Abstract: A heat exchanger having a cylindrical shell divided into upper and lower chambers. A tube bundle may be disposed within the lower chamber, the tube bundle having spaced apart inlet and outlet sides which can be disposed either to one side or the other thereby permitting greater placement of the inlet and outlet ports on the shell. To this end the structure which divides the shell into upper and lower chambers includes a generally horizontal longitudinally extending plate assembly provided with openings to either side of a vertically extending barrier wall used for controlling the flow of air. Longitudinally extending guide bars are secured to the lower surface of the horizontal plate. The tube bundle includes upper and lower longitudinally extending shrouds, each of which is provided with a mounting bracket which extends away from the shroud along a longitudinally extending vertical plane which bisects the center of gravity of the tube bundle.

Abstract: A heat exchanger having an outer shell with an elongated, semi-circular fluid duct plate mounted in the shell. A tube bundle slidable between the duct plate and the shell is fixed at one end relative to the shell. The fluid inlet and outlet configuration, and transverse fluid flow pattern, are typical of those described in U.S. Pat. No. 3,532,160. The exterior of the tube bundle is partially covered with a shrouding to contain the fluid flow within the tube bundle by allowing the fluid to exit only through the outlet side. Sealing mechanisms running longitudinally between the shrouding and the upper duct plate, and between the shrouding and the shell, provide a seal which restricts the fluid flow to a transverse flow through the tube bundle. A seal between the supported end of the tube bundle and the shrouding confines the fluid flow in the bundle and allows for relative expansion of the shrouding and the bundle.