Recently, with the completion of the 72-hour start-up test of the No. 1 compressor unit of Yumen Compressor Station in the Jiuquan Operation Area of ​​the Western Pipeline, it marked the successful completion of the first 50K maintenance operation of the company's RR electric drive compressor unit, which improved the integrity rate and reliability of the compressor unit. sex. The maintenance of the compressor unit is an important work to ensure the stable and reliable operation of the equipment. 50K maintenance is the most difficult in the maintenance of the compressor unit, the highest technical requirements, and the most difficult disassembly and assembly. Unit 1 of Yumen Compressor Station is a SIEMENS motor-driven RR compressor combined electric drive compressor unit, which has been running for 50,000 hours since it was put into production in 2006. The maintenance was carried out in strict accordance with the requirements of the "SIEMENS Electric Drive Compressor Unit Maintenance and Repair Regulations", and a comprehensive inspection and testing of the compressor bearings, dry gas seals, variable frequency motors, control systems and other auxiliary systems was carried out to minimize the reduction of the unit. operational risk. As the temperature gradually decreases, in order to fully guarantee the gas transmission production in winter, the Jiuquan operation area of ​​the Western Pipeline has strengthened the operation monitoring of the compressor units under its jurisdiction, carried out maintenance on time, strengthened the special care of the compressor units and the instrument alarm system, and ensured the optimized working conditions of the compressor units. ,run smoothly.