Fire coal self-controlled boiler

Abstract

The invention provides a fire coal self-controlled boiler, comprising a boiler body and a first return combustion chamber, a second return heat transfer chamber and a third return smoke chamber which are arranged in the boiler body, the first return combustion chamber and the second return heat transfer chamber are communicated by adopting a plurality of first return smoke and fire tubes which are vertically arranged, the second return heat transfer chamber and the third return smoke chamber are communicated by adopting a plurality of third return smoke and fire tubes which are vertically arranged, a plurality of transverse water tubes are arranged in the second return heat transfer chamber, a plurality of transverse water tubes are arranged in the third return smoke chamber, the transverse water tubes in the second return heat transfer chamber are communicated with the transverse water tubes in the third return smoke chamber; a smoke outlet tube which is led out of the boiler body and provided with a smoke outlet is arranged on the third return smoke chamber, and a draft inlet is formed on the smoke outlet tube. The fire coal self-controlled boiler has high combustion efficiency and rapid heat transfer and can automatically control the temperature of outlet water and reduce the temperature of exhaust smoke, the smoke emission is in line with DB11 / 139-2007 emission standards of air pollutants for boiler, and the pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a coal-fired automatic control boiler. Background technique [0002] The rapid development of industrial modernization has brought about energy shortages and environmental protection issues, which are also core issues in today's world. Protecting the environment and using non-renewable energy in a sustainable way are important topics for today's scientific and technological workers to study. As a kind of energy and power equipment, the boiler needs to consume a large amount of energy (coal, oil, gas) resources in order to obtain the steam and hot water required for production and living processes, and the flue gas discharged from the boiler seriously pollutes the environment. Therefore, improving the thermal efficiency of boilers, saving energy and reducing pollution emissions are urgent problems to be solved in the field of boilers. [0003] At present, nearly 85% of the boiler...

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Problems solved by technology

[0004] In order to solve the problems of low boiler thermal efficiency and high exhaust gas temperature in the prior art, the present invention provides a coal-fired self-controlled boiler with high combustion efficiency, fast heat transfer, automatic control of outlet water temperature, lower exhaust gas temperature, and flue gas discharge in line with DB11 / 139-2007 "Boiler Air Pollutant Emission Standard", reduce pollution

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