General concept of stationary compressors

Stationary compressors are mechanical equipment designed to increase the pressure of gases, mainly air, by reducing their volume in a fixed system. Unlike portable compressors, these devices are installed in permanent locations within a plant or industrial facility, allowing them to operate continuously to supply compressed air or gases to different production processes.

The term 'stationary' refers to their fixed location, generally integrated into central compressed air systems that supply multiple points of use. These compressors are essential in industries that require a constant and reliable supply of compressed air, such as manufacturing, construction, mining and chemical processing.

Positive displacement compressors

Positive displacement compressors work by trapping a fixed volume of gas and reducing its volume to raise its pressure. They are especially useful when high pressures and constant flow rates are required. Among the most common are piston, screw and vane compressors.

The piston compressor is one of the oldest and is characterized by using a cylinder and a piston to compress the air. They are robust, suitable for high pressures, but tend to be noisy and require frequent maintenance. Screw compressors use two helical rotors to compress air continuously, standing out for their efficiency, lower noise and reduced maintenance. Vane type, on the other hand, uses sliding vanes on an eccentric rotor to compress, being common in low to medium pressure applications.

dynamic compressors

Dynamic compressors increase gas pressure by transferring kinetic energy to the fluid, which is then converted to pressure through a diffuser. They are ideal for large volumes of air at moderate pressures and operate at high speed, making them suitable for specific applications.