Catalytic combustion system for a stationary combustion turbine having a transition duct mounted catalytic element
First Claim
1. A catalytic combustion system for a stationary combustion turbine having a casing comprising a supported combustor basket having means for burning primary fuel to provide a preheated gas, means for mixing secondary fuel and air with the preheated gas, a transition duct disposed downstream from said combustor basket, means for supporting said duct relative to the turbine casing, a catalytic unit, means for supporting said catalytic unit relative to an upstream portion of said transition duct to put the thrust load from said catalytic element on said duct supporting means, and means for coupling an outlet portion of said combustor basket to an inlet of said catalytic unit.
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Accused Products
Abstract
A catalytic combustion system includes a combustor having a diffuser end portion supported for sliding thermal growth by a catalytic unit through a spring clip ring assembly. The catalytic unit includes two shell portions which are secured together to support a catalytic element within the shell. A ring supports the catalytic unit on the transition duct for sliding thermal axial growth through a spring ring and receives catalytic element thrust. The parts are structurally arranged for installation and maintenance through an opening in the turbine casing.
70 Citations
11 Claims
- 1. A catalytic combustion system for a stationary combustion turbine having a casing comprising a supported combustor basket having means for burning primary fuel to provide a preheated gas, means for mixing secondary fuel and air with the preheated gas, a transition duct disposed downstream from said combustor basket, means for supporting said duct relative to the turbine casing, a catalytic unit, means for supporting said catalytic unit relative to an upstream portion of said transition duct to put the thrust load from said catalytic element on said duct supporting means, and means for coupling an outlet portion of said combustor basket to an inlet of said catalytic unit.
Specification