Shell-and-tube apparatus with baffles
AssigneeCasale SA
InventorEnrico Rizzi
Life of this patent
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Abstract
Shell-and-tube apparatus comprising a plurality of baffles (5) which are arranged along the tube bundle, perpendicular to an axis of the tube bundle and passed through by the said tubes, wherein each baffle is an essentially flat body having openings (11) through which the tubes pass, and in the region of said openings (11) the baffle comprises tabs (12) which protrude from the surface of said baffle.
Claims17
Shell-and-tube apparatus comprising a plurality of baffles (5) which are arranged along the tube bundle, perpendicular to an axis (20) of the tube bundle (3) and passed through by said tubes, characterized in that:
- each baffle is an essentially flat body and comprises a metal plate (10) with openings (11) for the passage of the tubes through said baffle;
- at said openings (11) the baffle comprises tabs which protrude away from the metal plate,
- said tabs are configured to operate as elastic supports for the tubes and/or to operate as fluid-dynamic tabs adapted to deviate a fluid traversing the shell side of the apparatus.
Apparatus according to any one of the preceding claims, wherein at least one baffle comprises tabs of varying configuration.
Apparatus according to any one of the preceding claims, wherein each baffle occupies all or substantially all of the cross-sectional area of the shell side, or only a portion of said area.
Apparatus according to any one of the preceding claims, wherein tabs of adjacent baffles rest on opposite sides on each tube.
Apparatus according to any one of the preceding claims, wherein the baffles are formed in such a way that:
- each opening for one or more tubes comprises at least a first region suitable to receive the tube or tubes with play and a second region suitable to receive the tube or tubes with less play or with substantially zero play;
- each tube of the bundle is received in a first region of a respective seat when the baffle is in a so-called assembly position and is received in a second region of the seat when the baffle is in an operating position.
Apparatus according to any one of the preceding claims, wherein the tabs are formed by sheet-metal elements mounted on the metal plate in correspondence of the openings.
Apparatus according to any one of the preceding claims, wherein the baffles comprise an outer reinforcing ring having a thickness greater than the thickness of the metal plate.
Dependencies are inferred from the claim text.