Evocade rev 2

[EvoCarlos]

i have copyed this here as its my lates project loads of images folow

well all i can say is i triped over in the workshop and look what happend






and thanks to baz for the 1/2" pipe finnaly finished the hx with modded txv (untested yet)


i just modded the base to fit the sanyo
cut the base and silversolderd on some bolt stub


it fits there nice and the oil sep fits between the to comps still


got rid of that huge accumilator only benifit was it looked good
but it took way to much gas to get it to work right so i came up with this


shot from above with the 2 comps and oil sep in place


filter ! thats it lol


started to make the suction/retun line but felt i'll so came back in

[EvoCarlos]

more done
1st stage is nearlly complete and its very very compact and tidy i think



lagged


hi and low side service port right where i can get them but sh*t the desuper heater pipes go there oh well i think of some thing

finished off the 1st stage tonight and vac'd it down.

some images


moded txv ready for testing


sight glass soon went from yellow to green under vac and heat



the txv bulb charge was @ 7bar but found it would not work well put it down to 2 bar and saw lower temps


well as for mine load testing and charging of the 1st stage and txv bulb is complete (well im happy with it so far) temps may inprove with better lagging

heat loader straped to hx



hx temps under 200w load un lagged

[EvoCarlos]

bit more done but have run out of propain it will ahve to wait till tomorow now

degassed the a/c unkie dave give me thanks dave:p

it all went white for a while

striped the rest of the case away theres a 2 way valve in there i want to use to


new comp in place


and made a new adapter for the oil return on the 2nd stage so i can fit a gage coupller to it



2nd stage is under way
anti vibration coil YEAH!!
hrrrmm the flash was really bright in this image lol
*snip* http://i90.photobucket.com/albums/k2...2/Image051.jpg


edit add image
oil return and cooler

anywho

barron came over today for some working's so i started up the 1st to show him

then went on to complete the 2nd stage as much as i can do really till i get the new evap

the coil for the expantion tank was a bit wobbly as it had been used before so would not bend right


ahh just a couple of things i can do need to drill a hole in the hiside pipe to get a take off for pressure cut off and hiside mano
i might as well install the sution line and hotgas bypass and cap tube

[Duzter]

Are you absolutely sure that that HX is leak free?

I don't like the fact that there have been a flame directly on the plates. That could have ruined the braze between the plates.

[EvoCarlos]

Are you absolutely sure that that HX is leak free?

I don't like the fact that there have been a flame directly on the plates. That could have ruined the braze between the plates.

yep im very sure
why would it be any diffrent from the way it was it did not hurt the 1st one i did
and the hx's are copper brazed copper melts @ 1083.4c silver solder melts @630-660°C

just done the last little bit till i get evap

hot gas cap installed
suction line and hi pressure connection for hp cut off and hiside gage

this was a git to do

hot gas tubey

suction line

[EvoCarlos]

well its here
the evap arived

and a big thanks to duniek for the evap it got here quick :p
just need to get it on the cascade now

some time later

i just had to do somthig phaze this week end so i got the evap ready

drilled and cut for flow and return than sand blasted just to ruff the edges up
you can see i put a large feed pipe thru the side of the suction line in to the center of the evap ive just got to try and find the outer tube than braze it up



and here with a bit of cleaning

going up to sort out a 4ft sution line tomorow if the price is right
lapped and polished

[teyber]

as i said on bt, love it!

[sjg0]

Looks sweet!

On a side note:
Red Bull is the most disgusting energy drink ever. I dont understand how it got passed the FDA, tastes like used motor oil and cat urine.

[Moc]

Looks sweet!

On a side note:
Red Bull is the most disgusting energy drink ever. I dont understand how it got passed the FDA, tastes like used motor oil and cat urine.

Looks really nice .
Red Bull is fine but to expensiv .

[EvoCarlos]

as i said on bt, love it!

Looks sweet!

On a side note:
Red Bull is the most disgusting energy drink ever. I dont understand how it got passed the FDA, tastes like used motor oil and cat urine.

Looks really nice .
Red Bull is fine but to expensiv .

thanks guys
and red bull is great but it is exspensive..

and were back under way
last night i orderd a suction line
@Order Date: 11 February 2009 at 17:33:18
wow there quick its just come lol
had to cut the yellow plastic liner off but it rated @ "Maximum working 70 - bar, burst pressure - 280 bar" best £30 ive spent
oh got some more flux and solder as my flux got damp and causes cack joints well not cack they just look a mess


right ive cut nut and thread off and fitted the evap and brazed it all up then repolished the evap face

[quintus]

Looking good
This is what i was speaking about: http://en.wikipedia.org/wiki/Water_hammer it applies to gases too

[[XC] gomeler]

Looking good
This is what i was speaking about: http://en.wikipedia.org/wiki/Water_hammer it applies to gases too

I think that also happens in lengthy suction lines? I remember a tech mentioning something about waves of oil bashing the compressors? Not positive but definitely not a fun sounding experience.

