Method for detecting weld joint of stiffening plate

Abstract

The invention discloses a method for detecting the weld joint of a stiffening plate. The method is characterized by comprising the following steps: a, welding an instrument tube having a length greater than or equal to 200 mm and a diameter greater than the diameter of a stiffening plate leakage signal indicating hole on the stiffening plate leakage signal indicating hole in order that the joint of the stiffening plate leakage signal indicating hole and the instrument tube are sealed and welded, and welding a storage tank stiffening plate to a storage tank or a pipeline member after the instrument tube is welded on the leakage signal indicating hole; b, after the stiffening plate is welded, connecting the instrument tube with an air guiding tube to inflate and pressurize a pace in the storage tank stiffening plate for detection; and c, after the detection of the weld joint of the stiffening plate, removing the instrument tube by a polishing machine. The method for detecting the weld joint of the storage tank stiffening plate can conveniently weld the stainless steel instrument tube for guiding air, facilitates the air intake of the closed space after the stiffening plate is welded,can guarantee the air tightness between an air source and an indicating hole inlet, is convenient in leak detection operation and reduces detection cost.

Description

technical field [0001] The invention relates to a welding seam detection method, in particular to a reinforcement plate welding seam detection method. Background technique [0002] In the petrochemical industry, the reinforcing plate can reinforce the petrochemical storage tank and the opening of the pipeline to ensure the stability and safety of the storage tank and pipeline installation components. After the reinforcement plate is welded, the airtightness test of the reinforcement plate weld seam is an important part. Compress the gas through the leakage signal indicator hole of the reinforcement plate into the reinforcement area of ​​the component, and apply foaming agent on the outside of the weld to check whether there are bubbles coming out of the weld to determine whether there is leakage. In the traditional detection method, because the leakage signal indicator hole of the reinforcing plate is small in diameter, it is often difficult to inflate and pressurize the re...

AI Technical Summary

Problems solved by technology

In the traditional detection method, because the leakage signal indicator hole of the reinforcement plate is small in diameter, it is often difficult to inflate and pressurize the reinforcement plate through the leakage signal indicator hole, and the operation is cumbersome

[0003] Therefore, there are above-mentioned inconveniences and problems in the known reinforcement plate welding seam detection method.

Images