30L/m Oxygen Concentrator Update - Project H #14 

Want to build your own? I explained tje machine in this video, comment and exchange knowledge there: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-7zN6aUKlhZI.html

To regenerate ceolite it needs to be heated and vacuumised. You can check it in small value just to make very simple weight meserument before procedure and after and check how mach water it can absorb.

Hey man, this video hits close to home because I have been operating home medical equipment company for the past 15 years and we provide oxygen. I also invested in your Nixie tube clock a few months ago and absolutely love it. What a coincidence. Your english is getting very very good. Keep up the good work!!! from Birmingham Alabama, ~Evan Jones

I have used many of those smaller oxycon. You never want to totally max them out, as you start losing purity in exchange for volume. The best you will get is around 4lpm at 90% or so. Also the nasty long candles may be due to dirty or damaged torch ports. See if a wire brush or a port cleaner works to fix it. Make sure you run compressed air through it to push out any detritus! great video!

And to prevent same trouble in future - make some small tanks or only one big with some used ceolite just to catch water from air after cooler.

You may need to activate them, to unlock adsorption, like you would charcoal. It's usually done exposing them to an activating chemical (acid or base) and then driving out moisture. Some zeolites activate with strong alkali, some require a 1-2 step process with both

Great video sir, love the ending at home with the kids. Great potatoes too.

الله يزيدك من فضله وعلمه اللهم امين انت ممتاز في عملك وخبرتك في مجال الاناره كبير مشاءالله تبارك الله اتمنالك التوفيق دائما" ونجاح ❤👍👌👏👏👏👐👐

Great project! I admire your meticulous approach and have followed you from the beginning. With regard to the problem with the sieves; I designed a similar project where wet air 95%RH loaded with CO2 was to be filtered in a similar manner. To keep the humidity from damaging the filter we used a Peltier element and finned heat exchanger inside an aluminium case, condensate was drained by gravity from the base of the case (into a sealed container) , this may be a more effective method of moisture removal than using ambient air temperature for the condenser. I assume that you probably measured the %RH coming out of the condenser? Good luck with your marvellous work, truly inspiring!

He dalibor! had same problems with my sievebeds. I put them in the oven under vacuum and it did not help anything. Have some more old concentrators all same sort of problems.I guess the best is new molecular sieves. I have the idea that short runs are not good-leave them on once started. I vent what i dont need with a relieve valve. In my experience with the little philips burners anything under 90% O2 is not good enough. The burners work but it is not gonna do the job properly... Greeting jerome

Nice, epic ending :c)

Very interesting project. :-) If you think the problem is water in the Zeolites could you not just simply put them under a hard vacuum and then let the water evaporate out that way, you don't want to recirculate the air when you dry out the Zeolites but perhaps adding some heat to them while you evaporate them would help speed things up a bit.

I think you should work toward having excess oxygen for later upgrades.

pressure will affect the purity reading on that meter.

Hi, I'm Parthiban from India. Pretty impressed with your videos especially with your oxygen concentrator. Here due to the pandemic the oxygen supply is too low and requires some out of box solutions other than the liquid oxygen cylinders. It would be a great help if you can share your oxygen concentrator system schematics and other details so that we can try reproducing it locally. It might save lot of lives.

I think you are heavily underestimating the oxygen usage of your torches, they need lots of flow!

Would it be viable to use electrolysis? Maybe even discarding the hydrogen and only using the oxygen. It seems like that might actually turn out to be less of a hassle than the current system.

Individually, the INVACARE oxygen equipment is much better and for much of the others, thank you teacher for your videos

Also potatoe 🥔 😹

Id help dig up 2,000lbs of potatoes For one of those Nixie Clocks!

Hello Dalibor. Great and very interesting lab work! I watched a jewelry maker using propane and a "mouth piece" to blow into the flame, simply using his body exhaust. He claims that the flame reaches about 2000° C and he was able to melt gold/silver to make a finger ring. Sure, you add additional exhaust gases into the flame, mainly N2, CO2, and H2O, that might be problematic, but when I saw him blowing into his torch, via a dedicated mouth piece that pipes the exhaust gas to the propane/valve, I was wondering if that could be useful in my lab. To test it out, you only would need compressor pumps and maybe a dehumidifier - both you already have. FYI, you might want to check out a so called "Mundloetrohr" (Trubka pro pájení úst?) for propan. Food for thought :) Good look with your project. Stefan.

