开式直筒辐射管燃气燃烧器的优化设计

Optimization design on uncork-cylinder radiant tube gas-fired combustor

为了准确反映出辐射管尺寸对燃烧器工作效果的影响,在3种不同负荷条件下,对使用不同辐射管时的开式直筒辐射管燃气燃烧器相关的热工参数进行了测定,得到了负荷、辐射管管径、辐射管管长之间相对合适的配比关系,进而对燃烧器的结构进行了优化设计.实验结果表明:在测试负荷范围内,219mm是比较合适的辐射管管径选择,在50,75,100kW三种负荷下,比较合适的管长分别为950,1000,1100mm.

In order to exactly reflect the effect of the radiant tube size on the combustion performance,thermal parameters on uncork-cylinder radiant tube gas-fired combustor were measured using different radiant tubes under three kinds of loads,and the relatively suitable matching relationship among the load,the length and the diameter of radiant tube was obtained,thus the optimization design on the combustor structure was achieved.It is found that 219 mm is the appropriate radiant tube diameter in the test load range,950 mm,1000 mm and 1100 mm are the appropriate radiant tube lengths under loads of 50 kW,75 kW and 100 kW.