Application of Swirl Spray Technology in 464 000-m3/h Wet Flue Gas Desulphurization

doi:10.11930/j.issn.10.11930.2015.8.130

Abstract

Abstract: In order to solve the problem of low desulfurization efficiency caused by the uneven flow field, small gas-liquid contact area and short contact time in the mass transfer between flue gas and slurry in the tranditional absorption tower, the efficient in-depth desulfurization with swirl spray technology is proposed, which makes full use of the two-phase spray for ultra-fine atomizing and achieves the goals of improving desulfurization efficiency and saving energy. This technology is applied in the desulfurization modification project of a power plant with the flue gas volume of 460 000-m3/h, that is, a slurry swirl spraying layer is added to the original absorption tower. The measurement results show that the desulfurization efficiency is increased by about 6.5% with the outlet SO2 mass concentration lower than 20 mg/m3. In addition, the spraying layer and the swirl spraying layer can be adjusted according to the sulfur contents in the coal to save the system energy consumption.

Key words: flue gas, wet flue gas desulfurization (WFGD), swirl, atomization, energy saving

CLC Number:

TM621.9
X511

LIU Dingping, LU Peiyu. Application of Swirl Spray Technology in 464 000-m3/h Wet Flue Gas Desulphurization[J]. journal1, 2015, 48(8): 130-134.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.8.130

https://www.electricpower.com.cn/EN/Y2015/V48/I8/130

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