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Burner, in particular for gas turbines

A technology for burners and combustion appliances, which is applied in the directions of burners, combustion chambers, and combustion methods, and can solve problems such as changing the design of the burner.

Active Publication Date: 2012-05-23
SIEMENS ENERGY GLOBAL GMBH CO & KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty now lies in supplying fuel to this additional gas channel without aerodynamically altering the burner design to date

Method used

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  • Burner, in particular for gas turbines
  • Burner, in particular for gas turbines
  • Burner, in particular for gas turbines

Examples

Experimental program
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Embodiment Construction

[0028] The burner according to the invention is shown in a clearly schematic schematic diagram below with reference to figure 1 Describe the scheme that is the basis for the burner.

[0029] A burner according to the invention can optionally be arranged in combination with several burners of the same type in the combustion chamber of a gas turbine plant, the burner comprising an inner pilot burner system and a main combustion chamber concentrically surrounding the pilot burner system device system. Both the pilot burner system and the main burner system can optionally be operated with gaseous and / or liquid fuels such as natural gas or fuel oil.

[0030] The pilot burner system comprises an inner oil delivery channel 1 which is concentrically surrounded by an inner annular gas delivery channel 3 . This gas delivery channel is in turn surrounded concentrically by the inner air delivery channel or inert gas delivery channel 5 . Furthermore, a suitable ignition system (not show...

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Abstract

Provided is a burner with a central fuel supply arrangement (27), an annular air channel (17) surrounding the central fuel supply arrangement (27) for supplying combustion air, and swirl vanes (19) disposed in the annular air channel (17). The swirl vanes (19) have first gas nozzles (21) for injecting a gaseous fuel into the combustion air, and second gas nozzles (23) for injecting a gaseous fuel into the combustion air. The first gas nozzles (21) are fed from a first gas distribution channel (29) in the fuel supply arrangement (27), and the second gas nozzles (23) are fed from a second gas distribution channel (31) in the fuel supply arrangement (27). The first gas distribution channel (29) and the second gas distribution channel (31) are supplied with combustion gas from a gas supply pipe (41) which has a first gas supply channel (35) and a second gas supply channel (37), the first gas supply channel (35) being connected to the first gas distribution channel (29) and the second gas supply channel (37) being connected to the second gas distribution channel (31).

Description

technical field [0001] The invention relates to a combustor, and in particular a gas turbine combustor, with a central fuel supply. Furthermore, the invention relates to a gas turbine. Background technique [0002] In view of the worldwide efforts to reduce pollutant emissions in combustion plants, especially gas turbines, burners with particularly low nitrogen oxide (NOx) emissions have been developed in recent years. In this case, it is expediently provided that such burners can each be operated not only with one fuel, but possibly also with different fuels, for example oil and natural gas or a combination of both, in order to increase the security of supply and the flexibility of operation. sex. Such a burner is described, for example, in EP0276696B1. [0003] The burners described in EP0276696B1 are hybrid burners operated with a premixed gas and / or oil, such as are used in particular for gas turbine installations. The burner comprises a central combustion delivery, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/28F23R3/14
CPCF23R3/286F23R3/14F23D2211/00F23R2900/00001F23D2900/14021F23C2900/07001F23R3/283
Inventor A.波特克M.卡诺沃尔夫A.克鲁格T.克雷格U.沃兹
Owner SIEMENS ENERGY GLOBAL GMBH CO & KG
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