The invention discloses specially-shaped mixing holes for adjusting outlet temperature distribution of a
combustion chamber, and belongs to the field of
combustion of
gas turbines. The specially-shaped mixing holes are formed in the inner ring wall surface and the outer ring wall surface of a
flame tube of the
combustion chamber correspondingly; the specially-shaped mixing holes divide the wall surface of the
flame tube into a
flame tube front section and a flame tube back section; the specially-shaped mixing holes are evenly distributed in the circumferential direction of the wall surface ofthe flame tube to form mixing jet flows evenly distributed in the circumferential direction, the
penetration depth of the mixing jet flows is increased, the contact area of mixing
cold air and high-temperature main
stream gas is increased, the
mixing effect is improved, and the outlet temperature distribution quality of the
combustion chamber is improved; the effect of adjusting outlet temperaturedistribution of the
combustion chamber is achieved by changing the
jet flow penetration depths, the
jet flow circumferential expansion angles and the
jet flow directions of the mixing holes; and outlet temperature distribution of the
combustion chamber is adjusted, so that the temperature quality of an inlet of a
turbine is improved, the service life of the
turbine is prolonged, and the heat-proof design difficulty of the
turbine is reduced.