Reasons and solutions for acid value of turbine oil

The hazard of excessive acid value

The acid value is of turbine oil indicator that reflects the deterioration of turbine oil. An increase in the acid value indicates that the turbine oil has deteriorated and an acidic substance is produced. The acidic products formed by the deterioration of the oil affect the oil emulsification degree, particle size, foam and air release value to varying degrees. At the same time, the high acid value oil has corrosive effect on the metal parts. The acid value of the oil in operation should be controlled at 0.2 mg KOH/g (the acid value of the turbine oil with rust inhibitor should be controlled within 0.3 mg KOH/g).

 Reasons for excessive acid value There are two reasons for the excessive acid value. First, the oil quality is poor, that is, the antioxidant capacity of the running oil is reduced or even lost, resulting in a sharp rise in the acid value of the oil. Second, the oil system is overheated or Local overheating causes a gradual increase in acid value.

 Method for reducing and controlling excessive acid value

If the acid value of the turbine oil exceeds the standard, the vacuum oil purifier should be used to dehydrate and filter the impurities, and then treated by adsorption and regeneration. The acid component, the suspended matter, the precipitated substance, the polar substance, and the like in the oil can be removed by adsorption and regeneration, and the acid value in the oil can be lowered to 0.03 mgKOH/g. The device uses a special scavenger that does not damage the essential components of the oil and its antioxidant properties.