Study on the Aerial Equipment of Spraying Pesticide and the Techniques of Monitoring Ⅰ.Property Test of the Aerial Equipement of Spraying Pesticide

This paper reported the test methods and results of the technical properties of the HU2-HW1 spraying equipment of ultra low volume when being equipped with the petrel 650B motor glider. No.1 and No.2 rotary atomizer were tested in the laboratory wind cave of supersonic speed of 27 and 33 m/s. The rotational speed of No.1 rotary atomizer was at 7 460 and 9 350 rpm respectively,and that of the No.2 was at 8 420 and 11 800 r/min respectively. The pump pressure was between 3.5 and 5.0 kg/cm2,and the flow rate was 15.0～21.0 L/min. The swath width was 40 m. The droplets size was 150～170 μm (volume median diameter),and the number of droplets per cm2 was 9～16. The droplets ratio of diffusion was 0.77.All the results showed the properties of the HU2-HW1(ULV) when being equipped with the petrel 650B motor-glider were excellent.