Multi-stage partitioned combustion structure for gas turbine

A technology of gas turbine and combustion structure, applied in the direction of combustion chamber, combustion method, combustion equipment, etc., can solve the problems that combustion stability and low emission can not be well balanced, achieve flameout performance and low emission, ensure high-efficiency combustion, reduce The effect of small NOx emissions
CN113251440AActive Publication Date: 2021-08-13成都中科翼能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
成都中科翼能科技有限公司
Publication Date
2021-08-13

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Abstract

The invention belongs to the technical field of gas turbines, and particularly relates to a multi-stage partitioned combustion structure for a gas turbine. The multi-stage partitioned combustion structure for the gas turbine comprises a combustion chamber casing, a flame tube, a plurality of cyclones and a diverter. The cyclones are divided into an on-duty cyclone, a flame transfer cyclone, a first main combustion cyclone and a second main combustion cyclone, each cyclone is provided with a first fuel gas channel, and the first fuel gas channels convey fuel gas used for premixed combustion. A second fuel gas channel is further arranged at the on-duty cyclone, and the second fuel gas channel is used for conveying fuel gas for diffusive combustion. The installation angles of blades of the cyclones are different, and the flow fields of rotating airflow generated by the cyclones are relatively independent, so that the cyclones participate in independent partitioned combustion. According to the multi-stage partitioned combustion technology in the scheme, the four stages of different cyclones are combined with the diverter, multi-stage partitioned organization combustion is formed in a staged fuel supply mode, the requirements of all working conditions are met, the ignition and flameout performance and combustion stability of a combustion chamber are guaranteed, and the requirement for low emission of nitric oxide is met.
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Description

Technical field

[0001] The present invention belongs to the technical field of gas turbine, and more particularly to a multi-stage partition-type combustion structure for a gas turbine. Background technique

[0002] Gas turbine is a good cleaning, high efficiency, has advantages of small size, low weight, and is widely used in power generation, independent energy systems, mechanical drives and other fields. However, the gas turbine produces nitrogen oxides during the working process (NO x ), Carbon monoxide (CO) and contaminants such as hydrocarbon compound (UHC), the formation of the above contaminants, the main and combustion of the combustion flame temperature, equivalent ratio, intake pressure, and mixed uniformity of air and air, etc. related.

[0003] In recent years, the development of low-emissions combustion technology has developed rapidly, and various new technologies have emerged, and a group of low-emission combustion technology has developed a variety of low polluti...

Claims

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