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Expansion joints from EagleBurgmann for gas turbines

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article image Expansion joints for gas turbine systems

EagleBurgmann Australia Pty Ltd  offers a comprehensive range of expansion joints for gas turbine systems.

Some of the important parameters required to be considered for the correct expansion joint construction in gas turbine or combined cycle systems include steel design, steel quality, gas sealing, heat transmission, convection, bolster, duct insulation, clamping arrangements, duct washing and turbine cycles.

EagleBurgmann offers expertise based on many years of R&D as well as vast experience with nearly all possible industrial applications to produce expansion joints that assure excellent operational reliability.

EagleBurgmann expansion joint solutions include the KE-Acouseal elastomer expansion joint, Combine-X fabric expansion joint and metal expansion joints for gas turbine exhausts.

Installing a fabric or metal expansion joint in a gas turbine system depends on the specific appli­cation and system configuration. EagleBurgmann assists clients in selecting the best type of expansion joint for their appli­cation.

Key features of KE-Acouseal elastomer expansion joints:

  • Designed to insulate sound and damp vibration
  • Installed in the air intake side of the gas turbine between the filter and the compressor
  • Designed in cooperation with General Electric
Key features of Combine-X fabric expansion joints:  
  • Designed for gas turbine applications
  • Installed in diffusers, exhaust plenum, damper inlets, damper outlets, bypass stacks and boilers
  • Design must be customised to accommodate specific operating conditions
  • Can be analysed by means of FEM/FEA to ensure optimum service life
  • Allows quick and simple installation thanks to pre-assembled design
  • Suitable for applications where lateral movement is present and a rectangular shape is required
Key features of metal expansion joints for gas turbine exhaust:  
  • Used as a pressure vessel to withstand high pressure while still absorbing thermal growth
  • Withstands extremely high temperatures and fast ramp rates without the thermal stress that causes yielding
  • Suitable for round units with little or no lateral movement
Material selection

When specifying metal gas turbine expansion joints, EagleBurgmann recommends stainless steel 321 for the bellows membrane and stainless steel 321 or 347 for the connection hard­ware. Stainless steel 321 and 347 are stabilised with titanium and colum­bium respectively. Liner thickness and design should be determined based on flow condition including turbulence correction factors.

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