化工企业特殊管理阀门级别判定标准与控制方法研究

发布时间：2018-05-18 09:47

本文选题：阀门 + 误操作指标　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：阀门是化工企业正常生产运行的重要组成部分,也是很多化工设备安全运行的保证。本文以化工企业处于常开或者常关状态的阀门为研究对象,主要研究了这类特殊管理手阀的辨识方法、针对此类手阀误操作产生的风险等级和制定不同风险等级的管理制度。取得的研究成果对化工企业阀门风险管理工作有重要的理论意义和应用价值。在化工企业安全运行中,识别出此类手阀是风险管理的首要问题。本文首先从此类手阀造成的事故出发,总结事故经验,认为事故原因分为阀门设计、管理漏洞、操作人员违章三个方面,进一步通过三家化工企业的现场调研,了解目前阀门的管理情况。最后结合HAZOP分析方法建立了阀门辨识的程序。本文针对传统风险矩阵方法的缺点,采用层次分析和风险矩阵相结合的方法进行风险估计。运用层次分析法建立阀门误操作风险指标体系,根据层次分析法计算出指标的综合权重,并结合专家打分法确定误操作阀门概率等级。并根据误操作阀门对系统安全运行造成的影响确定严重度等级,运用风险矩阵结合概率等级和严重度等级构建阀门误操作的风险矩阵,根据风险矩阵确定特殊管理阀门的管理等级,最后用案例验证了该方法的可行性。本文根据特殊管理阀门的特点结合风险矩阵的风险等级的判定制定了化工企业特殊管理阀门分级管理规定,制定本规定的目的就是规范特殊管理阀门的管理与维护,帮助操作人员通过安全标识、铅封和上锁等措施来防止阀门误操作带来的危害,提高员工安全意识。
[Abstract]:Valve is an important part of the normal production and operation of chemical enterprises, and it is also the guarantee of the safe operation of many chemical equipment. In this paper, the identification method of this kind of special management hand valve is mainly studied, aiming at the risk grade caused by the misoperation of this kind of hand valve and the management system of different risk grade, taking the valve in the state of normal opening or opening in the chemical enterprise as the object of study, this paper mainly studies the identification method of this kind of special management hand valve. The research results have important theoretical significance and application value for valve risk management in chemical enterprises. In the safe operation of chemical enterprises, it is the primary problem of risk management to identify this kind of hand valves. This article starts from the accident caused by this kind of hand valve, summarizes the experience of the accident, thinks that the cause of the accident is divided into three aspects: valve design, management loophole, operator violation, and further through the field investigation of three chemical enterprises. Understand the current valve management situation. Finally, the program of valve identification is established with HAZOP analysis method. Aiming at the shortcomings of the traditional risk matrix method, this paper uses the method of combining AHP and risk matrix to estimate the risk. The risk index system of valve misoperation is established by using AHP, the comprehensive weight of index is calculated according to AHP, and the probability grade of valve misoperation is determined by combining expert scoring method. According to the influence of misoperation valve on the system safety operation, the severity grade is determined, and the risk matrix of valve misoperation is constructed by combining the risk matrix with probability grade and severity grade. According to the risk matrix, the management grade of the special management valve is determined, and the feasibility of the method is verified by a case study. According to the characteristics of special management valve and the risk grade judgment of risk matrix, this paper formulates the special management valve grading management regulation of chemical enterprise. The purpose of this regulation is to standardize the management and maintenance of special management valve. Help operators to prevent the harm caused by valve misoperation through safety identification, lead seal and lock, and improve the safety awareness of employees.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ055.81;TQ086

【参考文献】