A backflow combustion chamber based on hydrogen fuel multi-point array injection and micro-swirl mixing

Abstract

A backflow combustion chamber based on hydrogen fuel multi-point array injection and micro-swirl mixing, comprising an inner box body formed with a combustion chamber, and an outer box body connected to the inner box body, the inner box body and the outer box body cooperatively forming a first gas flow channel and a second gas flow channel in sequence, high-pressure air being capable of flowing along the first gas flow channel and the second gas flow channel between the inner box body and the outer box body outside the combustion chamber, by changing the combustion chamber configuration from the straight-flow combustion chamber of the prior art to the backflow combustion chamber, the problem of local overheating of the combustion chamber caused by hydrogen fuel combustion is avoided; the combustion chamber structure further comprises a swirler, the swirler being provided with an air inlet channel, two ends of the air inlet channel being respectively communicated with the combustion chamber and the first gas flow channel; the swirler is further provided with a fuel inlet channel, an inlet end of the fuel inlet channel being capable of being communicated with a supply end of external fuel gas, an outlet end of the fuel inlet channel being communicated with a plurality of micro-hole units, each micro-hole unit being communicated with the combustion chamber to mix with combustion products.

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