| 摘要 |
The present invention relates to a sequential combustion burner device (4) comprising a first burner (10), a first combustion chamber (11), and a dilution burner (35) to mix dilution gas (32) with a second fuel (29) by first burner combustion products through a dilution-gas-fuel admixer (34). The dilution-gas-fuel admixer (34) comprises at least one streamlined shape body (42), and the at least one streamlined shape body is arranged in the dilution burner (35) to insert at least one second fuel (29) inside the dilution burner (35) through at least one fuel nozzle (43). Moreover, the streamlined shape body having a streamlined cross-sectional profile is extended vertically or at an angle in the main flow direction applied to the dilution burner (35). The streamlined shape body (42) includes a dilution gas opening (44) to mix dilution gas (32) inside the first burner combustion products (37) at the upstream part of the at least one fuel nozzle (43). Moreover, the present invention relates to a method to operate a gas turbine (1) having the combustion burner device (4). |
