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布置在煤粉炉炉膛器角或其附近的直流煤粉燃烧器,气流射向炉膛中的假想切圆,在炉膛中合起来形成火焰圈,向上汇集成略有旋转的上升火焰。例如典型的水平浓淡燃烧器、开缝钝体燃烧器、稳燃腔燃烧器、带大速差射流的双一次风道燃烧器、富集型燃烧器、多功能船形燃烧器、双稳可调浓淡燃烧器已在我国火力发电厂中广泛应用,而且各电厂在实践中进行了技术改进,使这些典型的直流式燃烧器更趋完善。
A DC pulverized coal burner, located at or near the pulverizer’s horn, directs the imaginary tangent of the air stream toward the hearth, which together form a flame ring in the hearth and converges upward into a slightly rotating ascending flame. Such as typical horizontal shades burners, slotted bluff body burners, stable burner burners, dual primary duct burners with large velocity jets, enriched burners, multi-functional boat burners, bistable tunable Concentrated burner has been widely used in China’s thermal power plants, and the power plant in the process of technological improvements, so that these typical DC burners more perfect.