How to shut down the heat tracing for high-temperature pipelines in atmospheric and vacuum distillation units
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Once the atmospheric and vacuum distillation unit is operating normally, steam supply for the heating of high-temperature pipelines should be stopped. How do other similar units handle this? Should the steam valve be closed, or should the drain valve be shut off? Should both be turned off?
Close the air supply manual valve to disconnect the condensate from the system, drain all the condensate from the pipeline at the lowest point, and then close the condensate manual valve!
Close the gas supply valve and simultaneously open the low-point drain to release any accumulated liquid