How to prevent leakage of welded pipes?

Welded steel pipe refers to a steel strip or steel plate that is bent and deformed into a circular or square shape and then welded into a steel pipe with seams on the surface. The blank used for welded steel pipe is steel plate or strip steel. With the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding and inspection technology, the quality of welds has been continuously improved, and the varieties and specifications of welded steel pipes are increasing; welded steel pipes have lower cost and higher production efficiency than seamless steel pipes. (Seamless pipe means a steel pipe without welds made of steel ingots or solid pipe blanks through perforation. Steel Pipe Dimension is expressed in millimeters of outer diameter * wall thickness.)

The use of welded steel pipes to transport fluids is an economical and convenient means of transportation and plays an important role in the transportation of oil, natural gas and other fluids. However, due to the aging of welded steel pipe equipment, changes in geographical conditions (such as landslides, etc.) and human damage, welded steel pipe leakage accidents often occur. Once the pipeline leaks, it will not only cause direct economic loss and environmental pollution due to the loss of fluid, but also may explode and cause fire in severe cases, resulting in equipment damage and casualties. Therefore, it is of great economic significance and social benefit to detect the leakage of the fluid conveying pipeline and locate the leakage point in time to prevent the further expansion of the leakage accident.

Methods to prevent cracking of welded pipes:

1.In daily production, the long-term storage of welded pipes should be checked regularly. The exposed surface of the welded pipe should be kept clean, the dirt should be removed, and it should be neatly stored in a ventilated and dry place indoors. Always keep the welded pipe dry and ventilated, and keep the welded pipe clean and tidy according to the correct storage method;

2. When the welded pipe is installed, it can be directly welded on the pipe according to the connection method and installed according to the position of use. Generally, it can be installed in any position of the pipeline, but it should be easy to operate and check, pay attention to the flow direction of the medium of the welded pipe, and the welded pipe should be installed horizontally or vertically. When installing welded pipes, attention should be paid to sealing to prevent leakage and affect the normal operation of the pipes.

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