1. The installation of the support and hanger shall be symmetrically installed according to the center line of the ventilation duct of the fabric air duct. The hanger shall be securely and reliably fixed, and the welded part shall be painted. 2. When installing the riser pipe clamp, the top pipe clamp should be fixed first, from top to bottom. 3. The ventilation duct of the fabric air duct is long. When installing the brackets in a row, install the two ends first. Take the brackets at both ends as the benchmark, and install the middle brackets by the pulling method. 4. Horizontal installation Long side ≤ 400 mm, spacing ≤ 4 meters; long side > 400, spacing ≤ 3 meters; the support and hanger of the spiral fabric air duct ventilation duct are 5 meters and 3.75 meters respectively. 5. If the length of the main and dry fabric air ducts exceeds 20 meters, there should be fixed points to prevent swinging, and each system should not be less than 1. When the fabric air duct is installed vertically, the distance between the support and hanger is ≤4 meters, and a single root has at least two fixed points. 6. The support and hanger shall not be set at the tuyere, valve, inspection door and automatic control mechanism, and the distance from the tuyere shall be greater than 200 mm. 7. The corners of the hoop bracket should be straight, the circular arc of the circular fabric air duct ventilation duct should be uniform, and the hoop should be close to and hold the fabric air duct ventilation duct. 8. The support and hanger of the thermal insulation fabric air duct ventilation pipe should be placed outside the thermal insulation layer. The thermal insulation fabric air duct ventilation pipe should not be in direct contact with the support and hanger. It should be padded with strong thermal insulation and anti-corrosion materials, and its thermal insulation thickness is the same as that of the thermal insulation layer. Prevent 'cold bridges'. The connection of fabric air duct ventilation pipe 1. The flange sealing gasket should be made of airtight and elastic materials. The flange gasket should minimize the number of joints. The joint form should be stepped, and the joint should be coated with sealant. 2. When the flange is connected, first pad the gasket, then align the two flanges first, put on a few bolts and tighten the nut without tightening, and then use a sharp punch to insert it into the unbolted screw hole, Pry the two screw holes until all the bolts are in, then tighten the bolts. When tightening the bolts, tighten them gradually and evenly. 3. After the ventilation duct of the fabric air duct is connected, check whether the connection of the ventilation duct of the fabric air duct is straight based on the flanges at both ends. 4. The bolts connecting the flanges of the fabric air duct and the fabric air duct should be made of the same material of the fabric air duct, and the ordinary type should be sprayed with paint. 5. Galvanized bolts are used to connect the ventilation ducts of aluminum sheet fabric air ducts, and galvanized washers are placed on both sides of the flange. 6. For non-metallic fabric air duct ventilation duct flange connection, the end faces of the two flanges should be parallel and tight, and galvanized washers should be added on both sides of the flange bolts. 7. When the ventilation duct of the composite fabric air duct is connected by a flange, there should be measures to prevent cold 'cold bridgeInstallation of fabric air duct ventilation duct 1. Technical requirements, the level of exposed installation should be ≤3mm per meter, and the total deviation should be ≤20mm; the verticality should be ≤2mm per meter, and the total deviation should be ≤20mm; concealed installation, the position should be correct, and there should be no obvious deviation. 2. Installation sequence: dry pipe first and then branch pipe, installation method: determined according to the actual situation. The fabric air duct ventilation duct can be connected to a certain length on the ground, and then hoisted as a whole. Generally, it can be extended to about 10-12 meters. Use an inverted chain or a lift to hoist the fabric air duct ventilation duct to the bracket (heavier ones). Fabric air duct ventilation duct), the fabric air duct ventilation duct can also be placed on the bracket section by section and connected section by section. 3. When the fabric air duct ventilation pipe passes through the fireproof and explosion-proof wall or floor that needs to be closed, a pre-embedded pipe or protective sleeve should be installed, and the thickness of the steel plate should not be less than 1.6mm. , Use non-combustible and non-hazardous flexible materials to block. 4. The joints of the composite fabric air duct ventilation duct should be firm and free of holes and cracks. After the fabric air duct ventilation duct system is installed, the tightness inspection should be carried out according to the system category. Installation of the air valve 1. Before installing the air valve, check whether the frame structure is firm, and whether the adjustment braking, positioning and other devices are accurate and flexible. 2. The installation of the air valve is the same as the installation of the fabric air duct ventilation duct. Align its flange with the fabric air duct ventilation duct or the flange of the equipment, add a sealing gasket, and tighten the bolts to make it ventilated with the fabric air duct. Pipe or equipment connections are tight and tight. 3. When installing the air valve, the operating device of the valve should be easy to operate manually, and its installation direction should be consistent with the direction marked on the valve body shell. 4. The installed air valve should have obvious and accurate opening direction and opening degree signs on the valve shell. The fusible part of the fire damper should be installed on the windward side of the ventilation duct of the fabric duct, and its melting point temperature should meet the design requirements.
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