摘要
涡旋压缩机运行过程中轴向间隙导致的气体泄漏以及密封材料与涡旋盘端板之间的摩擦损耗极大地降低了压缩机的工作效率,对其工作性能产生了不利影响。为了减少动、静涡旋盘之间的气体泄漏以及摩擦磨损,提出一种磁悬浮轴向密封机构,通过对其进行受力分析,得到动涡旋盘所受背压腔气体力的压力差,并以受力结果为指导进行不同石墨含量填充的PTFE密封材料的磨损试验,探究轴向密封材料的摩擦学性能。结果表明:该轴向密封装置能够有效降低轴向间隙引起的径向泄漏,使用石墨填充量为25%的PTFE密封材料搭配所设计的新型磁悬浮轴向密封机构能够实现较好的密封和减摩效果。
The gas leakage caused by the axial clearance during the operation of the scroll compressor and the friction loss between the sealing material and the scroll end plate greatly reduce the working efficiency of the compressor and adversely affect its working performance.In order to reduce the gas leakage and friction and wear between the dynamic and static scroll plates,a magnetic levitation axial sealing mechanism was proposed.Through the force analysis,the pressure difference of the gas force in the back pressure chamber of the dynamic scroll plate was obtained.Based on the force results,the wear test of PTFE sealing material filled with different graphite content was carried out,and the tribological properties of the axial sealing material were investigated.The research shows that the axial sealing device can effectively reduce the radial leakage caused by the axial clearance.The new magnetic levitation axial sealing mechanism designed by using PTFE sealing material with 25%graphite filling can achieve better sealing and friction reduction effects.
作者
王楠楠
池宝涛
闫安岗
王吉康
袁维运
张立国
WANG Nannan;CHI Baotao;YAN Angang;WANG Jikang;YUAN Weiyun;ZHANG Liguo(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255049,China;China Nuclear Industry 23 Construction Co.,Ltd.,Beijing 101300,China;Tuha Drilling Company,CNPC Xibu Drilling Engineering Co.,Ltd.,Turpan Xinjiang 838200,China;Rizhao Port Shandong Wharf Co.,Ltd.,Rizhao Shandong 276800,China)
出处
《机床与液压》
北大核心
2024年第13期67-73,共7页
Machine Tool & Hydraulics
基金
山东省自然科技基金项目(ZR2022ME122,ZR2022ME120)
中国博士后科学基金项目(2022M712393,2021M702024)。
关键词
涡旋压缩机
轴向间隙
摩擦磨损
密封机构
scroll compressor
axial clearance
frictional wear
sealing mechanism
