Boiler chimney capable of recovering smoke gas waste heat

Abstract

A boiler chimney capable of recovering flue gas waste heat, comprising a chimney body, a cold water supply tank, and a warm water collection tank. , the chimney inlet tube is welded on the bottom surface of the flue gas heat exchange tube, the exhaust tube is welded on the top surface of the flue gas heat exchange tube, the large chimney cover is installed on the upper end of the smoke exhaust tube, and the small chimney cover is installed on the large chimney Cover the upper end; the flue gas heat exchange cylinder is composed of an inner cylinder and an outer cylinder, and the outer cylinder is welded on the outer wall of the inner cylinder; the upper right end of the outer cylinder is equipped with a first fixing bracket, and the cold water supply The tank is installed on the first fixed frame; the lower left end of the outer cylinder is installed on the second fixed frame, and the warm water collection tank is installed on the second fixed frame. The invention can effectively utilize the residual heat of the flue gas of the boiler to preheat the cold water, effectively utilize the residual heat in the flue gas, improve the thermal efficiency of the boiler, and avoid thermal pollution.

Description

technical field [0001] The invention relates to the field of boiler equipment, in particular to a boiler chimney capable of recovering waste heat of flue gas. Background technique [0002] As a heating equipment commonly used in production and life, boilers are widely used due to their high thermal efficiency. The boiler is composed of furnace, furnace wall, drum, chimney and other components. The chimney is an important part of the boiler. During the combustion process of the boiler, the flue gas is discharged through the chimney. In the prior art, there is generally no flue gas waste heat recovery device on the chimney , the waste heat in the flue gas cannot be effectively used, and a large amount of waste heat in the flue gas will cause thermal pollution to the environment, and the dust impurities in the flue gas will also pollute the atmospheric environment. Contents of the invention [0003] The purpose of the present invention is to provide a boiler chimney tha...

AI Technical Summary

Problems solved by technology

The boiler is composed of furnace, furnace wall, drum, chimney and other components. The chimney is an important part of the boiler. During the combustion process of the boiler, the flue gas is discharged through the chimney. In the prior art, there is generally no flue gas waste heat recovery device on the chimney , the waste heat in the flue gas cannot be effectively used, and a large amount of waste heat in the flue gas will cause thermal pollution to the environment, and the dust impurities in the flue gas will also pollute the atmospheric environment

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