JPH0479279B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement of a simple automatic fire extinguishing device that performs initial fire extinguishing using a fire extinguishing fluid in a fire extinguishing fluid storage tank.

[Prior Art] Conventionally, as one means for initial fire extinguishing, a fire detector, a fire extinguishing fluid injector, a fire extinguishing fluid storage tank, etc. are provided, and when the fire detector detects a fire, the fire extinguishing fluid in the fire extinguishing fluid storage tank is installed. A simple automatic fire extinguishing system has been proposed in which fluid is automatically injected from the fire extinguishing fluid injector.

[Problems to be Solved by the Invention] However, with such a simple automatic fire extinguishing system, the time required to spray extinguishing fluid from the extinguishing fluid storage tank is only 15 to 16 seconds, so if the initial extinguishing cannot be done, However, there was a problem in that initial fire extinguishing had to be continued manually. Therefore, inns and the like require manpower to extinguish fires, leading to problems such as a reduction in the number of people to guide the evacuation of guests.

An object of the present invention is to provide a simple automatic fire extinguishing system that can continue extinguishing a fire even after the extinguishing fluid has been sprayed from a fire extinguishing fluid storage tank.

[Means for solving the problems] The structure of the present invention for achieving the above object is as follows:
The present invention will be described with reference to FIGS. 1 and 2, which correspond to embodiments. The present invention includes a fire detector 4, a fire extinguishing fluid injector 5, a fire extinguishing fluid storage tank 6, etc., and the fire detector 4 detects a fire. In the simple automatic fire extinguishing system, the fire extinguishing fluid in the fire extinguishing fluid storage tank 6 is automatically injected from the fire extinguishing fluid injector 5 when the fire extinguishing fluid storage tank 6 is sensed. A check valve 1 is installed between the connection supply port 12 and the fire extinguishing fluid tank 6.
3 and connected by a fire extinguishing fluid supply pipe 14.

[Operation of the Invention] When a fire occurs, such a simple automatic fire extinguishing device connects a fire extinguishing fluid source 17 such as a fire hydrant or a water faucet to the connecting supply port 12 using a hose 18. In this way, a fire extinguishing fluid such as fire extinguishing water can be supplied through the fire extinguishing fluid supply pipe 14, but since the check valve 13 is present, the fire extinguishing fluid storage tank 6
, the extinguishing fluid from the extinguishing fluid supply pipe 14 is not supplied to the extinguishing fluid injector 5 side due to the pressure, and the extinguishing fluid stored in the tank 6 ends and the pressure increases. The supply of extinguishing fluid to the extinguishing fluid injector 5 starts in a state where the extinguishing fluid is lowered, the extinguishing fluid is injected from the extinguishing fluid injector 5, and the initial fire extinguishing is continued.

In this case, the connecting supply port 12 is connected to the extinguishing fluid injector 5
Since the fire extinguishing fluid source 17 is installed outside the fire extinguishing area of the
This can be done safely without being affected by fire.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. 1 and 2 show a first embodiment of the present invention. As shown in the figure, the simple automatic fire extinguishing system of this embodiment installs a simple automatic fire extinguishing unit 3 on the ceiling 2 of each room 1 of a building where a fire may occur.
is installed. This simple automatic fire extinguishing unit 3
The set includes a fire detector 4, a fire extinguishing fluid injector 5, a fire extinguishing fluid storage tank 6, a control panel 7, and a pressurized start cylinder 8, and when the fire detector 5 detects a fire, A start signal is given to the pressurized start cylinder 8 via the control panel 7, and pressure is applied from the cylinder 8 to the extinguishing fluid storage tank 6, and the liquid, powder, gas, etc. extinguishing fluid stored there extinguishes the fire. The fluid is automatically injected from the fluid injector 5. In the case of this embodiment, the fire extinguishing fluid injector 5 is
A vertical tube section 5A supported so as to be vertically rotatable by a bearing section 9, and a plurality of horizontal tube sections 5B connected radially and horizontally to the vertical tube section 5A.
, a downward nozzle 5C provided downward at the lower end of the vertical pipe section 5A, and a horizontal nozzle 5D provided substantially horizontally at the tip of each horizontal pipe section 5B.
The extinguishing fluid injector 5 rotates under the pressure of the extinguishing fluid injected backward from each horizontal nozzle 5D, and injects the extinguishing fluid while rotating.

