風管的加工和放火要注意什么？

發布人：http://www.bnlfans.net   發布時間：2023-02-13 14:03:54

1、圓形管道加固：圓形管道本身強度高，管道兩端法蘭起到一定的加固作用，圓形管道直徑800mm以上或同等800mm以上，管段長度1250mm以上或管段總表面積4m2以上為防止運輸或吊裝時咬口開裂，圓管直徑大于500mm時，縱向咬口兩端用鉚釘或點焊固定。

1. Round pipe reinforcement: the round pipe has high strength, and the flanges at both ends of the pipe play a certain reinforcement role. The diameter of the round pipe is more than 800 mm or the equivalent is more than 800 mm, the length of the pipe section is more than 1250 mm or the total surface area of the pipe section is more than 4 m2, in order to prevent bite cracking during transportation or lifting, when the diameter of the round pipe is more than 500 mm, the longitudinal bite ends are fixed by rivets or spot welding.

2、矩形風管加固：與圓形風管相比，矩形風管本身強度較低，容易變形。

2. Rectangular duct reinforcement: Compared with circular duct, rectangular duct has lower strength and is easy to deform.

長方形管道長邊在630mm以上、保溫管道長邊在800mm以上、管段長度在1250mm以上、或者低壓管道一邊的平面積在1.2m2以上、中高壓管道在1.0m2以上時，為了減少輸送和設置中管道的變形，在制作時采取了加強措施

When the long side of the rectangular pipeline is more than 630mm, the long side of the insulation pipeline is more than 800mm, the length of the pipe section is more than 1250mm, or the plane area of one side of the low pressure pipeline is more than 1.2m2, and the medium and high pressure pipeline is more than 1.0m2, in order to reduce the deformation of the pipeline in the transmission and installation, strengthening measures are taken during the production

通風管防火護套的做法不銹鋼通風管道

Practice of fireproof sheath of ventilation pipe Stainless steel ventilation pipe

1、管道材料不耐火，但有可能接觸火災。 例如，PVC材料的通風管設置在加熱器附近時，需要進行防火處理。

1. The pipe material is not fire-resistant, but may be exposed to fire. For example, when the ventilation pipe of PVC material is set near the heater, fire prevention treatment is required.

2、管道輸送的氣體易燃易爆時，需要防火包裹。 例如正壓管道輸送機有油煙廢氣時，防火包會延長通風管的耐受時間，避免管道燒毀，大量氣體溢出導致爆燃。

2. When the gas transported by the pipeline is flammable and explosive, fire protection package is required. For example, when the positive pressure pipe conveyor has oil smoke and exhaust gas, the fire bag will extend the withstand time of the ventilation pipe to prevent the pipe from burning, and a large amount of gas will overflow to cause deflagration.

3、管道輸送的氣體對溫度敏感時，氣體成分可能對溫度敏感，容易發生溫度變性。 此時，不僅要進行恒溫處理，還要進行防火處理，以免發生意外。

3. When the gas transported by the pipeline is sensitive to temperature, the gas composition may be sensitive to temperature, which is prone to temperature change. At this time, not only constant temperature treatment but also fire prevention treatment should be carried out to avoid accidents.

4、暴露在高溫易燃環境下時，管道一般需要防火處理。 除了餐廳爐子頂部的排風管外，它是用鐵皮做的，通常會燃燒火焰。

4. When exposed to high temperature and flammable environment, the pipeline generally needs fire prevention treatment. In addition to the exhaust pipe on the top of the restaurant stove, it is made of iron sheet and usually burns flames.

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