Tek Evaporation Chamber - build thread

[CrazyDiamond]

Sorry mods, the 6 hour window expired...please merge if possible.

Guys...I'm trying to figure out a fan to get for this...please give me some suggestions, especially to how much cfm I should have.

I'm thinking an inline would be best because I can just have tubing on both sides; one side can easily be connected to a filter box and the other side, a short tube section to the backdraft damper and from there to the Evap Box. I may not have time today to do a visio diagram; I have to physically move a bunch of vmware host servers and their SAN's to another datacenter today.

 

[2clicker]

Sorry mods, the 6 hour window expired...please merge if possible.

Guys...I'm trying to figure out a fan to get for this...please give me some suggestions, especially to how much cfm I should have.

I'm thinking an inline would be best because I can just have tubing on both sides; one side can easily be connected to a filter box and the other side, a short tube section to the backdraft damper and from there to the Evap Box. I may not have time today to do a visio diagram; I have to physically move a bunch of vmware host servers and their SAN's to another datacenter today.

choosing the correct fan/motor was what made me stop with this idea. i read and researched so much different shit it fried my brain. there are obvious choices out there if you are ok spending hundreds tho.

 

[CrazyDiamond]

Ya I see hundreds for the explosion proof one's but I really believe that an explosion proof fan is not needed with all the additional safety things (the backdraft dampers, fusing the fan on it's own fuse)...I might even try to find a way that I can have clear tubing so I can see the backdraft dampers working or maybe some sort of sensor. Regardless, I will be sitting there with it while it does it thing...I will never leave it unattended.

What do you think?

If yes, and again, I do not and will not hold you or @Puffers responsible for anything, what would be a max cfm that you'd want to see? I found this on amazon with a quick search (I'm sure more thorough searching can yield even better results..
http://www.amazon.com/Tjernlund-M-4...fan+variable+speed#product-description-iframe
It says it's variable speed; I think it would be key to get something that I can control airflow speed.

 

[farscaper]

ok... excuse me for being overwhelmed with all that is in the tread... allow me to see if I follow...

effectively trying to create a closed environment with which to evaporate alcohols...

is the purpose just to speed evaporation time? cause I have found a fan blowing directly onto the face of the purge area to be the most effective. it keeps the surface disturbed which speeds evaporation more than heat does!


I see another use...

removing the solvent from the extract and your home.

I know thats why alot of people choose alcohols is because of the idea its safer to evap inside.

but by adding an extraction fan to the process would purge the solvent tainted air from your home.

sorry if I have what this thread is about confused... in which case please disregard my drivel.

 

[2clicker]

ok... excuse me for being overwhelmed with all that is in the tread... allow me to see if I follow...

effectively trying to create a closed environment with which to evaporate alcohols...

is the purpose just to speed evaporation time? cause I have found a fan blowing directly onto the face of the purge area to be the most effective. it keeps the surface disturbed which speeds evaporation more than heat does!


I see another use...

removing the solvent from the extract and your home.

I know thats why alot of people choose alcohols is because of the idea its safer to evap inside.

but by adding an extraction fan to the process would purge the solvent tainted air from your home.

sorry if I have what this thread is about confused... in which case please disregard my drivel.

mostly to eliminate heat, speed the evap, and contain everything. using a fan def works great pointed at a dish, but a "wind tunnel" would evap considerably faster i would think.

 

[farscaper]

mostly to eliminate heat, speed the evap, and contain everything. using a fan def works great pointed at a dish, but a "wind tunnel" would evap considerably faster i would think.

I agree but if the fan is suspended above the dish with air pointed down into the dish the fan will create the most surface disturbance.

combine that with a small 4" duct blower (with an air intake filter to prevent particles being sucked )

you can then basically pipe that noxious solvent vapor anywhere...

provided there is enough positive pressure to push air the pc fan over the dish will never be in contact with solvent any longer than a plain environmental evaporation... because you are constantly pumping in fresh air.

so yes it will speed the process and eliminate the fumes which we worry about...

this would also work with butane too!

Just have to post evap purge.

 

[2clicker]

well i suppose we all have our work cut out for ourselves eh?

welcome aboard @farscaper!

 

[farscaper]

well i suppose we all have our work cut out for ourselves eh?

welcome aboard @farscaper!

should I toss together a demo model? I believe I have all the parts....

