【作者】 黄勇理；

【导师】 瞿坦；

【作者基本信息】 华中科技大学 ， 控制理论与控制工程， 2005， 博士

【摘要】 素以设备性著称的我国火电生产企业,目前正处于燃料供应短缺,电力能源需求不断增大的紧迫情势之下。为了保障生产设备安全、稳定、可靠、长期地正常运行,势必加倍重视设备管理,设备维修的重要性变得十分突出。维修不再是一项辅助性的投入,它和设备投资一样早已成为电厂建设和运营的重要组成部分; 维修的效益也不再是微不足道的或者是隐性的,它已明显地反映到生产的安全性和适应性,企业的总体盈利和运行损耗,以及产品质量、市场竞争力、环境保护等诸多因素之中。因此,不断改进企业设备维修管理体系,将科学管理和先进技术有效地结合起来,及时准确地实现设备状态信息的监测和诊断,高效合理地完成维修活动的组织策划和资源调配; 严格监督控制工程质量,提高施工效率,降低维修成本; 科学地预测、评估和优化维修进程、实施效果以及直接和间接的成本效益,是现代设备管理的主要任务,也是我国电力生产企业必须予以重视的具有现实意义的研究课题。信息化是现代企业提高设备管理水平的有效途径。本篇学位论文围绕火力发电厂设备维修管理信息化平台建设和系统实现中的相关设备管理和维修技术等方面的问题进行了学习和研究。文章系统地总结了设备管理及维修领域的发展和现状,学习了维修基础理论和技术管理方法; 综述了典型维修策略及其模型优化的相关问题,探讨了电厂多种维修方式并存下的维修策略模型并对其性能参数进行了仿真研究; 介绍了电站大小修文件包质量管理体系的应用功能和设备状态点检实施的具体方法以及它们的工作流程; 提出了文件包的数字化及大小修过程信息监控的技术思想,创建了严格遵循点检标准的设备点检计划自动生成和调整的程序机制。在网络化信息平台的基础上,设计开发了B/S 模式的文件包数字化管理及大小修过程质量监控,以及标准化点检的计划管理与点检执行的信息支持等电站设备维修管理系统的两大实用功能,巧妙地将企业贯标工作融入信息管理系统的应用之中,为进一步实现基于设备状态的维修决策支持奠定了良好的信息基础。先进的设备管理,很大程度上取决于维修观念的转变和发展。随着维修形式从故障修复性事后维修和依据运行时间的预防性计划维修逐渐向基于设备状态的预防性精确维修转变,维修活动已成为包括电厂在内的连续过程工业必须从企业整体运营目标长期综合考虑和优化的系统工程。电站设备大修和小修是预防性计划维修的重要环节,文件包系统是规范设备大小更多还原

【Abstract】 With the speedy development of economy in China, The energy shortage grows more seriously and the gap of electric power demand increases constantly. The fast rising of coal price causes the production cost to run up; the increasing electric power demand requires equipments to run steadily at full capacity and beyond time limit; fuel suppliers’market compels coal-fired power plant to endure a wide margin fluctuation for the nature of coal, even to use inferior coal, and deteriorating working condition makes a higher request for units-operating control and equipments maintenance. Under such situations, electric power enterprises must pay more attention for the management of production equipments, which makes the importance of equipment maintenance more obvious. Maintenance is not a complementary action, but an important component as the equipment investment when a power plant builds and runs. Furthermore, the benefit of maintenance is not negligible or recessive and has been already reflected by a great deal of factors, such as total profits and losses of enterprise, security and adaptability of production, product quality, market competitiveness, environmental protection, etc. Therefore, it is necessary to establish a set of advanced support system for equipment maintenance, which can realize monitoring, analyzing of equipments condition accurately and reliably; complete programming and organizing on maintenance activities, preparing maintenance resources scientifically and rationally; supervise its engineering quality of project, improve working efficiency, reduce maintenance cost; predict, evaluate and optimize effect, expenses, direct or indirect economic benefits about maintenance effectively. It is not only a primary task in modernization equipment management, but also a realistic research subject which is electric power enterprises needs to solve urgently. Informationization is an effective approach to raise the level of equipment management in modern enterprise. In this dissertation, some problems are studied and researched which are about the equipment management, maintenance strategies and the informationization platform for equipment maintenance management used in thermal power plants. The dissertation summarizes the development and the status quo in the field of equipment management and maintenance systematically, learns the basic theory on maintenance and the management method on technology; generalizes the typical maintenance policies and their model optimization, discusses the maintenance policy models with coexisting kinds of maintenance means, emulates their performance throughout correlative parameters; introduces the application functions of quality management system for major & minor overhauling in power plants, the idiographic methods in the implement of sequential equipment condition inspections, and their operation flows; put forward the technology idea about document package digitization and information monitoring in the process of major & minor maintenance, establishes a procedure mechanism of equipment sequential inspection plans created and adjusted automatically following the sequential inspection standard strictly. Based on the intranet information platform, it develops digitization document package management and major & minor maintenance quality monitoring with B/S mode, and design two practical functions of equipment maintenance management in power plants such as the plan management on standardization inspections and the information support for the implement of sequential inspection. It makes the work of an enterprise carrying out ISO quality standard embedded in the application of an information management system skillfully, and establishes a good information foundation for realizing the maintenance decision-making support on CBM further. Advanced equipment management depends on the transition and development of maintenance concept to a great extent. The maintenance modes have been gradually changed into the accurate preventive maintenance based on equipment conditions from the break-down corrective maintenance and the preventive planned maintenance according to operating time. Maintenance activities have already become a system engineering considered and optimized from the total running goal of enterprise in many continuous process industries including power plant. The minor & major maintenance of power plant equipments plays an important part in preventative planned maintenance. The document package is a kit of standardized job guidance and documental quality management system used to standardize maintenance activity process. The maintenance system based on the sequential inspection which has been applied successfully in many industrial enterprises is a preventive maintenance mode according to equipment condition monitoring. Moreover, a great deal of qualitative or quantitative information on operating states of equipments, recorded by periodic sequential inspections, is not only one of the most important information sources to analyze the equipment condition and diagnose the trouble, but also the information basis for putting forward advanced condition maintenance system further. Fully utilizing the information technology means can bring about the scientific organization and high-efficient management of maintenance activities, keep equipments in good operating state furthest, strengthen and carry out ISO9001: 2000 quality management standard in order to ensure maintenance technics and quality up to demands; and it canimplement complicated theory calculation and analyses to excavate operation potentiality of equipments, pilot maintenance processes, raise efficiency and economy of maintenance. However, equipment management involves a wide range of knowledge, maintenance process is very complicated, and there are many information types and a great deal of data. Such problems cause the informationization of equipment management difficult to put in right place in one step. Besides, a lot of practical problem in application generalizing need to be solved progressively. This dissertation aims to develop and design a set of information system providing practical functions of maintenance management and maintenance decision-making support. It works at researching and discussing the informational management of power plant equipment, refers to the issues of organization behavior, maintenance policy, standardized quality management, specification requirement, cost-benefit, implementing efficiency, monitoring and gathering condition information, decision-making, planning, scheduling, etc. Beginning with several key problems especially, the dissertation chooses tow primary function realizations as the previous work, the document package application system and the information support system of sequential inspections. During the software system development, a friendly maintenance management information platform is successfully built with rational structure, good performance and well expansibility which would set a systematization foundation on development and application of the follow-up function.更多还原