Ultra-large pressure vessel folding method

• Main Authors: LIU XINRU, WANG JIALU, SHAN MENGYUN, JI JUNQI, LIU SHUQUAN, DONG FENG, ZHU HUIJUN, YU CHENGKE, HU FENGLUAN, QIAO YANJUN
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CRANES; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention belongs to the technical field of oil refining and chemical engineering, and particularly relates to an ultra-large pressure vessel folding method. According to the method, folding of the ultra-large pressure vessel is completed through the five steps of designing and manufacturing a folding jig frame, conducting design, model selection, manufacturing and installation on a temporary lifting lug, marking and placing a jig frame ground sample line on a folding site of the ultra-large pressure vessel, arranging buttresses according to the ground sample line, placing the jig frame on the buttresses and folding all single-section barrel bodies. By the adoption of the ultra-large pressure vessel folding supporting formwork, the using amount of water pressure saddles is effectively reduced, the manufacturing period of a folding jig frame is shortened, and cost is saved. The gantry crane and the SPMT are combined for folding, so that the folding cost is reduced, and meanwhile, the operation space is red