Have you thought of storing the gas in a gasometer? Safety might be a concern... 🤔

30lpm is good but what is the purity level. Average person breaths 7-8 lpm, with this may be a 15 lpm is good enough...can you please help me understand reason for targeting 30 lpm

Would a hydrogen flame be hot enough, if so would be electrolysis of water be an option?

Un servivio amigo, en esta pandemia necesitamos concentradores de oxigeno, lamentablemente en mi pais no hay y lkas autoridades no permiten importar estos equipos, por lo que le suplico me facilite toda la informacion posible para poder replicar su trabajo y de esa manera poder salvar vidas. de antemano le agradezco su tiempo A friendly service, in this pandemic we need oxygen concentrators, unfortunately in my country there are none and the authorities do not allow importing this equipment, so I beg you to provide me with all possible information to be able to replicate your work and thus be able to save lives . I thank you in advance for your time

Zdravím Dalibore, Vaše videa mě jednoznačně baví. Kdyby jste je chrlil tak 2 až 3 denně vůbec bych se nezlobil :-) Jen mi trochu nepasuje ten závěr o té "sofistikované" práci. Podle českého přísloví by ty Vaše brambory měly mít velikost máku, maximálně hrášku ;-) Ale možná jste pomáhal sousedovi, to potom té velikosti odpovídá :-D

Great project, i have a question, Where did you buy the cylinder?

I would not wait to see the failure point on the car radiator and pop in some AC condensers in their place, which are far higher rated beasts. Roof top units, would probably have the best parts for this kind of stuff (i'm only saying(basing) this because they're designed to run bigger distances, nothing else). To my knowledge, most car rads don't peak over ~16psi unless they're highly specialized systems (IE, expensive). One other thing, i'd get rid of the commercial ball valves you're using for something with a screw based system. I know, antiquated, but there's no substitute for screw based regulators when it comes to precision, and if there's one thing i've learnt over the years with handling stuff like this, is that at the end of the day, you want to go down the path of least resistance. BUT, this is just a personal preference. That jamble aside, awesome update.

Огонь! Картоху копать ништяк, ну его нафиг этот кислород генератор.

I would think some kind of liquid oxygen system would be FAR more reliable and easier. expansion ratio is like 1 liter of liquid to 900 liters gas. 10-20 liters would get you through a whole day! All you'd need to supply is some heat for boiling.

كم تكاليف سعره

How do you still have enough time for house and kids. You must be working at 300% speed compared to everybody I know.

those car radiators are only rated 12 - 15 psi.

Hello, I would like to communicate with you, please I believe that we can help many people with what you have created.

hello sir, i have mailed you, kindly reply if can...nice video

Here is what I'm working on to make my own concentrator... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-UFdXYqKoshU.html Might be helpful to you? I'm not as technically minded as you are so I'm struggling. But the German engineering is freely shared and addresses some of your issues as well. Have you considered running a high volume oxygen concentrator? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JVOmXhjbLGQ.html A company sells it in the states and it is specifically used for producing oxygen for glass blowers. It costs about 5 thousand USD, but it can produce whatever you need in LPM. I don't have the resources to buy the hvo, but I think I can make my own concentrator for less than it will cost me to buy a new concentrator. Also, have you considered using a desiccant like salt or sodium silicate to run your air thru before sending it thru the sieve? Also, I've been looking at an aquarium pump which is designed to run all the time and not produce heated sit. There are a lot of those that produce at various levels... Those are the thoughts I've been working with... Hope it's useful. If so, I'd love a very simplified step by step to make my own concentrator... :-) Alternatively, I'm looking at a Hydrogen Oxygen water torch that separates them, I'm just not sure how to do it at the volume I'd need so I could use it for several hours at a time...

Ce puritete iese

Факер диза.

This message may seem crazy, PLEASE HELP 🙏 My mom has Covid. I have 2 choices. 1. Bring her home on Hospice, make her comfortable, or send her to a longer term hospital, and pray she can come down off this oxygen. I know how crazy this is believe me... HOW can I get an oxygen concentrator that will pump out 40LPM at 80% Oxygen? I'm so desperate. I dont want to lose my mom. I know, im crazy, but I love her so so much. I will try ANYTHING..