Kaifeng Split type Electroplated Water Electromagnetic Flow Meter

brief introduction：Electromagnetic flowmeter is20century60A new type of flow measurement instrument that has rapidly developed with the advancement of electronic technology. Electromagnetic flow meters are made according to Faraday's law of magnetic induction and are used to measure the volumetric flow rate of conductive liquids. Due to its unique advantages, it has been widely used in the measurement of various conductive liquids in industry. For example, measuring various corrosive liquids such as acids, bases, salts, etc; Various flammable and explosive media; Various industrial wastewater, pulp, sediment, etc

Product scope of application:

EMFMsplit typeElectroplating waterflowmeterIt consists of two parts: sensors and converters, and works based on Faraday electromagnetic induction rate to measure the conductivity of liquids or two-phase media. It is required that their conductivity should generally be greater than5US/cmThe original conductivity of tap water is about100-500US/cm）, can be used to measure various media such as acid, alkali, salt solution, pulp, slurry, etc., but not in the media Can contain more ferromagnetic substances and a large number of bubbles.

split typeElectromagnetic FlowmeterIt is a major flow meter widely used in industrial sectors such as petroleum, chemical, metallurgical, textile, papermaking, environmental protection, food, as well as municipal management and water conservancy construction for flow measurement.

Kaifeng Split type Electroplated Water Electromagnetic Flow Meter

working principle:

EMFMSplit type electroplating water flowmeterThe measurement system of the sensor is based on Faraday electromagnetic induction rate, which is connected to the axis of the measuring tube and the magnetic field lines of the magnetic field A pair of detection electrodes are installed on the mutually perpendicular pipe walls. When the conductive liquid moves along the axis of the measuring pipe, it cuts the magnetic field lines and generates induced potential. This induced potential is detected by two electrodes on the measuring tube, with a value of:

E=KBVD

Among them:EInduced potential;KInstrument constant;BMagnetic induction intensity;VMeasure the average flow velocity within the cross-section of the pipe;DMeasure the inner diameter of the measuring tube.

When measuring flow rate, the fluid flows through a magnetic field perpendicular to the flow direction, and the flow of conductive liquid induces an electric potential proportional to the average flow velocity. Therefore, it is required that the measured flowing liquid has a conductivity higher than the minimum limit. The induced voltage signal is detected through two electrodes. And it is transmitted to the converter through cables, and after signal processing and related operations, the accumulated flow rate and instantaneous flow rate are displayed on the converter's display screen.

Instrument features:

1There is no obstruction or moving parts inside the measuring tube, so it will not cause additional energy loss or blockage, resulting in significant energy-saving effects. It is particularly suitable for measuring liquid-solid two-phase flows such as sewage, mud, slurry, coal water slurry, pulp, etc.

2Only the lining and electrode are in contact with the measured medium. As long as the lining and electrode materials are selected reasonably, good corrosion resistance and wear resistance can be achieved. Therefore, various chemical solutions such as strong acids and bases can be measured.

3Low installation requirements. The front straight pipe section only needs5DThe rear straight pipe section is2D（DThe inner diameter of the selected instrument.

4The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity, and can measure positive values/The flow in opposite directions provides a good means for accurately measuring flow.

5The instrument has low power consumption. less than5VA.

6The converter has good interchangeability and can achieve accuracy without the need for real-time calibration. Due to its various advantages, electromagnetic flow meters are becoming increasingly widely used in various industries and have become a popular choice for liquids Select instruments for flow measurement.

Instrument advantages:

EMFMSplit type electroplating water flowmeterMain advantages:

　　1.There are no movable parts or protruding parts inside the measuring pipe, so the pressure loss is very small, almost equal to zero. This should be easy for everyone to understand. Unlike throttling devices, electromagnetic flow meters generate differential pressure due to throttling phenomena, resulting in pressure loss on the pipeline on site.

　　2.There is a linear relationship between output current and flow rate, and it is not affected by the physical properties of the fluid on site(Temperature, pressure, viscosity)The impact of changes and flows also has a wide range of flow rates. This is also one of the main reasons why electromagnetic flow meters have a wide flow range, because unlike differential pressure flow meters, flow and output are in square root relationship, which limits the flow range.

　　3.The sensing element does not come into contact with the measuring medium, so it can be used for measuring corrosive media.

　　4.Quick response, suitable for measuring pulsating flow,Electromagnetic FlowmeterThis characteristic is mainly determined by its own structure.

　　5.Large caliber range, electromagnetic flowmeter can be made into1mmarrive2000mmThe above pipeline specifications.

The above mainly introduces the advantages of electromagnetic flow meters. As mentioned earlier, no flow meter is omnipotent. Now let me introduce the limitations of electromagnetic flow meters:

　　1.Firstly, the tested medium must be a conductive medium, generally requiring its conductivity to be within10-4s/cmthe above

　　2.Due to the limitations of the catheter lining material, the temperature range generally used is200Below the temperature, and because the electrode is installed on an internal pipeline, the pressure cannot be too high