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我厂第二套常减压蒸馏装置在一九八一年三、四月份大检修期间,进行了以节能为重点的技术改造,并于同年四月十九日一次开车成功,至今已正常运转近两年。在这次改造中,除了以换热流程优化提高拔头油入
The second atmospheric distillation unit of our factory was undergoing major maintenance with energy saving during the overhaul in March and April 1981 and was successfully started on April 19 of the same year and has operated normally so far Nearly two years. In this transformation, in addition to optimizing the heat transfer process to pull the first oil into