Building an IC69 Heat Exchanger

[gholladay]

HG23 I did use that paper, but obviously I was wrong haha

GW I'd love to see your math here if you'd be willing to share. My email is gholladay@igadiltd.com.

GH

 

[gholladay]

A6,

I've added circulating pumps into my 70/30 glycol/water solution to circulate the glycol around the edges of the freezer and my wort chillers. I can do 6 runs before I need to supplement dry ice. I'd like to have a chiller that can actually keep up with these haskels.

GH

 

[A6 Grower]

Have you thought about running 2 coils?? The first one in your water bin that your collection pot sits in, to heat up your water and dissipate a lot of the main heat from the pumps then that second coil in your freezer/chiller. Im going to try this setup here in a few weeks. Like i mentioned its not really necessary to chill your recovery vapor to such cold temps but just down to little to no psi. If you dont chill your tanks then theres not to much of a reason to get the returning vapor down to colder temps then your tank. For instance, last time i used pure n-tane my coils were to cold and were creating tons of back pressure. Took the coil half way out of the glycol and it instantly fixed the issue.

For the liquid injection you defiantly want as cold as you can or want to go as long as you have pressure behind the solvent to push it along once its been chilled down to 0 PSI

 

[gholladay]

I use one 1/2" x 50' wort chiller coil per haskel (i have two haskels running at the same time) in the same freezer. I also use a 1/2" x 50' coil in the same freezer for injection. My tanks are outside with an ambient temp of around 60F, so pressure is typically 60-80 psi

GH

 

[A6 Grower]

Yeah the two haskels is probably to much for the freezer. Also if your tank is at 60 psi then chilling your vapor down past that psi isnt really doing much, its just fighting its way into the tank. Theres snow there now right? I bet if you chilled your tank slightly youd get some faster recovery rates, pack some snow around you tank lol, i did that on a farm and actually had decent recovery rates. I havent noticed slower recovery but not chilling my recovery coils as much.

 

[Gray Wolf]

GW,

Thank you!!! That is incredibly helpful. So you use this chiller for one haskel and one coutnerflow coil correct? Sounds like I would need two of these, one for each haskel. Have you had good success with this set up as far as recovery rates go?

Thanks,

GH

The Temco Fisher Scientific is hooked to the counterflow after the pump, and to a coil in the storage tank barrel.
tank pressure is less than 15 psi.

Recovery rate is about a pound each three minutes.

 

[Gray Wolf]

HG23 I did use that paper, but obviously I was wrong haha

GW I'd love to see your math here if you'd be willing to share. My email is gholladay@igadiltd.com.

GH

.39 BTU/lb/F and add 166 btu/lb heat of vaporization will put you in the ball park.

Use pounds recovered per hour X delta T X .39 btu/lb, and add 166 btu per pound.

 

[Dognponyshow]

.

 

[gholladay]

GW that's slick as usual. Does that still give you enough pressure to flood or do you increase the temp at the collection basin when flooding and cool it back down during recovery?

GH

 

[gholladay]

The Temco Fisher Scientific is hooked to the counterflow after the pump, and to a coil in the storage tank barrel.
tank pressure is less than 15 psi.

Recovery rate is about a pound each three minutes.

GW,

Do you have any recommendations for what compression fittings to use on the counterflow coil? The coil I bought has a 1/2" ID pipe. So the outside diameter is about 9/16". Does swagleok make a part that will fit that? I've never seen an odd size like that in their catalog. Did you leave the garden hose fittings on the outside (coolant) pipe? Or did you replace those too?

Thank you,

GH

 

[Dab Strudel]

GW,

Do you have any recommendations for what compression fittings to use on the counterflow coil? The coil I bought has a 1/2" ID pipe. So the outside diameter is about 9/16". Does swagleok make a part that will fit that? I've never seen an odd size like that in their catalog. Did you leave the garden hose fittings on the outside (coolant) pipe? Or did you replace those too?

Thank you,

GH

Thats an odd size. I was about to grab 100-200 feet of 1/2 inch tubing. Why did you get pipe and not tubing?

 

[Gray Wolf]

GW that's slick as usual. Does that still give you enough pressure to flood or do you increase the temp at the collection basin when flooding and cool it back down during recovery?

GH

Depends on how cold we inject. We keep the tank around 32F, so it is at about 17 psi, and it works fine until we drop to subzero injection temperatures, at which point we rely on a 50/50% mix and use a second LPG tank at 100F to provide about 104 psi injection pressure.

 

[Gray Wolf]

GW,

Do you have any recommendations for what compression fittings to use on the counterflow coil? The coil I bought has a 1/2" ID pipe. So the outside diameter is about 9/16". Does swagleok make a part that will fit that? I've never seen an odd size like that in their catalog. Did you leave the garden hose fittings on the outside (coolant) pipe? Or did you replace those too?

