Top-mounted magnetic level gauge manufacturer: Analysis of problems in operation of magnetic level gauge


Release time:

2020-09-14

Problems caused by incorrect position of the electromagnetic flow sensor device of the magnetic level gauge are common, such as placing the flow sensor device at a high point of the pipe network where gas is easy to accumulate and retain; There is no back pressure behind the flow sensor, and the liquid is directly discharged into the atmosphere, forming a non-full pipe in the measuring tube. Installed on a vertical pipe flowing from top to bottom, it may be emptied, etc.

Magnetic level gaugeThe analysis of the problems caused by operation can be divided into: debugging period problems, operation period problems, piping systems and devices, environmental aspects, water aspects, etc.

 

CommonMagnetic level gaugeThe problems during commissioning mainly include improper installation, environmental interference and influence of fluid characteristics:

1Environmental aspects

Mainly pipeline stray current interference, space electromagnetic wave interference, large motor magnetic field interference.Magnetic level gaugePipeline stray current interference usually take good separate grounding maintenance can obtain satisfactory measurement, but in case of strong stray current in the pipeline(such as electrolysis workshop piping)It is also not necessarily restrained, and measures must be taken to eliminate the edge of the flow sensor and the pipeline. space electromagnetic wave interference-Generally, through the introduction of signal cables, single-layer or multi-layer shielding is usually used for maintenance, but shielding maintenance has also been encountered and cannot be restrained.

 

2Piping systems and installations, etc.

is usuallyMagnetic level gaugeProblems caused by incorrect position of electromagnetic flow sensor device are common, such as placing the flow sensor device at a high point of the pipe network where gas is easy to accumulate and retain. There is no back pressure behind the flow sensor, and the liquid is directly discharged into the atmosphere, which constitutes a non-full pipe in the measuring tube.;Installed on vertical pipes flowing from top to bottom, which may present emptying, etc.

 

3Fluid Aspects

Liquid containing an average dispersion of fine bubbles usually does not affect the normal measurement,Magnetic level gaugeThe measured volume flow rate is the sum of liquid and gas. The increase of bubble will make the output signal shake. If the bubble is so large that it flows through the electrode to cover the whole electrode appearance, the electrode signal circuit will be disconnected instantaneously, and the output signal will be shaken even more.

 

4Inner wall adhesion layer

DueMagnetic level gaugeThe timing of measuring suspended solid phase or dirty body is much more than that of other flow meters, and the probability of problems caused by the inner wall adhesion layer is relatively high. Therefore, the use of units to understand the importance of setting the control room instrument power line lightning protection equipment.

 

Key words:

Level gauge manufacturer, magnetic level gauge, magnetostrictive level gauge, bull's eye high pressure level gauge, top mounted magnetic level gauge


Qidong Hengsheng Instrument Equipment Co., Ltd.

Contact: Shen Yinjing
Telephone:0086-513-83799093,83782222,83832998(switchboard)
Fax:0086-513-83780668
E-mail : hsyb@hsyb.cn 

Address: No.6, Xinghui Street, Huiping Town, Qidong City, Jiangsu Province

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