Patent ID: 6926073

Claim:
A heat exchanging device having an inlet pipe for introducing a coolant and a discharge pipe for discharging the coolant introduced from the inlet pipe, the heat exchange device comprising: an inner spiral pipe wound in a spiral shape so that the diameter gradually decreases from the inlet pipe; an outer spiral pipe outwardly connected to the inner spiral pipe at a position where the inner spiral pipe has the smallest diameter and wound in a spiral shape at a predetermined space from the inner spiral pipe and then connected to the discharge pipe; and a supporting unit for supporting the inner spiral pipe and the outer spiral pipe so as to be fixed to each other, wherein the supporting unit comprises a plurality of fixing plates to maintain a regular space between the inner spiral pipe and the outer spiral pipe; a support stand fixed to side of the fixing plate and extended downward for supporting the inner spiral pipe and the outer spiral pipe; a bent portion bent horizontally from an end of the support stand; and an engaging member for engaging the bent portion to a bottom plate.