Is it necessary to evacuate and then replace with nitrogen at every step for flammable and explosive devices?
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Is it necessary to evacuate and then replace with nitrogen at every step for flammable and explosive devices? Does the equipment need to be evacuated and purged with nitrogen every time a material passes through a process step and before entering that equipment? For example, if the materials are fed into the mixing tank first, then the tank must be evacuated and filled with nitrogen before materials can be added ； Then, after preparation in the mixing tank, the next step is to go to the condensation tank. Before entering the condensation tank, does it also need to be evacuated and filled with nitrogen first? Wouldn’t that be very troublesome?
This is a type of intermittent operation, and during the transfer of materials, some air will inevitably get mixed in. It is recommended to carry out gas replacement; it’s a bit more troublesome, but safety comes first and is essential!
Yes. Vacuuming is not necessary, but the atmosphere must be replaced with an inert gas to ensure an acceptable oxygen level.
Yes. Vacuuming is not necessary, but the atmosphere must be replaced with an inert gas to ensure an acceptable oxygen level.
Safety is no trivial matter; the image of that reactor exploding is still etched in my mind. It’s terrible when static electricity is generated
…………If the material is liquid, it should be possible to achieve sealed feeding and discharging. As long as the equipment and pipelines ensure a sealed operation so that air does not enter and form a mixed explosive gas, and proper static electricity grounding is in place, it shouldn’t be too complicated…… It might also depend on the type of material; the toluene and propylene we use are transported in a sealed manner, without the need for nitrogen purging………………:)
Nitrogen purging is necessary; safety comes first. As for whether to evacuate, it mainly depends on the properties of the material, with the key being to ensure thorough displacement.