Low-nitrogen-emission combustion chamber and gas turbine including combustion chamber

Abstract

The invention relates to a low-nitrogen-emission combustion chamber and a gas turbine including the combustion chamber. The combustion chamber comprises a combustion chamber head part and a combustion chamber cylinder connected up and down; the combustion chamber head part includes a secondary gas mechanism, a main gas mechanism encircled at the external of the secondary gas mechanism, and an air inlet formed above the secondary gas mechanism and the main gas mechanism; the combustion chamber cylinder includes an inner flame cylinder for respectively communicating with the secondary gas mechanism, the main gas mechanism and the air inlet, and an outer flame cylinder encircled at the external of the inner flame cylinder and communicating with the air inlet; and a combustion chamber outlet is formed in the bottom of the inner flame cylinder. Compared with the prior art, the combustion chamber can prominently reduce the nitrogen oxide emission of a micro gas turbine combustion chamber, improves the combustion efficiency, and realizes wide-load, low-emission and high-efficiency stable operation under 40-100%; and the gas flows in a main gas pipe and a secondary gas pipe are adjusted, so that the simple cycle and the bring-back thermal cycle can be flexibly converted, and the economy is excellent.

Description

technical field [0001] The invention belongs to the technical field of gas turbines, and relates to a combustion chamber with low nitrogen emission and a gas turbine containing the combustion chamber. Background technique [0002] A gas turbine is a rotary impeller heat engine, which uses continuously flowing gas as a working medium to drive the impeller to rotate at high speed, thereby converting the energy of the fuel into mechanical energy. As one of the three core components of a gas turbine, the combustor's combustion stability and low nitrogen emission performance are equally important under rated load and part load conditions. [0003] At present, the design of the combustion chamber is mostly designed according to the rated load condition. In large conventional energy systems where electricity is the target demand, gas turbines operate at rated load most of the time to maximize their performance. However, when a distributed energy system or a special vehicle with a...

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Problems solved by technology

In general, combustion chambers need to be designed separately according to the operating conditions to meet different needs, and the two combustion chambers cannot be used interchangeably. In actual use, only two combustion chambers can be produced at the same time, which greatly increases the production cost

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