A new cleaning methods and automatic cleaning system for the direct air-cooling unit in thermal power plants was described.

介绍了火电厂直接空冷机组新清洗方式及其自动清洗系统。

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Through tests and exploration, the cause of vacuum fluctuation in summer was found, in the direct air cooling unit, the output of vacuum pump had obvious influence on the variation of vacuum.

经过试验和探索，找到了夏季真空波动的原因，在直接空冷机组中，真空泵出力对真空的变化有明显的影响。

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Antifreezing is always a notable problem in the start-up in winter, shutdown process and low load operation period of air cooling condenser of large size direct air cooling unit.

大型直接空冷机组空冷凝汽器在冬季启动、停机过程以及低负荷运行阶段的防冻问题尤为突出。

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