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Scale vortex precession flowmeter measurement gas technology requirements and matters needing attention

by:Sincerity     2021-01-27
Abstract: the scale vortex precession flowmeter measurement of natural gas technology requirements and matters needing attention of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. The air flow to be measured a, vortex precession flowmeter condition requirements 1, for single-phase gas to be tested, continuously flowing through a pipe of circular pipe flow. Before 2, gas flows through the flowmeter, the flow rate must be parallel to the pipe axis, can not have vortex flow. 3, air flow should be. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale vortex precession flowmeter measurement of natural gas technology requirements and matters needing attention the article details. The air flow to be measured a, vortex precession flowmeter condition requirements 1, for single-phase gas to be tested, continuously flowing through a pipe of circular pipe flow. Before 2, gas flows through the flowmeter, the flow rate must be parallel to the pipe axis, can not have vortex flow. 3, should be a subsonic airflow, and the pulse, the flow changes over time slowly. 2, installation requirements of vortex precession flowmeter, vortex precession flowmeter to process installation and use of the special requirements of environment is not too much, but any kind of flow measurement instrument has such a common, as far as possible to avoid vibration and high temperature environment as flow interference elements ( Such as compressor, separator, pressure regulating valve, reducer and pipe, elbow, etc. ) And keep straight pipe before and after the meter wall smooth and flat, ensure clean measured medium of single-phase fluid, etc. Three, vortex precession flowmeter installation using items should be paid attention to in the vortex precession flowmeter has no mechanical moving parts, small size, corrosion resistance, stable performance; Can be directly display medium work pressure, temperature, flow rate of gas as well as standard conditions; The advantages of small span a wide range, the measurement error, has been widely used in oil and gas well production measurement and gas sales. In years of field application, we think the flowmeter zui suitable for relatively clean dry gas metering, gradually become the first measurement instrument of small and medium-sized gas metering. To guarantee the accuracy of the vortex precession flowmeter measurement, reduce the measuring error, please note: 1, the selection of reasonable don't make the actual QVmin zui small flow meter below the selected through runoff flow range limit. 2, installation and correct flow upstream of straight pipe should be at least 10 d length measurement. Straight pipe inner surface should be smooth, cannot have the steps, more smooth connecting flange weld, flange gasket can't into the pipe. Don't put the wrong installation direction of the flow meter. Tests showed that: all the unreasonable installation, will lead to the flowmeter measurement value is low. 3, away from the source of shocks, or install piers in upstream or downstream flow meter, in order to avoid the influence of the pipeline vibration. Avoid strong magnetic field disturbance to the flow meter chip. 4, temperament cannot appear relatively clean especially gas liquid two phase flow; Temperament is dirty, should clean instant flow meter. 5, and reduce the influence of flow pulsation can be installed in front of the flowmeter buffer tank, or extended length of straight pipe upstream of the flow meter, computation. 6, metrological verification was carried out on the vortex precession flowmeter in time, ensure accurate and reliable value. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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