Let's get to know Shenyang ventilation pipeline The importance of it!
Preparation before construction: various device data shall be provided with factory certificate or quality judgment document and product list. The finished air duct shall be free from deformation, distortion, cracking, holes, flange falling off, missing riveting, missing bolt holes and other defects. The valve body, air outlet and other parts of the device shall be checked to see whether the conditioning device is flexible, and whether the noise elimination piece and paint layer are damaged.
Data of device application: bolt, nut, washer and other auxiliary materials shall meet the product quality requirements. Check whether the dimensions, directions and air duct dimensions of the reserved holes on site meet the requirements of the drawings to avoid invalid devices. Rules for air duct device: no other pipeline is allowed to cross the air duct. 2. The air duct of the device in the flammable and explosive environment should be well grounded. The air duct device passing through the living area or production area must be tight, and the air duct interface cannot be installed.
The fixation of outdoor vertical air duct shall not be connected with lightning rod or house lightning protection equipment. The air duct device must conform to the following technical rules: the configuration of the connection between the air duct and ventilation equipment and accessories shall not reduce the size of its connection part; the hanger shall not be set at the air outlet, air valve, inspection door and automatic control mechanism, and shall not be fixed on the flange to avoid the effect of the air duct deformation.
The hanger device must conform to the corresponding device rules. The suspended air duct and components shall be provided with fixed points to avoid swing, such as fixed supports, supports, etc. The setting direction and number of fixed points shall be determined according to the system conditions. The flange padding and thickness shall be different according to the temperature of the air conveyed, and the selected raw materials are also different. When air ducts and components pass through walls and roofs, rainproof covers shall be provided.
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