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Experimental research on atomization process and dust reduction performance of swirl pressure nozzle

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Abstract

In this study, experimental studies on atomization process and dust reduction performance of four swirl nozzles with different inlet/outlet diameter ratio (D) were performed. The results of the atomization process study of the nozzle show that with the increase of D, the droplet breakup range of the spray field is gradually increasing, but the droplet breakup intensity of the spray field is gradually decreasing. At D = 3.33 and 3.63, droplet breakup occurs mainly in the range of 0–4 mm in the strong turbulent region. At D = 3.75, droplet breakup occurs mainly in the range of 0–2 mm in the strong turbulent region. At D = 3.96, droplet breakup occurs mainly in the range of 0–1 mm in the strong turbulent region. Droplet breakup in the spray field at D = 3.33 and D = 3.67 was better than that at D = 3.75 and D = 3.96. From the dust reduction experimental results, the dust reduction efficiency increases and then decreases with the increase of D. The dust reduction efficiency is highest among the four nozzles at D = 3.67. Based on the dust reduction curves of four different D of nozzles, it is predicted that the optimal dust reduction condition will be achieved at D of 3.60, which provides a reference for the design and optimization of nozzles.

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Funding

This work was financially supported by the National Natural Science Foundation of China (Grant nos. 51904171, 52004150), the Qingchuang Science and Technology Project of Universities in Shandong Province, China (Grant no. 2019KJH005), the Science and Technology Project of Qingdao City, China (Grant no. 20-3-4-2-nsh), the Outstanding Young Talents Project of Shandong University of Science and Technology (Grant no. SKR22-5-01) and the Basic Research on Air Purification and Occupational Health of Coal Mines in Shanbei Mining Area & Key Technical Equipment and Demonstration (Grant no. SMHLL-JS-YJ-2020006), the Natural Science Foundation of Shandong Provenience, China (Grant no. ZR2019BEE067).

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Authors and Affiliations

  1. College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China

    Gang Zhou, Ruixin Song, Wenyu Yang & Cuicui Xu

  2. State Key Laboratory of Mining Disaster Prevention and Control Co-Founded By Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, 266590, China

    Gang Zhou, Ruixin Song, Wenyu Yang & Cuicui Xu

  3. Department of Mechanics, Huazhong University of Science and Technology, Wuhan, 430074, China

    Junpeng Wang

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  1. Gang Zhou
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  2. Junpeng Wang
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  3. Ruixin Song
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  4. Wenyu Yang
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  5. Cuicui Xu
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Contributions

Gang Zhou: funding acquisition. Junpeng Wang: conceptualization, methodology, software, data curation, writing — original draft, writing — review and editing. Ruixin Song: investigation. Cuicui Xu: supervision, project administration. Yang Wenyu: validation.

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Correspondence to Cuicui Xu.

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Zhou, G., Wang, J., Song, R. et al. Experimental research on atomization process and dust reduction performance of swirl pressure nozzle. Environ Sci Pollut Res 29, 88540–88556 (2022). https://doi.org/10.1007/s11356-022-21394-5

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  • DOI: https://doi.org/10.1007/s11356-022-21394-5

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