STUDY OF CORROSION CAUSE ON EVAPORATOR TUBES IN THE COMBUSTION CHAMBER OF THE STEAM BOILER

1 MARŠÁL Robert
Co-authors:
2 PODJUKLOVÁ Jitka 3 SIOSTRZONEK René 4 PAVELKOVÁ Daniela 5 KOLDOVÁ Lenka
Institutions:
1 VŠB - Technical university of Ostrava, Ostrava, Czech Republic, EU, robert.marsal.st@vsb.cz
2 VŠB - Technical university of Ostrava, Ostrava, Czech Republic, EU, jitka.podjuklova@vsb.cz
3 VŠB - Technical university of Ostrava, Ostrava, Czech Republic, EU, rene.siostrzonek@vsb.cz
4 VŠB - Technical university of Ostrava, Ostrava, Czech Republic, EU, daniela.pavelkova@vsb.cz
5 VŠB - Technical university of Ostrava, Ostrava, Czech Republic, EU, lenka.koldova@tiscali.cz
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
1000-1006
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
102 views / 21 downloads
Abstract

The paper solves the cause and character of the damages of tubes, or evaporator tubes made of refractory carbon steel L290NB, used for the evaporators of combustion chambers of steam boilers used for production of steam, and necessary for subsequent production of electricity. Based on the evaluation of steel samples defected by perforation with incrustation deposit, the mechanism degrading the material of evaporator boiler tubes was discovered. The higher temperature in the combustion chamber, higher content of alkalizing solution of P2O5 and presence of copper ions are the cause of such degradation.

Keywords: surface, corrosion, tube, analysis, steam.

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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