溪洛渡水电站地下式厂房排水系统管道水锤特性分析

Analysis on Water Hammer Characteristic of Drainage System in the Underground Powerhouse of Xiluodu Hydropower Station

以溪洛渡水电站左岸地下厂房渗漏排水系统为例,对厂房排水系统的管道水力特性进行了分析,并针对长轴深井泵开停机、泵控阀故障等情形进行了水锤分析和计算,结果表明该系统能够达到设计要求性能并保证开停机水力过渡过程的安全性,但泵控阀关闭过快或故障均能够引起较大的水锤压力。

Taking the leakage drainage system in the ]eft underground powerhouse of Xiluodu Hydropower Station as case study, the pipe hydraulic characteristics of drainage system is analyzed, and the water hammer characteristics of this system occurred in the conditions of the power-on and off of long-shaft deep-well pumps and the failure of pump control valve are also calculated. The results show that the drainage system can meet design requirements and ensures system security during the hydraulic transition process of pumps＂ power-on and off but too fast close or the failure of pump control valve will cause a higher water hammer pressure.