The inner and outer surfaces of cold-rolled steel flange ventilation ducts and the internal heat transfer materials are firmly bonded, which is one of the basic standards to ensure composite materials. The defects of furniture boards with a total area exceeding a certain amount not only endanger the service life of the air duct, but also sometimes reduce the actual effect of its thermal insulation. Therefore, the defects shall not exceed 6 ‰, so as to achieve the normal application of materials in system software.
The traditional ventilation and air conditioning project air ducts are connected horizontally. Flat steel is used to make a pair of flanges, which are riveted on both sides of the air duct and opposite sides. This pair of flanges of two air ducts are used, with a sealing gasket in the middle and anchor bolts used to connect them. Due to the limitation of materials, machines and operations, it is unlikely that the air duct will be long enough to lower such connectors.
The production line has a high level of mechanical automation and automation technology, which further improves the manufacturing efficiency and precision of air duct manufacturing.
Compared with traditional angle steel flange, the air duct creates flange, net weight of air duct, and galvanized iron air duct processing factory, saving flange channel steel and connecting anchor bolts, and reducing material consumption. If the length of the pipe section is greater than 1250mm, or the flat area of one side of the low pressure air duct is greater than 1.2mm, and the medium and high pressure air duct is greater than 1.0mm, the reinforcement method shall be adopted. Before riveting the key air duct and flange for quality control, technical quality review shall be carried out, and 10mm flanging shall be reserved for the pipe section. When connecting flange rivets, it is necessary to make the centerline of the rivet perpendicular to the plate surface to make the rivet head press the plate tightly and make the plate seam tight.
The above is a detailed introduction to the smoke exhaust hood in the kitchen of Jinan Hotel. I hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude http://www.rps-infinia.com