| 摘要 |
PROBLEM TO BE SOLVED: To rapidly fire extinguish a combustor by using an automatic fire extinguishing device corresponding to an abnormal heating in a frame of the combustor. SOLUTION: A smaller-diameter cylindrical unit 2a than an upper part is formed at a lower part of a seismic sensing weight 2 installed on a base 1. A tapered part 2c is provided at a lower surface of the unit 2a. An operating shaft 3 is extended down from an end face of the tapered part 2c and is engaged with a starting member 4 of the fire extinguishing device through a small hole 3a of the base 1. The weight 2 is installed on the base 1 by a lower end of the unit 2b constituted of a thermoplastic synthetic resin mounted at an outside of the unit 2a including the tapered part 2c. In this case, when a frame of the combustor becomes an abnormally high temperature, the unit 2b for supporting the weight 2 is deformed. The weight 2 loses its balance by the part 2c of the unit 2a contacted with the base 2 and is tilted down. Thus, the automatic fire extinguishing device 5 is operated to extinguish the combustor.
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