Oil temperature requirements for turbine oil purifiers

Turbine oil purifier has certain requirements for oil temperature during operation to ensure the filtering effect and equipment safety. The following are common oil temperature control points:

1. General oil temperature range

- Optimum working temperature: 40~60℃ is usually recommended

- Reason: In this temperature range, the viscosity of the oil is moderate and the fluidity is good, which can ensure the effective separation of impurities and will not cause oil oxidation or filter material damage due to excessive temperature.

- Viscosity effect: When the temperature is too low, the viscosity of the oil increases, which may lead to a decrease in filtering efficiency; too high temperature may accelerate oil aging.

- Allowable range: Some oil filters can adapt to 20~80℃, but it needs to be adjusted according to the equipment model and oil characteristics.

2. Temperature differences of different oil filtering technologies

- Vacuum oil filter:

- Usually requires 50~70℃ (high temperature helps water evaporation, but local overheating should be avoided).

- Centrifugal/pressure oil filter:

- The temperature can be slightly lower (30~50℃), relying on mechanical separation rather than vacuum dehydration.

- Coalescing oil filter:

- It needs to be maintained at 40~60℃ to ensure effective coalescence of water and impurities.

3. Precautions

- Heating method: Oil filters usually have built-in heaters, and direct high-temperature heating (such as over 80℃) should be avoided to prevent oil oxidation or the generation of harmful gases.

- Temperature monitoring: Real-time monitoring of inlet and outlet oil temperatures. Excessive temperature difference may indicate heater failure or abnormal flow.

- Oil characteristics:

- For high-viscosity oils (such as ISO VG 46 and above), the temperature needs to be appropriately increased to 50~65℃.

- If the oil contains a large amount of water, the temperature needs to be controlled in a vacuum environment (such as 60℃) to avoid foaming.

4. Safety Limits

- Maximum temperature: generally not exceeding 80℃ (some synthetic oils can be relaxed to 90℃, please refer to the oil factory's recommendations).

- Minimum temperature: If the oil temperature is lower than 10℃, the oil filter must be preheated before starting to avoid damage to the equipment due to a cold start.

Operation suggestions

- Refer to the oil filter manufacturer's instructions and the technical specifications of turbine oil (such as ISO 8068).

- Regularly check the temperature sensor and heating system to ensure accurate temperature control.