摘要
设计出一种微型气体监测仪比对用非甲烷总烃采样装置,并描述其具体结构和使用方法。该采样装置包括承接组件、导向组件和过滤组件。承接组件包括装配筒、承接辊,主要是对装置结构起到承接作用,外接进风管的装配筒内部设有电加热网和随动叶轮,可以对抽取的环境废气进行加热,规避温湿度的影响。导向组件包括导向环、弧形导向边、链轮传动组、传动杆和辅助辊,不仅起到定向导向作用,而且凸部的传感器能够触发驱动装置和链轮传动组,通过齿轮带动放卷辊和收卷辊的定向运动。过滤组件包括保护壳、清洁辊、控制器、齿轮组、放卷辊、收卷辊和滤网布,滤网布对从弧形采样口进入的气体进行过滤,当对应弧形采样口处的滤网布堵塞满杂质时,进而触发启动驱动装置使得放卷辊放卷滤网布,收卷辊收卷滤网布,从而更换滤网布的使用位置,避免对应弧形采样口处的滤网布产生堵塞,影响采样样品气体的质量。该采样装置整体结构简单、易操作,能够显著提高样品气体的采样质量。
Design a non methane total hydrocarbon sampling device for comparison of micro gas monitors,and describe its specific structure and usage method.The sampling device includes a receiving component,a guiding component,and a filtering component.The bearing components include an assembly cylinder and a bearing roller,which mainly play a bearing role in the device structure.The assembly cylinder connected to the external air inlet pipe is equipped with an electric heating network and a follow-up impeller inside,which can heat the extracted environmental waste gas to avoid the impact of temperature and humidity.The guide component includes a guide ring,curved guide edge,sprocket drive group,transmission rod,and auxiliary roller.It not only plays a directional guiding role,but also the sensor at the convex part can trigger the driving device and sprocket drive group to drive the directional movement of the unwinding and winding rollers through gears.The filtering component includes a protective shell,cleaning roller,controller,gear group,unwinding roller,winding roller,and filter cloth.The filter cloth filters the gas entering from the arc sampling port.When the filter cloth at the corresponding arc sampling port is blocked with impurities,it triggers the driving device to activate the unwinding roller to unwind the filter cloth,and the winding roller to unwind the filter cloth,thereby changing the position of use of the filter cloth,avoid clogging of the filter cloth at the corresponding curved sampling port,which may affect the quality of the sampled gas.The overall structure of the sampling device is simple and easy to operate,which can significantly improve the sampling quality of the sample gas.
作者
张亚飞
李亚飞
李学辉
Zhang Yafei;Li Yafei;Li Xuehui(Shanghai Institute of Measurement and Testing Technology,Shanghai 200233,China)
出处
《山东化工》
CAS
2024年第2期236-238,共3页
Shandong Chemical Industry
基金
上海市市场监督管理局2022年度科技计划项目(2022-23)。
关键词
气体监测仪
非甲烷总烃
采样装置
过滤组件
gas monitor
non methane total hydrocarbon
sampling device
filter assembly
