汽轮机凝汽器真空应达值的确定方法及其应用

凝汽器真空应达值通常是通过查取制造厂家提供的凝汽器特性曲线来得到，但这种方法只适用于冷却水流量，汽轮机排汽焓均为设计值的工况。针对实际运行的凝汽器，暂出一种确定凝汽器真空应达值的方法，并给出了这种方法在汽轮机凝汽器运行状态分析中的应用，为凝汽器真空降低故障的诊断，奠定了一定的基础。

The Determining Method of Norm Vacuum of Condenser for Steam Turbine and Its Application

The norm vacuum of condenser is usually obtained from the characteristic curve given by the manufactory. But the method is only fit for the condition of that both of the flux of cooling water and exhaust steam enthalpy of steam turbine are maintained at designed valves. In this paper, a method to determine norm vacuum of operating condenser is proposed, and its application in analyzing the operating state of condenser for steam turbine is given. The studying results fall foundations for diagnosing the faults of low vacuum for condenser.