高级检索
王雨欣, 王志文, 张梦洁, 孟凡光, 宋永兴, 张林华. 高压喷嘴流动机理与结构优化设计研究[J]. 真空科学与技术学报. DOI: 10.13922/j.cnki.cjvst.202405004
引用本文: 王雨欣, 王志文, 张梦洁, 孟凡光, 宋永兴, 张林华. 高压喷嘴流动机理与结构优化设计研究[J]. 真空科学与技术学报. DOI: 10.13922/j.cnki.cjvst.202405004
WANG Yuxin, WANG Zhiwen, ZHANG Mengjie, MENG Fanguang, SONG Yongxing, ZHANG Linhua. Flow Mechanism and Structure Optimization Design of High-pressure Nozzle[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY. DOI: 10.13922/j.cnki.cjvst.202405004
Citation: WANG Yuxin, WANG Zhiwen, ZHANG Mengjie, MENG Fanguang, SONG Yongxing, ZHANG Linhua. Flow Mechanism and Structure Optimization Design of High-pressure Nozzle[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY. DOI: 10.13922/j.cnki.cjvst.202405004

高压喷嘴流动机理与结构优化设计研究

Flow Mechanism and Structure Optimization Design of High-pressure Nozzle

  • 摘要: 高压喷嘴作为高压水射流系统中的一个重要元件,其构造和特性直接影响高压水射流清洗系统性能的优劣,因此对高压喷嘴结构的研究具有非常重要的意义。本文通过对高压喷嘴进行结构设计、模型建立、数值模拟、结果分析,将靶面打击压强及打击面积作为主要的分析参数,对不同喷嘴结构和靶距下的高压水射流特性进行分析,得出最优的高压喷嘴结构以及打击距离。结果表明:渐缩形喷嘴的出口流量比锥形喷嘴出口流量增加了4.2%,比流线形喷嘴出口流量增加了1.6%;渐缩形喷嘴冲击靶距由50.68 mm减小到10 mm时,射流大于10 MPa的平均动压力值由27.2 MPa增加到31.9 MPa,射流大于40 MPa的平均动压力值由47.9 MPa增加到66.9 MPa;对应射流靶距为30 mm时,大于10 MPa的有效冲击面积最大,可达到8.3 cm2

     

    Abstract: The high-pressure nozzle is an important component in the high-pressure water jet cleaning system, and the structure of the nozzle directly affects the effectiveness of high-pressure water jet cleaning, Therefore, the research on high-pressure nozzles is of great significance. This article conducts structural design, model establishment, numerical simulation, and result analysis of high-pressure nozzles. The target impact pressure and jet velocity are important analytical parameters, and the impact of different nozzle structures and target distances on the dynamic performance of ultra-high pressure water jets is analyzed. The optimal high-pressure nozzle structure and the most reasonable impact distance are obtained. The results show that the jet velocity of the tapered nozzle is 4.2% higher than that of the conical nozzle and 1.6% higher than that of the streamlined nozzle. When the impact target distance of the tapered nozzle decreases from 50.68 mm to 10 mm, the average dynamic pressure value of the jet greater than 10 MPa increases from 27.2 MPa to 31.9 MPa, and the average dynamic pressure value of the jet greater than 40 MPa increases from 47.9 MPa to 66.9 MPa; When the corresponding target distance is 20 mm, the effective impact area greater than 10 MPa is maximum, reaching 8.3 cm2.

     

/

返回文章
返回