Method for sealing a bare hole defined by a nuclear heat exchang

Details Method for sealing a bare hole defined by a nuclear heat exchang Method for sealing a bare hole defined by a nuclear heat exchang

1995-12-13

1998-02-10

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

2989003, 29523, 29723, B23P 1500

Patent

active

057155984

ABSTRACT:
Method and joint for sealing a bare hole in a nuclear heat exchanger tubesheet. The tubesheet has a plurality of holes formed therethrough, wherein at least one of the holes has been left vacant by a heat transfer tube removed from the hole. Such a hole is defined as a bare hole. One embodiment of the method of the invention comprises disposing a sleeve in the bare hole to protect the tubesheet material from the corrosive attack of the heat exchanger primary coolant and sealingly disposing a sleeve plug in the sleeve in order to seal the sleeve. A leak-tight joint is defined as the sleeve plug is sealingly disposed in the sleeve.

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