An Atlas air compressor is a machine that transports gas and increases gas pressure. It is widely used in many production sectors, especially in petroleum and chemical production. Atlas air compressors are not only indispensable but also critical equipment.

The role and use of Atlas air compressor

After the various gases are increased in pressure by the Atlas air compressor, they generally have the following uses.

1. Compressed gas can be used as power after compressed air to drive various pneumatic machinery and pneumatic tools, as well as control surfaces and automation equipment.

2. Compressed gas is used for refrigeration and gas separation. The gas is compressed, cooled and liquefied for artificial refrigeration. This type of Atlas air compressor is usually called an ice maker or ice machine. If the liquefied gas is a mixed gas, each group can be separated from the ground in the separation equipment to obtain various gases with qualified purity. For example, the separation of petroleum cracking gas is first compressed, and then each group is separated at different temperatures.

3. Compressed gas is used for composition and polymerization In the chemical industry, some gases are beneficial to composition and polymerization after the pressure is increased by the Atlas air compressor. For example, nitrogen and hydrogen form ammonia, hydrogen and carbon dioxide form methanol, and carbon dioxide and ammonia form urea. Another example is the production of polyethylene under high pressure.

4. Gas transportation Atlas air compressors are also used for gas pipeline transportation and bottling. Such as long-distance gas and natural gas transportation, chlorine and carbon dioxide bottling, etc.

Types of Atlas Air Compressors

1. According to the working principle and structure of the air compressor

a. Volumetric air compressor In a volumetric air compressor, a certain volume of gas is first sucked into the cylinder, and then its volume is forced to shrink in the cylinder, the gas molecules are close to each other, the density of the gas per unit volume increases, and the pressure rises High, when a certain pressure is reached, the gas is forcibly discharged from the cylinder. It can be seen that the suction and exhaust process of the volumetric Atlas air compressor is intermittent, and its flow is not continuous and stable.

Positive displacement air compressors can be divided into two types according to the movement characteristics of their compression components; reciprocating piston type (reciprocating type for short) and rotary type. The latter can be divided into rolling rotor type (referred to as rotor type), sliding vane type, screw type (also known as twin screw type), single screw type, etc. according to the structural characteristics of its Atlas air compressor.

b. Speed-type air compressor In the speed-type Atlas air compressor, the addition of gas pressure is converted from the speed of the gas, that is, the inhaled air flow is first obtained at a certain high speed, and then slowed down. , allowing its momentum to be converted into the pressure of the gas, which is then expelled. It can be seen that the compression process in the speed-type air compressor can be carried out continuously, and its flow is stable. The following figure shows the classification of common air compressors and their structure hints.

2. Other classification methods of air compressors

According to the exhaust pressure classification According to the exhaust final pressure of the air compressor, it can be divided into the following categories:

The final exhaust pressure of the low-pressure air compressor is 0.2～1.0MPa (gauge pressure)

The final exhaust pressure of the medium pressure air compressor is 1.0 ~ 10MPa (gauge pressure)

The final exhaust pressure of the high-pressure air compressor is 10-100MPa (gauge pressure)

The final exhaust pressure of the ultra-high pressure air compressor is above 100MPa (gauge pressure)

3. Classification by shaft power size

The shaft power of the small air compressor is between 10 and 50kW

The shaft power of the medium-sized air compressor is between 50 and 250kW

Large air compressor, air compressor shaft power greater than 250kW

4. It can be classified according to the size of the air compressor displacement

The air volume of the micro air compressor is below lm3/min

The exhaust volume of the small air compressor is 1～10m33/min

The air volume of the medium air compressor is 10～100m3/min

Large-scale air compressor discharge volume is 100m3/min