Re: Sugar Solution + Ammonia
No body had have this kind of problem???
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
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 :rolleyes: .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:eek:
So it is a good bad experience
Gwapa
Re: Sugar Solution + Ammonia
how does the syrup get into the system, is the carbo-cooler leaking?
Re: Sugar Solution + Ammonia
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.
Re: Sugar Solution + Ammonia
michaelm
I appreciate it very much your information
Re: Sugar Solution + Ammonia