文章摘要
石运序,王萍,徐尚武,童桂英.负压式引液阀结构设计及优化[J].机床与液压,2016,44(19):82-85
负压式引液阀结构设计及优化
Design and Optimization of Negative pressure Suction Valves Structure
  
DOI:10.3969/jissn1001-3881201619019
中文关键词: 负压式  引液阀  结构设计  流场仿真
英文关键词: Negative pressure  Suction fluid valve  Structure design  Flow field simulation
基金项目:山东省自然科学基金资助项目(ZR2014EEQ024);国家自然科学基金资助项目(51405416)
作者单位E-mail
石运序 烟台大学机电汽车工程学院 shiyunxu@126.com 
王萍 烟台大学机电汽车工程学院  
徐尚武 烟台大学机电汽车工程学院  
童桂英 烟台大学机电汽车工程学院  
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中文摘要:
      利用流体力学原理设计一新型负压式引液阀结构,阐述了负压产生机制,并利用FLUENT对阀体结构进行了优化。结果表明:所设计的负压式引液阀进气口距收缩口的距离越小,其所产生的真空吸附压力越大,但阀体内部流场紊流现象严重,部分压缩空气会反向流入吸附腔室,因此建议进气口距收缩口的距离为阀体内腔轴向长度5/8倍左右为宜;同时,收缩口与阀体流道轴线夹角越大所产生的负压越小,但夹角较小时,所产生的流阻也相应增加,且难于加工,因此建议收缩口与阀体流道轴线夹角取值30°。
英文摘要:
      The structure of a new negative pressure suction valve was designed and optimized by using the principle of fluid mechanics and the software of FLUENT, and the mechanism of negative pressure was described. The results show that the smaller distance between valves inlet and contractions outlet of the designed valve, the greater the pressure generated of vacuum suction, but the flow has heavy turbulence in the internal flow field, and the compressed air will flow back into the adsorption chamber. It is recommended that the distance between the inlet and the contractions outlet is suitable to set about 5/8 times of the air chambers axial length. At the same time, the smaller of angle between the contractions outlet and the axis of the valve, but the flow resistance is also increased accordingly, and more difficult to process, so the recommended value of the angle is 30°.
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