【Sea River: Insights from Others】Jinxi Petrochemical Completes the First Round of Improvements to Improve the Efficiency of Its Pumps

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To address the issues of low operating efficiency and high energy consumption of pumps, Jinxī Petrochemical launched a targeted improvement initiative titled “One Strategy per Pump” in late March. To date, the first 5 pumps of this company have been modified, resulting in a total energy savings of 13,400 kWh. The remaining 39 pumps will be modified within the course of this year, with an estimated annual energy savings of 4 million kWh. 　　To address the issue of inefficient operation of pumps, Jinxī Petrochemical has launched a targeted initiative to address problems related to pumps operating under abnormal conditions. It examines the operational parameters of each pump individually and formulates customized solutions tailored to each specific pump. For pumps such as hydrogen feed pumps that have a large margin in terms of flow rate and head, the company reduces operating power consumption by decreasing the diameter of the impeller. Variable frequency drives are installed on pumps that require frequent flow rate adjustments, enabling precise control of speed and thereby avoiding energy losses caused by valve throttling. As for old, inefficient pumps that are not worth upgrading, they are replaced with new, high-efficiency, energy-saving pumps to improve energy efficiency from the source. 　　Currently, for the hydrogen feed pumps whose impellers have been cut first, the motor current has decreased by 12%, with an estimated annual energy savings of over 300,000 kWh per pump. Next, Jinxi Petrochemical will rely on the \"point-to-point\" management system to carry out weekly scheduling and monitoring, ensuring that the remaining 39 pumps are addressed in batches so that all repairs are completed by the end of the year.