Shell and tube heat transfer apparatus and process therefor
A shell and tube heat exchange apparatus is described for heat exchange between two fluids consisting of: a shell having an inner wall, an inlet to the interior thereof and an outlet therefrom for the passage of a respective fluid through the shell space in the shell interior; at least one tube mounted within the shell having an inner and outer surface and having an inlet to the interior thereof and an outlet therefrom for the passage through the tube interior of a respective fluid, each tube wall constituting a heat exchange wall between the two fluids in the shell interior and the tube interior; fluid flow within the tube interior taking the form of a nonturbulent boundary layer immediately adjacent to the tube inner surface, and a core-layer interfacing with the boundary-layer; a tube side fluid flow interrupter structure within each tube comprising a plurality of longitudinally extending rows of spheroidal members contacting the inner wall of the passage, the structure interrupting non-turbulently the full development of at least the boundary-layer at the tube inner surface at a plurality of spaced interruption spots, whereby parts of the interrupted boundary-layer will separate non-turbulently from the tube inner surface between the interruption spots and mix with the core layer to effect heat transfer between the tube inner surface, its respective boundary-layer, and the core-layer; and the space between the longitudinally extending rows being filled with a space-filling material to prevent useless flow of fluid in the part of the tube interior remote from the tube inner surface.
- Assignee:
- NOV; NOV-85-015014; EDB-86-137595
- Patent Number(s):
- US 4593754
- OSTI ID:
- 5656655
- Resource Relation:
- Patent File Date: Filed date 21 Aug 1985
- Country of Publication:
- United States
- Language:
- English
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