Henan fire door: where are fire rolling shutter doors generally installed?

Henan fireproof door: in addition to the fireproof rolling shutter door set in the firewall, the fireproof rolling shutter shall also be set if there is no firewall between the two fire compartments. It is generally located in the following parts:

(1) Close the evacuation staircase to the walkway; Enclose the elevator hall, the door leading to the front room and the front room leading to the walkway.      

(2) Divide the fire compartment and control the fire wall and the door on the fire partition in the building area of the compartment. When it is difficult to set firewall or fire door in the building, fire rolling shutter door shall be used instead, and water curtain shall be used for protection.      

(3) Henan fire door code (such as GB50045-95 Code for Fire Protection Design of High rise Civil Buildings) or partition door with special requirements for fire and smoke prevention. For example, the partition doors of equipment rooms (cylinder rooms, foam stations, etc.) attached with fixed fire extinguishing devices in high-rise civil buildings, ventilation, air conditioning rooms, etc. should be Class A fireproof doors; The door on the partition wall of the basement room where people often stay or there are many combustibles shall be Class A fireproof door; Due to limited conditions, it is necessary to arrange oil fired and gas-fired boilers, oil immersed power transformers, high voltage capacitors and switches filled with oil, etc. in high-rise buildings. The doors on the partition walls of special rooms should be Class A fireproof doors. There are also household doors with special requirements for fire protection, such as fire control command center, archives room, valuables warehouse, etc. Henan fire doors are usually Class A or Class B fire doors.

Henan fireproof doors are mainly used in large supermarkets (hypermarkets), large malls, large professional material markets, large exhibition halls, workshops, warehouses and other public places with fire protection requirements. When a fire alarm occurs, the fire rolling shutter door will automatically lower (lower) under the control of the central fire control system according to the preset procedure, so as to prevent the flame from spreading to other areas and gain valuable time for fire fighting.

Under normal circumstances, Henan fire door large buildings are equipped with a central fire control system according to the provisions of the Fire Law. When a fire occurs, the smoke sensor (referred to as smoke sensor) installed on the roof first receives the smoke signal, and at the same time alarms to the central control system. The central fire control system connects the power supply of the fire shutter door in the fire alarm area after identification, so that the fire shutter in the fire area moves down at a certain speed. When the roller shutter descends to a position about 1.5m above the ground, stop the descent to facilitate the evacuation of people. After staying in the middle for a certain time, the fire rolling shutter door will continue to descend until it is closed. The downward speed and intermediate dwell time of the fireproof rolling shutter door can be adjusted during installation.

In some occasions, the building is not equipped with a central fire control system, and the fire rolling shutter door only uses the fire control electrical box of the fire rolling shutter door to realize the fire control specified operation procedure of the fire rolling shutter door. In this case, when a fire alarm occurs, the fire alarm signal received by the smoke sensor is directly transmitted to the fire control electrical cabinet of the fire shutter door.