Borescope reduces time for gas turbine inspections. This page provides a sample inspection and test plan for gas turbine which is used in the gas turbine shop inspection. Gas turbine lm6000 borescope inspection ge power services. This application claims priority to and is a continuation of u. Scribd is the worlds largest social reading and publishing site. Because gas turbines operate at a much higher temperature than steam turbines, 2,000 degrees fahrenheit versus 1,200 degrees fahrenheit, its essential that a borescope inspection is being done to avoid harm. Fatigue analysis of vane components for gas turbine engine j. Ge energys pipeline centrifugal compressor line complements its gas turbine line to optimize matching with the gas turbine driver resulting in perfectly integrated gas turbine compressor units. To ensure efficient performance, regular condition monitoring of your wind turbine gearbox is vital. Borescope inspection training and certification 861706 inspectors need formal training to ensure borescoping is an effective, nondestructive means of visually inspecting internal areas to detect distress in gas turbine engine and aircraft components. Inspection procedure an overview sciencedirect topics. Heavyduty gas turbine operating and maintenance considerations.
The majority of this chapter deals with the lm2500 gte damage evaluation. Borescope inspection services nde borescope services. The gas turbines manufactured by ge energy have features that make them particularly suitable for pipeline compressor applications. Affordable hd 1080p borescope inspection cameraengines. The correct implementation of planned maintenance and inspection. U07a marine gas turbine inspector performs periodic borescope inspections, mechanical grooms, and gas turbine bulletin inspections. Gas turbine inspection is more complex than other manufacturing or industrial procedures.
Maintenance and overhaul of steam turbines wgp42 05. Hp turbine nozzle hp turbine nozzles no defect found hp turbine nozzles no defect found e. These gas turbines operate at 2,000 degrees fahrenheit against steam turbines at 1,200 degrees fahrenheit. Borescope inspection saves time and money for gas turbine plant. Gas turbine components sgt400 siemens free download as powerpoint presentation. Us9458735b1 system and method for performing a visual. Borescope inspection results are recorded and processed. To perform a detailed human factors analysis of borescope inspection, particularly as applied to aircraft turbine engines. This guidance document presents procedures for inspection of stationary gas turbines in order to determine permit compliance and compliance with this new source performance standard nsps. We use the tube to navigate tight spaces and windows throughout the turbine. Pdf borescope inspection management for engine researchgate. Applications include piston engines and gas turbine engines either installed in aircraft or in. Gas turbines are increasingly being used in power plants both in the utility and power sectors for their.
A haptic virtual borescope for visual engine inspection training. Aircraft turbine engine borescope inspection youtube. Five steps towards a successful wind turbine gearbox inspection introduction a wind turbine gearbox inspection usually comprises at its core an indepth visual endoscope inspection with the option of an additional oil sample taken from the existing oil, which is sent away to a dedicated oil laboratory for spectrophotometric and particle analysis. The manual interface is a light, onehanded device possessing a minijoystick. The third party inspector checks the content in accordance with the approved drawings and specifications and make sure it is stamped in accordance with the code requirements.
To use the analysis to provide human factors guidance best practices to improve the overall reliability of borescope inspection. Borescope training gas path inspection gas turbine steam turbine siemens sgt ft4 ft4000 ft8 avon rb211 trent centaur mars mercury saturn taurus titan. It is essential that inspection procedures take into account. Gas turbine systems technician mechanical roadmaps are just what the name implies a roadmap through the enlisted. Pdf gas turbines gas turbine maintenance philosophy and. Third party inspection for steam turbine procedure. Gas turbine inspections are much more difficult than other industrial and manufacturing procedures. The inspection procedures and the knowledge gained from damage evaluation may also be applied to the borescope inspection of the allison 501k17 gte. May 28, 2014 aircraft turbine engine remote visual inspection rvi with avjadvance vjadv aviation video borescope manufactured by rf system lab, and designed for general aircraft and helicopter rvi. Product rwe power international has experience of all aspects of gt hot gas path inspection activities and can provide capabilities and experience, at a level equal to nationalinternational experts. Inspectors guidance manual stationary gas turbines. Borescope techniques applied to maintenance practices on marine heavyduty gas turbines by samoil moise manager, marine maintenance service gas turbine products division electric company schenectady, new york.
