锥形喷管出口结构对热烟雾机动力性能的影响  

Effect of Exhaust Cone Tube Structure on Power Performance of a Thermal Fogger

作　　者：周宏平[1] 郑加强[1] 邱景 崔业民 

机构地区：[1]南京林业大学机电工程学院,南京市210037 [2]广东南方通信集团,广州市510620 [3]南通市广益机电有限公司,江苏省南通市226631

出　　处：《农业机械学报》2002年第1期43-46,共4页Transactions of the Chinese Society for Agricultural Machinery

摘　　要：通过对不同出口直径喷管出口燃气压力与流速、燃油消耗等参数的测试、对比与分析 ,研究了喷管出口结构对烟雾机工作性能的影响 ,结果表明 :将直喷管出口段改为渐放型锥形喷管后 ,烟雾机动力性能没有降低 ,且有利于减小积炭。In this paper, exhaust cone tubes with different outlet diameters were designed. The effects of the exhaust cone tube structure on the power performances of a fogger were investigated through the tests of the air pressure and the outlet velocity of the exhaust tube and the fuel consumption. The results showed that changing the exhaust tube from a straight tube into a cone one would not decrease the power performance of a thermal fogger; the outlet velocity of the exhaust tube would decrease as increasing of the outlet diameter; and the exhaust cone tube is helpful to decrease the carbon deposits.

关 键 词：热烟雾机 农药施用 锥形喷管 积炭 出口结构 动力性能 

分 类 号：S49[农业科学—植物保护]