Clean room air duct and flange connection project
Clean room air duct and flange connection project
Check the technical quality before riveting the clean room air duct and the flange. First put the flange on the air duct, leave about 6-9mm flanging at the end of the pipe, and the center line of the pipe and the flange plane should be perpendicular , and then use the rivet pliers to rive the air duct and the flange, and leave the surrounding flanging; the air duct flange...
Text label: clean room engineering, clean clean room modular air duct flange connection, clean room design and installation
Clean room air duct and flange connection project
Check the technical quality before riveting the clean room air duct and the flange. First put the flange on the air duct, leave about 6-9mm flanging at the end of the pipe, and the center line of the pipe and the flange plane should be perpendicular , and then use rivet pliers to rive the air duct and flange, and leave all sides for flanging; sealant should be applied to the rivets on the inner side of the air duct flange, and the surface oil on the rivets should be removed before gluing; the air duct flanging should be Flat and close to the flange, cut off the excess bite layer at the bite of the air duct, and keep a layer of allowance, the four corners of the flanging must not be torn, and the corners should be tapped into an arc shape when gluing. Appropriate amount and uniformity, and there should be no accumulation; the interface that cannot be flanged to connect the air duct should be machined, the size should be correct, the shape should be regular, the interface should be tight, and the four corners of the interface should be fixed; The same as the blue connection, it should meet the strict and firm requirements, and should not have defects such as self-dropping and bursting.
Direct socket connection, make one end of the air duct slightly larger than the other end, and then insert the connection, the depth > 30mm, fix the connection position of the two air ducts with rivets or self-tapping screws, inside or outside the joint seam Apply sealant along the way to complete the connection of the air duct sections. This connection form has the simplest structure and the most economical materials, but the joint stiffness is poor, so it is only used on circular air ducts with small cross-sections. The core tube is connected by socket, using the core tube as an intermediate connector, and inserting two air ducts at both ends of the core tube to achieve the connection, with a depth of ≥ 20mm, and then use rivets or self-tapping screws to fix the air duct and the core tube connection section, and use Sealant seals the seam tightly, and this type of connection is usually used on round ducts and oval ducts. For vertical bite connection, use the two ends and four sides of the air duct to disassemble into one 90° and two 90° respectively to form two dismantling edges; in order to block and fix the four corners, add a 90° angle to each of the four corners when closing the mouth. After all the bites are finished, apply sealant on the seams of the bites, which are usually used for rectangular air duct connections. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and clean workshops.
The four sides of the rectangular air duct are connected with the iron sheet flange and the air duct, which are not one piece. They are hollow flanges that are specially pressed. They connect the four sides of the air duct and are inserted into the prefabricated flange inserts. , The fixing of the insert and the air duct body plate is made of rivet connection, and some are in the form of barb and back; the four corners of the air duct are inserted into the 90° angle to strengthen the forming and sealing of the four corners of the rectangular air duct; the spring clip must use a special Mechanical processing, the sealing of the connection interface is not only sealed by the sealing strip on the hollow flange and the end plane of the air duct, but also the two flange planes need to be sealed by the sealing strip when connecting. The vertical and joint angle-shaped inserts are connected, and a vertical joint angle is used to bite the flat inserts, and the two ends of the rectangular air ducts are connected together by the vertical joint angle bites and flat inserts, whether it is a flat insert or a vertical joint. The joints of the corner bites must be fastened with rivets; the vertical bites of the four corners of the air duct are added with a 90° angle, and the other two air duct surfaces grow about 20mm from the two ends of a pair of inserts at the flat insertion place. On the inserts on the air duct surface, this connection method is mainly to change the defect of the low rigidity of the flat inserts, and evenly apply sealant to the joints after the bite.
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