铝电解槽用矩形燃烧器燃烧过程的数值模拟

燃料加热启动法是铝电解槽加热启动的一种新方法，用燃料燃烧产生的高温烟气来加热启动铝电解槽，即烟气加热技术，可克服燃料加热法的不足，是较理想的铝电解槽加热方法，研究结构合理的燃烧器是保证烟气加热效果的关键.采用数值模拟的方法对烟气加热用燃烧器内的燃烧过程进行了研究，预测了燃烧器的燃烧性能及其影响因素.研究认为燃烧器设置预燃室有利于提高燃烧器的完全燃烧度，紧靠燃烧室壁面的三次风有利于降低燃烧室内壁温度，研究结果为燃烧器结构的优化设计提供了理论依据.

Numerical simulation of combustion of rectangle burner used in baked aluminum reduction cell

Fuel thermal bake out is a new method to heat and start up the aluminum reduction cell. And the fume thermal technology, i.e. using high-temperature fume to heat and start up the aluminum reduction cell, is an ideal method to heat the aluminum reduction cell, which can overcome the shortage of fuel thermal bake-out. The study on the rational burner structure is the key to obtaining perfect thermal result. A study on combustion in the burner for fume thermal bake-out was made by numerical simulation. Combustion performance and influencing factors of the burner were predicted. The study showed that installing a precombustion chamber could help improve complete combustion of the burner.The terfiary air near the chamber wall could lower the temperature of the chamber inner wall. The study results provided the theoretical basis for optimum design of burner structure.