巴基斯坦N-J项目低比转速水轮机转轮水力优化设计  

Hydraulic Optimization Design of Low Specific Speed Turbine Runner of N-J Project in Pakistan

作　　者：吴喜东[1] 徐用良[1] 陈秀维[2] 

机构地区：[1]哈尔滨大电机研究所,黑龙江哈尔滨150040 [2]黑龙江大学水利电力学院,黑龙江哈尔滨150080

出　　处：《水电能源科学》2009年第4期167-169,共3页Water Resources and Power

摘　　要：论述了低比转速水轮机采用长短叶片转轮的优点及转轮水力设计要点,针对巴基斯坦N-J项目的水力设计参数采用三维流体计算软件改型优化设计了A351d转轮,并分析了改型后A351d转轮在两个重要非设计工况点的流线、压力分布。模型验收试验结果表明,A351d转轮各项性能指标优异,满足标书要求。In this paper,the authors discuss the advantages of applying split（long and short） blade runner to low specific speed turbine and the key technology of hydraulic design of the runner. Based on the plant hydraulic design parameters of N-J Project in Pakistan A351d runner was optimized by using three-dimensional flow calculation software. And analysis the importance of two off-design operating points in hydraulic optimum design is analyzed. The model acceptance test results show that excellent performance of the A351d runner meets the tender requirements.

关 键 词：低比速 长短叶片 最优效率 单位转速 稳定性 优化 水力设计 

分 类 号：TK730.2[交通运输工程—轮机工程] TK733.1[动力工程及工程热物理—流体机械及工程]