In many chemical enterprises, food industry, medicine, electronic industry and other industries using compressed air energy, unclean compressed air will damage the whole process of other processing processes. Therefore, in order to better improve the service life and reliability of pneumatic mechanical equipment and systems, and ensure the quality of manufactured goods, compressed air should be dried and purified as much as possible.

Power industry

Compressed air, as one of the driving forces of power stations, has very high quality requirements. The relative humidity of the air in the common compressed air of electrical instruments is a mandatory new item in thermal insulation control (DL/T774-2004-7.1.4 Technical Standard for Automatic Control and Maintenance of Thermal Insulation in Thermal Power Plants), which is an indicator to be controlled as far as possible to ensure the stability of the optimized system.

Biopharmaceutical industry

The quality of common pneumatic valves used in manufacturing pharmaceuticals should meet the requirements of ISO8573-1 (GB/T13277-91) 1-2-1: particle size distribution of solid particles<=0.1um, oil content<=0.01mg/m ³£¬ Pressure * below - 40 ¡ã C.

Machinery manufacturing

In the automotive industry, the coating process has a great demand on the quality of pneumatic valves. The compressed air quality is the main processing process for the production and manufacturing of automobiles.

PCB industry

The PCB field also has high requirements for the quality of compressed air. The oil content should be guaranteed to level 1, the solid particle level should be guaranteed to level 2, the pressure * should be guaranteed to level 3, and the * value should be guaranteed to - 20 ¡æ.

1. Requirements for pressure and flow: There are regulations for the pressure and flow of compressed air in all places where it is necessary to compress air. At present, the general pressure is around 0.7Mpa. In some different places, the steam pressure is required to be around 0.2~0.4Mpa; In some military industrial production, the pressure requirement for compressed air is likely to be tens of Mpa.

2. Requirements for dry and humidity (i.e. water content or * temperature): Different processing processes have different requirements for compressed air * temperature. For example, as for the instrument panel in the vehicle, the pressure * of compressed air is generally required to be below - 40 ¡æ, while for the integrated circuit chip factory, the pressure * of compressed air is required to be - 70 ¡æ, but in most sites, the * temperature of compressed air is required to be above 0 ¡æ. The * requirements of compressed air are generally carried out by the dryer equipment.

3. The requirements for cleanliness level (relatively complex, including: solid substances, oil mist, microorganisms, harmful substances, etc.) are solved by compressed air filter screen. The analysis and application of data information and scientific research confirm that the air pollution of compressed air will significantly reduce the stability and service life of the operating system and electronic devices, leading to the damage of the whole process of processing technology. Due to the air pollution of compressed air, the damage of components expands by 2~7 times, and the damage of electronic components accounts for about 80% of the total number of units.