| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a fire fighting installation in which a water discharge time required from an opening operation to water discharge start of a sprinkler head can be confirmed when a pressurized gas is filled in the secondary side piping of a flowing water detection device.SOLUTION: A dry type pre-operated fire fighting installation releases and operates a pre-operating valve gear 24 on the basis of the decompression by the operation of a closed type sprinkler head 26 connected to the secondary side piping filled with a pressurized gas, and supplies a pressurized fire-fighting water by a fire pump 10 to the operated sprinkler head 26 and discharges the water. A time measuring part provided in a pre-operated valve control panel 34 performs the same test water discharge as one sprinkler head operated by the opening control of a motor-operated valve 28 for end test, and starts time measurement by the decompression detection of a decompression detector 44. Then, the time measurement is completed by the flowing water detection of a flowing water detector 46, and the water discharge required time equivalent to the time from the operation of the sprinkler head 26 via the ejection of the pressurized gas to the start of the water discharge of the pressurized fire-fighting water is measured, and thereby the measured water discharge required time is output by print and/or display.</p> |
