| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent wrong blowoff of carbon dioxide by controlling the situation of a person being in and out of the objected room to be protected by a carbon dioxide fire extinguisher facility and to more secure the safety of the carbon dioxide fire extinguishing facility. SOLUTION: An entrance control panel 8 is installed in the vicinity of the doors 3, 4 of a room 2 to be protected by a carbon dioxide fire extinguishing facility. The entrance controlling panel 8 is provided with a display lamp representing 'out of the room' and 'in the room (prohibited carbon dioxide blowoff)' respectively, an entrance time representing timer display, an entrance time setting switch and a transfer switch of 'out of the room' and 'in the room'. One operates the transfer switch on the entering and the leaving the room, to make a lamp for 'the out of the room' or 'in the room' light, thereby the entering and the leaving the room are controlled. And also the signal circuit for display lamp for being in or out of the room and the carbon dioxide blowoff actuation circuit are interlocked together to make blowoff of carbon dioxide to be prohibited during a person is in the room, and further a system composing setting the time for entrance on the entering, after the lapse of the setting time, automatically switched to 'out of the room' mode and to inform by a sound alarm can be possible.</p> |
