Analyze the air compressor intercooler leakage problem

The air compressor intercooler has the image of the lung of the compressor. Its cooling effect and reliability directly affect the aerodynamic performance and overall efficiency of the compressor. With the increase of intercoolers for air compressors, a series of coolers adapted to various operating conditions and different models are naturally formed. However, the air compressor intercooler often has a leaking fault. What is the cause?

In order to reduce compressor power consumption and ensure reliable operation of the compressor, an intercooler is provided between the stages. In the intercooler, the gas is cooled by the cooling water by means of convective heat transfer. If the intercooler leaks, the gas passage communicates with the cooling water passage, and the direction of leakage depends on the pressure of the gas and the cooling water.
Air compressor intercooler leakage causes

The intercooler behind the first stage, the cooling water pressure is usually higher than the gas pressure. Therefore, if the first stage intercooler leaks, the cooling water will enter the gas side, and the gas will be entrained with water, so that the amount of water blown by the first stage oil water separator is significantly increased. How to solve the air compressor intercooler leakage.

According to the above two phenomena, the judgment of the intercooler leakage can be made. When the air compressor system exhaust volume decreases, the air compressor system pressure begins to rise, and the controller receives the signal of the pressure rise, and begins to gradually reduce the opening degree of the intake valve. Also with the reduction, of course, the motor current is also reduced. When the system uses the gas volume to increase, the system pressure begins to decrease, and the controller receives the pressure reduction signal, and gradually increases the opening degree of the intake valve. At this time, the displacement of the screw machine is also increased to the full output. If the system gas consumption continues to decrease, when the system pressure rises to the lower limit of the empty vehicle pressure setting, the controller will fully close the intake valve. At this time, the air compressor starts empty running and reaches the set idle running delay. After the time, the motor stops running, and the air compressor can stop automatically. When the pressure and exhaust volume change, the electric control part starts the motor (no load start), and the air compressor can be automatically turned on. Really achieve 24 hours of unattended, while the company will save a lot of energy, reducing production costs for enterprises.