The pressure difference in the resin tower is too high
Thread Content
This post was last edited by sunjl1981 on 2013-1-6 23:26. What are the reasons for the frequent excessive pressure difference between the front and rear of the resin tower? Is there any other way besides high-flow backwashing? What operations should we pay attention to or strengthen in daily life? , , -
There are two main reasons why the pressure difference between the front and back of the resin tower is too high.: 1. The resin in the resin tower is broken. 2. If primary brine contains TOC, impurities exceed the standard, and the viscosity of the brine exceeds the standard, the following measures can be taken to change or reduce operational risks.: 1. Increase the frequency of regeneration of the chelating resin tower from once to 2 to 3 times a month. 2. Increase the backwashing time of the chelating resin tower. Increased from 30 minutes to 60 minutes. The broken resin in the tower is gradually flushed out. 3. Analyze the TOC and impurity content in the primary brine to improve the quality of the primary brine. 4. Improve the pressure-bearing capacity of the pipelines around the chelating resin tower. Prevent pipes from bursting.
The analysis above is more comprehensive. If the above is confirmed to be all correct, and if the amount of broken resin in the backwash water is not large, you can consider whether there is a problem with the tower itself, such as the tower outlet pipe is too small or the valve opening is not enough, or is the electrolysis load opened higher, and the amount of brine is much higher than before, exceeding the optimal operating range of the resin tower?
Probably related to resin crushing and resin agglomeration
1. If the long-term backwash flow rate of the resin tower fails to meet the requirements or reaches the specified value, the resin in the tower cannot be backwashed, and agglomeration occurs in the resin tower. 2. The resin is oxidized and broken. Pay attention to the resin backwash situation during the resin tower backwash, and extend the backwash time. If the backwash is not complete, consider backwashing on both sides to see the condition of the resin that is backwashed out.
The resin is broken, the resin in the tower is agglomerated, the chelating resin is aging or the adsorption performance is reduced!
Test the pH of magnesium and salt water. It is possible that the magnesium hydroxide is working. We once had a broken pH meter, and the pH of the salt water was extremely high, and the pressure difference was also high.
Open the manhole, scoop out the broken resin, and add new resin! Regenerate multiple times! Or is it a problem with the resin tower?
After a long time, it will also be effective to drain the gas in the resin tower.
High pressure difference in resin tower has happened to us before: 1. The resin tower has a high resin breakage rate and requires increased backwashing. However, through communication with Japanese experts, it is recommended that when backwashing regularly, it is better to use compressed air for regular backwashing. Of course, the compressed air must be clean. When using, use a white gauze mask to buckle the nozzle, and check it during use. 2. Salt crystallizes at the bottom of the brine tank into the tower. This situation should be regenerated once and return to normal. 3. Whether the switch valve connecting the front tower to the rear tower is opened in place. 4. To analyze the specific situation, it also depends on what kind of situation it is. Is every two towers connected in series high, is the tower pressure too high, or what is the situation? Conduct a detailed analysis.