Production and installation requirements of support and hanger in dust room workshop
Production and installation requirements of support and hanger in clean room pharmaceutical cleanroom
When the pipe supports, supports and parts are welded, the height of the weld should be greater than the minimum thickness of the weldment, and the outer surface should be coated with anti-rust paint after fabrication; when the pipe is in normal operation, the plastic steel of the support is not allowed to appear Excessive deformation affecting normal operation; support and hanger...
Text label: Clean room support and hanger production, clean room installation requirements
Production and installation requirements of support and hanger in clean room pharmaceutical cleanroom
When the pipe supports, supports and parts are welded, the height of the weld should be greater than the minimum thickness of the weldment, and the outer surface should be coated with anti-rust paint after fabrication; when the pipe is in normal operation, the plastic steel of the support is not allowed to appear Excessive deformation that affects normal operation; the rooting structure of the support and hanger, especially the rooting structure of the fixed bracket, the supporting area must be a reliable building structure. When installing single-pipe and double-pipe sliding supports, the heat-insulating pipe diameter is less than or equal to DN100mm, and the non-insulation pipe diameter is less than or equal to DN150mm. Usually, the thickness of the installed brick wall should be ≥240mm, and it can also be installed on the brick wall column or reinforced concrete column; For brackets with adiabatic pipe diameter > DN100mm and non-insulated pipe diameter > DN150mm, the installation area usually selected is brick wall column or reinforced concrete column, other areas need specific calculation; When the bracket is supported to the brick wall, the distance between the fulcrum and the lower chord of the roof truss should be greater than 1.0m.
When installing the pipe support of the sliding support and the attached equipment, it is necessary to fully consider the problem of the thermal displacement of the pipe. Usually, a pre-offset should be set. The direction of the offset is the opposite direction of the expansion of the pipe, and the specific offset value is equivalent to one-half of the total thermal displacement value. The pipeline supported by the fixed bracket should be welded and reinforced with the bracket steel, or reinforced with a clamp to ensure that there is no relative displacement between the pipe and the bracket steel; the movable bracket cannot hinder the displacement caused by the thermal elongation factor of the pipeline. When sliding on the metal pad of the support, pay attention that the support cannot be deflected, and pay attention not to let the sliding bracket get stuck; the hanger rod without heat-extension pipe should be installed vertically, and the hanger rod with heat-extension pipe should be installed vertically. It is necessary to incline the side opposite to the displacement direction during installation. Usually, the inclination value is equivalent to half the displacement value. The spring bracket needs to be set up to adjust the structure involved in the compression of the spring, and the supporting structure designed under the spring needs to be different from the force. The direction is vertical. If the spring is in a compressed state during installation, it needs to be compressed according to the design requirements. The compression degree of the spring during operation is required to be within 90% of the allowable compression degree. Zhongjing Global Purification can provide consulting, planning, design, construction, installation, transformation and other supporting services for clean rooms and clean workshops.
Steel pipe is a common type of material in pipelines. The material, specification, pressure level and processing quality of the pipe joint should meet the design requirements. The surface of the pipe joint should be free of scars, cracks, serious corrosion, etc.; Flush, when measuring, you can use a 300mm ruler to stick to the inner wall of the interface in sequence. The allowable deviation of the wrong interface is 0.2 times the wall thickness, and it should not be greater than 2mm; the longitudinal weld should be placed on the vertical line of the pipe center. The longitudinal weld should follow the staggering principle. When the pipe diameter is less than 600mm, the staggered distance should not be greater than 100mm. When the pipe diameter is greater than or equal to 600mm, the staggered distance should not be less than 300mm; if the steel pipe is provided with a reinforcement ring, when The butt welding seam of the reinforcement ring should be staggered from the longitudinal welding seam of the pipe section, and the distance should not be less than 100mm; the distance between the reinforcement ring and the circumferential welding seam of the pipe section should be greater than 50mm; It should be less than 100mm; the circumferential weld spacing of different parts of the straight pipe section is required to be greater than 200mm; cross-shaped welding is not allowed at any position in the pipeline.
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