双热源联网运行的管网水力特性分析及运行调节

Hydraulic Characteristic Analysis and Operation Adjustment of Pipeline Network in Networked Operation of Dual Heat Sources

以太原市南部地区国锦热源、嘉节热源为研究对象,针对2021年供暖初期嘉节热源供热能不足且出现极端天气的情况,在无新建热源的条件下,采用水力分析软件平台Geopipe进行水力计算,以验证双热源联网运行的可行性,从而缓解供热初期热负荷紧张的局面,并结合运行工况进行了对比分析,得出南部热网中继泵站需通过调节循环泵转速从而使得供水压力降低0.1 MPa左右,以匹配嘉节热网整体偏低的水力运行工况;同时针对通过量调节末端热力站无法满足资用压头的情况提出了解决办法。

Taking the Guojin heat source and Jiajie heat source in the south of Taiyuan as the research object,aiming at the situation of insufficient heating energy and extreme weather of Jiajie heat source in the early stage of heating in 2021,Geopipe,a hydraulic analysis software platform,is adopted to carry out hydraulic calculation in order to verify the feasibility of double-heat source network operation.So as to alleviate the initial heat load tension situation.Based on the comparative analysis of operating conditions,it is concluded that the relay pump station of the southern heat network should reduce the water supply pressure by about 0.1 MPa by adjusting the rotating speed of the circulating pump,so as to match the overall low hydraulic operating conditions of the Jiajie heat network.At the same time,the solution is put forward for the situation that the terminal thermal station cannot meet the requirement of the available differential pressure.