Secondary oxygen supply combustor

Abstract

The utility model belongs to the technical field of combustion equipment, and particularly discloses a secondary oxygen supply combustor which comprises a base plate and an energy gathering ring, an air disc covers the base plate, a premixing cavity is formed between the air disc and the base plate, a nozzle is arranged in the premixing cavity, the energy gathering ring covers the air disc, and an air cavity is formed between the energy gathering ring and the air disc. A plurality of first air outlet holes are formed in one side of the air disc, an air inlet hole is formed in the bottom of the air disc, a combustion assembly is erected in the middle of the air disc, a fire ring covers the combustion assembly, and second air outlet holes are formed in the side, close to the fire ring, of the energy gathering ring. Oxygen in the pre-mixing cavity can be brought into the combustion assembly when gas is injected into a subsequent nozzle, it is guaranteed that the gas supply amount of the combustion assembly is consistent with the oxygen supply amount of the oxygen, when the combustion assembly works, the oxygen can be conveyed to the combustion assembly through a second gas outlet hole, and gas is supplied to the combustion assembly in the working process for the second time so that sufficient combustion of the combustion assembly can be guaranteed.

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