袋式除尘器喷管喷吹口径优化

发布时间：2018-03-08 14:47

本文选题：喷吹口径　切入点：质量流量　出处：《环境工程学报》2016年11期 　论文类型：期刊论文

【摘要】：喷管喷吹均匀是为了使同一排滤袋清灰力度均匀。针对袋式除尘器喷管喷吹气流均匀性的问题,国内外学者对各喷嘴出口气流质量流量的均匀性十分关注。采用流体力学fluent软件对喷管内流场进行模拟,提出了同一排滤袋清灰强弱分布受到各喷嘴出口气流的动量通量分布的影响,而不是质量流量的看法。对引射空间流场进行模拟,验证了这一看法。结果表明,为了达到喷管喷吹均匀,应使各喷嘴出口气流动量通量分布均匀。采用动量通量修正和重复迭代的方法对喷管喷吹口径进行优化设计,获得了较好的动量通量均匀性。
[Abstract]:The purpose of uniform nozzle blowing is to make the same filter bag clean evenly. In order to solve the problem of the uniformity of air flow in the nozzle of bag precipitator, Scholars at home and abroad pay great attention to the uniformity of mass flow at the nozzle outlet. The fluid dynamics fluent software is used to simulate the flow field in nozzle. It is proposed that the distribution of ash removal intensity in the same filter bag is influenced by the momentum flux distribution at the outlet of each nozzle rather than the mass flow rate. The simulation of the ejection space flow field verifies this view. In order to achieve the nozzle injection uniformity, the momentum flux distribution at the nozzle outlet should be uniform. The momentum flux correction and iterative method were used to optimize the nozzle nozzle diameter, and a better momentum flux uniformity was obtained.
【作者单位】：重庆大学煤矿灾害动力学与控制国家重点实验室;重庆大学资源及环境科学学院;四川省四维环保设备有限公司;
【基金】：国家自然科学基金资助项目(50728504)
【分类号】：X701.2

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