基于正交法扁双P型辐射管仿真模拟及结构优化

发布时间：2018-06-24 09:13

本文选题：双P型辐射管 + 热效率　；参考：《工程科学学报》2017年04期

【摘要】：在扁形双P型辐射管的基础上,研究了扁双P型辐射管的中心管的等效半径、支管的等效半径、中心管和支管间距、管长等结构尺寸对辐射管性能的影响.通过建立正交试验方案对辐射管结构尺寸以及燃烧器喷口结构位置进行优化.结果表明,影响辐射管表面温差的最明显因素依次:中心管与支管的间距、中心管等效半径、管长和支管等效半径;影响辐射管辐射功率的明显因素依次:管长、中心管等效半径、中心管与支管的间距和支管的等效半径.上下空气喷口与左右空气喷口大小比例在7∶3和9∶1比较接近,辐射管的性能参数最好;左右空燃气喷口间距为50 mm,上下空气喷口间距在60 mm的情况下辐射管表面的温度不均匀系数最小,为0.058.
[Abstract]:Based on the flat double P type radiation tube, the effects of the equivalent radius of the center tube, the equivalent radius of the branch tube, the distance between the central tube and the branch tube, and the length of the tube on the properties of the radiation tube are studied. The structure size of the radiator and the position of the burner nozzle were optimized by establishing the orthogonal test scheme. The results show that the most obvious factors affecting the radiation tube surface temperature difference are the distance between the central tube and the branch tube, the equivalent radius of the central tube, the length of the tube and the equivalent radius of the branch tube, and the obvious factors affecting the radiation power of the radiation tube are as follows: tube length, The equivalent radius of the central tube, the distance between the central tube and the branch tube, and the equivalent radius of the branch tube. The ratio of the upper and lower air vents to the left and right air vents is close at 7:3 and 9:1, and the performance parameters of the radiating tubes are the best. When the distance between the left and right air gas nozzles is 50mm and the distance between the upper and lower air nozzles is 60mm, the temperature inhomogeneity coefficient of the radiant tube surface is the smallest, 0.058.
【作者单位】：北京科技大学机械工程学院;
【基金】：“十三五”国家重点研发计划资助项目(2016YFB0601300)
【分类号】：TG155.1

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