【摘要】 600 MW直接空冷机组在冬季运行有其特殊性,目前仍在经验积累和探索中。根据已有的运行可以总结出应注意的几点:空冷凝汽器散热管束表面温差,凝结水的过冷度和其在运行中的控制,汽轮机冬季运行的最低背压,真空抽气口温度和运行机组冬季最低负荷的确定。更多还原

【Abstract】 600 MW direct air-cooling units have the special features in winter operation,whose experiences are under accumulation and inquisition.According to the existing operation several decision points of attention can be summarized as follows: surface temperature difference on the air cooling condenser dissipation piping bundles,excessive coldness of condensate and its control during operation;minimum back pressure of the turbine during winter operation;temperature at the vacuum extraction outlet and minimum load of the operating unit during the winter.更多还原