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["Unidad de extraución de aromáticas,,, La bomba de vacío

2018-02-04View Original

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Reply #22018-02-04
Translate the following texts from chinese_simplified to spanish. Return ONLY a valid json array of translated strings in the same order. No markdown formatting, no explanations.
Reply #32018-02-04
芳烃抽提单元,溶剂回收塔顶抽真空泵和塔底泵
Reply #42018-02-04
请问各位,芳烃抽提单元的溶剂回收塔中,塔顶是在负压下操作,那塔顶的真空泵是如何启动的?塔底泵是在负压建立后才启动还是负压建立前启动?塔底泵和普通离心泵启动步骤一样吗?谢谢各位了,初入芳烃行业,还有好多不懂。
Reply #52018-02-06
* 首先你要讲清你的真空泵形式,是水环真空泵、射汽抽气器、射水抽气器等,再根据具体形式进行具体操作。
Reply #62018-02-06
* 开工时,先建立溶剂循环,往抽提塔和回收塔垫溶剂,垫好溶剂后再启溶剂泵建立溶剂冷循环;第二步装置升温,建立溶剂热循环,升温之前需要投用抽真空系统(蒸汽抽气器)建立系统负压,然后再开始升温。也就是说塔底泵是正压启泵的,与普通离心泵没啥区别。
Reply #72018-02-06
* 你说这个问题,正常生产时,回收塔塔底泵切泵时就会遇到了
Reply #82018-02-08
* 回收塔正常生产在负压状态,切泵和普通的切泵有区别吗?谢谢
Reply #92018-02-08
* 嗯嗯,谢谢你啦,明白了~
Reply #102018-03-10
* 灌泵时注意一下,先开出口小阀返塔流程均压,然后再缓慢打开泵的入口阀进行灌泵(个人理解)

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