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磁浮筒液位计的校验及常见故障处理

时间:2019-03-16 00:00 编辑:[db:编辑] 点击:
p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; color: rgb(102, 102, 102);">1 /span>/strong>a href="http://www.hgwp.cn/" target="_self">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; color: rgb(102, 102, 102);">磁/span>/strong>strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液位计/span>/strong>/a>strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">先容/span>/strong>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-indent: 28px;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">电动浮筒液/span>(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">界/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">位计可对工艺容器内液位或界位进行连续测量和就地控制。该类仪表是基于浮力原理工作的,当液/span>(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">界/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">位在零位时,扭力管受到浮筒重量产生扭力矩/span>(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">这时扭力大/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">,扭力管转角处于“零”度;当液位逐渐上升时,浮筒在液体浮力的作用下,也随着上升,扭力管产生的扭力矩逐渐减小,此时将其产生的转角β由变送器转换成/span>4span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">~/span>20mADCspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">信号,这信号正比于被测量液/span>(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">界/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">位。浮筒液/span>(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">界/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">位计测量原理图如图/span>1span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">所示:/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-align: center;">p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; margin-left: 48px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">1--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">截止阀;/span>2---span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">外浮筒;/span>3--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">变送器;/span>4--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">扭力管;/span>5--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒;/span>6--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">排污阀;/span>7--span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">放空堵头/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; margin-left: 48px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-align: center;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">图/span>1 span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液(界)位计测量原理图/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; color: rgb(102, 102, 102);">2 /span>/strong>strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液位计的校验/span>/strong>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-indent: 28px;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液位计的校验方法常用的有水校法和挂重法。本文主要对挂重法进行简单先容。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.1 span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">准备工作/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴器具检查/span>   p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆检查电子称,游标卡尺,钢卷尺合格证是否齐全/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆检查直流稳压电源/span>,span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">数字多用表/span>,span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">直流电阻箱合格证是否齐全/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆检查标准砝码,胶锤,手持终端及托盘是否齐全/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵设备调整/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆稳压电源电压调到(/span>24span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">±/span>0.5span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">)/span>VDCspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">,然后关闭电源/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆电阻箱调整在/span>250~500span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">Ω之间/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆数字多用表通电,选择正确档位/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑶仪表外观检查/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆结构完整性检查/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆检查并抄录仪表铭牌的相关信息/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.2span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">线路连接/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴浮筒与标准仪表的正确连接/span>    p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵电源性/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑶线路检查,回路上电/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑷仪表通电预热(/span>5minspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">)/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">实验室校验浮筒实物图如下:/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-align: center;">img src="/Uploads/image/20180604/1528071694669300.png" title="2.png" style="padding: 0px; margin: 0px auto; border: none; display: block; max-width: 100%;"/>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.3span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">测量/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴用天平秤出内筒和托盘重量/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆天平调水平/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆物件必须置于天平中央/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆秤出内筒和托盘重量/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵用钢卷尺测量内筒长度,用游标卡尺测量内筒直径/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆两端和中间三点检测/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆应检查游标卡尺零点/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆游标卡尺与轴线应垂直/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.4span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">耦合连接与漂移检查/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴松开耦合连接螺帽/span>   p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵挂筒重量,锁紧耦合连接螺帽/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑶标记干燥耦合点/span>Mary Dry Couplingp style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑷预热期间进行漂移检查/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆挂砝码使输出稳定在/span>4-20 mAspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">间某值/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆用胶锤轻敲仪表外壳,检查电路和机械连接/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">◆观察输出,敲击前后电流记录,变化不应超过允许误差值/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.5span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">计算/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">随机抽取组密度值ρ(ρ/span>1span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">、ρ/span>2span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">),计算仪表各点校验值。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">计算挂重质量的方法(测量介质以水为例)/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">测筒重/span>Mspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">:/span>1443span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">;托盘重/span>Tspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">:/span>75span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">筒长/span>Hspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">:/span>1250px(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">量程/span>)span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">;/span> span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">筒径/span>Dspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">:/span>125pxp style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">计算出/span>F(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮/span>)=1/4span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">π/span>D2Hspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">ρ/span>g=981.25span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">液位为零时,所需挂物种为筒重/span>Mspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">:/span>1443span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">满液位时,需挂重物为:/span>M- F(span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮/span>)=462span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">计算值减去托盘重量即为所挂砝码质量/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.6span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">组态/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">用/span>HART475span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">进行浮筒液位计的组态,组态参数如下:/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴内浮筒长度/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵内浮筒重量/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑶内浮筒体积/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑷浮筒安装方式/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑸浮筒测量方式/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑹轻介质密度/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑺重介质密度/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑻将/span>PV offset span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">设置/span>0p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑼挂零点重量,进行/span>trim PV zero span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">调整零位。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">2.7span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">校验/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑴零点校验/span> span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">在/span>475span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">手操器中,按如下步骤进行校验:/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">Devicesetup>Diag/service>Calbration>Applyvaluesp style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">4mAspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">时:挂砝码/span>1443-75=1368span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑵量程校验/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">20mAspan style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">时:挂砝码/span>462-75=387span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">克/span>span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑶对变送器进行零点及量程反复校验检查/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑷对变送器进行上行及下行五点校验/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">⑸填写校验单。/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; color: rgb(102, 102, 102);">3 /span>/strong>a href="http://www.hgwp.cn/" target="_self">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液位计/span>/strong>/a>strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">常见故障处理/span>/strong>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">浮筒液位计常见故障处理如下表所示:/span>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-align: center;">img src="/Uploads/image/20180604/1528071695592499.png" title="3.png" style="padding: 0px; margin: 0px auto; border: none; display: block; max-width: 100%;"/>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal;">strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; color: rgb(102, 102, 102);">4 /span>/strong>strong style="padding: 0px; margin: 0px;">span style="padding: 0px; margin: 0px; font-size: 16px; font-family: 宋体; color: rgb(102, 102, 102);">小结/span>/strong>p style="padding: 0px; margin-top: 0px; margin-bottom: 0px; font-size: 12px; font-family: Arial; color: rgb(51, 51, 51); line-height: 24px; white-space: normal; text-indent: 28px;">span style="padding: 0px; margin: 0px; font-size: 14px; font-family: 宋体; color: rgb(102, 102, 102);">在石油化工生产过程中,浮筒液(界)位计广泛应用于液位(界位)的测量过程中。掌握浮筒液位计的校验是每名仪表维修工的基本要求。本文主要讲述了浮筒液位计在实验室的挂重法校验,希翼对各位能有所帮助,文中有不当之处,敬请各位专批评指正。/span>

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