The problem of membrane leakage in electrolyzers
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This post was last edited by sunjl1981 on 2013-1-6 23:45. What are the symptoms when there is a leak in the electrolyzer membrane? Why does the outlet hose for the anode solution turn colored after leakage? # ， ， &
1. Slot voltage variation； 2. Changes in hydrogen content in chlorine ； 3. The alkali that enters the anode chamber in the reverse direction reacts with the dissolved chlorine in the anode solution, causing the outlet of the anode solution to turn white; this occurs at low load levels ； 4. If exposed over a long period of time, alkalis can cause corrosion of titanium materials, which can also affect the color of the output.
After the electrolyzer membrane leaks, it manifests during operation as fluctuations in cell voltage and zero potential, abnormal pH at the anode solution outlet, fluctuations in hydrogen content in chlorine, and discoloration of the anode solution outlet. The anode outlet tube changes color late after power delivery by driving. There is no overflow at the cathode outlet when the parking stop cycle is active.
Why does it change from pink to colorless?
The catholyte seeps to the anode and reacts with the anolyte
1 The pH value at the anode solution outlet is higher than 5, or the pH keeps changing. 2 The color of the anode outlet hose has changed. 3 Voltage difference fluctuations. The voltage across the 4 slots is 0.08V or more higher than normal. 5 The chlorine and hydrogen content are above the limit. The alkali in the cathode chamber flows back into the anode chamber and reacts with the dissolved chlorine in the anode solution, causing the outlet of the anode solution to turn white.
The electrode coating corrodes and falls off. Cathode outlet: purple, red, transparent.