+86 132 06063693

Technical Support
Characteristic of Vacuum Lube Oil Purifier

May 10,2022.

The dehydration of lubricating oil by the original Vacuum Oil Purifier is generally carried out in the vacuum system by increasing the temperature and reducing the pressure to make the water vapor therein. This kind of Oil Purification Plant requires a long period of repeated cycles to complete. Even if the most advanced three-dimensional evaporation technology is used, the lubricating oil with too much water content needs to be processed repeatedly; in order to improve the efficiency of the oil dehydration speed, on the basis of maintaining the original vacuum negative pressure dehydration, we have introduced advanced coalescence and separation technology, that is, the Vacuum Oil Purifier not only relies on the vacuum system for dehydration, but also uses the coalescence and separation made of wood fiber imported from Italy. The filter element directly removes 80% of the water in the oil. This filter element has strong water repellency and lipophilicity. When the variable pressure oil containing a large amount of water passes through the filter element, the water repellency of the filter element prevents the water in the oil from passing, and the filter element The lipophilicity of the oil allows the oil molecules to pass smoothly. The Lube Oil Purifier adopts coalescence separation technology which makes 80% of the water in the oil need not be removed by a vacuum dehydration, so the original vacuum oil dehydration volume is less than 20% of the original required dehydration volume , Which greatly improves the dehydration performance of the Vacuum Oil Purification Plant. It can be observed intuitively that the Oil Purifier using the dual primary dehydration technology can observe the removal of water from the Oil Purification Plant while purifying the oil.

In the past, vacuum Lube Oil Purifier emphasized the removal of liquid water in the oil under vacuum negative pressure, whether it was planar evaporation or three-dimensional evaporation. Planar flash evaporation realizes dehydration by heating up the oil in a vacuum tank. Not only its dehydration time is long, but also the dehydration accuracy is poor. Although three-dimensional flash evaporation increases the vacuum tank in the oil circuit to increase its dehydration function. This method contains a large amount of liquid water oil can indeed improve its certain dehydration effect, but its shortcomings are also obvious. In order to increase the oil circuit in the vacuum tank, it is necessary to put a large number of reaction rings (reaction devices) in the vacuum tank. It does not improve its desorption effect. Secondly, three-dimensional flash evaporation cannot remove the micro-water in the oil. We know that the water in the oil is not only a large amount of liquid water, but also a small amount of moisture, that is, dissolved water, free water and saturated water. Although this kind of water accounts for a small proportion in the oil, if it is not effectively removed, the treated lubricating oil will re-emulsify after being placed for a certain period of time.

It is not easy to deal with this kind of moisture, because the molecular is very short, such as a kind of hydrogen peroxide saturated with water, it is composed of two oxygen molecules and two hydrogen molecules. Free water is composed of one oxygen molecule and two hydrogen molecules, and its molecular chain is twice as long as that of saturated water. We know that the shorter the molecular chain, the better its stability, and the longer the molecular chain, the worse its stability. This difference in molecular structure makes micro-water extremely stable, and it cannot be solved at all by the vacuum decompression method of general planar or three-dimensional flash evaporation.

The dual three-dimensional flash and microgram technology we are now using is the technology of the 1990s, and it is constructed based on the properties of micro water. The double-type three-dimensional flash evaporation is based on the original three-dimensional flash evaporation and a vacuum tank is added and connected in series, and the original reaction device is respectively placed in two vacuum tanks. In this way, not only the dehydration volume of the vacuum tank is greatly increased, but the oil is flashed twice in two vacuum tanks in the Oil Purification Plant. Therefore, its vacuum out of normal water speed is more than twice as fast as the original three-dimensional flash evaporation. Microgram technology is the most advanced micro-water and micro-gas overcoming technology. It is processed by converting micro-water into liquid water under the action of a heavy ion accelerator in a vacuum tank. It can take advantage of oil temperature and negative pressure to make the speed of molecules in the oil reach 80% of the speed of light, so that micro-water molecules The molecular structure of water is changed, and the molecular structure of normal water is separated and volatilized.

The use of microgram technology allows all kinds of water in the oil to be completely removed, so that the treated oil will not be re-emulsified and polluted, ensuring the normal operation of equipment (especially imported equipment). At present, the Lube Oil Purifier produced by other domestic manufacturers generally uses planar evaporation technology for dehydration (that is, the heated lubricating oil is directly dehydrated in an empty vacuum tank) and monomer three-dimensional flash evaporation technology for dehydration. In this way of dehydration, one is that the dehydration time is long, the other is that the index is low, and the third is that only saturated liquid water can be removed, and the water in an unsaturated state cannot be removed.

In terms of impurity removal, other manufacturers of Vacuum Oil Purifier use pure mesh filtration, that is, filter through various filter screens or filter elements made of filter cloth or filter paper. This filter element uses the pore size of its mesh to filter out impurities, so that impurities larger than the pore size can be effectively filtered, but fine impurities smaller than the pore size cannot be solved. If the pore size of the filter element is too small (generally less than 5µm) Oil cannot pass through, and the current domestic filter elements can only be controlled at a β3 value greater than or equal to 200. However, the impact of fine impurities on oil is also very large. The coulomb force is a purification method, which uses the different dielectric constant ε of oil and water, colloids, impurities, and mechanical impurities to adsorb it on the filter wall; this coulomb force is generated by the high-speed operation inside the molecules to achieve. We use a combination of two mesh filter elements and a polymer filter element to remove impurities, which can not only ensure that the particle size of the oil is less than 5µm, but also that the cleanliness of the oil is less than or equal to NAS 6 grade. Contact us at: sales@acorefiltration.com

Copyright © 2023 Acore Filtration Co. Ltd.

Request A Quote

Request A Quote