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US 3,977,439 AGranted
Sealing arrangement
AssigneeSociete Generale de Constructions Electriques et Mecaniques (ALSTHOM)
InventorPaul Lambert
Life of this patent
Estimating the term…
Abstract
A device intended for limiting leaks at the feet of the combustible eleme of nuclear reactors constituted by a labyrinth seal placed in the space between the foot of the combustible element and its recess in a supporting plate, one point of the said space communicating by orifices with a reduced pressure zone of the heat-bearing fluid with said zone being formed by a narrowing in the cross-section of the element.
Claims14
A sealing arrangement for tubular elements in a nuclear reactor comprising:
- fluid introducing support means for supporting an end portion of a tubular element and providing introduction of fluid into said tubular element,
- sealing means for preventing leakage of said fluid from said fluid introducing support means, said sealing means including
- a seal provided between said end portion of said tubular element and said fluid introducing support means, and
- at least one orifice means for communicating an interior portion of said tubular element with an exterior position of said tubular element which is supported by said fluid introducing support means, said interior portion having a reduced cross-section.
1 more element
A sealing system for tubular elements in a nuclear reactor comprising:
- at least one tubular means for containing the flow of a heat bearing fluid, said tubular means having an end portion,
- support means for vertically supporting said at least one tubular means in a nuclear reactor, said support means including a corresponding recess portion surrounding said end portion of said at least one tubular means,
- fluid introduction means for introducing said heat bearing fluid into said tubular means at said end portion, and
- sealing means for preventing leakage of said heat bearing fluid from said recess portion, said sealing means including
- a seal provided at said end portion of said tubular means in said recess portion, and
- at least one orifice communicating an interior portion of said tubular means with said recess portion, said interior portion having a reduced cross-section, thereby providing a zone of reduced pressure such that leaking fluid in said recess portion flows into said interior portion through said orifice.
3 more elements
Dependencies are inferred from the claim text.