天气预报 > 其他 > 电站烟气流速一般为多少
电站烟气流速一般为多少
更新时间: 2020-10-04 00:00:00  

电站锅炉烟气流速主要取决于受热面的经济性和安全性,烟气流速低了,要布置更多的受热面,且会加重受热面的飞灰污染;烟气流速过高,会对受热面产生飞灰磨损。因此烟气流速根据燃煤特性确定,一般的煤烟气流速取9~10m/s;对于灰分多和灰份磨损强的煤烟气流速取7~8m/s;对于灰分少和灰份磨损弱的煤烟气流速取10~12m/s。

关键词: 电站 烟气 流速 一般 多少

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