Detachable trough tray liquid distributor can be customized according to HG/T 21585.1-1998 standard

Description :

　　Detachable trough tray liquid distributor can be customized according to HG/T 21585.1-1998 standard

　　Our company (Dier Chemical Packing, Pingxiang City, Jiangxi Province) produces trough gas-liquid distributors, also known as detachable trough gas-liquid distributors and detachable trough liquid distributors. They are processed and produced according to the structural form, basic parameters, materials, codes, and manufacturing technology requirements specified in HG/T 21585.1-1998 standard;

　　The detachable trough plate gas-liquid distributor is installed on the top of the packing tower and on the upper part of other packing layers for liquid distribution and gas-liquid distribution;

　　The detachable trough plate liquid distributor is installed at the top of the packing tower for liquid distribution.

　　Detachable trough plate gas-liquid distributor with liquid blocking cap.

　　Detachable trough plate liquid distributor without liquid blocking cap.

　　The manufacturing requirements for the finished product of trough tray liquid distributor are as follows:

　　1. The distribution board is made of steel plate. The board and cutting edges should be flat and smooth. The welding joint type shall be in accordance with HG20583 "Design Specification for Steel Chemical Vessel Structures". The butt weld shall be DU1 or DU2 according to the plate, and the welding angle size of the fillet weld shall be equal to the thickness of the thinner plate. The rest shall be in accordance with GB985 "Basic Types and Sizes of Gas Welding, Manual Welding and Gas Shielded Welding Groove".

　　2. Except for intermittent welding between the liquid guide angle steel and the riser, between the liquid guide angle steel and the baffle, and between the bracket and the liquid stopper cap, and between the pipe and the liquid stopper cover, all others are continuous welding. The production of each component should be neat and not open, and the gap between the liquid guide angle steel and the contact line of the riser should be less than 1mm.

　　3. After each distribution board is manufactured, it should be numbered and a "Distribution Board Numbering Diagram" should be drawn

　　4. The connection surface between the bottom plate and the support ring, as well as between the bottom plate and the bottom plate, should be smooth and free of burrs. In order to prevent liquid leakage at the contact part between the bottom plate and the support ring, for the segmented distributor, the flange ends of the bottom plate should be cut about 50mm in front of the flange ends. After the flange is turned, both sides of the cut should be welded. After welding, it should be ground at a right angle with a grinding wheel and leveled without deformation. After the manufacturing of each distribution board is completed, it should be watered and leak tested at the manufacturing plant, and pre assembled.

　　5. The bracket and liquid blocking cap are first assembled outside the tower. After connecting the bracket with the riser and support plate with bolts, the liquid blocking cap is welded to the bracket. Before being installed inside the tower, the bolts are removed and assembled inside the tower.

　　6. For segmented distributors, the bolt holes on the flange of the bottom plate flange should be drilled in conjunction with the connected plate.

　　7. After on-site assembly is completed, the tear hole should be blocked and water should be filled to test for leakage. Only local leakage or slow dripping at individual points is allowed at the joints of each connecting surface. At the same time, the spraying situation should be observed, and the spraying should be uniform.

　　8. It is required that the distributor and support ring should be on the same horizontal plane as the upper end face of the distributor support beam, and the upper surface should be flat with a flatness deviation of less than or equal to 2mm. The upper surface of the beam should not be higher than the upper surface of the support ring, and the butt welds on the upper surface of the support ring should be ground flat.

　　9. During the manufacturing of the distributor, the deviation of the aperture of the spray holes on the upper and lower layers of the riser should be strictly controlled, and the hole edges should be smooth. At the same time, during the manufacturing process, it should be ensured that the distributor is installed, and both the upper and lower spray holes should be on the same horizontal plane. The horizontal deviation between any two spray holes on the same layer should not exceed 3mm. Other technical requirements should be manufactured and accepted according to JB1205 "Technical Conditions for Tray" and standard manufacturing drawings.

　　10. The general tolerance of finished linear dimensions should comply with the GB1804-m tolerance level specified in GB1804 "General Tolerances for Linear Dimensions without Indicating Tolerances".

　　After the distributor is manufactured, the factory's quality inspection department should scan the technical requirements for inspection and provide a certificate of inspection before packing.

　　The company produces 18 series and over 100 types of products including metal, ceramic, plastic fillers, tower internals, and chemical equipment. At the same time, it has hired four chemical tower design PhDs from Tsinghua University, Tianjin University, South China University of Technology, and Zhejiang University of Technology to provide strong technical support for the company's product quality, tower internals design, production, and new product development. There are more than 20 independently invented patents, which meet the needs of serving chemical and environmental protection enterprises. They produce a series of tower internals and chemical packing products, which are sold to coking and chlor alkali, fertilizer, chemical, salt, pharmaceutical, refining, power, environmental protection, coking and other manufacturers across the country with good usage effects. In 2008, they obtained the self operated import and export rights for foreign trade, and their products are exported to more than ten countries including Israel, France, the United States, South Korea, Germany, Brazil, Japan, etc.

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