Rotating plate type magnetic flowmeter with anti-blocking structure

Abstract

The rotating plate type magnetic flow meter with the anti-blocking structure comprises a meter body, an inlet flange is fixedly installed on the left side of the meter body, and an outlet flange is fixedly installed on the right side of the meter body. According to the rotating plate type magnetic flowmeter with the anti-blocking structure, the N poles or S poles of the same poles of the first magnet and the second magnet are oppositely arranged, so that the higher the flow rate of a medium is, the closer the rotating plate to the magnetic base is, the repulsive force between the second magnet and the first magnet is relatively increased, and the lower the flow rate of the medium is, the smaller the repulsive force between the second magnet and the first magnet is; corresponding flow is calculated through the integrating instrument according to changes of magnetic force, a rotating plate arranged in the meter body rotates through changes of flow speed, a second magnet is installed on the rotating plate, a first magnet with the same magnetic pole is installed on the corresponding meter body, the distance between the magnets is changed through rotation of the rotating plate, and therefore changes of repulsive force are changed. The change of the magnetic force and the change of the flow are linear, and the flow is measured by measuring the change of the magnetic force.

Description

technical field [0001] The invention relates to the technical field of flowmeters, in particular to a rotary plate magnetic flowmeter with an anti-blocking structure. Background technique [0002] Flowmeter, defined by the National Committee for Scientific and Technical Terms as: an instrument that indicates the measured flow rate and (or) the total amount of fluid in a selected time interval. Flowmeters are divided into differential pressure flowmeters, rotameters, throttling flowmeters, slit flowmeters, volume flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. Specifically, it is a flowmeter with an anti-blocking structure rotary plate magnetic flowmeter. [0003] The current pressure flowmeter mostly uses the differential pressure flowmeter, which uses the principle of differential pressure generated by the internal structure to measure the flow, such as orifice flowmeter, V-cone flowmeter, Annubar flowmeter, porous balance flowmeter, etc. Another type o...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a rotary plate magnetic flowmeter with an anti-blocking structure, to solve the above-mentioned background technology, the current pressure flowmeter mostly uses the differential pressure flowmeter, which uses the principle of differential pressure generated by the internal structure For flow measurement, such as orifice flowmeter, V-cone flowmeter, Annubar flowmeter, porous balance flowmeter, etc. Another speed flowmeter that measures flow velocity converts the flow velocity of the medium into mechanical rotation , by rotating and sending out pulse signals to indirectly measure flow, such as turbine flowmeters, etc. However, there is no research on combining pressure and magnetic force to form a new flowmeter, and the medium often contains metal impurities, which disturb the magnetic flowmeter. A large amount of impurities are adsorbed on the magnet, which not only affects the measurement accuracy, but also causes blockage inside the magnetic flowmeter over time.

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