The inner cylinder pin of the steam turbine is an important component that connects the inner cylinder and piston of the steam turbine, responsible for fixing the two components and transmitting power. During the operation of the steam turbine, due to long-term exposure to high temperature and pressure, the inner cylinder pins may experience rusting, deformation, and other issues, making disassembly difficult. If the inner cylinder pin of the steam turbine cannot be removed, it will cause certain difficulties for the normal operation and maintenance of the steam turbine, so it needs to be dealt with in a timely manner.

Firstly, if the inner cylinder pin of the steam turbine cannot be removed, it is necessary to analyze the cause of the problem. Possible reasons include rusting, deformation, or jamming of the inner cylinder pin surface; The gap between the inner cylinder and the inner column is too small, which makes it difficult to disassemble the pin smoothly; The joint part of the pin is welded or glued together.

Different methods can be adopted to solve problems for different reasons. Firstly, you can try using lubricant or thread sealant to soften and loosen the fixation caused by rust, and then try gently tapping the pin with a hammer to help it loosen. If the inner cylinder pin is deformed and cannot be disassembled, heating or cooling methods can be tried to restore it to its original state. In addition, the part of the pin in contact with the inner cylinder can be polished smooth to help the pin be disassembled smoothly.

If none of the above methods can solve the problem, more professional tools and techniques may be needed to handle it. For example, a specialized pin removal tool can be used to lock it onto the pin and apply appropriate force to remove it. Alternatively, it is possible to consider disassembling the entire inner cylinder of the steam turbine and replacing the pins.

During the disassembly process, it is important to pay attention to safe operation. Firstly, it is necessary to confirm that the turbine has been shut down and cooled down to avoid accidents. Secondly, it is necessary to wear appropriate personal protective equipment such as gloves, goggles, etc. Be careful and cautious when using tools and applying force to ensure the safety of yourself and the equipment.

To avoid similar problems from happening again, it is recommended to regularly inspect and maintain the internal components of the steam turbine, and replace aging, damaged, or problematic parts in a timely manner to ensure the normal operation and performance of the steam turbine.

In general, if the inner cylinder pin of the steam turbine cannot be removed, it is necessary to analyze the cause according to the specific situation and take corresponding measures to solve the problem. During the processing, attention should be paid to safety and cautious operation to ensure that the steam turbine can operate normally. I hope the above suggestions are helpful to you.