Thank you,

GH

Yeah, the coils are actually metric. 9/16" is about 14mm and I had to special order them from Swagelok.


Yes, I replaced the brass fittings.

 

[gholladay]

Yeah, the coils are actually metric. 9/16" is about 14mm and I had to special order them from Swagelok.


Yes, I replaced the brass fittings.

GW,

Thanks for the great info as usual. That's a perfect injection temp. fantastic setup! I'll call my rep at swagelok and see what he can send me in 14mm

GH

 

[Dab Strudel]

I cant figure out whats going on exactly.. I posted a pic of my 3/8"x50' coil, mind you my 1/2" hose is 8 feet long to make the U-turn from the bottom ball valve to the top of my system that uses 3x36 columns. My pressure from my tank is about 40ish at 55 degrees (I may have let too much pressure out). Pot is 40 qt 90% full of 50/50 PG/Water, which is sitting in a freezer at the lowest setting. It is not getting colder than -20. Also, where I use 1/4" fittings is because I dont have any other 3/8 adapters on hand.

My issue is that my solvent is freezing somewhere. After putting it together and making sure it holds pressure and windex tested it I decided to clean my solvent and get the little particles my compressor may have left in it. I open the BV to let the IC69 fill up, give it 3-4 mins to completely fill and chill (it holds 1.25lbs when its full). I start a test run (with no material tube) by opening the ball valve on the cap of the material column to let out 7 lbs of solvent to see NO drop in the holding tank weight. Not even one digit dropped.

So I close the ball valve on the solvent tank so I can gauge how much I recover to get more insight of whats going on, I recovered about a half lb. That leads me to believe my 1/4" fittings are not the hold up. It seems like its happenning at a point in the coil, but why? Could it be because the goon that welded my pot made the last 3 feet go in an upward direction for 3/4 of the last coil before it makes its way out of the pot.
Can you tell me where my issue is? how is it freezing so bad that I use 100 PSI of pressure and it doesnt do shit for 5 mins til the solvent thaws enough to let loose and shoot liquid butane everywhere.
Should I bother getting the proper adapters to omit the 1/4 or should I just put that IC69 aside and buy one with 1/2" coil and fittings?

 

[Gray Wolf]

I cant figure out whats going on exactly.. I posted a pic of my 3/8"x50' coil, mind you my 1/2" hose is 8 feet long to make the U-turn from the bottom ball valve to the top of my system that uses 3x36 columns. My pressure from my tank is about 40ish at 55 degrees (I may have let too much pressure out). Pot is 40 qt 90% full of 50/50 PG/Water, which is sitting in a freezer at the lowest setting. It is not getting colder than -20. Also, where I use 1/4" fittings is because I dont have any other 3/8 adapters on hand.

My issue is that my solvent is freezing somewhere. After putting it together and making sure it holds pressure and windex tested it I decided to clean my solvent and get the little particles my compressor may have left in it. I open the BV to let the IC69 fill up, give it 3-4 mins to completely fill and chill (it holds 1.25lbs when its full). I start a test run (with no material tube) by opening the ball valve on the cap of the material column to let out 7 lbs of solvent to see NO drop in the holding tank weight. Not even one digit dropped.

So I close the ball valve on the solvent tank so I can gauge how much I recover to get more insight of whats going on, I recovered about a half lb. That leads me to believe my 1/4" fittings are not the hold up. It seems like its happenning at a point in the coil, but why? Could it be because the goon that welded my pot made the last 3 feet go in an upward direction for 3/4 of the last coil before it makes its way out of the pot.
Can you tell me where my issue is? how is it freezing so bad that I use 100 PSI of pressure and it doesnt do shit for 5 mins til the solvent thaws enough to let loose and shoot liquid butane everywhere.
Should I bother getting the proper adapters to omit the 1/4 or should I just put that IC69 aside and buy one with 1/2" coil and fittings?

1/4" is unsuitable for subzero butane, because of how high its viscosity gets.

We use 1/2" on our injection coils.

 

[SkyHighLer]

Everything you wanted to know about everything,

http://summit-research.tech/p/treasure-chest

Is this from some known authority?

 

[Old Gold]

What a load of... :

 

[A6 Grower]

Theres some things in there that are kinda out there. BUT there is a ton of great info in there that its defiantly worth a read

 

[Old Gold]

It is worth a read, but holy cow, how much slander, name calling, and "I'm the closed loop God and you are all my lesser copycats" can I take? Not much.. That's a waste of my time.

Too much "THIS IS HOW IT IS DONE PERIOD." when I can debate them easily.....handling live resin and moisture....use of 1/4" copper coils...
I skimmed it, but got caught up in this guy's fucking ego trip.