Results 1 to 8 of 8
  1. #1
    Join Date
    Sep 2006
    Location
    Venezuela
    Posts
    259
    Rep Power
    18

    Sugar Solution + Ammonia



    It is a brown Soft drink bottling shop
    For some reason the solution of Sugar -Water leak to the ammonia system
    The sugar water solution+ ammonia formed some kind of caramel
    This product reaches the compressor and destroys some of those. Piston ,Piston ring ,crankshaft etc.

    The solution is a product very dark brown. As it reach the ammonia trap the float switch sticks out and lock. That made that the high level alarm and stop compressor switch did not work.


    Now the plant is stopped
    Some question which I like share with you all
    1. As soon we opened the PHE ,which we think the plate are damaged , all the plates were clean no product. All the product (caramel) was in suction line, tramp and compressor?
    2. What will be the procedure to clean up all the system ?
    3. Do you have some chemical literature of the mixture of sugar water solution with ammonia?
    4. How we can detect some kind of leaks? Do you have some recommendation about conductimeter or refractometer to predict this kind of problems?
    I appreciate your very kind coments
    Regards
    Gwapa



  2. #2
    Join Date
    Sep 2006
    Location
    Venezuela
    Posts
    259
    Rep Power
    18

    Re: Sugar Solution + Ammonia

    No body had have this kind of problem???

  3. #3
    Join Date
    May 2007
    Location
    Auckland
    Age
    74
    Posts
    3,362
    Rep Power
    37

    Re: Sugar Solution + Ammonia

    Gwapa
    It would seem the refrigeration circuit pressure is lower than the product pressure to get the product entering the ammonia circuit.
    The product has solidified/frozen and burst into the refrig circuit.
    The problem is the suction pressure of ammonia plant is too cold, raise the control pressure set point, or better still install a evaporator pressure regulator to PHE

  4. #4
    Join Date
    Sep 2006
    Location
    Venezuela
    Posts
    259
    Rep Power
    18

    Re: Sugar Solution + Ammonia

    thanks Magoo
    You know after the syrup get inside the ammonia circuit the problem is very big.
    ou has to stop de plant a wash down al the ammonia circuit with water .It is the only sustance to disolve the syrup. Then you have to chenge filters, chenge compressors oil and make a lot of pressure test.
    I found the a PHE has a capacity 200 Tr but it was running at 100 Tr .The suction valve (BPR) was selected for 200Tr so it is to big for the ormal running. Thereare not a small bypass BPR
    So it is a good bad experience
    Gwapa

  5. #5
    nick_s's Avatar
    nick_s Guest

    Re: Sugar Solution + Ammonia

    how does the syrup get into the system, is the carbo-cooler leaking?

  6. #6
    Join Date
    Apr 2008
    Location
    canada
    Age
    75
    Posts
    95
    Rep Power
    16

    Re: Sugar Solution + Ammonia

    B”H
    Usually in food application secondary loop system is used to protect the refrigeration side. Of course the efficiency is not the same but in case as your customer would prefer less efficient system after all. The conductivity meter would be complicated matter. If you install it on the ammonia site (first of all it should be with tem-re compensation) it should have the same properties (refrigerant + oil) and probably at different tem-re is not going to be the same. On the product side it will probably cover the probe with the product and will not give you what you need. I will send you the conductivity meters models we use. I do have it in the office.

  7. #7
    Join Date
    Sep 2006
    Location
    Venezuela
    Posts
    259
    Rep Power
    18

    Re: Sugar Solution + Ammonia

    michaelm
    I appreciate it very much your information

  8. #8
    Join Date
    Apr 2008
    Location
    canada
    Age
    75
    Posts
    95
    Rep Power
    16

    Re: Sugar Solution + Ammonia


Similar Threads

  1. Rust in Ammonia Compressor???
    By lonestar in forum Trouble Shooting
    Replies: 11
    Last Post: 31-07-2009, 12:53 PM
  2. Want to be trained as an ammonia operator
    By Randy Williams in forum NH3
    Replies: 7
    Last Post: 26-11-2008, 09:15 PM
  3. Replies: 21
    Last Post: 03-02-2008, 06:10 PM
  4. Ammonia and CO2 reactor
    By gwapa in forum NH3
    Replies: 18
    Last Post: 07-01-2007, 05:50 PM
  5. New Ammonia Certification in United States
    By JerrydNH3 in forum NH3
    Replies: 11
    Last Post: 15-08-2006, 03:10 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •