Issues regarding the maintenance of bulk packed tower
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Dear experts, I would like to ask some questions regarding the maintenance of packed towers. Suppose we have a packed tower with a height of around 1 meter, and it consists of three sections, each containing metal packing that is about 5-6 meters long. There is an access hatch at the bottom of each section, as well as one at the top. Considering the safety issues and difficulties associated with working in confined spaces, what methods can be used to remove the metal packing during maintenance, while taking into account safety, operational complexity, and cost factors? My idea: Combine 2 and 3. Outsource it to a professional company to retrieve ； Purchased or rented vacuum extraction pumps ； The operator can access it through manholes at the bottom and at the top; due to the relatively large height of the layer, safety poses certain challenges. Please take safety, operational complexity, and cost into consideration, and come up with a good solution! If designing a new tower, how can it be designed to avoid such problems? Of course, the fewer manholes and access points, the better. Designing a tower with 4 layers and a height of 4 meters is also one option; however, 4 meters still seems like a difficult height for maintenance purposes. Thank you. This post was last edited by paulwang1979 on 2009-3-12 at 12:32.]
Technical specifications for the maintenance of packed towers: http://bbs.hcbbs.com/viewthread. ... =%CB%FE%BC%EC%D0%DE The hazards and prevention of the spontaneous combustion of FeS during the maintenance of packed towers: http://bbs.hcbbs.com/viewthread. ... =%CB%FE%BC%EC%D0%DE
1 Understand the operational status and prepare all necessary drawings and documents； 2 Develop a detailed construction plan and safety measures ； 3 Prepare the necessary maintenance tools ； 4 Verify the number of components ； 5 The internal medium has been successfully purged and replaced, meeting the conditions for safe maintenance (especially regarding oxygen content) ； 6 Prepare the necessary personal protective equipment ； 7 Process construction work orders ； 8 Implement on-site risk mitigation measures ； 9 Confirm that the device is ready for safe disassembly ； 10 Set up scaffolding and remove insulation at the manhole ； 11 Remove the manhole bolts of the packing tower and check for cracks, corrosion, or detachment at the manhole ； 12 Remove the packing tower gland bolts, take out the gland, and remove the packing ； 13 Packing in the scrubber tower ； 14 Check that the inner wall of the tower should have no cracks, bulges, or peeling ； 15 Check that the tray and other components inside the tower are firmly secured; there should be no looseness ； 16 Replace damaged and detached components inside the tower ； 17 Reinstall all components of the packed tower, replace the manhole gaskets and some bolts ； 18 Restore insulation, remove scaffolding ； 19 On-site cleaning ；
The key lies in risk assessment and the implementation of preventive measures. Last edited by Yinshuisiyuan on 2009-3-11 10:54.]
Maintenance is a tough and dangerous task; it is essential to follow the procedures and carry out all necessary preparations.
Typically, a bulk packed tower is designed with a filling port and a discharging port; the key is to ensure proper replacement of the packing, with discharge taking place directly through the discharging port, allowing no need for people to enter the container.
It seems that it’s easier to remove the sections one by one using a crane and place them on the ground, so as to replace the filler or carry out repairs. :lol
Take proper safety measures; it’s best to obtain the construction plan from the manhole
The packing tower is due for maintenance next month, and it’s really frustrating to have to prepare a maintenance plan without any prior experience in such tasks