长距离供水工程单向塔设置分析

Study on water hammer control by one-way surge tank in long-distance water-supply project

单向塔作为长距离有压供水工程重要的水锤防护措施,其合理布置涉及到工程运行安全。本文以水锤分析为基础,在确保管道运行不出现负压的前提下,构建了单向塔布置的理论分析和数值优化总体框架,明确了多个串联单向塔的设置位置与高度的关系,提出了不同工况下长距离供水管线中设置单向塔应满足的通用准则,同时结合工程实例,通过数值仿真进行了单向塔布置方案的优化,为长距离供水管道中单向塔的合理布置提供了科学依据。

Arrangement of one-way surge tank that is an effective measure for water hammer control is crucial to the safety of long-distance water-supply project.This paper establishes a general framework of theoretical analysis and numerical optimization for the tank arrangement by using water hammer analysis with a criterion of avoiding negative pressure during operation.A general rule of arrangement on long-distance water-supply pipeline under different conditions is proposed,and the relationship between tank location and tank height is demonstrated.Application of numerical simulation aiming at arrangement optimization to a practical project suggests that the proposed framework provides an effective approach for the design of one-way surge tank.