Those in the refrigeration field, please come in.
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We were originally involved in distillation, but now, due to a shortage of staff, the company’s management has assigned us the refrigeration tasks as well! It turns out that cooling was not done before; now I’m completely confused! There’s a problem with the chilled brine system at the moment; there are issues with its design. It’s a closed-loop system that supplies water to three workshops, with the highest floor reaching 45 meters. I’m not sure whether there’s leakage in this system or if it simply isn’t filled properly. The inlet pressure is currently 0.3 MPa, while the pressure at the outlet of the booster pump is 0.4 MPa. Water is added to the system on a daily basis, and the pressure rises slightly after that, reaching 0.5 MPa, but it drops again after a day. Could anyone help me figure out what’s causing this? Does anyone else have QQ groups related to refrigeration technology? Please share a few so I can join and learn from those with more experience! Everyone should speak up actively! Thank you so much!
This is the chilled saline system; please check to see where there are leaks in the pipes, or which valves are open incorrectly. One of our users opened the pipeline valve incorrectly, and the chilled brine flowed into another system, traveling along the pipes.
In the chemical industry, there are some processes in which chilled water is not only used for cooling purposes, but also as a raw material; please check carefully, OP
Check the saltwater pipeline; it may be corroded and leaking. After each refilling, test the specific gravity of the saltwater
This post was last edited by luodanwsk on 2011-1-5 at 10:50. Here are some personal suggestions: 1. First, remove the air from the pipelines. I’m not sure what your pipelines look like, but generally speaking, if the water leakage isn’t too severe (if it were severe enough, you wouldn’t have posted a question in the first place, haha), the pressure of the pump won’t change. It’s possible that air has entered the system; use the exhaust valve on the pump’s outlet to remove that air, as well as at the highest point in the pipelines. 2. The booster pump you’ve chosen isn’t suitable – flow rate and pressure are inversely related. It’s possible that the current flow rate is too high, which is causing the pressure to drop. You can try reducing the flow rate by closing the pump’s outlet valve slightly, check the current level, and then see if the pressure is within acceptable limits. 3. Missed it. This is the most troublesome part. You can shut down the machine, reduce the pressure in stages, and check for leaks; if there’s a leak, the pressure will drop. The most likely issue is located at the inlet of the pressure pump, so you’ll need to remove the insulation material and examine it carefully. You won’t lose your job this year – there are plenty of tasks waiting for you to do, haha. If you can’t figure it out, ask me again. I believe in myself, and I’m sure you do too
Check all the pipelines right away, and see if the pump’s head pressure is sufficient
Saltwater is a type of refrigerant; it operates in a closed cycle and does not decrease in amount. If water is replenished every day, then from the perspective of water balance, wouldn’t there be some leakage?