【 Weak current College 】 special fire shutter function and application

Fire is a symbol of human civilization, but the fire also pose a threat to the survival of humanity, that is a fire. The history of mankind, and continued writing and conflagration the history of the fight. In today's era of ever-changing science and technology, fire technology is an innovative, forward, but on the whole, fire technology is toward the rapid development of the two directions, one is to eliminate the fire, the fire; the second is the fire quickly control within a certain range, at one time, do not let the fire spread, the fire resistance. In some vulnerable to fire places, such as distribution, gas stations, and other places, people take the installation of fire doors, fire shutter, fire-resistant components to achieve the purpose of preventing the spread of fire.

But in some special places, such as aircraft libraries, large garage, Depot, supermarkets, etc., in order to meet the requirements of their function, the span of a door, fireproof door and ordinary steel fire shutter is very difficult to achieve such specifications, while the lateral steel fire shutter with span, fire-resistant insulation performance, etc., and therefore in these establishments to be widely applied.

Lateral steel fire shutter's span, mainly by its special structure. Ordinary steel fire shutter operates as vertical hoisting, scrolls and curtain panels are level, when a door span is too large, heavy curtain weight Board, roller shutter opens needs a large starting torque, scrolls bend even rupture easily; in the shutter is closed, the dead weight of overweight will decrease too fast even motor brake failure caused the accident. And lateral steel fire shutter operation mode to landscape level-off, when the door span increases, just increase the number of blind, curtain sheet and reel length is unchanged, the lateral steel fire shutter have two scrolls, a root for the drive shaft, another for the secondary axis, the drive shaft is fitted with wheels, while the secondary allocation of axis is equipped with a tray and close the shutter is by driving axis dial when you toggle wheel curtain panels at both ends of the chain axis. Blind plate, top with rolling shutter operation is connected with the curtain of rolling bearings in standard arrangement within the scroll on the Rails. On the rail generally used channel steel and angle steel welding, install the shutter, the first building on the ceiling beams or appropriate location to play good expansion bolts and multiple pieces of a certain length of steel angle seated in the expansion bolts on the rails on the fine level of pre-existing fastening angle welding, each fixed angle steel expansion bolt quantity of not less than 3 only, each paragraph spacing is larger than 600mm to guarantee on Rails has sufficient strength to withstand the weight of the curtain panels. As a result of lateral steel fire shutter often installed in the luxurious decoration, if you set the following guide you must dig a trench on the floor, but the customer does not wish to undermine floor General, and floor gouges, prone to mixed wrestling, accidental injury accidents, and once in peacetime people inadvertently dropped into the debris in the notch, etc occurs when the shutter closes impede and even unable to close, lateral steel fire shutter generally do not set the Guide. Lateral steel fire shutter as a level run, when the door span a large, you can increase accessible door intermediate drive unit for grade transmission. Because the lateral steel fire shutter operation by rolling in on the rails of the scrolling, which scrolls the friction coefficient is very small, so the same weight of lateral steel fire shutter runs the required motor power than ordinary steel fire shutter small and lateral steel fire shutter can easily implement multilevel transmission, lateral steel fire shutter can do dozens of meters or even hundreds of metres span, for ordinary steel fire shutter is simply unimaginable.

Lateral steel fire curtain of fire performance and ordinary steel fire shutter, composite shutter lateral steel fire fire resistance rating F3 and F4 is generally divided into, F3, F4 for 2.5h, fire resistance time 3.0h. Lateral steel fire shutter adopts intelligent control system, according to the lateral steel fire shutter installation debugging settings, when a fire occurs shutter movement is slightly different, generally, when the temperature or the smoke detectors to detect a signal is sent immediately after the fire alarm signal to the controller, the controller issued an alert sound, and start the motor makes the shutter closes to shutter installation time preset location, delay in stopping any escape (escape time is the shutter shore installed pre-set, usually 0-999s), time delay after the shutter is fully closed. If at this point in the scene of the fire is still not evacuees, as long as you press the manual control box of rolling shutter any key press, will reopen to stop position after the end of the delay once again completely closed. This process can be repeated. There are conditions where lateral steel fire shutter controller and associated fire command center, fire command center can remotely control the shutter for the action process. Lateral steel fire shutter due to their structure, constraints, it is very difficult to achieve manually opening and closing functions, this is the lateral steel fire shutter's biggest weaknesses. Therefore, install the lateral steel fire shutter time must connect reliable private fire power, and regularly check the shutter performance conditions to ensure that once a fire lateral steel fire shutter function properly, resulting in immediate isolation fire area, effectively prevented the fire from spreading.

Domestic current lateral steel fire shutter is making ordinary steel fire shutter technology basis, through the introduction of personnel and equipment, in the design of structure, innovative, and guarantee that products should have good fire resistance, and guarantees that the products look pretty, reasonable production technology. Production technology of each link by formulating process specification, each process has strict examination according to the design requirements. Lateral steel fire shutter of quality to a great extent depends on site installation, therefore, manufacturers should training a professional installation team.

Lateral steel fire shutter, because of its large span of prominent advantages in some special places almost irreplaceable, but in some advanced hotels, banks, shopping malls, and other high-rise buildings Conference Hall, the evacuation of the aisle, requires both good fire-resistant and fire prevention measures, and also beautiful and save space, inorganic fiber special fire shutter on top.

Inorganic fiber special fire shutter is used for inorganic fiber cloth curtain surface to replace steel fire shutter curtains of steel plates, inorganic fiber cloth thickness ratioQuality curtain panels are much thinner and density is very small, so the same area of inorganic fiber special fire shutter of volume is the same area of steel fire shutter 1/2, while the weight is only the same area of steel fire shutter as th…, however, inorganic fiber special fire shutter but with excellent heat insulation properties of fire-resistant, inorganic fiber special fire curtain of fire resistance for 4h and fire resistance time its dorsal surface average temperature rise below the fire 140 ℃. Inorganic fiber special fire shutter of structural type, installation and control system and ordinary steel fire shutter are basically the same, but because of the inorganic fiber special fire shutter weight is light, it can produce than ordinary steel fire shutter span much of the shutter, and installation footprint small, curtain side there are decorative cloth surface so that the inorganic fiber special fire shutter looks more beautiful, decorative cloth color according to user preferences and harmony with the surrounding environment and matched, so the inorganic fiber special fire shutter especially suitable for indoor installation of tall buildings. Inorganic fiber special fire shutter curtains surface is made of inorganic fiber cloth, compared supple texture, not as hard as steel curtain panels can withstand great pressure, but inorganic fiber special fire shutter curtain making time to surface layout more wind hooks, when the fire broke out resulting negative pressure when the curtain on the layout of the wind on both sides of the Rails hook hook bending without curtain surface from rail occurrence in extrusion blow fire. With the development of the times, people on fire curtain of fire-resistant, heat insulation performance increasingly demanding, space utilization, product appearance and high-rise building facilities of weight is getting higher and higher, therefore, light-weight high-performance inorganic fiber special fire shutter will become future fire shutter the mainstream of development.