防排烟风管，是建筑物根据设计规范要求而设置的穿越，或位于火灾危险区的机械加压送风防烟系统的风道，和跨过防火分区机械.排烟系统风道的统称。
Smoke control air duct is the general name of the air duct of the mechanical pressurized air supply and smoke control system that passes through the building according to the requirements of the design code, or is located in the fire hazard area, and the air duct of the mechanical and smoke exhaust system that crosses the fire compartment.
灾死亡的原因分析，结构破坏致死的比例是5%，直接被火烧死的比例是20%，有毒烟气致死的比例高达75%。而防排烟管道的作用为人员提供了时间和条件。这也对防排烟管道的性能要求高：一、结构，保持完整性，防止蹿火，二、不燃隔热，避免燃烧和引燃，助燃。
Analysis of the causes of death caused by the disaster shows that the proportion of death caused by structural damage is 5%, the proportion of death caused by direct fire is 20%, and the proportion of death caused by toxic smoke is as high as 75%. The role of smoke control pipes provides time and conditions for personnel safety. This also requires high performance of smoke control and exhaust pipes: first, the structure is safe, the integrity is maintained, and the fire jump is prevented; second, incombustible heat insulation, combustion and ignition are avoided, and combustion is supported.
作为拥有多年建筑材料研发、生产经验的工厂来说，根据标准研发了防排烟系统解决方案。它是由镀锌板+岩棉（50mm）+防火板组成的。耐火极限中9mm的防火板可以达到120min，12mm防火板可以达到180min。
As a factory with many years of research and development and production experience in building energy-saving materials, it has developed smoke control system solutions according to national standards. It is composed of galvanized sheet+rock wool (50mm)+fireproof sheet. In the fire resistance limit, 9mm fireproof board can reach 120min, and 12mm fireproof board can reach 180min.
1、消防排烟风管对于比较复杂的民用建筑，在设计阶段，各工种先应协商好空间分隔，定出每种管道的标高范围。一般情况下不得越出给自己规定的界限。遇有个别管段要越界时应与通风管道其他工程协商。
1. For the more complex civil buildings, the space separation of each type of work shall be negotiated and the elevation range of each type of pipe shall be determined at the design stage. Generally, you should not go beyond the limits set for yourself. In case of crossing boundary of individual pipe section, it shall be negotiated with other works of ventilation pipeline.
2、解决各种消防排烟风管相碰及协调的原则，一般为：“小管让大管，有压让无压”。例如，自来水管与风管相撞，则应当自来水管拐弯。冷、热水管与下水管相碰，则应改变冷、热水管道。
2. The principle to solve the collision and coordination of various fire smoke exhaust air ducts is generally: "small pipes give way to large pipes, and pressure gives way to no pressure". For example, if the water pipe collides with the air pipe, the water pipe should turn. If the cold and hot water pipes collide with the downpipe, the cold and hot water pipes should be changed.
3、消防排烟风管施工前应设备总管的工程师，将各工种的管线，单线画在一张平面图上。每种管道用一种彩色笔。在各交点处综合其标高，看是否有矛盾之处，及时发现，将问题解决在安装之前。
3. Before the construction of the fire and smoke exhaust air duct, the engineer of the main equipment pipe shall draw the pipelines and single lines of each type of work on a plan. Use a color pen for each type of pipe. The elevation of each intersection shall be integrated to see if there is any contradiction, and the problem shall be solved before installation.
4、为了减少投资，节省空间，降低层高，有些敷设无坡度要求的消防排烟风管，可以穿梁敷设(如自来水管道，消防喷洒干管等)。
4. In order to reduce investment, save space and reduce floor height, some fire smoke exhaust ducts without slope requirements can be laid through beams (such as water pipes, fire spray main pipes, etc.).
With the summary of Jinan ventilation pipe processing, I hope it can help our customers. If you have any questions or need help, please click our website: http://www.jnqsg.com Or call for consultation, and we will do our best to solve it for you
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