Oxygen-enriched combustion-supporting energy-saving equipment for steel pipe heating furnace

The oxygen-enriched combustion-supporting energy-saving equipment comprises a base, four adsorption towers are arranged on the base side by side, an upper connecting pipe is arranged at the top of each adsorption tower, a pressing air cylinder is arranged at the top of each upper connecting pipe, and the side face of each upper connecting pipe is connected with an air outlet branch pipeline; a middle pressure equalizing pipeline is arranged in the middle of the adsorption tower, is connected to a lower connecting pipe of the adsorption tower in a crossed manner, and is also connected with a gas inlet branch pipeline; the air inlet branch pipelines are gathered to an air inlet main pipeline, and an air inlet is formed in the top end of the air inlet main pipeline; the other side face of the lower connecting pipe is connected with an exhaust pipeline, and the exhaust pipeline is connected with a silencer. A control cabinet is further arranged on the base, and a PLC integrated control system is arranged in the c