Abstract
Taking the limestone gypsum wet desulfurization oxidation air duct of a 660 MW coal-fired unit in a power generation enterprise as the research object, a new type of oxidation air bubble crushing and retention device with a wing span baffle structure was simulated and optimized using CFD numerical simulation technology. The results showed that the retention time of bubbles in the slurry in the final design scheme was about 10.4 seconds, significantly better than the initial scheme’s 8.5 seconds and the comparison scheme 1’s 6.5 seconds. The new oxidation air bubble crushing and retention device significantly increases the retention time of oxidation air bubbles in the slurry, reduces the size of oxidation air bubbles, and improves the distribution uniformity of oxidation air in the slurry pool.
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