Corrosion rate issue in the circulating water system! !
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Our company is a chemical recovery workshop in a coking enterprise; the circulating water is used to cool gases and other substances, and cooling is achieved through fan-driven cooling towers and lithium bromide refrigerators. For a long time, the corrosion rate of the components in contact with this circulating water has been above the acceptable level, and these components are located in the bottom tank of the cooling tower. Currently, all indicators are within the normal range; the total phosphorus level is between 10.5 and 12.5 mg/l, and a compound organic phosphorus agent is being used.
The corrosion caused by circulating water has a much lesser impact on equipment and thermal efficiency compared to the effects of scaling and sludge. Corrosion in waterways generally does not reach a level that endangers production. When considering drug application and wastewater control, cost issues also need to be taken into account.
Has the original poster checked the pH value? It’s very important. Our circulating pool has been in use for 5 years now, and there are leaks at the bottom – corrosion has become severe over time. Although it doesn’t affect production, we still have to stop operations in order to address the issue.
The pH value of the circulating water in our company is generally around 9.2
Alkaline corrosion~? ? The corrosion rate shouldn’t be that high~! I’m a bit confused~! The method to slow down corrosion is to add chemical solution inside
Rehydrate regularly, and test again； Chloride ions.
Pay attention to the pH value; the pH value in our factory is between 8.2 and 9
With PH=9.2, is scaling not a concern? Corrosion has been suppressed, but the problem of scaling has arisen
The phosphorus level is very high; is it really necessary?