The problem of foam formation in lubricating oil for reciprocating air compressors
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One of the air compressors in our facility starts producing a lot of foam after oil replacement. Repeated attempts to find the cause failed to resolve the issue. The details are as follows: After changing the oil in the air compressor, before it was started up, and just a few minutes after the gear oil pump was turned on, the crankcase was filled with foam. The same oil was added to another air compressor, but no foam was produced. Replacing the gear oil pump from another machine on this one didn’t work either; replacing the oil cooler with a new one was also ineffective. The filters have been checked, and there are no leaks in the pipelines. How can this be solved?
Does \"the same oil\" refer to oil from the same batch, or does it mean transferring foam oil to another unit? Sometimes, the same oil can be different as long as it’s not in the same tank! Why not try changing the oil again?
There must be water; take a sample of the oil in the compressor crankcase from the bubble film and analyze it to determine its composition, proceeding step by step.
Whether it is oil from the same batch or foam oil added to another unit, no more foaming occurs; tests conducted by relevant departments have shown that the foam oil contains no water. What on earth is going on? Waiting online!
Air or water leakage. However, the possibility of leakage is a bit higher. . We have had this kind of thing happen. Later, it was found that there was water at the bottom of the lubricant station. Check the lubricant station as well and have it analyzed.
There is air leakage; the gas in the oil is pressurized by the gear pump and reaches the crosshead. When looking at the oil through the sight glass, foam can be seen, so it is necessary to check where in the oil system the leakage is occurring.
The foam oil has been tested and contains no water; there must be a leak, but the problem is that it’s not possible to locate the source of the leak
The air compressor hasn’t been started yet; only the oil pump is running. It doesn’t seem to be related to the packing