1. Do a good job in preparation before construction.

俗話說“磨刀不誤砍柴工”，充分的準備工作是確保風管安裝質量的前提。在準備凈化風管的制作時，無論是采取工廠集中制作還是現場制作方式，都必須保證場地的潔凈和封閉，并擁有符合條件的采光和照明條件。除此外，還要對制作好的方管進行看管，盡量避免污染。

As the saying goes, "sharpening the chopper is not a mistake", adequate preparation is the prerequisite for ensuring the quality of the installation of the wind pipe. In preparation for the production of purifying ducts, whether in factory centralized production or on-site production, must ensure that the site is clean and closed, and have qualified lighting and lighting conditions. Besides, the square tubes should be carefully monitored to avoid pollution.

2、風管材質的選擇

2. Selection of duct material

風管材質的選擇，對風管的施工質量也有很大的影響。一般而言為了保證風管的重量，需采用小板厚的風管，但除此外還需要綜合考慮風管的尺寸和壓力級別。從設計角度來看，值得注意的是一個系統可以同時存在幾種對應于不同靜壓級別的風管板厚。

The selection of duct material has great influence on the construction quality of the duct. Generally speaking, in order to ensure the weight of the duct, the minimum thickness of the duct is required, but in addition to the need to consider the size of the duct and pressure level. From the design point of view, it is noteworthy that there are several kinds of duct thickness corresponding to different static pressure levels in a system.

3、風管的橫向連接

3. Transverse connection of wind pipes

風管的橫向連接有一定講究，這種連接方式可以說是是延續風管長度的一種手段，還具備增強剛度及保持風管精確地橫向尺寸的作用。通常橫向連接的方式是角鋼法蘭連接，這種連接方式取決于壁厚，更取決于連接種類及板壁加固方式。

The transverse connection of the air duct is particular, which can be said to be a means of extending the length of the air duct. It also has the function of enhancing the stiffness and maintaining the accurate transverse dimension of the air duct. Generally, the way of lateral connection is angle steel flange connection, which depends on the thickness of the wall, more depends on the type of connection and plate wall reinforcement.

通風管道

Ventilating pipe

4、風管的縱向縫接合

4. Longitudinal joint of wind pipes.

風管的縱向縫接合方式可以根據實際情況，選擇對應的方式。在中、低壓風管中常常使用扣式咬口連接，對于矩形風管，聯合咬口使用無任何壓力級別，因此使用扣式咬口可以節省一道翻邊工序，目前大多數的風管縱向縫接合都采用了扣式咬口。對于立縫和封蓋式立縫可以使用鉚釘、自攻螺絲、點焊、壓凸凹痕等方法緊固。

The longitudinal joints of wind pipes can be selected according to the actual situation. In the middle and low pressure air ducts, the buckle bite is often used. For rectangular air ducts, the joint bite is used without any pressure level. Therefore, the use of the buckle bite can save a flanging process. At present, most of the longitudinal seam joints of the air duct are used buckle bite. For vertical seams and capped vertical seams, rivets, tapping screws, spot welding, indentation and other methods can be used to fasten.

5、風管的存放

5. Storage of air duct

預制好的風管，是必須要做好存放工作，以免受到二次污染。可將管口用塑料布等密封材料封住，然后將風管分門別類堆放好。在使用風管前，要注意進行徹底的清洗工作，確定板材表面無腐蝕，干燥后不吸塵。

The prefabricated good duct must be stored well so as not to be contaminated by the two pollution. The pipe can be sealed with plastic cloth and other sealing materials, and then the air pipes can be stacked in different categories. Before using the air duct, we should pay attention to thorough cleaning to ensure that the surface of the plate is non-corrosive, no dust after drying.