摘要
长距离高扬程调水工程中水锤压力是影响输水系统安全的重要因素,尤其在泵站突然断电时产生的停泵水锤危害最为严重。以山西某调水工程为研究背景,运用Bentley Hammer软件建立事故停泵工况下的水锤计算模型,采用特征线法分别对不同工况下的停泵水锤进行计算分析。计算结果表明:对于长距离高扬程调水工程采用“复合式排气阀+泵后两阶段关闭止回阀+水力空气罐”等措施可以有效消除事故停泵引起的弥合水锤,保证供水系统安全运行;通过优化输水方案,可以简化水锤防护措施,提高供水安全性和可靠性。
Water hammer is one of the most important factors for safety operation of long distance and high pressure water transfer system,especially in the condition of pump stopping in the pump station.Taking the water transfer project in ShanXi as an example,computation analysis of pump-stopping water hammer was made based on method of characteristics in different conditions using Bentley Hammer software.The result indicates that it is an effective protection to prevent water hammer disaster through installing air valve,slow closing check valve and hydraulic air tank;according to optimize water transfer system,simplifying water hammer protection measure to improve safety and reliability of water supply.
作者
赵令晖
苏林山
ZHAO Linghui;SU Linshan(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450000,China)
出处
《给水排水》
CSCD
北大核心
2022年第S02期501-506,共6页
Water & Wastewater Engineering
关键词
长距离调水
特征线法
停泵水锤
水锤防护
Long distance water transfer
Method of characteristics
Pump-stopping water hammer
Protection of water hammer
作者简介
通信作者:赵令晖,女,1989年出生,河南郑州人,硕士,工程师。主要研究方向为长距离引调水工程设计与研究。通讯处:450000河南省郑州市金水区金水路109号黄河勘测规划设计研究院有限公司,E-mail:1056441999@qq.com
