Production and installation of air-conditioning ducts in purification workshops
Production and installation of air-conditioning ducts in purification workshops
The production of the air duct support and hanger of the purification workshop can be completed on the construction site or in the machining pharmaceutical cleanroom of the construction enterprise, depending on the specific conditions such as the size of the project and the site environment; on-site production sites should be equipped with cutting machine, angle grinder, grinder, electric welding machine, table...
Text label: Air-conditioning air duct for purification pharmaceutical cleanroom, production and installation of air duct
Production and installation of air-conditioning duct in purification workshop
The production of the air duct support and hanger of the purification workshop can be completed on the construction site or in the machining workshop of the construction enterprise, depending on the specific conditions such as the size of the project and the site environment; on-site production sites should be equipped with cutting Machines, angle grinders, grinders, electric welding machines, bench drills and other equipment, the ground should be flat, and lay flat steel plates with a thickness of not less than 5mm and an area of u200bu200bnot less than 2m2 to ensure the production accuracy of supports and hangers; air duct installation is commonly used For the boom-shaped hanger of the boom, in order to prevent the swing of the long air duct, a U-shaped hanger can be installed at a certain distance to prevent the swing; the blanking of the support and hanger should be machined, and the incision should be polished when cutting by other methods. If there are burrs, the parts of the support and hanger should be drilled with an electric drill or a hand electric drill, and electric or gas welding should not be used to open or ream the hole. The hanger should be straight, and the thread should be complete and smooth. Use anti-rust paint to prevent corrosion, otherwise it will affect the cooperation between the screw and the nut; the welding of each part of the support and hanger should be continuous welding on both sides, the welding seam should be full and smooth, and the U-shaped swing hanger should be square.
According to the position of the air duct marked on the design drawing, measure and draw a line on the ceiling, first draw the center line of the main air duct, calculate the position of the air outlet, valve, inspection door, automatic control mechanism and three-way accessories, and then refer to the wind The maximum distance of the pipe hanger to determine the position of the hanging point of the hanger; for the hanging of heavier equipment, use the floor through hole to install the hanger, and finally seal the through hole; for the vertically installed air duct, the bracket spacing should not be greater than 4m , A single straight pipe should have at least 2 fixed points. Before anchoring, it should be checked whether each hanger has avoided the valve, inspection door, tee and other components. After confirmation, qualified expansion bolts can be used to anchor the hangers and bolts. The diameter and depth of the holes should be adapted to the selected expansion bolts, otherwise the anchoring strength will be affected. When the length of the horizontally suspended main air duct exceeds 20m, a fixed point to prevent swinging should be set, and each system should not be less than 1. To prevent swinging, a steel U-shaped hanger can be used, or an angle steel can be used to laterally connect the air duct and the soil to establish the column. The processing environment of the air duct in the purification workshop needs to be clean and clean. It should be processed in an environment where doors and windows are secured. According to the construction organization design, the production and installation of the air duct is usually arranged in the early stage of the whole project. The processing environment should be cleaned at any time to ensure a clean environment. Clean, the ground for processing air ducts should be flat and hard, and a flat steel plate with a thickness of not less than 5mm and an area of u200bu200bnot less than 4m2 should be laid on the ground, or a flat material with the same effect should be laid, which can not only prevent dust from flying, but also ensure processing accuracy. . Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for purification plants and clean rooms.
Single bite is mainly used for the closed bite of spliced u200bu200bplates and circular air ducts, with good tightness and strength; combined angle bite is mainly used for the closed bite of rectangular air ducts, which is easy to process and is purely manual in the past The phenomenon of false bites sometimes occurs during processing. Now machine-made bites are used. As long as the ground is flat and hard when the air duct is closed, the phenomenon of false bites can be avoided. It is widely used in purification air-conditioning projects. The head at the end of the air duct is easy to process and has good strength; the insert type bite is generally used for the connection between the branch pipe and the main pipe, and is widely used in comfort air conditioners, which is easy to leak and disengage, so it is not suitable for purification projects. Adopted in the middle; the branch pipe has a hidden bite, which is used for the connection of the branch pipe and the main pipe, with good tightness, but the construction is difficult.
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