Internal combustion cylinder-type ultra-low nitrogen burner

Abstract

The invention discloses an internal combustion cylinder-type ultra-low nitrogen burner in the technical field of burners. The internal combustion cylinder-type ultra-low nitrogen burner comprises a mixing box, wherein the front end of the mixing box is provided with an air intake connecting pipe; the air intake connecting pipe is connected with an air outlet of an air blower; an air uniform deviceis arranged in the mixing box; the air uniform device comprises an air uniform end plate and an air uniform sleeve plate; the front end of the air uniform sleeve plate is fixedly connected with the edge of the air uniform end plate; a position between the rear end of the air uniform sleeve plate and the rear end of the mixing box is sealed through a rear end plate; a first air uniform hole is formed in the air uniform end plate; a second air uniform hole is formed in the air uniform sleeve plate; the mixing box is provided with an ignition electrode; and the ignition electrode extends into the air uniform device. According to the internal combustion cylinder-type ultra-low nitrogen burner, flame forms a cross-dimensional network burning in the air uniform device; and the burner has the advantages such as high temperature resistance, long service life, simple and low-cost manufacture, stable combustion, and low-cost combustion maintenance, and can effectively achieve low nitrogen, energy saving and environmental friendliness, and be modified directly on a boiler, thereby being safe to use.

Description

technical field [0001] The invention relates to a burner, in particular to an internal combustion cylindrical ultra-low nitrogen burner. Background technique [0002] With the development of society, environmental issues are increasingly concerned by the international community. In my country, the contradiction between energy supply and demand and environmental pollution is becoming more and more prominent, and the frequency of acid rain is increasing. Therefore, the country pays more and more attention to the environmental protection industry. The new smoke emission standard reduces the smoke concentration, SO 2 , NO X , CO emissions. Due to the improvement of national policies on emission requirements and the extensive application of various gases, the development of low NO X High-quality burners will become the needs of energy saving and environmental protection. [0003] In order to achieve the national 30mg / Nm 3 low NO X There are usually two solutions for burners...

AI Technical Summary

Problems solved by technology

[0003] In order to achieve the national 30mg / Nm 3 low NO X There are usually two solutions for burners in the current technology: one is to add FGR flue gas recirculation pipes to conventional burners, but this will cause a significant increase in the cost of the burner and have a higher impact on the boiler body or fan. Requirements, increase boiler manufacturing and operating costs; the second is to directly use the surface fully premixed burner, which is expensive, and due to air quality dust and other problems, it is easy to cause blockage of the metal fiber mesh, resulting in burnout or deflagration, and safety accidents, so This type of structure is not easy to expand according to national requirements

In order to solve this problem, some planar burners with air-water-cooled finned tube structure have begun to appear on the market, but the structure is still relatively complicated overall, and the cost is still relatively high

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