High-pressure boiler tube bending treatment method

High-pressure boilers are crucial mechanical equipment in industrial production, featuring pipes that are tightly connected to withstand high-temperature steam under high pressure. However, various factors can cause seamless pipes to bend and deform, leading to unstable equipment operation, leaks, and other issues. The primary reasons for high-pressure boiler tube bending include:

- Pipe quality issues or improper interface design during production and manufacturing.

- Deformation and damage during transportation and installation.

- Deformation from long-term use or external forces, such as expansion, contraction, or vibration.

Treatment Methods for High-Pressure Boiler Tube Bending

Addressing high-pressure boiler tube bending promptly can extend equipment life, improve efficiency, and prevent accidents. Here are several methods for treating bent high-pressure boiler tubes:

1. Heat Treatment Method

This method involves heating the bent pipe in a high-temperature environment to soften it before bending. This reduces the stress on the pipe wall after heat treatment. However, cooling is necessary after bending to prevent cracks.

2. Cold Bending Method

In this method, the bent pipe is processed into a specific size and shape. Local processing at the bend involves applying significant force around it. This method is simple but requires careful attention to the cold bending angle and the amount of force applied.

3. Hot Bending Method

This method involves heating the pipe with an iron or other heat sources, then bending and kneading it to achieve the desired shape without breaking or deforming the pipe. Safety precautions are essential due to the high temperatures involved.

Precautions

Operate strictly according to the standard operating procedures.

For complex pipe bending issues, seek assistance from professional technicians.

Inspect equipment and tools before operation to avoid risks.

Consider replacing pipes that have reached the end of their service life.

Maintain cleanliness and safety at the construction site to prevent accidents.

Conclusion

High-pressure boilers are indispensable in industrial production. Properly addressing pipe bending issues is crucial for the safety and efficiency of the equipment. By understanding and applying the appropriate treatment methods, such as heat treatment, cold bending, and hot bending, you can effectively resolve pipe bending problems and ensure stable operation. Always prioritize safety and adhere to standard procedures during these processes.