Method for generating a stress reduction in erected tube walls of a steam generator

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United States of America Patent

PATENT NO 10273551
APP PUB NO 20130101949A1
SERIAL NO

13656449

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Abstract

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In the case of a method for the heat treatment of erected, preferably large-area tube wall regions or tube wall segments, in particular of a diaphragm wall, of a steam generator, in particular of a power plant, in the installed state, it is sought to provide a solution which permits the use of steel types which are more problematic with regard to power plant operation with elevated steam parameters, in particular the steels T23 and T24, in the erection of steam generators. This is achieved in that the tube wall regions or tube wall segments for heat treatment are subjected, in the installed state in the steam generator, and in particular over a large area, to a stress-relief annealing process.

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Patent Owner(s)

Patent OwnerAddress
GENERAL ELECTRIC TECHNOLOGY GMBHSWISS BADEN BADEN AARGAU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berndt, Thoralf Stuttgart, DE 6 13
Busekrus, Kurt Mülheim, DE 1 2
Heim, Michael Horb, DE 41 321
Müller, Jürgen Bergisch Gladbach, DE 22 36
Stegemann, Carsten Krefeld, DE 3 18
Thesing, Rudolf Heiden, DE 1 2
Weissinger, Gerhard Koenegen, DE 6 4

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