电子称重模块在生产过程中的特殊应用
目前,化工行业中用于液体储存和灌溉材料的计量装置主要是流量计、计量泵、液位仪表等产品。其中,流量计具有测量精度高、安装调试方便等特点,一般安装在储存和灌溉材料的进出口管道中。用于测量管道流体的瞬时流量和累积流量,主要用于流量测控系统,但其缺点是测量精度受安装条件和温度变化的影响较大,而在计算蓄水和灌溉中的物料重量时,需要通过进出口。流量计只能在连接到累加器或DCS系统时进行计算,其精度受各种因素的影响。目前,电磁流量计、质量流量计、超声波流量计等产品是市场上应用广泛的产品,但产品价格昂贵。它很难校准,一般企业很少使用。 计量泵一般用于测量储存和灌溉材料的流出流量,但无法测量储存和灌溉材料的储存重量,价格也非常昂贵,这限制了生产过程的使用。 ----自动秤重机厂家
早期,自动检重秤也用于测量储存和灌溉材料的重量,其特点是测量精度高,测量精度不受温度变化的影响。根据静压测量原理,通过测量储罐底部的静压,测量储罐的横截面积??储罐提前安装时,材料重量按公式P=F/S计算,对压力变送器的要求很高,安装更复杂,难度更大的是对填充体的加工精度和材料的横截面积有严格的要求??要求该列保持在同一水平。如果有任何偏差,将直接影响测量精度,仅适用于开放式容器。现在很少用了。 近年来,使用称重模块作为存储和灌溉材料的测量已被企业广泛采用。其特点是安装方便,价格低廉,不受场地和蓄水灌溉形状的限制。它测量精度高,易于校准。它可以用来储存和灌溉。用于物料进出仓库的计量,也可用于工艺流程控制。根据储罐的形状和安装方式,一般可选择3或4个称重模块。它特别适用于定量喂料系统。
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