Premixed type blast combustion device

Abstract

The invention belongs to the field of fuel devices, and particularly relates to a premixed type blast combustion device. The premixed type blast combustion device comprises an air chamber, a combustion chamber, a diffusion chamber, a steady flow plate, a gas mixing chamber, an air duct and an air blower, and is characterized in that the gas mixing chamber is wrapped with the air chamber; the diffusion chamber is arranged on the gas mixing chamber; the combustion chamber is arranged in the diffusion chamber; flaming holes are formed in the inner walls of the combustion chamber and the diffusion chamber; the steady flow plate is arranged between the gas mixing chamber and the diffusion chamber; a gas nozzle is located in the center position of the gas mixing chamber; a gas inlet is formed in the gas nozzle, and the gas nozzle stretches out of the air chamber; the air duct is arranged at the lower end of the air chamber; and the air blower is arranged at the rear end of the air duct. With the adoption of premixed type combustion, the fuel can be combusted more rapidly and fully, the flame is short, the flame temperature and the heat efficiency of a combustor are improved, the emission of nitrogen oxides and carbon monoxide is reduced, and problems of insufficient combustion of the fuel, low heat efficiency, high energy consumption and relatively higher emission of the nitrogen oxides and the carbon monoxide due to low local temperatures are solved.

Description

Technical field: [0001] The invention belongs to the field of fuel combustion equipment, and in particular relates to a blast premixed combustion equipment. Background technique: [0002] At present, the existing blast burners for commercial stoves basically adopt the strong blast diffusion combustion technology, the fuel combustion is not sufficient, and the strong blast also takes away too much heat, so the thermal efficiency of this combustion technology is low , high energy consumption; at the same time, due to the large air excess coefficient of diffusion combustion and low local temperature, the emissions of carbon monoxide and nitrogen oxides are relatively high, and the pollution and waste caused are huge. Invention content: [0003] The purpose of the present invention is to provide a fully premixed combustion technology, which can fully burn the gas (fuel oil), the flame temperature is as high as 1200 degrees, the flame temperature is relatively uniform, the carb...

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Problems solved by technology

[0002] At present, the existing blast burners for commercial stoves basically adopt the strong blast diffusion combustion technology, the fuel combustion is not sufficient, and the strong blast also takes away too much heat, so the thermal efficiency of this combustion technology is low , high energy consumption; at the same time, due to the large excess air coefficient of diffusion combustion and low local temperature, the emissions of carbon monoxide and nitrogen oxides are relatively high, and the pollution and waste caused are huge.

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