Regarding the safety distance for electric heaters
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When arranging an electric heater as a heat source, what should be taken into consideration? For example, I need an electric heater now that is used to raise the temperature of gas to 350–500°C; what safety distance is required from other equipment or units? We can’t just consider it as an open flame; should we simply set a distance of 30 meters? (For use in Class A factories?) I asked a few people, and they all said that a safety distance is necessary, but as for which specific standards should be followed and what exactly that distance should be, there is no clear figure. Also, what is the difference between explosion-proof and non-explosion-proof electric heaters? I’m still not quite sure about it……
One should have a good understanding of process system design and layout. Ask someone to help you @smwxl @Guan Gongyu @ylb913
The wiring terminals of the explosion-proof electric heater are sealed. The wiring terminals of non-explosion-proof electric heaters are simple enclosures!
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Electric heaters also come in explosion-proof and non-explosion-proof versions; in my opinion, they should be treated as explosion-proof motors, and no special arrangements are necessary
This is how I think about it: essentially, an electric heater is just a heat exchanger, with electricity serving as the medium for heat transfer. Once the electrical components are made explosion-proof, it functions like a regular heat exchanger. As long as the equipment and pipes are properly insulated, its layout should be the same as that of a regular heat exchanger; a distance of around 5 meters from the reactor should be sufficient. Please feel free to correct me.
There are indeed no specific standard specifications for electric heaters, but it seems they should be treated as ordinary equipment, requiring no special fire separation distances
I hope those who have used it can provide more guidance regarding electric heaters
Electric heaters don’t require any special fireproof compartments!
Where is it used? It’s not suitable for areas prone to fire and explosion.
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