Deviation of electrolytic current and cell voltage
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During the production process, the cell voltages of the 4 electrolyzers are the same, but the operating currents of each electrolyzer vary greatly. The concentration of the brackish water exiting each tank is fairly consistent; I seek expert advice
The operating current of each electrolyzer varies significantly, while the concentration of the brine output from each electrolyzer remains relatively constant – is the flow rate of the brine fed into the electrolyzers also quite different?
During the production process, the cell voltages of the 4 electrolyzers are the same, but the operating currents of each electrolyzer vary greatly. ------How much is the difference in current? How is the leakage of the ion membrane? It is necessary to conduct a comprehensive analysis to determine whether the service life of each electrolyzer varies, and whether there is any damage to the coating. What you’re describing is extremely unclear and hard to understand; logically, it shouldn’t be possible for there to be such a large difference in current while the slot voltage remains the same.
Are the operation times of each cell the same? By setting the brine flow rate based on the operating current, the concentration of the fresh brine exiting the tank will certainly not vary much.
The current differences are significant; if the inlet concentrations are the same, the outlet concentrations will definitely be different. Is your sink equipped with voltage regulation control? Is such a technology available? Then the inlet flow rate needs to be adjusted according to the outlet concentration; otherwise, the situation will get worse and worse. Since the concentration of the brackish water varies, the concentration of alkali must also differ significantly
4 chlorine engineering electrolyzers: #1 at 17.5 KA, #2 at 16.8 KA, #3 at 16.8 KA, and #4 at 15.2 KA. The cell voltage is generally around 359, with fluctuations of up to 0.2. Both the electrolyzer and the membrane have been in operation for 1 year, with no membrane leakage or coating peeling observed
In other words, it’s impossible to determine whether the current is accurate; ultimately, operation can only be controlled based on the slot voltage
Buy a high-current current transformer; it’s not expensive. Measure the actual current to see what it is. The current value you provided is likely the one displayed on the computer, and it may differ significantly from the actual current during operation. This situation is quite common in practical applications. Sometimes it can be seen from the electrical efficiency; I have encountered cases where, even after a year of operation, the electrical efficiency remained above 100%.
It’s probably a problem with the current display; this type of voltage regulation is not beneficial for the battery cells, especially when the conditions of the cells change over time. For the rectification part, it’s necessary to check for hardware issues with the current measurement.
Thank you, we are investigating the reason for the current display issue
Once the issue is found, please reply to this post.