What is a compressor and what is it used for?

1. What is a compressor?

A compressor is a mechanical device that compresses a gas or liquid into a high-pressure state. It has a wide range of applications in refrigeration, air conditioning, painting, gas turbines and other fields. According to its working principle and construction method, compressors can be divided into reciprocating compressors, screw compressors, centrifugal compressors and other types.

Second, the purpose of the compressor.

1.Manufacture of refrigerants necessary for refrigeration systems.

The compressor is one of the key components in many refrigeration systems, which is used to compress the refrigerant into a high-temperature and high-pressure gas, which is then cooled by a heat exchanger into a liquid at a low temperature and low pressure. During refrigeration, the refrigerant needs to circulate between the condenser and evaporator to absorb and release heat.

2.Compresses air into a high-pressure gas.

Air compressors are also a widely used type of compressor. Its main role is to introduce air from the outside into all parts of the machine and equipment, causing it to produce high pressure and large pressure differences. In this way, it is possible to ensure the proper functioning of these devices, as well as the safety and efficiency of the equipment.

3.Improve industrial production efficiency.

Compressors are widely used in machinery manufacturing, automobile manufacturing, chemical production and other industries. It can compress the raw material into a high-pressure state, which improves the density and consistency of the material. In this way, the voids in the material can be reduced, thereby reducing the volume and weight of the material, and playing a role in saving resources and improving efficiency in industrial production.

A compressor is a driven fluid machine that lifts a low-pressure gas into a high-pressure one. It is the heart of the refrigeration system, which sucks low temperature and low pressure refrigerant gas from the suction pipe, compresses it through the motor operation and drives the piston, and discharges the high temperature and high pressure refrigerant liquid to the exhaust pipe to provide power for the refrigeration cycle, so as to realize the refrigeration cycle of compression, condensation, expansion, evaporation (heat absorption).

There are two types of compressors: piston compressors and screw compressors.

A piston compressor is generally composed of a housing, an electric motor, a cylinder block, a piston, a control device (starter and a thermal protector) and a cooling system. There are two types of cooling methods: oil cooling and natural cooling.

Generally, the compressors of household refrigerators and air conditioners use single-phase alternating current as the power source, and their structural principles are basically the same. The refrigerants used in both are different.

Class. According to its principle, compressors can be divided into positive displacement compressors and speed compressors. The volumetric type is divided into reciprocating compressor and rotary compressor; Speed compressors are further divided into: axial compressors and centrifugal compressors.

At present, the compressors of household refrigerators and air conditioners are all volumetric type, which can be divided into reciprocating type and rotary type. Reciprocating compressors use pistons, cranks, connecting rod mechanisms or pistons, cranks, and slide pipe mechanisms, and rotary compressors are mostly rolling rotor compressors. In commercial air conditioners, they are mostly centrifugal, scroll, and screw.

According to the application range, it can be divided into low back pressure type, medium back pressure type and high back pressure type. Low back pressure type ( evaporation temperature -35 15 is generally used in household refrigerators, food freezers, etc. Medium back pressure type ( evaporation temperature -20 0 is generally used in cold drink cabinets, milk refrigerators, etc.

High back pressure type ( Evaporation temperature -5 15 It is generally used in room air conditioners, dehumidifiers, heat pumps, etc.

The compressor is a driven fluid machinery that lifts low-pressure gas into high-pressure gas, and is the heart of the refrigeration system. The compressor sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, and after the piston is driven by the motor to compress it, the high-temperature and high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for the refrigeration cycle. Lead removal to achieve a compression-condensation (exothermic)-expansion-evaporation (endothermic) refrigeration cycle.

Demonstrator: Gree KFR-35GW NHAA1BAJ

System version: inverter air conditioner Compressor is a driven fluid machinery that lifts low-pressure gas into high-pressure gas, and is the heart of the refrigeration system. The compressor sucks in the low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it through the motor operation and drives the piston, and discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle.

In this way, the refrigeration cycle of compression-condensation (exothermic)-expansion-evaporation (endothermy) is realized.

According to its principle, compressors can be divided into positive displacement compressors and speed compressors. The volumetric type is divided into reciprocating compressor and rotary compressor; Speed compressors are further divided into: axial compressors, centrifugal compressors and mixed-flow compressors.

Nowadays, household refrigerators and air conditioner compressors are all positive displacement type, which can be divided into reciprocating and rotary type. Reciprocating compressors use pistons, cranks, connecting rod mechanisms or pistons, cranks, and slide pipe mechanisms, while rotary compressors mostly use rolling rotor compressors. In commercial air conditioners, they are mostly centrifugal, scroll, and screw.

