Application selection of electromagnetic flowmeter in food production industry
2022-07-26
Electromagnetic flowmeters are generally used in food industry flowmeters, which are mainly used to measure the volume flow of conductive liquids and slurries in closed pipelines, including corrosive liquids such as acids, alkalis, and salts.
Flowmeter performance for food industry applications should have the following characteristics:
1. The measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity, 2. There are no obstructed flow parts in the measuring tube
3. No pressure loss, low requirements for straight pipe sections,
4. The converter adopts a novel excitation method, with low power consumption and high zero-point stability.
5. The measurement flow range is large, and the flowmeter is a bidirectional measurement system, with forward total, reverse total and difference total, and should have multiple outputs.
When selecting an electromagnetic flowmeter, first confirm whether the measuring medium is conductive. The flow rate of the measured medium in conventional industrial electromagnetic flowmeters is preferably 2 to 4m/s. In special cases, the lower flow rate should not be less than 0.2m/s. Contains solid particles, and the common flow rate should be less than 3m/s to prevent excessive friction between the lining and the electrode. For viscous fluids, a larger flow rate helps to automatically eliminate the effect of viscous substances attached to the electrode, which is beneficial to improve the measurement accuracy. Spend. Generally, the nominal diameter of the process pipeline is selected. Of course, the flow range of the fluid in the pipeline should be considered at the same time. When the flow rate is too small or too large, the nominal diameter of the flowmeter should be selected with reference to the flow range under the premise of ensuring the measurement accuracy. Welcome to contact our professionals for more detailed selection support.
