负压吸气式雾化装置参数优化及降尘试验研究
发布时间：2018-11-04 18:31
【摘要】：通过雾化粒度,射流速度和负压值性能试验测试负压吸气式雾化装置的关键参数,并通过因素水平分析确定了最优的参数取值范围,最后进行降尘试验测试。试验结果表明:增大射流压力能明显提高液滴雾化效果;雾滴D_(50)随喷嘴直径的增大呈先减小后增加的抛物线变化规律;雾滴速度随喷嘴伸出量的增加表现出先增加然后稳定减小的趋势。通过正交分析确定喷嘴直径3.5 mm,喷嘴伸出量3 mm为最佳参数;通过负压值测试分析确定射流水压3 MPa为最佳参数。通过和轴流喷嘴降尘效果对比得到射流吸气式混合雾化装置的雾粒粒径降低了54.73%,对全尘的控尘效率提高了20.78%,尤其是呼吸性粉尘控尘效率提高了40.24%。
[Abstract]:The key parameters of the vacuum suction atomizer were tested by the test of atomization particle size, jet velocity and negative pressure, and the optimal range of the parameters was determined by the level analysis of the factors. Finally, the dust reduction test was carried out. The experimental results show that the droplet atomization effect can be improved obviously by increasing the jet pressure, and that the droplet D50 changes with the increase of nozzle diameter and then increases with the increase of the nozzle diameter. The droplet velocity increases first and then decreases stably with the increase of nozzle extension. Through orthogonal analysis, the nozzle diameter 3. 5 mm, nozzle outstretched 3 mm is determined as the best parameter, and the jet water pressure 3 MPa is determined as the best parameter by negative pressure test and analysis. Compared with the dust control effect of axial flow nozzle, it is found that the particle size of the jet suction mixed atomizer is reduced by 54.73, and the dust control efficiency of the whole dust is increased by 20.78, especially the dust control efficiency of the breathing dust is increased by 40.24.
【作者单位】： 太原理工大学机械工程学院;
【基金】：山西省自然科学基金资助项目(20140321014-02)
【分类号】：TD714.4
本文编号：2310781
[Abstract]:The key parameters of the vacuum suction atomizer were tested by the test of atomization particle size, jet velocity and negative pressure, and the optimal range of the parameters was determined by the level analysis of the factors. Finally, the dust reduction test was carried out. The experimental results show that the droplet atomization effect can be improved obviously by increasing the jet pressure, and that the droplet D50 changes with the increase of nozzle diameter and then increases with the increase of the nozzle diameter. The droplet velocity increases first and then decreases stably with the increase of nozzle extension. Through orthogonal analysis, the nozzle diameter 3. 5 mm, nozzle outstretched 3 mm is determined as the best parameter, and the jet water pressure 3 MPa is determined as the best parameter by negative pressure test and analysis. Compared with the dust control effect of axial flow nozzle, it is found that the particle size of the jet suction mixed atomizer is reduced by 54.73, and the dust control efficiency of the whole dust is increased by 20.78, especially the dust control efficiency of the breathing dust is increased by 40.24.
【作者单位】： 太原理工大学机械工程学院;
【基金】：山西省自然科学基金资助项目(20140321014-02)
【分类号】：TD714.4
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