JP3940837B2 - Automatic fire extinguishing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic fire extinguishing apparatus particularly suitable for installation in a relatively small building such as a residential building or a general house. In the event of a fire, quick and efficient automatic fire extinguishing is expected even if a power failure occurs. In addition, it is possible to ensure sufficient safety while having a simple structure at a low cost.
[0002]
[Prior art]
As the most advanced automatic fire extinguishing equipment in the past, what is disclosed in JP 2001-109966 A is generally known. In addition to extinguishing agent radiating means, a plurality of individual automatic fire extinguishing devices having at least a fire sensor and a transfer circuit, and each individual automatic fire extinguishing device connected to the transfer circuit of each individual automatic fire extinguishing device. It has a judgment circuit that receives the information from the fire sensor and judges the situation, based on the judgment result according to the information content, the alarm transmission situation, the fire extinguishing agent radiation situation, the situation after fire extinguishing, etc., and their degree, etc. A fire extinguishing system is configured by a receiver that displays the presence or absence of an alarm that takes into account, or the location and status of a fire.
[0003]
[Problems to be solved by the invention]
The above-mentioned fire extinguishing system, on the other hand, has major advantages such as enabling quick and qualified automatic fire extinguishing activities only at the location that caused the fire, and improving the initial fire extinguishing performance. Due to the high equipment costs and the large-scale equipment, it is unsuitable for multi-use buildings and other relatively small buildings.
[0004]
In general, when installing an automatic fire extinguishing system using a sprinkler for a relatively large building, it is necessary to install a pump room, secure a water source, and also provide a power source for securing large power. It can be said that it is difficult to apply to small buildings. Furthermore, there is a problem that the fire extinguishing system cannot be started when the electric circuit is cut off due to a fire or an accident.
[0005]
[Means for Solving the Problems]
Accordingly, the present invention solves the above-mentioned problems and is particularly suitable for installation in a relatively small building such as a residential building or a general house and develops a quick and efficient automatic fire extinguishing system even when a power failure occurs. It is a thing.
[0006]
Specifically, it comprises a closed-type radiator disposed in each part of a building via a pipe, and a fire extinguishing liquid tank unit connected to the pipe, and the fire extinguishing liquid tank unit contains a fire extinguishing liquid inside. A fire extinguishing liquid storage tank to be filled, a guide pipe installed in the vertical direction along the outer surface of the fire extinguishing liquid storage tank, and attached to the lower end of the guide pipe with the activation device facing the guide pipe When the pressurization gas cylinder and the starter of the pressurization gas cylinder are activated, the gas introduction pipe for pressure-feeding the pressurized gas ejected from the pressurized gas cylinder into the fire extinguishing liquid storage tank, and rolling down the guide pipe start device and starting weight for starting the mounted airtightly to the upper end of the fire-extinguishing liquid storage tank, provided with a float floating on the extinguishing liquid surface of fire-extinguishing liquid storage tank to the lower end, also above the upper end Idopaipu a possible forward and backward in the upper part, to an automatic fire extinguishing equipment comprising a said starting weight actuator which is projected a lockable Tsumugakari Tome杆 only when rising of the float.
[0007]
In the above configuration, when a fire occurs, the closed radiator is opened by flame or hot air, and the fire extinguishing liquid stored in the fire extinguishing liquid storage tank of the fire extinguishing liquid tank unit is discharged from the radiator via the pipe. Radiated. When the fire extinguishing liquid in the fire extinguishing liquid storage tank decreases, the liquid level of the fire extinguishing liquid descends, and the float that floats on the liquid level also descends accordingly, so the operation that entered the guide pipe and locked the weight As a result of the lowering of the weight locking rod of the device, the starting weight falls along the guide pipe and hits the starting device to open the pressurizing gas cylinder. As the pressurization cylinder is opened, the pressurized gas is pumped into the fire extinguishing liquid storage tank through the gas introduction pipe, and the fire extinguishing liquid storage tank is pressed to apply the fire extinguishing liquid in the storage tank through the piping. It is pumped to the radiator and automatically sprayed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
In the following, the specific contents of the present invention will be described based on the embodiment shown in FIGS. 1 to 3. Reference numeral 1 denotes a building, 2 a main pipe, 3 a radiator, and 5 a fire extinguishing liquid tank unit. In this case, the building 1 is exemplified by a small four-story structure from the first floor portion 1a to the fourth floor portion 1d. The main pipe 2 is disposed from the fire extinguishing liquid tank unit 5 to each floor 1a to 1d, and a test and drain valve 4 is attached to the tip (lower end).
[0009]
The main pipe 2 is provided with branch pipes 2a at portions connecting to the floors 1a to 1d, and the radiators 3 are attached to the branch pipes 1a to 1d. In this case, as the radiator 3, in this case, for example, a closed type sprinkler, a closed type equipped with a thermal release mechanism that can be opened and radiate a fire extinguishing liquid when heated to a certain temperature or more by flame or heat. Is used.
