Abstract:

During the normal operation of centrifugal compressor in the steam cracking unit at PetroChina Liaoyang Petrochemical Company, abnormal pressure fluctuation occurred in the lubricating oil system. Through the exclusion analysis of the influential factors of process and equipment, it was concluded that the failure of self-regulating valve of the lubricating oil system was the main reason for the pressure fluctuation. This problem was completely solved after carrying out targeted check and repair and taking corresponding technical improvement measures.

Key words:

 ')">">  , lubricating oil, self-regulating valve, abnormal pressure fluctuation