1. Do a good job in preparation before construction.
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. Selection of duct material
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. Transverse connection of wind pipes
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.
4. Longitudinal joint of wind pipes.
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. Storage of air duct
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.