On the issue of wear and coking of tilting pads
Thread Content
The turbine is a Man turbine with five stages of compression. The shaft bearings in the first and second stages are in the condition shown in the image; I hope experts can help analyze the reasons for this
It is likely a problem with the quality of the lubricating oil; the filter elements in the lubricating oil filter should be replaced, the oil should be thoroughly filtered, and samples should be provided for quality analysis. Thoroughly clean the fuel tank; the final step involves using dough to cover every corner and surface area. Check the top of the fuel tank and clean it to remove any corrosion. Also, asbestos-based gaskets must be strictly prohibited for all gaskets in contact with oil. For example, the gaskets used for fuel tanks and access panels on equipment should all be replaced with gaskets that do not produce fibers.
This might be the film formation phenomenon of the lubricant; conduct a film analysis
Poor return flow of oil, and high temperatures cause the formation of a paint-like film
The tile doesn’t seem to have any problems from the photos; it’s probably just the lubricating paint layer
The temperature of the bearings is high, the clearance between them is small, the oil film does not form on the bearings, and the contact area between them is too large. The solution is to scrape the tiles or adjust their quantity. 【Standard: 60-80 points of contact between 25x25】