干气密封螺旋槽的激光加工和动压效应分析  

Laser Processing and Dynamic Pressure Effects Analysis of Spiral Groove with Dry Gas Seal

作　　者：杜鹏[1] 韩明君[1] 丁雪兴[1,2] 张伟政[1,2] 

机构地区：[1]兰州理工大学 [2]兰州理工大学温州泵阀研究院

出　　处：《化工机械》2012年第2期150-153,共4页Chemical Engineering & Machinery

基　　金：浙江省科技计划项目(2008C21131);温州市对外科技合作交流项目(H20080018)

摘　　要：采用激光加工法对螺旋槽干气密封端面动压槽进行加工,并进行端面压强的测试。在静环端面相隔120°且不同的径向位置安装3个传感器,测定端面螺旋槽沿着径向产生的压强。通过改变螺旋角、槽深和螺旋槽槽数来试验研究端面产生的动压效果。试验表明,采用激光加工方法能够得到很好的加工精度,达到样机试验的要求;在确定的工况下,当螺旋角在16°时产生的压强最大,压强随着槽深和槽数的增加而增大,最大压强在槽根部。The dynamic pressure groove of spiral groove dry gas seal face was processed with laser processing method and the end face pressure was tested.Three sensors on the end face of static ring at a distance of 120° and along different radial positions can measure spiral groove end face pressure produced along radial position.By changing spiral angle,spiral groove depth and number,the end face dynamic pressure effect was researched.Experimental results show that good processing precision can be obtained through laser processing method,and the prototype test requirements can be achieved;in certain conditions,the pressure can become biggest when spiral angle is 16°,and the pressure rises with the increase of groove depth and groove number,and the maximum pressure can be found at the groove root.

关 键 词：干气密封 螺旋槽 激光加工 动压效果 

分 类 号：TQ051.1[化学工程]