The seal air fans deliver a design pressure that is above the operating pressure in the flue work.
密封风机能使空气达到设定的压力，此压力应高于烟气在烟道中的运行压力。
The design technology of rectangular air & flue gas ducts is discussed in this paper. Based on the detailed analysis for the feasibility, a rectangular air & flue gas ducts CAD system is developed.
对火力发电厂矩形烟风管道设计中的难点进行了讨论，分析了矩形管道进行计算机辅助计算的可行性，提出了解决方案，介绍了开发的一套辅助计算系统。
Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space. The air pre-heater is added to enhance the heating efficiency up to 92% or more.
锅炉采用三盘管结构，烟气三回程，设计紧凑，节能空间，增加空气预热器时热效率最高可达92%以上。
Triple coil structure is adopted for the boiler with three-pass smoke and flue, compact design and energy-saving space. The air pre-heater is added to enhance the heating efficiency up to 92% or more.
锅炉采用三盘管结构，烟气三回程，设计紧凑，节能空间，增加空气预热器时热效率最高可达92%以上。
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