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    Coal-fired power station and method for operating the coal-fired power station
    5.
    发明申请
    Coal-fired power station and method for operating the coal-fired power station 审中-公开
    燃煤电站和燃煤电站运行方式

    公开(公告)号：US20110014578A1

    公开(公告)日：2011-01-20

    申请号：US12864336

    申请日：2009-02-10

    申请人： Andreas Rohde ,  Christian Bergins ,  Friedrich Klauke ,  Martin Ehmann ,  Thorsten Buddenberg ,  Bernd Vollmer ,  Thomas Krause ,  Alfred Gwosdz

    发明人： Andreas Rohde ,  Christian Bergins ,  Friedrich Klauke ,  Martin Ehmann ,  Thorsten Buddenberg ,  Bernd Vollmer ,  Thomas Krause ,  Alfred Gwosdz

    IPC分类号： F23N5/00

    CPC分类号： F23J15/006 ,  F22B1/18 ,  F23C9/003 ,  F23L7/007 ,  F23L2900/07007 ,  Y02E20/328 ,  Y02E20/344

    摘要： In a method for operating and controlling/regulating a power station comprising a coal-fired steam generator (11), the steam generator (11) of which is rated for the steam parameters achievable by the heat transfer onto the steam mass flow upon coal firing in the steam generator (11) carried out using combustion air, a solution is to be created, which enables the operation of coal-fired power stations rated for air operation utilizing a firing of the fuel carried out according to the oxy-fuel process in the firing chamber of the steam generator of the coal-fired power station. This is achieved in that a firing of the fuel containing coal is carried out in the steam generator (11) according to the oxy-fuel process utilizing approximately pure oxygen containing more than 95% by volume, and recirculated flue gas containing a high amount of CO2, such that the mass flows of all fuel flows supplied to the coal-fired burners (10) and to the steam generator (11), and the combustion gas, carrier gas, and process gas flows from the combustion oxygen and/or recirculated flue gas are configured and adjusted to each other with respect to the respective composition ratio thereof of oxygen and/or flue gas such that the heat transfer occurring in the steam generator by means of flame radiation, gas radiation, and convection onto the steam mass flow is maintained equal overall in the steam/water cycle as compared to air combustion, in particular, that the same steam parameters are obtained.

    摘要翻译： 在一种用于操作和控制/调节包括燃煤蒸汽发生器（11）的发电站的方法中，其蒸汽发生器（11）的额定值是通过在煤燃烧时向蒸汽质量流量传热而实现的蒸汽参数 在使用燃烧空气进行的蒸汽发生器（11）中，将产生一种解决方案，这使得能够利用根据氧燃料过程进行的燃料的燃烧来对额定空气运行的燃煤发电站进行操作 燃煤电站蒸汽发生器的燃烧室。 这是通过使用大于95体积％的大约纯氧的氧 - 燃料工艺在蒸汽发生器（11）中进行含燃料燃料的燃烧，并且含有大量 CO 2，使得供应到燃煤燃烧器（10）和蒸汽发生器（11）的所有燃料流的质量流量，并且燃烧气体，载气和处理气体从燃烧氧气和/或再循环 烟道气相对于氧气和/或烟气的相应组成比相互配置和调节，使得通过火焰辐射，气体辐射和蒸汽质量流中的对流在蒸汽发生器中发生的热传递 与空气燃烧相比，在蒸汽/水循环中总体维持相等，特别是获得相同的蒸汽参数。