outside the extinguishing zone of such extinguishing fluid injector 5;
For example, a connecting supply port 12 is installed on the wall surface on the side of the hallway 11 across the wall 10 (in the case shown) or outside the extinguishing fluid injection range. The connecting supply port 12 and the fire extinguishing fluid tank 6 are connected through a check valve 13 and a fire extinguishing fluid supply pipe 14 . Note that 15 is an indicator light indicating the position of the connection supply port 12.

In such a simple automatic fire extinguishing system, when a fire occurs in the room 1 in which the simple automatic fire extinguishing unit 3 is installed, the fire detector 4 of the room 1 detects this, and a detection signal is transmitted via the control panel 7. The pressure is transmitted to the pressurized startup cylinder 8, and as a result, pressure is applied from the cylinder 8 into the fire extinguishing fluid storage tank 6, and the sealing plate (not shown) is broken by the pressure, and the fire extinguishing fluid stored in the tank 6 is released. The extinguishing fluid is injected from the extinguishing fluid injector 5 while rotating the extinguishing fluid injector 5, and initial extinguishing is automatically performed. An employee or the like who learns of the occurrence of a fire connects the fire extinguishing fluid source (fire hydrant) 17 in the indoor fire hydrant storage box 16 to the connecting supply port 12 of the room 1 where the fire occurred with a hose 18, and
Start supplying fire extinguishing fluid from however,
Since the check valve 13 is connected to the fire extinguishing fluid supply pipe 14, the internal pressure is high before the extinguishing fluid storage tank 6 finishes discharging the stored extinguishing fluid (for example,
(approximately 10 kg/cm ² ), the fire extinguishing fluid does not enter the tank 6 due to the action of the check valve 13. After the initial fire extinguishing by the stored fire extinguishing fluid is completed, the internal pressure of the tank 6 decreases.
A fire extinguishing fluid from a fire extinguishing fluid source 17 enters therein;
The inside of the tank 6 is filled with extinguishing fluid, and at that pressure, the extinguishing fluid begins to be sprayed from the extinguishing fluid injector 5 while rotating the injector 5, and subsequently, initial extinguishing with the extinguishing fluid is performed. Therefore, once the connection between the fire extinguishing fluid source 17 and the connection supply port 12 by the hose 18 is completed and the fire extinguishing fluid can be supplied, the employees may leave the site and direct their efforts to guide the evacuation of the guests. be able to.

When a fire engine arrives, extinguishing fluid can also be supplied from the fire engine.

Further, the extinguishing fluid supplied from the extinguishing fluid source 17 is not limited to simple water, but may be extinguishing water mixed with a chemical or the like that improves extinguishing performance, other extinguishing fluids, extinguishing gas, or the like.

FIG. 3 shows a second embodiment of the invention. In this embodiment, a fire detector 4 and a fire extinguishing fluid injector (a non-rotating type is shown in this embodiment) 5 are installed on the ceiling 2, and a fire extinguishing fluid storage tank 6 and a control panel are installed on the ceiling 2. 7. The pressurizing activation cylinder 8 is shown as an example installed on the floor 19 side of the room 1 as a simple automatic fire extinguishing unit 3. Along with this, a fire extinguishing fluid storage tank 6 and a fire extinguishing fluid injector 5
are connected by a fire extinguishing fluid supply pipe 20.

Even in this case, the same effects as in the first embodiment can be obtained.

FIG. 4 shows a third embodiment of the present invention. This embodiment shows an example in which the extinguishing fluid can be supplied from the connection supply port 12 without passing through the extinguishing fluid storage tank 6. Along with this, in this embodiment, an additional tube is installed in the part of the fire extinguishing fluid supply pipe 20 from the check valve 13 to the fire extinguishing fluid storage tank 6.
Two check valves 21 are provided.

