The problem of low oil pressure of dry oil-free air compressor is actually a misunderstanding, because the dry oil-free air compressor itself does not use lubricating oil, so there is no traditional concept of "oil pressure. However, the "low oil pressure" mentioned here may be in analogy or misunderstanding, referring to some abnormal pressure index related to the performance or operating state of the air compressor, such as insufficient output pressure of compressed air. In view of this situation, we can make rigorous analysis and discussion from the following aspects:
1. clarify the nature of the problem
first of all, it should be clear that there is no oil pressure system in the dry oil-free air compressor, so "low oil pressure" may refer to low output air pressure or some abnormal pressure inside the system. In the subsequent analysis, we will focus on the possible causes of low output pressure and solutions.
Possible Causes of Low 2. Output Pressure
- intake system problems:
- the air intake filter is blocked: the air intake filter has not been cleaned or replaced for a long time, resulting in poor air intake and affecting compression efficiency.
- Intake pipe leakage: The connection of the intake pipe is loose or damaged, causing external air to enter and reducing the compression ratio.
- Compression system problems:
- screw rotor wear: the gap between the screw rotors increases, resulting in an increase in gas leakage during compression and a decrease in compression efficiency.
- Seals aging or damage: such as bearing seals, shaft seals and other seals failure, resulting in internal gas leakage.
- Cooling system problems:
- poor cooling effect: The cooling system failure or insufficient coolant causes the heat generated during the compression process to be unable to be dissipated in time, which affects the compression efficiency.
- Control system problems:
- improper pressure setting: The pressure setting value in the control system is too low, causing the air compressor to fail to reach the normal working pressure.
- Sensor failure: The pressure sensor is damaged or misaligned, causing the control system to fail to accurately monitor and adjust the pressure.
- Environmental factors:
- ambient temperature is too high: In high temperature environment, the air density is reduced, which affects the compression efficiency.
- Excessive environmental humidity: high humidity of the air in the compression process is easy to produce condensed water, affecting the gas quality and compression efficiency.
3. Solution
- check and clean the air inlet filter: Clean or replace the air intake filter regularly to keep the air intake unblocked.
- Inspect and repair the air inlet duct.: Check whether the connection of the intake pipe is loose or damaged, and repair or replace the damaged parts in time.
- Check and replace worn parts: Regularly check the wear of key parts such as screw rotors and seals, and replace severely worn parts in time.
- Check and maintain the cooling system: Ensure the normal operation of the cooling system, sufficient coolant and smooth circulation.
- Adjust control system parameters: Adjust the pressure setting value of the control system according to actual needs, and check whether the working state of the sensor is normal.
- Improving environmental conditions: In high temperature or high humidity environment, take appropriate cooling or dehumidification measures to improve air quality and compression efficiency.
To sum up, the problem of "low oil pressure" of dry oil-free air compressor may actually refer to low output air pressure or some abnormal pressure inside the system. In view of this situation, we should check and investigate the intake system, compression system, cooling system, control system and environmental factors, find out the specific reasons and take corresponding measures.
