The issue of nitrogen temperature rising in pipelines
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I’m facing a problem now: the nitrogen supplied by the owner is at -52°C, and the equipment needs to have its temperature raised to 20°C before it can be used. The current plan is to use electric heating for the pipes. I wonder if nitrogen can be heated in this way? Are there any guidelines? Which experienced master can offer some advice? Thank you so much
I’m not sure about the pressure flow rate; generally, it is reheated during the transportation process. If necessary, a water-bath heater can be made to heat water with steam, and the hot water is then used to heat nitrogen.
Before introducing the equipment, install an air-temperature type vaporizer; if necessary, install a steam-heated water bath type vaporizer.
I haven’t checked, but I assume that under such operating conditions, nitrogen will be in gaseous form. The most accurate way to control temperature is through electric heating, rather than electric tracing. A proper electric heating system is easy to control but requires high energy consumption (up to 50% theoretically). Other methods involve the use of warm water, but this approach has a latency issue.
The effect is not significant; let’s add a heat exchanger.
It seems that 20-carbon steel pipes cannot be used; alloy steel pipes have to be employed instead. Electric heating should work. Formed into a coil.