Soft water acidification for new hydrogen generators
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The new hydrogen compressor in our facility is a reciprocating compressor, and softened water is used for cooling the cylinders. This water is recycled, with only additional softened water being added when the level in the softening station drops. After some time of operation, it was found that there were multiple points of corrosion and leakage in the pipelines of the softening station. After adding chemicals to the station, the pH value of the softened water turned slightly acidic after some time. May I ask the experienced colleagues, what could be the cause of this?
Reused softened water leads to pipe corrosion and leakage. 1. It is suspected that the O-ring at the filling area is leaking, allowing process gas to enter the softened water; there are also small amounts of acidic gases in the process medium, such as in sulfur processing conditions. . . 2. It is relatively unlikely that acidic gases in the factory building will dissolve into the water in the tank.
There are reasons for concentration; we too will opt for a commitment test replacement.