ANALYSIS OF THE ROUGHNESS PARAMETERS AND CHEMICAL COMPOSITION TRANSFORMATION OF THE PROTECTIVE COATING OF A PIPELINE DURING ITS REPAIR
ANALYSIS OF THE ROUGHNESS PARAMETERS AND CHEMICAL COMPOSITION TRANSFORMATION OF THE PROTECTIVE COATING OF A PIPELINE DURING ITS REPAIR
DOI:
https://doi.org/10.22337/2587-9618-2026-22-3-144-154Keywords:
pipeline, protective coating, roughness, light microscopy, profilometry, water quality indicators, energy savingAbstract
The issues of potential transformation of the surface roughness of solid samples of the sprayed protective coating Subcote FLP, used during the period of trenchless reconstruction of pressure pipelines, are considered. The technique of conducting experiments on the dynamics of changes in the roughness of samples in the time range by immersing them in a container with water, dosing a disinfectant into it and processing water on a magnetic stirrer with subsequent analysis of the surface of samples by methods of lightoscopy and profilometry are presented. Changes in the qualitative characteristics of coating samples and chemical indicators of water are identified and analyzed. The dynamics of changes in the equivalent roughness coefficient of protective coatings and the quality parameters of protective coating samples in water at different temperatures are presented. Based on the results of light spectroscopy, the coefficients of hydraulic friction and equivalent roughness were calculated, as well as an automated calculation using a specially developed program to assess energy savings during water transportation when using the Subcote FLP protective coating during the renovation of a steel pipeline .
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