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1. 发明授权

US06189812B1 Welded or nested sheet metal nozzle for injection pulverized coal for thermal power plant boilers 失效
标题翻译：用于火力发电厂锅炉的喷射粉煤的焊接或嵌套钣金喷嘴
公开(公告)号：US06189812B1
公开(公告)日：2001-02-20
申请号：US09496612
申请日：2000-02-02
申请人： Daniel Buridant
发明人： Daniel Buridant
IPC分类号： F23D1110
CPC分类号： F23D1/00 , F23D2201/101 , F23D2211/00
摘要： A nozzle for injecting pulverized coal into the combustion chamber of a thermal power plant boiler includes a first metal housing and a second metal housing surrounding the first housing and defining with it an annular space through which passes a secondary airflow. The first housing channels a primary airflow mixed with pulverized coal. The interior of the first housing is divided by refractory steel splitter plates fixed into the lateral faces thereof by nesting them therein and immobilizing them by way of keys. The second housing is fixed to the first housing by lugs disposed around the top and bottom faces of the first housing. Each housing is made up of two half-shells made from refractory steel plate bent to shape and welded.
摘要翻译：用于将粉煤喷射到火力发电厂锅炉的燃烧室中的喷嘴包括第一金属壳体和第二金属壳体，该第一金属壳体和第二金属壳体围绕第一壳体并且与其一起限定通过二次气流的环形空间。第一个房屋通过与粉煤混合的主要气流。第一壳体的内部由固定在其侧面中的耐火钢分离板分隔，通过将其嵌套在其中并通过键固定。第二壳体通过设置在第一壳体的顶面和底面周围的凸耳固定到第一壳体。每个外壳由两个由耐火钢板制成的半壳制成，弯曲成形和焊接。

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