Fire-proof shutter is to rely on mechanical action to complete its fire-proof separation function, and mechanical equipment has a certain failure rate, if the user is not well handled, not timely repair and other reasons, fire attack may have a single failure, and its hole size is very large, so its safety reliability is not high wall and fire door. Therefore, the fire protection standard has clear and detailed restrictions on its application site: the opening on the closed floor, the door hole in the special front room of the fire elevator, the connection between the atrium corridor and other areas, and the use of firewalls to distinguish the fire prevention zone. Project planning should strictly abide by these rules, can not arbitrarily expand the scope of use, firmly can not use fire curtain to "replace" firewall or partition wall.
The fire-proof shutter door adopts the two-step bottom control method, and the alarm and action signals should be sent to the fire control room respectively. When the smoke detector in front of the fast fire prevention shutter door announces the signal, the automatic alarm panel on the fire control room operating table should declare the acousto-optic signal, automatically record the fire time, flash the fire position, and receive the action signal. Fast fire-proof shutter door in place indicates that after rolling the shutter door motor, the deceleration gear drives the limiter gear to roll the wire rod, the collision block moves along the wire rod axially, touches the fretting switch located in the corresponding position, and connects the signal power supply of the middle and bottom position of the shutter door. Assuming that the automatic alarm position lamp on the operating table is on, and the corresponding shutter door indicator lamp is not on, the electronic control or automatic control of the shutter door has some shortcomings.
At this point, the shutter door control button located on the console should be enabled immediately to operate it down to the median or bottom position. Assuming that the shutter door can not be lowered after the operation, it should be sent to the site to check the shortcomings. It can be seen that the control of the shutter door of the fire control room should be lowered to the middle, bottom and rising control buttons, and should be equipped with a flash of the middle and bottom position indicator lights. Appearance check door rail, door has deformation, blocking appearance, manual button is not excellent lock.