Transformer oil filter adopts oil-water separation technology combined with film evaporation and drying. It is equipped with heating power matched with vacuum pumping speed and flow rate, and degassing elements, so that the machine has good dewatering function. Insulating oil is often treated at high temperature, and its performance index exceeds the standard. Compound microporous filtration technology is adopted, which has strong ability to absorb contamination and high filtering accuracy. It is small in size, reliable in operation and convenient in movement. It is especially suitable for field treatment of insulating oil.
Transformer oil filters adopt three-dimensional flash and microgram technology, and combine mesh filtration and molecular adsorption to remove impurities. The efficiency of transformer oil filters is 5-8 times higher than that of ordinary vacuum oil filters. It does not need any consumables, and the energy consumption is very low.
Working Principle of Transformer Oil Filter
When transformer oil filter works, under the action of pressure difference inside and outside oil, it enters the pre-filter, filters large particles of impurities. After oil is heated to a special individualized vacuum separator, fog is formed in the vacuum separator first, film is formed, the contact area of vacuum is expanded hundreds of times, water in oil is high-heat, high-vacuum, large surface, under the condition of rapid evaporation and discharge of vacuum system, pumping speed is achieved. High degree.
The steam discharged from the upper part of the vacuum separator is first cooled and dehumidified by the condenser, and then cooled in the cooler. After secondary condensation and dehumidification, the condensed water is discharged into the air by vacuum pump.
After vacuum vaporization and dehydration, the dry oil in the vacuum separator is raised from negative pressure to positive pressure through the oil pump. After filtration, the purified oil is discharged from the outlet to complete the whole process of purifying oil.
Installation and commissioning of transformer oil filter
1. Connect the inlet and outlet oil pipes.
2. Connect the three-phase and four-wire power supply according to the total power of the machine, so that the steering direction of the front pump, oil pump and Roots vacuum pump is consistent with the arrow direction.
3. There should be no blockage and eccentric vibration in creeping front stage pump, Roots pump and oil pump.
4. Check for leakage of oil, gas and water pipes.