Combustor and gas turbine with the same

Abstract

The invention discloses a burner and a gas turbine with the same. The burner comprises a burning outdoor cylinder, a flame cylinder, a center nozzle, a plurality of peripheral nozzles, a guide sleeveand guide bent plates. The flame cylinder, the center nozzle and the multiple peripheral nozzles are arranged inside the burning outdoor cylinder. The guide sleeve is arranged in the burning outdoor cylinder and connected with the rear end of the flame cylinder. The guide sleeve is arranged outside the multiple peripheral nozzles. The guide sleeve is provided with guide holes corresponding to theperipheral nozzles. The guide bent plates are arranged in the guide sleeve and located on the rear sides of the guide holes and used for guiding air in the space between the guide sleeve and the peripheral nozzles into a first outer space and a second outer space. According to the burner and the gas turbine with the same, the flowing direction of airflow can be effectively adjusted, the pressure loss generated during air reversing is reduced, the homogeneity of a flow field and a mixing field of the peripheral nozzles is improved, and the burning performance of the burner is improved.

Description

Technical field [0001] The invention relates to the technical field of gas turbines, in particular to a combustor and a gas turbine with the combustor. Background technique [0002] In the combustor of a gas turbine, the air flows upstream from the annular passage between the combustor outer tube and the flame tube, and reaches the front end of the central nozzle and the peripheral nozzle through the guide sleeve, in the area between the burner end cover and the nozzle In reverse, part of the air enters the space in the peripheral nozzle that is close to the outer combustor in the radial direction of the outer combustor, and part of the air enters the space in the central nozzle and / or the peripheral nozzle away from the outer combustor in the radial direction of the outer combustor. [0003] However, the air has a large radial velocity when it reverses, so that the air flow in the space near the combustion chamber outside the peripheral nozzle is much larger than the air flow into...

AI Technical Summary

Problems solved by technology

[0003] However, the air has a large radial velocity when it reverses, so that the air flow in the space near the outer cylinder of the combustion nozzle in the peripheral nozzle is much larger than the air flow in the space away from the outer cylinder of the combustion nozzle in the peripheral nozzle, and the air flow is not uniform, which is easy to cause Inhomogeneous mixing of fuel and air affects burner performance

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