摘要
结合我国东北地区某长输管线供水工程实例,针对多起伏、小高差的长距离供水系统水锤防护问题,对事故停泵水锤防护效果模拟分析。结果表明,在多起伏、小高差的长距离供水系统工程中,以两阶段缓闭止回阀和气压罐为基础防护设备,在管路沿线综合设置局部小口径空气阀和真空吸气阀的组合形式,能够有效缓解局部高点出现的负压现象,水锤防护综合效果最优。
Based on the water hammer prevention issue of long distance water supply system with many ups and downs and small elevation difference,the prevention effect of water hammer in pumping accident was simulated and analyzed with a case of a long distance water transmission pipeline project in Northeastern China.The results showed that for the long distance water supply project,the combined form of taking two-stage slow close check valve and air pressure tank protective equipment as basic protective equipment,comprehensively setting local small-caliber air valve and vacuum suction valve comprehensively along the pipeline could effectively alleviate the phenomenon of local high negative pressure,achieving an optimum comprehensive effect of water hammer prevention.
作者
郑航桅
孙国胜
郑成志
高金良
Zheng Hangwei;Sun Guosheng;Zheng Chengzhi;Gao Jinliang(Guangdong Yuegang Water Supply Co.,Ltd.,Shenzhen 518000,China;Guangdong Water Investment Co.,Ltd.,Shenzhen 518000,China;School of Environment,Harbin Institute of Technology,Harbin 150090,China)
出处
《供水技术》
2022年第4期34-38,共5页
Water Technology
基金
国家重点研发计划(2018YFC0406201-3)
国家自然基金(51778178、51978203)
黑龙江省自然科学基金(LH2019E044)。
关键词
长距离输水
水锤防护
事故停泵
多起伏
小高差
空气阀
long-distance water delivery
water hammer prevention
pumping accident
ups and downs
small elevation difference
air valve
