考虑故障工况限额供热的环状供热管网初始流量分配方法  

Method of initial flow distribution for looped heating network considering limited heating under fault conditions

作　　者：王萌[1,2] 王芃 汪怡心[3] 马旭冉 罗琤 Wang Meng;Wang Peng;Wang Yixin;Ma Xuran;Luo Cheng(Harbin Institute of Technology,Harbin;Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology,Ministry of Industry and Information Technology,Harbin;Tarim Oilfield Company,CNPC,Korla;China Urban Construction Design&Research Institute Co.,Ltd.,Beijing)

机构地区：[1]哈尔滨工业大学,黑龙江省哈尔滨市150001 [2]寒地城乡人居环境科学与技术工业和信息化部重点实验室,黑龙江省哈尔滨市150001 [3]中国石油天然气股份有限公司塔里木油田分公司,库尔勒 [4]中国城市建设研究院有限公司,北京

出　　处：《暖通空调》2024年第12期134-139,共6页Heating Ventilating & Air Conditioning

基　　金：住房和城乡建设部研究开发项目(编号:2022-K-112)。

摘　　要：根据故障工况的管网拓扑结构和限额供热要求,建立了以最小初投资为目标的故障工况优化模型,采用既约梯度法求解,综合正常工况优化模型的结果得到了初始流量分配的优化值。通过案例计算,与最小初投资法、最小平方和法和均分法进行对比分析,结果表明:本文方法的故障工况平均流量比相较于其他3种方法高20%~40%,限额供热达成率为83.3%,而其他3种方法仅为33.3%;但在输送能力提升的同时,该方法的管道材料消耗量比其他方法多25%~30%。According to the pipe network topology structure under fault conditions and the limited heating requirements,this paper establishes an optimization model for fault conditions with the goal of minimizing initial investment.The reduced gradient method is used for solving.The optimized value of the initial flow distribution is obtained by integrating the results of the normal condition optimization model.Through case calculations and comparative analysis with the minimum initial investment method,the minimum sum of squares method,and the equal sharing method,the results show that the average flow ratio under fault conditions of the method in this paper is 20%to 40%higher than that of the other three methods.The achievement rate of limited heating is 83.3%,while that of the other three methods is only 33.3%.However,while improving the transportation capacity,the consumption of pipeline materials of this method is 25%to 30%more than that of other methods.

关 键 词：供热管网 初始流量分配 故障工况 限额供热 最小生成树 最小初投资 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]