1406 Safely Separating CO2 Fire Extinguishers For Their Scrap
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- เผยแพร่เมื่อ 15 ต.ค. 2024
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You've come far thanks again
Thanks for this demo :-) I think this is a good health & safety, need-to-know for anyone who possesses or works around pressurised canisters such as these.
I can see so many uses for these ... even if you only melt down the aluminium to make huge thick heat sinks or something.
Good advice on being careful with pressurized items I knew of three contractors working at a mine in a hurry forgot to depressurize a tire for a huge ore truck they removed some of the bolts and the tire exploded shooting nuts killing two guys at the scene the third died in 12 hours I was told it looked like a bomb went off to all builders wherever you have to be extra careful don't just trust a gage go the extra mile to be sure
Plugging away . I can't wait to see what goodies you will be getting in the coming weeks
Awesome Robert, thank you.
Just a though mate. Do you have a greenhouse in the garden?
Hey Rob. I need your Expertise.
Why when you discharge a capacitor does it charge back up some.
I made a motor that produces 90v with a hand turn. This goes through a H bridge to a single capacitor. If I place a multimeter across the terminals and then cause a direct short. The voltage drops to zero instantly then slowly charges back up to about 7v.
I have no clue why and I have no other to ask.
At first I assumed it was like a tank set up. Then I realised the coils are the other side of the H bridge.
There is littereraly nothing connected to the load.
@@garethb5729 capacitors have electrolyte in them which acts like a battery plus when you discharge them there will be a slight charge on each plate for dy/dt amount of time
My old place the fire guy dismantled a old one I had. 3000 psi gas cartridge inside.
Hey Rob any chance you can do something on how to make Hydrogen Metal hydride for Hydrogen storage and release? Perhaps there is a way to store hydrogen in something like graphitic carbon nitride (one of your earlier videos) or perhaps using magnesium and then releasing the hydrogen using a laser or something? That way you have a controlled release of hydrogen fuel...I don't know if there is an easy way to create a metal hydride easily and without specialized equipment?
Just Sub'd your other channel Bob
I’m surprised some TH-cam millennial employee hasn’t removed this on the grounds of climate warning 😁
Replicate mine it's less than any design test my design Please Thanks . I have no advertisements or any help
Why are you "recycling" perfectly good fire extinguishers? In fact, the ones I could see appeared to be factory fresh!
If they were “factory fresh” they wouldn’t be in a scrap yard. They clearly don’t have enough gas to reliably extinguish big flames which is why they got thrown out. just because they have gas left don’t make them usable or “factory fresh” they aren’t scuffed up because they are kept safe until the one time they have to be used.
I shop from scrapyard piles at least once a week and I’ve pulled most of the tools for a complete metalworking shop out of the piles. Also many working electrical appliances and gasoline powered equipment. Brand new wire and piping fixtures. Occasionally things are still in the packaging from the store.
The reasons this happens are complex. Very little is explained by theft; a lot is explained in the different efficiency of large organizations that isn’t the same as efficiency for ordinary people. There’s no way to save it all. I could profitably run an upcycling business there with several employees.
If you find items or parts at a scrapyard that can be upcycled in any way, you should do so and feel good that you created an efficiency better than the smelter melting it down.
The simplest answer is security theater. Once they each their expiry date, irrespective of condition, well, _would you trust an extinguisher that's expired?_ And that's the perspective of management.
A CO2 extinguisher is manufactured for a 10 year life span.
On the 10th year, due to the extreme pressure the cylinder requires testing.
This process is called hydrostatic discharge testing. In short the cylinder is filled with water, pressured and zapped with electricity to identify any fractures.
As you can imagine the process is costly. Due to manufacturing it's cheeper to replace a 10year model with a brand new one. Hense you will find them at almost all scrapyards.
Also due to the extreme pressures a CO2 extinguisher must be kept dry and maintained in an area with thermal regulation.
Example. 15°C = 51 bar pressure.
As the temp increases, so does the pressure.
Because of this extinguishers tend to be in very good quality.
@@sleepingdragon385 rubbish, the only thing that will be wrong is the cylinder being out of test date and it’s not economical to do so Vs manufacturing a new one