Closure head for a nuclear reactor

Details Closure head for a nuclear reactor Closure head for a nuclear reactor

1977-06-16

1980-01-01

Engle, Samuel W.

Receptacles

Compartmented container

Compartment partition is movable or removable

49480, 220224, G21C 1306, E06B 716, B65D 5300

Patent

active

041815726

ABSTRACT:
A closure head for a nuclear reactor includes a stationary outer ring integral with the reactor vessel with a first rotatable plug disposed within the stationary outer ring and supported from the stationary outer ring by a bearing assembly. A sealing system is associated with the bearing assembly to seal the annulus defined between the first rotatable plug and the stationary outer ring. The sealing system comprises tubular seal elements disposed in the annulus with load springs contacting the tubular seal elements so as to force the tubular seal elements against the annulus in a manner to seal the annulus. The sealing system also comprises a sealing fluid which is pumped through the annulus and over the tubular seal elements causing the load springs to compress thereby reducing the friction between the tubular seal elements and the rotatable components while maintaining a gas-tight seal therebetween.

REFERENCES:
patent: 2288263 (1942-06-01), Bostwick
patent: 2993713 (1961-07-01), Krueger
patent: 3698724 (1972-10-01), Blachere
patent: 3819478 (1974-06-01), Thorel
patent: 3867254 (1975-02-01), Brandstetter
patent: 4050988 (1977-09-01), Lemercier
patent: 4078969 (1978-03-01), Garin
patent: 4080254 (1978-03-01), Poindexter
Krueger, Rudolph E. & Co., "A Dynamic Seal for Use in Extreme Temperature Service", Publication by Rudolph E. Krueger Co.

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