The continuous operation cycle of the slurry axial flow pump in the polypropylene production department of Liaoning Jincheng LyondellBasell Petrochemical Co., Ltd. has set a new record

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On that day, the continuous stable operation period of the slurry axial flow pump, which is part of the equipment in the polypropylene production department at Liaoning Jincheng LyondellBasell Petrochemical Co., Ltd., successfully exceeded previous records, achieving long-term safe and stable operation. To address the operational challenges of axial flow pumps, such as sudden failures, difficulties in monitoring, and short service life, the polypropylene production department established a dedicated team for special care, implementing thorough inspections and comprehensive lifecycle management. A systematic control mechanism was developed to oversee key aspects such as lubrication, sealing, temperature, and vibration. An innovative two-step approach for the main sealing system – regular oil drainage and replacement, along with sampling for analysis – is employed to effectively maintain the cleanliness of the lubrication system and its operational stability. Meanwhile, precise analysis of the sealing oil enables accurate assessment of the wear condition of the internal bearings, providing strong support for predictive maintenance of the equipment. On this basis, the specialized maintenance team utilizes equipment operation data and historical failure cases, combined with techniques such as vibration analysis and temperature monitoring, to develop a health assessment model for axial flow pumps, thereby facilitating a shift in equipment management from reactive repair to proactive early warning. At the same time, efforts are made to collaborate with equipment manufacturers on technical research and development, to optimize and upgrade key components such as impellers and bearings, thereby significantly enhancing the load-bearing capacity of these critical parts. The implementation of a series of combined measures effectively addressed the problem of frequent failures in axial flow pumps, laying a solid foundation for the long-term stable operation of the key equipment at Liaoning Jincheng LyondellBasell Petrochemical Co., Ltd. It also provided strong support for improving the overall efficiency of the facility.