Use water to push out the oil from the electrodialysis tank.
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The design of the electric desalting oil-removal pump I installed is too small. Three-stage desalination; the oil removal time is too long. Prepare the crude oil pump to pump water. From the top to the flash tower. The heat exchanger before separation operates entirely on the bypass line, and the condition of the top oil is monitored at the sampling point at the third-stage outlet. When is the right time to add water when the fire has completely gone out? Guys.
That will work too, but once the oil has been drained, the electrodialysis unit won’t be able to cool down either; in that case it will need to be done again
This method can be used as a reference; after applying water to the surface, it is also possible to steam it directly.
A suggestion: Before shutting down the operation, shut down the primary electrodialysis unit; let the crude oil flow through the primary bypass line. Use water injection to push the crude oil in the tank into the secondary tank, after which the primary tank can be isolated for dehydration and oil removal. Treat the secondary tank in the same way, and handle the tertiary tank after the shutdown. This approach will significantly reduce the amount of oil that needs to be removed through electrodialysis.