Abstract
In this study, we investigated the influence of tubular nozzle and upper opening diffuser on the performance of pulse-jet dust cleaning of filter cartridges through experimental tests. The optimal tubular nozzle injection distance was 200 mm, the sidewall pressure increased along the height of the filter cartridge, and the pressure at the lower part of the filter cartridge was much higher than that at the upper part. However, under the upper open diffuser, the uniformity of the pressure distribution along the height of the cartridge was effectively improved. Combined with the entropy weight method and considering the peak pressure and pressure uniformity, the integrated pressure was proposed as a comprehensive index to evaluate the dust cleaning effect on filter cartridges. this result was verified using data from the literature，and can be used to evaluate the dust cleaning effect of filter cartridges.
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