Applying frequency governor to bottom pump of evaporation tower and feed pump of furnace, the result showed that it is the effective way to improve the automatic level in clay unit.

通过蒸发塔底泵和护进料泵两系统采用变频调速器的数据分析表明，它是提高白土精制装置自动化水平的有效途径。

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Because the packings on the second plate were blocked by polymer, water from the reflux pump condensed and entered into the bottom of the tower to cause the cavitation of the pump.

汽油分馏塔第二层塔填料堵塞，全塔气-液传热传质状况恶化，使水降至塔釜引起“暴釜”，最终导致急冷油泵气蚀不上量。

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After analyzing the working characteristics and fault forms of residuum pump at the bottom of vacuum tower of distillation unit, some technical measures are gradually found and used in practice.

分析了减压塔底渣油泵工作特点和故障表现，针对渣油泵的工作特点和频繁出现的故障表现，逐步摸索出一些技术措施并在实际工作中实施。

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