The invention relates to a gas
turbine low-
pollution combustion chamber single-vortex head structure. Firstly, central vortex air and central
natural gas are mixed, and outer wall non-vortex air and outer wall
natural gas are mixed. After that, the vortex air, the non-vortex air, the central
natural gas and the outer wall natural gas are further mixed in a natural gas-air mixing cavity, the mixinguniformity of the natural gas and air can be improved, generation of hot spots can be avoided, and generation of
nitric oxide is effectively lowered. By means of the
gas supply mode of combination ofcentral vortex and outer wall non-vortex, the vortex intensity of head outlet
airflow can be lowered, and the risk of occurrence of oscillation
combustion is also lowered. By means of the combinationof the central natural gas and outer wall natural gas, the
NOx-CO proportion can be improved, and
flame stability is facilitated. A head outlet convergence section can improve the speed of natural gas-air mixed
airflow, and
tempering is effectively prevented. A tangential gas inlet
small hole in the outer wall of a whirlcone can lower the risk of
spontaneous combustion occurring inside the head structure.