Advantages and disadvantages of top-mounted magnetic flap level gauge

During the commissioning of the top-mounted magnetic flap liquid level gauge, since the environmental conditions are still good (for example, there is no interference source), the liquid level gauge works normally, and the installation conditions are often neglected at this time (for example, the grounding is not very good). In this case, once the environmental conditions change, new sources of interference appear during operation (such as electric welding on the pipeline near the level gauge, etc.), which will interfere with the normal operation of the level gauge. Affects the accuracy of the level gauge measurement. Although the top-mounted magnetic flap level gauge is simple to operate and requires less maintenance, long-term use will still cause the electrodes to be dirty or worn. Therefore, to ensure the accuracy of the measurement, it is very necessary to regularly repair the top-mounted magnetic flap level gauge. For the top-mounted magnetic flap level gauge, the system must be shut down for each maintenance, and the liquid in the pipeline must be emptied before disassembly. If a failure occurs during abnormal maintenance, the disassembly and assembly of the top-mounted magnetic flap level gauge will have a great impact on the continuous production efficiency. Therefore, an isolation ball valve can be installed on the mounting seat to realize online plugging and unplugging under the condition of non-stop system operation to ensure continuous and stable operation of the system. The top-mounted magnetic flap level gauge has its good side and its bad side in operation. Today, this article will explain the advantages and disadvantages of the top-mounted magnetic flap level gauge in detail. 1. Advantages 1. When measuring the channel, it is a smooth straight tube with an unobstructed flow detection element, so it cannot be used for the medium of the measuring channel that should be blocked, measuring liquid-solid two-phase fluids containing solid particles or fibers, such as pulp , coal water slurry, ore slurry, mud and sewage, etc. 2. There is no pressure loss caused by the detected flow, and the resistance of the instrument is only the resistance along the pipeline of the same length. 3. It has a significant energy saving effect and is suitable for large-diameter water supply pipelines that require low resistance loss. 4. The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity. The sensor induced voltage signal has a linear relationship with the average flow rate, so the measurement accuracy is high. 5. There is no obstruction in the measurement pipeline, so there is no additional pressure loss; there are no moving parts in the measurement pipeline, so the sensor has a very long life. 6. Because the induced voltage signal is formed in the entire space full of magnetic field and is the average value on the pipeline surface, the straight pipe section required by the sensor is short, and the length is 5 times the pipe diameter. 7. In the sensor part of the magnetic flap level gauge, only the lining and the electrode are in contact with the liquid to be measured. As long as the electrode and the lining material are reasonably selected, they can be resistant to corrosion and wear. 8. Two-way measurement system, which can measure forward flow and reverse flow. 2. Disadvantages 1. It cannot measure liquids with very low conductivity, such as petroleum products and organic solvents. 2. It is impossible to measure gas, steam and liquid containing many larger bubbles. 3. Due to the limitation of lining materials and electrical insulation materials, it cannot be used for liquids at higher temperatures. More product choices: 3. Disadvantages and innovations Some material limitations and medium limitations make the level gauge unable to play its role well. The material structure can be improved so that it can reach the high temperature of the medium, or a heat sink can be installed. class to cool him down (Figure 1). so that the temperature is not as high as it used to be. figure 1
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