Cleaning of the inner wall of carbon steel pipes
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The pipes commonly used in factories are made of carbon steel and stainless steel. For example, in ammonia refrigeration systems, it is necessary to remove rust from the inner walls of carbon steel pipes, as well as welding slag and other debris. The costs associated with sandblasting and acid cleaning are quite high. Previously, we would use wire brushes to clean the surfaces and then blow them out with compressed air. I would like to ask those who have experience – do you have any better methods that can clean the inner walls of pipes more efficiently and with less effort?
;P It’s not ammonia-based refrigeration here, but for cleaning as well, I use a wire brush to scrub back and forth – I’d like to learn how to do that too
Generally, compressed air is also used for purging; steam is more effective if available. As for sandblasting and acid washing, there’s no real need for them if there are no specific requirements.
A pig is used, just like those used to clean pipelines underwater