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Rich oxygen or pure oxygen supply high-temperature air combustion system

A lean-oxygen combustion, oxygen-enriched technology, applied in burners, combustion methods, combustion types, etc., can solve the problems of increasing the amount of flue gas and reducing thermal efficiency, and achieve the effect of reducing nitrogen content, improving heating efficiency, and improving parameters

Inactive Publication Date: 2012-10-31
北京沃克能源科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional oxygen-lean combustion uses air to support combustion. About 79% of the nitrogen in the air increases the flue gas volume, takes away a lot of waste heat, reduces thermal efficiency, and causes the burden of subsequent heat exchange equipment and environmental protection equipment.

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  • Rich oxygen or pure oxygen supply high-temperature air combustion system

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Embodiment Construction

[0015] The present invention includes an oxygen-enriched or pure oxygen device 1, a continuous waste heat recovery device 2, a heating furnace 3, and a high-temperature oxygen-poor burner 4. The oxygen-enriched or pure oxygen device 1 is connected to the continuous waste heat recovery device 2 through a pipeline, and the continuous waste heat recovery device 2 is located in the flue of the heating furnace. The outlet of the continuous waste heat recovery device 2 is connected to the oxygen-enriched or pure oxygen inlet of the high-temperature oxygen-poor burner 4 . The high-temperature oxygen-poor burner 4 is installed on the furnace wall of the heating furnace 3 . The continuous waste heat recovery device 2 is placed in the flue of the heating furnace 3, the pressure obtained from the oxygen-enriched or pure oxygen device 1 is 6000Pa ~ 7000Pa, and the oxygen-enriched air or pure oxygen with an oxygen content greater than 21% enters the continuous waste heat placed in the flue ...

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Abstract

The invention discloses a rich oxygen or pure oxygen supply high-temperature air combustion system, belonging to the technical field of heating furnaces and comprising a rich oxygen or pure oxygen device, a continuous residual heat recovering device, a heating furnace and a high-temperature air combustor, wherein the oxygen enrichment or pure oxygen device is connected with the continuous residual heat recovering device through a pipeline, the continuous residual heat recovering device is positioned in a flue of the heating furnace, an outlet of the continuous residual heat recovering device is connected with a rich oxygen or pure oxygen inlet of the high-temperature air combustor, and the high-temperature air combustor is arranged on the furnace wall of the heating furnace. The inventionhas the advantages of realizing rich oxygen or pure oxygen supply under different heating capacities, reducing content of nitrogen in smoke, and increasing content of triatomic molecules in furnace gas, thereby reducing residual heat carried away by the smoke and improving heat exchange efficiency in the furnace.

Description

technical field [0001] The invention belongs to the technical field of heating furnaces, and provides a high-temperature oxygen-poor combustion system for oxygen-enriched or pure oxygen-supplied air, which can realize high-temperature oxygen-lean combustion for oxygen-enriched or pure oxygen-supplied air, and is applied to heating furnaces using gas fuels , so that the heating furnace saves energy and reduces the emission of nitrogen oxides at the same time. Background technique [0002] The production of heating furnaces has the disadvantages of high energy consumption, high oxidation and burning loss, and a large amount of waste gas. High energy consumption causes the heating furnace to consume a large amount of fuel, wasting energy; high oxidation burning loss causes waste of heated materials; nitrogen oxides in a large amount of waste gas produced form acid rain, which has a bad impact on the environment and at the same time aggravates the global greenhouse effect. Wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23L15/00F23J15/06F23D14/22
CPCY02E20/34
Inventor 郑克明冯娜
Owner 北京沃克能源科技有限公司
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