The role of refrigeration compressor, refrigeration air-conditioning compressor what is its role?

The role of refrigeration compressor, refrigeration air-conditioning compressor what is its role?

We know that both refrigerators and refrigerators need a powerful compressor to make them work properly. The compressor is the core component of the refrigerator, equivalent to the human heart, and the refrigerator uses advanced technology, high quality compressor, the utility model can extend the service life of the refrigerator, improve the refrigeration effect of the refrigerator, and reduce the energy consumption and noise of the product. The main role of the compressor is the motor as a power, drive the compressor rotation, so that the piston in the cylinder reciprocating movement, thus driving the refrigerant flow in the system, the working process of the compressor is suction, compression, a cyclic process of exhaust and expansion.

The role of refrigeration compressor is:

1) from the evaporator to absorb refrigerant vapor to ensure a certain evaporating pressure in the evaporator.

2) increase the pressure and compress the refrigerant vapor at low pressure and low temperature into superheated vapor at high pressure and high temperature in order to create the conditions for condensation at higher temperature, such as about 35 ° C in summer.

3) transport and promote the refrigerant flow in the system to complete the refrigeration cycle.

In the air conditioning refrigeration system, the compressor plays the role of compressing and conveying refrigerant gas. The expansion valve plays the role of throttling pressure reduction, while regulating the flow into the evaporator refrigerant liquid, is the high and low pressure system boundary. Evaporator is the output of cold air equipment, refrigerant in which the heat absorbed by the cooling air, so that air cooling. Condenser is the equipment to release heat, the heat absorbed in the evaporator, the work consumed by the compressor by the heat transferred together from the condenser, cooling air away. Air-conditioning compressor is one of the main components of automobile air-conditioning system, it is a low-pressure and high-pressure refrigeration system, low temperature and high temperature conversion device.

The function of the compressor is to make the inlet of the compressor in a low-pressure state, so that the evaporator carrying latent heat (including heat absorbed in the car) refrigerant flow out of the evaporator, this low-pressure state can make the refrigerant into the evaporator. The low-pressure gas refrigerant is compressed into the high-pressure gas refrigerant. These two functions of the compressor only enter the evaporator. The low-pressure gas refrigerant is compressed into the high-pressure gas refrigerant. The compressor of these two functions as long as there is a failure will lead to the refrigerant cycle in the air conditioning system, the air conditioning system will not work or can not be cooled.

When the air-conditioning system compressor works, the suction valve inhales the refrigerant, and after compression, the refrigerant is discharged from the exhaust valve. The compressor used in automobile refrigeration system can be divided into reciprocating piston type and rotary type according to its motion form, the compressor of automobile refrigeration system can be divided into fixed displacement type and variable displacement type according to whether its working capacity changes or not. The variable displacement compressor can automatically change the displacement according to the cooling load of the air conditioning system, which makes the air conditioning system run more economically. At present, a wide range of swashplate and swing plate compressor. In recent years, swashplate type and rotary type compressors are mostly used in medium and small sized automobiles, and crankshaft connecting rod type compressors are rarely used.

The structure of the crankshaft and connecting rod compressor is similar to that of the engine. It usually adopts the double cylinder structure. The crankshaft turns to drive the connecting rod to make the piston reciprocate movement and inhale and compress the gas. The upper cylinder block of the piston is provided with an inlet and an exhaust valve assembly, and a shaft seal is arranged between the crankshaft and the shell to prevent refrigerant leakage. In order to ensure the normal movement of the components, the crankcase is filled with a specified amount of compressor oil and oil supply facilities. Rotary swashplate compressor, also known as swashplate compressor, is an axial reciprocating piston compressor. At present, it is the automotive air-conditioning compressor in the most widely used one.

The air-conditioning systems of common cars in China, such as Audi, Jetta and Fukang, all adopt swashplate compressor. The piston at the front end of the limit is the end of the exhaust, the other end of the piston is at the end of the inhalation. When the spindle drives the swashplate, the swashplate drives the piston to move axially. The piston moves axially in the front and back cylinders simultaneously, which is equivalent to two pistons moving in both directions. Swashplate rotation around, before and after the completion of a cycle of two cylinders, equivalent to the work of two cylinders.

Swing Plate compressor also known as Swing Plate Type (also known as one-way SWASHPLATE Type) compressor, is an axial piston compressor, reciprocating one-way piston structure. It belongs to the same type as the rotary swashplate type, which is the most widely used type in automobile air conditioning at present. The variable displacement air-conditioning compressor adopts a constant-mesh transmission mode, and the transmission pulley is provided with rubber parts, which not only play the role of transmission and vibration reduction, but also play an important role when the air-conditioning compressor appears overload or lock failure, the rubber parts were cut off to avoid serious mechanical failure.

Shanghai KUB Refrigeration Equipment Co., Ltd.

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