事故工况限额供热环状热网水力工况研究

Study on Hydraulic Regime of Ring-shaped Heat-supply Network with Quota Heating under Accident Condition

结合工程实例,建立管网水力工况模型并进行水力工况分析。对处于不同位置的管段发生事故时管网流量变化规律进行预测研究,经计算获得管网限额供热时最大限额流量系数,以及各事故工况下热力站入口阀门相对开度。

Combined with an engineering exam ple, the model for the hydraulic regime of heatsupply network is built, and the hydraulic regime is analyzed. The change law of flow rate in heatsupply network during accident of pipe sections located at different lo cations is predicted. The maximum quota flow coeffi cient of heatsupply network during quota heating as well as relative opening degree of the valve at inlet of substation under different accident conditions are ob tained throuzh calculation.