1 引言 江都二站共有8台套机组,改造后主泵采用1.75ZLQ—6水泵,配套电机型号为TL1000—24/2150,总装机容量为8000kW,设计扬程时的单泵流量为10.2m~3/s,效率为73.4％。 虹吸式出水流道驼峰段的改造是二站改造中一项十分重要的工作。对这个关键性的技术问题,做了大量的调研、分析和技术研讨,确定了较为科学合理的改造方案,经试运行,证明出水流道驼峰段的改造是成功的。 1 Introduction Jiangdu two stations a total of eight sets of units, after the transformation of the main pump using 1.75ZLQ-6 pump, matching motor model TL1000-24 / 2150, with a total installed capacity of 8000kW, the design of the head when the single pump flow of 10.2m ~ 3 / s, the efficiency of 73.4%. Siphon outlet flow hump section of the transformation is the transformation of the second station in a very important work. This key technical issue, made a lot of research, analysis and technical discussions, to determine a more scientific and rational transformation program, the trial run to prove that the water passage hump section of the transformation is successful.