Working Principle of the Refrigeration Compressor
Refrigeration compressors are the components of refrigeration systems that are responsible for compressing the refrigerant gas and increasing its pressure. This increased pressure forces the refrigerant through the rest of the system and enables the evaporation or condensation process to occur. The evaporator absorbs heat from the area being cooled and the condenser gives off this heat to the air or water. Refrigeration compressors come in a variety of designs and are manufactured by a number of companies.
The most common type of refrigeration compressor is the reciprocating compressor. This type of refrigeration compressor utilizes a piston and a crankshaft to compress the refrigerant. The piston travels in a linear fashion and is sealed within a cylinder. The crankshaft turns the piston and allows it to do work on compressing the refrigerant. The amount of compression can be adjusted by turning a thermostat.
Other types of compressors include scroll, centrifugal, rotary, scroll and reciprocating scroll compressors. Scroll and reciprocating scroll compressors use two scrolls, which rotate in opposite directions to compress the refrigerant gas. Centrifugal and rotary compressors are both high-speed machines that rotate a blade to compress the refrigerant.
Lubrication is an important factor in ensuring that a refrigeration compressor runs correctly and efficiently. Compressors use oil to lubricate the moving parts. The oil also helps to reduce the amount of metal-to-metal contact and keeps the metal surfaces from sticking together. The oil also helps to keep the temperatures within the compressor at a constant level and helps to reduce the amount of friction loss.
The type, quantity and viscosity of the oil used also play an important role in determining how well the compressor will perform. The oil should be able to handle the temperatures generated within the compressor and should be able to keep the surfaces lubricated without becoming too thick or thin. The type and quantity of lubricant will typically be indicated in the manufacturers manual.
Its important to note that the lubrication process is not limited to changing the oil in the compressor. Proper maintenance is also required for the compressor, including changing the oil filter, cleaning and inspecting the seals, and checking for leaks.
Proper lubrication is essential for minimizing wear and tear, as well as for eliminating the risk of catastrophic failure. By keeping up with proper maintenance and lubrication practices, you can ensure that your refrigeration compressor will operate efficiently and last for years to come.
