The working principle and advantages and disadvantages of the magnetic flap level gauge

The magnetic flap level gauge is a very common instrument for measuring liquid level, so what is the working principle of the magnetic flap level gauge? Please see the following one. The working principle of the magnetic flap level gauge The measurement principle of the magnetic flap level gauge is mainly based on the principle of the connector, the principle of buoyancy and the magnetic coupling effect. 1. The principle of buoyancy (Archimedes' principle) Since an object immersed in a static fluid will experience an upward buoyancy force, the buoyancy is equal to the weight of the fluid displaced by the object. This principle is also known as Archimedes' principle. 2. The principle of the connector The magnetic flap liquid level gauge has a cavity (also known as the main tube or buoy) that accommodates the floating ball, which forms a connector with the container through a flange or other interface, so that the The liquid level is the same height as the liquid level in the container, and the floating ball in the cavity rises and falls with the rise and fall of the liquid level. 3. Magnetic coupling In the actual work of the magnetic flap level gauge, the rise and fall of the magnetic float in the buoy cannot be observed by the outside world. However, when a magnetic flip indicator is installed outside the float, the flip will turn 180° due to the effect of the magnetism of the magnetic steel in the float on the external magnetic flip. The effect of the film is the result of the repulsion of the same sex and the attraction of the opposite poles. Using this principle, the outside world can clearly identify the actual position of the liquid level from the change of the color of the flip sheet. Because the magnetic flap level gauge can work safely and reliably in various harsh environments such as low temperature, high temperature, high pressure, and strong corrosion, this makes the magnetic flap level gauge widely used in industrial production. The magnetic flap liquid level gauge is used in conjunction with the upper and lower limit magnetic switches and the reed switch remote transmitter, and can also realize remote control, indication and recording of the liquid level, and is suitable for the liquid level measurement of tanks, tanks and spherical containers. 2. Advantages and disadvantages of magnetic replica level gauge Advantages: The measuring buoy is a smooth straight pipe body, which is not easy to block for liquids with particles, viscosity and impurities (such as pulp, mud, sewage, etc.); it can work without wiring, saving energy Environmental protection; the measured volume flow is very little affected by changes in liquid density, viscosity, temperature, pressure and conductivity; the reading is intuitive and fast, and can reflect the liquid level in real time; it can be matched with remote transmitters and magnetic switches. Realize the liquid level remote monitoring and switch quantity control functions. Disadvantages: There are certain restrictions on the size of the range. If the range is too large to be transported, it needs to be segmented to facilitate transportation and installation; it cannot measure gas, steam and liquids containing large bubbles. Measuring the liquid level requires pre-installation or open-tank installation, and it is impossible to measure the liquid level of closed containers.

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