Problems that occurred during the cyclic testing
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This post was last edited by sunjl1981 on 2013-1-7 00:25. Our factory is currently getting ready to start operations, using pure water circulation to test the performance of the electrolyzers. After some time of circulation, bubbles were observed coming from the bottom of the cathode outlet hose in one of the electrolyzers (the bubbles originated in the main pipe and then emerged through the hose)! All other electrolyzers are working fine! How did this situation arise, how should it be dealt with, and how can we prevent such situations from occurring in the future? It uses Asahi Kasei’s electrolyzer! This post was last edited by limingshuguang on 2009-4-19 09:49 ] # hcbbs
If it’s the catholyte outlet hose, there shouldn’t be any bubbles coming out of it, right? Because the fluid flows from the outlet hose into the catholyte outlet main pipe, and then from there it flows away
I don’t understand; how can one tell there are bubbles when pure water flows down the wall of the hose?
I’m still puzzled: in Asahi Kasei, the alkaline solution flows from above the unit tank down through hoses to the main pipe, which is opaque, and then the fluid flows further downstream. How can there be a phenomenon like the bubbles rising from the bottom as described by the poster? ?
Pure water circulation, from the emergence at the main pipe to the electrolyzer? ? :Lol, just a few bubbles? It keeps popping up continuously; I guess only a few have appeared. If that’s the case, then there’s no problem – everything is normal! (Personal opinion; does not represent expert views!) ) This post was last edited by limingshuguang on 2009-4-19 09:46 ]
It was coming out very heavily for a while, and it kept coming out non-stop! However, it will return to normal automatically once the cause is identified~
I don’t understand either, right? If you understand, there’s no need to ask urgently
It’s not visible from the main pipe; the hose is transparent! It’s bubbles that come out of the main pipe and then out through the hose!
Yes, that’s exactly what happens; the bubbles are also very large and quite noticeable! Under normal conditions, gas is generated inside the electrolyzer and then enters the inlet and outlet manifolds. Is the gas flowing in the opposite direction because there’s a leak somewhere? Is there another reason? This post was last edited by limingshuguang on 2009-4-19 09:47.]
Is it a false membrane or a true membrane? What is the nitrogen flow rate at the end of the channel, and what is the levelness of the main pipe installation? Where in the electrolytic cell is the hose that shows this phenomenon?
I guess you’re referring to the situation where the overflow tube gets full when the battery cell is fully charged; there shouldn’t be any problem with that
Then why doesn’t this phenomenon occur in other electrolyzers? It occurred during the test cycle of pure water in the electrolyzer, not during the flushing process~
A false membrane is being used, and the levelness of the main pipe is fine! This phenomenon occurs in many cathode outlet hoses~
Air blockage! The inlet pressure is unstable; there is gas in the liquid, and the false membrane is not properly attached, causing vibrations in the tank. This results in uneven flow from the output tank, leading to gas blockages. Afterwards, the bubbles move upward along the hose where the pressure is lower. It seems there’s no problem! (Provided that the operations are done correctly; this is a personal opinion and does not represent expert advice.) This post was last edited by 181128425 on 2009-4-22 at 21:47.]
Personally, I think this is a normal phenomenon.
Oh? Why? Why don’t other electrolyzers experience this problem?
:Lol, is the flow rate of the catholyte into the tank stable, and are the valves of the nitrogen filling system in good condition?
The flow rate is unstable~ During the cyclic experiments, no nitrogen is introduced; only the flow rate of water is used to control the pressure difference between the two poles~