Manufacture torch hydrogen or Brown's Gas

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Capt_Maloche
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by Capt_Maloche » 02/08/08, 15:57

Thanks for the advice, I don't intend to separate the H2 from the O2 at this time, although a simple wet "cloth" might do the trick, I still have to think about the overall design. , I want to get relatively compact equipment

today we use pressure switches, the gasometer is a simple way to maintain a pressure in the open air

The pressure on a torch determines the speed of exit of the gases to avoid a flashback in the piping, this is one of the important aspects of the design, and it depends on the speed of propagation of the flame, I suppose that H2 + O2 is extremely fast, it is this speed which will determine the outlet pressure

on acetylene oxy is 0.5bar for acetylene and 1bar for oxygen, in the case of a mixture ready to burn / explode, I do not know if for safety indeed, I would not be constrained to separate the 2 gases

what system are you talking about?
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OUCH, OUILLE, OUCH, AAHH! ^ _ ^
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by chatelot16 » 02/08/08, 18:21

for a torch the quality of acetylene or hydrogen which allows the autogenic welding is not the calorific power but the speed of propagation of the flame: these 2 gases have a speed 10 times superior to all the other gases: it allows to put a lot of flow in a small flame therefore to make a sufficiently concentrated heat for the welding of steel: with propane a flame of the same power is 10 times larger and not concentrated enough: if we increase the flow it gets blown

the acetylene torch contains a kind of venturi where the oxygen pressure sucks the acetylene: it still works with an almost zero acetylene pressure

therefore the electrolyser can operate at a low pressure which will be sufficient for the hydrogen: this low pressure reduces the risk of leakage

the oxygen will have to be compressed: avoid the air compressor lubricated with oil: there are oil less air compressors with seals that I assume in Teflon without really being sure: I cannot trust them to pure oxygen without knowing exactly: I prefer the rubber diaphragm compressor: no friction no risk of leakage

I already thought of leaving H and O mixed with a great speed in the pipes so that the flashback is impossible: it is a false track: to have such a high speed we would need a very fine pipes, and a pressure huge start

for diaphragms I’m in polypropylene geotextile
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by Flytox » 02/08/08, 22:41

We liked you Captain ...

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If it is Captain ... you will survive your experiences ..... it may not explode every time .... who knows?

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: Mrgreen:
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hidrogen flame machine plans




by rodibruno » 03/08/08, 02:16

Capt_Maloche wrote:Thanks for the advice, I don't intend to separate the H2 from the O2 at this time, although a simple wet "cloth" might do the trick, I still have to think about the overall design. , I want to get relatively compact equipment

today we use pressure switches, the gasometer is a simple way to maintain a pressure in the open air

The pressure on a torch determines the speed of exit of the gases to avoid a flashback in the piping, this is one of the important aspects of the design, and it depends on the speed of propagation of the flame, I suppose that H2 + O2 is extremely fast, it is this speed which will determine the outlet pressure

on acetylene oxy is 0.5bar for acetylene and 1bar for oxygen, in the case of a mixture ready to burn / explode, I do not know if for safety indeed, I would not be constrained to separate the 2 gases

what system are you talking about?


Hi Cap:
I have two patents in "rar" with an ample description of a machine to weld a hydrogen, they use the acetylene torch, but they (they) make flow the oxidrogeno atraves of two separate burbujeadores: one with alcohol and the other with benzine.
Each burbujeador raised a garden hose different from the torch which has its respective keys to regulate the pitch of the gases which has different behavior, since one was washed by alcohol and the other was washed by benzine, and each brings different compounds aggregated to its initial structure.

The problem is that not like publishing them in the forum, my pasword and my code the ones I use in the forum do not work in downloads. Remember that I don't speak French.
greetings.
Rodolfo Bruno
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by jonule » 03/08/08, 13:40

Hello,
I think this subject interests more than one,
for codes Christophe should be able to fix that for you? -)
otherwise you can send them by email (contact by MP) we will publish them!
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by Capt_Maloche » 03/08/08, 15:16

Hello everyone,

no Fly, I'm punctured :D and my first tests will be outside

sure it's interesting as a subject

Now, to separate H2 and O2 on 100 plates spaced 3mm apart may be complicated for an "amateur" assembly and moreover I want this assembly to be very simple

The first risk is the flashback, it is first on this that we must work
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"Consumption is similar to a search consolation, a way to fill a growing existential void. With, the key, a lot of frustration and a little guilt, increasing the environmental awareness." (Gérard Mermet)
OUCH, OUILLE, OUCH, AAHH! ^ _ ^
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by Christophe » 03/08/08, 15:27

Speaking of blowtorch, here is a method to improve an HP printer!

http://www.youtube.com/watch?v=Z5V8sKjMUF0&

: Cheesy:
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by Capt_Maloche » 04/08/08, 13:57

I'm going to do this with my epson, I'm tired of throwing full ink cartridges, the ink management system sucks, and a chip prevents the use of the cartridge until end

prefer HP the printheads are on the cartridges

the torch, it will be September or October, after the holidays which begin ... tomorrow :D 8)
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"Consumption is similar to a search consolation, a way to fill a growing existential void. With, the key, a lot of frustration and a little guilt, increasing the environmental awareness." (Gérard Mermet)
OUCH, OUILLE, OUCH, AAHH! ^ _ ^
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by Bibiphoque » 04/08/08, 15:27

Hello,
I speak from experience, it is essential to obtain electrolysis with the lowest possible voltage and to place non-return valves.
The O2 / H2 explosions, it's not pipeau !!
Just a few cm³ it's already been

For example, a jeweler's micro torch works with only 2 V 100A for a very small flow.
The slightest spark inside the device is destruction guaranteed. Boom !!
Use extreme caution.
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This is not because we always said that it is impossible that we should not try :)
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Capt_Maloche
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by Capt_Maloche » 04/08/08, 22:58

What do we do with 2V 100A?

the idea is to work as a voltage divider with a hundred plates to electrolyze between 2 and 2.4V from 240V

if I can go to 110 or 120 plates then I would have a voltage close to 2V, but I do not know if I could pass the required intensity

With 2V my flow would be 120x0.625x10A = 750L / h, that should do it, it's still the equivalent of 2V at 1200A on 2 plates

the design will be primarily based on security
starting by checking the speed of the H2 + O2 flame front, and rather knowing if the stoichiometric mixtureH2 + O2 is "controllable" or if it is necessarily an explosion

I remember a video where S Meyer increases the pressure in his plexi tank to make a flame from a nozzle, it did not seem very high, it will be necessary to make tests

then safety pressure switch and gas type solenoid valve

GOOD, I GO TO THE MOUNTAIN 8)
See you in 2 WEEKS
0 x
"Consumption is similar to a search consolation, a way to fill a growing existential void. With, the key, a lot of frustration and a little guilt, increasing the environmental awareness." (Gérard Mermet)
OUCH, OUILLE, OUCH, AAHH! ^ _ ^

 


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