Multi-nozzle alcohol-based burner

Abstract

The invention discloses a multi-nozzle alcohol-based burner. The device comprises an air duct outer pipe and a multi-sage fuel supply unit, wherein multi-stage air duct pipes are coaxially arranged inside the air duct outer pipe in sequence; the air duct pipe located at the most center is a first-stage air duct pipe; the outside of the first-stage air duct pipe is sleeved with a second-stage air duct pipe; an ignition device, an air duct cyclone and an annular air distributor are arranged at the inlet of the first-stage air duct pipe; a central nozzle is arranged in the inner ring of the air duct cyclone; and the central nozzle is connected with a central branch pipe; the fuel supply units respectively communicate with a plurality of annular branch pipes; and the plurality of annular branch pipes are parallel to the center line of the multi-stage air duct pipes and are circumferentially arranged around the outer side of the second-stage air duct pipe. According to the multi-stage zonedcombustion technology, a rich combustion zone and a quenching zone are formed in the first-stage air duct pipe, and a lean combustion zone is formed at the outlet of the first-stage air duct pipe, sothat atomized liquid and combustion air are fully mixed; combustion is complete, and nitrogen oxide emission is reduced; and variable load regulation of the burner is achieved using the multi-stage fuel supply unit.

Description

technical field [0001] The invention belongs to the technical field of burners, in particular to a multi-nozzle alcohol-based burner. Background technique [0002] At present, environmental protection issues are imminent, emission standards are becoming increasingly stringent, and new standards and regulations for NOx emissions have emerged one after another. In order to meet current environmental protection requirements, traditional fuel and coal-fired furnaces will be eliminated, and the demand for clean energy fuels has been put on the agenda. However, clean Organization of how energy fuels are burned has become a top priority. The existing technology uses methanol as fuel, and designs methanol reformers, stoves, and gasification burners to provide heat sources, but the methanol combustion device technology is immature, the atomization is uneven, the combustion is insufficient, the energy utilization rate is low, and the nitrogen oxides Emissions are not up to standard a...

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Problems solved by technology

[0003] Aiming at the defects and deficiencies in the prior art, the present invention provides a multi-nozzle alcohol-based burner, which overcomes the above-mentioned defects of the existing combustion device, solves the problem that the discharge of nitrogen oxides in the flue gas at the tail of the boiler is not up to standard, and at the same time, in the field of combustion promote clean fuel

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