[0010]
Further, as shown in detail in FIG. 2, the fire-extinguishing liquid tank unit 5 is installed in the vertical direction along the fire-extinguishing liquid storage tank 6 connected to the main pipe 2 and the outer surface of the fire-extinguishing liquid storage tank 6. The guide pipe 7, the pressurizing gas cylinder 8 attached to the lower end of the guide pipe 7 with the hitting means 9 of the starting device 10 facing the inside of the guide pipe 7, and the starting device 10 of the pressurizing gas cylinder 8 are started. At this time, it is possible to start the starter 10 by rolling and dropping in the guide pipe 7 and the gas introduction pipe 11 for pressure-feeding the pressurized gas ejected from the pressurized gas cylinder 8 into the fire extinguishing liquid storage tank 6. When the starting weight 12 and the extinguishing liquid in the extinguishing liquid storage tank 6 are reduced, the above-described starting weight 12 is dropped to open the pressurizing gas cylinder 8, and the pressurized gas in the pressurizing gas cylinder 8 is removed. Fire extinguisher tank uni Composed of actuating device 15 for the order to supply the bets 5.
[0011]
The activation device 10 and the actuation device 15 of the pressurization gas cylinder 8 will be described in more detail. The activation device 10 of the pressurization gas cylinder 8 has a pressurization gas cylinder 8 at the lower end as shown in FIG. A mounting portion 10a having a hollow inside for mounting, and a sharpened lower end when planted in the mounting portion 10a so as to be always biased upward via a spring 10b between the holding body 10d. A hollow needle body 10c sharpened at a point, a gas introduction pipe connection part 10e for connecting the gas introduction pipe 11 to communicate with the hollow chamber of the attachment part 10a, and an upper end guide through the gas introduction pipe connection part 10e. It comprises striking means 9 facing the inside of the pipe 7.
[0012]
The actuating device 15 is attached to the upper end opening of the fire extinguishing liquid storage tank 6 and has a cylindrical shape with the lower end opened, and an operating rod 14 is penetrated in the vertical direction inside. The part is configured to receive the float 13 floating on the fire extinguishing liquid surface in the fire extinguishing liquid storage tank 6 provided at the lower end of the operating rod 14. Further, the upper side of the above-described operating rod 14 is projected upward so that the weight locking rod 14a can move up and down while maintaining airtightness, and the weight locking rod 14a is guided only when the float 13 is raised. The start weight 12 is configured to enter the upper portion of the cradle.
[0013]
In the figure, reference numeral 16 denotes a check valve fitted coaxially to the weight locking rod 14, and when the pressurized gas is pumped from the pressurizing gas cylinder 8 into the fire extinguishing liquid storage tank 6, it penetrates through the actuator 15. The fire extinguishing liquid 17 in the fire extinguishing liquid storage tank 6 is pressurized while being pressed against the inner peripheral surface of the upper through hole of the working rod 14 that is in operation, and the building 1 is connected via the main pipe 2 and the branch pipe 2a. Can be pumped toward each radiator 3.
[0014]
Therefore, the float 13 floats on the liquid level of the fire extinguishing liquid 17, and when the filling amount of the fire extinguishing liquid 17 is sufficient and the position of the liquid level is close to the actuator 15, the float 13 rises. Accordingly, the operating rod 14 rises, and the weight locking rod 14 at the upper end enters the guide pipe 7 to prevent the activation weight 12 from falling. In the figure, V represents a fire extinguishing liquid supply / stop valve.
[0015]
On the other hand, the fire-extinguishing liquid 17 filled in the fire-extinguishing liquid storage tank 6 may be water alone, and more preferably, a general-purpose liquid fire extinguishing agent or a foaming extinguishing agent is used. In this case, when alkali salts are mixed in the fire extinguishing liquid, generation of toxic gases such as carbon monoxide can be suppressed, and evacuation can be facilitated.
[0016]
In the above-described configuration, when a fire occurs, the closed radiator 3 installed corresponding to the location of the fire is opened by the flame or hot air, and the fire extinguishing liquid storage tank 6 of the fire extinguishing liquid tank unit 5 is opened. The fire extinguishing liquid 17 stored in the above is radiated from the radiator 3 at the target location described above toward the fire occurrence location via the main pipe 2 and the branch pipe 2a.
[0017]
When the extinguishing liquid 17 in the extinguishing liquid storage tank 6 decreases, the liquid level of the extinguishing liquid descends, and the float 13 that floats on the liquid surface also descends accordingly, and therefore enters the guide pipe 7 and enters the starting weight 12. As a result of the lowering of the weight locking rod 14a of the operating device 15 that has been locked, the starting weight 12 falls along the guide pipe 7 and strikes the striking means 9. Further, the striking means 9 descends to lower the needle-piercing body 10c, and the opening of the pressurizing gas cylinder 8 is opened by its sharp tip.
