Sulfuric acid plant maintenance projects
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A set of alkylation waste acid regeneration units has been in operation for 10 years; no special maintenance has been carried out until now, with only dust removal or inspections, as well as the replacement of valve gaskets or other wear-prone components. What should be taken into account during this major overhaul? Do the economizer or superheater, as well as the boiler, need to be replaced?
This major maintenance effort will focus on checking the wear and corrosion of the equipment, especially the heat exchangers, pipes, and reactors that have been in operation for a long time. Thorough inspections should be carried out on key components such as economizers, superheaters, and boilers; if any signs of damage or reduced performance are detected, replacement should be considered. At the same time, it is necessary to check whether the control system and safety protection devices are operating properly. Decide whether to replace components based on the actual condition of the equipment and the maintenance budget. .
It is determined whether a replacement is necessary based on the level of usage. For safety reasons, key areas and the weakest points are inspected before the major repair; if safe operation cannot be ensured, replacements must be purchased in advance, otherwise it will affect the progress of the repair work.
During major overhauls, whether to replace or repair equipment and pipelines depends on the regular maintenance and inspection records of those devices.