Authors

Abstract

Livestock scale breeding is the inevitable trend of future livestock and poultry husbandry. Closed breeding requires excellent environment and livestock and poultry housings contain a lot of dust, pathogenic microorganisms and harmful gases, affecting the health of livestock and poultry and breeding personnel. Most of the common sterilization and dust collection devices for livestock and poultry housings on the market are too high energy consumption, and easy to cause secondary pollution. Therefore, an environmental purification device was designed to absorb dust in the air and kill harmful bacteria by using high voltage pulsed electric field. The device was designed using phase control principle and bundled conductor. COMSOL Multiphysics software was used to simulate the layout of single conductor, twin bundled conductor and quad bundled conductor. It was found that when the conductor was designed as twin bundled conductor or quad bundled conductor, the gradient distribution of spatial electric field intensity was more uniform and the downward trend of electric field was slower, which could effectively improve the dust collection and sterilization efficiency of the device. At the same time, a variety of electric field environments can be set up by using phase difference to meet different environmental requirements of livestock and poultry. The compound dust collection and sterilization device with phase-controlled bundled conductor for livestock and poultry housing space includes high voltage pulse generator, bundled conductor, high voltage special timer, insulator and other parts, which can effectively reduce the dust content in the air, the concentration of pathogenic bacteria, harmful gases, etc. after assembly test and can also reduce the humidity in the livestock and poultry housings.

Abstract in Chinese

畜禽规模化养殖是未来畜牧养殖的必然趋势，封闭饲养需要优良的环境，畜禽舍内含有大量灰尘、病原微生物和有害气体，影响畜禽动物和养殖人员健康。市面常见畜禽舍杀菌除尘装置大多能耗过高，且容易造成二次污染，为此，设计一款利用高压脉冲电场吸附空气中灰尘，杀灭有害病菌的环境净化装置，该装置设计利用相位控制原理和分裂导线，由COMSOL　Multiphysics软件模拟仿真单导线、二分裂导线、四分裂导线三种导线布设，发现导线设计为二分裂或四分裂时，空间电场强度梯度分布更均匀且电场下降趋势更缓慢，可有效提高装置除尘杀菌效率；同时利用相位差可设置多种电场环境，满足不同畜禽环境需求。空间相控分裂导线复合除尘杀菌装置包括高压脉冲发生器、分裂导线、高电压专用定时器、绝缘子等部件，组装后经测试可有效降低空气中灰尘含量、致病菌浓度、有害气体等，亦可降低畜禽舍内湿度。