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首页> 外文会议>Tenth International Conference on Modelling, Monitoring and Management of Air Pollution Jul, 2002 City of Segovia >Contribution to improvement of cleaning efficiency of pulse-jet fabric filters
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Contribution to improvement of cleaning efficiency of pulse-jet fabric filters

机译：有助于提高脉冲式织物过滤器的清洁效率

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摘要

Uniform distribution of compressed air in a blow pipe is an important consideration in the efficient use of compressed air for pulse-jet cleaning of fabric filters. It influences the consumption of compressed air, operational costs for filtration, and particle penetration through the filter. This paper reviews recent developments in this area. A formula for compressed air consumption per pressure pulse is derived, based on the pressure drop in the air vessel and polytropic change in the air state in the vessel during the pulse with the coefficient near to adiabatic change. A criterion for uniform distribution of compressed air in the blow tube is derived, based on the constant flow momentum of jets from nozzles in the blow pipe. By analysing the measured pressures along different blow tubes, a procedure for designing the diameter of the holes in the blow pipe is proposed, using only the inner diameter of the blow pipe and the number and nominal diameter of the cylindrical holes. A simplified mathematical model for the distribution of compressed air in the blow tube is described. Very good agreement between calculated and measured values has been achieved.
机译：压缩空气在吹管中的均匀分布是有效压缩空气用于织物过滤器脉冲喷射清洁的重要考虑因素。它影响压缩空气的消耗，过滤的运行成本以及颗粒通过过滤器的渗透。本文回顾了该领域的最新发展。基于在脉冲期间具有接近绝热变化的系数的空气容器中的压降和容器中空气状态的多相变化，得出每个压力脉冲的压缩空气消耗量的公式。根据吹管中喷嘴的恒定射流动量，得出吹管中压缩空气均匀分布的标准。通过分析沿不同吹管的测量压力，提出了仅使用吹管的内径以及圆柱孔的数量和公称直径来设计吹管中孔的直径的程序。描述了在吹管中分配压缩空气的简化数学模型。在计算值和测量值之间已经实现了很好的一致性。

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