I see three paths for the refrigereant to flow but only one path has an uninterrupted path to the suction. How does the other two paths efficiency effect the evap given that the expanded refrigerent has to travel back over the liquid refrigerant.
Regards
John.
"Thermodynamics is a funny subject. The first time you go through it, you don't understand it at all. The second time you go through it, you think you understand it, except for one or two points. The third time you go through it, you know you don't understand it, but by that time you are so used to that subject, it doesn't bother you anymore".
I'm not exactly following what your saying John.
The red dot is where the cap tube will feed and the blue dot is where the suction will be.
All brazed up.I put the evap in my drill press with three equal length and hopefully equal pressure copper rods holding the cap in place while I brazed. I did purge and inside of evap is still shiney. I can look in the suction line and see the shining star.
Moving forward with enclosures and system design.
looks nice runmc, cant wait to see how it goes.
looks nice ron
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Wow like how you cleaned up the joint, looks great and I can't wait to see the results.
Shiiiiiny...I wants one!
looks very nice, looking forward to seeing how well it performs.
Looks great Ron, it will be good to have a place to start from!
Yeah great brazing job, plus great idea setting up that jig to hold top down evenly and nice and tight!
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I cannot wait to get my hands on one of these...last thing I am waiting for and my first SS DD will be under way!
That looks great! Few questions though
What rods did you use and with/without flux?
What grit sandpaper did you use on the face of the evap?
How long did it take to clean it up as good as that?
It took me at least an hour to clean. I've got a round fiber wheel that I put on a drill that I use first. I put my drill in my vise and clean the extra brazing alloy off the sides and top.Originally Posted by Brettbeck
That looks great! Few questions though
What rods did you use and with/without flux?
What grit sandpaper did you use on the face of the evap?
How long did it take to clean it up as good as that
After that I sit down and start lapping the base. I believe I started with 600grit paper and worked to 1600 or 2000 grit. It does take time.
I brazed with the rods pictured below, no flux
The evap brazed together very easy with only one seam.
Last edited by runmc; 05-01-2007 at 03:14 AM.
It's a really good brazing road.
I'd used Harris dynaflow some days ago, but with flux, I thought that it needs to be used with it.
Very nice brasing Ron
What do you use to brase? Oxy/acet, oxy/propane, MAPP etc..
Tom
"What will become of us, will we evolve"
Very clean for using those, I find that I cant get that clean without using 45%.
If you have a cooling question or concern feel free to contact me.
I use my "mini torch" with Oxy/acet. It does everything I need plus saves my Oxy/acet on most jobs.Very nice brasing Ron
What do you use to brase? Oxy/acet, oxy/propane, MAPP etc..
Tom
The only time I use flux is when I'm brazing copper to stainless and then I use the stay-silv (black) high temp flux.
I'm sure some of you remember "Red Wolf". He steered me away from using flux unless absolutely needed.
Could you post a pic of the tool you use to clean?
If you have a cooling question or concern feel free to contact me.
You can get the wheel at Homedepot.
I'll pickup one as it seems to work a bit better then my brush wheel I use to clean joints. Wear gloves tho Ron if you don't as that looks like a mean little setup if the evap goes flying!
If you have a cooling question or concern feel free to contact me.
Those wheels are in the tool section by the grinding wheel and sandpaper for disc sanders. They will clean paint off of metal very well, and they will take off excess brazing alloy with some patients.
Haha so thats how ya do it. My wheel will only remove oxidation. Thanks for the tip Ron, I"ll jump out right now and grab one of those suckers.
If you have a cooling question or concern feel free to contact me.
This is a 6 inch long by 1 inch diameter accumulator with tube running from end to end. You'd have to have been there to know what that means.
Soldered Mole style
Sweet!
Did you just use your torch to heat up the accumulator and then let the solder flow over the accumulator? I plan on doing it that way with my next singlestage as using a soldering iron would be impossible
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