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采用相位多普勒粒子分析仪(PDPA)对带空气旋流器的双油路离心喷嘴的雾化特性进行了实验研究,供油压力的工作范围在0.3～2.1MPa,采用轴向逆流器,旋流器叶片出口角为79°,旋流器前后空气压降在0.03～0.15MPa,实验得到了索太尔平均直径(SMD)与喷雾锥角随供油压力与风速的变化规律.结果表明:在相同供油压力下,旋流器通入空气后,喷雾锥角值较未通入旋流空气时将增大15°～20°,索太尔平均直径比未通入旋流空气时减小40%.
The atomization characteristics of double-oil centrifugal nozzles with air cyclone were studied by phase-Doppler particle analyzer (PDPA). The operating range of oil supply pressure is 0.3 ~ 2.1MPa. The axial countercurrent device, The outlet angle of the swirler was 79 ° and the air pressure drop before and after the cyclone was 0.03 ~ 0.15MPa. The variation of the Sothyr diameter (SMD) and the spray cone angle with the oil supply pressure and the wind speed were obtained. : Under the same oil supply pressure, after the cyclone is introduced into the air, the spray cone angle value will be increased by 15 ° ~ 20 ° compared with that when no swirling air is passed in. When the Sothir’s mean diameter is smaller than that without swirling air Reduce by 40%.