Steam turbine for part load operation

Details Steam turbine for part load operation Steam turbine for part load operation

1988-06-20

1989-11-21

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

4151995, 4152091, F01D 904

Patent

active

048818720

ABSTRACT:
In steam turbines operated with nozzle group control (3) in part load operation, a swirl cascade (4) is fitted downstream of the control wheel (2) in the flow direction. The partial flows emerging from the control wheel (2) are provided with a distinct swirl in the swirl cascade (4) and released into the transfer duct (9). The full admission reaction blading (7, 8) of the turbine is located at the end of this transfer duct, the flow being directly admitted to a first rotor blade row (7).

REFERENCES:
patent: 797064 (1905-08-01), Lindmark
patent: 1542453 (1925-06-01), Hodgkinson
patent: 2187778 (1940-01-01), Kraft
patent: 2396159 (1946-03-01), Cook et al.
patent: 4218180 (1980-08-01), Wikstrom
patent: 4403915 (1983-09-01), Teufelberger

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