Thin-walled equipment lifting lug reinforcing method

Abstract

The invention discloses a thin-walled equipment lifting lug reinforcing method, and aims at reinforcing connection strength between to-be-lifted equipment and lifting lugs and ensuring that cylinder walls of the to-be-lifted equipment do not deform. The method comprises the following steps: (1) determining whether a body diameter and a body wall thickness of to-be-lifted equipment satisfy a lifting lug design requirement or not, or determining whether the body wall thickness of the to-be-lifted equipment satisfies lifting lug design requirement or not through local stress verification, and ifthe determining result is negative, determining the to-be-lifted equipment as thin-walled equipment; (2) adding a stiffening ring cylinder on a cylinder wall, at a position for mounting a lifting lug,of the to-be-lifted equipment; (3) setting circumferential welds at the upper and lower ends, making contact with the cylinder wall of the to-be-lifted equipment, of the stiffening ring cylinder; (4)adding a plug welding hole between the stiffening ring cylinder and the cylinder wall of the to-be-lifted equipment, so as to ensure that the stiffening ring cylinder is tightly combined with the cylinder wall of the to-be-lifted equipment; (5) welding a lifting lug base plate and the lifting lug on the stiffening ring cylinder in sequence, and welding a rib plate between the lifting lug and thestiffening ring cylinder.

Description

technical field [0001] The invention relates to the technical field of hoisting, in particular to a method for reinforcing lifting lugs of thin-walled equipment. Background technique [0002] The lifting lug is a lifting point structure installed on the equipment to be hoisted for lifting equipment during lifting construction operations. In recent years, with the substantial improvement of the technological level and material performance, the wall of large tower equipment has become thinner and thinner, and the thickness of the wall cannot meet the design requirements of lifting lugs for hoisting. Sometimes due to various reasons, it is impossible to weld the lifting lugs of the equipment The barrel section of the section is replaced with a thicker barrel section, and the current standard specification has always been vacant in the design of lifting lugs for thin-walled equipment. Contents of the invention [0003] The purpose of the present invention is to overcome the d...

AI Technical Summary

Problems solved by technology

In recent years, with the substantial improvement of the technological level and material performance, the wall of large tower equipment has become thinner and thinner, and the thickness of the wall cannot meet the design requirements of lifting lugs for hoisting. Sometimes due to various reasons, it is impossible to weld the lifting lugs of the equipment The barrel section of the section is replaced with a thicker barrel section, and the current standard specification has always been vacant in the design of the lifting lug of thin-walled equipment

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