Double flow reheat diaphragm

Details Double flow reheat diaphragm Double flow reheat diaphragm

1981-04-01

1983-07-12

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Circumferentially spaced nozzle or stator segments

415217, 415189, 415219R, F01D 904

Patent

active

043927785

ABSTRACT:
In a double flow section of a steam turbine, the inner web of the diaphragm surrounding the rotor shaft in the region of divergence of the steam flow paths, is fabricated in the form of two cylindrical shells which are held together either in a fixed position or in a relatively fixed position which permits some slight axial motion between the shells. This form of diaphragm eliminates a number of machining and fabrication alignment problems and additionally permits differential axial expansion of the two pieces occurring as a result of internal thermal steam conditions.

REFERENCES:
patent: 1267229 (1918-05-01), Junggren
patent: 4078812 (1978-03-01), Beckershoff

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