A Comprehensive Guide to Choosing the Right Air Compressor for Your Needs

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A Comprehensive Guide to Choosing the Right Air Compressor for Your Needs

An air compressor is a device that converts mechanical energy into gas pressure energy. It is mainly used to compress air and provide air source power. It is widely used in industries such as industrial treatment, and pneumatic tools, providing a stable and reliable air source for all walks of life.

1. Meaning of air compressor

An air compressor is a device that converts mechanical energy into gas pressure energy. It is mainly used to compress air and provide air source power. It is widely used in industries such as industry, medical treatment, and pneumatic tools, providing a stable and reliable air source for all walks of life.

2. Classification of air compressors

Piston air compressor

The working principle is similar to that of a pump, which increases the gas pressure by changing the volume. This type of air compressor is inexpensive, has little effect on the pressure when adjusting the air volume, and is easy to operate. It is widely used in workshops, processing workshops, small factories, auto repair shops, etc. with low gas requirements and small gas consumption.

Slide plate air compressor

The main components of the sliding vane air compressor are the body, rotor, and partition. It has a simple structure and is easy to produce, manufacture, and maintain.

Screw air compressor

Screw air compressors are air compressors widely used in various occasions. Among them, the single-pole compression screw air compressor consists of a pair of yin and yang rotors and is the most common type on the market. The bipolar compression screw air compressor consists of two pairs of yin and yang rotors, with a large compression ratio and a small power demand. Compared with piston compressors, screw compressors have less noise and higher efficiency, but the maintenance cost and consumables cost are relatively high. Screw compressors are mainly used in factories, mines, transportation, water conservancy and other fields, and are the most commonly used air compressors on the market.

Scroll compressor

Small size, high working efficiency, stable operation, its biggest advantage is no noise, the working environment is very quiet, so it is also called super compressor.

Centrifugal compressor

The air pressure is increased by the high-speed rotation of the impeller diffuser. This air compressor has the advantages of large gas volume, simple and compact structure, light weight, small footprint, reliable operation, high operating rate, low friction, and no pollution to the compressed gas. Due to the high technical content of centrifugal air compressors, only a few air compressor manufacturers can currently perform maintenance, so the maintenance cost is high. It is suitable for large chemical and textile enterprises with high requirements for gas quality.

3. Materials used in air compressors

The materials used in air compressors mainly include metal materials and rubber materials.

Metal materials

Stainless steel

It has good corrosion resistance and high temperature oxidation resistance, and is particularly suitable for high pressure and high temperature air occasions, and can operate stably for a long time in harsh environments.

Aluminum alloy

It has the characteristics of light weight and high strength, and is suitable for light load occasions such as electronics and instruments, and is easy to install and move.

Cast iron

It has high thermal conductivity and machining performance, and is suitable for small and medium-sized air compressors, and has good heat dissipation performance.

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Brass and bronze

It has good thermal conductivity and machining performance, and is suitable for manufacturing small pumps and compressors. Bronze also has heat resistance and corrosion resistance, and is suitable for manufacturing key components such as high-pressure seals.

Rubber materials

EPDM

It has excellent corrosion resistance and aging resistance, and is often used to manufacture compressor seals to ensure sealing performance.

Chloroprene (CR)

It has excellent oil resistance and wear resistance, and is suitable for manufacturing seals and transmission belts. It can maintain a long service life in oily and abrasive environments.

Fluororubber (FKM)

It has good acid and alkali resistance, oil resistance, and heat resistance, and is suitable for sealing materials in high temperature, strong acid, and strong alkali environments.

4. Requirements for air compressor selection

Requirements for air compressor selection mainly include the following aspects:

User demand survey

First, it is necessary to investigate the specific needs of users, including parameters such as air pressure, air flow, air temperature and humidity.

Calculate resistance size

Calculate the resistance size between the air compressor outlet and the user point to ensure that the air compressor can meet the actual use needs.

Determine technical parameters

Determine the rated exhaust pressure, exhaust volume, exhaust temperature and other technical parameters of the air compressor, and select the appropriate electronic control and automatic control system.

Economic and environmental protection

When selecting an air compressor, its economy and environmental protection need to be considered. For example, in a power plant, the selection of air compressors needs to focus on economy and environmental protection to meet the needs of power market reform and bidding for access to the grid.

Modular requirements

In thermal control and maintenance work, it is necessary to consider the modular requirements of the compressed air system to meet the operation management, maintenance and parts supply needs of modern power plants.

Mutual backup principle

For air compressors used for thermal control and maintenance, it is recommended to adopt the principle of mutual backup to ensure the quality and stability of air supply .

Equipment parameter determination

When determining equipment parameters, it is necessary to comprehensively consider factors such as air supply capacity, equipment life and operating costs to ensure the efficient operation of the air compression system .

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