Abstract
In this paper, the problems of combustion instability and high-temperature corrosion of pulverized coal fired boiler are investigated by numerical simulation and analysis of the momentum moment. Elbow and twisting plate type of burners are used in the boiler, and the reverse moment of momentum is formed at the outlet of the fuel-rich side of the burner. The momentum moment in the boiler is opposite to the designed tangential circle, and the tangential circle in the boiler is reversed rotation. The reverse moment of momentum at the burner outlet can be eliminated by using louver horizontal bias pulverized coal burner, while the problems of combustion instability and high-temperature corrosion of the boiler are solved, and the combustion efficiency is improved. Accordingly, economic benefit is obviously got.
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Foundation item: the Training Program Fund for Young Teachers in Shanghai Higher Education Institutions (No. 405ZK12YQ06)
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Guan, X., Zou, X. & Sun, S. Influence of the type of the pulverized coal concentrator on the operation of a tangential fired boiler with horizontal bias combustion. J. Shanghai Jiaotong Univ. (Sci.) 21, 450–456 (2016). https://doi.org/10.1007/s12204-016-1745-9
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DOI: https://doi.org/10.1007/s12204-016-1745-9
Keywords
- pulverized coal burner
- unsteady combustion condition
- high-temperature corrosion
- reversed rotation
- burner retrofit