Vortex flow meter scale using unstable how should solve

Abstract: the scale vortex flowmeter using unstable how to solve the information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Vortex flowmeter is an extremely versatile flow meter, can be used in almost all gas, liquid and steam flowmeter measurement and control, it is mainly used for industrial piping medium fluid flow measurement, such as gas, liquid and vapor, and other media. Its characteristics. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a vortex flow meter scale how to solve the article details when using instability. Vortex flowmeter is an extremely versatile flow meter, can be used in almost all gas, liquid and steam flowmeter measurement and control, it is mainly used for industrial piping medium fluid flow measurement, such as gas, liquid and vapor, and other media. Is characterized by small pressure loss, wide range, high precision, working condition of the measurement volume flow is almost not affected by the fluid density, the influence of the parameters such as pressure, temperature, viscosity. No moving mechanical parts, so high reliability, small amount of maintenance. Instrument parameters can be long-term stability, also has a digital pulse signal output, easy and computer digital systems, such as a more advanced and ideal flow meter. In general, after exclusion of flowmeter itself quality problem, most are the problems of installation, for common speed meter, are possible: ( 1) 。 Straight pipe flowmeter before isn't long enough ( Generally is 10 times the pipe diameter) , can't bend, by-pass pipe or other impurities, such as pieces of choke. （ 2) 。 Flow meter is installed in regulating valve upstream. （ 3) 。 Is there a vibration at the scene. （ 4) 。 The measured value of the flow is too small, short of flowmeter. The following flow meter manufacturer for a specific example of vortex flowmeter, vortex flowmeter in coke oven gas measurement is not stable, the output signal is not stable, the reasons are the following: ( 1) , vortex flowmeter is not suitable for installation in strong vibration occasions is widely known as carriers, but in the case of magnetic field changes frequently, vortex flow sensor can measure the signal output of higher than normal. Practice has proved that in the absence of the gas flow field, when the vortex flow sensor in the change of magnetic field at the instant of the magnetic field changes, vortex flow sensor can sense if a wrong signal and output, when change over, instrument in a steady magnetic field, the instrument will output a normal signal. （ 2) , coke oven gas because of the factory when the temperature is high, the humidity is big, so water will exist in the process of gas transmission. Gas flow reciprocating drive moisture fluctuations, thus forming a pulsating flow. Vortex flow sensor output data in this fluid state large and small, cannot reflect the status of production. （ 3) Line pressing false, instrument wiring process, resulting in intermittent transmission in the process of signal. （ 4) , instrument grounding line do not conform to the requirements of the specification, so that the high voltage of 50 hz interference, when the normal signals is higher than the normal output at 50 hz, the opposite will output error signals. （ 5) , due to the impurities of coke oven gas, easy to crystallization, condensation of impurities in the sensing head, causing metering phrase. At higher temperatures, volatile impurities, increased sensitivity, signal enhancement; Opposite to reduce. Resulting in the data is not stable. Vortex street flowmeter measurement solutions: (coke oven gas instability 1) , in the process of instrument installation, connection, should ensure that every link of the accurate, including before installation on the investigation to the scene, the installation process instrumentation wiring, system grounding line, etc. , to ensure that the real data and be able to accurately detected output. （ 2) , measuring system can be used for operation & other; Dual track measurement, compared to confirm & throughout; Methods, as well as & other; Alternative method & throughout; To identify and eliminate running measuring instrument malfunction. （ 3) , pressure transmitter, drainage pipe on a regular basis, especially the straight pipe in front of the water, according to the specific circumstances set specialist emissions on a regular basis. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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