摘要
探讨不锈钢给水管卡箍连接件内T形腔的水力停留时间问题,重点分析了不同管径、不同流速对其停留时间的影响。采用标准k-ε模型进行了数值模拟,研究了DN50、DN100和DN150管卡箍连接件附近的流场分布、T形腔内水的更新过程和排出时间。模拟结果表明,提高给水流速可以加快T形腔内水的更新速率,不同管径的管道在相同给水流速下T形腔内水的排出时间有所不同,管径和流速是影响水更新速率的关键因素。为卡箍连接在供水系统中的应用提供了重要的理论依据和技术支持,论证了卡箍连接用于供水管网的水质安全性。
This article discusses the hydraulic retention time in T-shaped chambers of stainless steel pipes’clamp connectors.It focuses on analyzing the impact of different pipe diameters and flow velocities on their hydraulic retention time.A standard k-εmodel is used to simulate the flow field distribution at clamp connections in DN50,DN100 and DN150 water pipes,and the renewal process of water in the T-shaped chambers,as well as the discharge time.The results indicate that increasing the water flow velocity can accelerate the renewal rate of water in T-shaped chambers.The discharge time of water in T-shaped chambers varies with the pipe diameter at the same water flow velocity.Pipe diameter and flow velocity are the key factors affecting the water renewal rate.This research provides important theoretical foundations and technical support for the application of clamp connections in water supply system.It demonstrates the water quality safety of using clamp connections for water supply networks.
作者
杨敏
刘俊
贺忠臣
李斯源
孟宪虎
YANG Min;LIU Jun;HE Zhongchen;LI Siyuan;MENG Xianhu(The Architecture Design&Research Institute Co.,Ltd.of Southeast University,Nanjing 210096,China;Zhongxin Green Pipe Technology Co.,Ltd.,Nanjing 211121,China)
出处
《给水排水》
CSCD
北大核心
2024年第10期105-109,共5页
Water & Wastewater Engineering
关键词
卡箍连接
水力停留时间
数值模拟
Clamp connections
Hydraulic retention time
Numerical simulation
