Why is airborne oil the most dangerous?

answer:

In places with strict requirements such as B. In pneumatic control, oil droplets can change the condition of air holes. Stop normal automatic operation of the production line. Oil can also swell the seal rings and cylinders of pneumatic valves, slowing them down and even causing severe blockages. In processes carried out in air, etc. Blow parts and oil also cause product shape defects and surface contamination. What are the main causes of oil pollution?

answer:

Most compressed air systems use a lubricating oil compressor, which causes the machine to vaporize the oil into droplets as it works. Next he is formed in two ways.

One is the so-called “dispersed droplets” created by the shearing action of piston compression or blade rotation. Its diameter is 1–5 µm.

The other is "condensed droplets" that are formed when lubricating oil evaporates when cooling a high-temperature body, and the diameter is generally less than 1 μm. Such condensed oil droplets typically account for more than 50% of the total weight of the oil and more than 50% of the actual number of particles in the oil. 99%.

What are the commonly used oil level metrics?

answer:

The volume of spilled oil generally takes a small metric to give a clear indication of its accumulation. 100sefm (standard cubic feet per minute) contains lppmW/W (parts per million weight) in air, equivalent to 150ml of oil flow per month. Can oil-free compressors completely eliminate pollutant production?

answer:

no. Under the most ideal working conditions, this type of compressor also produces more than 0.5 ppmW/W of hydrocarbons. Even based on 100 scfm gas volume, over 15 mL of vaporized condensate is produced per month.

What is a compressed air filter?

A:

A compressed air filter is a device that filters and purifies compressed air. In general, we are talking about precision filters with high efficiency in pipelines of compressed air systems.

How do filters work?

answer:

Common filter elements consist of fibrous media, filter screens, sponges, and other materials. Solid and liquid particles (droplets) in the compressed air condense on the surface (inner and outer) of the filter element after being trapped in the filter material. Droplets and impurities that collect on the surface of the filter element settle to the bottom of the filter by gravity and are discharged either by an automatic dehydrator or manually. What are the characteristics of some common filter types?

answer:

Adsorption (activated charcoal) filters use adsorption power on the surface, and have problems such as a short lifespan and a decrease in the adsorption capacity of the adsorbent when it absorbs oil.

Absorbents, which are the main materials in absorbent filters such as wool, linoleum, and cotton, lose their structural advantages and quickly fail once they are flooded with liquid inside.

Mechanical separators and mesh air filters, typically classified as 5, 10, 20, and 40 microns, are ineffective against the smaller particles that make up the majority of oil droplets.

What are the properties of the fiberglass material used for filtration? answer:

Glass fiber can very effectively separate lubricating oil droplets with a diameter of 50-0.01μm and does not need to be absorbed or adsorbed when filtering. And it is very effective and better than other materials. 

Lingyu coalescing compressed air filter for moisture removal