The compressor is the main part of a refrigeration cycle. The term "Compressor" means a compressor that provides energy exchange conditions by compressing the refrigerant gas in refrigeration cycles. In normal and normal conditions, heat flows from a warmer environment to a colder environment, but refrigeration systems with the help of a compressor create conditions for heat to move from a cold environment to a hot environment. The HVACR compressor is a refrigerant gas pump where the evaporator supplies gaseous refrigerant at a low pressure and increases it to a higher pressure. As it is compressed, the temperature and pressure of the vapor increases. Gas refrigerant is delivered to the condenser at a pressure where the temperature occurs at the appropriate temperature.
Air compressor
Air enters the piston or vane and is compressed by increasing the pressure and decreasing its volume at the same time. As soon as the pressure reaches the maximum set by the operator or the manufacturer, a switch mechanism prevents the compressor from receiving more air. Compressed air is used and the pressure level is reduced. As soon as the pressure reaches a minimum, also set by the operator or the manufacturer, the switch allows air to enter the compressor. This method is repeated until the compressor is used.
Compressor types
Rotary Compressor:
Rotary type compressors are generally low-capacity equipment, typically used in domestic refrigerators and freezers, and not for air conditioning. This type of compressor can consist of a vane that is placed in the body and sealed in front of the rotor or multi-purpose rotary with the vanes that are in the rotor.
Escape compressor From the center (centrifugal compressor): Centrifugal compressors rotate at high speed and the refrigerant is compressed by applying centrifugal force. Centrifugal compressors are typically used with refrigerants that have a higher specific volume that requires a lower compression ratio. To achieve higher discharge pressures, multi-stage units can be used, and the number of stages is determined by the gas exiting the rotor with the gas discharge temperature. Centrifugal compressors are used for cooling water in air conditioning and for freezing purposes at low temperatures.
Reciprocating compressor:
Reciprocating compressors have pistons and move in the form of cylinders. Types of reciprocating compressors include:
Open compressors : One end of the crankshaft is removed from the crankshaft, so multiple drives can be used with the compressor. The mechanical seal is used to check the external leakage of coolant and oil and the escape of air to the inside. These compressors are powered by electric motors or internal combustion engines. With a belt drive, speed changes are achieved by changing the dimensions of the pulleys, while with direct drive units the compressor is programmed to operate at engine speed.
Hermetic compressors: This Compressors are hermetically sealed where the motor and compressor are enclosed in a housing, while in the welded hermetic type the compressor and motor are sealed in a welded steel shell. is.
Compressor application
Repair shop supplies: Various types of compressors are widely used in repair shops of household appliances, automobiles and military industries, and its main use is to use compressed air for repair work such as opening and closing. screwing, cleaning with compressed air, increasing tire pressure and lifts are used. And centers and places that are equipped with gas piping system A compressor is used, and the reason is that the gas flows into the pipe with the right pressure. Refrigeration and thermal equipment: When we pressurize the gas, it is hot. and when we eliminate or reduce this pressure, it starts to cool. This mechanism allows the compressor to be used in cooling and heating devices and systems, and its main use is in devices such as refrigerators, air conditioners, etc.
Jet engine:
b> One of the applications of various types of compressors is inside the jet engine and the reason is that we need compressed air for ignition inside the jet engine. The compressor helps to create compressed air so that we can ignite the engine to start it. have in possession
Airplane and submarine cabin: When the plane flies at a high altitude, the air pressure inside the cabin decreases, and in order to balance the pressure inside the cabin, various types of compressors are used. Special equipment is used for this purpose, which means that air is injected into the cabin. Under the sea, a compressor is used for this purpose to create the air needed for breathing, because the air decreases in the depth of the sea. Another application of various types of compressors under the sea is for diving work, with the help of which you can have the air needed for breathing for a long time. Petrochemical industries: To extract oil and gas, by applying mechanical and chemical processes, materials such as plastic, gasoline, etc. are produced, and in this process, a compressor is used to compress the gases.
Heavy machinery : in light and heavy vehicles The need for a compressor is necessary, and one of these applications is to be able to perform braking by creating compressed air. In heavy machines such as cranes and similar items, air compressors are used to adjust the height.