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System and method for online inspection of turbines including aspheric lens

An aspheric lens, spherical lens technology, applied in the camera body, TV system components, telescopes and other directions, can solve the problem of difficult to keep the lens alignment, damage to the effective service life and so on

Active Publication Date: 2014-10-01
SIEMENS ENERGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As the number of lenses within an optical tube increases, the mechanical design and operational constraints of the lens mount and the effective operating lifetime of the system become more challenging
For example, as the number of lenses in the mount increases, it becomes more difficult to maintain lens alignment in high temperature inspection applications, and useful life suffers accordingly

Method used

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  • System and method for online inspection of turbines including aspheric lens
  • System and method for online inspection of turbines including aspheric lens
  • System and method for online inspection of turbines including aspheric lens

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Embodiment Construction

[0044] After considering the following description, it will be apparent to those skilled in the art that the teachings of the present invention can be readily utilized in an optical camera system operating on-line for non-destructive internal inspection of power generating turbines, including gas turbine combustors and turbines segment, which is at high operating temperatures in the range of over 600°C (1112°F) and includes combustion gas pollutants. The detection system includes one or more aspheric lenses capable of withstanding continuous operating temperatures above 600°C. Aspheric lenses alone or in combination with spherical lenses create a wider field of view and require fewer combined lenses than lens mounts that include only spherical lenses. A cooling system included in the detection system facilitates continuous operation and inhibits fouling of the outer surface of the lens by combustion gases.

[0045] Aspherical Lens Optical System

[0046] To improve the mec...

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Abstract

Optical camera systems for nondestructive internal inspection of online, operating power generation turbines, including gas turbine combustor and turbine sections that are at high operating temperatures in the range of over 600 DEG C (1112 DEG F) and which include combustion gas contaminants. The inspection system includes one or more aspheric lenses capable of withstanding continuous operating temperatures above 600 DEG C. The aspheric lenses, alone or in combination with spherical lenses, establish a wider field of view, and require fewer lenses in combination than lens mounts incorporating only spherical lenses. A cooling system incorporated in the inspection system facilitates continuous operation and inhibits lens external surface fouling from combustion gasses.

Description

[0001] Cross References to Related Applications [0002] This application claims concurrently filed and assigned Serial No. 13 / 362,365, Docket No. 2011P12815US, entitled "SYSTEM AND METHOD FOR ONLINE INSPECTION OF TURBINES INCLUDING TEMPERATURE AND V1BRATION COMPENSATING LENS MOUNT), which is incorporated herein by reference. technical field [0003] The present invention relates to an optical camera system operating online for non-destructive internal inspection of power generation turbines, including gas turbine combustors and turbine sections, operating at temperatures in the range of over 600°C (1112°F) and including combustion gas contamination thing. Background technique [0004] By combining high-temperature optics with high-speed camera imaging, infrared or visible light spectrum in-line camera systems monitor critical internal engine components of power generating gas turbines, steam turbines, generators or their associated equipment during their operation in a pow...

Claims

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Application Information

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IPC IPC(8): G02B23/24
CPCG03B17/12H04N5/23287G02B7/028H04N2005/2255G02B23/2492G03B17/55H04N23/555H04N23/687G02B17/00G02B23/24G02B7/02
Inventor E.巴雷恩V.乔纳拉贾达
Owner SIEMENS ENERGY INC
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