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The coil wound tube heat exchanger is made of one or more groups of spirally wound tubes placed in a shell. The heat exchange tubes has enhanced heat transfer elements such as smooth tubes, corrugated tubes and internal thread external bellows, which are arranged in the shell at different spiral angles.
Preheating – another common use for heating coils is preheating metals prior to welding or other processes. Thawing – because heating coils can generate large amounts of heat very quickly, they’re often used for thawing frozen pipes or other objects.