摘要
主要从效率、飞逸转速、空化、压力脉动等特性参数对机组经济运行的影响着手,通过水轮机模型试验得出:其模型最高效率达93.50%,最大飞逸转速值为157.87 r/min,该参数均满足要求,临界空化系数也满足要求,个别点压力脉动幅值超出了合同保证值,补气后可满足要求.成像观测在运行区域内没有发现叶片正、背面脱流,卡门涡现象.验收试验达到了满意的结果.
The influence of characteristic parameters,such as efficiency,runaway speed,cavitation,pressure pulse on power unit,are studied.The highest efficiency in turbine model test can be to 93.50%,the highest runaway speed can be to 157.87 r/min,the test parameters and the limited cavitation coefficient all can be satisfied.Some pressure pulse overstep the number required,it can be satisfied after giving air.there is no exceptional phenomena in the running area.The acceptance test results fully satisfy the design ...
出处
《华北水利水电学院学报》
2009年第2期69-72,共4页
North China Institute of Water Conservancy and Hydroelectric Power
