The Best Guide to Vacuum Oil Purifiers
The vacuum oil purifier can be used to filter oil on site for various oil-immersed transformers, oil-immersed current and voltage transformers, and high-voltage oil-less circuit breakers.
What are the advantages of a vacuum oil purifier?
1. Small size, lightweight, easy to move, and low noise.
2. Stable performance, convenient operation, and long continuous working time.
3. It is an ideal equipment for various power plants, electrical appliance manufacturers, oil refineries, petrochemical, and other enterprises to filter moisture, gas, and impurity particles in transformer oil.
What is the working principle of a vacuum oil purifier?
It consists of a vacuum pump, vacuum degassing and dehydration chamber, heater primary filter, fine filter, condenser, water tank, oil discharge pump, and electrical cabinet, etc.
The filtration process of vacuum oil purifier:
1. The vacuum pump draws out the air in the vacuum tank to form a vacuum.
2. Under the action of atmospheric pressure, the external oil enters the primary filter through the inlet pipe, and then filters larger particles.
3. The oil enters the heating tank, and the oil heated to 45~65℃ passes through the automatic oil float valve, which can automatically control the balance of the oil entering and leaving the vacuum degassing and dehydration chamber.
4. The heated oil is separated into a semi-mist by the rapid rotation of the jet wing, and the water in the oil is rapidly evaporated into water vapor and continuously sucked into the condenser by the vacuum pump.
5. The water vapor entering the condenser is cooled and then returned to the original water and released.
6. The oil in the vacuum degassing and dehydration chamber is discharged into the fine filter by the oil discharge pump. The particulate impurities are filtered out through fine filter.
In this way, the whole process of the vacuum oil purifier to filter water, gas, and impurities in the oil is completed.
Filter maintenance and management of vacuum oil purifier
1. Check the filter element for clogging. If there is no blockage, replace the filter element or clean it every 1 to 3 months. At the same time, drain the dirty oil in the shell and clean the inside.
2. Change the filter regularly.
3. Do not bring in foreign objects.
Common faults and solutions of vacuum oil purifiers
1. Small oil flow inlet, the oil purifier cannot run normally by keeping oil level balance.
| Reason | Solution |
| oil inlet valve is broken | change inlet valve |
| rough filter is jammed | clean or change rough filter |
| solenoid valve is broken | change solenoid valve |
| there is leakage between oil tank and inlet end | check and solve the problem |
2. The machine stopped, alarming:
- over-high oil level, machine stopped
| Reason | Solution |
| Core of solenoid valve was jammed. | Check and reset the core |
| High water content in oil, there is too much foam in vacuum tank T3.1 | Run the machine with lower pressure, remove big amount of water and run the machine with high vacuum. |
| Oil level switch is broken | Change oil level switch |
| There is leakage between oil tank and inlet end | Check and solve the problem |
| After you solve the problem, please discharge all oil from T4.1 before run the machine again normally. |
- Machine over pressure shutdown
| Reason | Solution |
| Fine filter jammed | Check and exchange filter |
| Oil outlet valve closed because of disoperation | Check and open the oil outlet valve |
| Oil outlet valve damaged | Change the oil outlet valve |
3. Higher noises of oil transfer pump suddenly:
| Reason | Solution |
| oil level in the vacuum separation chamber is too low | Same as solve the problem 1 |
| Full of foam in vacuum separation chamber | Run the machine with lower pressure, remove big amount of water and run the machine with high vacuum. |
4. Machine stopped suddenly:
If the machine stopped suddenly because of power off during running, please shut down oil outlet and inlet valve to avoid oil suck back to vacuum tank and then into vacuum pump.
You can contact the vacuum oil purifier manufacturer YUNENG about problems, and we will provide you with solutions. YUNENG produces a variety of vacuum oil purifiers, and we will provide the best oil purifier model according to your specific needs.
