JP2000001925A - Liquid flowing-out device for strengthening fire resistant performance of heat insulating material and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lengthen fire resistant time of a heat insulating material at disaster stricken time by a fire by oozing out chemicals such as water at disaster-stricken/temperature rise time without using a motive power source. SOLUTION: A fire extinguishing liquid preserving vessel 1 is arranged in the vicinity of a heat insulating material 3 to thereby insert a pipe 6 passing through a thermosensible actuating valve 2 into the heat insulating material 3. An air hole 8 is arranged in the fire extinguishing liquid preserving vessel 1 so that a thermosensible actuating valve 9 is also attached to this. Operation detecting holes 5 are arranged in an outer shell 7 of the heat insulating material. When an ambient temperature of the heat insulating material 3 rises by a fire, the thermosensible actuating valve 2 and the thermosensible actuating valve 9 are opened so that liquid of the fire extinguishing liquid preserving vessel 1 wets the heat insulating material 3 through the pipe 6. Afterwards, a fire extinguishing liquid oozing out to the periphery of the operation detecting holes 5 leaves a oozing-out trace. At this time, the oozing out trace can be more clearly confirmed when a colored fire extinguishing liquid is used. The two thermosensible actuating valves may be actuated by the same thermosensible actuating device. Thus, the fire resistant time can be lengthened by an evapotranspiration quantity of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically supplying a fire extinguishing liquid to a heat insulating material or the like in the event of a disaster.

[0002]

2. Description of the Related Art Conventionally, there has been a method of wrapping a heat insulating material around a portion of a pipe or the like that requires heat retention. In that case, the use of a non-combustible heat insulating material could provide a short-time flameproofing effect.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to extend the fire resistance time of a heat insulating material in the event of a disaster such as a fire.

[0004]

Means for Solving the Problems A fire extinguishing solution storage container (1) is installed near a heat insulating material (3), and a heat-sensitive operation valve is provided.
The tube (6) passed through 1 (2) is inserted into a heat insulating material or the like (3).
The fire extinguishing fluid storage container (1) is provided with an air hole (8), which is also provided with a heat-sensitive operating valve-2 (9). An operation detection hole (5) is provided in an outer shell (7) such as a heat insulating material. The present invention is a liquid outflow device configured as described above.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS When a temperature around a heat insulating material or the like (3) rises due to a fire or the like, a heat-sensitive valve-1 (2) and a heat-sensitive valve-
2 (9) is opened, and the liquid in the fire extinguishing liquid storage container (1)
(3) is wetted through the heat treatment. Thereafter, the extinguishing liquid that has leached around the motion detection hole (5) leaves a bleeding mark. At this time, traces of leaching can be more clearly confirmed if a colored fire extinguishing liquid is used. Note that the two heat-sensitive operating valves may be operated by the same heat-sensitive operating device.

[0006]

According to the present invention having the above-described structure, the fire resistance time can be extended not only for the heat insulating material but also for the refractory material, etc., by the amount of heat of evaporation of water. In addition, by closing the air hole (8) of the fire extinguishing liquid storage container (1) until the time of the disaster and having a sealed structure, the fire extinguishing liquid can be reduced in quality due to deterioration and evaporation. Further, the heat insulating material and the like are in a dry state until the time of the disaster, and can be easily implemented and maintain their original performance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

[Explanation of symbols]

1 Fire extinguishing liquid storage container 2 Thermal operation valve -1 3 Insulation material 4 Protected object such as piping 5 Operation detection hole 6 Tube 7 Outer shell of heat insulation material 8 Air hole 9 Thermal operation valve 2

Claims (4)

[Claims] 1. A liquid outflow device for leaching a chemical such as water at the time of temperature rise due to a disaster without using a power source. 2. The liquid outflow device according to claim 1, further comprising a sealed container that opens an air hole during operation. 3. A liquid outflow device according to claim 1, further comprising a method for detecting operation of the device and leaching of the liquid by means of a needle hole provided in an outer wall of a liquid injection destination. 4. The liquid outflow device according to claim 1, wherein the heat insulation material or the refractory material is moistened with water to enhance the fire resistance performance.