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办公室设计中的挡烟垂壁

 

日期:2019年09月23日 来源:本站原创 浏览:

 

   挡烟垂壁是用A级资料制得,经由过程挡烟垂壁做的围堰把烟蕴藏在外面,挡烟垂壁只是一个围堰性子的宰割。用挡烟垂壁四边围起来,用来蕴藏烟。就像地上上四四周起来做成一个泳池,水往低处流用池子蓄水,烟往下面飘用挡烟垂壁围的储烟仓蓄烟。
   设置排烟体系的场合或部位应采取挡烟垂壁、构造梁及隔墙分别防烟分区。防烟分区不该逾越防火分区。
   挡烟垂壁等挡烟宰割设备的深度不该小于本尺度4.6.2条划定的储烟仓厚度。对有吊顶的空间,当吊顶开孔不平均或开孔率小于或即是25%时,吊顶内空间高度不得计入储烟仓厚度。
   当采取天然排烟方法时,储烟仓的厚度不该小于空间净高的20%,且不该小于500mm;当采取机器排烟方法时,不该小于空间净高的10%,且不该小于500mm。同时储烟仓底部距地上的高度应大于保险分散所需的最小清楚高度,最小清楚高度应按本尺度第4.6.9条的划定盘算。
   走道、室内空间净高不大于3m的地区,其最小清楚高度不宜小于其净高的1/2.
 
The smoke retaining wall is made of Class A materials. The smoke is stored inside the cofferdam made of smoke retaining walls. The smoke blocking wall is only a cofferdam division. Cover the walls with smoke barriers to store smoke. Just like the ground is surrounded by a swimming pool, the water flows to the lower part of the pool to store water, and the smoke floats on top of it to store smoke in a storage tank surrounded by smoke walls.
The location or part of the smoke discharge system should be divided into smoke prevention zones by using smoke retaining vertical walls, structural beams and partition walls. The smoke prevention zone should not cross the fire prevention zone.
The depth of the smoke retaining partition facility, such as smoke retaining wall, shall not be less than the thickness of the tobacco storage tank specified in 4.6.2 of this standard. For space with a ceiling, when the opening hole of the ceiling is not uniform or the opening rate is less than or equal to 25 %, the height of the space in the ceiling shall not be included in the thickness of the storage stack.
When natural smoke exhaust method is used, the thickness of the tobacco storage should not be less than 20 % of the net height of the space, and should not be less than 500MM; When using a mechanical smoke discharge method, it should not be less than 10 % of the net height of the space, and it should not be less than 500MM. At the same time, the height of the bottom of the storage tank from the ground shall be greater than the minimum clear height required for safe evacuation, and the minimum clear height shall be calculated in accordance with the provisions of Article 4.6.9 of this Standard.
Where the net height of the walkway and indoor space is not more than 3M, its minimum clear height should not be less than 1/2 of its net height.

 



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