凝汽器喉部阻力对凝汽器面积的影响

Effect of Exhaust Resistance of Condenser Throat on Thermodynamic Characteristics

随着机组的大型化,凝汽器喉部结构复杂化,凝汽器实际性能与按HEI规范预测的性能越发地呈现出不同程度的偏离。预测并修订这一系列偏差,对合理计算凝汽器面积,选取合理的冷端设计边界,以及降低机组运行热耗(煤耗)有重要的指导意义。

With the development of large-scale units and the complexity of condenser throat structure,the actual performance of condenser deviates from the performance predicted according to HEI specification in varying degrees.Prediction and revision of these deviations have important guiding significance for reasonable control of condenser area,selection of reasonable design boundary of cold end and reduction of heat consumption(coal consumption)in unit operation.