浅析铁皮风管的防火包裹事项！

发布人：http://www.sftfgd.com   发布时间：2023-05-08 13:56:17

铁皮风管顾名思义就是采用镀锌铁皮（板）制作的风管，特点是经久耐用，韧性比以上两种好，抗震和抗碰撞性能好，一般情况下不会破碎。下面济南铁皮风管加工厂家来将讲过铁皮风管的防火包裹事项。

Iron sheet air duct, as the name suggests, is made of galvanized iron sheet (plate), characterized by durability, better toughness than the above two, good seismic and collision resistance, and generally not broken. Below, the Jinan iron sheet air duct processing manufacturer will discuss the fire protection packaging of iron sheet air ducts.

强制要求进行防火包裹的影响：应该是放弃铁皮风管，这是因为造价过高，本来铁皮风管就造价高，如果要另加防火包裹则成本会更高，从经济角度来说无存在的意义。

The impact of mandatory requirement for fire-resistant packaging: It should be to abandon the iron sheet air duct because the cost is too high. The iron sheet air duct is already expensive, but if additional fire-resistant packaging is needed, the cost will be higher, which is meaningless from an economic perspective.

其实是工艺复杂，重复，铁皮风管进行防火包裹实际是铁皮风管外增加了一路非金属风管，甚超过两路风管的造价和制作工时。再就是占用空间，影响综合布管，尤其影响地下车库标高。

In fact, the process is complex and repetitive. The fireproof wrapping of the iron sheet air duct actually adds a non-metallic air duct outside the iron sheet air duct, even exceeding the cost and production time of two air ducts. Another issue is the occupation of space, which affects the comprehensive layout of pipes, especially the elevation of underground garages.

当然进行防火包裹也影响美观、耐用性、防潮性能以及增加维护量等，这些本就是非金属防排烟风管的缺点。

Of course, fireproof packaging also affects aesthetics, durability, moisture resistance, and increased maintenance, which are the drawbacks of non-metallic smoke exhaust ducts.

铁皮风管的防火包裹适应场所：

The fireproof packaging of iron sheet air ducts is suitable for the following locations:

当然，在足够条件下，消防设施的级别是越高越好，但这样违反了设计的理念，也就是违反了项目设计中的成本控制。所以在满足功能的前题下做到经济实用才是设置消防设施的思想。在考虑一定用金属材料制作风管的前题下：

Of course, under sufficient conditions, the higher the level of fire protection facilities, the better, but this violates the design philosophy and cost control in project design. So the central idea of setting up fire protection facilities is to achieve economy and practicality while meeting the premise of functionality. Under the premise of considering using metal materials to make air ducts:

a，人员密集型场所。

a. A densely populated area.

b,石油化工及防尘防爆场所。

b. Petrochemical and dustproof and explosion-proof locations.

c，有可燃、易燃物的隐蔽场所。

c. Concealed places with flammable and combustible materials.

d，高层建筑避难层、设备层。

d. Refuge floor and Mechanical floor of high-rise buildings.

e，业主或采购单位自身的要求。

e. The requirements of the owner or procurement unit themselves.

2，做法

2. Practice

因为是新要求，根据目前市场上的案例技术工艺有待商榷，当然也是个人认为防火包裹质量的不足之处。安装厂家为节约成本，由风管安装工人进行包裹超出了其技术范畴，所以要做到美观耐用应进行工艺结构设计，再就是工人培训或聘请装饰装修工人。

Because it is a new requirement, the technical process needs to be discussed based on the current market cases, and of course, it is also a personal deficiency in the quality of fireproof packaging. The installation manufacturer, in order to save costs, requires air duct installation workers to package beyond their technical scope. Therefore, to achieve aesthetics and durability, the first step is to design the process structure, and then train workers or hire decoration workers.

防火包裹是为了包裹金属板，这里又采用了金属角线固定防火板。固定点距离过大使得防火板面出现波浪变形，这种变形会随着使用年限越久越大。还有拼接缝如何处理也是关键。

Fire resistant wrapping is used to wrap metal plates, and metal corner wires are used to fix the fire resistant plate. Excessive distance from the fixed point can cause wave deformation on the fireproof board surface, which will increase with service life. And how to handle the seams is also crucial.

严格说来，风管采用金属吊杆或角钢支撑和固定按规范要求来说也达不到所理解的耐火极限的要求，是否也需要进行防火处理。这样一来，所有的消防设施也就要进行防火考虑了。比如消防管道的支架，同处防排烟防护区内，要不要进行防火处理，而且这不仅影响功能还会影响。

Strictly speaking, the use of metal suspension rods or angle steel support and fixation for air ducts does not meet the understood fire resistance limit requirements according to the specifications. Is fire prevention treatment also necessary. In this way, all fire protection facilities also need to be considered for fire prevention. For example, if the support of the fire pipeline is located in the same smoke prevention and exhaust protection zone, should fire prevention treatment be carried out? This not only affects its function but also affects safety.

所以针对实际情况，规范要求是防排烟极限应该是运行时间，而不是用火烧的时间。从着火初期到灭火或到失去功能作用的时间。而防排烟系统的极间仅在温度达到280度的时间。这期间可能很短也可以很长。这就要取决于我们的灭火设施保证的时间了。

So based on the actual situation, the standard requirement is that the smoke control limit should be the operating time, not the time spent on fire. The time from the initial stage of fire to extinguishing or losing its function. The limit time of the smoke exhaust system is only when the temperature reaches 280 degrees Celsius. This period may be short or long. This depends on the time guaranteed by our fire extinguishing facilities.

而这时候恰恰就是金属和非金属风管的选择了，非金属风管在水灭火时、消防救援时其防水性和机械破坏性都没金属风管好。会造成坠落、破损等危害。更多相关内容就来我们这里http://www.sftfgd.com咨询了解吧！

And at this point, it is precisely the choice of metal and non-metallic air ducts, which are not as waterproof and mechanically destructive as metal air ducts in water firefighting and fire rescue. It can cause hazards such as falling and damage. Come to us for more relevant content http://www.sftfgd.com Consult and understand!