Title:
OUTLET PLUG FOR REACTOR RECIRCULATION LOOP
Document Type and Number:
Japanese Patent JPS58179394
Kind Code:
A
Abstract:
A stopper apparatus for use in blocking the unvalved nozzle of a cooling fluid filled nuclear reactor pressure vessel includes a plug, typically in the shape of a frusto-conical member having inflatable gaskets for sealing against a seat of generally unknown surface characteristics and means for positioning and urging the plug into position to seal the nozzle. The plug is typically positioned by suspension cables whereby the apparatus can be temporarily inserted and removed from the pressure vessel. The urging means is generally a two-way hydraulically driven jack controlled by remotely-actuated hydarulic lines. The apparatus is a tool which permits temporary sealing of a submerged outlet in a reactor vessel to permit maintenance on a fluid recirculation loop.
More Like This:
| JPS5657992 | SHIELDING PLUG |
Inventors:
CHIYAARUSU AASAA DARUKE
BARADOREI GASUTABUSON SUTOORU
BARADOREI GASUTABUSON SUTOORU
Application Number:
JP3390283A
Publication Date:
October 20, 1983
Filing Date:
March 03, 1983
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
G21C13/06; G21C13/028; (IPC1-7): G21C13/06
Domestic Patent References:
| JPS5427300U | 1979-02-22 |
Attorney, Agent or Firm:
Tokunji Ikunuma