Special application of electronic weighing module in production process
At present, the metering devices used for liquid storage and irrigation materials in the chemical industry are mainly flow meters, metering pumps, liquid level instruments and other products. Among them, the flowmeter has the characteristics of high measurement accuracy, convenient installation and debugging, etc., and is generally installed in the import and export pipelines for storage and irrigation materials. It is used to measure the instantaneous flow and cumulative flow of pipeline fluid, mainly used in flow measurement and control systems, but its disadvantage is that the measurement accuracy is greatly affected by installation conditions and temperature changes, and when calculating the weight of materials in water storage and irrigation, it is necessary to through import and export. Flow meters can only be calculated when connected to a totalizer or DCS system, and their accuracy is affected by various factors. At present, electromagnetic flowmeters, mass flowmeters, ultrasonic flowmeters and other products are widely used products in the market, but the products are expensive. It is difficult to calibrate and rarely used by the average business. Metering pumps are generally used to measure the outflow of storage and irrigation materials, but they cannot measure the storage weight of storage and irrigation materials and are very expensive, which limits the use of the production process. ----Automatic weighing machine manufacturers In the early days, automatic checkweighers were also used to measure the weight of storage and irrigation materials, which were characterized by high measurement accuracy, which was not affected by temperature changes. According to the principle of static pressure measurement, the cross-sectional area of u200bu200bthe storage tank is measured by measuring the static pressure at the bottom of the storage tank. When the storage tank is installed in advance, the material weight is calculated according to the formula Pu003dF/S, and the requirements for the pressure transmitter are very high. , the installation is more complicated and more difficult is the strict requirements on the processing accuracy of the filling body and the cross-sectional area of u200bu200bthe material? It is required that the column be kept at the same level. If there is any deviation, it will directly affect the measurement accuracy, only for open containers. Rarely used now. In recent years, measurement using weigh modules as storage and irrigation materials has been widely adopted by businesses. It is characterized by easy installation and low price, and is not limited by the site and the shape of water storage and irrigation. It has high measurement accuracy and is easy to calibrate. It can be used for storage and irrigation. It is used for the measurement of materials entering and leaving the warehouse, and can also be used for process control. Depending on the shape of the tank and how it is installed, 3 or 4 weigh modules can generally be selected. It is especially suitable for quantitative feeding systems.
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