The inner cone double-layer filter cartridges have the capability to guide the flow, which can optimize the airflow distribution inside the cartridge and reduce the cartridge's incomplete cleaning. However, the selection of different cone radius and nozzle heights can affect the cartridge's cleaning performance. More thorough investigations of the static pressure distribution properties within double-layer cartridges are required to improve their design and optimization. The results show that double-layer cartridges' peak static pressure at different nozzle heights has a similar distribution law. Peak static pressure increases progressively with cartridge height in the middle and lower sections (OM3-OM5, IM2-IM5), with the lower section having a larger peak static pressure. The cleaning performance of cartridges with a cone radius of R ≥ 80 mm is little impacted by the nozzle height. The stability of the cartridge's cleaning performance improves and then deteriorates as the cone radius increases, with the best cleaning effect and stability reached at R = 80 mm. In practical applications, double-layer filter cartridges with larger cone radius should be considered.

中文翻译：

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通过峰值静压分布表征喷嘴高度对不同锥体半径内锥双层滤筒清洗性能的影响

内锥双层滤芯具有导流能力，可以优化滤芯内部的气流分布，减少滤芯清洗不彻底的情况。然而，选择不同的锥体半径和喷嘴高度会影响滤筒的清洁性能。需要对双层滤筒内的静压分布特性进行更彻底的研究，以改进其设计和优化。结果表明，双层滤芯在不同喷嘴高度处的峰值静压具有相似的分布规律。中段和下段（OM3-OM5、IM2-IM5）的峰值静压随着滤芯高度的增加而逐渐增大，其中下段的峰值静压较大。锥体半径R≥80mm的滤筒清洗性能受喷嘴高度影响较小。滤筒清洗性能的稳定性随着锥体半径的增大先提高后恶化，在R=80 mm时达到最佳清洗效果和稳定性。实际应用中，应考虑使用锥体半径较大的双层滤筒。