Design and experiment on atomizer parameter of impinging low-speed centrifugal atomization sprayer

Dejiang Liu, Yan Gong, Xiao Chen, Xiao Zhang, Guo Wang

Abstract


Atomizers were designed with different atomization parameters to obtain droplets that satisfy optimal particle size requirements for an impinging-type low-speed centrifugal atomizing sprayer. The main factors affecting droplet size are turntable speed, the number of teeth and the tooth shape of the toothed disc. Winner318 software was used to evaluate droplet sizes for different structures and the working parameters of the atomizer. The response surface method and Design-Expert were used to analyze the effect of each factor. The response surface analysis of the effect of structural and working parameters of the atomizer on the interaction between the volume medium diameter of the droplet and the spectral width of the droplet size was used to establish the atomizer droplet Granular spectrum prediction model. Optimal design fitting formulas are obtained, and the droplet sizes required for pesticides to control flying insect pests, to control the growth of reptile larvae, and the use of spraying fungicides to prevent crop damage were determined. This research provides a product not only similar to those in the market, but also the theoretical basis and references for innovation, development, and optimization of centrifugal atomization technology.
Keywords: centrifugal atomization, impinging low-speed, droplets diameter, optimal biological particle size theory, quadratic regression analysis
DOI: 10.25165/j.ijabe.20201306.5617

Citation: Liu D J, Gong Y, Chen X, Zhang X, Wang G. Design and experiment on atomizer parameter of impinging low-speed centrifugal atomization sprayer. Int J Agric & Biol Eng, 2020; 13(6): 118–124.

Keywords


centrifugal atomization, impinging low-speed, droplets diameter, optimal biological particle size theory, quadratic regression analysis

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References


Yuan H. Pesticide use technical guide. Chemical Industry Press, 2011; pp.168–169. (in Chinese)

Zhao G, Liu J. Experimental research on the performance of two kinds of centrifugal spray nozzles. China Agricultural Mechanization, 2005; 2: 69–71. (in Chinese).

Zhou H, Yang X, Yan H, Zhang Z. Research and development of high ground clearance precision variable plant protection machinery. Agricultural Machinery, 2006; 9B: 35–36. (in Chinese)

Zhou H, Yang X, Yan H, Xu S. Test of rotary disc centrifugal nozzle of wind wheel. Journal of Agricultural Machinery, 2008; 10: 89–92.

Liu J. The study about appliance and technology of Cannon rotary-atomizing long-shot air-assisted spraying. Master dissertation. Yangling: Northwest A&F University, 2004; 65p. (in Chinese)

Peng J. The numerical simulation study of the inner flow field in the air-assisted hydraulic ultra-low volume sprayer device. Master dissertation. Wuhan: Wuhan University of Technology, 2006; 65p. (in Chinese)

Zhang X, Gong Y, Chen X, Liu D, Wang G. Research and application of controlled spraying intelligent pesticide application technology in facility

agriculture. Journal of Chinese Agricultural Mechanization, 2019; 40(11): 49–54.

Yang F, Xue X, Cai C, Zhou Q, Sun Z. Atomization performance test and influencing factors of special aviation centrifugal nozzles. Journal of Agricultural Machinery, 2019; 50(9): 96–104.

Wu J, Zhang R, Xu Y, Zhang Z, Zu J. Experimental research and numerical simulation of atomization characteristics of centrifugal nozzles. Fire Science and Technology, 2017; 36(12): 1685–1687

Yuan H, Wang G. The relationship between fog droplet size and coverage density and pesticide control effect. Journal of Plant Protection, 2015; 6: 9–16.

Brown R B, Sidahmed M M. Simulation of spray dispersal and deposition from a forestry airblast sprayer part II: droplet trajectory model. Transactions of the ASAE, 2001; 44(1): 11–17.

Beck J C, Watkins A P. The droplet number moments approach to spray modelling: the development of heat and mass transfer sub-models. International Journal of Heat and Fluid Flow, 2003; 24(2): 242–259.

Chapple A C, Taylor R A J, Hall F R. The transformation of spatially determined drop sizes to their temporal equivalents for agricultural sprays. Journal of Agricultural Engineering Research, 1995; 60(1): 49–56.

Cunningham G P, Harden J. Reducing spray volumes applied to mature citrus trees. Crop Protection, 1998; 17(4): 289–292.

Cross P, Edwards-Jones G. Variation in pesticide hazard from arable crop production in Great Britain from 1992 to 2002: Pesticide risk indices and policy analysis. Crop Protection, 2006; 25(10): 1101–1108.

Dekeyser D, Foque D, Duga AT, Verboven P, Hendrickx N, Nuyttens D. Spray deposition assessment using different application techniques in artificial orchard trees. Crop Protection, 2014; 64: 187–97.

Ebert T A, Downer R A. A different look at experiments on pesticide distribution. Crop Protection, 2006; 25(4): 299–309.

Katul G G, Mahrt L, Poggi D, Sanz C. One-and two-equation models for canopy turbulence. Boundary-Layer Meteorology, 2004; 113(1): 81–109.

Matthews G A, Thomas N. Working towards more efficient application of pesticides. Pest Management Science, 2000; 56(11): 974–976.

Phattaralerphong J, Sathornkich J, Sinoquet H. A photographic gap fraction method for estimating leaf area of isolated trees: assessment with 3D digitized plants. Tree Physiology, 2006; 26(9): 1123–1136.

Tokekar P, Vander Hook J, Mulla D, Isler V. Sensor planning for a symbiotic UAV and UGV system for precision agriculture. IEEE Transactions on Robotics, 2016; 32(6): 1498–1511.

Li H, He X, Zhong C. Multi-factor response surface model of the effect of charged fog droplet deposition. High Voltage Technology, 2007; 33(2): 32–36.

Zhu A. Research on formation and distribution of particles in centrifugal atomized plasma spray. China Surface Engineering, 2006; 19(4): 32–39.




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