Sudden fluctuations in cell voltage
Thread Content
This post was last edited by sunjl1981 on 2013-1-6 at 22:20. The forced circulation electrochemical cell used in Beihua Machinery & Electronics has a service life of around 10 years; during normal operation, the voltage of the cell suddenly rises by 2–3V, and the cell temperature also increases accordingly. After about 2–3 minutes, the voltage drops suddenly again. There are no abnormalities in terms of flow rate, cell pressure, electrolyte concentration, saltwater quality, etc. Dear colleagues, what is the reason for this? What factors cause the voltage to rise suddenly and then drop suddenly? -
As long as there is no tripping due to external voltage fluctuations or internal rectification fluctuations, that’s fine.
Is there a problem with the rectifier? Did the increase in tank temperature cause the voltage to rise? Has there been any change in the vapor pressure?
This post was last edited by 181128425 on 2010-11-9 at 16:01. 1. Is there any problem with the rectifier? 2. Are there any sudden changes in current? 3. Are there any issues with the electrolytic cells? Is the liquid output from the anode and cathode outlets even, and is there any discoloration? Are there any fluctuations in the EDI system? 4. Are the data readings normal?
This post was last edited by 181128425 on 2010-11-9 at 16:01. The pressure difference suddenly increased; could it be fluctuations in this pressure difference that caused the membrane to stick to the cathode? We have encountered this situation before, and it returned to normal after adjusting the circulation rate. The pressure difference was controlled at a level higher than usual, but it reverted to normal after some time.