What causes oil emulsification in the pump body?
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The oil in the oil tank of our pump body is emulsified. What may be the cause?
There may be water in it. The original poster will go back and check all possible points where water may have entered. It shouldn't be difficult to find out. Such as bearing water retaining rings, air holes on the bearing box, etc.
1. In actual operation, the operator's wrong practice of flushing the pump head with water is the most likely cause of water intrusion into the bearing box. 2. Secondly, it is necessary to ensure that the pump shaft seal is intact. If the pump itself leaks liquid, it is easy for the liquid to be mixed into the bearing box. 3. There is something wrong with the quality of the engine oil itself. If the quality is not up to standard or it has been used for too long.
A similar situation happened to us, water got in!
Our factory uses diaphragm pumps, and oil emulsification always occurs. There are two reasons for this. One is that the humidity of the air is too high, the pump itself is not sealed well, and moisture in the air enters. The other is that the pump itself is not sealed well, and water enters due to rain or other reasons.
Most of the ones I have seen have poor sealing, and there is a high possibility of water intrusion. I have never encountered oil quality problems.
1. Bearing water retaining ring 2. Air hole on the bearing box. In actual operation, the operator's wrong practice of flushing the pump head with water is the most likely cause of water intrusion into the bearing box. I have been exposed to it many times on site. The operator flushes the pump with water and cleans it.
There are many reasons why the lubricating oil in the pump is emulsified. First, because the oil has not been changed for too long, there are too many impurities in the bearing box. The second is due to water intrusion. There are several reasons for water intrusion.: 1. If the bearing box has a water jacket, will there be leakage? 2. Is the oil inlet on the top of the bearing box filled with water? After the cause is found, the original bearing box must be cleaned and purged with purifying air or nitrogen, and then re-oiled.
Maybe water got in； Or the oil has not been changed for a long time ； Or the bearing is caused by long-term heat.