Continuous steam generator
    2.
    发明授权
    Continuous steam generator 有权
    连续蒸汽发生器

    公开(公告)号:US09267678B2

    公开(公告)日:2016-02-23

    申请号:US13062700

    申请日:2009-09-09

    摘要: A continuous steam generator including a combustion chamber with a plurality of burners for fossil fuel is provided. A vertical gas duct is connected downstream of the combustion chamber on the hot gas side, in an upper region via a horizontal gas duct. The outside wall of the combustion chamber is formed from evaporation pipes which are welded together in a gas-tight manner and mounted upstream of a water separator system on the flow medium side and from superheater pipes which are welded together in a gas-tight manner and mounted downstream of the water separator system. The water separator system includes a plurality of water separation elements, each element includes an inlet tube which is connected to the respective upstream evaporation for tubes, which extend into a water evacuation tube. A distributer element is arranged on the evaporator side between the respective water separator element and the inlet collector.

    摘要翻译: 提供了包括具有用于化石燃料的多个燃烧器的燃烧室的连续蒸汽发生器。 垂直气体管道通过水平气体管道连接在热气体侧的燃烧室的下游,在上部区域。 燃烧室的外壁由蒸气管形成,其以气密方式焊接在一起,并且安装在流动介质侧上的水分离器系统的上游和以气密方式焊接在一起的过热管, 安装在水分离器系统的下游。 水分离器系统包括多个水分离元件,每个元件包括入口管,其连接到延伸到排水管中的用于管的相应的上游蒸发器。 在各自的水分离器元件和入口收集器之间的蒸发器侧布置有分配器元件。

    Method of reducing flue gas emissions and a boiler
    9.
    发明授权
    Method of reducing flue gas emissions and a boiler 有权
    减少烟气排放的方法和锅炉

    公开(公告)号:US09310075B2

    公开(公告)日:2016-04-12

    申请号:US13264516

    申请日:2010-04-14

    摘要: The present invention relates to a method and a boiler for decreasing the amount of nitrogen oxides in flue gases of a boiler, which flue gases are generated in the combustion of fuels and air. The boiler has a water circulation system comprising superheaters (8) and a furnace (1) for combustion of fuel and for generating flue gases that contain nitrogen oxides, which flue gases mainly flow upwards in the furnace and further to the superheater zone and via other heat recovery surfaces of the boiler out of the boiler, and a nitrogen oxides reducing agent is introduced into the flue gases. It is essential that the nitrogen oxides reducing agent is introduced into the flue gases prior to the superheater zone, before which the temperature of the flue gases is decreased by means of at least one heat exchanger (15) that is located in the flue gas flow upstream of the introduction of the reducing agent, for obtaining a suitable temperature window in the flue gas flow in order to reduce nitrogen oxides.

    摘要翻译: 本发明涉及一种用于减少锅炉烟道气中的氮氧化物的量的方法和锅炉,该燃料和空气的燃烧产生烟道气。 锅炉具有水循环系统,其包括过热器(8)和用于燃烧燃料并用于产生含有氮氧化物的烟道气(1)的炉(1),该烟道气主要在炉中向上流动,并进一步向过热区域通过其他 将锅炉的热回收表面排出锅炉,并将氮氧化物还原剂引入烟道气中。 重要的是,在过热器区之前将氮氧化物还原剂引入烟道气中,在此之前,烟道气的温度通过位于烟气流中的至少一个热交换器(15)而降低 在引入还原剂的上游,用于在烟道气流中获得合适的温度窗口以减少氮氧化物。