浓侧反切角对锅炉热态切圆直径的影响原理研究

Effect of thick side reverse tangent angle on thermal state tangent circle principle study

为解决因水平浓淡燃烧器浓侧反切角设计不合理导致的热态切圆直径大、锅炉结焦和燃烧稳定性降低等问题,采用数学理论计算和现场试验相结合的方式进行研究,基本掌握水平浓淡燃烧器浓侧反切角对锅炉热态切圆直径的影响原理和规律,即采用一次风浓侧反切技术后,热态切圆直径将比理论计算直径要小,且浓侧反切角角度越大、热态切圆直径将比理论计算直径减小更多。本项研究不仅为优化改进锅炉低氮燃烧系统和燃烧优化调整积累了经验,而且成功对锅炉进行了优化改造。

Methods to solve the problem for horizontal shading burner thick side improper reverse angle design to hot stage tangential diameter,boiler coking and unstable combustion problem,the mathematical way of combining theoretical calculation and field test are studied,the basic methods of master level shade burner thick side angle of boiler hot state principle and regularity of the influence of tangential diameter,namely using a strong side wind methods of technology,hot tangential diameterwill be smaller than the diameter of a theoretical calculation,and the strong side methods of angle,the greater the thermal state tangential diameter will be more than the theoretical calculation of diameter decreases. This study not only for low nitrogen combustion system but also improve the boiler combustion adjustment and accumulated experience,and successfully for boiler is optimized.