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Maintenance work of top mounted magnetic flap level gauge

顶装磁翻板液位计是利用磁藕合原理进行工作的,顶装磁翻板液位计弥补了玻璃管液位计不能在高温高压下工作且易碎的多重缺点。顶装磁翻板液位计有侧装和顶装二种安装方式,无论那种方式都可以捆绑远传装置,使顶装磁翻板液位计即可以就地显示液位。

  1. 顶装磁翻板液位计本体周围不容许有导磁物质接近,禁用铁丝固定,否则会影响顶装磁翻板液位计的正常工作;
  2. 如用户自行采用伴热管路时,要选用非导磁材料,如紫铜管等。伴热温度根据介质情况确定;
  3. 顶装磁翻板液位计安装要垂直,顶装磁翻板液位计与容器引管间应装有球阀,便于检修和清洗;
  4. 介质内不应含有固体杂质或磁性物质,以免对浮子造成卡阻;
  5. 顶装磁翻板液位计使用前应先用校正磁钢将零位以下的小球置成红色,其它球置成白色;
  6. 打开底法兰,装入磁性浮子(注意:重端带磁性一端向上,不能倒装。);
  7. 调试时应先打开上部引管阀门,然后缓慢开启下部阀门,让介质平稳进入主导管(运行中应避免介质急速冲击浮子,引起浮子剧列波动,影响显示准确性),观察磁性红白球翻转是否正常,然后关闭下引管阀门,打开排污阀,让主导管内液位下降,顶装磁翻板液位计据此方法操作三次,确属正常,顶装磁翻板液位计即可投入运行(腐蚀性等特殊液体除外);
  8. 应根据介质情况,不定期清洗主导管清除杂质;
  9. 对超过一定长度(普通型>3米、防腐型>2米)的液位计,需增加中间加固法兰或耳攀作固定支撑,以增加强度和克服自身重量;
  10. 顶装磁翻板液位计的安装位置,应避开或远离物料介质进出口处,避免物料流体局部区域的急速变化,影响液位测量的准确性。

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