Heat exchange – With first fluid holder or collector open to second fluid – Separate external discharge port for each fluid
Patent
1977-08-11
1980-10-07
Richter, Sheldon Jay
Heat exchange
With first fluid holder or collector open to second fluid
Separate external discharge port for each fluid
122441, 165134R, 165160, 165163, F28B 910, F28F 922
Patent
active
042262836
ABSTRACT:
A multitubular heat exchanger mainly used in thermal and nuclear power plants having a plurality of tube bundles located within a shell and including a large number of U-shaped heat transfer tubes for permitting a medium to be heated to flow therethrough, and a vent tube interposed between the tube bundles and arranged in the longitudinal direction of the shell, further includes at least one flow guide plate with or without at least one slit disposed in or near the outer marginal portion of one of the tube bundles for inducing streams of a heating medium to flow toward the vent tube. The provision of the guide plate with or without the slit has the effect of moving a heating medium stagnating zone, which has hitherto been located in one of the tube bundles, to a position which is in the vicinity of the vent tube to thereby prevent corrosion of the heat transfer tubes by noncondensable gas.
REFERENCES:
patent: 1746716 (1930-06-01), Ehrhart
patent: 2180840 (1939-11-01), Tuley et al.
patent: 3349841 (1967-10-01), Stoker
patent: 3795273 (1974-03-01), Brigida et al.
patent: 3938588 (1976-02-01), Coit et al.
Furukawa Masahiro
Yamane Tamotsu
Hitachi , Ltd.
Richter Sheldon Jay
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