| Issue |
E3S Web Conf.
Volume 360, 2022
2022 8th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2022)
|
|
|---|---|---|
| Article Number | 01044 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/e3sconf/202236001044 | |
| Published online | 23 November 2022 | |
Experimental study on combustion optimization of four-corner tangential boiler for alleviating high temperature corrosion
Shanghai Institute of Special Equipment Inspection and Technical, Shanghai 200062, China
* Corresponding author: 724354507@qq.com
In order to reduce the volume fraction of H2S in the water wall area of the four-corner tangential boiler and achieve the purpose of alleviating the high temperature corrosion of the water wall, a thorough test was carried out on the 600MW boiler. The results show that the high temperature corrosion of the water wall under high load is obviously more serious than that under low load, the high temperature corrosion of the water wall of the front wall is more serious than that of the other walls, and the high temperature corrosion of the furnace wall area downstream of the burner is generally higher than that of the other walls. Other areas. The reason for this phenomenon is that the uniformity of the pulverized coal quantity in each pulverized tube is large, the air distribution is unreasonable, the primary and secondary air are separated, and the secondary air cannot completely cover the primary air; The uniformity of pulverized coal distribution, the proper increase of the total air volume, and the proper increase of the perimeter air volume can significantly reduce the volume fraction of H2S in the water wall area and alleviate high temperature corrosion.
© The Authors, published by EDP Sciences, 2022
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