F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
60/56, 170/62
F01D 25/24 (2006.01) F01D 25/26 (2006.01)
Patent
CA 1097567
LOW PRESSURE CASING FOR A STEAM TURBINE ABSTRACT OF THE DISCLOSURE A low pressure casing structure of a single shell type which houses, in a low pressure casing, a turbine rotor having turbine blades mounted thereon in a multi- plicity of stages, including a heat admitting portion located in an upper central part of the low pressure casing and formed therein with a steam admitting port for admitting turbine driving steam therethrough into the interior of the casing, turbine diaphragms rigidly secured to an inner surface of the casing for supporting stationary blades arranged in a multiplicity of stages axially of the turbine in association with the turbine blades of the turbine rotor, exhausted steam chambers each located at one of opposite ends of the casing axially of the turbine for receiving steam of low temperature and low pressure exhausted thereinto after doing work in the turbine, and a shell of the casing connecting the steam admitting portion to the exhausted steam chambers. The low pressure casing of a single shell type further includes wall means located along an outer surface of the shell in a manner to enclose same and cooperate therewith to define therebetween annular spaces for minimizing temperature differential between the inner and outer surfaces of the low pressure casing.
304365
Ikeda Tadasu
Taki Takamitsu
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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