某冷媒水管网系统泄漏诊断  

Leakage Diagnosis of a Refrigerant Water Pipeline Network System

作　　者：周炫 马军[3] 舒星宇[2] 罗立晟 徐新华 谢军龙[1] ZHOU Xuan;MA Jun;SHU Xing-yu;LUO Li-sheng;XU Xin-hua;XIE Jun-long(School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Dept.of Building Environment and Energy Application,Huazhong University of Science and Technology,Wuhan 430074,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074 [2]华中科技大学建筑环境与能源应用工程系,武汉430074 [3]中国舰船研究设计中心,武汉430064

出　　处：《船海工程》2025年第2期39-45,共7页Ship & Ocean Engineering

基　　金：国家自然科学基金(52378099)。

摘　　要：针对某冷媒水管网系统的泄漏问题,提出一种应用压力变化率分析法进行泄漏诊断及简单定位的方法。通过模拟管网在不同泄漏点及不同泄漏量下的运行情况,获取不同泄漏工况下管网各节点(支路两端)的压力变化率,分析结果表明,当某支路发生泄漏,该泄漏支路的供水端或回水端的测压点的压力变化率最大,由此可以确定泄漏点所在的支路。压力变化率的值与距泄漏点的远近、管道尺寸、泄漏量大小都有关。3%可以作为该管网测压点的压力变化率的阈值,用于判断泄漏的发生。A method for leakage diagnosis and simple localization in a refrigerant water pipeline network system based on pressure variation rate analysis was proposed.By simulating the operation of the network under different leakage points and leakage volumes,the pressure variation rates at various nodes(both ends of each branch)under different leakage conditions were obtained.The analysis results indicated that when a branch experiences leakage,the pressure variation rate at the measuring point on the supply or return end of the leaking branch is the highest.This enables the identification of the branch where the leakage point is located.The pressure variation rate is influenced by factors such as the distance from the leakage point,pipe size,and leakage volume.A threshold of 3%for the pressure variation rate at measuring points can be used to determine the occurrence of a leak in the network.

关 键 词：冷媒水系统 泄漏诊断 泄漏特性 压力变化率分析 

分 类 号：U664.8[交通运输工程—船舶及航道工程]