3.2 Unloading Valve
The unloading valve is used to reset and unload the compressor when the system pressure is too high, or for start/stop operation. The unloading valve should be able to quickly reset the compressor and stop the compressor before the maximum pressure of the system is exceeded.
3.3 Motors and Drive Train
Motors and drive trains are important components of the compressor. Motors directly power the compressor, while drive trains convert the motor torque into piston movement. Motors come in various types, including induction, synchronous, and permanent magnet. Drive trains are also available in a variety of sizes and configurations, including belt, gearbox, and direct drive. Motors and drive trains should be selected to match the compressor size, operating speed, and other conditions.
3.4 Casing and Piping
A compressors casing and piping are important components for properly containing the compressed air and controlling the pressure, temperature, and airflow. The casing and piping should be selected according to the compressors size and type, and should be able to withstand the pressure and temperatures generated by the compressor. The proper plan for laying out the piping system should also be designed to avoid any unnatural pressure drops or turbulence that could impede the compressors performance.
3.5 Gauges and Valves
Gauges and valves are used to control, monitor, and display the pressure, temperature, and air flow in the compressor system, and should be selected to suit the conditions of the compressor. Valves can be manual or automatic and should be chosen to ensure efficient operation of the compressor as well as easy maintenance.
3.6 Safety Devices
Compressors require safety devices to protect against excessive pressures, temperatures, and air flow. Safety devices include pressure relief valves, which open to release air when the pressure reaches a certain level; temperature sensors, which shut off the compressor when a certain temperature is exceeded; and flow sensors, which shut off the compressor when the air flow exceeds a predetermined level.
Conclusion
The components of a compressor are important for ensuring proper operation and efficient use of compressed air. Performance and life of the compressor depend on selecting the appropriate components. Care must be taken to ensure that all components are correctly sized, selected, and laid out for optimal performance.
