METHOD FOR INSPECTING THE SURFACE CONDITION OF A TUBE
FR3158361A1Active Publication Date: 2025-07-18LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE +1
Patent Information
- Application Number
- FR2024000455
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-17
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2044-01-17
Abstract
The present invention relates to a method for inspecting a tube (1), in particular a catalytic tube used in a chemical reforming process, by means of a plurality of laser sensors (11.1-11.4) comprising: - a step of acquiring a circumferential profile (PC1-PC4) for each laser sensor (11.1-11.4), each circumferential profile (PC1-PC4) extending along an angular sector of the circumference of the tube (1), - a step of reconstructing an external circumferential face, called external skin (Pext) of the tube (1), from the circumferential profiles (PC1-PC4) generated by the laser sensors (11.1-11.4), - a step of determining an ovalization parameter (Kov) of the tube (1), - a step of determining a local deformation parameter (Kdef) of the tube (1), and - a step of determining a damage level (Nend) of the tube (1) as a function of the ovalization parameter (Kov) of the tube (1) and the local deformation parameter (Kdef) of the tube (1). Figure 3
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Citation Information
Patent Citations
Device for contactless, optical testing of roundness and straightness of pipeline tube, has evaluation unit in position to determine straightness of tube over whole length at circumferential position of straightness sensor
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A method of non-contact measuring of outer dimensions of cross sections of metallurgical rod material and a modular frame for performing thereof
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Method of determining diametrical growth of reformer tubes
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