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差压式液位计怎样避免减少误差

编辑:华恒仪表 发布日期: 2020-10-29 二维码分享

  差压式液位计广泛应用于石油、化工、冶金、电力、食品、造纸、医药、纺织等工业生产过程检测控制系统中,检测液体差压、表压、绝压,以及开口或密闭容器内液体的液位。该产品将被测信号转换成4~20mADC输出信号(智能型可带Hart协议通讯),与其他单元组合仪表或工业控制计算机配合,组成检测、记录、控制等工业自动化系统。
 
  Differential pressure level gauges are widely used in the detection and control systems of petroleum,chemical,metallurgy,electric power,food,paper,medicine,textile and other industrial production processes to detect liquid differential pressure,gauge pressure,absolute pressure,and in open or closed containers The level of the liquid.The product converts the measured signal into a 4-20mADC output signal(intelligent type can communicate with Hart protocol),and cooperates with other unit combination meters or industrial control computers to form industrial automation systems such as detection,recording,and control.
 
  差压式液位计减少误差方法:
 
  Differential pressure level gauge reduces error method:
 
  1.导压管应尽可能短些;
 
  1.The pressure guiding tube should be as short as possible;
 
  2.当测量液体或蒸汽时,导压管应向上连接到流程工艺管道,其斜度应不小于1/12;
 
  2.When measuring liquid or steam,the pressure guiding tube should be connected upward to the process pipeline,and its slope should not be less than 1/12;
 
  3.对于气体测量时,导压管应向下连接到流程工艺管道,其斜度应不小于1/12;
 
  3.For gas measurement,the pressure guiding tube should be connected downward to the process pipeline,and its slope should not be less than 1/12;
 
  4.液体导压管道的布设要避免出现高点,气体导压管的布设要避免出现低点;
 
  4.The arrangement of liquid pressure guiding pipes should avoid high points,and the arrangement of gas pressure guiding pipes should avoid low points;
 
  5.两导压管应保持相同的温度;
 
  5.The two pressure guiding tubes should maintain the same temperature;
 
  6.为避免磨擦影响,导压管的口径应足够大;
 
  6.In order to avoid the influence of friction,the caliber of the pressure guiding tube should be large enough;
 
  7.充满液体的导压管中应无气体存在;
 
  7.There should be no gas in the pressure pipe filled with liquid;
 
  8.当使用隔离液时,两边导压管的液位要相同。
 
  8.When using spacer fluid,the liquid level of the pressure guiding tube on both sides should be the same.
 
  华恒仪表可以为您提供专业的差压式液位计选型建议和可靠的差压式液位计产品,有任何疑问可以致电180 9235 6836,大家会有专业的技术人员帮您解答,希翼能带给您帮助!
 
  Huaheng Instrument can provide you with professional differential pressure level gauge selection suggestions and reliable differential pressure level gauge products.If you have any questions,you can call 180 9235 6836,and we will have professional technicians to help you answer.Hope Can bring you help!


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