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The closing rule of the ball valve for water hammer protection
The author: Time:2019/9/27

      针对舰船纵倾均衡系统中球阀控制管路在突然出现关阀时产生剧烈水击的问题,通过设计搭建球阀的实验系统,对比实验数据验证了CFD应用于水击计算的可行性。
      而且通过分析CFD计算结果与实验数据可知:当关球阀的时长一定时,采用先快后慢的两阶段线性关阀能有效抑制球阀关闭后的压力振荡情况,且水击压强峰值出现时刻提前,但是快关阶段角度太大时,反而会增大关阀过程水击压强;而当快关阶段角度较小时,则造成水击压强抑制效果不佳,就这个研究来说,以快慢速比1.6左右且快关角度在45%附近时水击防护效果较好。

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