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Low-temperature methanol washing

2009-04-17View Original

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Is washing required before the combined operation of low-temperature methanol washing? Do I need to wash them one by one?
Reply #22009-04-17
If there’s plenty of water and time, it’s best to wash it, hehe
Reply #32009-04-17
This post was last edited by MapleRed on 2009-5-30 00:01. If time permits, it can be washed~~! It’s not a big deal if it’s not washed either; it depends on how busy things are with work
Reply #42009-04-17
This post was last edited by MapleLeafRed on 2009-5-30 00:01. Washing can be carried out simultaneously with water transportation! Time and effort saved! :lol ;P :victory:
Reply #52009-04-17
This post was last edited by Fengye Hong on 2009-5-30 00:01. Before starting the water-driven operation, it is necessary to clean out any debris inside the equipment; each piece of equipment must be purged with nitrogen. There should be no iron scraps, welding slag, iron pieces, or any other kind of debris inside. Larger debris is removed by cleaning, while smaller debris is removed through purging. The washing process involves hot alkaline cleaning to remove oil residues from the equipment; the alkalinity level is 2-3%, and after 24 hours, the area is washed with clean water before methanol can be used. :Call: Please point out any unreasonable aspects.
Reply #62009-05-29
This post was last edited by MapleRed on 2009-5-30 00:02. Washing it with water is of course necessary. . Especially driving originally. All liquid systems need to be washed. . The purpose is to remove dirt. Prevent methanol contamination. and cause problems in power equipment such as pumps. The impeller is blocked or damaged by iron slag. . It causes blockages in the heat exchanger. . It affects mass and heat transfer. .
Reply #72009-05-29
The tower doesn’t need to be washed, right? It’s already been cleaned before installation, as the rear flange and connections are all sealed. So water intermodal transport is sufficient.
Reply #82009-05-30
What was said on the 5th floor is detailed, and I fully agree. Before putting the NHD purification system into operation in our facility, cleaning, purging, water washing, alkali washing, and further cleaning are carried out. There are requirements from the design firm, and there are also requirements from the solvent manufacturers.

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