CAJ | 학술논문

介绍DW1滤膜堵塞式污染检测仪的结构及工作原理，在Fluent软件中导入污染检测仪微孔滤膜部分流场的三维图，建立流场分析的数学模型，对污染检测仪在工作过程中流体的速度场、压力场、流体轨迹进行仿真分析。结果表明，污染仪检测流场以中心对称，两个涡流区域对整体流场影响很小，受黏性阻力影响，速度和压力在多孔介质区域均有跃降；增加进口段管径可以获得较大的跨膜压力差。流场模拟实现了检测仪检测过程的可视化，分析结果可以对滤膜堵塞型污染度检测装置的设计优化提供参考。
개소DW1려막도새식오염검측의적결구급공작원리，재Fluent연건중도입오염검측의미공려막부분류장적삼유도，건립류장분석적수학모형，대오염검측의재공작과정중류체적속도장、압력장、류체궤적진행방진분석。결과표명，오염의검측류장이중심대칭，량개와류구역대정체류장영향흔소，수점성조력영향，속도화압력재다공개질구역균유약강；증가진구단관경가이획득교대적과막압력차。류장모의실현료검측의검측과정적가시화，분석결과가이대려막도새형오염도검측장치적설계우화제공삼고。
The configuration and testing principle of DW1 Medium?Blocking?Type fluid contamination level measurer were simply introduced. The three?dimensional image of flow field around micro?pore filter membrane sensor was imported to the Fluent software, and the mathematic model for analyzing the flow field was established. Based on Fluent, the veloci?ty field, the pressure field and the fluid trajectory during testing with DW1 fluid contamination level measurer were ana?lyzed. The results show that the flow field is centro?symmetric, two eddy regions have little influence on the whole flow field, and the velocity and the pressure jump down during the porous zone since the influence of viscosity resistance. In?creasing the pipe diameter in the inlet region can get a larger trans?membrane pressure. Visualization of detection process was realized by flow field simulation method, and the simulation results can provide a reference for improving the structure of Medium?Blocking?Type fluid contamination level measurer.