What are the reasons and solutions for the unstable output signal of the vortex flowmeter when measuring coke oven gas

Abstract: The reasons and solutions for the unstable output signal of the vortex flowmeter when measuring coke oven gas are provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Vortex flowmeters are also called vortex flowmeters or Karman vortex flowmeters. The products are carefully designed on the basis of comprehensively absorbing advanced technologies from developed countries and summarizing years of research and production experience, realizing product intelligence, standardization, serialization and generalization. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the reasons for the unstable output signal of the vortex flowmeter when measuring coke oven gas and the solutions. Vortex flowmeters are also called vortex flowmeters or Karman vortex flowmeters. The products are carefully designed on the basis of comprehensively absorbing advanced technology from developed countries and summarizing years of research and production experience, realizing product intelligence, standardization, serialization, generalization, production mold, and ensuring the aesthetics of product quality. The product has the characteristics of advanced circuit, low power consumption, wide range ratio, simple structure, small resistance loss, sturdy and durable, wide application, long service life, stable operation, and easy installation and debugging. When the vortex flowmeter measures coke oven gas, the reasons for the instability of the output signal are as follows: 1. The vortex flowmeter is not suitable for installation in strong vibration occasions, which is widely known by users, but in occasions where the magnetic field changes frequently , the vortex flow sensor will detect a signal output higher than the normal value. 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 vortex flow sensor will sense an error signal and output, when the change is over, the instrument is in a stable magnetic field. , the meter will output a normal signal. 2. The coke oven gas has high temperature and high humidity when it leaves the factory, so there will be moisture in the gas transportation 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 fluctuates, which cannot reflect the production status at all. 3. Because coke oven gas has many impurities, it is easy to crystallize, and the impurities condense on the sensing head, resulting in measurement inaccuracy. When the temperature increases, the impurities volatilize, the sensitivity increases, and the signal increases; on the contrary, it decreases. This results in data instability. 4. The pressure line is not solid during the wiring process of the instrument, which causes the intermittent signal during the transmission process. 5. The ground wire of the instrument 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, otherwise, the wrong signal is output. Solution: 1. In the process of instrument installation and connection, it is necessary to ensure that each link is accurate, including the inspection of the site before installation, instrument wiring during installation, system grounding, etc., so as to ensure that the real data is detected and can output accurately. 2. For the measurement system in operation, it can be used“Compare and confirm”method, and“Alternative method”Confirm and eliminate the faults of the measuring instruments in operation. 3. Regularly clean the instrument as a whole, and if necessary, purge the sensor head part of the instrument to avoid the condensation of impurities at the sensor head. In cold seasons, adding heat tracing devices in the straight pipe section of the metering and the instrument part is also beneficial to relieve the condensation of impurities at the metering instrument. 4. Drain the pipeline regularly. The water in the vortex flowmeter, especially before the straight pipe section, should be regularly discharged by a special person according to the specific situation, so as to reduce the water in the metering pipe section as much as possible and eliminate the pulsation in the fluid to the maximum extent. 5. Strengthen the management of the data of the metering system, set up the function of timing printing, and analyze the operation of the instrument according to the printing data combined with the production status. Haines Automation Instrumentation is a professional manufacturer of electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, magnetic flap level gauges, thermocouples, thermal resistances, bimetal thermometers and pressure gauges of various specifications, etc., as well as the production of various As a manufacturer of non-standard flowmeters, the company has advanced management level, modern professional production equipment, and accurate calibration devices. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'What are the reasons and solutions for the unstable output signal of the vortex flowmeter when measuring coke oven gas'

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