Smoke Curtains are divided into two categories: 1, fixed smoke shield curtain;2,electric flexible smoke curtain. Fixed smoke shield curtain is the most commonly and widely used. As far as its material, it can be made of glass, steel, and also smoke blocking cloth, steel plate, Fire wooden plate, etc.
The fixed smoke shield curtain of Zhongwo Company is a device of smoke control system for isolating smoke areas in underground and other large spaces of civil air defense works and high-rise civil buildings. It can separate smoke areas from other spaces in Fire accident, thus creating the environment and buying time for the rescue and evacuation of personnel in the Fire area.
The application of the smoke curtain can reduce the inhalation of harmful gases such as carbon monoxide and carbon dioxide in the trapped persons in the event of a fire, thereby reducing personnel casualties and property losses.
The smoke curtain is a new type of smoke device developed according to the current national fire protection product specification and fire protection design specification and with reference to similar domestic and foreign product standards. It is mainly used in the smoke separation of large spaces and walkways for industrial and civil buildings, and hinders high temperatures. The toxic smoke flows horizontally along the ceiling, reducing the loss of fire and carbon dioxide, carbon monoxide, and other toxic and hot gases that cause damage to people’s lives and property and the spread of fire.
Structure and working principle of smoke curtain:
1. The smoke curtain box is made of high-quality steel plate, and the curtain surface is made of single-piece fireproof glass;
2. Hidden in the ceiling before the vertical wall declines, and the height of the suspended ceiling or ceiling is 500mm after the fall, forming a 500m smoke partition (civil building and human defense engineering) and a 2000m smoke partition (car garage);
3. In the automatic state, the smoke wall can receive the linkage signal linkage of the fire automatic alarm system for forced landing or manually controlled landing.
Main technical parameters of smoke curtain
1, the environmental conditions: temperature -10 °C ~ 40 °C humidity ≤ 85%;
2, the motor power 0.60 ~ 2.5KW, the main power AC380V, 50Hz; control power DC12 ~ 24V;
3, fire-resistant grade F4 (refractory limit ≥ 4 hours);
4. The average speed of opening and closing is proportional to the height of the hole (2~10) m/min.
5, Installation: wall inside or wall side installation.