Is it normal to have a low current and high temperature in the electrolyzer?

It indicates that there is a problem with your electrolyzer (the membrane or electrodes)!

So how can we make further judgments?

Please specify the details, such as the type of cell, cell temperature, cell voltage, chlorine purity, outlet acidity, and other relevant parameters

Why is that? For example, 1) if all 3 tanks have new tanks and new membranes and are operated simultaneously, with identical parameters such as current, tank temperature, and acid addition, it is abnormal for such a situation to occur. There could be several reasons for this. It’s possible that there is a problem with the DC current transformer in this slot; the actual input current is high, but the value displayed on the meter remains the same, which results in high voltage and high slot temperature (you didn’t specify by how much it’s high, and if it’s a significant difference, then my analysis might hold true). Perhaps there is a problem with the unit cell of this slot; high voltage results in more heat generation, and thus a higher slot temperature. It is also possible that the voltage, or the temperature reading from the thermometer for the tank temperature, is inaccurate. 2) If the 3 cells are old electrolyzers that have been in use for some time and this problem occurs, then you should analyze and compare whether the membranes were installed at the same time, as well as whether there have been any issues with the electrolyzers. In response to your question, it is necessary to include all the specified conditions, including some operational or measurement data. If you check the instruments, operating parameters, etc. and everything seems fine, then the most likely issue lies with the electrolyzer or the membrane; it’s easier to analyze the problem from that perspective. Replace it with a spare slot from another slot; if the voltage drops significantly, it indicates that there is a problem with that slot. If the voltage remains unchanged, then replace it with a new membrane; if the voltage drops in that case, it means there is a problem with the membrane. So, address it based on the reasons. :P

A high voltage, low current, and high slot temperature indicate that a significant amount of electrical energy is being converted into heat energy; if the temperature sensing elements are functioning properly, then there is likely a problem with the membrane or electrodes.

1. First, verify the instruments — ammeter, thermometer； 2. You must compare it with the other two slots – compare current, voltage, and temperature to see if the situation is indeed true ； 3. After making the comparison, see how much the current difference is – is it serious? ； 4. Generally, abnormalities in the membrane or cell tank cause such issues. 5. If the abnormality is severe, it is recommended to stop the tank for maintenance or inspection.

I don’t think I’ve encountered this kind of problem before, um

Mainly, the resistance of the electrolyzer is high; this high resistance results in a low current, and excessive electrical energy is converted into heat, causing high temperatures! The main reasons for high resistance: 1. Whether the contact surfaces between the copper plates have been properly polished and rust-free, and whether the connection screws are tightened properly. 2. A low saltwater concentration can also result in high resistance in the electrolyzer. 3. If it is a diaphragm, should tank removal be considered?

Personally, I think it should be normal.