MD&A
Mechanical Dynamics & Analysis (MD&A) provides power generators around the globe with a full-service, OEM-alternative for services, parts, and repairs for Gas Turbines, Steam Turbines and Generators.
Recorded Webinar
MD&A’s Diaphragm Dishing Issues Webinar
MD&A Webinars | Managing Emergent Findings during Overhaul: "Diaphragm Dishing Issues"
The Diaphragm Dishing presentation will cover types of diaphragm construction, causes of diaphragm dishing, signs of dishing, and give examples of diaphragm failures. Repair options with photos are shown including structural repairs with weld replacement and the addition of bridges. New manufacture and nozzle plates are also included.
Customer takeaways from the session:
A) Dishing is the permanent downstream deflection of a diaphragm due to high temperature creep.
B) Insufficient main weld depth, weak weld material, inadequate partition cross-section, a lack of bridges, running overtemperature and poor weld quality can all contribute to diaphragm dishing.
C) Opening axial clearances to the diaphragm webs and HiLo packing teeth should be reviewed early in an outage for signs of diaphragm dishing.
D) Structural dishing repairs during an outage can include increasing weld depth and adding bridges to correct the original design/manufacturing deficiencies.
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About
Mechanical Dynamics & Analysis (MD&A) provides power generators around the globe with a full-service, OEM-alternative for services, parts, and repairs for Gas Turbines, Steam Turbines and Generators.
In our 35 years, our commitment to excellence has earned customer trust for all turbine-generator needs. We focus on delivering consistent quality and value with fast response, superior communications, and innovative solutions.
MD&A is easy to work with. We provide immediate access to expert help when you need it, where you need it. Around the corner or the globe, we ensure prompt, thorough communication and follow-through. For every repair job, large or small, the speed and effectiveness of our response team is matched only by the depth and breadth of our engineering expertise.
Find out today why so many power generators use MD&A to maximize operational effectiveness.
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