Design And Research Of Micro Aerosol Collection Device In Smart Cattle Farm

Although modern farms have a relatively complete breeding safety defense system,the prevention and timely monitoring of diseases are still very weak,and it is impossible to understand the quality of the air environment in time,nor can it monitor the situation of air microbial aerosols,resulting in low timeliness of prevention and control methods in the breeding process,and confusion in subsequent disinfection and sterilization strategies,causing unnecessary losses to the quality and output of products.In view of this phenomenon,this paper designs a micro-aerosol collection device based on the principle of motor,combines smart agricultural technology to timely understand the environmental data of the field,do a good job in risk prevention,and ensure the improvement of the overall environment of livestock breeding.After reviewing a large number of relevant data and analyzing the existing microbial aerosol collection devices,it is found that most of the existing aerosol collection devices have complex structure,large volume and high difficulty in operation,in view of this situation,this paper proposes a variety of design schemes for miniaturized aerosol collection devices and demonstrates the scheme,and finally chooses to design a miniaturized aerosol collection device from the perspective of motor working principle,combined with turbofan structure,and can be equipped with membrane collection and cyclone collection devices respectively.The work and research are as follows:(1)The fluent simulation test was carried out for the fan structure and cyclone collection device,and the relationship between fan speed and outlet air flow was studied for the fan structure,and it was concluded that the collection requirement of 3.5L/min airflow volume could be reached when the fan speed was about 7000rad/min;For cyclone collection device,its collection efficiency of submicron particles increases with the increase of inlet gas velocity,for 1～15μm particles,under the same gas speed,with the increase of particle size,its collection efficiency is also increasing,under the same particle size,with the increase of gas velocity,the collection efficiency gradually increases,but after the gas velocity reaches a certain value,the improvement of collection efficiency reaches a certain threshold.(2)Through consulting data and theoretical calculation,the structural parameters of the device were determined and the structural design of each component was completed,and the three-dimensional model and two-dimensional structural drawings of the device were drawn by using SOLIDWORKS and CAD software.(3)Design the monitoring system of aerosol collection device under the premise of aerosol collection device application in smart cattle farm,and the monitoring system includes control system and data acquisition system.The data acquisition system includes equipment selection,sensor communication,PLC and touch screen communication,data display and storage,and data acquisition and storage;The control system includes the selection of equipment,the design of the main circuit of the control system,the design of the control panel,the design of the PLC program and the design of the touch screen interface,so as to realize the manual/automatic control of the aerosol collection device.After completing the control system and data acquisition system,the remote control design is carried out to facilitate remote monitoring of the farm.This design not only improves the structure of the aerosol collection device,but also combines it with the monitoring system to control the collection equipment and understand the air environment more conveniently,and timely disinfection and sterilization strategies can be made for the farm,which is of great significance for the environmental monitoring and disease treatment of the aquaculture industry.