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| 石油化工泵用机械密封的可靠性参数估计 | |
| 引用本文： | 魏龙,顾伯勤,孙见君,冯秀.石油化工泵用机械密封的可靠性参数估计[J].流体机械,2008,36(2):27-30. |
| 作者姓名： | 魏龙 顾伯勤 孙见君 冯秀 |
| 作者单位： | 1. 南京工业大学,江苏南京,210009;南京化工职业技术学院,江苏南京,210048 2. 南京工业大学,江苏南京,210009 3. 南京化工职业技术学院,江苏南京,210048 |
| 基金项目： | 江苏省高校高新技术产业发展项目，江苏省南京市科技计划，江苏省六大人才高峰基金 |
| 摘 要： | 石油化工泵用机械密封的失效分为早期失效、偶然失效和耗损失效三种,其失效模式符合威布尔分布.给出了机械密封失效模式的威布尔表达式,介绍了采用矩估计法、极大似然估计法和线性回归分析法对机械密封可靠性数据进行参数估计的实用方法,提出了机械密封可靠度及寿命的计算方法. |
| 关 键 词： | 石油化工 泵 机械密封 威布尔分布 可靠性 |
| 文章编号： | 1005-0329（2008）02-0027-04 |
| 收稿时间： | 2007-06-15 |
| 修稿时间： | 2007年6月15日 |
Parameter Estimation of Reliability of Mechanical Seals for Petrochemical Pump |
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| WEI Long,GU Bo-qin,SUN Jian-jun,FENG Xiu.Parameter Estimation of Reliability of Mechanical Seals for Petrochemical Pump[J].Fluid Machinery,2008,36(2):27-30. | |
| Authors: | WEI Long GU Bo-qin SUN Jian-jun FENG Xiu |
| Abstract: | The three kinds of failures of mechanical seals for petrochemical pumps were discussed, which are initial failure, random failure and lose failure. The failure mode can be described by Weibull distributed function. Some parameter estimation methods of reliability of mechanical seals were presented. These methods mainly include method of moment, maximum likelihood method and linear regression analysis. Furthermore, the methods for calculating the reliability and predicting the service life of mechanical seals were also proposed. |
| Keywords: | petrochemical industry pump mechanical seal weibull distribution reliability |
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