In this study, a new experimental method for measuring the creep of pipeline using moire interferometry was proposed. Curved-surface-deformed grating replicating technique was combined with the high-temperature-resistant grating and moire interferometry method, and was applied to measure the creep of a 475°C main steam pipeline in the Qinghe Power Plant for 3600 h. The measuring principle and experimental techniques are described. The measuring error and experimental results are discussed in detail.
Issue Section:
Research Papers
Topics:
Creep,
Interferometry,
Pipelines,
Diffraction gratings,
Errors,
Power stations,
Steam,
Temperature
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