Large-diameter electromagnetic flowmeter selection and installation
Smart electromagnetic flowmeters are mainly used to measure the volumetric flow in conductive liquids and slurries in closed pipes. Such as water, sewage, mud, pulp, all kinds of acid, alkali, salt solution, food slurry, etc., smart electromagnetic flowmeter is widely used in petroleum, chemical, metallurgy, textile, food, pharmaceutical, paper and other industries and environmental protection, municipal management, water conservancy Construction and other fields. Resistance Bands,Exercise Bands,Workout Bands,Fitness Resistance Bands,custom printed resistance bands Nantong Yuan International Trade Co.,Ltd , https://www.ntyuantianwey.com
The correct choice of large-caliber electromagnetic flowmeter determines the accuracy of the measurement. Therefore, what type of large-caliber electromagnetic flowmeter should be selected according to the physical properties and chemical properties of the measured fluid medium, so that the diameter of the large-caliber electromagnetic flowmeter can be determined. The flow range, lining material, electrode material, and output current can all be adapted to the nature and properties of the fluid being measured and the flow requirements.
From the working principle of the large-diameter electromagnetic flowmeter, we can choose a large-diameter electromagnetic flowmeter to measure the flow of fluid must be conductive, strictly speaking, in addition to high-temperature fluid, as long as the conductivity of any fluid greater than 5μ/cm are selected The large-diameter electromagnetic flowmeter measures the flow rate, so non-conductive gases, steam, oils, acetone, etc. cannot use large-diameter electromagnetic flowmeters to measure flow.
Determination of sensor diameter The flowmeter uses a flow rate in the range of 0.3-15m/s. At this time, the diameter of the flowmeter can be selected in accordance with the user's pipe diameter. When the flow rate is lower than 0.3m/s, the flow rate is locally increased at the meter part, and the tube shrinkage method is adopted:
The next step is an integrated or separate selection. The integrated type is selected when the on-site environment is better, that is, the sensor and the converter are assembled into one. Separation type is where the sensor and the converter are installed separately at different locations.
After the correct selection of the model, proper installation is also important in order to make the large-diameter electromagnetic flowmeter stable. Try to avoid ferromagnetic objects and equipment with specific strong electromagnetic fields (such as large motors, large transformers, etc.) to prevent the magnetic field from affecting the sensor's working magnetic field and flow information; it should be installed in a dry and ventilated place, not in the wet, easy to collect water. Local installation; should try to avoid the sun and rain, to avoid the ambient temperature is higher than 45 °C and relative humidity greater than 95%; choose convenient maintenance, convenient place for activities; large-caliber electromagnetic flowmeter should be installed in the pump back end, must not be pumping Suction side installation; valves should be installed on the downstream side of the flowmeter.