基于流场特性数值模拟的袋式除尘器关键结构设计研究综述

流场特性是影响袋式除尘器净化效果、除尘效率和使用寿命的关键因素,是优化或评价设备设计合理性的依据.本文在袋式除尘器工作原理分析基础上,明确了目前袋式除尘器研发中需要解决的关键问题,阐述了袋式除尘器内部流场数值模拟方法、流场特征评价指标、以及流场分布的关键影响因素,并重点归纳总结了常见结构设计因素对袋式除尘器流场特性的基本影响规律.以期通过该综述,可以为改善袋式除尘器内部流场性能的用户提供可以参考的结构设计方法.

Review on key structure design of bag filter based on numerical simulation of flow field characteristics

Flow field characteristics are the key factors affecting the purification effect, dust removal efficiency and service life of bag filter, and are the basis for optimizing or evaluating the rationality of equipment design. Based on the analysis of the working principle of the bag filter, this paper clarifies the key problems to be solved in the current research and development of the bag filter, expounds the numerical simulation method of the internal flow field of the bag filter, the evaluation index of the flow field characteristics, and the key influencing factors of the flow field distribution, and emphatically summarizes the basic influence law of the common structural design factors on the flow field characteristics of the bag filter. It is hoped that this review can provide reference structural design methods for users to improve the internal flow field performance of bag filter.