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发明公开
CN101336130A 用于使流体和大量的气流混合、特别是用于将还原剂引入到含有氧化氮的烟气中的装置 有权

用于使流体和大量的气流混合、特别是用于将还原剂引入到含有氧化氮的烟气中的装置
摘要：
本发明涉及一种用于使流体和在气体管道中流动的大量的气流(2)混合、特别是用于将还原剂(5a)导入到含有氧化氮的烟气中的装置，该装置具有至少一个喷管(5)，该喷管带有至少一个用于导入流体的喷嘴(4a，4b)，它的轴线与气流的流动方向形成一个角度，并且具有至少一个间隔一定距离配设于喷嘴的扁平的混合元件，该混合元件与气流的流动方向形成一个角度，其中在混合元件处形成流动涡流(3)，并且至少一部分流体到达该流动涡流中。当直接喷入一种液体特别是液态的还原剂作为流体时，通过短的混合路径，以便在基本范围内避免了沉淀的形成，依照本发明规定，在使用一种液体作为流体(5a)时，喷管(4)配备有至少两个相对于气流(2)的流动方向倾斜的、并且相互反向地倾斜的喷雾嘴(4a，4b)，该喷雾嘴配备有一个做成盘片式的混合元件(1)。
摘要（英）：

In an apparatus for mixing a fluid with a large gas stream (2) flowing in a gas duct, especially for introducing a reducing agent (5a) into a flue gas comprising nitrogen oxides, having at least one metering lance (5) with at least one nozzle (4a; 4b) for the feeding of the fluid, whose axis forms an angle with the flow direction of the gas stream, and at least one flat mixer element which is arranged at a distance from the nozzle and forms an angle with the flow direction of the gas stream, wherein flow eddies (3) are formed at the mixer element and at least some of the fluid gets into these flow eddies, deposit formation is prevented to a substantial extent in the case of direct injection of a liquid as the fluid, especially of a liquid reducing agent, with a short mixing path, in accordance with the invention by providing that, in the case of use of a liquid (5a) as the fluid,; the metering lance (4) is equipped with at least two atomizer nozzles (4a, 4b) which are tilted against the flow direction of the gas stream (2) and in opposite directions to one another, such that the atomizer nozzles are assigned to a mixer element (1) with a disk-like design.

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