Bidirectional environment-friendly energy saving boiler with three return strokes

Abstract

The invention relates to a bidirectional environment-friendly energy saving boiler with three return strokes, which comprises a boiler body, an inner water jacket and an outer water jacket, wherein a heat collecting plate and a heat collecting tube are extended at the upper part of the inner water jacket; a heat collecting tube is additionally installed in a bent flue; and a dust falling chamber and a dust removing door are arranged at the lower part of a flame outlet. In the invention, combustion chambers of the bidirectional environment-friendly energy saving boiler with three return strokes comprise a reverse combustion chamber and a secondary combustion chamber, and a double-layer water tube grate is arranged below the reverse combustion chamber, thereby having larger heat absorption capacity and fastest heat energy transmission. The invention has the advantages that the flue with three return strokes is used, thus the flue is lengthened in the boiler body so as to be convenient for heating the heat collecting plate and the heat collecting tube; and in addition, the flame in the reverse combustion chamber goes downwards from the gap of the first layer of the double-layer water tube grate, and the tongue of flame directly goes to the second layer of the water tube grate, so the boiler has high heating speed and more heat utilization, saves coal by more than 45%, and can burn industrial and household garbage. The boiler of the invention can be widely applied to large factories and mines, organizations, districts and hotels for heating and bathing. Thus, the boiler of the invention is ideal equipment for meeting the current national requirements of energy saving and emission reduction.

Description

technical field [0001] The invention belongs to a bituminous coal-fired boiler, in particular to a two-way three-pass environment-friendly and energy-saving boiler and a tea bath boiler. Background technique [0002] At present, conventional coal-fired boilers are still used in heating and tea bath furnaces in most areas, and the structure is unreasonable, resulting in insufficient combustion, insufficient use of heat energy, and poor thermal efficiency. Combustibles and heat are discharged into the atmosphere, resulting in waste of energy. Bad situation of polluted air. Contents of the invention [0003] The purpose of the present invention is to propose a new technical solution for the above problems, a two-way three-pass environmental protection and energy-saving boiler. [0004] To achieve the above object, the present invention is achieved through the following technical solutions: [0005] The two-way three-pass environmental protection and energy-saving boiler is ...

AI Technical Summary

Problems solved by technology

[0002] At present, conventional coal-fired boilers are still used for heating and tea bath furnaces in most areas, and the structure is unreasonable, resulting in insufficient combus

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