中小热电厂生产中的节能管理

从热电厂现场生产管理出发,分析了开展节能管理的途径及生产实际中应注意的问题,介绍了部分管理经验,可供中小热电厂同行参考。     

火电厂在线能损分析优化系统

阐述了在火电厂引起在线能损分析优化系统的必要性和重要性,介绍了在线能损分析的具体方法以及该系统在能损分析以及优化指导方面的各种功能,它为火力发电企业节约能源,降低成本,提高经济效益提供了有力依据。     

300MW机组的油系统分析

从组成、工作原理、系统监控等方面分析介绍了日立300MW机组的油系统。     

两段燃烧流化床锅炉的设计方法

一种新型两段燃烧流化床锅炉,能实现燃气、蒸汽联产和减少有害气体的大气的排放,特别适合于中小企业和经济发达的乡镇燃气化和集中供热,文中介绍了两段燃烧系统的运行原理和设计要求以及气化段的热力计算方法,建立了预测燃气成份的气化平衡模型。并进行了计算,计算结果与工业测试数据进行了比较,两者符合较好,根据计算结果与工业测试数据进行了比较,两者符合较好。根据计算结果和理论分析。提出了合理组织两段燃烧的有效措施。     

轴向型粗粉分离器改进与完善

介绍了近年来国内电厂轴向型粗粉分离器使用,改进情况和尚存在的问题,以及新型高效轴向粗粉分离器的设计特点及实际使用效果。     

75t／h洗煤泥流化床锅炉设计与点火运行

介绍采用浙江大学开发的异比重流化床技术燃用洗煤泥的75t/h流化床锅炉设计的设计技术特点,点火过程及运行情况。运行表明,该锅炉为我国矿区洗煤泥资料化利用提供了先进的技术手段。     

300MW火电站热力系统性能在线监测与诊断系统

针对大型火电站的复杂热力系统,以电厂现有的数据采集系统（DAS）为基础,利用热力系统汽水分布矩阵方程建立火电站热力系统模型,并通过矩阵比较的办法统一分析加热器侧各项因素对能损的影响,给出诊断结果,最终实现实时监测诊断各热力的运行状态,本系统采用先进的可视化开发平台Borland Delphi 3.0实现,结合现场进行了试验和验证,结果表明该系统具有较高的准确性和可靠性。     

亚临界炉锅水pH降低原因分析及预防对策

通过对某电厂水质事故实例的分析 ,指出锅水pH降低的原因是由于混床树脂泄漏进入主系统造成 ,采用不锈钢梯形绕丝配水装置和负压反冲式树脂捕捉器可以预防这类事故发生。     

Assessment of cracks in power plant components by means of the HIDA knowledge-based system (KBS)

An important integrating task in the framework of the HIDA project was the development and application of the knowledge-based system (KBS). The system enables to assess/predict cracks in high-temperature components of power plants operating under creep and/or fatigue conditions, according to the HIDA procedure developed through the other tasks of the project. The system encompasses a comprehensive material database comprising the proprieties of the materials tested within the HIDA project and which are necessary for the analysis. It also includes a library of different component geometries. The system is built in such a way that the data (e.g. material data, component geometry, etc.) necessary for a high temperature crack assessment can be directly entered by the user or selected from the existing databases within the KBS.The HIDA procedure has been integrated in the KBS in a modular sequence, each module enabling to undertake a step of calculation and/or analysis. This structure allows the user to either run the whole procedure or just perform one single step (e.g. check C^* values). In addition, new or alternative procedures can be used, either for the assessment as a whole, or just for single steps (e.g. C^*, 2-criteria diagram, etc.). The system was developed by MPA Stuttgart, as the HIDA KBS task leader, using ALIAS shell (ALIAS — advanced life assessment system) as a basis, and then tested and applied by industrial partners in the HIDA project.The paper describes the functionality and use of the system through reporting selected application cases (CT probe, pipes, pipe bends), and demonstrates the benefits/advantage of such system within the industry.     

浅谈宁夏湿陷性黄土渠基处理

对自重湿陷性黄土为主的十干渠,从渠基处理及防渗处理两方面综合考虑,选择相对最佳处理措施,并根据以往工程经验,论证该处理措施的可行性及有效性,以防止渠水下渗导致湿陷性黄土渠基出现裂缝、陷坑及渠堤崩塌.