For high-purity PFA lined tubes with organic solvents as the internal medium, how can static electricity be prevented during safe design?
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The project uses high-purity PFA lining tubes, and the fluid medium flowing within these pipes is a type B organic solvent. Since the project requires control of metal ions, the PFA lining must be of high purity and cannot contain any metal dopants that could facilitate electrical conduction. Therefore, in the safety design, how can static electricity generated during flow be eliminated?
Static electricity cannot be eliminated; it must be addressed at the system level, for example through inert gas protection
The storage tanks and mixing vessels are designed with slightly positive pressure nitrogen protection, but what about the pipelines?
Containers connected at both ends just need to be protected with nitrogen. As long as it’s written this way in the safety assessment, it will be approved
There is another theory that involves controlling the flow rate of the medium to prevent the generation of static electricity. Are there any data on such flow rates (empirical data or computational models)?