Does a 10% sodium carbonate solution crystallize easily? Sodium carbonate pump
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10% concentration, flow rate 20 m3/h, head 20 m, for outdoor use in the north. Operating intermittently – in that case, is it necessary to take anti-freezing measures for the pump body? If I were to do it, how would be the best way to do it?
At a concentration of 10%, crystallization occurs when the medium temperature drops below 10 degrees. Add heating
It is necessary; electric heating is sufficient, or a thermal insulation jacket will work as well
Okay, then let’s supply steam for heating through the insulation jacket
Okay, then let’s supply steam for heating through the insulation jacket:handshake
Electric heating is sufficient; the temperature of steam is high, so it’s necessary to check whether the net positive suction head available after steam insulation is still sufficient. Regarding the corrosion of the material, I checked and found that it has little impact on carbon steel and stainless steel.
Two suggestions: 1. The electric heating method mentioned by Haiyou above is not easy to implement, and it may not prevent freezing in certain parts of the pump (such as the seals and flushing pipes); one only needs to look at the pumps and pipelines in the north, which are wrapped up as if they were injured, to understand this. 2. Drain or empty the pump; if it will not be in use for an extended period, it is recommended to empty the medium from the pump and pipelines. It is even better to perform a purging process, as this reduces heat consumption and lowers the risk of crystallization and freezing.