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首页> 外文期刊>Journal of Engineering for Gas Turbines and Power >Ultralow-Emission Combustion and Control System Installation Into Mature Power Plant Gas Turbines
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Ultralow-Emission Combustion and Control System Installation Into Mature Power Plant Gas Turbines

机译：成熟电厂燃气轮机的超低排放燃烧和控制系统安装

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摘要

The search for power plant sustainability options continues as regulating agencies exert more stringent industrial gas turbine emission requirements on operators. Purchasing power for resale, decomissioning current capabilities altogether, and repowering by replacing or converting existing equipment to comply with emission standards are economic-driven options contemplated by many mature gas turbine operators. One Las Vegas, NV operator, NV Energy, with four natural gas-fired W501B6 combined cycle units at their Edward W. Clark Generating Station, was in this situation in 2006. The units, originally configured with diffusion flame combustion systems, were permitted at 103 ppm NO_X with regulatory mandates to significantly reduce NO_X emissions to below 5 ppm by the end of 2009. Studies were conducted by the operator to evaluate the economic viability of using a selective catalytic reduction system, which would have forced significant modifications to the exhaust system and heat recovery steam generator, or convert the turbines to operate with dry low-emission combustion systems. Based on life cycle cost and installation complexity, the ultralow-emission combustion system was selected. This technical paper focuses on a short summary of the end user considerations in downselecting options, the ultralow emissions technology, and key features employed to achieve these low emissions, an overview of the conversion scope and a review and description of the control technology employed. Finally, a technical discussion of the low-emission operational flexibility will be provided including performance results of the converted units.
机译：随着监管机构对运营商施加更严格的工业燃气轮机排放要求，对电厂可持续性选择的搜索仍在继续。购买转售功率，完全退役当前功能以及通过更换或转换现有设备以符合排放标准的方式重新供电是许多成熟的燃气轮机运营商所考虑的经济驱动选择。内华达州拉斯维加斯的一家运营商NV Energy在2006年处于这种情况，当时在其Edward W. Clark发电站拥有四台天然气W501B6联合循环装置。该装置最初配置有扩散火焰燃烧系统， 103 ppm NO_X，法规要求到2009年底将NO_X排放量大幅减少至5 ppm以下。经营者进行了研究，以评估使用选择性催化还原系统的经济可行性，这将迫使对排气系统进行重大修改以及热回收蒸汽发生器，或将涡轮机转换为使用干式低排放燃烧系统运行。基于生命周期成本和安装复杂性，选择了超低排放燃烧系统。本技术论文着重介绍了最终用户在选择选项时的注意事项，超低排放技术以及实现这些低排放所采用的关键功能，转换范围的概述以及对所用控制技术的回顾和描述的简短摘要。最后，将提供有关低排放运行灵活性的技术讨论，包括转换后的机组的性能结果。

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