PREMIXING BURNER FOR A GAS TURBINE, CAPABLE OF MIXING FUEL AND COMBUSTION GAS PERFECTLY WITH LOW PRESSURE LOSS AND STABLE COMBUSTION

摘要

PURPOSE: A premixing burner for a gas turbine is provided to reduce emission of pollutants because mixing efficiency of fuel and combustion gas is improved with increased the penetrated combustion gas.;CONSTITUTION: A premixing burner(10) for a gas turbine comprises two partial conical cells(11,12) forming air inflow ducts(18,19). Combustion air(20) flows into a conical inner space(30) of the premixing burner from the outside through the air inflow duct. An injection opening(21) is extended transversely to a flow direction of the combustion air. Linear rows of the injection opening are arranged in the exterior of the air inflow ducts. Gaseous fuel(22) is inserted into the combustion air in the duct through the injection opening. The ratio of an effective diameter of an outlet to a diameter of the injection opening is 0.011-0.015.;COPYRIGHT KIPO 2012