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Building Subzero pumpstation

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Pulse88
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Building Subzero pumpstation

Post #1 by Pulse88 » Sun Aug 23, 2015 8:22 pm

Since i have been quiet here some time the reason was that i have been working on my pump station. :mrgreen:

The goal of this pumpstation is to get -20 water temps and colder.

hardware:

3x 25-60 ups grundfos 230v pumps
stainless steel tank 13liter
cooper pipes 12mm,22mm, cranes etc quick realise connections
frame for the station


Anyway things that are done is tank and the beginning of frame for the pumpstation.

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Frame welded of some junk steel in company garage. Places of wheels will change of the final thing nead to get them out wider to support better weight and balance.

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A pic where tank should be when its done. Will paint the frame black later. The tank will be covered with 10mm arma flex.

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A pic of stainless steel tank, 3 pumps copper pipes cranes etc in plastic bags. The Hx is not for this build but will likly be in some project in the future. (It is a 30 plate Hx that can take 40Kw heat with 70 degress delta on warm/cold side it can also take extreme pressures 250+ bars) . A monster :mrgreen:

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A closer pic of pumps steel housing for higher pressure. Magnetic impellor = No heat in chilled Loop

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A pump curve with one 25-60 grundfos with 20 degress water. I will have 3 of them in pump station.


Another project i have done under this weekend is milling copper. Begging of what will be a gpu only block for dual pcb cards like Gtx 295 etc. I will be doing two blocks.

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Eatch piece of copper have great mass and a design that should give high flowrate for chilled water. Its mass is 2.5-3x more than Ek universal gpu block :mrgreen: . Channels is 4mm wide for greater flowrate = better for very cold fluid.
Material that should be in between the copper cold plates is Lexan. Lexan is expensive but the best plastic when it comes to strenght (pressure) and high cold resistance. A plus is that it it is easy to mill and drill.
Best plastic material but with one downside its very expensive.

Will update more when i have time to build some more. Sadly this things takes a lot of time. :roll:
Last edited by Pulse88 on Tue Aug 25, 2015 10:46 pm, edited 1 time in total.



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Hivizman
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Re: Building Subzero pumpstation

Post #2 by Hivizman » Mon Aug 24, 2015 8:13 am

Looking forward to seeing your build log.
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Keep your nuts safe


There is a forgotten, nay almost forbidden word, which means more to me than any other. That word is England.
Sir Winston Churchill

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meankeys
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Re: Building Subzero pumpstation

Post #3 by meankeys » Mon Aug 24, 2015 9:48 am

Yeah Pulse88 Looking forward to some pics.
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nickolp1974
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Re: Building Subzero pumpstation

Post #4 by nickolp1974 » Mon Aug 24, 2015 5:53 pm

Nice one mate should be good!! Cant wait to see pics ;)
What happened with your cascade?? Did you get your deposit back off Dimastech or are they still gonna build it?
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Pulse88
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Re: Building Subzero pumpstation

Post #5 by Pulse88 » Mon Aug 24, 2015 9:18 pm

Have been milling on some gtx 295 dual pcb blocks today. I se if i can get pics tomorrow over the beginning of the pump station.
And if lucky some copper dubble sided gpu only blocks for 2 gtx 295. :mrgreen:



@Nick

They are building on the cascade now.

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ScunnyUK
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Re: Building Subzero pumpstation

Post #6 by ScunnyUK » Tue Aug 25, 2015 2:04 pm

Sounds like this is gonna be good 8-) ""patiently awaits piccys"" :ugeek:

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Pulse88
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Re: Building Subzero pumpstation

Post #7 by Pulse88 » Tue Aug 25, 2015 10:47 pm

First Post updated with some pics ;)

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nickolp1974
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Re: Building Subzero pumpstation

Post #8 by nickolp1974 » Wed Aug 26, 2015 7:53 am

Looking great Isak and impresive milling mate. I love things like this as it just shows commitment to there hobby and wanting to take things to the next leval, fantastic ;)
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Pulse88
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Re: Building Subzero pumpstation

Post #9 by Pulse88 » Mon Sep 14, 2015 11:15 pm

Thanks Nick

One block is nearly done(only drilling holes in block for the card attachment )
Will post some pics of gpu block made for gtx 295 dual pcb etc tomorrow.
Pressure test showed 8 bar/ 18 degress water no leak. likly a little overkill for chilled pc loop tho :mrgreen:

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Pulse88
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Re: Building Subzero pumpstation

Post #10 by Pulse88 » Sun Sep 20, 2015 1:04 pm

ok first block is done as unisink. For the people who like to build gpu only block for dual pcb 295 with a unisink from card right thickness of block should be 22mm.

Some pics

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Block is tested for 8bar at 18 degress temp (No leak)

Down side of this is it takes time to mill out all so it work ( bock and unisink)

Lapping is left for the coldplates.


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