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The methanol tank contains wax, and cleaning it requires vaporizing the contents of the tank; one type is a dome tank with a nitrogen seal, while the other is an internal floating roof tank equipped with a floating disk. What are the things to keep in mind? I would appreciate some guidance from those who are more experienced.
The steps for cleaning a methanol tank are as follows: cleaning with deionized water – filling the tank with nitrogen – introducing steam after H2S levels are confirmed to be within acceptable limits – ventilating the tank after steaming, followed by testing for oxygen content and harmful gas levels – and finally, cleaning via high-pressure spraying. During the cleaning process, at least 2 combustible gas detectors of the same model must be available on site, and fire trucks as well as gas prevention vehicles must remain on standby throughout the operation.
What should be taken into consideration when venting tanks with internal floating disks? Thank you
The sealing tape on the float disk inside the tank was removed. Since scaffolding cannot be set up inside the tank with an internal floating disk structure, a fixed painting system must be installed, and manual cleaning is used below the floating disk.
1. Prevent overpressure; 2. Prevent the tank from collapsing due to steam condensation after cooking stops.
Are there cleaning robots in use now?