Hydraulic oil filtration system
 
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To improve transformer oil, insulating oil dielectric strength, making less trace moisture content, gas content, dielectric loss factor and other indicators, before pumping transformer oil into the tank must be preceded by a rigorous treatment, the effective removal of oil in the water, gas and impurities. In practice applications, we have for different types of transformer oil, insulating oil using different forms of oil filter for targeted treatment, results were better.


1. For the general transformer are impurities, water and dust contaminated transformer oil, you can use the JL pressure transformer oil filter, through a series loop filter, is usually able to meet the requirements. Its principle is to use oil filtering paper to absorb moisture, filter impurities. Advantage is a subtle effect of impurity removal is good, its simple structure, convenient maintenance, reliable operation, easy handling, so widely used. The disadvantage is that water filters are not thorough; it only applies to low-voltage level of transformer oil, insulating oil filtration.

 
2. Now generally used a vacuum oil purifier (there are ZY single stage vacuum transformer oil purifier machine ZYD double stages vacuum transformer oil purifier), it can not only completely remove the oil water and gas, but also can effectively remove small impurities. The process is: when dealing with coarse filtration of transformer oil → → → heating oil fine filtration vacuum degassing → Absolute dehydration. Coarse metal mesh filter and strong magnets, fine filtration is usually 1 ~ μm micro-filter impurities. At present many different types of fine filters, sintered metal powder material, metal microporous materials, ceramic filter media and the use of special structure of filter paper filter core and so on. 

Transformer oil heating degassing vacuum dehydration. The principle is that the vacuum inside the tank, the heating of transformer oil with the formation of oil mist spray approach, leaving the oil in the gas and water escape. Oil temperature around 60 ℃ in general, not too high so as to prevent aging of transformer oil. This approach dehydration degassing effect is better, is more commonly used methods.

If the oil is sprayed into the oil has a certain diameter beads, the beads due to higher oil interfacial tension, making the oil water and gas within the beads difficult to bring into full play. To this end, the diameter of injection holes to choose appropriate, and generally taking the time to be in the tank set up with a few baffles the mouth to prevent the transformer oil is pumped vacuum. 
At present, foreign and domestic has also adopted a more advanced membrane dehydration degassing method is to make the oil into the tank, through a degassing components formed after the thin oil film, and has always been to film the entire process of degassing state of complete dehydration , thus making the water in oil and gas easier to remove.


3. Badly contaminated transformer oil filter/oil regeneration (Choose our BZ oil regeneration device).Contaminated transformer oil (commonly known as dirty oil), is being mixed with very small impurities and oil molecules combine to form a colloidal contaminated transformer oil, and after years of used transformer oil, the general product release for the repairing of oil (This oil has a very low pH value). Of such waste oil must be used in order to improve the absorption approach to oil targets. Were more commonly used silica (SiO2) or activated alumina (A12O3) as adsorbent. Waste oil processing system in order to ensure full access to silicone and transformer oil, and to facilitate replacement of silica gel, silica gel tank set up in a number of partitions, the silica gel into a small cloth bag within the rotation, not in bulk. After the heating of the transformer oil into the gel tank, do a certain time cycle to its full absorption effect, and then injected into the Absolute through the oil filter tank. In the process should be regularly monitored to determine the absorption effect, when the absorption effect is not apparent that it should consider replacing the silica gel. General silicone oil consumption by weight or about 3% ~ 5%. Waste oil processing system with the new oil-processing systems should be separated to avoid cross-contamination. Loading used waste oil cans, containers, etc. must be thoroughly cleaned before be used for the normal production of the oil system.


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