Partial premix combustor

Abstract

The invention discloses a partial premix combustor, which comprises a jet nozzle (1) and an air inlet tube (6). The jet nozzle (1) is communicated with the air inlet tube (6). The partial premix combustor is characterized by further comprising an inner guide ring (2) and an outer guide ring (3). The inner guide ring (2) surrounds the jet nozzle (1), the outer guide ring (3) surrounds the inner guide ring (2), a first mixing area (7) is formed between the inner guide ring (2) and the jet nozzle (1), and a second mixing area (8) is formed between the outer guide ring (3) and the inner guide ring (2). By adopting the structure, the mixing process of gas and air is strengthened, the gas and the air are mixed completely, combustion noise is small, and the flame adjustment is stable.

Description

technical field [0001] The present invention relates to a burner, in particular to a partially premixed burner. Background technique [0002] Gas types usually include artificial gas, natural gas, liquefied petroleum gas, etc., and the properties of different gas types are quite different. The design of the burner should consider adapting to the characteristics of different gases. [0003] In the field of application of commercial combustion appliances, due to the limitation of space, the mixing distance of gas and air is very short, and the mixing distance between gas and air cannot be fully mixed, resulting in incomplete combustion and high combustion noise. [0004] The fully premixed burner overcomes the above-mentioned shortcomings of insufficient combustion and high combustion noise, but has the following disadvantages: [0005] It is necessary to provide a stable gas source; the flame adjustment range is small, and it is easy to produce a tendency to backfire when u...

AI Technical Summary

Problems solved by technology

[0003] In the application field of commercial combustion appliances, due to the limitation of space, the mixing distance of gas and air is very short, and the mixing distance of gas and air cannot be fully mixed, resulting in incomplete combustion and high combustion noise.

[0004] The fully premixed burner overcomes the above-mentioned shortcomings of insufficient combustion and high combustion noise, but has the following disadvantages:

[0005] It is necessary to provide a stable gas source; the flame adjustment range is small, and it is easy to produce a tendency to backfire when using some gases with high combustion potential; if the space of the burner is limited, the design of the mixing area of ​​gas and air is also difficult to achieve The purpose of fully mixing the two

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