Method and apparatus for fire extinction in draft path
专利汇可以提供Method and apparatus for fire extinction in draft path专利检索，专利查询，专利分析的服务。并且PURPOSE: To extinguish fire in its early stage at the upstream side by providing a plurality of fire sensor and fire extinguishing agent dischargers at intervals in the draft direction in a draft path to discharge said agent to the upstream side of the fire sensor which detects first a fire.
CONSTITUTION: Combustibles 36 deposited on a fire generating spot 35 in an exhaust duct 1 are fired to generate a fire 37 which heats a draft flowing in the duct 1 and flows down to make contact with the upper inner portion of the duct in a fire detecting spot 38 and operate a fire sensor 5. When the fire sensor 5 outputs a fire signal, a fire signal detecting circuit 704 on a discharge division control board 7 generates the output and OR circuits 711-714 generate the outputs. Switch valve controlling circuits 721-724 are operated and water dischargers 10-13 are interlocked therewith in a fire region 40 at the upstream side of said sensor 5 to open respective switch valves 20-23, operate also a pump driving circuit 741 and drive a pump 33. Water is discharged all at once from discharge nozzles 15-18 so that the whole fire region 40 at the upstream side undergoes water sprinkling and fire extinction.
COPYRIGHT: (C)1990,JPO&Japio，下面是Method and apparatus for fire extinction in draft path专利的具体信息内容。
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