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2020-06-16View Original

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Reply #22020-06-17
继续翻译
Reply #32020-06-18
无氟,腐蚀为坑点,数量很少只入口管口处有几个其他地方没事
Reply #42020-06-19
管束有防腐蚀镀层吗?碳钢管束应该有镀层,是否是镀层施工存在瑕疵导致腐蚀
Reply #52020-06-24
你们那边化验三价铁离子与PH值吗
Reply #62020-06-25
有镀层,是否有瑕疵就不知道了
Reply #72020-06-25
平时只化验排水的PH和COD和氨氮
Reply #82020-06-25
你们那边三价铁离子浓度和PH多少,是否超过指标值
Reply #92020-06-26
尝试将黑色残余物送去化验室用马弗炉灼烧看灰分多少灰分少那黑色的残余物基本就是结焦了再分析高换的工况有没有导致结焦的倾向
Reply #102020-06-29
楼主按照你的描述基本排除了盐腐蚀空冷里面黑色结焦物有可能是重芳烃不知道你是什么加氢原料怎么样空冷出口温度达到到重芳烃的凝点重芳烃就凝结了另外空冷流速的计算你根据循环氢量和冷氢量还有防喘振量转化成实际状态下的流速乘以空冷管数和每根冷却管的截面积就行了注意管程数如果还有疑问私信我
Reply #112020-09-12
楼主,按照你的描述,基本排除了盐腐蚀。空冷里面的黑色结焦物有可能是重芳烃,不知道你是什么加氢,原料怎么样,空冷的出口温度达到的重芳烃的凝点,重芳烃就凝结了。另外空冷流速的计算你根据循环氢量和 冷氢量还有防喘振量,转化成实际状态下的流速,乘以1.05,除以冷却管数和每根冷却管的截面积就行了,注意管程数。如果还有疑问,私信我。

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