论文部分内容阅读
水电站的引水道较长时,常需设置昂贵和复杂的调压井结构.近一二十年来国内外都在研究不设调压井的问题.但这时不仅应解决水锤压力和机组飞逸问题,而且要确定机组的过渡过程和调节质量.另外,也要研究某些水电站在泄洪时尾水振荡对机组运行的影响. 本文较完整地给出调节过程的框图和各环节的控制方程,讨论了小波稳定的判别条件和过渡过程的确定,并讨论了各种因素对调节质量的影响.然后给出差分计算方法.文章最后指出在不少工程中有可能不用调压井并提出对进一步研究工作的建议.
Hydropower stations with long diversion channels often need to set up expensive and complex surge tank structure.For nearly a decade the problem of no surge tank has been studied at home and abroad.But this time not only should solve the water hammer pressure and crew fly But also to determine the unit’s transitional process and adjust the quality.In addition, we must also study some of the hydropower station in the discharge of tail water oscillation on the unit operation.This paper gives a more complete set of adjustment process and the control equation , Discussing the condition of determining the stability of the wavelet and the determination of the transition process, and discussing the influence of various factors on the quality of the adjustment, and then give the difference calculation method.Finally, it is pointed out that in many projects, Further research work proposal.