汕尾供水工程输水管道水力计算及调流阀的参数选定  

Hydraulic Calculation of Pipeline and Parameter Selection of Regulating Valve in Shanwei Water Supply Project

作　　者：秦鑫 冯伟添 QING Xin;FENG Weitian(Guangdong Hydropower Planning&Design Institute Co.,Ltd.,Guangzhou 510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《广东水利水电》2023年第8期11-16,40,共7页Guangdong Water Resources and Hydropower

摘　　要：文章介绍了汕尾供水工程的输水管道水力计算过程,在此基础上对输水管线末端的调流阀的流量、过阀水损进行计算,最终确定调流阀的合理运行方案。计算结果表明,在丘陵平原地区,尽管输水管线的弯头及附属建筑物较多,汕尾供水工程初步计算可取沿程水头损失的15%作为局部水头损失的值。通过计算调流阀在不同工况下需要的过阀水损,得到对应的阀门开度,可以确定其流量-开度关系曲线,使调流阀在工程运行期间发挥合理的调流、调压作用。本文章可以为同类型引调水工程及其调流阀的设计提供参考。This paper introduces the hydraulic calculation process of the water transmission pipeline of Shanwei water supply project.On this basis,the flow rate and water loss of the regulating valve at the end of the water transmission pipe line are calculated,and the reasonable operation scheme of the regulating valve is finally determined.The results show that in the hilly plain area,15%of the head loss along the pipeline can be taken as the local head loss in the preliminary calculation of Shanwei water supply project,although there are more elbows and ancillary buildings.By calculating the water loss required by the regulating valve in different working conditions,the corresponding valve opening can be obtained,and the flow-opening relationship curve can be determined,so that the regulating valve can play a reasonable role in regulating flow and pressure during the operation of the project.This paper can provide reference for the design of the same type water diversion project and its regulating valve.

关 键 词：供水工程 水力计算 调流阀 设计流量 过阀水损 

分 类 号：TV672.2[水利工程—水利水电工程]