Air furnace patent

Oxygen-enriched combustion is safe and feasible. Oxygen is combustion-supporting, and it is a non-combustible gas. So air with high oxygen content is not dangerous. But in theory, it is not cost-effective to use 30% oxygen-enriched air unless the cost of oxygen is very low. Generally, oxygen-enriched combustion is based on the premise that the cost of oxygen production is very low. For example, enterprises have nitrogen generators. In oxygen-enriched combustion, the effect can be achieved when the oxygen content in the air reaches 26%.