圆周式脉冲喷吹对滤筒清灰均匀性的影响Effect of circular pulse injection on uniformity of dust cleaning in filter cartridges
杨光辉,周美伊柏,林涛,黄琬岚,谢智宇,林龙沅,陈海焱
摘要(Abstract):
为了探究圆周式脉冲喷吹对滤筒清灰均匀性的影响,改变喷吹压力,研究最优喷吹距离下的喷嘴与内置旋转器2种不同的脉冲喷吹方式下,侧壁压力沿滤筒轴向和水平圆周方向上的分布特性。结果表明:在使用普通喷嘴时,沿滤筒轴向方向至上向下的侧壁压力逐渐增大,下部压力大于中、上部;在使用内置旋转器时,滤筒侧壁压力分布为上部压力小,中部和下部压力相差不大。在滤筒水平圆周方向上,侧壁压力峰值并不是完全对称,相较与普通喷嘴,内置旋转器在水平圆周方向的侧壁压力峰值差均不超过100 Pa,且各测点压力标准偏差较普通喷嘴显著降低48.14%~95.38%,说明圆周式脉冲喷吹均匀性更优。圆周式脉冲喷吹能明显提升滤筒中部清灰强度和在滤筒轴向和水平圆周方向上的清灰均匀性,同时减小脉冲气流对底部的冲击,改善滤筒下部滤料破损的问题。
关键词(KeyWords): 脉冲喷吹;清灰;喷吹压力;喷吹距离;内置旋转器
基金项目(Foundation): 国家自然科学基金项目,编号:52204286;; 四川省科技计划资助项目,编号:2023YFS0362
作者(Author): 杨光辉,周美伊柏,林涛,黄琬岚,谢智宇,林龙沅,陈海焱
DOI: 10.13732/j.issn.1008-5548.2023.06.012
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