火电厂烟气排放连续监测系统配置及选型中注意的问题

通过对火电厂烟气排放连续监测系统的组成、不同的配置方案进行分析说明,指出目前烟气在线监测系统在选型过程中应注意的问题,为烟气连续监测系统在火电厂的推广和应用提供参考。     

加热式直接抽取法CEMS在焦作电厂的应用

以烟气连续排放监测系统在焦作电厂燃煤发电机组上的应用为例,介绍了一种加热式直接抽取法烟气连续监测系统的原理,分析了系统组成及功能、系统运行及系统的维护检修.     

火电厂烟气排放连续监测系统的设计

烟气排放连续监测系统 (CEMS)是监测烟气污染物排放的现代化手段。介绍了CEMS结构组成。在此基础上设计实现的CEMS软件具有扩展性强 ,维护和升级方便的特点。系统中融入了Web技术 ,使得用户在Internet上就可对电厂烟气排放情况进行实时在线监测。此系统具有良好的应用前景。     

火电厂烟气排放连续监测系统的设计

烟气排放连续监测系统（CEMS）是监测烟气污染物排放的现代化手段,介绍了CEMS结构组成,在此基础上设计实现的CEMS软件具有扩展性强,维护和升级方便的特点,系统中融入了Web技术,使得用户在Internet上就可对电厂烟气排放情况进行实时在线监测,此系统具有良好的应用前景。     

火电厂烟气排放连续监测系统设计

介绍了燃煤电厂烟气成份在线连续监测系统中分析仪的选型和装置系统的设计 ,解决了燃煤电厂烟气成份在线连续监测中普遍存在的分析精度低、分析速度慢、取样装置易堵 ,设备使用寿命短等问题 ,实现了系统的长期、畅通、可靠、准确运行。     

鄂州发电有限责任公司烟气排放连续监测系统

介绍了鄂州发电有限责任公司烟气排放连续监测系统，包括系统组成、样品处理、系统校验、分析仪简介等。     

烟气在线监测系统应用及异常分析

烟气在线监测(CEMS)系统由在线环境监测仪器和计算机数据采集处理软件两大部分组成,实现对锅炉烟气里的烟尘、SO2等污染物的分析和连续监测,以及对环境污染物数据的报表处理和数据传输。以某热电有限公司的烟气在线监测系统为例,介绍了烟气在线监测系统,分析了日常运行中出现的几次异常情况。     

基于多数据源的火电厂烟气在线远程监控系统设计

开发了同时采集火电厂烟气污染物排放连续监测系统(CEMS)、脱硫DCS/PLC、火电厂厂级监控信息系统(SIS)/管理信息系统(MIS)等多个系统烟气数据源的火电厂烟气在线远程监控系统。多数据源火电厂烟气在线远程监控系统可同时对机组脱硫系统设备状态和烟气参数远程监控,提高了烟气数据监控的真实性和可靠性,为烟气污染物排放管理和环保监察提供了更加高效、可靠的监控平台。     

我国火电厂烟气排放连续监测系统装设及应用的若干问题

从法规、行政管理、环保规划、技术政策、电力体制改革等方面论述我国火电厂烟气排放连续监测系统（CEMS）装设的必要性，分析我国火电厂CEMS装设及运行的基本状况，指出6方面存在的问题，总结《火电厂烟气排放连续监测技术规范》编制的4条指导思想，提出安装及应用CEMS应用“遵守《规范》、因地制宜、质量保证、严格招标、强化服务、加强培训、定期维护、严格管理”的8条一般原则和需要注意的3个问题。     

火电厂烟气排放连续监测系统设计

介绍了燃煤电厂烟气成份在线连续监测系统中分析仪的选型和装置系统的设计，解决了燃煤电厂烟气成份在线连续监测中普遍存在的分析精度低、分析速度慢、取样装置易堵，设备使用寿命短等问题，实现了系统的长期、畅通、可靠、准确运行。     

Recommendations on the choice of gas analysis equipment for systems of continuous monitoring and accounting of emissions from thermal power plants

According to Federal Law no. 219-FZ, dated July 21, 2014, all enterprises that have a significant negative impact on the environment shall continuously monitor and account emissions of harmful substances into the atmospheric air. The choice of measuring equipment that is included in continuous emission monitoring and accounting systems (CEM&ASs) is a complex technical problem; in particular, its solution requires a comparative analysis of gas analysis systems; each of these systems has its advantages and disadvantages. In addition, the choice of gas analysis systems for CEM&ASs should be maximally objective and not depend on preferences of separate experts and specialists. The technique of choosing gas analysis equipment that was developed in previous years at Moscow Power Engineering Institute (MPEI) has been analyzed and the applicability of the mathematical tool of a multiple criteria analysis to choose measuring equipment for the continuous emission monitoring and accounting system have been estimated. New approaches to the optimal choice of gas analysis equipment for systems of the continuous monitoring and accounting of harmful emissions from thermal power plants have been proposed, new criteria of evaluation of gas analysis systems have been introduced, and weight coefficients have been determined for these criteria. The results of this study served as a basis for the Preliminary National Standard of the Russian Federation “Best Available Technologies. Automated Systems of Continuous Monitoring and Accounting of Emissions of Harmful (Polluting) Substances from Thermal Power Plants into the Atmospheric Air. Basic Requirements,” which was developed by the Moscow Power Engineering Institute, National Research University, in cooperation with the Council of Power Producers and Strategic Electric Power Investors Association and the All-Russia Research Institute for Materials and Technology Standardization.     

