Both vacuum oil purifier and centrifugal oil purifier are oil purifiers, which can filter impurities and moisture in oil. However, there are many differences in terms of technical principles, application scenarios, etc. Before understanding the difference between vacuum oil purifier and centrifugal oil purifier, let’s first understand the similarities between them.
What are the Similarities Between Vacuum Oil Purifier and Centrifugal Oil Purifier?
Vacuum oil purifier and centrifugal oil purifier can be used for dehydration and impurity removal of industrial oil, lubricating oil, turbine oil and other oils.
What is the Difference Between Vacuum Oil Purifier and Centrifugal Oil Purifier?
1. The Principle and Technology of Oil Filtering are Different.
The centrifugal oil purifier adopts the principle of high-speed rotation. The water and impurities are thrown out of the oil by the force of high-speed rotation and centrifugal force.
Vacuum oil purifier adopts filter element filtration adsorption and vacuum evaporation technologies to filter oil products. Under vacuum conditions, the boiling point of water in oil is greatly reduced, and a large amount of water can be evaporated without very high temperature. The boiling point decreases with the increase of vacuum, and the water evaporates faster. The higher the temperature is, the faster the water evaporates.
Filtering process of vacuum oil purifier:
When the vacuum oil purifier works, the oil to be filtered enters the primary filter under the effect of the internal and external pressure difference and is filtered out of large particles of impurities. After multi-stage infrared heating, it enters a specific vacuum separation device. In the vacuum separator, fog is formed first, and then a film is formed, which expands the contact area of oil in vacuum hundreds of times.
The water in the oil evaporates rapidly and is discharged from the vacuum system under the conditions of high heat, high vacuum, large surface area and high speed. The water vapor discharged from the upper part of the vacuum separator is cooled and dehumidified by the condenser first, and then enters the cooler again for cooling. After two times of condensation, the condensed water enters the water storage tank and is discharged.
2. They are Applicable in Different Occasions.
The dehydration speed of the centrifugal oil purifier is very fast, but the filtering accuracy is not as high as that of the vacuum oil purifier, and the micro water cannot be filtered, the emulsification cannot be broken, the gas cannot be removed, and the acid value cannot be reduced. For industrial oil products with high requirements on cleanliness, water content and gas content, the centrifugal oil filter has relatively insufficient capacity.
The centrifugal oil purifier needs frequent system cleaning. The workload of system installation is large, the installation requirements are high, the equipment cost is high, and the problem of oil emulsion cannot be solved. Centrifugal oil purifiers have been discontinued in many power plants and steel plants.
The vacuum oil purifier is very suitable for filtering various industrial oils with high water content requirements. It is suitable for precision filtering, and the price is moderate. Both new oil and deteriorated oil after use are applicable to vacuum oil filter.
Coalescence Dehydration Vacuum Oil Purification Machine and Vacuum Oil Purifier
The common vacuum oil purifier is suitable for removing trace water in oil, such as transformer oil.
You can also learn more: What is Transformer Oil Filtration & Why/When Transformer Oil Filtration is Required?
DYJC series turbine oil purifier should be selected for turbine oil and lubricating oil with high water content. The machine is a combination of coalescence principle and vacuum principle. It can be used alone for deep dehydration by vacuum system, or only online filtration by coalescence dehydration system. It can also enable vacuum separation and coalescence dehydration separation at the same time. It is suitable for oil products with high water content, serious emulsification and deep dehydration to achieve good oil quality.
YUNENG is a leading manufacturer of vacuum oil purifiers in China. YUNENG is an excellent oil treatment equipment manufacturer, which can produce equipment for filtering transformer oil, lubricating oil, hydraulic oil and other oils. If you don’t know which oil purifier is suitable for you, you can contact us and we will provide you with the best suggestions and products.