网址：www.fengguanjiagong.com 2021-04-28 作者：admin 阅读：
Natural smoke exhaust facilities do not have the function of smoke exhaust
Louver type natural smoke exhaust window
1. The setting position of natural smoke exhaust window is improper. Considering the effect of natural smoke exhaust, the smoke exhaust windows should be set as close as possible to the upper part of the wall. At present, a considerable number of natural smoke exhaust windows are not set at the upper part of the wall, but at the lower part. The distance from the roof and ceiling is large, which is not conducive to natural smoke exhaust.
2. The opening area of the natural smoke exhaust window can not meet the requirements of the specification. The national standard "code for fire protection design of high rise civil buildings" has clear provisions on the area of windows where natural smoke exhaust is used. However, due to the fact that some designers have not carefully calculated the area of fixed windows in accordance with the requirements of the code, or the area of fixed windows is calculated within the area of smoke exhaust windows, the area of smoke exhaust windows in some projects can not meet the requirements of the code, which directly affects the smoke exhaust effect.
3. The structure of natural smoke exhaust window is unreasonable. Some of the smoke exhaust windows are made into non openable fixed windows, some of the upper part of the window is made into fixed windows, and the openable smoke exhaust windows are set in the lower part of the window, which seriously affects the smoke exhaust function.
4. The smoke exhaust window with high installation height is lack of easy to open operating mechanism. According to the requirements of the specification, the smoke exhaust windows should have devices that are easy to open, but some smoke exhaust windows with high installation height and difficult to open are not equipped with opening devices, which is unfavorable for the opening of smoke exhaust windows in case of fire.