How to improve the cleanliness of compressed air?

Improving the cleanliness of compressed air means minimizing contaminants in the air. So. We must first understand what pollutants are in the air and how to prevent them.

1. Pollutants in the air

The air around us contains three main types of pollutants: dust, oil and moisture. Concentrations of these contaminants can be quite high, depending on your environment, and are further increased when air is compressed (such as in pneumatic conveying systems).

(1) Dust: In an industrial environment, one cubic meter of air may contain more than 140 million tiny dust particles. Because its particle size is less than 2 microns, it cannot be removed by conventional inlet filters. If these particles are not treated, they can cause damage to your downstream equipment.

(2) Oil: Oil enters the compressed air flow in two ways. One is like moisture, which enters through the air intake in the form of hydrocarbon compounds such as those produced when burning fossil fuels. Another source is the lubrication system of the compressor itself. Therefore, you should choose to use oil-free equipment when transporting food, pharmaceuticals or other products that need to be protected from oil contamination.

(3) Moisture: Air always contains moisture, including water vapor and condensed water. Water vapor is the primary contaminant by volume and enters the compressed air system through the air inlet. If moisture is left in the compressed air, it can cause equipment corrosion, reduce service life, and increase maintenance requirements.

2. How to reduce pollutants

(1) Add post-processing equipment. Filters, dryers, coolers and other equipment can help users remove contaminants from compressed air.

(2) Reasonably arrange the air compressor room. Choosing an environment with good ventilation and clean air for the air compressor can reduce pollutants in the compressed air from the source.

(3) Choose an oil-free air compressor. Choosing to use a Class 0 certified oil-free compressor means that no oil is added during the compression process.