Submerged arc welding equipment and its welding method
A technology of submerged arc welding and welders, applied in welding equipment, welding accessories, arc welding equipment, etc., can solve the problems of low welding efficiency and narrow internal space
Active Publication Date: 2021-09-17
JIANGSU YONGDA CHEM MACHINERY
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Problems solved by technology
In this case, due to the narrow internal space, the general-purpose submerged arc welding head cannot be used, and only manual arc welding can be used, and the welding efficiency of manual arc welding on such large equipment is too low
Method used
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Embodiment Construction
[0021] Such as Figure 1-4 As shown, a submerged arc welding tool is arranged in the tube box space of the reactor or heat exchanger. The tube box space is surrounded by the tube plate 1, the tube box nipple 14, and the tube box head 15 The inner space is used for welding the girth weld connecting the tube sheet 1 and the pipe box pup joint 14; it includes a positioning plate 16, a central shaft 18, an adjusting column 22 and an adjusting rod 25, and the positioning plate 16 is fixed on the At the center of the tube sheet 1, the central shaft 18 protrudes from the center of the positioning disc 16, is perpendicular to the positioning disc 16, and is fixedly connected with the positioning disc 16, and the adjustment column 22 is installed on the central shaft 18 through a rotating mechanism, and rotates around the center The shaft 18 rotates or slides axially along the central axis 18; the adjustment column 22 is arranged with a number of holes, and the adjustment rod 25 passes...
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The invention relates to a submerged arc welding tool and a welding method thereof. The submerged arc welding tool is arranged in the tube box space of a reactor or a heat exchanger, and the tube box space is a tube plate, a tube box short joint, a tube box The inner space surrounded by the box head is used for welding the girth weld of the connection between the tube sheet and the tube box nipple; the submerged arc welding tool includes a positioning plate, a central axis, an adjusting column and an adjusting rod, and the positioning plate passes through several The connecting piece is fixed at the center of the tube sheet. The central axis protrudes from the center of the positioning plate, is perpendicular to the positioning plate, and is fixedly connected with the positioning plate. The adjustment column is installed on the central axis through a rotating mechanism, and rotates around the central axis or Axially slide along the central axis; the adjustment rod is movably installed on the adjustment column, and the submerged arc welding structure is fixedly installed on it; the height and left and right positions of the submerged arc welding mechanism are adjusted through the adjustment rod, and the submerged arc welding mechanism is facing the ring welding Seam, adjust the column to rotate around the central axis, drive the adjustment rod to drive the submerged arc welding mechanism to rotate along the ring weld, and perform welding. With a welding method, the submerged arc welding structure is used to realize the relative uniform motion of the submerged arc welding structure and the circumferential weld seam for welding.
Description
technical field [0001] The invention relates to the technical field of heat exchange, in particular to a submerged arc welding tool and a welding method thereof. Background technique [0002] For large-scale reactors or large-scale heat exchangers, the girth welds connecting the tube sheet and the pipe box pup joint often need to be welded from the inside, especially when stainless steel composite materials are used. In this case, because the internal space is narrow, the general-purpose submerged arc welding head cannot be used, and only manual arc welding can be used, and the welding efficiency of manual arc welding on such large equipment is too low. The invention is a tool suitable for submerged arc automatic welding inside a large reactor or heat exchanger. This tooling can not only improve welding efficiency, but also ensure welding quality. Contents of the invention [0003] The invention provides a submerged arc welding tool, which is used for assisting in weldin...
Claims
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IPC IPC(8): B23K9/18B23K9/28B23K9/32
CPCB23K9/18B23K9/287B23K9/32
Inventor 魏俊亮
Owner JIANGSU YONGDA CHEM MACHINERY