Gas vortex flowmeter | Difference between turbine flowmeter and vortex flowmeter

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1. How to solve the problem of malfunction of vortex flowmeter

Common faults and maintenance methods of vortex flowmeter 1) It is widely known that vortex flowmeter is not suitable for installation in strong vibration situations, but in situations where the magnetic field changes frequently, the vortex flowmeter sensor will measure a signal output higher than normal. Practice has proven that in a field without gas flow, when the vortex flowmeter sensor is in a changing magnetic field, it will sense an error signal and output it at the moment of magnetic field change. When the change ends and the instrument is in a stable magnetic field, it will output a normal signal. 2) Due to the presence of numerous virtual impurities in coke oven gas, it is prone to crystallization and condensation at the sensing head, resulting in inaccurate measurement. When the temperature rises, impurities evaporate, sensitivity increases, and signal enhancement occurs; On the contrary, it decreases. This results in unstable data. 3) Coke oven gas has high temperature and humidity when it leaves the factory, so there will be moisture present during the gas transportation process. Gas flow drives water to fluctuate back and forth, thus forming pulsating flow. When the vortex flow sensor is in this fluid state, the output data fluctuates greatly. All rights reserved by Control Engineering Network, it cannot reflect the production status at all. 4) During the instrument wiring process, the pressure wire is not solid, resulting in intermittent signal transmission. 5) The grounding wire of the instrument does not meet the specification requirements, which causes 50Hz interference in the strong current to enter. When the normal signal is hig

her than 50Hz, a normal signal will be output, otherwise an incorrect signal will be output. Solution: 1) During the installation and connection of instruments, it is necessary to ensure the accuracy of every step, including on-site inspection before installation, instrument wiring during installation, system grounding, and other aspects. All rights reserved by the Control Engineering Network should be controlled to ensure the detection of real data and accurate output. 2) For the operating metering system, the methods of "dual track metering control engineering network copyright, comparison confirmation" and "substitution method" can be used to confirm and eliminate faults in the operating metering instruments. 3) Regularly clean the instrument as a whole, and if necessary, blow the sensing head of the instrument to avoid the condensation of impurities at the sensing head. Adding heat tracing devices in the measuring straight pipe section and instrument section during cold seasons is also beneficial in alleviating the condensation of impurities at the measuring instruments. 4) Regularly drain the pipeline, especially the water in front of the straight pipe section, and assign a dedicated person to discharge it regularly according to the specific situation, in order to minimize the water in the measuring pipe section and eliminate the pulsation in the fluid to the maximum extent possible. 5) Strengthen the management of data in the vortex flowmeter measurement system, set up a timed printing function, and analyze the operation of the instrument based on the printed data combined with production conditions. How to solve the problem of malfunction of vortex flowmeter

Gas vortex flowmeter | Difference between turbine flowmeter and vortex flowmeter

1. How to solve the problem of malfunction of vortex flowmeter

2. What is the working principle of vortex flowme

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