Thermal distortion isolation system for turbine blade rings

Details Thermal distortion isolation system for turbine blade rings Thermal distortion isolation system for turbine blade rings

1987-08-24

1989-03-28

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

Circulating fluid within reactor

415134, 415219R, G21C 1500

Patent

active

048162132

ABSTRACT:
In a nuclear or fossil steam turbine, a novel arrangement of structural elements is utilized to support a stationary blade ring, that is normally supported on a radial wall of a turbine inner casing, on an upstream separate blade ring. Thus, the stationary blade ring is separated from undesirable thermal deformations that naturally occur in turbine inner casing structures. A downstream stationary blade ring is fit to the upstream separate blade ring to maintain its relative position, and is attached using connection bolting and alignment pins or dowels. The inventive system is compact, low cost, and reduces bladepath seal leakage, leading to improved heat rate.

REFERENCES:
patent: 3628884 (1971-12-01), Mierley, Sr. et al.
patent: 3841787 (1974-10-01), Scalzo
patent: 3892497 (1975-07-01), Gunderlock et al.
patent: 4699566 (1987-10-01), Miller
patent: 4701102 (1987-10-01), Pisz

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