Demonstration of the borescope procedure for the boeing 777 apu 331500. Borescope inspections are carded out into the various portions of the hot gas path which is not directly visible except by this method. Heavyduty gas turbine operating and maintenance considerations maintenance planning advanced planning for maintenance is necessary for utility, industrial, independent power, and cogeneration plant operators in order to maintain reliability and availability. Figure 915 shows typical borescope equipment for gas turbine inspection work. This document also provides background information that will aid the inspector in understanding stationary gas turbines. If the annulus is found to have significant corrosion buildup, advanced turbine support suggests cleaning during the following scheduled outage. T the third party inspection for gas turbine article provides a sample procedure for gas turbine inspection and gas turbine testing in the manufacturing shop. Gas and steam turbines require particular attention because of safety and maintenance requirements.
Causes of vibration of gas turbines include the path of flow media, the unbalance of rotor, and miscellaneous effects of other components and the vibration may lead the. Completed annually or at preoutage intervals to identify problem areas before disassembly. Apu borescope inspection training honeywell youtube. Five steps towards a successful wind turbine gearbox inspection. The borescope inspection procedure mainly consists of the following four aspects. This invention relates generally to gas turbine engines, and more particularly to borescope inspection port devices for gas turbine engines. The visual inspection of components, especially of the drives gas turbines with an borescope is a very important part of the function test. There have been numerous causes of steam turbine failures worldwide.
They are also used in manufacturing of machined or cast parts to inspect critical interior surfaces for burrs. Schedule inspection of the quaternary fuel annulus during your next planned ci or hot gas path overhaul, or during the annual borescope inspection whichever comes first. Cfm567b engine has had several ruptures of hpt blades since its service, resulting engine failure during the flight. The assessment of the gas turbine condition is accomplished through a borescope inspection procedure. Routine borescope inspections will allow you to identify problem areas and to replace or repair parts before they cause major issues and unexpected downtime. Dec 21, 2017 gas turbine inspections are much more difficult than other industrial and manufacturing procedures. Bsi borescope inspection gas turbine acronymfinder. These procedures include gas path borescope inspection bi, radial clearance measurements, and turbine nozzle axial clearance measurements. The aircraft derivative gas turbine in figure 916 has 22 borescope ports allowing access to critical components of the core engine.
Hpi has a deep knowledge of how engines operate and the realworld implications of component degradation and system maintenance. With the industrial borescope how to track these four factors to check it. Borescope inspection of engines can be used to prevent unnecessary maintenance, which can become extremely costly for large turbines. Nov 22, 2016 borescoping allows you to visually inspect the inside of a gas turbine engine without the need to dismantle it. The gas turbine borescope inspection is an internal inspection performed by a trained specialist who assesses the condition of the gas turbine from the air inlet through to the exhaust, using an instrument specifically designed to examine the gas path via the access ports positioned along the engine. Pdf borescope inspection for hpt blade of cfm567b engine. Guide to the gas turbine components sgt400 siemens.
Borescope inspection saves time and money for gas turbine. Us7458768b2 borescope inspection port device for gas. Gas turbine systems supervisor supervisor manual for gas turbine engines. Borescope inspection procedure pdf 61 daubagendser. Applications include piston engines and gas turbine engines either installed in aircraft or in workshops. Increased demand following each borescope inspection, ge energy inspectors spent hours manually consolidating images and handwritten notes into a comprehensive report. Damages to turbine engine components scientific journal of. A video borescope or inspection camera is similar to the flexible borescope but uses a miniature video camera at the end of the flexible tube. This affords the ge5 a position of market leadership in. Gas turbine components sgt400 siemens turbomachinery. Human factors good practices in borescope inspection colin g. Gas turbine inspection services are offered for industrial customers throughout north america. Borescope inspection in aviation the visual inspection of components, especially of the drives gas turbines with an borescope is a very important part of the function test.
