The use of turbine flowmeter

Use of turbine flowmeters. Turbine flowmeters are also widely used in the flow measurement of petroleum products, mainly because petroleum itself is a good lubricant, which can well lubricate the shaft and bearing during the flow measurement process, which is conducive to the long-term reliable operation of the instrument . Turbine flowmeters with specially designed shafts and bearings can be used successfully even in the difficult flow measurement of LPG.&-Advantages, high precision, for liquids, domestic products can achieve ±'^〜^). 5)^11, some foreign products can reach ±0, 15^11. , the repeatability is good, and the short-term repeatability can reach 0.055^. If it is calibrated frequently, a very high accuracy can be obtained, and ideal results can be obtained in the quantitative delivery and quantitative barreling operations. , the output pulse frequency signal, in the connection with the batch controller and the flow display meter for signal processing, it can basically not increase the error. , wide range, maximum and minimum flow ratio up to 6: 1〜10:1, even up to 40:1 for medium and large diameters. , the inertia is small, the response is fast, and the time constant is 1〜50X113, the error caused by the pulsating flow with a low rate of change can be ignored '21, the structure is simple, compact, light, easy to install and maintain, and the flow capacity is large. If a failure occurs, it will not affect the transportation of liquid in the pipeline. High pressure resistance, It can be used for the measurement of high-pressure fluid. Corrosion-resistant, the sensor is made of corrosion-resistant materials, which can resist the corrosion of general corrosive media. Disadvantages, the friction between the turbine bearing and the shaft causes wear, which changes the accuracy of the instrument, so it is used for trade settlement The meters must be calibrated regularly. Now some products use gemstone bearings and nickel-based tungsten carbide shafts, so that the wear resistance is fundamentally improved, and the accuracy can be maintained at 3〜4 years unchanged. Generally, turbine flowmeters are not suitable for high-viscosity fluids. As the viscosity increases, the lower limit of flowmeter measurement increases, the range decreases, and the linearity becomes worse. , The cleanliness of the fluid is required to be high, and a filter should be installed in front of the flowmeter. The mesh number of the filter mesh is related to the caliber of the instrument. The mesh number of the small diameter is more, and the mesh number of the large diameter is less.

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Our company specializes in manufacturing mass flow meter mainly electromagnetic flow meter slurry.

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