Intelligent anti-corrosion magnetic flowmeter composition structure

Project Overview

The intelligent anti-corrosion magnetic inductive flowmeter is mainly composed of a sensor and a converter. It can be divided into integrated type and split type according to the connection method between the two. The sensor is often called the primary part and the converter is called the secondary part. This article mainly gives a brief understanding of the sensor part of the magnetic inductive flowmeter.

The intelligent anti-corrosion magnetic inductive flowmeter sensor is composed of flange, conduit, lining, electrode, excitation coil, magnetic yoke, etc.

1. Flange. Flange is a component used for mechanical connection. Its main materials are generally divided into 304 stainless steel, 316 stainless steel and carbon steel, etc., and are generally processed according to metric dimensions.

2. Catheter. The function of the conduit is to allow the conductive liquid to be measured to pass through. It must use non-magnetic conductive materials with low electrical conductivity, low thermal conductivity and certain mechanical strength to avoid affecting the magnetic circuit distribution of the magnetic field and ensure the accuracy of measurement and the stability of the zero point.

3. Lining. The liner is an insulating material that covers the inner wall of the duct to protect it. It is in direct contact with the liquid being measured. Linings are usually polytrifluoroethylene, polytetrafluoroethylene (F-4), tetrafluoroethylene and hexafluoropropylene (F-46), tetrafluoroethylene and ethylene (F-40), neoprene, acid-resistant rubber, acid-resistant Enamel, polyurethane rubber, ceramic and other materials are available.

4. Electrodes. The function of the electrode is to elicit an induced potential signal that is proportional to the measured value. It is in direct contact with the medium and needs to be flush with the lining when installed. Electrode materials include: stainless steel, Hastelloy B, Hastelloy C, tantalum, titanium, platinum, 316L, etc. Commonly used are stainless steel and Hastelloy gold. The selection of electrode materials must not only consider chemical properties but also good electrical conductivity.

5. Excitation coil. The excitation coil is a magnetic circuit system used to generate a constant magnetic field. It is installed directly on the conduit and is perpendicular to the axis of the electrode. The distribution of the magnetic field will affect the linearity and repeatability of the magnetic inductive flowmeter. The excitation coil is usually protected by a fully enclosed shell, which usually adopts a fully welded structure to enhance the adaptability to ambient temperature and humidity.

6. Magnetic yoke. The yoke plays a role in guiding and concentrating the magnetic field. Through the function of the magnetic yoke, the magnetic lines of force can be evenly distributed to the vertical surface of the electrode axis, so as to improve the measurement accuracy and measurement stability of the sensor.

HSD intelligent anti-corrosion magnetic inductive flowmeter is currently widely used in the field of fluid flow measurement. Its manufacturer, Supmea Measurement and Control, provides measurement plan formulation, instrument selection, installation guidance, after-sales and related technical consultation. If you have any questions, please feel free to contact us directly.