The invention discloses a gas
turbine low-emission
combustion chamber using gas fuels, and belongs to the technical field of
gas turbines. The
combustion chamber comprises an on-duty grade, a main
combustion grade, a high-pressure igniter, a mixing hole, an exhaust outlet, a bearing
machine box, a
flame cylinder, the
flame cylinder outer
machine box, a
flange, a first on-duty grade gas fuel pipeline, a main combustion grade gas fuel pipeline, a main combustion grade fuel main
pipe, a first on-duty grade fuel main
pipe, a pipeline bracket, a second on-duty grade fuel main
pipe, a second on-dutygrade gas fuel pipeline, an
air conditioning device, a first on-duty grade
fuel tank, a second on-duty grade
fuel tank and a main combustion grade
fuel tank; when a gas
turbine is started in low-loadstates, only the on-duty grade works; when the gas
turbine is started in high-load states, the on-duty grade and the main combustion grade work together; and through
diffusion combustion of on-duty grade fuels, a stable ignition source is provided to a main combustion area, so that the
low emission requirement is guaranteed, the combustion stability and the combustion efficiency are fully considered, and the performance requirements of the
combustion chamber are comprehensively met.