| 摘要 |
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. Supporting means are provided for mounting the tube bundle within the shell, the supporting means including a lower roller and seal assembly and an upper stabilizer assembly, each of which may be secured to an associated mounting bracket. The lower roller and seal assembly includes a plurality of longitudinally spaced apart rollers each pair of rollers including individual rollers which are spaced apart to opposite sides of a longitudinally extending centrally located seal. The upper stabilizer assembly also includes a longitudinally extending seal and stabilizers disposed to either side of the seal.
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