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Features of oil filter and installation points of filter press

1. The two-stage high vacuum and high speed pumping system can quickly and efficiently remove the harmful components such as moisture, gas and impurities from the oil, and improve the withstand voltage strength of the insulating oil.


2. It can meet the requirements of vacuum pumping and vacuum oiling of transformer on site.


3. The ultra-high precision filtering system can remove the mechanical impurities in the oil quickly and effectively. The filter material has the advantages of strong corrosion resistance, large pollutant holding capacity, high mechanical strength and durability.


4. Automatic constant temperature system, automatic liquid level control system, automatic pressure protection system, automatic defoaming control system to ensure the high-performance operation of the equipment.


From the above, we can see that the two-stage vacuum is first to achieve "large pumping speed", that is, efficiency, rapid increase of vacuum degree; second, increase the area of vacuum flash, effective and rapid demulsification, removal of water. The external form of the two-stage vacuum oil filter is two vacuum tanks, increasing the vacuum negative pressure and the exposure area of oil-water separation in the vacuum environment. At the same time, by controlling the different vacuum degrees between the two vacuums, the vacuum high pressure and low pressure can be adjusted to realize the indirect adjustment of drainage and exhaust. The corresponding single-stage vacuum is only one vacuum tank. Generally, the double-stage vacuum oil filter is mainly used to filter the oil products with higher separation requirements such as transformer oil and insulating oil. Of course, it is not excluded that it is applied to the oil products with higher filtration efficiency and better demulsification requirements.

ZYD series double stage vacuum transformer oil purifier.jpg

In recent years, many staff engaged in food processing and oil technology research have tried to use chemical methods and various antioxidants to inhibit the increase of acid value and peroxide value. However, due to the influence of temperature control, oil-water mixing and other factors, the effect is still not very good. The physical adsorption and precise filtration method can suppress the increase of acid value and peroxide value, which is more suitable for food processing safety and convenience.


In recent years, frying oil filters have been developed at home and abroad, which is one of the typical representatives. They tried to filter out the catalyst of oil deterioration reaction such as polymer, peroxide and suspended particle impurities in high temperature frying oil by physical filtration, so as to restrain the increase of acid value and peroxide value in frying oil.


Because the use of general filtration equipment with the usual filtration method, it is impossible to remove such small impurities. In order to achieve a very precise filtering effect of more than 5 μ m, a brand of frying oil filter was developed and produced in the first place in China, focusing on the thorough filtration of suspended particles and impurities. It not only meets the requirements of high precision, but also is suitable for operation at 185 ℃ - 200 ℃, and meets the needs of large industrial production filtration.


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