3 methods of cleaning electromagnetic flow meter electrodes
Electromagnetic flowmeter in the industry has achieved good results, then as the core accessories of electromagnetic flowmeter – electrode, electrode is contact with the measured medium more accessories, then the cleaning details of the electrode is a crucial point, of course, also pay attention to a certain method.
First: mechanical cleaning method, this method is to install a special kind of machinery on the meter electrode, through this different mechanical structure can remove the debris above the electrode is very clean, fundamentally clean the dirt above the electrode. A mechanical seal is used between the thin shaft and the hollow electrode to prevent the outflow of the medium, and a mechanical scraper is formed.
Second: ultrasonic cleaning method, ultrasonic cleaning method is to add a certain voltage generated by the sound wave to the electrode, so that the ultrasonic energy is concentrated, so as to use the ultrasonic ability to break the dirt to achieve the purpose of cleaning.
Third: electrochemical method, the electrode in the electrolyte fluid there is an electrochemical phenomenon, according to the basic principle of electrochemistry, the electric field generated by the electrode and the fluid interface found material molecules, atoms, ions, etc., on the surface of the electrode with the same charge, when the residual charge density is slightly larger, the electrostatic repulsion is greater than the adsorption force, the anion is quickly desorbed, this is the electrochemical method
