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    • 2. 发明公开
    • Power plant burning fuel in a fluidized bed
    • 电厂在流化床中燃烧燃料
    • EP0283967A1
    • 1988-09-28
    • EP88104396.2
    • 1988-03-19
    • ASEA STAL AB
    • Pillai, Krishna K.
    • F23C11/02F22G7/00F01K3/18
    • F23C10/32F22B31/0084F23C10/16
    • Power plant for burning fuel, primarily coal, in a fluidized bed (18), preferably a PFBC power plant. A bed vessel (12) is divided into a combustion chamber (22) and an ash chamber (24) by an air distributor (16) with nozzles (42) for the supply of air for fluidization of the bed (18) and combustion of the fuel. The air distributor (16) is provided with openings (44), through which bed material can pass from the combustion chamber (22) to the ash chamber (24). Tubes (54) for generating steam are also provided in the combustion chamber (22). Tubes (56) for superheating steam are arranged in the ash chamber (24). The plant is provided with a transport system (66) for conveying bed material from the ash chamber (24) to the combustion chamber (22). During transport from the ash chamber (24), the bed material will circulate between combustion chamber (22) and ash chamber (24). Regulating the quantity of bed material circulating also regulates the supply of heat to the superheating tubes (56), and thus superheating of the steam passing through the tubes (56).
    • 用于在流化床(18),优选PFBC发电厂中燃烧燃料(主要是煤)的发电厂。 通过具有喷嘴(42)的空气分配器(16)将床式容器(12)分成燃烧室(22)和灰化室(24),用于供应用于床(18)流化的空气和燃烧 燃料。 空气分配器(16)设置有开口(44),床材料可通过开口(44)从燃烧室(22)通到灰腔(24)。 用于产生蒸汽的管(54)也设置在燃烧室(22)中。 用于过热蒸汽的管(56)布置在灰腔(24)中。 该设备设置有用于将床材料从灰室(24)输送到燃烧室(22)的输送系统(66)。 在从灰室(24)输送过程中,床料将在燃烧室(22)和灰室(24)之间循环。 调节循环床材料的数量还调节对过热管56的热供应,并由此调节通过管56的蒸汽的过热。