Effect of jet airflow deflection on cleaning performance of filter cartridge

Autor: Ling, Ren, Na, Yuan, Longyuan, Lin, Chunhong, He, Cuiying, Tang, Zhiyong, Xu
Rok vydání: 2022
Předmět:
Zdroj: Environmental Science and Pollution Research. 29:27510-27520
ISSN: 1614-7499
0944-1344
DOI: 10.1007/s11356-021-18028-7
Popis: Pleated cartridge filters are widely used to remove dust in industrial processes. However, pulse-jet cleaning is not uniform on the filter cartridges. The phenomenon of pulsed jet airflow deflection exists during pulse jet cleaning, which causes a large impact on the local area of filter cartridge and shortens the service life of the filter cartridge. But perhaps due to the lack of effective testing methods, the impact of pulsed jet deflection on dust cleaning is often ignored. Under more comprehensive conditions, such as jet pressures, jet distance, and jet-hole diameter, the influence of the pulsed jet airflow deflection on the cleaning performance of the filter cartridge has been discussed systematically, by testing the peak static pressure on the side wall of the filter cartridge. The experimental results show that the sidewall peak static pressure of the face-flow surface of the filter cartridge is greater than that of the back-flow surface due to deflection, and the difference between the two is proportional to the jet-hole diameter and jet pressure. After installing the diversion nozzle, the results show that the peak static pressures of the face-flow and back-flow surfaces are basically the same. Therefore, it is proved that the diversion nozzle can effectively correct the jet airflow deflection.
Databáze: OpenAIRE
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