Boiler

Abstract

The invention discloses a boiler which comprises a combustor, an air supplying device, a smoke discharging device and a coal feeding device. A smoke duct of the smoke discharging device and the coal feeding device are both communicated with the combustor, the air supplying device comprises an air feeder and an air supplying pipe, and the two ends of the air supplying pipe are communicated with the air feeder and the combustor respectively. The boiler further comprises a microwave chamber formed in the lateral portion of the combustor and used for delivering microwaves to the combustor, and the microwave chamber comprises a magnetron, a microwave chamber body and a microwave output window installed on the microwave chamber body. Due to the fact that the microwave chamber delivers the microwaves to the combustor, a large amount of heat is released, coal can be dry through microwave combustion supporting, the utilization rate of the coal can be improved, and resource waste caused by coal gradual discharging is avoided. According to the microwave combustion supporting principle, coal graduals and hot air in the combustor are disturbed through the microwaves to be sufficiently mixed and combusted, sulfur oxide corrosion, nitrogen oxide generation and coal gradual discharging are avoided, environment pollution is reduced, and therefore according to the boiler, the environment pollution can be reduced while resource waste is reduced.

Description

technical field [0001] The invention relates to the technical field of coal combustion devices, in particular to a boiler. Background technique [0002] As a kind of energy conversion equipment, boilers input energy into the boiler in the form of chemical energy in coal, electric energy, heat energy of high-temperature flue gas, etc. After conversion by the boiler, they output steam, high-temperature water or organic heat carrier with certain heat energy. Among them, boilers for coal combustion are more common. Traditional boilers mainly include heat exchangers, combustion chambers, air supply devices, smoke exhaust devices, and coal feeders. It communicates with the combustion chamber, the heat exchanger is installed above the combustion chamber, and the flue of the smoke exhaust device communicates with the combustion chamber. [0003] When the boiler is working, the coal feeder and the air supply device deliver coal and air to the combustion chamber respectively, the co...

AI Technical Summary

Problems solved by technology

Although sending more air can reduce the heat loss of incomplete combustion, the heat loss of exhaust smoke will increase, and the incompletely burned coal particles will be discharged, resulting in waste of resources, and at the same time aggravate the corrosion of sulfur oxides and the formation of nitrogen oxides, resulting in Environmental pollution is more serious

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