Environment-friendly dense and sparse burner

Abstract

The invention relates to an environment-friendly dense and sparse burner. The environment-friendly dense and sparse burner comprises a plurality of fire grates (1) arranged at intervals in parallel. A plurality of sparse flame hole sets are distributed in each fire grate (1) in parallel. Each sparse flame hole set comprises a plurality of parallel sparse flame holes (2). Each fire grate (1) comprises flame hole side plates (4) and fire grate side plates (5) arranged outside the flame hole side plates (4). The sparse flame holes (2) located in the middle of each sparse flame hole set are narrow, the sparse flame holes (2) located in the two sides of each sparse flame hole set are wide, and the middle narrow sparse flame holes (2) extend to the outer sides of the tops of the flame hole side plates (4) in the length direction. The fire grate side plates (5) are connected through connecting ribs (6), first notches (5.1) are formed in the positions, connected with the connecting ribs (6), of the fire grate side plates (5), second notches (5.2) are formed in the positions, not connected with the connecting ribs (6), of the fire grate side plates (5), and the tops of the fire grate side plates (5) are bent towards the flame hole side plates (4). The environment-friendly dense and sparse burner is environment-friendly and capable of saving energy.

Description

technical field [0001] The invention relates to an environment-friendly thick-lean burner. It belongs to the technical field of burners. Background technique [0002] With the gradual deepening of energy saving and emission reduction policies, the country strongly advocates consumers to use gas water heaters. How to improve the comfort of gas water heaters and reduce the emission of nitrogen oxides is the main direction of water heater development. [0003] There is more oxygen and less gas in the dim flame hole of the thick-thin burner, and the gas burns through the dim flame hole to form a weak flame; there is less oxygen and more gas between the side plate of the fire row and the side plate of the flame hole, and the two form a dense flame hole, and the gas Thick flame is formed through the burning of the thick flame hole, and the existing thick and thin burners have the following problems: 1. The length of the weak flame hole is consistent, and the weak flame hole does ...

AI Technical Summary

Problems solved by technology

[0003] There is more oxygen and less gas in the dim flame hole of the thick-thin burner, and the gas burns through the dim flame hole to form a weak flame; there is less oxygen and more gas between the side plate of the fire row and the side plate of the flame hole, and the two form a dense flame hole, and the gas Thick flame is formed through the burning of the thick flame hole, and the existing thick and thin burners have the following problems: 1. The length of the weak flame hole is consistent, and the weak flame hole does not exceed the top of the side plate of the flame hole. Divide, the actual use of the flame can not be fully burned, the concentration of comprehensive pollutants (including nitrogen oxide concentration and carbon monoxide concentration) after gas combustion is high, and the stability of combustion is poor; 2 The side plate of the fire row is straight in the vertical direction or bent outwards, although this design can hold the flame to maintain its shape, but the thin flame and the thick flame are prone to flame continuation, and at the same time will lead to a high concentration of comprehensive pollutants. According to experiments, the side plate of the fire row When the outer side is bent, the concentration of comprehensive pollutants is the highest, and when the side plate of the fire row is not bent (straight state), the concentration of comprehensive pollutants is second. Both schemes have higher concentration of comprehensive pollutants; 3. Fire row On the top of the side plate, there is only a gap at the connecting rib. Since the connecting rib hinders the mixing of oxygen between the gas and the fire row, the opening here cannot ensure the effective fire transmission between the fire row, which will increase the combustion efficiency. Considering the concentration of pollutants, deflagration will occur in severe cases; 4. The cross-section of the existing filter screen is circular, and because the shape of the low flame hole is "V", the circular filter screen cannot be completely attached to the low flame hole. close, and the filter screen is easy to slide in the low flame hole, which cannot effectively prevent low flame backfire

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