 

[2clicker]

should I toss together a demo model? I believe I have all the parts....

if you have the means absolutely!

 

[farscaper]

keeping the box small will aid in keeping good positive pressure with a small fan like this. otherwise you end up with a wonderful pressure baffle... so that 4" duct can be placed in a window and the solvent fumes will escape via that.

 

[2clicker]

nice! will you be trying it?

 

[farscaper]

nice! will you be trying it?

at some point yes. dont have anything to evaporate atm... but it functions fine. gotta put something on the lid to hold it down... I would like to install a dust guard on the duct fan but if kept clean its not a huge issue.

 

[2clicker]

at some point yes. dont have anything to evaporate atm... but it functions fine. gotta put something on the lid to hold it down... I would like to install a dust guard on the duct fan but if kept clean its not a huge issue.

i envisioned building the box from clear plexi. so you can view the progress easily w/out opening it. and originally i thought the lid should be sealed, but i suppose this wouldnt be necessary. neither of these really. you could just pop the lid off quickly and take a look.

 

[farscaper]

i envisioned building the box from clear plexi. so you can view the progress easily w/out opening it. and originally i thought the lid should be sealed, but i suppose this wouldnt be necessary. neither of these really. you could just pop the lid off quickly and take a look.

this was a 10 minute prototype lol.. I had this stuff laying around and just tossed it together so there would be a visual representation in the thread.

I think that you could use a plastic tub. again since there is no still air there isnt any solvent coming on contact eith the chamber and then re contacting the oil... so what its made out of seems moot imo... but that cardboard wont hold up forever!

I think it would be really sharp looking to have it made of wood with a clear lid!

the hose can be accordion folded up and stored in the box and if it was a longer box you could also recess the fan so that it could have a filter slide over the fresh air intake.

you could even get really handy and suspend the downdraft fan from the underside of the lid so you dont have to ever touch it!

there is alot of positive pressure loss through the holes and such which hinders its ability to push air down the 4" duct. sealing the box will fix that.

 

[DieHard]

Nice Capital n-tane box evap chamber!

 

[Puffers]

@farscaper
Thanks for throwing that together, the smallest fan I had laying around was a 3/4 hp scroll cage that even on low speed moves probably 800 cfm. My chamber would have to be refrigerator sized..... Although that could have some bad ass perks to it. I could throw some 18" bag filters on it for hepa filtration

 

[syrupy]

A fan speed controller might be useful for this application, to allow tuning of the rate of evaporation. Also, a good hepa filter on the inlet side will help with contaminants. For something as concentrated as oil, I wouldn't trust standard furnace-type filters. I've been considering a speed-stepped 4" inline fan with carbon pre-filter/filter:

Pre-filter > Filter > Fan > Speed Control > Duct > Chamber > Outside duct


I'm probably confused, but wouldn't positive pressure encourage fume leaks?

 

[farscaper]

@DieHard ha ha ha you would know bro!

@Puffers you could evap a 55gallon drum with a squirrelcage!

I have a 4" centrifugal fan but that would need a speed controler too... they move serious air like a jet turbine!

and yes as I said it will leak fumes and lose pressure if you use a cardboard box........

 

[2clicker]

this was a 10 minute prototype lol.. I had this stuff laying around and just tossed it together so there would be a visual representation in the thread.

I think that you could use a plastic tub. again since there is no still air there isnt any solvent coming on contact eith the chamber and then re contacting the oil... so what its made out of seems moot imo... but that cardboard wont hold up forever!

I think it would be really sharp looking to have it made of wood with a clear lid

oh i knew this was a crude prototype. i was just thinking out loud.

good to see this thread gain some steam.

 

[farscaper]

you know... the exhaust could also simply be piped into a swamp filter box with wet sheets or towels) to neutralize the alcohol vapor.... so you dont have to crack a window and have a funny hose running out it.... not positive it will work... but I am hypothesizing...

 

[2clicker]

you know... the exhaust could also simply be piped into a swamp filter box with wet sheets or towels) to neutralize the alcohol vapor.... so you dont have to crack a window and have a funny hose running out it.... not positive it will work... but I am hypothesizing...

interesting. what about just having the wet fabric as a filter right where the fumes exit the box? instead of having any duct at all? you could build it into the box and frame the fabric so it slides in and out easily. i am not experienced with these types of filters so i dont know if this would work. sounds cool.

in my case i am evapping small amounts of ethanol. would the wet towel filter work well for ethanol fumes?

