水泵调节方法与节能的研究

本文叙述了水泵运行中为何要进行调节、节流调节和变速调节的理论方法和不同调节方法的优缺点，重点分析了变速调节的节能原理及调速范围，并指出了变速调节中易出现的错误，对有些文献中关于相似抛物线的混淆之处进行了讨论，提出了不同看法，并用一实例对两种调节方法进行了分析比较．

RESEARCH ON THE METHOD OF PUMP ADJUSTMENT AND ENERGY SAVING

This paper puts forward the reason why adjustment is unavoidable in the course of pump operation. Principles of throttle adjustment and of speed-changing adjustment are presented.The emphasis is put on the energy-saving principle and the range of the speed-changing ad-justment. The mistakes which are liable to occur during the speed-changing adjustment are pointed out. Confusion caused by similarity parabola often found in some references is dis-cussed. The comparison between the two adjusting methods and the analysis of them are made.