Vortex flowmeter is a commonly used flowmeter product, mainly for liquid, steam, gas, etc., the product has the advantages of stable performance, flexible use, high reliability, easy maintenance and so on. Vortex flowmeter will produce certain fault problems during use:
1. The gas vortex flowmeter is not suitable for installation in the case of strong vibration is widely known by users, but in the case of frequent changes in the magnetic field, the vortex flow sensor will measure higher than normal signal output. Practice has proved that in a field without gas flow, when the vortex flow sensor is in a changing magnetic field at the moment when the magnetic field changes, the gas vortex flow meter sensor will sense an error signal and output it. When the change ends and the meter is in a stable magnetic field, the meter will output a normal signal.
2. Due to the coke oven gas impurities, easy crystallization, impurities condense in the sensor head, resulting in mismeasurement. When the temperature rises, the impurities volatilize, the sensitivity increases, and the signal is enhanced. On the contrary, it decreases. Thus, the data is unstable.
3. The instrument wiring process is not solid, resulting in intermittent signals in the transmission process.
4. The instrument grounding wire does not meet the requirements of the specification, so that the 50Hz interference in the strong current enters, when the normal signal is higher than 50Hz, the normal signal is output, and the wrong signal will be output.
Coke oven gas has high temperature and high humidity when leaving the factory, so there will be moisture in the gas transmission process. The gas flow drives the water to fluctuate back and forth, thus forming a pulsating flow. When the vortex flow sensor is in this fluid state, the output data is large and small. All rights reserved. It cannot reflect the production status.
