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『Installation of water flow meter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Installation method of wedge flowmeter
The installation of wedge flowmeter needs to be combined with pipeline layout, fluid characteristics and equipment requirements. The specific method is as follows:
1. Installation direction and fluid flow direction: Wedge flowmeter is usually equipped with front and rear measuring pipes, supporting horizontal or vertical pipeline installation. Vertical installation requirements: If the sensor is installed in a vertical pipeline without a grip, the fluid must flow from top to bottom to avoid measurement deviation caused by incorrect fluid direction. Precautions for liquid measurement: When measuring liquids, it is necessary to ensure that the differential pressure transmitter can smoothly eliminate bubbles. If bubbles accumulate, it may cause zero drift of the instrument, affecting measurement accuracy. Figure: Schematic diagram of fluid direction and differential pressure transmitter position when installed vertically
2. Configuration of straight pipe section and pipeline requirements. Necessity of straight pipe section: Straight pipe sections need to be configured upstream and downstream of the sensor to eliminate the influence of eddy currents or uneven flow velocity distribution in the pipeline on measurement. Pipeline conditions: The inner wall of the straight pipe section should be smooth, clean, and free of attachments (such as rust, welding slag, etc.) to avoid impurities interfering with fluid flow. The length of the straight pipe section: The specific length needs to be determined based on the diameter of the pipeline, the size of the wedge-shaped element, and the process requirements (specific values are not provided in the reference information,
III. Differential pressure element and transmitter zeroing horizontal installation angle: When installing a horizontal pipeline, the wedge-shaped differential pressure element needs to form a 90 degree angle with the centerline of the pipeline to ensure accurate transmission of differential pressure signals. Vertical installation zeroing: During vertical installation, there may be slight static pressure effects between the pressure points, and the differential pressure transmitter needs to be zeroed after installation to eliminate static pressure errors. Zero adjustment method: Close the pipeline valve to make the fluid static, and use the transmitters zero adjustment function to reset the measured value to zero, ensuring the accuracy of subsequent measurement benchmarks. 4. Other precautions to avoid vibration interference: The installation position should be far away from the vibration source (such as pumps, compressors, etc.) to prevent vibration from causing measurement delays and signal fluctuations. Temperature and pressure adaptation: Ensure that the working temperature and pressure range of the flowmeter meet the process requirements, and avoid exceeding the limit of use. Regular maintenance: After installation, it is necessary to regularly check the cleanliness of the straight pipe section, the status of the differential pressure element, and the zero point of the transmitter to ensure long-term stability. By standardizing the installation direction, configuring straight pipe sections, adjusting the angle of differential pressure components, and zeroing the