Temporary obturation panel of a passage inside a vessel...

Details Temporary obturation panel of a passage inside a vessel... Temporary obturation panel of a passage inside a vessel...

F - Mech Eng,Light,Heat,Weapons

22

B

122/154

F22B 37/00 (2006.01) F16J 13/02 (2006.01) F16L 55/10 (2006.01) F22B 37/22 (2006.01)

Patent

CA 1239844

ABSTRACT OF THE DISCLOSURE: The invention relates to a temporary sealing obturation panel, inside a vessel accessible only through a manhole, of a passage provided on its periphery with a support collar. It is constituted by: panels articulated by flexible fluid-tight hinges, bordered by lines of latching pins, stiffeners comprising lines of holes con- jugate with the lines of pins, a frame in at least two articulated parts, with means for gripping the ends of the panels and the stiffeners against the support collar. The invention is applicable to the closing of primary circuit ducts opening into the water box of a steam gener- ator of a pressurized water nuclear boiler.

466805

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