EQUIPMENT FOR KEEPING THE CORE OF A NUCLEAR REACTOR, UNDERGOING THERMAL EXPANSIONS, IN THE RIGHT POSITION
In order to keep the core of a nuclear reactor undergoing thermal expansions in a predetermined position with respect to the pressure vessel enclosing this core, a thrust ring at the top of the core and generally frusto- conical in shape urges the core against the base. Preferably, the said base is made from a steel framework designed to bear the dead load of the core and supports a further frusto-conical thrust ring, so that the two thrust rings hold the core between them. These rings may be provided with organs having radial keyways in which keys, mounted on the inner wall of the pressure vessel, can slide. Each thrust ring is urged in the appropriate direction by spring loads transmitted to each thrust ring by bellcrank levers from springs located outside the main wall of the pressure vessel. (NPO)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-027169
- OSTI ID:
- 4842256
- Report Number(s):
- FR 1223927
- Country of Publication:
- France
- Language:
- English
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