How to choose the filtration method of the oil purifier?

When choosing the filtering method of the oil purifier, it is necessary to decide based on the type of oil, the internal characteristics and the purification target. The following are the key factors and steps for choosing the filtering method:

1. Understand the characteristics of the oil- Oil type:- Turbine oil, hydraulic oil, lubricating oil, insulating oil, gear oil, etc.

- Viscosity:

High viscosity oils (such as gear oil) and low viscosity oils (such as turbine oil) require different filtering methods.

- Working temperature:

The working temperature selection range of the oil affects the filtering efficiency and equipment.

2. Analyze the characteristics of the firewall

- Moisture:

- Free water, emulsified water or dissolved water.

- Solid particles:

- Particle size (such as 1μm, 5μm, 10μm) and concentration.

- Gas:

- Whether the oil contains air or other gases.

- Chemical Manhattan:

- Whether the oil contains acidic substances, oxides or other chemicals.

3. Determine the purification target

- Bringing moisture:

- ｓｅｌｅｃｔ a filtration method with segmentation function (such as segmentation segmentation, coalescence segmentation).

- Removing solid particles:

- ｓｅｌｅｃｔ a filtration method with primary filtration function (such as precision filtration, centrifugal filtration).

- Asphyxiating gas:

- ｓｅｌｅｃｔ a filtration method with degassing function (such as vacuum degassing).

- Comprehensive purification:

- ｓｅｌｅｃｔ a multifunctional filtration method (such as vacuum oil purifier combined with precision filtration).

4. ｓｅｌｅｃｔ filtration method

- Vacuum filtration:

- Applicable scenarios: generating moisture and gas.

- Features: using vacuum environment to lower the boiling point of water, efficient degassing and degassing.

- Applicable oil products: turbine oil, insulating oil, hydraulic oil, etc.

- Precision filtration:

- Applicable scenarios: very small solid particles.

- Features: using pre-filter element (such as 1μm, 5μm), high filtration efficiency.

- Applicable oil products: hydraulic oil, lubricating oil, gear oil, etc.

- Coalescing filtration:

- Applicable scenarios: remove emulsified water and tiny water droplets.

- Features: small water droplets are coalesced into large water droplets through the coalescing filter element and then separated.

- Applicable oil products: hydraulic oil, turbine oil, etc.

- Centrifugal filtration:

- Applicable scenarios: remove water and solid particles.

- Features: use centrifugal force to separate water and particles, suitable for high viscosity oil products.

- Applicable oil products: gear oil, heavy oil, etc.

- Adsorption filtration:

- Applicable scenarios: remove dissolved water and chemical solutions.

- Features: use adsorbents (such as silica gel, molecular sieves) to adsorb adsorbents.

- Applicable oil products: insulating oil, turbine oil, etc.

- Plate and frame filtration:

- Applicable scenarios: produce large solid particles.

- Features: filter through filter paper or filter cloth, suitable for coarse filtration.

- Applicable oil products: lubricating oil, gear oil, etc.

5. Consider the filtration accuracy

- Coarse filtration:

- The filtration accuracy is generally above 10μm, which is used to produce large particles.

- Precision filtration:

- The filtration accuracy is 1-10μm, which is suitable for tiny particles.

- Ultra-precision filtration:

- The filtration accuracy is 0.1-1μm, which is used in occasions where the oil purity is extremely high.

6. Consider the performance of the equipment

- Flow rate:

- ｓｅｌｅｃｔ a suitable flow rate (such as L/min or m³/h) according to the processing volume of the oil.

- Automation degree:

- Choose an oil purifier with automatic control function to improve the convenience of operation.

- Performance:

- Consider the performance of the oil purifier and choose energy-saving equipment.

7. Combined with the actual application scenario

- Mobility:

- If the oil purifier needs to be moved intermittently, choose a portable or mobile device.

- Environmental conditions:

- When used in extreme temperature or humidity environments, choose equipment with high power consumption and high stability.

Common oils and recommended filtration methods

| Oil type | Main Manhattan       | Recommended filtration method               |

|--------------|----------------------------------|--------------------------------|

| Turbine oil       | Moisture, gas, particles     | Vacuum filtration + precision filtration            |

| Hydraulic oil       | Moisture, particles           | Coalescing filtration + precision filtration            |

| Insulating oil       | Moisture, gas, particles     | Vacuum filtration + adsorption filtration            |

| Solution       | 、Moisture      Particles     | Plate and frame filtration + precision filtration            |

| Gear oil       | 、Moisture      Particles     | Centrifugal filtration + precision filtration            |

| Heavy oil         | 、Moisture      Particles     | Centrifugal filtration |

Summary

When choosing the filtration method of the oil purifier, you need to consider factors such as oil characteristics, filtration type, purification target, filtration accuracy, equipment performance and application scenarios. By choosing the filtration method reasonably, you can improve the cleanliness and performance of the effective oil and extend the service life of the equipment. If you are not sure how to choose, you can consult the oil purifier supplier or professional technicians for advice.