抽水装置模型换算问题的探讨

兴建大型泵站在我国已蓬勃发展,但如何使其设计合理和运行经济以节约投资和节省能耗则是当前一个很重要的问题,而进行模型试验及其换算又成为完成这项使命的先决条件。本文拟从模型换算的基本理论出发,参照国外推荐的资料,结合我们多次进行水泵装置模型试验的经验,用简明的公式及图表,提出一种较为实用而又易于被忽视的水泵装置性能和提出允许吸上真空高度的换算问题以及管道优化选择的方法,可能对泵站设计和改造工作有所俾益。

An Inquiry into the Problem of Model Conversion of Pumping Intallation

A large scale pumping station construction in our country urgently needs model testing and its conversion so that rational design and economic operation of those stations can be ensured.Based on the theory of model conversion, relevant foreign literatures and our model testing practice, a practical and easy method together with diagrams and tables for conversing performance of pumping installations, net positive suction height(NPSH)and optimal pipe diameter selection is provided in the paper. It may be helpful to the design and renovation of pumping stations.