Industrial boiler energy-saving and emission-reducing device

Abstract

The invention provides an industrial boiler energy-saving and emission-reducing device which comprises a boiler, a sclerometer, a low nitrogen generator, an induced draft fan, a fire grate, a hearth,a water pipe, a water treatment device, a water level gauge, a thermal insulating layer, a furnace wall, a smoke pipe and a sewage discharge outlet, wherein the sclerometer is fixed on the side part in front of the boiler through a bolt; the water treatment device is fixed on the left side of the boiler through the bolt; and the low nitrogen generator is fixed on the right side of the boiler through the bolt and is connected with the hearth through the smoke pipe. The water treatment device, the low nitrogen generator and the sclerometer are arranged to filter and soften the raw water, so thatthe boiler fed water quality is ensured, the boiler operates in a non-fouling manner and the thermal efficiency of the boiler is improved; the low nitrogen generator circulates flue gas to feed a mixture of low temperature flue gas and water vapor into the hearth, so that oxygen concentration is reduced, and low-nitrogen combustion of fuel and low-nitrogen emission of flue gas are facilitated; the sclerometer monitors the hardness number in the boiler in real time to ensure that the water quality in the boiler is normal and facilitate market popularization and application.

Description

technical field [0001] The invention belongs to the technical field of industrial boilers, in particular to an energy-saving and emission-reducing device for industrial boilers. Background technique [0002] Industrial boilers are used for power generation or gas supply. For example, chemical fertilizer plants can be vaporized with steam, and coal is used as raw material to synthesize fertilizers. This is a typical industrial boiler. The majority of industrial boilers still burn coal. Recovery of waste heat, industrial boilers are common circulating fluidized bed boilers, industrial boilers are important thermal power equipment, my country is the country that produces and uses the most boilers in the world today, and China's manufacturing industry was established and developed after the founding of New China. Energy conservation and emission reduction means saving energy, reducing energy consumption, and reducing pollutant emissions. Energy conservation and emission reduction ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides an energy-saving and emission-reducing device for industrial boilers to solve the problem that the raw water of the existing energy-saving and emission-reducing devices for industrial boilers does not meet the use standards before entering the boiler, and the water contains harmful impurities or salt. In the end, scale will be formed, the oxygen concentration in the furnace is relatively high when the fuel is burned, and low-nitrogen combustion cannot be carried out. The temperature of the flue gas is high when it is discharged, which wastes a lot of energy. There is no corresponding boiler water hardness monitoring device.

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