Heat exchange – Expansion and contraction relieving or absorbing means – Relieving or absorbing means supports temperature modifier...
Patent
1981-02-06
1982-11-23
Richter, Sheldon J.
Heat exchange
Expansion and contraction relieving or absorbing means
Relieving or absorbing means supports temperature modifier...
165 76, 165139, 165158, 165175, 285 20, 285261, F28F 906
Patent
active
043600573
ABSTRACT:
A high temperature tube and shell vertically positioned heat exchanger including a plurality of tube sheets dividing the interior of the shell into three consecutive chambers. Ceramic tubes are vertically hung from hemispherical seats in an upper tube sheet and extend downwardly through loose fitting porous inserts which line perforations in the lower tube sheets. A hot fluid flows from the bottom chamber upwardly through the ceramic tubes, a cool fluid flows through the upper chamber across the tubes, and a third fluid is injected into the intermediate chamber at a pressure higher than that of the fluid mediums in the upper and lower chambers. The third, high pressure fluid flows through the porous inserts and into the other chambers forming a dynamic seal which also allows unrestricted axial motion of the tubes and limited laterial motion of the bottom of the tubes.
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Dermer Z. L.
Otto W. E.
Richter Sheldon J.
Westinghouse Electric Corp.
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