Skip to main content
SpringerLink
Log in

Features of erosion-corrosion wear in low-pressure evaporators of combined-cycle plant heat-recovery boilers at high void factor values

  • Steam-Turbine, Gas-Turbine, and Combined-Cycle Plants and Their Auxiliary Equipment
  • Published:
Thermal Engineering Aims and scope Submit manuscript

Abstract

The features of erosion-corrosion wear (ECW) in a low-pressure evaporator (LPE) combinedcycle plant (CCP) at high void factor values in the heat carrier are considered. It is shown that if the medium pressure in the evaporator is less than 1 MPa and steam quality x ≈ 0.5, the void fraction β is close to 1, at the outlet of the evaporator almost dry saturated steam moves, and the formation of liquid films is excluded. Under these conditions, the wear of the evaporator coil sections has an erosive nature, caused by high velocity steam, carrying the dense particles of corrosion products and large drops of water, previously plucked from the surface of the liquid films.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Hydraulic Design of Boiler Units. A Standard Method (Energ. Moscow, 1978) [in Russian].

  2. V. I. Nikitin, I. I. Belyakov, and V. I. Breus, “Damage to steam-generating tubes of low-pressure circuit of drum-type heat-recovery boiler used in the PGU-450 combined-cycle unit at Severozapadnaya cogeneration plant,” Thermal Engineering 56(2), 124 (2009).

    Article  Google Scholar 

  3. D. Daniels, “How to identify, prevent waterside failure mechanisms in your HRSG,” Combined Cycle. Quarter 3 (2005).

    Google Scholar 

  4. Features of Operation and the Defectiveness of the Binary Cycle Plants of Recovery Boilers (Energoatomizdat., Moscow, 2008) [in Russian].

  5. T. I. Petrova and P. M. Gotovtsev, “Erosion-corrosion wear in heat power stations and power stations with combined cycle plants,” Energetik, No. 7, 40–44 (2011).

    Google Scholar 

  6. Yu. P. Kurochkin, N. S. Galetsky, and A. L. Schwarz, “Transformation of tower-shaped recovery boilers to natural circulation in order to prevent the wear of the outlet bends of low-pressure evaporators,” Elektr. Stn., No. 4, 6–8 (2009).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. All-Russia Thermal Engineering Institute, ul. Avtozavodskaya 14, Moscow, 115280, Russia

    N. S. Galetsky & A. L. Schwarz

Authors
  1. N. S. Galetsky
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. L. Schwarz
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Original Russian Text © N.S. Galetsky, A.L. Schwarz, 2013, published in Teploenergetika.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Galetsky, N.S., Schwarz, A.L. Features of erosion-corrosion wear in low-pressure evaporators of combined-cycle plant heat-recovery boilers at high void factor values. Therm. Eng. 60, 917–920 (2013). https://doi.org/10.1134/S0040601513120082

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0040601513120082

Keywords

Search

Navigation