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Installation and commissioning methods and precautions for float level gauge

浮标液位计是一种简易的液位测量仪表,它适用于石油化工系统中贮有侵蚀性介质的槽、罐、油田、油库等的平底锥盖及拱顶容器以及一般企业、民用建筑的水塔(水箱)所需价格低廉的液液位测量,以解决人工测量液位的困难。今天浮标液位计厂家给大家介绍浮标液位计安装调试方法及注意事项,希望给大家参考及帮助。

一、浮标液位计安装调试

  1. 按照两个导向滑轮的间距,在容器上方开三个孔,分别焊接导向螺栓管和滑轮导管;在容器外侧焊接标尺支架,高度以保持两个导向滑轮水平为准
  2. 浮标液位计的调零
    在浮标液位计安装时,罐内应还未有被测介质,浮标在罐内的底部时,重锤指针部分的红色尖头指示应指在标尺测量范围的顶部“零”值上,否则要调整钢丝长度。
  3. 浮标液位计量程调整
    浮标液位计在调好零位的基础上,再把浮标拉到容器的顶部或很大测量点上,重锤指针部分的红色尖头应指在标尺的底部位置上,即落在标尺很大量程点上。

二、浮标液位计安装使用和注意事项

  1. 导向钢丝下支承焊接安装:
    在容器底部按照液位计浮子运动方向要求确定位置,焊接或铆接好固定导向钢丝下支承。如设备不具备焊接条件,可采用重锚固定方式固定导向钢丝下支承。如容器内液面波动不大,可不安装导向钢丝。
  2. 导向钢丝的安装:
    ①用力使钢丝拉直,并固定在下支承上,注意不要使钢丝有弯曲或打结现象,以免影响浮子上下移动。
    ②导向钢丝通过浮子的导向环,后穿入吊勾螺钉,把钢丝的终端固定并用导线夹头夹紧,并旋紧吊勾螺母,使其处于紧张状况,再将上螺母拼紧,以防松动,然后盖好封盖。
    ③两根导向钢丝要垂直地面,而且相互平行,保证两者之间距离与浮子的导向环的中心距一致
  3. 标尺安装:
    标尺的长度是按用户在订货时所提供的测量范围而确定的,在安装时要求:
    ①标尺的连结部分应做到平直、光滑、不应有凹凸现象,以免影响重锤指针的正常运行,或引起测量的误差。
    ②标尺应与贮罐内液面相垂直,不应有倾斜现象, 标尺安装的垂直度不能大于5°,以免造成重锤指针卡死,使测量失败。
    ③在焊接标尺脚架时,应尽量做到安装表面在同一平面上,安装孔在同上直线上,即做到确保标尺的刻度面及重锤指针两侧导向均要平直称为直线,使重锤指针在标尺槽中灵活升降。
  4. 浮标连接钢丝及重锤指针的安装:
    浮标与连接钢丝的一端用导线夹头夹紧固定,然后将连接钢丝的另一端装进事先安装好的两个导向滑轮盒内,并和重锤指针相连接,用导线夹头夹紧固定,调整各导向滑轮支架,使连接钢丝与水平垂直,使浮标在导向钢丝上活动灵活,有轻滑感、无卡死、扭曲、打结、打卷或损伤等现象。

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