基于瞬变流模型的长距离污水压力管道水锤风险分析及综合防护  

Water Hammer Risk Analysis and Comprehensive Protection for Long Distance Wastewater Pressurized Pipeline Based on Transient Fluid Model

作　　者：蒋竹荷 李硕[1,2] 王珏 邱顺凡 蒋剑虹 樊佳[1,2,3] JIANG Zhuhe;LI Shuo;WANG Jue;QIU Shunfan;JIANG Jianhong;FAN Jia(China Machinery International Engineering Design and Research Institute Co., Ltd., Changsha 410007, China;Hunan Water Treatment Process and Equipment Engineering Technology Center, Changsha 410007, China;Changsha Innovation Center for Water Treatment Process & Equipment, Changsha 410007, China)

机构地区：[1]中机国际工程设计研究院有限责任公司,湖南长沙410007 [2]湖南省水处理过程与装备工程技术研究中心,湖南长沙410007 [3]长沙市水处理过程与装备技术创新中心,湖南长沙410007

出　　处：《净水技术》2023年第S01期234-239,共6页Water Purification Technology

基　　金：湖南省高新技术产业科技创新引领计划项目(2022GK4062)

摘　　要：水锤现象危害大、防护要求高,文章选取华中地区某大型城市主城区长距离污水压力管道系统为研究对象,明确了污水压力管道系统水锤模拟的5点要求,并结合项目特点,比对了3款主流的水锤数值模型软件,建立了一套基于弹性水锤理论、波特性法求解的水锤模型。基于该模型,对现状管道系统进行了水力评估,定量评估了现状系统事故停泵最不利工况的水锤风险。经4种典型水锤防护优化方案的模拟比选,确定了一套能够保障系统事故停泵最不利工况下仍可安全运行的水锤综合防护措施方案。The water hammer phenomenon is very harmful and requires high protection.This paper selected the long distance wastewater pressurized pipeline system in the main urban area of a large city in Central China as the research object.Clarified the five point requirements for water hammer simulation of wastewater pressurized piping system,combined with the characteristics of the project,compared three mainstream water hammer numerical model software,and established a water hammer model based on elastic water hammer theory and wave characteristic method.Based on this model,the hydraulic evaluation of the curent pipeline system was carried out,and the water hammer risk of the most unfavorable working condition of the accidental pump shut down of the current system was quantitatively evaluated.Through the simulation comparison and selection of four typical water hammer protection optimization schemes,a set of water hammer comprehensive protection measure schemes that could ensure the safe operation of the system under the most unfavorable working conditions when the pump was shut down in an accident was determined.

关 键 词：长距离污水压力管道 水锤 综合防护 瞬变流 水力模型 

分 类 号：TV672.2[水利工程—水利水电工程]