Failure cause analysis of an expansion bellow of integrated turbine ...
Jun 1, 2021 · Expansion U-bellow in integrated turbine unit failed after nine years of service. Striation marks attributed to fatigue failure. FEA shows that maximum stress induced in trough region of the bellow.
Crossover Piping Bellows - a special steam pipe expansion joint
Crossover Piping Bellows are invariably custom-designed to suit the arrangement of the turbines and interconnecting pipe system. Depending on the pipe arrangement, the Expansion Joint type may be an articulated design, corner relief design, hooded design or a combination of Angular Expansion Joints and Lateral expansion joints.
Badger is pleased to provide insight into metal bellow’s purpose, design, and how metal bellows function. The data presented in this handbook is consistent with the Standards of the Expansion Joint Manufacturers Associ-ation (EJMA), of which Badger is a founding member.
Gas Turbine Expansion Joints | Flexible Specialty Products
Gas Turbine Exhaust expansion joints, also known as GTX expansion joints, are a critical part of the turbine system. They’re exposed to extreme conditions, including thermal shock, large movements, high temperatures, flutter, and vibration.
Power Plant Expansion Joints – Oakridge Bellows
Power Plant 2-Ply Testable Bellows For Steam Turbines. Power Plant GE Cross Over Steam Turbine Expansion Joint. Avoiding design problems in Steam Extraction Expansion Joints. Replacing HRSG penetration seals without compromising service life. Categories.
expansion joints decouple vibrations and structure-born noise from diesel engines, turbines, pumps and compressors, preventing their transfer to the continuing lines. At the same time, expansion joints allow nearly force-and torque-free connection of pipes to …
The first expansion joint is required at the turbine case at the exhaust to the condenser duct. This is frequently a rubber dogbone design. It serves to reduce loads transmitted via diferential thermal growth from the expanding ducting and turbine casing.
Exhaust Expansion Joints | Find our full product range here
Exhaust Expansion Joints are used in a wide range of applications onboard marine vessels including gas turbine exhausts, power units, generator sets, marine propulsion systems, OEM engines and auxiliary systems.
For steam extraction applications, expansion joint liner attachment welds should have either a full thickness fillet weld, or a full thickness V groove large enough to ensure proper weld penetration. In addition, this weld is nearly impossible to inspect after assembly.
GE 7FA users found that the original graphite slip joints in the cross-fire tubes leaked, which increased temperatures in the turbine casing. The upgrade to the graphite packed joint is a flanged alloy bellows expansion joint, which has proven to be a successful upgrade.