离心式压缩机定期维修周期及可靠性研究  

Research on regular maintenance cycle and reliability for centrifugal compressors

作　　者：裴峻峰[1] 郑庆元[1] 姜海一[2] 于志远[1] 郭泽亮[1] 董雪[1] 

机构地区：[1]常州大学机械工程学院,江苏常州213016 [2]中国特种设备检测研究院,北京100013

出　　处：《中国石油大学学报（自然科学版）》2014年第6期127-133,共7页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金项目(51175051);中国石油化工股份有限公司镇海炼化分公司技术开发项目(K-13-I02)

摘　　要：研究离心式压缩机的寿命分布类型及可靠性规律,通过数据采集、分析等手段确定大修时间所服从的分布类型,从而确定设备的定期维修周期及可靠性规律。结果表明:在收集的该组离心式压缩机大修及维修数据中,三参数威布尔分布要比两参数威布尔分布拟合的效果精确;该组离心式压缩机的平均无故障时间、平均维修时间和可用度分别为27 187 h,489.3 h和98.2%,可靠度95%时的离心式压缩机定期维修周期为9 530 h;该组离心式压缩机发生概率最高的失效模式为在线问题,发生概率最高的失效单元为密封件。In order to research the life distribution type and reliability rules of centrifugal compressor, the method of data col-lection and analysis was used to determine the distribution type of the overhaul time. The preventive maintenance cycle and reliability rules of the equipment were further studied. The results show that the accuracy of Weibull distribution of three pa-rameters is better than Weibull distribution of two parameters according to the operation and maintenance data collected in the centrifugal compressors. The MTBF, MTTR and availability of the centrifugal compressors are 27 187 h, 489. 3 h and 98. 2% , respectively. The regular maintenance cycle of the centrifugal compressors is 9530 h under the reliability of 95% . The failure mechanism with high probability is in-service problems, and the failure units with high probability are seals in the centrifugal compressors.

关 键 词：离心式压缩机 可靠性 寿命分布类型 威布尔 定期维修周期 失效单元 

分 类 号：TH452[机械工程—机械制造及自动化]