What work needs to be done when the sieve plate distillation tower is shut down for maintenance?
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After the system is shut down, what maintenance work should be done before the distillation tower is started?
When boiling the tower, open the manhole to check the trays, especially whether the trays at the top of the tower and the tower kettle are turned over, and whether the sieve holes are blocked. Clean the tower internals in the tower kettle, check the missing fasteners of the trays, and check whether the reboiler is scaled. Press and check for leaks. This post was last edited by CHEN333 at 2009-2-22 11:30 ]
LZ should search it ~ there is a lot of information in this area! I will lend you flowers to offer to Buddha: loveliness: Packing Tower Maintenance and Inspection Regulations" http://bbs.hcbbs.com/viewthread.php?tid=230024&highlight=%CC%EE%C1%CF%CB%FE%2B%BC%EC%D0%DE The hazards and prevention of FeS spontaneous combustion in the maintenance of packed towers" http://bbs.hcbbs.com/viewthread.php?tid=125884&highlight=%CC%EE%C1%CF%CB%FE%2B%BC%EC%D0%DE This post was last edited by Chuangxin Filler on 2009-2-22 13:48 ]
For the sieve plate distillation tower, the most important thing is to ensure that the internal parts are fastened. Whether the sieve plate is tilted, which may easily cause local flooding or leakage. Whether the sieve plate holes are blocked, which affects the distillation process. Clean the dirt formed on the internal parts of the tower.
1. Check the looseness of the tray and tighten 2. Check the tray for corrosion 3. Check the coking condition of the tray and flush with high-pressure water gun 4. Full tower steam tower 48 hours 5. Nitrogen seal leak test
1. Disassemble the trays and clean them. 2. Clean the tower walls.
http://bbs.hcbbs.com/viewthread.php?tid=262246&highlight=%BC%EC%D0%DE http://bbs.hcbbs.com/search.php?searchid=3504&orderby=lastpost&ascdesc=desc&searchsubmit=yes There are a lot of discussions about this in the forum