智能供水管网的内联闭式水力发电系统的研发  

Development of Inline Hydropower Harnessing Device to Supply Power to the Water Intelligent Network

作　　者：杨洪兴[1] 沈志成 姚尧 曹炳豪 谢景耀 李立楚 YANG Hong-xing;SHEN Zhi-cheng;YAO Yao;CHO P H;TSE K Y;LEE L C(Department of Building Environment and Energy Engineering,the Hong Kong Polytechnic University,Hong Kong,China;Water Supplies Department,the Government of the Hong Kong Special Administrative Region,Hong Kong,China)

机构地区：[1]香港理工大学建筑环境及能源工程学系,中国香港 [2]香港特别行政区政府水务署,中国香港

出　　处：《中国给水排水》2024年第6期97-102,共6页China Water & Wastewater

摘　　要：为更好地监测管道泄漏和控制水压,智能供水管网管理系统(简称“智管网”)正逐步应用于城市供水管网。传统的供水监测仪表和传感器多采用蓄电池供电,由于电池寿命与容量有限,使得在实时监测模式下需要经常更换电池,造成经济与人力的耗费。通过数值模拟研究和实验研发了一种结构简单、安装方便的内联闭式水力发电系统,消耗有限的水头便可为“智管网”感应和监测设备及数据传输装置提供可靠的电力,通过提高站点之间的通信频次来保障实时监控,同时避免频繁地更换电池。此外,该管道水轮机通过管道内的喇叭口与挡块设计来实现双向流发电。介绍了该系统的工作设计原理和仿真实验研究结果,以及实测的内联闭式水力发电运行数据。实验结果表明,该系统能够可靠地运行,可为下一步的研发提供宝贵的理论和应用基础。Water Intelligent Network(WIN)is being progressively adopted for better pipe leakage detection and water pressure management in urban water distribution systems.Traditionally,all the data monitoring meters and sensors of the WIN system are powered by chemical batteries,and the limited life and capacity of the battery makes it necessary to replace the battery frequently in the real-time monitoring mode,resulting in economic and manpower cost consumption.An inline hydropower harnessing device(IHHD)with the simple structure and convenient installation was developed.The IHHD only consumes a small part of the hydraulic head in water pipes to independently provide power to the sensing and monitoring equipment and data transmission devices of WIN,so that the frequency of data transmission to the master station can be greatly increased to facilitate real-time monitoring of the water supply network without frequent change of batteries.In addition,the blocks and bidirectional bell mouth design inside the inline turbine system make it capable of operating under bidirectional flows.This paper presents the working principle of the IHHD system and the results of the simulations and experiments of the development,as well as data gathered from site trial of the IHHDs inside live fresh water supply pipelines.The results demonstrate that the system can operate reliably as well as provide a valuable theory and utilization basis for the next stage research and development.

关 键 词：智能供水管网 蓄电池 内联闭式水力发电 双向流发电 

分 类 号：TU991[建筑科学—市政工程]