Heat exchanger with convection suppressing longitudinal baffles

DETAILED DESCRIPTION What is claimed is: 1.
In a heat exchanger, the combination comprising a vertical central tube; a jacket concentric to said tube to define a first annular space therebetween; a plurality of support plates extending coaxially and radially from said central tube to said jacket to sub-divide said annular space into a plurality of parallel flow paths for a first flowable medium; a plurality of heat exchanger tubes extending between said central tube and said jacket within said flow paths to convey a second flowable medium therethrough for delivery to said central tube; distributing means spaced from said support plates with an annular chamber therebetween and connected to said tubes at one end thereof to deliver the second flowable medium thereto; a plurality of separating plates extending through said annular chamber each separating plate extending coplanar with a respective support plate and extending from said support plates to said distributing means to define continuations of said flow paths throughout the annular chamber so as to prevent a circular flow; and outlet means in said jacket adjacent said distributing means to exhaust the first flowable medium from said flow paths.
2.
The combination as set forth in claim 1 which further comprises a lining concentric to said jacket to define a second annular space therebetween, said second annular space being in communication with said outlet means to receive the first flowable medium, a collector connected to said second annular space at an end opposite said outlet means, and a plurality of fins coaxially of said support plates and said separating plates for sub-dividing said second annular space.
3.
The combination as set forth in claim 1 which further comprises a supply duct connected to said jacket to deliver the first flowable medium to said first annular space.
4.
The combination as set forth in claim 1 wherein said separating plates are disposed in an odd number.
5.
The combination as set forth in claim 1 wherein said heat exchanger tubes are disposed helically about said central tube and are supported in said support plates