Hpi has a deep knowledge of how engines operate and the realworld implications of component degradation and system maintenance. Fatigue analysis of vane components for gas turbine engine j. Spi borescopes is proud to introduce the recon series of articulating video borescopes. Engine borescope inspection maintenance scheme management. Hp turbine nozzle hp turbine nozzles no defect found hp turbine nozzles no defect found e.
To perform a detailed human factors analysis of borescope inspection, particularly as applied to aircraft turbine engines. Gas turbines are increasingly being used in power plants both in the utility and power sectors for their. Human factors good practices in borescope inspection colin g. 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. Borescope training gas path inspection gas turbine steam turbine siemens sgt ft4 ft4000 ft8 avon rb211 trent centaur mars mercury saturn taurus titan.
This document also provides background information that will aid the inspector in understanding stationary gas turbines. Gas turbine inspections are much more difficult than other industrial and manufacturing procedures. Identify the types of troubleshooting drawings and diagrams 6. This application claims priority to and is a continuation of u. Borescope inspections are carded out into the various portions of the hot gas path which is not directly visible except by this method. These procedures include gas path borescope inspection bi, radial clearance measurements, and turbine nozzle axial clearance measurements. Siemens westinghouse has developed a patented high temperature borescope for the inspection of hot. The gas turbine maintenance criteria and the asso ciated costs are directly affected by the accessibility and inspection of complex, coated components manufactured from advanced high temperature materials. 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. 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. Nov 20, 20 demonstration of the borescope procedure for the boeing 777 apu 331500. Borescope inspection saves time and money for gas turbine plant.
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. Gas turbine inspection is more complex than other manufacturing or industrial procedures. Gas turbine systems supervisor supervisor manual for gas turbine engines. Affordable hd 1080p borescope inspection cameraengines. Borescope inspection services nde borescope services. Applications include piston engines and gas turbine engines either installed in aircraft or in workshops. How to conduct a borescope on a pt6a5a engine youtube. 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. Hot gas path inspection 1 free download as powerpoint presentation. Bsi borescope inspection gas turbine acronymfinder.
They are also used in manufacturing of machined or cast parts to inspect critical interior surfaces for burrs. Guide to the gas turbine components sgt400 siemens. Borescope inspection of engines can be used to prevent unnecessary maintenance, which can become extremely costly for large turbines. Gas turbine systems technician mechanical roadmaps are just what the name implies a roadmap through the enlisted. Completed annually or at preoutage intervals to identify problem areas before disassembly. There have been numerous causes of steam turbine failures worldwide. 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. With over 6 years in development, the recon is quite possibly the best borescope ever made. Discuss the purpose and types of borescopes used today. 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 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. Borescope inspection results are recorded and processed. Inspectors guidance manual stationary gas turbines. Figure 915 shows typical borescope equipment for gas turbine inspection work. 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. The borescope inspection procedure is an example of a visual search and. Engineers to perform borescope inspections on aircraft system components and engines. Applications include piston engines and gas turbine engines either installed in aircraft or in. Apu borescope inspection training honeywell honeywell. Carl davis from davis aviation demonstrates how to conduct a borescope on a pt6a5a engine. 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.
Gas turbine components sgt400 siemens free download as powerpoint presentation. The visual inspection of components, especially of the drives gas turbines with an borescope is a very important part of the function test. Pdf borescope inspection management for engine researchgate. Five steps towards a successful wind turbine gearbox inspection. This page provides a sample inspection and test plan for gas turbine which is used in the gas turbine shop inspection. Gas and steam turbines require particular attention because of safety and maintenance requirements. 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. 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. Gas turbine components sgt400 siemens turbomachinery. Our gearbox inspection services help you detect failures as early as possible and ensure the efficiency of your wind turbines. 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. 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. Gas turbine inspection services are offered for industrial customers throughout north america. 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.
