METHOD FOR ESTIMATING PEELING POSITION OF STEAM OXIDATION SCALE PEELING PIECE IN HEAT TRANSMISSION TUBE

PROBLEM TO BE SOLVED: To properly estimate a peeling position from a steam oxidation scale peeling piece peeled from a heat transmission tube in a peeling position estimation method of a steam oxidation scale peeling piece in the heat transmission tube.SOLUTION: A method for estimating the peeling p...

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Bibliographic Details
Main Authors MIYAZAWA NORIYUKI, SHIRANE TAKAHIRO
Format Patent
LanguageEnglish
Published 18.07.2013
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODS OF STEAM GENERATION
STEAM BOILERS
STEAM GENERATION
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To properly estimate a peeling position from a steam oxidation scale peeling piece peeled from a heat transmission tube in a peeling position estimation method of a steam oxidation scale peeling piece in the heat transmission tube.SOLUTION: A method for estimating the peeling position measures a chromium concentration of an inner layer scale in the steam oxidation scale peeling piece peeled from the heat transmission tube, specifies the chromium concentration of the heat transmission tube from the chromium concentration of the inner layer scale based on a map of the chromium concentration of the inner layer scale with respect to the chromium concentration of the heat transmission tube which is set in advance, and estimates the peeling position of the steam oxidation scale peeling piece based on the chromium concentration of the specified heat transmission tube.
Bibliography:Application Number: JP20120000256