Common faults of air compressor three filter technical indicators

Common faults of air compressor three filter technical indicators

One: Oil separator

1. Working principle of oil and gas separator:

  The oil and gas separation element is a key component that determines the quality of the compressed air of an air compressor. The high-quality oil and gas separation element can not only ensure the high efficiency of the compressor, but also the filter element life can reach thousands of hours. The compressed air from the compressor head entrains oil droplets of various sizes. Large oil droplets are easy to separate when passing through the oil and gas separation tank, while small oil droplets (suspended oil particles below 1um in diameter) must be filtered through the micron and glass fiber filter layer of the oil and gas separation filter. Oil particle drops, under the action of gravity, the oil collects at the bottom of the oil separator core and returns to the lubricating oil system of the machine head through the oil return pipe inlet at the bottom recess, so that the compressor discharges more pure and oil-free compressed air. The solid particles in the compressed air pass through the oil separation core and stay in the filter layer, which causes the oil separation core difference (resistance) to increase continuously. As the use time of the oil separation core increases, when the pressure difference of the oil separation core reaches 0.08-0.1Mpa, the oil core must be replaced, otherwise the operating cost of the compressor (power consumption) will increase.

2. Technical index of oiler separator:

Oil content of gas after separation: ≤3PPM

Working temperature: <120°C

Initial pressure difference: >0.02Mpa

Service life: ≥4000H

Two: Air filter:

The filter material of the air filter is pure forest pulp filter paper

from HV Company of the United States or Ahlstrom Company of South Korea,

which has the characteristics of good stiffness, high filtration

efficiency, large dirt holding capacity and long service life.

Technical indicators:
Filter accuracy: 10μm

Initial pressure difference: ≤0.02Mpa

Filtration efficiency: ≥98%

Service life: ≥2000H

Three: Spin-on oil filter

The filter material adopts the solidified filter paper of South Korea Ahlstrom Company or the ultra-fine glass fiber of American HV Company, which has good stiffness, high filtration efficiency and long service life. It avoids the high temperature of the machine, ensures the cleaning of the lubricating fluid and the use time of the lubricating fluid, and extends the oil and gas separator Time of use.
Technical index:

Filtration accuracy: 5-12μm

Initial pressure difference: ≤0.03Mpa

Service life: ≥2000H

Four: Common causes of failure:

（One）．High exhaust gas oil content

1. The oil return pipe is blocked

2. Too much fuel

3. The oil temperature is too high

4. The gasket is unqualified

5. Low pressure operation of air compressor

6. Damage to the oil return check valve

7. Minimum pressure valve failure

（Second）： the pressure difference rises too fast

1.Poor oil quality

2. The accuracy of the air filter is too low

3. The oil temperature is too high

Five： application scenarios