipe through the water supply port even when the building does not face a large road and is in a position deep from the road. Can receive.

  According to the fire-extinguishing equipment according to the present invention, even if high-pressure fire-fighting water is supplied from the water supply port, the fire-extinguishing equipment is not damaged by the high-pressure water.

  According to the fire extinguishing equipment according to the present invention, fire extinguishing can be performed using tap water as a water source, and even if the building does not face a large road and is located behind the road, In addition, water can be supplied from the fire engine to the fire extinguishing pipe through the water supply port, and even if high-pressure fire-fighting water is supplied from the water supply port, the fire-extinguishing equipment is not damaged by the high-pressure water.

  According to the fire extinguishing equipment according to the present invention, the water for fire extinguishing supplied from the connecting pipe 10 and the tap water are not mixed. For this reason, tap water can maintain a sanitary state, and also tap water does not flow into the connecting pipe 10.

  According to the construction of claim 5, the fire-extinguishing equipment according to the present invention uses a single water outlet common to neighboring buildings, so that the land required for installing the water outlet can be minimized, and the disaster prevention equipment on a regional basis. Is possible.

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 having no conshield part, 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 configured 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 tap, 5 Check valve, 6 Check valve,
7 Connecting water inlet, 8 Pressure reducing valve,
91 Motorized valve, 92 Control panel, 93 Alarm buzzer,
10 Piping for connection, 11 Sprinkler piping

Claims (5)

A fire extinguishing pipe arranged in a building and provided with a fire extinguishing head, a connecting pipe connected to the fire extinguishing pipe and supplying water from the outside, and a water supply port to which a water supply hose from the outside is connected to the connecting pipe In fire extinguishing equipment,
The fire extinguishing equipment is characterized in that the pipe for connection is extended and the water supply port is provided at a position facing a wide road outside the building where a fire truck can pass. A fire extinguishing pipe arranged in a building and provided with a fire extinguishing head, a connecting pipe connected to the fire extinguishing pipe and supplying water from the outside, and a water supply port to which a water supply hose from the outside is connected to the connecting pipe In fire extinguishing equipment,
A fire extinguishing equipment comprising pressure reducing means on the secondary side of the water supply port.   The fire extinguishing equipment according to claim 1 or 2, wherein a base end side of the fire extinguishing pipe is a sprinkler fire extinguishing equipment connected to a water pipe.   The fire-extinguishing system according to any one of claims 1 to 3, further comprising a backflow prevention unit in each of the fire-extinguishing pipe on the base end side of the position where the connecting pipe is connected and the connecting pipe. Facility.   The connection pipe is connected to a fire extinguishing pipe installed in a building near the building, and includes the backflow prevention means provided in the connection pipe for each building, and the connection pipe is common to the building. The fire extinguishing equipment according to claim 4, further comprising a water supply port.