电站锅炉广泛采用的空气预热器有管式和回转式两种。管式空气预热器的传热方式是:热量连续地通过管壁从烟气传给空气,属间接传热方式。回转式空气预热器以再生方式传递热量,烟气与空气交替流过受热面。当烟气流过时,热量从烟气传给受热面,受热面温度升高,并积蓄热量;当空气再流过时,受热面将积蓄的热量放给空气。
... 管式空气预热器 tubular air preheater 回转式空气预热器 air preheater of revolution 间壁式空气预热器 recuperative airheater ...
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风罩回转式空气预热器 stationary plate type regenerative air preheater
再生式回转空气预热器 rotary regenerative air heater
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回转式空气预热器的热力特性,主要取决于所用波纹钣型的热力特性。
The thermodynamic performance of a rotary regenerative air preheater depends greatly on the flow pattern of heating surface plates.
根据回转式空气预热器的传热机理进行了理论分析,建立了相应的数学模型。
Theoretical analysis is done based on the heat transfer mechanism of rotary air preheater, and mathematical model is established correspondingly.
采用回转式空气预热器的热回收系统,可以使加热炉热效率保持在86%以上。
Heat recovery system with revolving air preheater can keep the heat efficiency above 86%.
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