水气同轴喷嘴结构对提高水射流喷射能力的影响  

Influence of structure of air-water coaxial nozzle on improvement of water-jet capacity

作　　者：张彬[1,2] 任立侠 黄建喜 宋志彬[4] 

机构地区：[1]渤海石油职业学院石油工程系,河北任丘062552 [2]中国地质大学工程技术学院,北京800013 [3]渤海石油装备制造有限公司石油机械厂,河北任丘062552 [4]中国地质科学院勘探技术研究所,河北廊坊065000

出　　处：《兰州理工大学学报》2011年第6期47-50,共4页Journal of Lanzhou University of Technology

基　　金：中国地质科学院地质调查项目(F5.4.2)

摘　　要：采用结构合理的水气同轴喷嘴可以解决气体保护内部水射流的问题,能有效提高水射流能力.通过数值模拟的方法对比3种典型的气喷嘴对水射流的影响,找出各喷嘴组合的主要缺点,经改进调整后得到优化的气喷嘴结构.通过模拟试验和现场试喷验证,优化的喷嘴结构不但能增强水射流能力,而且对气喷嘴寿命的提高也有较好的效果.Adopting structurally rational air-water coaxial nozzle, the problem of air-protected water-jet in the nozzle can be dealt with and the ejection capacity enhanced effectively. The method of numerical simu- lation was used to compare the influence of these three typical air-nozzles on the water-jet. The feasible air- nozzle structures were obtained by analyzing the main flaws of the three air-nozzles and improving them. It was verified by the proceed of simulation test and on-site test that the feasible air-nozzle could not only enhance the ejection capacity but also prolong the nozzle service life.

关 键 词：水气同轴喷嘴 数值模拟 水射流 气喷嘴 射流能力 

分 类 号：TV871[水利工程—水利水电工程]