| 摘要 |
A heat exchanger includes a plurality of flexible spiral tubing coils (12, 14, 16, 18,...) hydraulically connected to inlet and outlet manifolds (24, 22) mounted in spaced, parallel relationship to each other in a vertical array within a tank. The coils are alternately wound clockwise and counterclockwise, and the innermost (12B, 14B,...) and outermost (12A, 14A,...) turns of the spiral coils are selectively connected to the appropriate manifolds, so that the flow in one coil runs counter to those adjacent to it, resulting in a reduction of localized temperature gradients due to a temperature averaging effect in the fluid within the tank which lies between adjacent coils. |
