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The method for in situ inspection includes providing a pair of adjacent impingement sleeves forming part of a combustor. A robotic inspection tool carrying an inspection head is inserted through an opening in the outer casing of the gas turbine and manipulated to locate the inspection head between t

The method for in situ inspection includes providing a pair of adjacent impingement sleeves forming part of a combustor. A robotic inspection tool carrying an inspection head is inserted through an opening in the outer casing of the gas turbine and manipulated to locate the inspection head between the adjacent impingement sleeves. After inspecting the exterior surface of an impingement sleeve, the inspection tool is withdrawn from the casing. Additionally, a transition piece body forming part of a combustor is inspected by securing a robotic manipulator to an open end of the combustion casing, locating an inspection head on an inspection arm of the manipulator and manipulating the arm to locate the inspection head to inspect interior wall portions of the transition body by displacing the head axially and radially toward wall portions of the transition body. Side seam welds of the transition piece body are also inspected by providing a guide with a contoured surface corresponding to the contour of the side seam weld and displacing an inspection head along the guide through the transition piece body and impingement sleeve to inspect the weld of the transition piece body.

대표청구항 ▼

The method for in situ inspection includes providing a pair of adjacent impingement sleeves forming part of a combustor. A robotic inspection tool carrying an inspection head is inserted through an opening in the outer casing of the gas turbine and manipulated to locate the inspection head between t

The method for in situ inspection includes providing a pair of adjacent impingement sleeves forming part of a combustor. A robotic inspection tool carrying an inspection head is inserted through an opening in the outer casing of the gas turbine and manipulated to locate the inspection head between the adjacent impingement sleeves. After inspecting the exterior surface of an impingement sleeve, the inspection tool is withdrawn from the casing. Additionally, a transition piece body forming part of a combustor is inspected by securing a robotic manipulator to an open end of the combustion casing, locating an inspection head on an inspection arm of the manipulator and manipulating the arm to locate the inspection head to inspect interior wall portions of the transition body by displacing the head axially and radially toward wall portions of the transition body. Side seam welds of the transition piece body are also inspected by providing a guide with a contoured surface corresponding to the contour of the side seam weld and displacing an inspection head along the guide through the transition piece body and impingement sleeve to inspect the weld of the transition piece body. ber; wherein said main body air chamber is located within said main body; wherein said air sampler further comprises an air inlet means for permitting said air flow to enter said main body air chamber; an air outlet means for permitting said air flow to exit said main body air chamber; a liquid inlet means for permitting said stripping liquid to enter said main body air chamber; a liquid outlet means for permitting said stripping liquid to exit said main body air chamber; wherein, during operation of said air sampler, said main body means is for forming said air flow from said air inlet means into a main body air vortex within said main body air chamber, wherein said main body air vortex has a velocity with respect to a stripping portion of said main body inner surface that is selected to enable said main body air vortex to urge said stripping liquid from said liquid inlet means to form a thin liquid film on said stripping portion of said main body inner surface, wherein said thin liquid film strips a film-stripped part of said target material from said main body air vortex, and wherein said velocity of said main body air vortex is also selected to enable said main body air vortex to urge said thin liquid film and said film-stripped part of said target material to flow to said liquid outlet means; wherein said air sampler further comprises a peristaltic pump means for removing at least some of said stripping liquid from said liquid outlet means; wherein said peristaltic pump m