Welding and pressing tool for omega sealing ring and use method of welding and pressing tool
A sealing ring and tooling technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of waste, inconvenient carrying of compression flanges, inconvenient inspection and maintenance of heat exchangers, etc., to achieve convenient use, simple structure, Easy to carry effect
Inactive Publication Date: 2016-07-20
LANZHOU LS HEAVY EQUIP
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Problems solved by technology
At present, the compression tooling used in inspection and maintenance is to process and manufacture the compression flange with matching size according to the size of the equipment flange. When the diameter of the heat exchanger is large, the external dimension of the compression flange and the required bolt diameter Correspondingly large, for different specifications of Ω sealing rings, it is necessary to manufacture compression flanges of different specifications, and the compression flanges are inconvenient to carry during on-site maintenance, which will bring inconvenience to the inspection and maintenance of the heat exchanger, and also cause large waste of
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[0018] As shown in the attached figure, an Ω sealing ring welding compression tooling, the structure includes a pressure sleeve 1, a nut 2, a lead screw sleeve 3, a lead screw 4, a torque rod 5, a torque rod bracket 6, a fixing nut 7, height adjustment Shaft 8, positioning sleeve 9, pull rod 10, positioning bolt 11; the pressure sleeve 1 is fixedly connected to one end of the lead screw 4 through the bolt 2, the lead screw 4 is inserted into the lead screw sleeve 3, and the lead screw sleeve 3 and The height adjustment shaft 8 is welded together, the height adjustment shaft 8 is inserted into the positioning sleeve 9, the other end of the lead screw 4 is welded together with the torque rod bracket 6, and the torque rod 5 is inserted into the torque rod bracket 6 to move forward when the torque rod bracket 6 rotates Or retreat, the pull rod 10 and the positioning sleeve 9 are welded together and inserted into the flange bolt holes of the equipment to play a fixing role.
[0019...
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The invention discloses a welding and pressing tool for an omega sealing ring and a use method of the welding and pressing tool and belongs to the field of welding of omega sealing rings of pressure containers in the mechanical industry. The problem that field overhauling is not convenient in the prior art is overcome. The welding and pressing tool structurally comprises a pressing sleeve 1, a nut 2, a lead screw sleeve 3, a lead screw 4, a moment rod 5, a moment rod support 6, a fixing nut 7, a height adjusting shaft 8, a positioning sleeve 9, a pull rod 10 and a positioning bolt 11. The pressing sleeve 1 is fixedly connected to one end of the lead screw 4. The lead screw 4 is inserted in the lead screw sleeve 3. The lead screw sleeve 3 and the height adjusting shaft 8 are welded together. The height adjusting shaft 8 is inserted in the positioning sleeve 9. The other end of the lead screw 4 and the moment rod support 6 are welded together. The moment rod 5 is inserted in the moment rod support 6. The pull rod 10 and the positioning sleeve 9 are welded together. During use, four sets of tools should be evenly distributed on and press the omega sealing ring. The welding and pressing tool is simple in structure, easy to carry and convenient to use, the welding quality of the omega sealing ring can be ensured, the cost is low, and the application range is wide.
Description
technical field [0001] The invention belongs to the field of welding of Ω seal rings of pressure vessels in the mechanical industry. Background technique [0002] Omega seal ring heat exchangers have been widely used in the field of petrochemical refining due to their simple structure and high reliability. Long-term operation under high temperature and high pressure conditions will cause high thermal and structural stresses in the fillet welds connecting the Ω seal ring and the shell side. Under this stress, the welds are prone to cracks and cause leakage. Grind the weld seam to remove the Ω sealing ring, and reassemble the welding Ω sealing ring after the defects are removed. During the assembly process, there is a high requirement for the fit between the Ω sealing ring and the shell side. At present, the compression tooling used in inspection and maintenance is to process and manufacture the compression flange with matching size according to the size of the equipment flan...
Claims
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IPC IPC(8): B23K37/04B23K31/02
CPCB23K37/0443B23K31/02
Inventor 潘秀娟杜金涛王金霞赵佩王岑王振坤
Owner LANZHOU LS HEAVY EQUIP