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Standardization of the water heat carrier quality at Russian thermal power plants

  • Water Treatment and Water Chemistry
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Abstract

The necessity of developing a new industry-specific standard of the heat carrier quality for the operating, newly commissioned, and prospective power-generating units of the thermal power plants is substantiated. The need of extending the scope of the automatic chemical monitoring and the possibility of indirect measurements of some basic standardized and diagnostic indices of the water chemistry using the specific conductance are shown. Investigations proved the possibility of automatic chemical monitoring of the phosphating of the drum boilers and quantitative control of potentially acidic impurities in the feed water in oncethrough boilers. The normative STO NP INVEL document developed at OAO VTI in 2009 is proposed as the basis for alterations and amendments. A new index, the total organic carbon, is introduced into this document. The standardized value of this index in the drum boiler feed water and steam is 100 μg/dm3. According to the above normative document, the scope of the chemical monitoring should be extended by measurements of the specific conductance of the direct and H-cation samples of both the feed and the boiler water. The content of chlorides should also be standardized. For the first time, normative restrictions are suggested on amine-containing water chemistry of the power-generating units with the combined cycle gas turbines. Flowcharts are proposed for pretreatment of the make-up water on the basis of low-mineralized natural waters with high organic substance contents, which reduces the oxidizability by 70–80%.

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Authors and Affiliations

  1. Ivanovo State Power Engineering University, Ivanovo, 153003, Russia

    B. M. Larin & A. B. Larin

  2. OAO All-Russia Thermal Engineering Institute, Moscow, 115280, Russia

    S. Yu. Suslov & A. V. Kirilina

Authors
  1. B. M. Larin
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  2. A. B. Larin
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  3. S. Yu. Suslov
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  4. A. V. Kirilina
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Correspondence to B. M. Larin.

Additional information

Original Russian Text © B.M. Larin, A.B. Larin, S.Yu. Suslov, A.V. Kirilina, 2017, published in Teploenergetika.

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Larin, B.M., Larin, A.B., Suslov, S.Y. et al. Standardization of the water heat carrier quality at Russian thermal power plants. Therm. Eng. 64, 307–312 (2017). https://doi.org/10.1134/S004060151704005X

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  • DOI: https://doi.org/10.1134/S004060151704005X

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