Steam turbine steam strainer

Details Steam turbine steam strainer Steam turbine steam strainer

1994-11-25

1996-01-23

Look, Edward K.

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

55467, 137549, F03B 1108

Patent

active

054860881

ABSTRACT:
In a steam turbine inlet which includes an annular steam strainer stationarily positioned therein for stopping the passage into the turbine of large metal particles, the improvement in the strainer which comprises a plurality of spaced through holes in a major portion of the strainer circumference, the through holes being of differing diameters, with holes of like diameter being positioned in longitudinally-extending, circumferential zones, holes of the largest diameter being disposed in zones where metal particles are least likely to enter the holes, holes of smaller diameter being disposed in zones where metal particles are most likely to enter the holes, and a longitudinally-extending zone in the strainer without holes where the particles velocity and direction of movement would be damaging to any holes located in such a zone.

REFERENCES:
patent: 3044484 (1962-07-01), Dunning
patent: 4024891 (1977-05-01), Engel et al.
patent: 4077739 (1978-03-01), Heilenbach
patent: 4134425 (1979-01-01), Gussefeld et al.
patent: 5014746 (1991-05-01), Heyman

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