Should the brine fed into the electrolyzer come from a sump or be pumped in?

It is more convenient to pump the brine into the electrolyzer. The investment is not large either. It is also convenient for regular maintenance.

Whether to use a sump or pumps for the brine fed into the electrolyzer depends on the electrolyzer process you choose; if a chlorine-based process is used, pumps are required instead of a sump, while if a Wood-Denola process is used, a sump is necessary.

If I had a choice, I think a high-level tank would be better, regardless of the type of pump. When transporting liquids, there are always certain pulses, which cause vibrations in the membrane; therefore, it is better to use a high-level tank. I have discussed this point with those involved in chlorine engineering as well.

Using a sump is a good option; the electrolyte in the sump is also pumped up. The electrolyte enters the electrolytic cell due to the difference in liquid levels, which ensures stable pressure and is beneficial for the membrane. Additionally, in the event of a power outage throughout the plant – including the power supply used for operation – the electrolyte from the sump can be used to replace the electrolyte inside the cells

It is better to use a sump; when the salt water pump feeding into the sump trips unexpectedly, the salt water in the sump can still supply power for a while, giving time to restart the pump without causing a shutdown.

Whether the brine fed into the electrolyzer is supplied from a sump or by pumping depends entirely on the circulation mode chosen for the electrolyzer—forced circulation or natural circulation. Due to differences in their design, forced circulation requires a large amount of water containing salt, and pumps are necessary to meet this demand ； Natural circulation requires a small amount of water for salt; designing a high-level tank is sufficient to meet the flow requirements. At the same time, there are certain differences between their electrolyzers in terms of pressure resistance.

I agree with what was said on the 4th floor; our factory uses a high-level tank for the brine, so there is no impact from pulses

Agree with what was said on floor 8. Since the electrolyzer has been selected, there is no way to change it.

I think it’s better to use a sump; no matter what type of pump it is, there will always be some pulsation when transporting liquids, which in turn causes certain vibrations in the membrane. Therefore, using a sump is a better option. Unexpected shutdown. When power is cut off, the brine in the high-level tank can still supply power for a while.

We are currently using tanks from the chlorine engineering sector; they operate on natural circulation, but pumping is used for this process! I asked Pochlor Engineering, and they stuck to this opinion without giving a clear explanation. The ratio of purified salt water to recycled salt water is 1:1; I wonder if it’s due to the large volume involved? Brief summary: 1. The advantage of a high-level tank is that it provides a buffer against accidents and emergencies ； 2. The advantage of pumping is its convenience and lower cost. 3. The amount pumped should be greater than that at the higher level. This post was last edited by *ou*ngzhe on 2007-12-19 15:49 ]

For chlorine processing, pumps are recommended for use. While a sump tank can also be used in such processes, it is not advised; the latter requires higher investment costs, and the load on the ground structure also needs to be taken into consideration. Chlorine plant circulation salt water pumps usually come in pairs, one in operation and one as a backup; if one of them fails, the backup pump can be used. If both pumps fail (although this is a very rare possibility), since in the chlorine production process the ratio of secondary refined brine to circulating brine is approximately 1:1, it is still possible to operate for some time using only the secondary refined brine, allowing time for the pumps to be replaced. Of course, the time cannot be too long. Regarding the issue of pulses causing damage to grooves, the grooves in chlorine engineering systems do not pose such a risk. :lol :lol