| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire extinction system which can correspond to a plurality of different feed water amount required for an appliance group for fire extinction provided every floor of a feed water pipe upon fire disaster.SOLUTION: A fire extinction system includes: a plurality of target pressure (total pump head) presetting means which preset target pressure (total pump head) every floor determined by respectively adding a plurality of different water feed amount required for an appliance group for fire extinction provided every floor of the water feed pipe, a piping resistance determined by the necessary water feed amount, real pump head and a terminal pressure required on the appliance for fire extinction; and a starting instruction signal emission means which is emitted from the appliance group for fire extinction. Therein, the target pressure (total pump head) every floor is selected and preset based on the signal of the signal emission means and a frequency instruction signal is outputted to an inverter and the frequency of the pump is controlled such that water feed pressure detected by the pressure detection means becomes to the selected target pressure (total pump head). |
