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Smart flow meter suppliers: Attention should be paid to cleaning before installing smart flow meters

2018-04-23View Original

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Intelligent flow meters are widely used in industries such as petroleum, chemicals, metallurgy, textiles, food processing, pharmaceuticals, and papermaking, as well as in fields like environmental protection, municipal management, and water conservancy construction. They are primarily used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. The main components of such sensors include a measurement tube, electrodes, an excitation coil, an iron core, and a yoke housing. Smart flow meters are primarily used for measuring the flow rate of fluids in industrial pipelines, including various media such as gases, liquids, and vapors. Its features include low pressure loss, a wide measurement range, and high precision; when measuring the volumetric flow rate under operating conditions, it is virtually unaffected by parameters such as fluid density, pressure, temperature, and viscosity. There are no moving mechanical parts, thus it offers high reliability and requires minimal maintenance. The instrument parameters can remain stable over the long term. The intelligent gas flow meter uses piezoelectric stress sensors, offering high reliability, and can operate within a temperature range of -20°C to +250°C. It outputs both analog standard signals and digital pulse signals, making it easy to integrate with digital systems such as computers; it is a relatively advanced and ideal flow meter. Requirements for grounding of smart flowmeters: Smart flowmeters must be reliably grounded and must not share the ground wire with high-voltage electrical systems.    The selection is made within the specified flow range to prevent overspeed operation, thereby ensuring ideal accuracy and a normal service life.    Before installing an intelligent flow meter, it is necessary to clean the pipes of any debris such as fragments, welding slag, stones, dust, etc. It is recommended to install a filter with 5-micron pore size upstream to prevent liquid droplets and sand particles from entering. When putting an intelligent flow meter into operation, the front valve should be opened slowly first, followed by the rear valve, to prevent damage to the turbine caused by sudden airflow shock. Lubricant should be added according to the instructions on the sign, and the frequency of refilling depends on the cleanliness of the air; usually, it is done 2-3 times per year. The turbine may overspeed due to pressure testing, pipeline purging, or venting, and it can also be damaged when operating in reverse flow, all of which can lead to damage to the flow meter.
Reply #22020-04-21
Learning*, thanks to the original poster for sharing.

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