Precautions for the maintenance of tower equipment
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What are the precautions for heroes from various fields when maintaining tower-type equipment?
Could you please tell me what are the main corrosion areas in the pipelines used for processing high-sulfur crude oil in coking processes?
1. After the trays are removed, they need to be cleaned; the bolts used to secure the trays should be collected and not discarded. 2. After removing the trays, the tower walls must be cleaned as well. 3. If the medium is corrosive, the inner walls of the tower should be inspected for signs of corrosion. 4. When installing the trays, some of them, such as guide trays, have a specific orientation, so care must be taken to ensure they are installed in the correct direction； The bolts securing the tray should be tightened
\"Maintenance and Repair Procedures for Packed Towers\" http://bbs.hcbbs.com/viewthread.php?tid=230024&highlight=%CC%EE%C1%CF%CB%FE%2B%BC%EC%D0%DE http://bbs.hcbbs.com/viewthread.php?tid=192755&highlight=%CC%EE%C1%CF%CB%FE%2B%BC%EC%D0%DE The Hazards of FeS Spontaneous Combustion during Packed Tower Maintenance and Prevention Measures\" http://bbs.hcbbs.com/viewthread.php?tid=125884&highlight=%CC%EE%C1%CF%CB%FE%2B%BC%EC%D0%DE
If the material being processed contains sulfur, care must be taken after opening the manhole to avoid the issue of iron sulfide forming naturally; it is best to carry out alkali washing prior to opening the manhole if necessary, in order to prevent the formation of iron sulfide； When opening an access hatch, be careful to do so from top to bottom. Ventilate after opening the manhole ； Analysis should be conducted before entering to prevent personal injury from opening a skylight. People are inspecting the components inside the tower. Check for the absence of floating valves on the trays, as well as any corrosion inside the tower, corrosion at welds, and corrosion of the foam breakers
:The handshake description is extremely detailed, which makes it possible to assign tasks more effectively; thanks to the original poster for their extensive experience. Because explosions have occurred in dry desulfurization towers before; if ferrous sulfide is detected in a timely manner, things might be better: lol
Before carrying out maintenance, a detailed plan must first be developed: the areas that need to be maintained, the specific components to be serviced, consideration of whether there is blockage in the trays (in the case of a packed tower, it is necessary to check for missing packing and arrange for its procurement or preparation in advance), whether scaffolding needs to be set up in advance, the preparation of appropriate maintenance tools, and cleaning tasks to be carried out ahead of time... During the maintenance process, manholes are opened from top to bottom, and ventilation is carried out sequentially. When it is necessary to enter the interior for inspection, an analysis of the gas composition inside the container must first be conducted; only after ensuring safety can a supervisor be assigned to oversee the operation…………