Hydraulic support emulsified oil frequently shows abnormal symptoms. Is it improper use or different quality?
November 14, 2021
In some hydraulic components, emulsified oil for hydraulic supports is a necessary lubricant. The use of emulsified oil can effectively protect the hydraulic system and prolong its service life. In general, emulsified oil has strong stability and is very stable. There are few abnormal oil products, but improper operation during use can easily cause abnormalities in the emulsified oil of the hydraulic support. This article will explain it for you in detail.
1. The emulsified oil has impurities and is turbid If the hydraulic support emulsified oil appears white and turbid, the possibility of solid impurities or liquid viscous impurities can be eliminated, which can only be caused by water or air. The emulsified oil can be sampled and tested. Drop the oil sample on a hot iron plate. If bubbles appear, it can be determined that the emulsified oil contains water, otherwise the emulsified oil contains air. If the emulsified oil of the hydraulic support is mixed with water to cause turbidity, let the emulsified oil stand for a period of time, let the water sink to the bottom of the emulsified oil tank, and then remove the water. However, if the moisture content is too high to cause the emulsified oil to emulsify, it needs to be replaced with a new emulsified oil. If it is determined that the emulsified oil is mixed with air to cause turbidity, check the hydraulic system pipeline for leaks and cut off the source of air mixing.
2. The oil temperature of emulsified oil is abnormally increased There are three fundamental reasons for the abnormal rise of the emulsified oil temperature of the hydraulic support: First, the pressure setting of the safety valve is too low, so that most of the emulsified oil flows back to the tank through the safety valve, resulting in too low work efficiency of the hydraulic system. If the load is too large, most of the energy will be converted into the heat energy of the emulsified oil, resulting in high temperature: the second is that the temperature of the emulsified oil is too high due to the poor cooling effect of the cooling system, and the third is that the emulsified oil circulates in the oil circuit too frequently. Difficulty in heat dissipation and temperature rise. Fault diagnosis should be from easy to difficult. First check the amount of oil in the emulsified oil tank. If the amount of oil in the oil tank is insufficient, add it to the standard level in time.
3. Dirty emulsified oil The hydraulic support emulsified oil is dirty and dirty. It may be that the oil has chemical changes due to long-term use, or it may be that too many impurities have caused physical changes. In the absence of necessary testing equipment and equipment, determine whether the emulsified oil is chemically changed. Change or physical change, a relatively simple and practical method is to use filter paper to detect. Take a sample of the emulsified oil, drop the oil on the filter paper, and observe the oil halo formed. If the layering and separation of the oil halo are obvious, it means that the emulsified oil has deteriorated and needs to be replaced with new oil. If the halo spreads evenly , Indicating that the emulsified oil contains too much impurities, it is necessary to check the oil filter in time, replace the filter element, and replace with new emulsified oil if necessary. The above are several common problems in the process of using hydraulic support emulsified oil. I hope that the content in the article can be of relevant help to you.
