PURPOSE: To provide a gas turbine combustion device in which a stable combustion can be carried out within a wide fuel flow rate range.
CONSTITUTION: A burner 1 is provided with fuel nozzles 31 and 32. When an operation is carried out under a low fuel flow rate, fuel supplied from the nozzle 31 is applied to form a dispersion flame at a ring-like flame holder 11. Then, fuel is supplied from the nozzle 32. The fuel is mixed with air and reaches the flame holder 11, is held at the dispersion flame already formed and then a stable premixed flame is formed at the flame holder 11 in view of a low fuel and air ratio. Also when the flame is transmitted from the burner 1 to the burner 2, a fuel air ratio at an outer periphery of the burner 1 is locally increased by the fuel supplied from the nozzle 31. With such an arrangement as above, it is possible to improve stability in combustion with a wide fuel flow rate range and a flame transmittance to the adjoining burner may also be easily carried out.
| JPH03195806 | COMBUSTION EQUIPMENT |
| JP2849348 | INDUSTRIAL APPLICABILITY: Combustor burner |
MURAKAMI TADATAKA
KOBAYASHI SHIGEYOSHI
AZUHATA SHIGERU
MORITOMO YOSHIKAZU
