Analysis of Typical Errors on Main Pumps and Renovation Scheme in Changshu Pumping Station
The typical errors on the main pumps during the operation in Changshu water control pumping station project in the recent years were analyzed to find the reasons causing the errors.The optimal design scheme of the pumping system was developed based on the hydraulic calculations and model tests,which can provide the guidance for the reinforcement and reconstruction of Changshu water control pumping stations.The method combining the theoretical analysis and experiments was used to analyze the raw water pump,the flow passage structure,and the operation conditions.According to the numerical calculation and performance test for the prototype pumping system,the appropriate new hydraulic model was selected to optimize the structure of the prototype pumping system,which improved the flow characteristics.Meanwhile,the structures and materials for the pump were optimized and enhanced,which can improve the operation reliability of the pump.The operation stability of the pumping unit was greatly improved after transformation,which guaranteed the benefits of the water diversion project from Yangtze River to Taihu Lake.The success of the reinforcement and transformation of Changshu water control pumping station can provide references for the management and transformation of pumping stations along the Yangtze River in Jiangsu Province.