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Thread: Modulating Auto Draw-off

  1. #11
    Join Date
    May 2002
    Location
    Lebanon, IN
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    291

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    2020 would be great, thanks. If there's no easy way to post it you can send it to me at eskimoin@gmail.com
    Thanks!
    Doug
    Maple Creations
    Coatesville, IN
    350 taps on 5/16 tubing & 4 Lunchbox pumps
    MemProTec Concentrator 300 RO
    Wood-fired 30"x8' D&G Model 500 raised-flue w/Steam hood & blower
    Smoky Lake finisher, D&G filter press,
    http://www.facebook.com/maplecreations

  2. #12
    Join Date
    Dec 2007
    Location
    Minot,Maine
    Posts
    197

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    Here is a little video of the first draw off. Still need to learn a bit and I should probably run it through auto tune but it works!

    https://www.youtube.com/watch?v=KRfbdrPbHCQ
    2013 135 Taps 35 on Gravity, 100 on Buckets 11 Gallons Made
    2014 310 Taps 75 on Sureflo 4048, 235 on Buckets, 16'x16' Sugarshack, 5" Filter Press, 2x6 Smoky Lake Hybrid Pan (SOLD) 23 Gallons made
    2015 315 Taps, 17 on Sureflo 4008, 62 on Sureflo 4048, 236 on Buckets 31.25 Gallons Made
    2016 New Northwoods Stainless Finisher and Steamhood
    2017 325 Taps 34 Gallons Made
    2018 150 Taps New Northwoods Stainless 2x6 Raised Flue w/ Air Tight Arch 40+ Gallons Made

  3. #13
    Join Date
    Apr 2016
    Location
    Mapleton Twp, SW Ontario
    Posts
    361

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    Quote Originally Posted by BRL View Post
    Here is a little video of the first draw off. Still need to learn a bit and I should probably run it through auto tune but it works!

    https://www.youtube.com/watch?v=KRfbdrPbHCQ
    Id be very interested to hear about your progress.... and how you've programmed the PID.. I've been daydreaming about building one of these recently.... Trying to decide between PID and a simple on-off. My only experience with PID controllers was on a plastic extruder...(running valves for cooling lines and electric heaters) From what I remember, it worked very well when things were running consistently... but if there was an unusual change in the process, EG. stopped the extruder for a few minutes to do a screen-change, etc... (which would eliminate friction heat for a time),,, it would over-cool and take a long time for the controller to get things figured out again... Could be that we just didn't have things programmed properly?? I've been wondering if an auto draw off would have the same sort of issues if I was late with loading wood, etc... Thanks for the update... I look forward to more...

  4. #14
    Join Date
    Mar 2015
    Location
    Wisconsin
    Posts
    4

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    Any updates on this? It would be great if you could post some more pictures and the wire schematic is very fuzzy. If you wouldn’t mind emailing me the schematic in a larger former I would appreciate it! My email is sam2145871@hotmail.com. Thank you!

    ***Edit- I also forgot to ask exactly which PID did you buy? There are three choices and I’m not sure if the RS-485 communication or the SSR features are useful or needed for this. Thanks again.

    Marcus
    Last edited by sam2145871; 04-01-2020 at 08:40 AM. Reason: Forgot a question

  5. #15
    Join Date
    Dec 2007
    Location
    Minot,Maine
    Posts
    197

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    Hey Marcus, the model is SYL-2381-mA. Should be the first option in the drop down menu. I'll send you some info when I get a second.
    2013 135 Taps 35 on Gravity, 100 on Buckets 11 Gallons Made
    2014 310 Taps 75 on Sureflo 4048, 235 on Buckets, 16'x16' Sugarshack, 5" Filter Press, 2x6 Smoky Lake Hybrid Pan (SOLD) 23 Gallons made
    2015 315 Taps, 17 on Sureflo 4008, 62 on Sureflo 4048, 236 on Buckets 31.25 Gallons Made
    2016 New Northwoods Stainless Finisher and Steamhood
    2017 325 Taps 34 Gallons Made
    2018 150 Taps New Northwoods Stainless 2x6 Raised Flue w/ Air Tight Arch 40+ Gallons Made

  6. #16
    Join Date
    Aug 2018
    Location
    Sorel-Tracy,QC,Canada
    Posts
    4

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    Hello, Could you give us PID parameters ? Thanks!!

