平板火焰直喷燃烧器引射系统的多目标参数优化研究  

Research on the Parameterization of Flat Burner Ejector System

作　　者：刘喜岳 徐青 LIU Xi-yue;XU Qing(Hisense Home Appliance Co.,ltd.,Foshan Guangdong 528303,China;Guangdong Ocean University,School of Mechanical and Power Engineering,Shantou Guangdong 524088,China)

机构地区：[1]海信家电集团,广东佛山528303 [2]广州海洋大学机械与动力工程学院,广东湛江524088

出　　处：《广州航海学院学报》2022年第1期70-74,共5页Journal of Guangzhou Maritime University

摘　　要：引射器是家用灶具燃烧器的关键部件,本文针对平板火焰直喷燃烧器的引射系统进行了多目标参数化研究.研究结果表明:收缩管、混合管、扩压管的长度越长,则一次空气系数越大、火孔出气均匀性越好.本文以最大的引射系数与最小的不均匀系数作为目标函数,得到了引射系统的最优参数组合.通过实验的方法对比验证了优化前后的一次空气系数、热效率、CO排放量的等参数,实现了燃烧器性能提高的同时,说明了多目标参数化研究的可行性.Ejector consists of nozzle,primary air inlet,shrink tube,mix tube and diffusion tube,which is the core of burner.The performance of ejectors is influenced by primary air coefficient and uniformity of air-gas mixture.A research has been done on the parameterization design of burner ejector in this paper.The results show that the length of shrink tube,mix tube and diffusion tube influences the primary-air coefficient and uniformity of mixture flow through fire nozzles.In order to get the optimum length of shrink tube,mix tube and diffusion tube and get the maximum eject coefficient and minimum uniformity,simulation analysis have been done.The value of primary-air coefficient,thermal efficiency and CO emission from experiments could show the authenticity of parameterization design.

关 键 词：引射系统 一次空气系数 火孔出气均匀性 目标函数 参数化 

分 类 号：TK16[动力工程及工程热物理—热能工程]