Non-bolted ringless nozzle dam

A nozzle dam for providing a fluid-tight inflatable seal across a primary fluid nozzle in the plenum of a nuclear steam generating vessel includes an elongated shaft coupled at one end thereof to an anchor assembly frictionally engageable with the inner surface of the nozzle to anchor the dam in pla...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CALHOUN, GREGORY LEE, DAWSON, PAUL HENRY, WILHELM, JOHN JOSEPH, KRAMER, ARTHUR WILLIAM
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METHODS OF STEAM GENERATION PIPES STEAM BOILERS STEAM GENERATION SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A nozzle dam for providing a fluid-tight inflatable seal across a primary fluid nozzle in the plenum of a nuclear steam generating vessel includes an elongated shaft coupled at one end thereof to an anchor assembly frictionally engageable with the inner surface of the nozzle to anchor the dam in place and a fluid-impermeable inflatable seal coupled to the shaft and closing the nozzle and frictionally engageable with the inner surface thereof to form a fluid-tight seal. The dam may include a foldable tripod centering mechanism and a shaft tensioning tool.