The compressor is the power core of the refrigeration system of the air conditioner, which can increase the temperature and pressure of the low-temperature and low-pressure refrigerant vapor of the absorber through compression, so that the refrigerant inside can be moved, and the refrigeration effect can be achieved through heat power conversion. If the refrigeration system is compared to the human body system, the refrigeration compressor is one of the most important components in the refrigeration system, and it is the core and heart of the steam refrigeration system. The following is an introduction to the compressor:

1. Absorb the refrigerant vapor from the evaporator to ensure a certain evaporation pressure in the evaporator; Increase the pressure to compress the low-pressure and low-temperature refrigerant vapor into high-pressure and high-temperature superheated vapor to create the conditions for condensation at higher temperatures; Transporting and driving the flow of refrigerant through the system to complete the refrigeration cycle; It can be seen that the increase of refrigerant vapor from low pressure to high pressure and the continuous flow and transportation of vapor are all completed with the help of refrigeration compressors. 2. Refrigeration compressors are divided into volumetric refrigeration compressors and speed refrigeration compressors according to the principle of increasing gas pressure. The refrigerant vapor is compressed directly in a closed volume with variable volume, reducing its volume and thus increasing the pressure, and this compressor is called a positive displacement refrigeration compressor.

Volumetric refrigeration compressors mainly include reciprocating (also known as piston type), screw type, scroll type, rolling Zen bishu rotor type, sliding vane type and rotary vane type.

A compressor is a type of erection resistant equipment used to compress gas or vapor into a high-pressure state. Its main function is to increase the pressure and density of a gas or vapor so that it can be stored or used for a specific industrial process.

Compressors play an important role in many different applications, including:

1.Refrigeration and Air Conditioning Systems: Compressors are used in refrigeration and air conditioning systems to compress refrigerants into high-pressure gases, achieving refrigeration through condensation and expansion processes.

2.Gas Storage: Compressors can store gas in high-pressure vessels, e.g. for industrial gas storage tanks or gas transmission pipelines.

3.Industrial Production: In many industrial processes, compressors are used to supply compressed gases, such as for power transmission, painting, spraying, drying, etc.

4.Oil & Gas Industry**: Compressors are used to provide high-pressure gases for pressurized transportation**, natural gas, and compression operations in refining and chemical processes during oil and gas extraction and processing.

5.Food & Beverage Industry: Compressors are used in food and beverage processing to provide compressed air, such as for pneumatic conveying, canning, packaging, etc.

6.*Medical Devices**: In medical devices, compressors are used to provide compressed air, such as for oxygen**, medical gas delivery, etc.

Overall, compressors play a vital role in a variety of industries, providing essential compressed gases and energy for many industrial and domestic processes.

The compressor in the air conditioner is one of the most important components in the system, mainly playing the role of pressurization and refrigerant delivery. Its main features are:

1.Increase the pressure and temperature of the refrigerant. During the operation of the air conditioner, the compressor inhales the refrigerant gas at low pressure and low temperature, reaches high pressure and high temperature through mechanical compression, and then discharges it.

This pressurization process increases the temperature and pressure of the refrigerant at the same time, which provides power for the subsequent heat exchange process of Ludan.

2.The refrigerant gas is delivered to the condenser at high pressure and high temperature. The compressor discharges the compressed high-pressure, high-temperature refrigerant gas and pushes it into the condenser, which requires a certain amount of pressure to overcome resistance and friction within the system.

Therefore, the compressor plays the role of delivering power to the refrigerant and pressing it from the low-pressure side to the high-pressure side.

3.Maintain pressure balance within the system. There is a large localized pressure gradient inside the air conditioning system, from a low-pressure evaporator to a high-pressure condenser.

The work of the compressor is to maintain a relatively balanced pressure inside the system by narrowing this pressure difference, otherwise it will affect the operating efficiency and early service life of the air conditioner.

The function of the compressor is: to adjust the start and stop state of the air compressor, and to let the air compressor stop by adjusting the pressure in the air storage tank, which has a maintenance effect on the engine.

Compressors are one of the indispensable key equipment in the mining, metallurgy, machinery manufacturing, civil engineering, Shizhaoluju oil and chemical industry, refrigeration and gas separation engineering, and defense industry.

The principle of the compressor:The work of the piston compressor is completed by the continuous change of the working volume of the cylinder, the valve and the piston that reciprocates in the cylinder. If the volume loss and energy loss in the actual operation of the piston compressor are not considered (i.e., the ideal working process), the work completed by the crankshaft of the piston compressor per rotation can be divided into suction process, pressure contraction and exhaust process.

Compressors are one of the indispensable key equipment in the mining, metallurgy, machinery manufacturing, civil engineering, petrochemical industry, refrigeration and gas separation engineering, and defense industry.

2.The compression machine is a kind of machine that compresses gas to increase gas pressure or transport gas, and is extremely widely used.

3.In addition, the demand for medical care, textiles, food, agriculture, transportation, and other sectors is also increasing. Compressors are widely known as "general machinery" because of their wide range of uses.