Patent ID: 6325139
Filing Date: 2001-12-04
Classification: F28D

Abstract:
A heat-exchange coil assembly comprising:a medium inlet member having at least one inlet tube and at least one inlet header, said at least one inlet header being in a posture substantially perpendicular to that of said at least one inlet tube and having a plurality of outflow ports alternately provided on the peripheral wall thereof on opposite sides of the centerline thereof;a medium outlet member having at least one outlet tube and at least one outlet header, said at least one outlet header being in a posture substantially perpendicular to that of said at least one outlet tube and having a plurality of inflow ports alternately provided on the peripheral wall thereof on opposite sides of the centerline thereof; and,a plurality of heat-exchange coils, having a common center line and communicating the at least one inlet header to the at least one outlet header;wherein each coil has a different winding diameter and said coils are alternately linked to the respective headers at alternating opposite sides of the center lines of the headers such that a fluid flowing out from the inlet header through the heat-exchange coils flows in a direction opposite to a flowing direction of a fluid flowing into the outlet header; andwherein said heat-exchange coil assembly is adapted to be accommodated inside a drum containing a heat-exchange medium.