Multi-gas-fuel mixed combustor structure of gas turbine and application method thereof
A gas fuel and gas turbine technology, applied in the combustion method, combustion chamber, combustion equipment, etc., can solve problems such as ablation of the fuel pipeline outlet
Pending Publication Date: 2019-03-19
CHINA HUANENG GRP CO LTD +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a gas turbine multi-gas fuel mixed combustion burner structure and use method, which solves the phenomenon that the existing burner secondary channel is fed with gas fuel for a long time, resulting in ablation at the outlet of the fuel pipeline
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0027] The present invention provides a gas turbine multi-gas fuel mixed combustion burner structure, which includes a mixed combustion burner body, and the mixed combustion burner body is arranged at the inlet of a combustion chamber.
[0028] The mixed combustion burner body includes an ignition electrode 31, an outer air pipeline 16, a main gas fuel pipeline 15, an inner air pipeline 14, a secondary gas fuel pipeline 13, a central gas pipeline 12 and a central gas fuel pipeline 11 , wherein, the periphery of the central gas fuel pipeline 11 is the central gas pipeline 12, the secondary gas fuel pipeline 13, the inner air pipeline 14, the main gas fuel pipeline 15 and the outer air pipeline 16, and the central gas fuel pipeline The fuel pipeline 11 is arranged concentrically with the central gas pipeline 12 , the secondary gas fuel pipeline 13 , the inner a...
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The invention provides a multi-gas-fuel mixed combustor structure of a gas turbine and an application method thereof. The multi-gas-fuel mixed combustor structure comprises a mixed combustor body. Anoutlet of the mixed combustor body is arranged at an inlet of a combustion chamber. The mixed combustor body comprises an ignition electrode, an outer air pipeline, a main gas fuel pipeline, an innerair pipeline, an auxiliary gas fuel pipeline, a center gas pipeline and a center gas fuel pipeline, wherein the outer air pipeline, the main gas fuel pipeline, the inner air pipeline, the auxiliary gas fuel pipeline, the center gas pipeline and the center gas fuel pipeline are arranged from outside to inside in sequence. The ignition electrode is arranged at an outlet of the center gas fuel pipeline. According to the multi-gas-fuel mixed combustor structure, natural gas is introduced into the center gas fuel pipeline, and air or waste nitrogen gas is introduced into the center gas pipeline; except formation of on-duty flames and stable combustion, the temperature of the outlet of the center gas fuel pipeline can be reduced, a burner is protected, and a unit can operate safely and stably.
Description
technical field [0001] The invention relates to the technical field of low calorific value gas turbines for an integrated coal gasification combined cycle power generation system, in particular to a structure and a use method of a gas turbine multi-gas fuel mixed combustion burner. Background technique [0002] Integrated gasification combined cycle (IGCC) is a power generation technology in which solid fuels such as coal are gasified in a gasifier, and the resulting syngas is used in a gas-steam combined cycle. The main combustion components of syngas are CO and H2, and the calorific value is low, which is one-fifth of natural gas. In order to adapt to the combustion of syngas, generally, the gas fuel pipeline designed for the combustor of a gas turbine burning syngas is divided into a main circuit and a secondary circuit, and the center of the burner is an ignition fuel pipeline. There is a swirl sheet at the outlet of the auxiliary gas fuel pipeline, and the fuel enterin...
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IPC IPC(8): F23R3/28F23R3/14
CPCF23R3/14F23R3/28
Inventor 秦晔张波史绍平穆延非刘鑫陈新明郭雨桐闫姝曾崇济
Owner CHINA HUANENG GRP CO LTD