针对烟台经济技术开发区集中供热存在的问题 ,建立了以供水流量和供回水温度为变量的目标方程 ,对其进行了数值计算 ,得出了运行中应采用的最优温度和流量 ,使得运行费用降到最低 ,分析了电价、热价及保温系数对运行费用和供回水温度的影响 In view of the problems existing in central heating of Yantai Economic and Technological Development Zone, a target equation with water supply flow rate and water supply and return water temperature as variables is established. The optimal temperature and flow rate are obtained by numerical calculation. The running cost is reduced to a minimum. The influence of electricity price, heat price and insulation coefficient on running cost and water supply and return temperature is analyzed