The application of electromagnetic flowmeter in industrial water measurement reduces the difficulty of fluid measurement and improves the accuracy of measurement.
Electromagnetic flowmeter is a new type of flow measurement instrument developed rapidly with the development of electronic technology in the 1950s and 1960s. The structure of electromagnetic flowmeter is mainly composed of magnetic circuit system, measuring conduit, electrode, shell, lining and converter.
DN20 electromagnetic flowmeter-summary
The application of electromagnetic flowmeter in industrial water measurement reduces the difficulty of fluid measurement and improves the accuracy of measurement. Electromagnetic flowmeter can exclude the steel plant dust, high temperature and other factors, to protect the accuracy of industrial water measurement, to create a reliable measurement environment, give full play to the advantages of the application of electromagnetic flowmeter. Steel plant industrial water measurement is difficult, must reasonably control the use of electromagnetic flowmeter, in order to optimise the process of water measurement, to promote the measurement results can reach a good state.
DN20 electromagnetic flowmeter - composition
Electromagnetic flowmeter is the use of electrodes and fluid constitute a circuit to measure the electrical parameters generated in the circuit. Because the traditional electromagnetic flowmeter can not measure the low conductivity fluid, and sensitive to friction, adhesion effects, can only measure the fluid full pipe situation, etc., so it is necessary to change its structure, so that it can adapt to a more complex environment. Change the structure of the electromagnetic flowmeter is the main method of changing the number and location of electrodes, thus forming capacitance electromagnetic flowmeter, non-full electromagnetic flowmeter and so on.
Capacitance electromagnetic flowmeter fundamentally solves the problems of electrode surface attachment, corrosion, friction, etc. [4], and its electrode and the measured fluid are isolated by an insulating lining, or directly using an insulated measuring tube. The electrode is placed outside the measuring tube or embedded in the measuring tube.
The electrodes and the measured fluid
The electrodes and the measured fluid form a detection capacitance through the insulating tube, through which the flow signal is coupled. Its main structural form according to the installation position of the electrode can be divided into two types: electrode embedded in the insulating liner inside the measuring tube (embedded), the electrode affixed to the outside of the measuring tube (external paste type). Embedded structure is similar to the structure of ordinary electromagnetic flowmeter, while most of the external type is through the ceramic surface metallisation technology will be affixed to the electrode outside the measuring tube.
Hangzhou Economic Development Area，Hangzhou 310018，China
