煤矿井下高压喷雾雾化特性研究

发布时间：2018-04-25 03:35

本文选题：高压喷雾 + 雾滴粒度　；参考：《环境工程学报》2015年09期

【摘要】：为分析煤矿井下高压喷雾雾化特性,采用自行设计的喷雾降尘实验系统,对雾滴粒径的空间分布以及雾化参数的影响因素进行了全面的研究。结果表明,沿喷嘴轴线方向,随着距喷嘴距离的增加,雾滴粒径不断增大;在离喷嘴一定距离的纵断面上,雾滴粒径由内向外不断增大,但增幅较小。随着喷雾压力的增加,喷嘴流量和雾流射程不断增大,而雾化锥角和雾滴粒径不断减小。在相同的喷雾压力下,随着喷嘴直径的增加,喷嘴流量和雾化锥角不断增大,而雾流射程基本保持不变;随着喷嘴直径的增加,喷雾形成的雾滴粒径也逐渐增加,且增幅越来越大。在相同耗水量下,随着喷嘴直径的增加,喷雾压力和雾流射程不断减小,而雾化锥角和雾滴粒径不断增大。
[Abstract]:In order to analyze the characteristics of high pressure spray atomization in coal mine, the space distribution of droplet size and the influencing factors of atomization parameters were studied comprehensively by using the self-designed spray dedusting experimental system. The results show that, along the axis of the nozzle, the droplet size increases with the increase of the distance from the nozzle to the nozzle, and the droplet size increases from the inside to the outside at a certain distance from the nozzle, but the increase is small. With the increase of spray pressure, the nozzle flow rate and spray flow range increase, while the atomization cone angle and droplet diameter decrease. Under the same spray pressure, with the increase of the nozzle diameter, the nozzle flow rate and the spray cone angle increase, while the spray flow range remains basically unchanged, and with the increase of the nozzle diameter, the droplet diameter of the spray gradually increases. And the increase is getting bigger and bigger. Under the same water consumption, with the increase of nozzle diameter, the spray pressure and spray flow range decrease, while the atomization cone angle and droplet diameter increase.
【作者单位】：湖南科技大学能源与安全工程学院;湖南科技大学煤矿安全开采技术湖南省重点实验室;
【基金】：国家自然科学基金资助项目(51574123) 湖南省自然科学基金青年人才联合培养基金资助项目(13JJB009)
【分类号】：TD714.4

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