超高压水射流喷嘴机构的设计及试验

doi:10.3969/j.issn.1671-7775.2015.05.005

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摘要针对城市路面标志线难以清除的问题,设计了一种可用于超高压水射流清洗系统的喷嘴机构,该机构特征在于错落分布的12个喷嘴的圆形清洗轨迹由内至外均匀分布,可一次性有效地清洗标志线的各个部位,提高整个清洗过程的效果和效率．为考察喷嘴靶距、系统压力和清洗速度对喷嘴机构清洗效果的影响,以不同厚度标志线为对象进行清洗试验．针对2种不同厚度的标志线,总结了易获得最佳清洗效果的参数组合．结果表明:易获得最佳清洗效果的喷嘴靶距为27 mm,清洗速度为3～4 m?min-1,系统压力为100～120 MPa．

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关键词 ：喷嘴机构, 路面标志线, 高压水射流, 喷嘴靶距, 清洗试验

Abstract：To solve removing difficulty of road stripes, a special nozzle mechanism was designed for the removing system of ultra high pressure water stream. Twelve nozzles were set up in picturesque disorder, and the nozzle circular tracks were evenly distributed from internal centre to external side to remove road stripes effectively at one time and improve removing effect and efficiency. To investigate the removal effects of distance from nozzle to target, system pressure and removal velocity, the experiments of removing road stripes with different depth were designed and carried out. The combined values of parameters were provided to easily obtain the best effect of removing road stripes.The results indicate that the best effect of removing road stripes can be easily obtained when the distance from nozzle to target is 27 mm with removal velocity between 3 and 4 m?min-1 and system pressure between 100 and 120 MPa.

Key words： nozzle mechanism road stripe high pressure water stream distance from nozzle to target removal experiment

收稿日期: 2014-09-15

基金资助:

江苏大学高级人才启动基金资助项目(10JDG058)

作者简介: 杨志贤(1978—)，男，江西吉安人，副教授 (hiyoo@mail.ujs.edu.cn )，主要从事甲虫生物材料的仿生研究. 相明明（1989—），男，江苏赣榆人，硕士研究生（158598038@qq.com），主要从事机械CAD与CAE研究.

引用本文:

杨志贤, 相明明. 超高压水射流喷嘴机构的设计及试验[J]. 江苏大学学报（自然科学版）, 2015, 36(5): 522-526. Yang Zhixian, Xiang Mingming. Design and experiment of nozzle mechanism for ultra high pressure water stream[J]. Journal of Jiangsu University(Natural Science Eidtion) , 2015, 36(5): 522-526.

链接本文:

http://zzs.ujs.edu.cn/xbzkb/CN/10.3969/j.issn.1671-7775.2015.05.005 或 http://zzs.ujs.edu.cn/xbzkb/CN/Y2015/V36/I5/522