环状热网泄漏检测模型研究  

Study on Leakage Detection Model for Ring-shaped Heat-supply Network

作　　者：高扬[1] 李彪[1] 曹慧哲[1] 韩冲[1] 周志刚[1] 

机构地区：[1]哈尔滨工业大学市政与环境工程学院,黑龙江哈尔滨150090

出　　处：《煤气与热力》2015年第4期8-12,共5页Gas & Heat

基　　金：国家自然科学基金资助项目(51208158);高等学校博士学科点专项科研基金资助项目(20112302120046);2013年度黑龙江省博士后科研启动金资助(LBH-Q13085)

摘　　要：基于图论理论、变流理论及贝叶斯算法建立环状热网泄漏工况水力模型、预测误差模型。在模拟管网泄漏工况时,将泄漏归结在节点处,将泄漏流量视为该节点流量的一部分,泄漏程度用泄漏面积反映。将由热网泄漏工况水力模型得到的热网泄漏数据库数据作为测量数据,将水力模型的模拟结果作为预测数据,采用预测误差模型计算预测数据的最优估计概率,指导确定泄漏位置。The hydraulic model and prediction error model for leakage condition of ring-shaped heatsupply network are built based on the graph theory, the variable flow theory and Bayesian algorithm. When the leakage accident conditions of pipe network is simula- ted, assumed that the leakage occurs at or near node, the leakage discharge is regarded as a part of the node discharge, the extent of leakage is expressed as the leakage area. The data in the heat-supply network leakage database obtained from the hydraulic model for leakage condition of ring-shaped heat-supply network are used as the measured data, the simulation results the hydraulic model are used as the predicted data, and the optimal prediction probability of the simulation results is calculated by the prediction error model to help to determine the leakage position.

关 键 词：环状热网 慢变流 泄漏检测模型 贝叶斯算法 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]