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Helmholtz buffer and method for installing such a Helmholtz buffer

A buffer and burner technology, which is applied in the field of gas turbines, can solve the problems of inflexible application and adjustment of Helmholtz buffer burners

Active Publication Date: 2015-12-16
GENERAL ELECTRIC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The known Helmholtz damper is therefore either not flexible enough in the application and adjustment of the corresponding burner, or it can only be integrated into existing burners and adjusted from outside the burner only by taking special precautions

Method used

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  • Helmholtz buffer and method for installing such a Helmholtz buffer
  • Helmholtz buffer and method for installing such a Helmholtz buffer
  • Helmholtz buffer and method for installing such a Helmholtz buffer

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Embodiment Construction

[0045] exist figure 1 with figure 2 An external perspective view and a longitudinal sectional view of a Helmholtz damper according to an embodiment of the present invention are shown in . The illustrated Helmholtz damper 10 comprises two damping volumes 11 and 12 arranged in series along an axis 18 and connected to each other. The first buffer volume 11 is cylindrical and is the main volume of the Helmholtz buffer 10 . A smaller second damping volume 12 , which is also cylindrical, is connected to the main volume by means of a flange. exist figure 2 The second buffer volume 12 circled for identification in the image 3 with Figure 4 The design presented again in longitudinal section or external perspective.

[0046] The second buffer volume 12 is closed upwardly by a flange 32 which is arranged at the lower end of the upwardly leading connecting pipe 15 . The second buffer volume 12 is accessible from above via a connecting pipe 15 provided with a coupling piece 16 at...

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PUM

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Abstract

The invention relates to a Helmholtz buffer for installation in a burner of a gas turbine, the burner comprising a combustion chamber arranged in a casing and closed by a front plate in which a replaceable A plurality of combustion devices supply fuel to the combustion device through a fuel nozzle, and the fuel nozzle extends through a sleeve in the casing to reach the relevant combustion device. A Helmholtz buffer includes a first and a second buffer volume arranged in series along an axis and releasably connected to each other to form a combined larger buffer volume; at an end of the first buffer volume opposite to the second buffer volume A connecting channel is arranged at the bottom, which extends from the first buffer volume and terminates in the front panel, so that a Helmholtz buffer can be fixed in the front panel instead of the combustion device and in the second buffer volume with the first buffer A connecting pipe is arranged at the opposite end of the volume, which extends from the second buffer volume and can be led outwards through a bushing in the housing instead of a fuel nozzle.

Description

technical field [0001] The invention relates to the technical field of gas turbines. It relates to a Helmholtz damper for installation in a combustor of a gas turbine according to the preamble of claim 1 and a method for installing such a Helmholtz damper. Background technique [0002] When liquid or gaseous fuels are combusted in the combustors of gas turbines, so-called lean premixed combustion is established. Here fuel and combustion air are premixed as homogeneously as possible and then guided into the burner. For ecological reasons, attention is paid to low flame temperatures, which are achieved due to a large excess of air (“lean premixing”). In this way, the formation of nitrogen oxides can be kept low. A corresponding premix combustion device, also called EV-combustion device (EV stands for ambient vortex), is described, for example, in EP321809. This burner is used in ring burners or can burners. For example in DE102005062284's figure 2 A schematic configurati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D14/46
CPCF23C2900/07002F23D2210/00F23R2900/00016F23R2900/03342F23M20/005F23R3/00Y10T29/49229
Inventor F·马格尼M·A·冯普兰塔F·格里姆D·诺瓦克M·舍勒
Owner GENERAL ELECTRIC TECH GMBH