  7. #17
    Join Date
    Mar 2011
    Location
    North Grenville, Ontario
    Posts
    969

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    What did you end up using for a bracket to secure the valve actuator ? And did you have to get an extension for the butterfly valve shaft ?
    600 taps on vacuum
    Lapierre mechanical Releaser
    CDL electric releaser
    2.5 x 10 CDL Venturi ( new for the 2024 season )
    Home made modulating auto draw off
    Homemade RO 2 x 4" membranes
    CDL 16 x 16 bottler
    Wesfab 7" filter press
    Delaval 73 vacuum pumps

    12 hives of bees

  8. #18
    Join Date
    Mar 2011
    Location
    North Grenville, Ontario
    Posts
    969

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    Been working on changing my auto draw to a modulating auto draw.
    I’ve pretty much got it done. Just waiting on a couple parts to arrive.
    I went with the belimo actuator and butterfly valve but if one wanted to save money you could buy a motorized ball valve on Amazon. (5 wire ) and the auber PID will still operate it the same as a belimo.
    One good thing about the motorized ball valves is that they have capacitor return. The belimo valve is a fail in place actuator. So if you lost power while drawing off. Your valve would stay open and not close untill power was restored.
    600 taps on vacuum
    Lapierre mechanical Releaser
    CDL electric releaser
    2.5 x 10 CDL Venturi ( new for the 2024 season )
    Home made modulating auto draw off
    Homemade RO 2 x 4" membranes
    CDL 16 x 16 bottler
    Wesfab 7" filter press
    Delaval 73 vacuum pumps

    12 hives of bees

  9. #19
    Join Date
    Jul 2012
    Location
    Lawrence County Ohio
    Posts
    350

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    Bricklayer,

    How did you attach the Belimo valve to the butterfly valve? I have butterfly valves connecting my flue pan to dyrup pans, but you have to pull the lever out to turn them. I'm sure they make a butterfly valve without the lever lock, and I saw you asked the same question to the OP. I am diving into this project this year. I appreciate any info.
    '12 15 jugs - Steam pans
    '17 125 3/16 - 18" x 72" drop flue on homemade arch
    '18 240 3/16 - Deer Run 125
    '19 450 3/16 - Converted RO to electric/added a membrane
    '20 600 3/16 - Maple Pro 2x6 Raised Flue, added AOF/AUF
    '21 570 3/16 - Built steam hood, Smoky Lake filter press
    '22 800 3/16 - Upgraded RO to 4 4x40
    '23 500 3/16 - Re-plumbed RO, new "Guzzler"
    '24 500 3/16 - Steam Away, DIY 8x40 RO

  10. #20
    Join Date
    Mar 2011
    Location
    North Grenville, Ontario
    Posts
    969

    Default

    I had to take the valve to a machine shop and get them to weld the handle in the pulled out position and then weld an extension on top of the valve handle for the belimo to attach to.
    I could not for the life of me figure out a way to attach the belimo to the valve. So I ordered the bracket from CDL that bolts right to the valve. Was like $60. Havnt had time to put it all together yet. Going to be my fall/winter project.
    600 taps on vacuum
    Lapierre mechanical Releaser
    CDL electric releaser
    2.5 x 10 CDL Venturi ( new for the 2024 season )
    Home made modulating auto draw off
    Homemade RO 2 x 4" membranes
    CDL 16 x 16 bottler
    Wesfab 7" filter press
    Delaval 73 vacuum pumps

    12 hives of bees

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