How to prevent the welded pipe from leaking?

Welded steel tube refers to a steel pipe with seams on the surface that is welded after bending and deforming a steel strip or steel plate into a circular, square, etc. shape. The blank used for the 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 continues to improve, and the variety and specifications of welded steel pipes are increasing; welded steel pipes have lower cost and higher production efficiency than seamless pipes.

The use of welded steel pipes to transport fluids is an economical and convenient way 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 landslide races, etc.) and man-made damage, welded steel pipe leakage accidents often occur. Once the pipeline leaks, it will not only cause direct economic losses and environmental pollution due to the loss of fluid, but in severe cases, explosions and fires may occur, 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:

In daily production, the long-term storage of welded pipes should be checked regularly. The exposed surface of welded pipes should be kept clean, free of dirt, and stored neatly in a ventilated and dry place indoors. It is strictly forbidden to stack them in the open air or in damp. Always keep the welded pipe dry and ventilated, and keep the welded pipe clean and tidy according to the correct storage method;

When the welded pipe is installed, it can be directly welded on the pipe according to the connection method, and can be installed according to the location of use. Generally, it can be installed at any position of the pipeline, but it should be convenient for operation and inspection. Pay attention to the flow direction of the welded pipe medium, 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 pipeline.

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