低温透平膨胀机用全动压气体轴承的设计与试验研究  

Design and experimental study of self-acting gas bearings for cryogenic turboexpanders

作　　者：侯予[1] 熊联友[1] 王瑾[1] 陈纯正[1] 汤润泉 刘国钧 吴其蒙 张凤华 徐友亮 

机构地区：[1]西安交通大学低温工程研究所,西安咸宁西路28号710049 [2]苏州制氧机有限责任公司,江苏苏州木渎215101

出　　处：《深冷技术》2002年第1期6-9,共4页

基　　金：国家自然科学基金资助项目 (5 9875 0 70 )

摘　　要：介绍 15 0m3 /h制氧机用中压低温透平膨胀机 (PLK - 8 33× 2 / 2 0 - 5 )在转子转速12 16× 10 4r/min (比额定超速 14 % )工况下 ,获得了全动压气体轴承稳定运转的良好效果。还对螺旋槽止推轴承的性能进行了研究。试验结果表明 ,在国产高速低温透平膨胀机中改用全动压气体轴承是完全可行的。The new aerodynamic foil journal bearings with elastic support and spiral grooved thrust bearings have been applied to a turboexpander associated with 150m 3/h oxygen plant.They can support the rotor revolving at 12 16×10 4rpm which overspeeds by 14%.By using these gas bearings,smooth operation is obtained.In addition,the performance of spiral grooved thrust bearings has been studied.The experimental results have proved that the application of this kind of self acting gas bearings to the cryogenic turboexpanders is feasible.

关 键 词：低温透平膨胀机 系统设计 试验研究 全动压气体轴承 

分 类 号：TB653[一般工业技术—制冷工程]