The pressure vessel of the oil-free air compressor is an important part of it, and its role is responsible for storing compressed air, and regulating and maintaining the pressure of compressed air. This paper will introduce the pressure vessel of oil-free air compressor in detail, including its structure, working principle, selection and maintenance.
First, the structure of the pressure vessel of the oil-free air compressor
The pressure vessel of oil-free air compressor is usually composed of shell, head, flange, safety valve, drainage valve, pressure gauge and so on.
1. Shell
The shell is the main part of the pressure vessel, which is generally made of steel plate and processed by welding, riveting or forging. The main function of the shell is to withstand the pressure and weight of the internal medium to ensure that the medium does not leak or explode.
2. Head
The head is located at both ends of the shell and is also an important part of the pressure vessel. Generally, it adopts the shape of disc, hemispherical or oval, and is connected with the shell by welding, riveting or bolted connection. The main function of the head is to close the container, withstand the pressure of the internal medium and the bending stress of the shell.
3. Flange
Flange is an important part of connecting the pressure vessel with the pipeline or other equipment, generally using ring parts, with bolt holes welded. The main function of the flange is to connect the pressure vessel and the pipeline or other equipment that delivers compressed air.
4. Stabilize the valve
Stability valve is an important safety equipment to protect the pressure vessel, its role is to automatically open when the pressure reaches a certain value, release too high pressure to avoid the explosion of the vessel. The stability valve is usually mounted on the housing to adjust and control its opening pressure value.
5. Drain valve
The drainage valve is an important accessory in the pressure vessel, and its main function is to remove the water and impurities stored in the container to ensure the drying and cleaning of the compressed air. The drainage valve is generally located at the bottom or side of the container and can be manually or automatically controlled.
6. Pressure gauge
Pressure gauge is an important instrument to measure the internal pressure of the pressure vessel, which is generally installed on the upper part of the container or the pipeline, and connected to the container through the pipeline. The reading of the pressure gauge directly reflects the pressure inside the container, which is an important reference for the operation and maintenance of oil-free air compressors.
Second, the working principle of the pressure vessel of oil-free air compressor
The working principle of the pressure vessel of the oil-free air compressor is to compress the air through the compressor and store it in the container, and realize the supply of the aerodynamic equipment by controlling the air flow and pressure. When the compressed air flow is insufficient, the air compressor automatically starts, continues to compress and transport the compressed air to the container to keep the air pressure in the pressure container stable.
During the use of the pressure vessel of the oil-free air compressor, the pressure and capacity need to be set according to the actual needs to meet the needs of different aerodynamic equipment. When the pressure inside the container reaches a certain value, the stability valve will automatically open and release the excessive pressure to ensure the stable operation of the container. The function of the drainage valve is to remove the water and impurities inside the container to ensure the quality and dryness of the compressed air.
Three, oil-free air compressor pressure vessel selection
The selection of pressure vessels for oil-free air compressors needs to consider many factors, such as capacity, pressure, temperature, material, stability and economy. The following are common selection points.
Step 1: Capacity
Capacity is one of the important factors in the selection of pressure vessels for oil-free air compressors, and it is necessary to choose the appropriate capacity according to the actual needs to meet the needs of aerodynamic equipment. The capacity of the container is generally used to express the capacity of the container to store compressed air, usually in liters or cubic meters.
2. Stress
Pressure is one of the important factors in the selection of pressure vessels for oil-free air compressors, and it is necessary to choose the appropriate pressure level according to the actual needs to meet the needs of aerodynamic equipment. The pressure rating of the container is generally used to indicate the larger working pressure of the container, usually in MPa or Bar.
Step 3: Temperature
Temperature is one of the important factors in the selection of pressure vessels for oil-free air compressors, and it is necessary to choose the appropriate temperature grade according to the actual needs to meet the needs of aerodynamic equipment. The temperature grade of the container is generally used to indicate the higher operating temperature of the container, usually in ° C.
Step 4: Materials
Materials are one of the important factors in the selection of pressure vessels for oil-free air compressors, and appropriate materials need to be selected according to actual needs to meet the needs of aerodynamic equipment. Common materials include carbon steel, stainless steel, aluminum alloy and so on.
Step 5: Stability
Stability is one of the important factors in the selection of pressure vessels for oil-free air compressors, it is necessary to ensure that the container has sufficient stiffness and strength to withstand internal pressure and external load, and it is also necessary to consider its explosion-proof, anti-corrosion, shock-proof and other aspects.
6. Economy
Economy is one of the important factors in the selection of pressure vessels for oil-free air compressors, and it is necessary to consider the price, maintenance costs, life and operating costs of the vessels to choose the best scheme.
Four, oil-free air compressor pressure vessel maintenance
The maintenance of the pressure vessel of the oil-free air compressor needs to be carried out regularly to ensure its stable and reliable operation. The following are common maintenance points.
1. Regularly check the working status of the safety valve, pressure gauge, drainage valve and other accessories of the pressure vessel to ensure their normal operation.
2. Regularly clean and remove the water and dirt inside the pressure vessel to ensure the quality and dryness of the compressed air.
3. Regularly check the tightness of the pressure vessel and the strength of the shell to find and timely repair problems such as air leakage or deformation.
4. Regularly paint and anti-corrosion treatment of pressure vessels to improve their corrosion and rust resistance and extend their service life.
5. Conduct regular stability assessment and inspection of pressure vessels to ensure that they comply with relevant stability standards and regulations.
To sum up, the pressure vessel of oil-free air compressor is an important part of it, which undertakes the important task of storing compressed air and regulating pressure. Many factors need to be considered in the selection and maintenance to ensure its stable and reliable operation and provide reliable guarantee for the operation of aerodynamic equipment.
Get more knowledge about What to Look for When Choosing an oil free air compressor Manufacturer please refer to aoguang air compressor：https://www.oil-freeaircompressor.com