thanks guys
and red bull is great but it is exspensive..

and were back under way
last night i orderd a suction line
@Order Date: 11 February 2009 at 17:33:18
wow there quick its just come lol
had to cut the yellow plastic liner off but it rated @ "Maximum working 70 - bar, burst pressure - 280 bar" best £30 ive spent
oh got some more flux and solder as my flux got damp and causes cack joints well not cack they just look a mess

Not a bad way to go about doing things. I've considered the same route but I opted for brazing up my own lines instead. That however is much cleaner with the braided steel, I was never able to do it cleanly. Looking forward to seeing this up and running

[EvoCarlos]

Looking good
This is what i was speaking about: http://en.wikipedia.org/wiki/Water_hammer it applies to gases too

thanks quintus

also that link describes it as when a valve is shut down the line creating a pressure build up on the joint causing the fitting/joints to break

to my defence
this will not be applicable to this joint.
the system has already been pressure tested to over 25bar if there was a problem with the joint it would of burst during this test and the system has been run for about 4hours real time now with no sign of immediate problems also there is no shut off valve in the 1st stage apart from the txv that has mop and is never shut fully (and 55% silver solder on all the joints)

lol it may get change'd just for you tho quintus ive got to recover the 1st stage to do the modifcation to the condencer, there is a thread that no has replyed to lol so i,m gona make the changes anyway

[EvoCarlos]

I think that also happens in lengthy suction lines? I remember a tech mentioning something about waves of oil bashing the compressors? Not positive but definitely not a fun sounding experience.



Not a bad way to go about doing things. I've considered the same route but I opted for brazing up my own lines instead. That however is much cleaner with the braided steel, I was never able to do it cleanly. Looking forward to seeing this up and running

well i was trying to get a company to make one but the costs were outragious
a 4ft long 3/8" line with 1/2" 50mm tails was £109

this is an lpg huckup of a traler/caravan
4ft long 1/2" line with some 1/2" bsp fittings all tig welded and ready to run £29 not includeding the shipping

not long now going to do some work on it to night i plan to move the hx and mod the condencer and fit shut of valves to the captube sution line so it will be easy to change the captube lenth simmler to what baz did on cascade6
i hope i did not patent it lol

[EvoCarlos]

and here it is just need to put a pipe on the end

[EvoCarlos]

and now for something compltlly diffrent
well as there was 100's of replys in the condencer convertion thread lol (yeah right) i have done it it looks good
3 1/4" pipes in to 5/8" pipe reduced to 1/2"then 3/8" the joy i've had to Anneal the 5/8 to get it to form the right shape thats why its black in the image

[EvoCarlos]

sand blasted the crap of the condencer ends

lick of silver paint to tidy it up


and this ones just for you quintus
since now i have got some where else to take a hi side port from i made some amendmets

[SexyMF]

How did you pinch the ends of the 3 -> 1 piping

[EvoCarlos]

How did you pinch the ends of the 3 -> 1 piping

hey sexy
i just used plyers and a fat screw driver the pipe was soft due to annealing its kind of like a clover leaf shape

[EvoCarlos]

right so after a while away from evocade
fixing 2 broken springs on my car
but today i decided to do a bit more to the cascade
my new expansion tank, ive found a nice little space right next to the 2nd stage compressor


hrrrm
2 hx's 2 txv's wonder how they would come in usefull


hrrrm 2 oil seps and 3 compressors in one case what can it mean lol

[[XC] gomeler]

What gas is going into the 3rd stage?

[EvoCarlos]

What gas is going into the 3rd stage?

hey gomeler
not sure yet need to make sure i can get it all in the 2 hx's come close to the oil sep and the comp is close to the oil sep but i will need to fit a dsh (old vapo xe condencer) also

but the gas will be anything i can get my hands on for cheap lol

[[XC] gomeler]

You live in the UK correct? There are a few cascade builders out there, I'm sure one wouldn't mind parting with a little R14 in exchange for cash.

[EvoCarlos]

You live in the UK correct? There are a few cascade builders out there, I'm sure one wouldn't mind parting with a little R14 in exchange for cash.

yep im in the uk
i'll have to ask but you might be right
theres other ways to get the temps but it means combing gasses

[EvoCarlos]

change of plan's due to not having any gas to put in a 3rd stage and found a big problem with the 4way valve that will cause issues as its only rated @-20 and the way it was piped in it would see some near -80c temps so have removed it (will have to send dave his pid back gutted!) but the changes are all good

so its a 2 stager again lol (for now)

right first problem solved as i only have one cap tube going to the evap now i had to move the hot gas further back in to the system.
As you can see there's a strainer from the oil sep to the hx filtering any crap and a bit of a make shift inline acc - then the hot gas goes in before the filter but after the hx, this will be slower to respond but will do the same job as it has to clear the cap tube of liqued and so on.....



"he hee! you didn't think bubbles was a munky did yoall"
bubbles,, sight glass's are cool......


and the biggest update on evocade to date its got a name tag........... lol