The Paton Welding Journal, 2019, №05



2019 №05 (03)

DOI of Article 10.15407/tpwj2019.05.04

2019 №05 (05)

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The Paton Welding Journal, 2019, #5, 28-35 pages
 
Journal The Paton Welding Journal
Publisher International Association «Welding»
ISSN 0957-798X (print)
Issue #5, 2019 (May)
Pages 28-35

Gas-powder spraying as a high-efficient method of increasing the operation reliability of power equipment

A.V. Gruzevich^1,2 and D.A. Derecha^2,3

¹Tripolskaya TPP 08720, Ukrainka. E-mail: Gruzevich@bigmir.net
²Institute of Magnetism of the NAS of Ukraine and MES of Ukraine 36b Academician Vernadsky Blvd., 03142, Kyiv, Ukraine
³National Technical University of Ukraine «Igor Sikorsky Polytechnic Institute» 57 Peremohy Prosp., 03056, Kyiv, Ukraine

In the work the spraying is suggested as the promising and high-efficient method for improvement of operation reliability of TPP power equipment. As the main type of wear of pipe elements of TPP power equipment is the ash wear and corrosion, then to increase their reliability, service life and working capacity it is suggested to apply the electric arc spraying using material PP 70Kh10R3Yu5 as a method of thermal modification of heating surfaces. The aim of the work is the investigation of efficiency of spraying application for improving the operation reliability of TPP power equipment. Spraying of heating surfaces was carried out in two thermal power plants of PJSC «Centrenergo» in 2013. A feasibility study showed that the implementation of spraying technology allows 1.5–2.0 times decreasing the expenses as compared with losses, incurred by TPP in case of emergency shutdowns, and increasing the service life of the equipment approximately by 1.4 times. 15 Ref., 7 Tables, 12 Figures.
Keywords: spraying, power equipment, pipes, bends, reliability, boilers, economizer, thermal power plant

 
Received: 27.02.19
Published: 30.05.19
 
 

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