| It had directly connection with the pros,droplet size and spray coverage to effects of spraying sanitization.Theory about assist-spraying was analyzed,then decided that hydraulic spraying combined with cross-flow fan achieving droplet secondary crusher and droplet distance flights and large area coverage of the reunification of further increasing the effectiveness of sanitization.Structure and principles of cross-flow fan were analyzed.Fluid simulation with FLUENT access to the fan exodus market trend,determine reasonable sprinkler installation location.In this trial system,XAPF plastic nozzle JGD1500INXP4 pump and valve were chosen.Wind speed and pressure and other factors on the effects of spraying tested.The droplet size,uniformity,coverage rates have been computed, Droplet distribution curve was drew using image processing.The test showed:(1)Based on cross-flow fan air-assist Spraying sanitization system,it runs reliably.It is easy to adjust pressure,flow speed;(2)Air-assist spraying can achieve micro-mist spray,a narrow droplet spectrum, smaller size,higher uniformity,in a nutshell,air-assist spraying have higher quality;(3)When the water pressure less than 0.3 MPa,with increasing pressure,droplets became smaller,uniformity gradually increase,when more than 0.3 MPa pressure spray after spray droplet evenness lower spray effects decline.(4)Droplet uniformity and range were tested using image analysis methods showed that high wind speed spraying can has higher degree of uniformity.Cross-flow fan spraying sanitization devices has high-speed stability and flow of hydraulic sprayer for the combination of the fog-generating,spraying sanitization for the birdhouse to provide an efficient method.Finally,the cross-flow fan spraying delivery system in the birdhouse spraying sanitization of the system design. Cross-flow fan was used to spraying sanitization,cooling,ventilation in the integration of multi-function devices needed for on-site properties.
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