以往，国内大中型燃煤发电机组烟风系统主要辅机（三大风机、空预器等）均按双系列设置，即均按2×50%容量配置。本文针对项目特点，对风机单列设置的风机选型、可靠性、经济性及系统设置方面进行了研究，拓宽了锅炉烟风系统主要辅机配置方案的设计思路。而工程实践也证明了本文在风机设置方面的探索是正确的。%In the past, the main auxiliary equipment of the flue gas system (three main fans,air heater, etc.) is double set in the domestic fossil fired power plant design, that is installing two(2) 50%capacity equipment. Base on the characteristic of the project, the paper studies the fans selection, reliability, economy and system design of the single set fans, which has widened the view of the main auxiliary equipment set design in flue gas system. The project practice has proved that this exploration of the paper in the fans set is correct.
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