[0018]
Further, as the pressurizing cylinder 8 is opened, the pressurized gas is pumped into the fire extinguishing liquid storage tank 6 through the gas introduction pipe 11, and the fire extinguishing liquid storage tank 6 is pressed to put the fire extinguishing liquid 17 into the main pipe 2 and the branch pipe. It is pumped to the radiator 3 at the location of the fire through 2a and automatically sprayed.
[0019]
In the above embodiment, the case where the fire-extinguishing liquid tank unit 5 is installed on the rooftop portion of the building 1 has been described. However, the present invention is not necessarily limited to the rooftop, and any location inside or outside the building 1 on the lower floor. It is also possible to install in.
[0020]
【The invention's effect】
As described above, the present invention includes a radiator disposed in each part of a building via a pipe and a fire extinguishing liquid tank unit connected to the pipe, and the fire extinguishing liquid tank unit further includes a fire extinguishing liquid inside. A fire extinguisher storage tank filled with a gas, a guide pipe installed vertically along the outer surface of the fire extinguishing liquid storage tank, and a lower end of the guide pipe are attached with an activation device facing the guide pipe When the starter of the pressurization gas cylinder and the pressurization gas cylinder is activated, the gas introduction pipe that pressurizes the pressurization gas ejected from the pressurization gas cylinder into the extinguishing liquid storage tank, and the guide pipe rolls. and starting weight to activate the starter falls to the attached airtightly to the upper end of the fire-extinguishing liquid storage tank, provided with a float floating on the extinguishing liquid surface of fire-extinguishing liquid storage tank to the lower end, also the upper end Wherein A retractable into the guide pipe in the upper section, the starting weight only when rising of the float is made of an actuating device which is projected a lockable Tsumugakari Tome杆.
[0021]
Therefore, the installation of a pump room such as a conventional automatic fire extinguishing device, the securing of a water source, and other large-scale and expensive equipment are not required, so it is suitable for use in multi-use buildings and other relatively small buildings. In addition, since a pressurized gas cylinder is used as a starting source, there is no problem when the electric circuit is cut off due to a fire or an accident, etc., and within a certain value over a long period of time compared to the case where the extinguishing liquid storage tank is a pressure accumulation type. The pressure can be maintained and the durability is excellent.
[0022]
Furthermore, when alkali salts are mixed in the fire extinguishing liquid as a fire extinguishing liquid, generation of toxic gases such as carbon monoxide can be suppressed, and evacuation can be further facilitated.
[Brief description of the drawings]
FIG. 1 is a system diagram in a case where fire extinguishing equipment is installed in a small-scale building according to an embodiment of the present invention.
FIG. 2 is a side view showing a part of the extinguishant tank unit in detail, in cross section.
FIG. 3 is a partially enlarged longitudinal sectional view of an activation device in a gas cylinder for pressurization.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Building 2 Main piping 2a Branch piping 3 Radiator 4 Valve 5 Fire extinguishing liquid tank unit 6 Fire extinguishing liquid storage tank 7 Guide pipe 8 Gas cylinder for pressurization 9 Impacting means 10 Start-up device 10a Attachment part 11 Gas introduction pipe 12 Start-up weight 13 Float 14 Actuating rod 14a Weight locking rod 15 Actuating device 16 Check valve 17 Fire extinguishing liquid V valve

Claims (4)

The fire extinguishing liquid tank unit is connected to the above-mentioned piping, and the fire extinguishing liquid tank unit is connected to the above-mentioned piping. A liquid storage tank, a guide pipe installed vertically along the outer surface of the fire extinguishing liquid storage tank, and a gas cylinder for pressurization attached to a lower end of the guide pipe with an activation device facing the guide pipe When the starter of the pressurization gas cylinder is started, the starter by rolling and dropping in the guide pipe, the gas introduction pipe for pumping the pressurization gas ejected from the pressurization gas cylinder into the fire extinguisher storage tank and starting weight to start, the airtightly attached to the upper end of the fire-extinguishing liquid storage tank, provided with a float floating on the extinguishing liquid surface of fire-extinguishing liquid storage tank at the lower end and said guide pies the upper end Of a retractable into the upper portion, an automatic fire extinguishing equipment comprising a said starting weight actuator which is projected a lockable Tsumugakari Tome杆 only when rising of the float. The automatic fire-extinguishing equipment according to claim 1, wherein the closed radiator has a heat-sensitive opening mechanism. The automatic fire-extinguishing equipment according to claim 1 or 2, wherein an alkali salt is mixed in the fire-extinguishing liquid in the fire-extinguishing liquid storage tank. The automatic fire-extinguishing equipment according to claim 1, wherein the actuating device is provided with a check valve above the float.

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