Fire ventilation equipment mainly refers to when there is a fire in the room, there will be a lot of smoke, it is the effect is to discharge the smoke indoors. Fire smoke exhaust fan has a smoke exhaust valve, exhaust valve at ordinary times you are closed, open automatically when the fire broke out, it is with the alarm host connected, open is the condition of fire automatic alarm system, fire alarm host in the automatic state, fire smoke exhaust valve automatically opens, linkage fire smoke exhaust fan.
The higher the building is, the worse it is. What happens after a fire? Shenzhen xicheng plastic co., LTD. Thinks this is positive. Therefore, we should do well in the anti-smoking measures of the building. With the development of society, more and more complex and diverse high-rise residential buildings have been built in various parts of the country. Because of the complex functions of such buildings, there are more fire factors and more ways of spreading. Harm is big. The evacuation is difficult and it is easy to cause significant losses. Therefore, the design of high - level civil buildings is particularly serious, and the anti-smoke design is part of the manmeng part of high - level civil building fire protection design. It plays a vital role in evacuation and fire fighting. It is also the main content of fire fighting professional review, so we believe that this aspect should arouse the attention of all aspects. Therefore, we need to pay attention to the following points in the installation of smoke exhaust machine:
1, the smoke exhaust fan at the ends of the flexible soft must as a-class non-combustible material, packing material must be as a-class non-combustible material (fire according to the function is divided into: canvas anti-corrosion type, radiation type, clean air type, resistance to high pressure incombustible type four; According to the thickness: no steel wire 1.1mm, 1.3mm single surface coating with steel wire, 1.6mm steel wire and 3 kinds of glue. The specification is 1 by 50, 1.2 by 50 and 1.25 by 50.
2. The exhaust fan and duct adopt the hose (flexible material and not burning), the length should not be less than 200mm, the diameter of the pipe is the same as the inlet and inlet of the fan. In order to ensure that the hose does not distort deformation during the operation of the system, it should be installed in a moderate degree. For the canvas hose installed in the suction side of the fan, it can be installed a bit tighter to prevent the fan from being inhaled and reduce the section size of the canvas hose.
3, civil before pouring concrete, with professional design drawing review the location of the foundation, based on the surface of the top elevation, the basis of geometry size, the reserved bolt holes, location and depth of the top of the base level should not be a positive error (i.e., unfavorable and bring up the design elevation).
4. The pipe diameter of the fan outlet can only be larger and not smaller, and the final outlet should be installed with the anti-worm net, and the wind and rain cap should be added to the wind.
Usually smoke of high-rise civil buildings facilities mainly includes the smoke prevention stair well and room, before the fire elevator room, share before the room, stair, closed, refuge floor (between) and other places set up smoke prevention facilities, basement, walk inside, the atrium, with no Windows or with fixed window set who smoke in areas such as the room facilities, smoke smoke hanging wall between partitions, etc. Smoke control facilities are essential to protect the safety of people's life and property of tall buildings fire safety facilities, but as part of the design, construction personnel to smoke facility structure, function and performance of the lack of understanding, to the national standard understand thoroughly, often lead to some problems in the design and construction.