Installation of electromagnetic pipe flow meter, no longer worry about sudden changes in flow rate
Installation of electromagnetic pipe flow meter, no longer worry about sudden changes in flow rate
View MoreEnsure that the normal operation of the steam ammonia wastewater flowmeter and the necessary conditions for measuring accuracy of the measured fluid medium must be electrically conductive, measurable minimum conductivity ≥ 5μs/cm; measured fluid medium must be filled with pipeline to ensure the accuracy of the measurement.
一、Evaporated ammonia wastewater flowmeter measurement system must be well grounded to ensure normal and reliable work; evaporated ammonia wastewater flowmeter should meet the requirements of its front and back of the length of the straight pipe, in order to ensure that the measurement of accuracy and stability; in the vicinity of the evaporated ammonia wastewater flowmeter, should be avoided to interfere with the strong electromagnetic field.
二、Determination of the type of flow meter for evaporated ammonia wastewater
The flowmeter for evaporating ammonia wastewater is capable of continuously measuring a wide range of flow rates, and the measurement range can be adjusted arbitrarily within the specified flow range of 0.5 to 15m/s (1.6 to 49ft/s). In general, the choice of flowmeter calibre is equal to the calibre of the process pipe, and easy to install, no pressure loss. In some working conditions (such as fluid media may cause deposits in the sensor, and low flow rate), in order to make the instrument work in the appropriate range of flow rate, in the process flow rate is more stable, and allows a certain pressure loss, you can choose the instrument calibre is smaller than the process pipe calibre, before and after the instrument with a reducer, so that the instrument within the local flow rate increase. For large diameter process pipeline, in the pipeline flow rate is low and process flow rate is more stable, you can choose a smaller calibre instrument, before and after the instrument with a reducer, on the one hand, can reduce the cost of the instrument, on the other hand, can also make the instrument run in the flow rate of a better range of linear. In order to ensure the accuracy of measurement, the central cone angle of the reducer should not be greater than 15 °, and the upstream side of the reducer joint should be at least 5 times the diameter of the process pipe straight section.
四、Recommended
Flow rate from the accuracy, economy and durability considerations, the recommended use of the flow rate range between 1 ~ 5m / s (3.3 ~ 16ft / s). In this range, the flowmeter measurement accuracy, good linearity, power loss is smaller, the fluid medium on the flowmeter liner and electrode wear and tear is also smaller. For fluid media containing solid particles, the recommended flow rate range is between 1 and 3 m/s (3.3 to 10 ft/s). This selection helps to avoid excessive wear on the liner and electrodes of the ammonia vapour flowmeter caused by suspended solid particles due to high flow velocities. For fluid media in pipelines that may cause deposits, the recommended flow rate range is between 2 and 5 m/s (6.5 and 16 ft/s). Higher flow rates make it easier to eliminate excessive deposits. Mounting the flow meter vertically is easy to eliminate excessive deposits.
The magnetic inductive flowmeter industry, these are successful cases with comparable and reference value.
Installation of electromagnetic pipe flow meter, no longer worry about sudden changes in flow rate
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View MoreHangzhou Economic Development Area,Hangzhou 310018,China