Problems with the ammonia compressor oil station
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Our ammonia compressor (commonly known as a chiller) is manufactured by Shengli Heavy Industry. Recently, there has been a problem of the liquid level in the tank continuously dropping. At first, we thought it was caused by a leak in the oil cooler, but even after switching to another oil cooler, the liquid level continued to drop rapidly. We analyzed the water at the inlet and outlet of the oil cooler and found no signs of leakage. There are only a few spots where oil drips from the chiller, but it’s impossible for the oil level in the tank to drop that fast – almost a whole barrel of oil is lost per day. Could someone please help analyze what could be the cause? Where did all the oil go?
If there is no external leakage, it is an internal leakage; check the sealing system and the level of oil in the ammonia.
Could it be that the steam leaking from the comb seal of the turbine has condensed into water inside the condenser?
Is it the excessive cooking fumes that blew it away?
That’s an exaggeration; to turn a bucket of oil into cooking fumes in one day, how much smoke would have to be produced? . . .
The oil cooler’s cooling effect is too poor; the oil isn’t separated thoroughly. Pay attention to whether there are any changes in the liquid level of the small ammonia tank!
It’s not a small ice machine; I’m talking about the large ice machines produced by Shenmu, not the small ones made by Wuleng. . .
If the possibility of external leakage can be ruled out, the focus may shift to the dry gas seal, to check whether the drain lines at the bottom of the dry gas seal as well as the operation of the isolation gas are functioning properly.
The drain drainage is normal, and the dry gas seal is normal. . .
If that is the case, it is recommended to compare the parameters at various points before significant oil loss with those at present (under the same load), including the bearing temperature and the oil return temperature at each point, in order to conduct a systematic investigation.
Dry gas seal issues? Or check how much oil is stored in the liquid ammonia tank.