Heat exchanger for reactor core and the like

Details Heat exchanger for reactor core and the like Heat exchanger for reactor core and the like

1982-09-02

1986-04-29

Richter, Sheldon J.

Heat exchange

Covered access opening

Cover is, or carries, heat exchanging means

165142, 165158, 165160, F28D 712, F28F 922

Patent

active

045850534

ABSTRACT:
A compact bayonet tube type heat exchanger which finds particular application as an auxiliary heat exchanger for transfer of heat from a reactor gas coolant to a secondary fluid medium. The heat exchanger is supported within a vertical cavity in a reactor vessel intersected by a reactor coolant passage at its upper end and having a reactor coolant return duct spaced below the inlet passage. The heat exchanger includes a plurality of relatively short length bayonet type heat exchange tube assemblies adapted to pass a secondary fluid medium therethrough and supported by primary and secondary tube sheets which are releasibly supported in a manner to facilitate removal and inspection of the bayonet tube assemblies from an access area below the heat exchanger. Inner and outer shrouds extend circumferentially of the tube assemblies and cause the reactor coolant to flow downwardly internally of the shrouds over the tube bundle and exit through the lower end of the inner shroud for passage to the return duct in the reactor vessel.

REFERENCES:
patent: 2261293 (1941-11-01), Samans
patent: 3768554 (1973-10-01), Stahl
patent: 3833058 (1974-09-01), Gulich
patent: 3850231 (1974-11-01), Creek
patent: 3857442 (1974-12-01), Sturiale et al.
patent: 3907029 (1975-09-01), Klein et al.
patent: 4224983 (1980-09-01), Thurston et al.
patent: 4418748 (1983-12-01), Pouderoux et al.
patent: 4431049 (1984-02-01), Zamma et al.

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