Flammable media, direct electric heating, the issue of gasification in pipelines
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The easily vaporizable medium is pumped out using a positive displacement pump; electric heat tracing is installed directly in the pipeline at the pump outlet, allowing vaporization to occur right within the pipeline. Will such a setting have an impact on the pump’s performance? Is it safe?
Is the heat transfer capacity of your electric heat tracing that high? It is unlikely to vaporize in large quantities within the pipeline. It is recommended to vaporize it in a vaporizer.
It is better to use a centrifugal pump; the impeller can do work on the liquid, causing its temperature to rise
Is it required that the substance be completely vaporized during transportation through the pipeline? What should be done with the remaining part? It is recommended to make the question more complete to facilitate discussion.
Is it dangerous to vaporize in a pipe?
What constitutes a danger is, first, the occurrence of overpressure when the pressure exceeds the design pressure of the pipeline, and second, the formation of an explosive gas mixture. This is merely vaporization; these two situations will not occur, so there is no danger. I wonder if there is a continuous receiving end for the vaporized gas? Has a safety valve been installed at the receiver end? When asking a question, you must describe the entire process clearly; otherwise, how can others make an accurate judgment!
It has an impact; after vaporization, the back pressure of the volumetric pump increases, affecting its performance
This post was last edited by CHANGBAISHI on 2020-6-30 at 15:42. Your idea is fine. However, if the amount is small and the pipe diameter is small, that’s fine. But for large quantities with large pipe diameters, the energy consumption associated with the heat exchange area will be much higher; it’s better to use a heating vaporizer, as this results in less energy loss. Oh, as for safety, I’m not sure whether the materials are flammable or explosive. If they are flammable or explosive, then electric heating cannot be used; an alternative method should be adopted. I’m not sure what the heating temperature is; perhaps it would be possible to use electric heating for water and oil, and then use that to heat the material, as a suggestion.
We need to calculate it – how many calories are required. It is best to heat or exchange heat for the gas inside the tank.