Gas Vapourizer

[maddydog]

I've been through most of the issues mentioned here from pipes blocking with condensed OA to molten aluminium. A fan wire then detached when cleaning it after a blockage spat all the vapour out the back. I was in the middle of 3 treatments so I needed to find a way to make it work while the new fans arrived.
I settled on a piece of chem resistant pipe I had from a turbo setup I'd built and a outboard fuel priming bulb as I'd similar on the vaporisers sold in Ireland. The one direction flow of the bulb seems to work a treat and the pipe shows no sign of deterioration after 100+ treatments. From loading it takes about 15 secs to discharge with a couple of pumps from the primer to kick out the dregs ( much more efficiently than the fan ever did). The only original piece on mine is the heat shield as the rest is now made of steel. The extra heat shield others have added is the next step, not for heat but as wind shield as I I find it can be extinguished in wind over 20kts, I'll also try milling a recess for a silicone ring. When I get round to making a 2nd eke I'll have a system i am truly happy with.
That said the original was not fit for purpose

Sounds like you should be manufacturing them yourself. Looks like you're pretty much there with your own and other's mods

 

[SDM]

I plan to make another but for attaching to my rothenberger superfire brazing torch.
Since it burns nearly 4 times as hot should be ready in seconds and remove the need to leave switched on between treatments.
I've only looked at it in mild steel which would cost around £35 each making 6-10 at a time. I use a plastic syringe for opening/closing and measuring the dose. It's survived pretty well but a steel/aluminium one would be better.
I've also changed the spring to one that applies pressure over more of the plate than just a corner. I'll try and get a photo of that later.

 

[maddydog]

I plan to make another but for attaching to my rothenberger superfire brazing torch.
Since it burns nearly 4 times as hot should be ready in seconds and remove the need to leave switched on between treatments.
I've only looked at it in mild steel which would cost around £35 each making 6-10 at a time. I use a plastic syringe for opening/closing and measuring the dose. It's survived pretty well but a steel/aluminium one would be better.
I've also changed the spring to one that applies pressure over more of the plate than just a corner. I'll try and get a photo of that later.

That all sounds really good. Our brains must work alike because I also attached a one-way bulb to pump to vapour (an airbed pump). I think your technical and engineering skills are superior to mine though

 

[SDM]

That all sounds really good. Our brains must work alike because I also attached a one-way bulb to pump to vapour (an airbed pump). I think your technical and engineering skills are superior to mine though

Just using what I had lying around and honestly a bit surprised that it was conveniently the right size. Bloody amazed !! by how much of an improvement on the original it was.

 

[Eyeman]

Bit the bullet and closed off the fan to make a semi sealed chamber with just the exit tube- aka a sublimox. Used an old bolt with the head sawn off which fitted into the tube connecting to the fan and nicely sealed it off.
Decided to give x2 sessions with the modified device before posting.
First session of x34 vapes was hampered by strong winds and rain which affected the the blow torch flame- using a piece of ply as a wind break the session went well with each vape lasting approx 10-15 seconds.
I decided then to remove the fan and take that annoying switch on the handle off along with taking the battery out.
Second round of vaping yesterday, another x34 was perfect as little to no wind. Switched on the flame when I arrived at the apiary and by the time mask was on and I had walked to the hives it was warmed up. No problems with OA going into the cannister and sliding the lid back on as all the pressure is directed through the outlet tube.
Last project is to make a 'wind/heat shield around the blow torch flame.
It seems to have finally evolved into something I can carry in one hand with the OA tub and spoon in the other.
Will post another video when I have time.

 

[Eyeman]

Came across this for sale at a show.
When I mentioned that the OA vapour must condense in that long exit tube! The reply was it's easy to pass a pipe cleaner down to unblock it.

 

[protheroe]

I've decided to make one with torch extended onto a base plate with copper pipe.torch tip will go into box section to avoid breeze issues and a steel tube cup dropped into the box for OA.spring lid for top of steel tube and short pipe out of front of tube as barrel.saw one on youtube and it works really well.got most of the parts.just need the time to fabricate and weld them all together.

 

[protheroe]

YouTube





































Gázos oxálsav szublimáló, oxalic acid vaporizer

 

[protheroe]

[/ATTACH][/ATTACH][/ATTACH]
Here's the vaporizer I made.it's a beast.the amount of oxalic being pumped out is amazing.its taken weeks to build with so many changes and improvements but well worth it.just a few seconds per hive now and job done.

 

[domino]

Here's the vaporizer I made.it's a beast.the amount of oxalic being pumped out is amazing.its taken weeks to build with so many changes and improvements but well worth it.just a few seconds per hive now and job done.

Did you download the plans from an ISIS website

 

[protheroe]

Copied it off one I saw on youtube.when I have time I'll try and put a video up.it really pumps the oxalic out.if you've seen the homemade ones like the one above you'll know what I mean.still having a small problem with the lid sealing tight but with the amount coming from outlet pipe it doesn't really matter

 

[domino]

Copied it off one I saw on youtube.when I have time I'll try and put a video up.it really pumps the oxalic out.if you've seen the homemade ones like the one above you'll know what I mean.still having a small problem with the lid sealing tight but with the amount coming from outlet pipe it doesn't really matter

Well done, it looks pretty cool.

 

[Beefriendly]

Yes, very well done indeeed....a gas sublimox. Any chance you might be going to produce a few more of these ....for sale?

 

[protheroe]

Once I sort a better seal for the lid I might make a few.it works great but I want it as good as it can be.ive spent the last eight weeks ironing out problems and still not quite there yet.one of the main problems is getting parts to fit.i ended up having to use two separate blowtorches.i used the burner head off the laser torch I had with the original vapouriser but silver soldering the main body buggered it up with the heat so used my silverline one as the 6mm pipe screwed straight in where the jet was removed.the laser blowtorch I couldn't find in this country so they're 30quid from Italy but its needed for the length of the burner head so it doesn't melt the soldered in copper pipe .did try silver soldering but the jet keeps buggering up with the heat and a 7/16 24tpi brake union screws in pretty tight drilled out to 6mm at back for copper pipe and tapped at front for the jet.

 

[Beefriendly]

Weld!.....

 

[Eyeman]

Not sure why the simple mod of the original wasn't good enough.
Fan isn't required, grub screw joints are to be secured with an aluminium brazing rod and the heat shield / wind guard works a treat so it can be used in all weathers. Comes up to heat in under a minute and each vape takes 10-15 seconds. Working through the top of the hive by vaping through the reversible crown board mean't that no further prep is needed for the x3 winter vapes once one has done the initial reversal of the CB.

 

[protheroe]

I did try blocking the fan off but it wasn't doing what I wanted.the oxalic chamber was too small.when I can I'll try to put a video up and you'll see the difference.it was also my winter project while I wait for the season to start again

 

[protheroe]

https://m.youtube.com/watch?v=JQbOV5h9iuw

Uploaded a clip of the gas vapouriser.its windy and cold but still worked ok.

 

[Eyeman]

Impressive beast. These gas vapourisers are the bees knees- just no messing and so portable.
We're you using approx 1g of OA as it was taking longer than the 10-15sec mine takes to finish sublimating?

 

[protheroe]

Probably 2+ grams.it's a lot faster without the wind playing havoc.even with the burner head in box section it still blows around and with 2 grams there's the water boil off cooling it back down.just doing one gram is really quick once up to temp.the other one that we all altered was a pain to load with the sliding lid and condensing.this one I have made blows any condensate out the 5mm barrel with pressure from expanding gas so makes no difference how cold the barrel is.such an easy piece of equipment to use