The function of high-pressure air cooling with heating
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Our high-pressure air coolers have steam tracing coils – is that just to prevent freezing and condensation? Are there any other functions?
It’s definitely not for preventing freezing; if it could freeze, then what’s the point of using air cooling?； I really haven’t seen air cooling with heat tracing before
It prevents the possibility of condensate becoming supercooled and freezing at the bottom of the air-cooled condenser; moreover, it allows air and non-condensable gases to be discharged more smoothly, avoiding the formation of dead zones that could become cold spots and cause the condensed water to freeze, thereby cracking the finned tubes.
We have both high-pressure air cooling and low-pressure air cooling. I don’t understand why either; could any technician help explain this? ?
It is supposed to prevent the device from being in an abnormal state during accidents, as well as to prevent water in the cooling medium from freezing
It’s just to prevent freezing – how simple.
This situation should not occur during normal operations
To prevent heavy oil from solidifying in the event of an emergency shutdown of the unit
Under normal conditions, heating is not required; it should be used in special situations such as blockages caused by ammonium salt crystallization due to uneven air cooling or too low air cooling load, in which case heating steam is used to melt the ammonium salts； In the cold winters of the north, low temperatures prevent the air-cooled tubes from freezing due to excessively low temperatures.