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Studying the Dependence of the Life of Convection Superheaters of the Number of Damaged Coils

Bogachev, V. A. / Pshechenkova, T. P.

The life of a high-pressure convection superheater with damaged coils and a low-pressure superheater of the second stage of a TGMP-314 boiler is analyzed numerically. The dependence of the temperatures of steam, metal, and flue gas at the outlet of the coil banks on the number of plugged coils is established. It is shown that plugging gives rise to sparse banks with overheated coils, high-temperature gas plume that initiates overheating of the downstream tube banks, nonuniform softening of the metal, and reduction of the operational reliability of the superheaters.

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Studying the Dependence of the Life of Convection Superheaters of the Number of Damaged Coils

Bogachev, V. A. / Pshechenkova, T. P.

The life of a high-pressure convection superheater with damaged coils and a low-pressure superheater of the second stage of a TGMP-314 boiler is analyzed numerically. The dependence of the temperatures of steam, metal, and flue gas at the outlet of the coil banks on the number of plugged coils is established. It is shown that plugging gives rise to sparse banks with overheated coils, high-temperature gas plume that initiates overheating of the downstream tube banks, nonuniform softening of the metal, and reduction of the operational reliability of the superheaters.

Studying the Dependence of the Life of Convection Superheaters of the Number of Damaged Coils

Bogachev, V. A. / Pshechenkova, T. P.

The life of a high-pressure convection superheater with damaged coils and a low-pressure superheater of the second stage of a TGMP-314 boiler is analyzed numerically. The dependence of the temperatures of steam, metal, and flue gas at the outlet of the coil banks on the number of plugged coils is established. It is shown that plugging gives rise to sparse banks with overheated coils, high-temperature gas plume that initiates overheating of the downstream tube banks, nonuniform softening of the metal, and reduction of the operational reliability of the superheaters.

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Title:

Studying the Dependence of the Life of Convection Superheaters of the Number of Damaged Coils

Contributors:

Bogachev, V. A. (author) / Pshechenkova, T. P. (author)

Published in:

Power Technology and Engineering ; 51

Publication date:

2017

ISSN:

DOI:

https://doi.org/10.1007/s10749-017-0789-9

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

service life , convection superheater , damage , high-temperature gas plume , nonuniform metal softening , overheating , sparse bank , boiler

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