Even in this case, the same effects as in the first embodiment can be obtained. In this case, the presence of the check valve 21 can prevent the extinguishing fluid supplied from the connection supply port 12 from entering the extinguishing fluid storage tank 6 .

[Effects of the Invention] As explained above, the simple automatic fire extinguishing device according to the present invention has a connecting supply port provided outside the extinguishing area of the fire extinguishing fluid injector, and a connection between the connecting supply port and the fire extinguishing fluid injector. Since the connection is made with the fire extinguishing fluid supply pipe through the check valve, the connecting supply port can be connected to the fire extinguishing fluid source even after the extinguishing fluid injector finishes spraying the stored extinguishing fluid in the extinguishing fluid tank due to automatic fire detection. By supplying the fire extinguishing fluid, the fire extinguishing fluid can be further injected from the fire extinguishing fluid injector, and the initial fire extinguishing can be continued. Therefore, even after the extinguishing fluid stored in the extinguishing fluid storage tank has been discharged, there is no need for employees to manually start the initial extinguishing process. This will make it possible for people to leave their homes, and will be able to use human resources to guide the evacuation of guests and others. In addition, even if the connection supply port and the fire extinguishing fluid supply pipe are connected to the fire extinguishing fluid injector in this way, the connection is made via the check valve, so the discharge of the stored fire extinguishing fluid in the fire extinguishing fluid storage tank is completed. After that, the extinguishing fluid supplied from the connecting supply port starts to be released.
It has the advantage that it does not interfere with the release of the stored fire extinguishing fluid in the fire extinguishing fluid storage tank.

Furthermore, in the present invention, since the connection supply port is provided outside the fire extinguishing area of the fire extinguishing fluid injector, the work of connecting the fire extinguishing fluid source to the connection supply port can be performed safely without being affected by a fire. I can do it.

[Brief explanation of drawings]

1 and 2 are longitudinal cross-sectional views and perspective views of a first embodiment of a simple automatic fire extinguishing system according to the present invention, and FIGS. 3 and 4 are views of second and third embodiments of a simple automatic fire extinguishing system according to the present invention. FIG. 3 is a longitudinal cross-sectional view of the embodiment. 1... Room, 2... Ceiling, 3... Simple automatic fire extinguishing unit, 4... Fire detector, 5... Fire extinguishing fluid injector, 6... Fire extinguishing fluid storage tank, 10... Wall,
11... Corridor, 12... Connection supply port, 13... Check valve, 14... Fire extinguishing fluid supply pipe, 17... Fire extinguishing fluid source, 18... Hose, 19... Floor, 20... Fire extinguishing fluid supply Pipe, 21...Check valve.

Claims (1)

[Scope of Claims] 1. A fire extinguishing fluid storage tank is provided with a fire detector, a fire extinguishing fluid injector, a fire extinguishing fluid storage tank, etc., and when the fire detector detects a fire, the fire extinguishing fluid in the fire extinguishing fluid storage tank is automatically discharged from the fire extinguishing fluid injector. In a simple automatic fire extinguishing device adapted to spray fire extinguishing fluid, a connecting supply port is installed outside the extinguishing area of the extinguishing fluid injector,
A simple automatic fire extinguishing system characterized in that the connecting supply port and the fire extinguishing fluid injector are connected by a fire extinguishing fluid supply pipe via a check valve. 2. The simple automatic fire extinguishing system according to claim 1, wherein the fire detector, the fire extinguishing fluid injector, the fire extinguishing fluid storage tank, etc. are set as a simple automatic fire extinguishing unit. 3. The simple automatic fire extinguishing system according to claim 2, wherein the simple automatic fire extinguishing unit is installed on the ceiling of a building. 4. The simple automatic fire extinguishing system according to claim 1, wherein the fire extinguishing fluid storage tank is installed on the floor side of a building.