 

[farscaper]

interesting. what about just having the wet fabric as a filter right where the fumes exit the box? instead of having any duct at all? you could build it into the box and frame the fabric so it slides in and out easily. i am not experienced with these types of filters so i dont know if this would work. sounds cool.

in my case i am evapping small amounts of ethanol. would the wet towel filter work well for ethanol fumes?

actually ethanol was what I meant... I think that might be possible it depends on if its a matter of containing heavier vapor molecules or is it a matter of scrubbing the air of it.

you could always filter scrub with carbon... a bit more costly but it will also eliminate and cannabis smell... just wet green would be all you might notice.

this is a rather seriously strethed hypothesis so do keep in mind it may not work...

but if you are familiar with thst old wet a towel and hold it over your face while escaping a burning building its obveiously a functional filter!

but will it bed down that ethanol vapor...

it should be easy to test... just stick a dish of alcohol in a box with a fan to evap it blowing inside on the dish and cover it with a wet sheet... then start sniffing... I have 91 iso ... if it can contain that odor it should be able to handle eth.

 

[CrazyDiamond]

Ok here's what I came up with drawing wise...I can easily modify it if you guys want me to add/change things on it. Please let me know what you think of the fan I asked about earlier...here is the link again
http://www.amazon.com/Tjernlund-M-4-Metal-Inline-Duct/dp/B008CI55F2/ref=sr_1_1?ie=UTF8&qid=1411672463&sr=8-1&keywords=4 inch inline duct fan variable speed#product-description-iframe
I don't know if that fan has a built in speed control or if a module needs to purchased separately.
Here is the diagram

I need some help for ideas for the incoming filter...heh, I was thinking about slapping a K&N cold air intake filter on it...but I know you guys can come up with better. I'm a little sketched out having a PC fan right over the dish. You will notice that I have the air coming in the top of the box and the outflow going out the bottom of the box. This configuration should push/pull the air stream right over the top of the solution. I went with bigger diameter out to try and further prevent any backflow.
Edit:
Maybe this for an out filter? http://www.amazon.com/Ventech-Hydroponic-Charcoal-Scrubber-Filter/dp/B005KMLHC8/ref=sr_1_2?s=home-garden&ie=UTF8&qid=1412095960&sr=1-2&keywords=6 inch carbon filter

Additional thoughts/ideas?

 

[farscaper]

@CrazyDiamond you need a speed controller for that fan
https://www.1000bulbs.com/product/91569/GROW-ACSC.html?utm_source=SmartFeedGoogleBase&utm_medium=Shopping&utm_term=GROW-ACSC&utm_content=Fan Speed Controllers&utm_campaign=SmartFeedGoogleBaseShopping&gclid=CPqiyq62icECFadj7AodpyEAtg

and you need a good inline hepa filter for your intake.

https://www.1000bulbs.com/product/98113/GROW-IGS4HEPA.html?utm_source=SmartFeedGoogleBase&utm_medium=Shopping&utm_term=GROW-IGS4HEPA&utm_content=Organic Air HEPA&utm_campaign=SmartFeedGoogleBaseShopping&gclid=CMX_p563icECFeJF7AodKFYAUA

and fuck it... carbon scrub that exhaust!

https://www.1000bulbs.com/category/igs-odor-control/

I really like this one... lol dreaming.

https://www.1000bulbs.com/category/air-box-in-line-filters/

.....


.... yup... you better just get a nice hps and aircooled hood too. or an led panel... tehehe

on a serious note. if carbon scrubbing is ideal for you there are easy cheap diy scrubbers you can build and be able to cusomize and refill. carbon diminishes faster in presence of moisture.

 

[CrazyDiamond]

Heh, that's the thing, I don't know what would be best. Yes, I am in a high humidity area, but if all the windows stay shut the A/C is on and the humidity goes down because of that. This is why in my diagram notes, I mention maybe an alcohol reclaim on the output. Bottom line, I would love to do this closed window so my nectar and myself, stay cool and dry and the fumes get vented/absorbed/reclaimed, whichever we feel is best.

That HEPA filter looks like a K&N filter for the car, lol. Also, would those odor control ones remove/absorb the fumes?