Design method of high-uniformity SCR ammonia injection grid
The invention discloses a design method of a high-uniformity SCR ammonia injection grid. The SCR ammonia injection grid comprises a plurality of connecting pipes, a plurality of branch pipe headers and a plurality of ammonia injection branch pipes which are sequentially communicated with a main pipe...
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| creator | HAN BAOGENG SUN BAOREN ZHANG JIANHUA SONG YUBAO LI YANHUAI ZHOU SHENG ZHOU JIAN HE JINLIANG XU JIANFENG LIU XIAOKUI LI XIAOJIAN XIAO LISHENG XIE XINHUA MENG QINGDANG |
| description | The invention discloses a design method of a high-uniformity SCR ammonia injection grid. The SCR ammonia injection grid comprises a plurality of connecting pipes, a plurality of branch pipe headers and a plurality of ammonia injection branch pipes which are sequentially communicated with a main pipe, each ammonia injection branch pipe is provided with a plurality of nozzles, and a reducing agent and dilution air are mixed, enter the main pipe and then are sprayed out through the nozzles. By controlling the outlet gas flow deviation of each connecting pipe connected with the main pipe, the outlet gas flow deviation of each ammonia spraying branch pipe connected with the branch pipe header and the outlet gas flow deviation of each nozzle connected with the ammonia spraying branch pipe, the outlet gas flow distribution of the nozzles is uniform, and the optimization of the key structure parameters of the SCR ammonia spraying grid is realized. According to the design method for the SCR ammonia injection grid key |
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The SCR ammonia injection grid comprises a plurality of connecting pipes, a plurality of branch pipe headers and a plurality of ammonia injection branch pipes which are sequentially communicated with a main pipe, each ammonia injection branch pipe is provided with a plurality of nozzles, and a reducing agent and dilution air are mixed, enter the main pipe and then are sprayed out through the nozzles. By controlling the outlet gas flow deviation of each connecting pipe connected with the main pipe, the outlet gas flow deviation of each ammonia spraying branch pipe connected with the branch pipe header and the outlet gas flow deviation of each nozzle connected with the ammonia spraying branch pipe, the outlet gas flow distribution of the nozzles is uniform, and the optimization of the key structure parameters of the SCR ammonia spraying grid is realized. 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| title | Design method of high-uniformity SCR ammonia injection grid |
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