摘要
针对扇形喷嘴的弊端,设计出一种新型热态除鳞喷嘴。喷嘴主要利用射流打击力和水蒸汽膨胀破裂力共同完成除鳞工艺。通过对该喷嘴进行数值计算与试验研究表明:该喷嘴五股射流束之间相互影响,外围射流束发散速度快,中间射流束发散速度慢;喷嘴射流打击力分布不均匀,打击力随靶距增加而减小,同一靶距时,中间射流束打击力大,外围射流束打击力小。最后,通过将该喷嘴应用于热态除鳞生产线,证实了该喷嘴在工业上的可行性,同时也表明该喷嘴还应进一步优化设计。
It designs a new type high-pressure water jet nozzle in descaling qfter considering the disadvantages of fan nozzle. This type nozzle depends on the hitting power and the wtpor expand bursting force to accomplish the descaling technics. The numerical simulation calculation and the experimental research reveals that water jets are influenced by the adjacent water jet in this type nozzle and the outer water jets spreads feaster than the inner water jets. The jet hitting power becomes weak along with the water-jet distance becoming long. When in the same water-jet distance, the jet hitting power of the outer water jet is weaker than the inner water jet. At last, this type nozzle is applied in thermal descaling production line. It is confirmed that this type nozzle is adequate for industry, but it hat to make an optimization design.
出处
《机械设计与制造》
北大核心
2014年第1期91-93,96,共4页
Machinery Design & Manufacture
关键词
新型喷嘴
高压水射流
数值仿真
试验研究
热态除鳞
New Type Nozzle
High-Pressure Water Jet
Numerical Simulation
Experimental Research
Thermal Descaling
