Niskotemperaturna korozija u vrelovodnim kotlovskim postrojenjima

  • U toku eksploatacije došlo je do oštećenja cevi eko-paketa vrelovodnog kotlovskog postrojenja koje funkcioniše u režimu sa periodičnim prekidima u radu. Cilj ovog rada je da se utvrdi uzrok oštećenja cevi koji je nastao sa strane dimnih gasova. Izvršene su hemijske analize mazuta, depozita i dimnih gasova, merenje pH vrednosti rastvora depozita i kvalitativna optičko-mikroskopska analiza depozita. Pored toga su definisani i uslovi pod kojima je postrojenje radilo. Rezultati su pokazali značajne količine gvožđa u depozitu, kao i nisku pH vrednost rastvora depozita. Oštećenja cevi su najverovatnije bila posledica niskotemperaturnih korozionih procesa u toku rada i u periodima prekida rada postrojenja. Pretpostavka je da je koroziono oštećenje kotlovskih cevi bilo intenzivnije u periodima prekida rada postrojenja.

  • Ključne reči
  • Stranice
    251 - 261
  • UDC
    621.1:620.193.46/.47
  • BIBLID
    0350-218X, 35 (2009), 3-4, 251-261
  • Reference
    • EIA, International Energy Outlook 2000, Energy Information Administration, US Department of Energy, Washington, 2000
    • Barroso, J., Barreras, F., Ballester J., Behaviour of a High-Capacity Steam Boiler Using Heavy Fuel Oil, Part I: High Temperature Corrosion, Fuel Procesing Technology, 86 (2004), 22, 89-105
    • Rahman, M. M., et al., Evaluation of Fuel Chemical Additives to Reduce Corrosion and Stack Emission in SWCC Power Plants, Presented at 4th SWCC Acquired Experience Symposium, Jeddah, Saudi Arabia, 2005
    • Wright, I. G., Hot Corrosion in Coal- and Oil-Fired Boilers, Chapter: Corrosion in Fossil Fuel Power Plants, in: Metal Handbook, 1987, Vol. 13/I, 995
    • Barreras, F., Barroso, J., Behaviour of a High-Capacity Steam Boiler Using Heavy Fuel Oil, Part II: Cold-End Corrosion, Fuel Procesing Technology, 86 (2004), 2, 107-121
    • Mayan Kutty, P. C., Dalvi, A. G., Evaluation of Chemical Fuel Additives to Control Corrosion and Emission in Dual Purpose Desal/Power Plants, Presented at IDA Conference, Abu Dhabi, 1995
    • Andijani, I., Malik, A. U., Sulfur and Vanadium Induced Hot Corrosion of Boiler Tubes, Saline Water Conversion Corporation, Research & Development Center, Presented at “Chemistry & Industry” Conference, King Saud University, Riyadh, 2004
    • Bludszuweit, S., et al., Mechanisms of High Temperature Corrosion in Turbochargers of Modern Four-Stroke Marine Engines, Proceedings, Motor Ship Conference, Amsterdam, 2000, 1-22
    • Vögtle, G., Einsatz von Kraftstoffen schlechter Qualität in Dieselmotoren, Schiff & Hafen, (1978), 8, 690-692
    • Ganapathy, V., Cold End Corrosion: Causes and Cures, Hydrocarbon Processing, 68 (1989), Jan., 57-59
    • Ošljanac, B., Neki korozioni problemi plameno‡dimne strane kotla, Integritet i vek konstrukcija, 7 (2007), 2, 96‡100
    • Katavić, B., Jegdić, B., Analiza oštećenja ekranskih cevi ložišta vrelovodnog kotla, Zavarivanje i zavarene konstrukcije, 52 (2007), 4, 123‡130
    • Huijbregts, W. M. M., Leferink, R., Latest Advances in the Understanding of Acid Dew Point Corrosion: Corrosion and Stress Corrosion Cracking in Combustion Gas Condensates, Anti-Corrosion Methods and Materials, 51 (2004), 3, 173-188
    • Otsuka, N., Effects of Fuel Impurities on the Fireside Corrosion of Boiler Tubes in Advanced Power Generating Systems – a Thermodynamic Calculation of Deposit Chemistry, Corrosion Science, 44 (2002), 2, 265-283
Kako citirati ovaj rad?
Dodatne reference o radu
Gornji linkovi su isključivo informativnog karaktera i postoji mogućnost da sadrže pogrešne ili nepotpune informacije.