Vertical tube heat exchanger apparatus having resilient distributor devices and a resilient distributor device therefor

  • US 5,054,547 A
  • Filed: 09/28/1990
  • Issued: 10/08/1991
  • Est. Priority Date: 09/28/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A vertical tube heat exchanger apparatus comprising:

  • a shell;

    a bottom tubesheet located in the shell proximate the bottom end of the shell, the bottom tubesheet being formed with a plurality of tube bottom end receiving apertures;

    a top tubesheet located in the shell spaced above and parallel to the bottom tubesheet, the top tubesheet being formed with a plurality of tube top end receiving apertures equal in number to the number of tube bottom end receiving apertures, and each one of the tube top end receiving apertures being in alignment with a different one of the tube bottom end receiving apertures;

    a plurality of parallel flow tubes extending between the top and bottom tubesheets, each tube having the open top end received in one of the tube top end receiving apertures of the top tubesheet and the open bottom end received in the aligned one of the tube bottom end receiving apertures of the bottom tubesheet; and

    ,a distributor having a generally cylindrical side wall defining an interior chamber coaxially inserted into the open top end of each tube, a plurality of ribs integrally formed on the exterior surface of the cylindrical side wall extending longitudinally of the cylindrical side wall and projecting outwardly from the distributor side wall to provide an interference fit with the inside peripheral dimension of the tube open top end;

    the distributor being fabricated of a material which is of sufficient resilience to be compressively deformed circumferentially of the distributor side wall to conform to irregularities in shape and size of the tube open top end, to create a continuous uninterrupted peripheral seal at the interface of the distributor side wall and the circumferential top edge of the tube open top end when the distributor is inserted in the tube open top end, and to recover the original circumferential size and shape of the distributor side wall when the distributor is removed from the tube open top end.

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