Comparative study of gas-analyzing systems designed for continuous monitoring of TPP emissions

Determining the composition of combustion products is important in terms of both control of emissions into the atmosphere from thermal power plants and optimization of fuel combustion processes in electric power plants. For this purpose, the concentration of oxygen, carbon monoxide, nitrogen, and sulfur oxides in flue gases is monitored; in case of solid fuel combustion, fly ash concentration is monitored as well. According to the new nature conservation law in Russia, all large TPPs shall be equipped with continuous emission monitoring and measurement systems (CEMMS) into the atmosphere. In order to ensure the continuous monitoring of pollutant emissions, direct round-the-clock measurements are conducted with the use of either domestically produced or imported gas analyzers and analysis systems, the operation of which is based on various physicochemical methods and which can be generally used when introducing CEMMS. Depending on the type and purposes of measurement, various kinds of instruments having different features may be used. This article represents a comparative study of gas-analysis systems for measuring the content of polluting substances in exhaust gases based on various physical and physicochemical analysis methods. It lists basic characteristics of the methods commonly applied in the area of gas analysis. It is proven that, considering the necessity of the long-term, continuous operation of gas analyzers for monitoring and measurement of pollutant emissions into the atmosphere, as well as the requirements for reliability and independence from aggressive components and temperature of the gas flow, it is preferable to use optical gas analyzers for the aforementioned purposes. In order to reduce the costs of equipment comprising a CEMMS at a TPP and optimize the combustion processes, electrochemical and thermomagnetic gas analyzers may also be used.     

烟气排放连续监测系统及其常见故障分析处理

简述了烟气排放连续监测系统的系统构架和测量原理,分析了各种常见故障的产生原因,并提出了相应的处理方法,对保证系统的正常稳定运行,降低系统维护成本,准确反映污染物排放水平,为环保部门提供详实的污染物排放数据有着极其重要的意义.     

烟气排放连续监测系统数据异常的分析及处理

以北仑发电厂6号机组的烟气连续监测系统数据异常为例,分析了SO：数据异常的特征,提出了故障分析与诊断方法,得出了SO2数据异常的最终原因是红外气体分析仪内部软件C0过补偿所致的结论,成功解决了困扰一年多的测量难题。     

紫外差分法烟气排放连续监测系统在发电厂的应用

神华准能发电厂采用湿式石灰法脱硫工艺,进行脱硫除尘改造后,为能准确检测锅炉排放烟气中的污染物,通过分析比较,选择YDZX-01型紫外差分吸收光谱直接测量法CEMS对烟气进行监测.使用过程中,在锅炉烟气带水、含尘较大、温度偏低等恶劣工况下,出现探头外表及角反射镜结露、粘灰等问题,针对存在的问题进行了有针对性的技术改进,如加装吹扫空气电加热器和空气滤清器等,进一步提高了紫外差分吸收光谱直接测量法CEMS在湿法脱硫系统中应用的可靠性,对其他类型CEMS的运行管理具有一定的借鉴意义.     

SCADA系统在烟气排放连续监测系统中的应用

介绍了基于PLC与组态软件的数据采集与监控(SCADA)系统在烟气排放连续监测系统(CEMS)中的应用,阐述了系统的组成与结构,并给出了系统的设计方法与注意事项。     

烟气连续排放自动监控系统的应用

结合华聚能源济东分公司烟气排放连续监测系统(CEMS)的应用实例,介绍CEMS的结构组成和使用情况。与参比方法对比,CEMS对烟气中颗粒物、SO2、NOx的测定结果准确度符合国家相关标准。     

欧盟火电厂二氧化碳排放在线监测系统质量保证体系对中国的启示

从法规标准、数据质量要求、质量保证等方面总结梳理欧盟对火电厂在线监测二氧化碳的质量控制要求,对比分析中国现阶段在二氧化碳监测方法及法规标准方面的情况,对中国火电厂下一阶段利用连续排放监测系统（CEMS）开展二氧化碳实测法及建立完整的标准与监管体系提出了建议。     

电力系统碳排放流的计算方法初探

电力系统碳排放流分析的理念为低碳电力带来了新的研究方向。根据潮流计算的结果准确而系统地求解电力系统中碳排放流的分布成为亟待解决的问题。在电力系统碳排放流分析理论的基础上,进一步分析了碳排放流和电力系统潮流计算之间的异同,以及电力系统碳排放流的影响因素、计算体系和计算思路;根据碳排放流求解的需要,定义了一些关键矩阵和向量;结合电力系统潮流计算方法与高等电力网络分析方法,在忽略网损的情况下,建立了电力系统碳排放流的基本计算方法,并通过算例系统验证了该方法的正确性。     

测量数据检验和重构在火电机组性能监测系统中的应用

提出了对火电机组性能实时监测系统中原始测量数据进行三重校验，以及基于热力设备模型的不良数据重构原则和对准稳态数据的处理方法，使计算精度和系统可靠性得到很大提高，增加了不良数据的可检验性。经在600MW机组性能实时监测系统上应用，取得了良好的效果。