It is of great significance to analyze the characteristics of pipe water hammer and take effective protective measures to ensure the reliability and safety of water transmission projects.In this paper,taking a water diversion project in Yunnan Province as an example,by constructing a numerical simulation model of water hammer pressure in a diversion and water supply pipeline,the characteristics of water hammer pressure changes at the end of the valve are analyzed,and the ef-fectiveness of water hammer protection measures is evaluated.The results show that when the valve at the end of the pipeline is suddenly closed without water hammer protection measures,the water hammer pressure gradually rises along the line,and the water hammer high pressure is easily generated at the end.The water hammer protection measures such as linear closure of the end valve,setting of overpressure relief valve and setting of pressure regulator can effectively reduce the water hammer pressure at the end of the pipeline and ensure the safe operation of the water transmission system.
关键词
倒虹吸/水锤压力数值模拟/水锤防护/关阀水锤
Key words
Siphon pipeline/Numerical simulation of water-hammer/Water hammer protec-tion/Valve-closure water hammer
维普
万方数据