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2021 №10 (05) DOI of Article
10.37434/as2021.10.06
2021 №10 (07)

Automatic Welding 2021 #10
Avtomaticheskaya Svarka (Automatic Welding), #10, 2021, pp. 40-48

Improving the reliability of energy complex equipment by electric arc spraying

A.V. Hruzevych1, V.V. Shvets2
1Trypilska TPP. PJSC «Centrenergo». 1 Promyshlennaya Str., 08720, Ukrainka, Ukraine Institute of Magnetism of the National Academy of Sciences of Ukraine and Ministry of Education and Science of Ukraine. 03142, 36-b Akademik Vernadsky Blvd., Kyiv, Ukraine. E-mail: Gruzevich@bigmir.net
2Chief Technologist Department. «REZON», LTD. 1 Geofizicheskaya Str., 49057, Dnipro, Ukraine. E-mail: 230608us@gmail.com

The purpose of the work is studying the efficiency of spraying application to improve the reliability of TPPs power equipment. A feasibility study indicated that the introduction of spraying technology can reduce losses in case of TPPs emergency shutdowns by 1.5-3,0 times a year, and the estimated extension of the service life of surfaces increases by 1.7-2.5 times. Since the main type of wear in the water economiser (WE) of TPP boilers is ash wear, and corrosion between the spacing bars, a comprehensive solution was proposed for the problem of extending the service life of boiler shield tubes and economiser tubes through development of new heat-resistant and wear-resistant gas-thermal coatings. 24 Ref., 7 Tabl., 14 Fig.
Keywords: spraying, welding, thermal power plant, ash wear, corrosion, electric arc coating


Received: 20.08.2021

References

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