基于故障树的干气密封稳定性影响因素分析  

Analysis on Stability Factor of Dry Gas Seal Based on Fault Tree

作　　者：王衍[1] 周先才 王达 周宇杰 曹斌 杨鑫烨 WANG Yan;ZHOU Xian-cai;WANG Da;ZHOU Yu-jie;CAO Bin;YANG Xin-ye(Mechanical Engineering School,Huaihai Institute of Technology, Lianyungang 222005, China;Nanjing Tiany Aeronautical Technology Co . , Ltd. , Nanjing 210012, China)

机构地区：[1]淮海工学院机械工程学院,江苏连云港222005 [2]南京天一航空科技有限公司,江苏南京210012

出　　处：《机械工程与自动化》2017年第6期28-30,共3页Mechanical Engineering & Automation

基　　金：淮海工学院创新基金资助项目(Z2014010);淮海工学院引进人才科研启动基金资助项目(KQ16006);淮海工学院校级大学生实践创新训练计划项目(2014120314);江苏高校品牌专业建设工程项目(PPZY2015C214)

摘　　要：为了更好地了解干气密封稳定运行影响因素,基于故障树分析的方法对干气密封稳定性影响因素进行了系统研究。首先对故障树法进行了介绍,然后针对干气密封系统的特点,选择"密封腔泄漏"作为故障树顶端事件,将"端面泄漏"、"静环泄漏"和"端盖泄漏"作为故障树次顶事件,最后,通过对建立的干气密封故障树进一步定性分析,获得最小割集并对故障因素进行了分析,确定了干气密封产生故障的主要影响因素并确定了相关稳定性参数,以期为合理预测及描述干气密封系统工作状态提供借鉴。In order to better understand the influence factors of dry gas seal for the stable operation,a method based on fault tree analysis to study the influence factors of dry gas seal stability is proposed.Firstly,the method and mechanism are introduced.Secondly,an analysis on the method of mathematical foundation,tree construction method,tree construction step and tree construction rule is conducted.Due to the feature of dry gas seal,the＂seal chamber leakage＂is selected as the top event,＂end face leakage＂,＂static ring leak＂and＂end cap leak＂as the second-level top events.Then,through qualitative analysis of dry gas seal failure tree,the main factors of dry gas seal failure are obtained,which provides a reference for the reasonable prediction and description of the working state of dry gas seal system.

关 键 词：干气密封 故障树 稳定性 定性分析 

分 类 号：TH136[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]