淺析鐵皮風管的防火包裹事項！

發布人：http://www.bnlfans.net   發布時間：2023-05-08 13:56:17

鐵皮風管顧名思義就是采用鍍鋅鐵皮（板）制作的風管，特點是經久耐用，韌性比以上兩種好，抗震和抗碰撞性能好，一般情況下不會破碎。下面濟南鐵皮風管加工廠家來將講過鐵皮風管的防火包裹事項。

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.

強制要求進行防火包裹的影響：應該是放棄鐵皮風管，這是因為造價過高，本來鐵皮風管就造價高，如果要另加防火包裹則成本會更高，從經濟角度來說無存在的意義。

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.

其實是工藝復雜，重復，鐵皮風管進行防火包裹實際是鐵皮風管外增加了一路非金屬風管，甚超過兩路風管的造價和制作工時。再就是占用空間，影響綜合布管，尤其影響地下車庫標高。

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.

當然進行防火包裹也影響美觀、耐用性、防潮性能以及增加維護量等，這些本就是非金屬防排煙風管的缺點。

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

鐵皮風管的防火包裹適應場所：

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

當然，在足夠條件下，消防設施的級別是越高越好，但這樣違反了設計的理念，也就是違反了項目設計中的成本控制。所以在滿足功能的前題下做到經濟實用才是設置消防設施的思想。在考慮一定用金屬材料制作風管的前題下：

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，人員密集型場所。

a. A densely populated area.

b,石油化工及防塵防爆場所。

b. Petrochemical and dustproof and explosion-proof locations.

c，有可燃、易燃物的隱蔽場所。

c. Concealed places with flammable and combustible materials.

d，高層建筑避難層、設備層。

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

e，業主或采購單位自身的要求。

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

2，做法

2. Practice

因為是新要求，根據目前市場上的案例技術工藝有待商榷，當然也是個人認為防火包裹質量的不足之處。安裝廠家為節約成本，由風管安裝工人進行包裹超出了其技術范疇，所以要做到美觀耐用應進行工藝結構設計，再就是工人培訓或聘請裝飾裝修工人。

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.

防火包裹是為了包裹金屬板，這里又采用了金屬角線固定防火板。固定點距離過大使得防火板面出現波浪變形，這種變形會隨著使用年限越久越大。還有拼接縫如何處理也是關鍵。

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.

嚴格說來，風管采用金屬吊桿或角鋼支撐和固定按規范要求來說也達不到所理解的耐火極限的要求，是否也需要進行防火處理。這樣一來，所有的消防設施也就要進行防火考慮了。比如消防管道的支架，同處防排煙防護區內，要不要進行防火處理，而且這不僅影響功能還會影響。

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.

所以針對實際情況，規范要求是防排煙極限應該是運行時間，而不是用火燒的時間。從著火初期到滅火或到失去功能作用的時間。而防排煙系統的極間僅在溫度達到280度的時間。這期間可能很短也可以很長。這就要取決于我們的滅火設施保證的時間了。

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.

而這時候恰恰就是金屬和非金屬風管的選擇了，非金屬風管在水滅火時、消防救援時其防水性和機械破壞性都沒金屬風管好。會造成墜落、破損等危害。更多相關內容就來我們這里http://www.bnlfans.net咨詢了解吧！

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.bnlfans.net Consult and understand!