| 摘要 |
PROBLEM TO BE SOLVED: To provide sprinkler fire-extinguishing equipment in which flood damage is not caused though a closed type head is broken by mechanical and external force, etc., and fire extinguishment is prevented from being delayed even when a fire breaks out. SOLUTION: The sprinkler fire-extinguishing equipment is provided with: the closed type head 7 which is fitted to the side of the end of a water feeding pipe 5 and provided with a cover 8 which falls by a fire to output an operation signal; an release valve 3 provided on the side of the proximal end of the water feeding pipe and which is closed normally; a pressure detection means 11 provided on the downstream side of the release valve 3 to output a first pressure signal on the basis of water-filling pressure within the water feeding pipe 5; and a controller 15 which performs the first control for opening the release valve 3 on the basis of inputting of the operation signal and the second control for closing the release valve 3 on the basis of inputting of the first pressure signal after the first control. COPYRIGHT: (C)2003,JPO
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