Steam turbine shell disassembly method

Details Steam turbine shell disassembly method Steam turbine shell disassembly method

1995-01-30

1996-04-30

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having multiple parts releasably clamped

411395, F01D 2524

Patent

active

055119417

ABSTRACT:
In a steam turbine shell which includes a horizontal joint, flanges and bolts or studs, washers and nuts, the provision of special disassembly bolts or studs, washers and nuts to be used to replace certain initially removed operating bolts or studs, washers and nuts to accept the forces which would normally build up on the remaining operating bolts or studs or washers, or nuts caused by the tendency of the shell to distort as bolts or studs, washers and nuts are removed, the special disassembly bolts or studs, or washers, or nuts having special characteristics, including a high thermal coefficient of expansion, the special disassembly bolts and washers being coated with a friction reducing compound and having high short term strength to enable their easy removal, even from a distorted shell.

REFERENCES:
patent: 1839849 (1932-01-01), Hodgkinson
patent: 4206060 (1980-06-01), Yamamoto et al.
patent: 4991563 (1991-02-01), Ashley
patent: 5063661 (1991-11-01), Lindsay

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