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根据农田作业设备臭氧喷雾机臭氧产量低、放电室材料容易被击穿等情况,对放电室材料进行合理假设,建立放电室热平衡状态下的简化传热数学模型。利用ansys14.5有限元分析软件,建立放电室温度场的三维有限元模型。以MTY-1圆管型放电室为例,进行温度场初步模拟计算,获得放电室内不同材料的稳态温度场云图分布。结果表明:在内壁管、外壁管相同温度下,整个放电室内温度场分布比较均匀,不同的三种介质材料例如石英玻璃、陶瓷、搪瓷径向温度云图呈现明显变化,这为放电室材料的优化改进提供依据。
According to the low ozone production of ozone sprayer and easy breakdown of discharge chamber materials, the reasonable assumptions of the discharge chamber materials are established to establish a simplified heat transfer mathematical model of the discharge chamber in thermal equilibrium. Using ansys14.5 finite element analysis software, a three-dimensional finite element model of the discharge chamber temperature field was established. Taking MTY-1 tubular discharge chamber as an example, a preliminary calculation of the temperature field was carried out to obtain the cloud distribution of the steady-state temperature field of different materials in the discharge chamber. The results show that the distribution of the temperature field in the whole discharge chamber is uniform at the same temperature of the inner wall tube and the outer wall tube, and the radial temperature cloud of three different dielectric materials such as quartz glass, ceramic and enamel shows obvious changes, which is the optimization of discharge chamber material Improve the basis provided.