Vacuum Oil Purification Equipment: Large Degassing Stage, Efficient Pumping Speed

To ensure a uniform heating of the insulating oil before degassing, the oil is heated up by means of a heat exchanger. Hot water that is electrically heated in a closed circuit is used as heating medium. Local overheating and thus the danger of cracking as caused by electric heating elements are avoided.

The degassing stage is filled with special filling bodies and is provided with a large distribution cone at the inlet ensuring a large surface of the oil to be degassed. The vacuum pumping speed is optimally adapted to the degassing capacity. Whether with or without a roots stage, different drying and degassing degrees can be achieved in one pass.

For protection against foaming and ingress into the vacuum pumps, the oil purification systems are provided with a special separator. An additional water cooling allows to collect even low-boiling oil fractions and return them to the insulating oil.

All oil purification systems can be provided with measuring sensors for residual gas, residual moisture, temperature, vacuum and oil throughput for recording and documentation of the quality of the purification.