首页|Water hammer protection for diversion systems in front of pumps in long-distance water supply projects
Water hammer protection for diversion systems in front of pumps in long-distance water supply projects
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原文链接
国家科技期刊平台
NETL
NSTL
万方数据
维普
For a water supply system with long-distance diversion pipelines,in addition to the water hammer problems that occur beyond pumps,the safety of the water diversion pipeline in front of pumps also deserves attention.In this study,a water hammer protection scheme combined with an overflow surge tank and a regulating valve was developed.A mathematical model of the overflow surge tank was developed,and an analytical formula for the height of the overflow surge tank was derived.Furthermore,a practical water supply project was used to evaluate the feasibility of the combined protection scheme and analyze the sensitivity of valve regulation rules.The results showed that the combined protection scheme effectively reduced the height of the surge tank,lessened the difficulties related to construction,and reduced the necessary financial investment for the project.The two-stage closing rule articulated as fast first and then slow could minimize the overflow volume of the surge tank when the power failure occurred,while the two-stage opening rule articulated as slo w first and then fast could be more conducive to the safety of the water supply system when the pump started up.
国家科技期刊平台
NSTL
万方数据
维普
