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对端面旋流进风结构的新型煤粉燃烧器进行了冷态流场特性和热态中试实验。冷态实验结果表明 :端面旋流进风结构能获得对称、均匀的流场 ,燃烧器的进、出口结构对燃烧器内压力场和流场分布影响很大 ;出口直径的大小决定中心回流区域的大小 ;环形叶片进口位置的变化对燃烧器内流场的影响集中在燃烧器头部。热态实验表明 ,当煤粉粒径小于 0 .2 mm时 ,燃烧器内温度可达 16 0 0℃ ,能实现顺利排渣 ,系统运行可靠
The new pulverized coal burner with swirling air inlet structure was tested in the cold flow field and in the pilot test. The experimental results show that the inlet and outlet structures of the combustor have a great influence on the pressure field and the distribution of the flow field in the combustor. The size of the outlet diameter determines the central recirculation zone The size of the annular blade inlet changes the impact of the flow field within the burner focused on the burner head. Thermal experiments show that when the particle size of coal is less than 0.2 mm, the temperature in the burner can reach 16 0 0 ° C, the slag can be discharged smoothly and the system runs reliably