The correct implementation of planned maintenance and inspection. Damages to turbine engine components scientific journal of. Apu borescope inspection training honeywell youtube. 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. With the industrial borescope how to track these four factors to check it. The inspection procedures and the knowledge gained from damage evaluation may also be applied to the borescope inspection of the allison 501k17 gte. Apr 28, 2008 ge energys inspection and life extension services borescope team provides the borescope inspection services for large frame gas turbines. Borescope reduces time for gas turbine inspections power.
Scribd is the worlds largest social reading and publishing site. This course will familiarize the student with the procedures required to assess the operational condition of internal gas turbine components using borescope equipment. Inspection procedure an overview sciencedirect topics. Ger3620n heavyduty gas turbine operating and maintenance. Us7458768b2 borescope inspection port device for gas. 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. The manual interface is a light, onehanded device possessing a minijoystick. Heavyduty gas turbine operating and maintenance considerations. Increased demand following each borescope inspection, ge energy inspectors spent hours manually consolidating images and handwritten notes into a comprehensive report. This affords the ge5 a position of market leadership in. 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.
To use the analysis to provide human factors guidance best practices to improve the overall reliability of borescope inspection. Inspect, test and troubleshoot gas turbine engine systems and components. It is essential that inspection procedures take into account. Nov 22, 2016 borescoping allows you to visually inspect the inside of a gas turbine engine without the need to dismantle it. Aircraft turbine engine borescope inspection youtube. Borescope inspection saves time and money for gas turbine. The assessment of the gas turbine condition is accomplished through a borescope inspection procedure. Ge heavyduty gas turbine designs incorporate provisions in both compressor and turbine casings for borescope inspection of intermediate compressor rotor stages, first, second and thirdstage turbine buckets, and turbine nozzle partitions. We use the tube to navigate tight spaces and windows throughout the turbine. The aircraft derivative gas turbine in figure 916 has 22 borescope ports allowing access to critical components of the core engine. 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. Our borescope inspection services can reveal potential problems that may result in collateral damage. A ge gas turbine is a fully integrated design consisting of stationary and rotating mechanical, fluid, thermal, and electrical systems. Third party inspection for steam turbine procedure.
Maintenance and overhaul of steam turbines wgp42 05. To ensure efficient performance, regular condition monitoring of your wind turbine gearbox is vital. Gas turbine lm6000 borescope inspection ge power services. Borescope inspection procedure pdf 61 daubagendser.
A haptic virtual borescope for visual engine inspection training. Through borescope inspection for hpt blade can detect the damage of blade on. These gas turbines operate at 2,000 degrees fahrenheit against steam turbines at 1,200 degrees fahrenheit. Geometric orientation of the lm2500 gte the following section discusses the borescope procedures used to inspect the lm2500 gte. 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. The borescope inspection procedure mainly consists of the following four aspects. Routine borescope inspections will allow you to identify problem areas and to replace or repair parts before they cause major issues and unexpected downtime. 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. This invention relates generally to gas turbine engines, and more particularly to borescope inspection port devices for gas turbine engines. Third party inspection for steam turbine name plate controlling. Dec 21, 2017 gas turbine inspections are much more difficult than other industrial and manufacturing procedures.
Borescope reduces time for gas turbine inspections. For this type of inspection, we use a borescopehence the name. 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. 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.
The majority of this chapter deals with the lm2500 gte damage evaluation. Pdf borescope inspection for hpt blade of cfm567b engine. The gas turbines manufactured by ge energy have features that make them particularly suitable for pipeline compressor applications. Typically the inspection is an inlet to exhaust assessment of your gas turbine to inspect for any issues that could affect further performance. Gas turbine engines are commonly equipped with pluggable holes in their outer casings to allow use of borescopes. Pdf gas turbines gas turbine maintenance philosophy and. Us49822a eddy current probe for inspecting interiors of.
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. Us9458735b1 system and method for performing a visual. Cfm567b engine has had several ruptures of hpt blades since its service, resulting engine failure during the flight. Borescope inspection results are recorded and processed in accordance with standard enterprise procedures for the applicable borescope equipment. A borescope is a specialty instrument with a flexible tube, which contains a camera at the end. Mea366a perform borescope inspections date this document was generated.
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