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1. When installing and using flow meters, these matters must be paid attention to!
Precautions for installation and use of flow meters: Flow meters are essential instruments for measuring liquid and gas flow rates, and their correct installation method is crucial to ensure measurement accuracy and stable operation of the instrument.. The following are some common precautions to be taken when installing and using flow meters:
1. Selection of installation location for electromagnetic flow meters: Avoid ferromagnetic objects and equipment with strong electromagnetic fields to prevent magnetic field interference with the working magnetic field and flow signal of the sensor. Flow influence: The steady-state eddy current in the measurement area can affect the stability and accuracy of the measurement. The flow velocity distribution can be stabilized by increasing the length of the front and rear straight pipe sections, using flow stabilizers, or reducing the cross-sectional area of the measurement points. Installation direction: The flowmeter can be installed horizontally and vertically, but it should be ensured to avoid the influence of sediment and bubbles on the measuring electrode, and the electrode axis should be kept horizontal. When installed vertically, the fluid should flow from bottom to top. Avoid bubble accumulation: The sensor should not be installed at the highest position of the pipeline to prevent bubble accumulation from affecting the measurement. Full tube measurement: Ensure that the flow sensor is filled with the measured fluid in the pipeline during measurement and that there is no non full tube state. If the pipeline is not full or the outlet is empty, the sensor should be installed
2. Requirements for straight pipe section of vortex flowmeter: There should be longer straight pipe sections on the upstream and downstream sides to ensure accurate measurement.
. Installation location: When measuring gas flow, if the measured gas contains a small amount of liquid, the flowmeter should be installed at a higher position in the pipeline; When measuring liquids, if the measured liquid contains a small amount of gas, the flowmeter should be installed at a lower position in the pipeline. 3. External interference of turbine flowmeter: Keep away from external electric and magnetic fields, and take shielding measures if necessary. Installation direction: It can be installed horizontally or vertically, and the fluid direction must be upward when installed vertically. The liquid should fill the pipeline without any bubbles. During installation, the direction of liquid flow should be consistent with the direction indicated by the arrow on the sensor housing. Full pipe measurement: It is necessary to fill the pipeline with fluid to ensure accurate measurement. Requirements for straight pipe section: There should be at least 10 times the nominal diameter length of the straight pipe section at the upstream end, and no less than 5 times the nominal diameter of the straight pipe section at the downstream end. The inner wall should be smooth and clean. Avoid bubbles: During installation, bubbles should be avoided from being generated
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