Therefore, it is necessary to grasp the process characteristics of multi-purpose silencing pipes, understand construction drawings, grasp the relevant conditions of civil engineering and other technical trades with this profession, and verify whether the design elevation, centerline, embedded holes, embedded parts, etc. of the air duct system software meet the installation standards. Prepare various auxiliary materials for installation, prepare lifting equipment and other special tools for installation, and perform line drawing and positioning work on the air duct system software.
Before lifting, it is necessary to inspect whether the support and lifting points of the air duct support, bracket, and lifting equipment are appropriate and sturdy. Before lifting, it is necessary to carefully check whether the rod, roller, rope lock, etc. are fixed and fixed, and the binding is reliable. Multiple unstable elements within the lifting scope should be eliminated. When lifting, a trial lifting should be carried out. When the distance from the ground is 200-300Mm, the lifting should be terminated, and the lifting equipment should be inspected again. After confirming that there are no problems, the lifting should be lifted again to the required relative height. Only after fixing the air duct on the support and bracket can the rope lock be released and the lifting equipment be removed.
Assembly of air ducts: Transport the finished or prefabricated air ducts to the installation location, conduct inspection and verification based on the actual situation, and then sort them by serial number. After the external dimensions and perspectives of each part of the air duct system software are confirmed to be accurate, gradually assemble the air ducts. The connection between each section of the air duct adopts flange connection, and the connection is strictly regulated to be airtight. The length of the air duct to be lifted at once should be based on the standards of the building, the thickness of the air duct, the lifting method, and the configuration of the lifting equipment. The assembled air duct can use the flanges on both sides as the standard, with the middle flange as the measurement point. The suspension line should measure whether the connection of the air duct is vertical, and adjustment should be carried out when there is a large error
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