The borescope inspection procedure is an example of a visual search and. Gas turbine engines are commonly equipped with pluggable holes in their outer casings to allow use of borescopes. Third party inspection for steam turbine painting and coating. Our borescope inspection services can reveal potential problems that may result in collateral damage. Apr 28, 2008 ge energys inspection and life extension services borescope team provides the borescope inspection services for large frame gas turbines. Third party inspection for steam turbine name plate controlling. For this type of inspection, we use a borescopehence the name. Engineers to perform borescope inspections on aircraft system components and engines. Hot gas path inspection 1 free download as powerpoint presentation. Through borescope inspection for hpt blade can detect the damage of blade on.
This invention relates to crack detection in turbomachinery components and in particular to inspection of gas turbine buckets for cracks using an eddycurrent sensor without disassembly of the gas turbine. Dozens of thousands of aircraft operations in transportation of the passengers as well as in the field of transportation of goods require one hundred percent availability. Identify the types of troubleshooting drawings and diagrams 6. Geometric orientation of the lm2500 gte the following section discusses the borescope procedures used to inspect the lm2500 gte.
How to conduct a borescope on a pt6a5a engine youtube. A borescope is a specialty instrument with a flexible tube, which contains a camera at the end. Spi borescopes is proud to introduce the recon series of articulating video borescopes. Chapter 2 gas turbine maintenance this chapter will cover object damage, borescope inspection, troubleshooting, and maintenance of the lm2500 and the allison 501k series of gtes.
Siemens westinghouse has developed a patented high temperature borescope for the inspection of hot. Inspection of turbomachinery components such as rotating gas turbine blades for cracks which may have developed during service operation has. Causes of vibration of gas turbines include the path of flow media, the unbalance of rotor, and miscellaneous effects of other components and the vibration may lead the vane components to fatigue. Typically the inspection is an inlet to exhaust assessment of your gas turbine to inspect for any issues that could affect further performance. Engine borescope inspection maintenance scheme management. Apu borescope inspection training honeywell honeywell. Carl davis from davis aviation demonstrates how to conduct a borescope on a pt6a5a engine.
Borescope inspection saves time and money for gas turbine plant inspecting the internal condition of a turbine generator is an important maintenance activity, but tearing a unit apart is a long. Benefits of borescope services by hpi hpi has experienced turbine specialists who not only provide nondestructive services, but also inspect, overhaul, and install turbomachinery systems. Borescope reduces time for gas turbine inspections power. Mea366a perform borescope inspections date this document was generated. Aits experienced inspectors have a variety of remote visual inspection equipment available such as video borescopes, video inspection cameras, video scopes and fiberscopes to inspect industrial gas turbines. Discuss the purpose and types of borescopes used today. A ge gas turbine is a fully integrated design consisting of stationary and rotating mechanical, fluid, thermal, and electrical systems. Experienced turbine technicians, with worldwide backup and resources to call upon, can perform assignments in the field that include removal, installation and commissioning of gas turbines, troubleshooting or borescope inspections. Nov 20, 20 demonstration of the borescope procedure for the boeing 777 apu 331500.
Maximum periods of operation between inspections and overhauls inplace, onsite inspection and maintenance use of local trade skills to disassemble, inspect, and reassemble gas turbine components in addition to maintenance of the basic gas turbine, other. Delays to stop, cool down the gas turbine, secure the rotating parts and the borescope operator path to the borescope holes take one full day, which means that a borescope inspection demand a prolonged weekend stop with an unavailability penalty. The end of the insertion tube includes a light which makes it possible to capture video or still images deep within equipment, engines and other dark spaces. Borescope inspection results are recorded and processed in accordance with standard enterprise procedures for the applicable borescope equipment. Ger3620n heavyduty gas turbine operating and maintenance. The manual interface is a light, onehanded device possessing a minijoystick that gas turbine major inspection procedure pdf download borescope inspection procedures and maintenance steam turbines.