因而要搞好把握多用途消音管的工藝特點，了解施工圖紙，掌握土建工程和其他技術工種同本工種的有關狀況，核查風管系統軟件的設計標高，中心線、預埋孔眼，埋件等能否合乎安裝標準。備齊安裝用的各種輔材，準備好吊裝機具和安裝用的其他專用工具，對風管系統軟件畫線定位等工作中。

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.

起吊前，要對風管支、支架，吊裝機具，采用吊裝機具的支、起吊點，是不是恰當、堅固開展查驗，吊裝前應認真仔細，把桿、滾輪、繩鎖等是不是固定不動，捆扎靠譜并要起吊范疇內的多種不穩定要素。吊裝時，要開展試吊，當距地200－300Mm時，終止起吊，再一次對吊裝機具開展一次查驗，確定沒有問題后，再次起吊到所需相對高度。把風管固定不動在支、支架上以后，才可以解除繩鎖，拆移吊裝機具。

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.

風管的組對：將制成品或預制構件好的風管運到安裝地址，聯系實際情形開展查驗、核查，再按序號開展排序，風管系統軟件的各部位外形尺寸和視角確確準確無誤后，即逐漸風管組對工作中。風管各管段中間的聯接選用法蘭聯接，連接處規定嚴實不透風。一次起吊風管的長度要依據房屋建筑的標準，風管的厚度，起吊方式和吊裝機具配置狀況明確，組對好的風管可把兩邊的法蘭作為標準，以正中間法蘭為測量點，吊線測量風管的聯接是不是豎直，誤差大時要開展調節

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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