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Gas turbine inlet silencer

A technology of air intake and air intake passage, which is applied in the direction of gas turbine devices, sound-generating devices, jet propulsion devices, etc., and can solve the problems of restricting air flow and increasing the cost of noise attenuation

Inactive Publication Date: 2015-11-25
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such baffle configurations can restrict air flow and impose a substantial penalty in providing noise attenuation at the compressor inlet

Method used

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  • Gas turbine inlet silencer
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  • Gas turbine inlet silencer

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Embodiment Construction

[0027] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof and in which are shown by way of illustration and not limitation specific preferred embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and changes may be made without departing from the spirit and scope of the invention.

[0028] refer to figure 1 , according to one aspect of the invention, an inlet muffler is provided at the inlet of the flow path to the air intake machine. In the illustrated embodiment, the air intake machine is a gas turbine engine 10, such as a gas turbine engine 10 used in a power plant. Engine 10 includes a compressor 12 that receives air through a compressor intake conduit structure or intake conduit 14 . The illustrated intake conduit may be located downstream of an intake filter element (not shown). The compressor sends compressed air to the...

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Abstract

A system for attenuating sound emissions from an inlet to a flow path for an air inducting machine including an inlet duct structure having inlet and outlet passages. A planar vortex generator is located adjacent to the outlet passage and creates vortices that interact with a specific tonal acoustic frequency emitted from the inlet of the machine to effect formation of a standing wave at the vortex generator. The standing wave has an upstream propagating component that reflects off an acoustic reflector wall to form a reflected component that interferes with the upstream propagating component to attenuate the specific tonal acoustic frequency from the inlet of the machine.

Description

technical field [0001] The present invention relates to gas turbine engines, and more particularly to an air inlet muffler for attenuating sound emitted from the air inlet of the gas turbine engine. Background technique [0002] A gas turbine engine used to generate electricity includes a compressor for supplying the engine with compressed air that is mixed with fuel and ignited to produce hot working gases that are directed through a turbine section to flow from the engine Produce job output. The compressor includes stages formed by pairs of rows of rotating blades and stationary blades. The rotating blades generate intake noise due to the interaction of various phenomena related to the interaction of the blades and the air drawn into the compressor, and produce broadband noise and discontinuous tones of the blades passing. [0003] Various mechanisms have been implemented to dampen the noise emanating from the compressor intake. For example, a sound-absorbing parallel i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/16G10K11/175F02C7/045
CPCF01D25/00F02C7/045F05D2240/127G10K11/161
Inventor R·A·帕特南
Owner SIEMENS AG