초록 ▼

A method and apparatus for cooling the hot gas casing of a gas turbine power plant is disclosed. The apparatus includes a shell which is spaced from but which encompasses the hot gas casing so as to form an air channel about the casing. A compressor provides a supply of cooling air which flows into

A method and apparatus for cooling the hot gas casing of a gas turbine power plant is disclosed. The apparatus includes a shell which is spaced from but which encompasses the hot gas casing so as to form an air channel about the casing. A compressor provides a supply of cooling air which flows into the air channel through openings in the shell, and which air absorbs heat from the hot gas casing as it flows through the air channel.

대표청구항 ▼

Apparatus for cooling a hot gas casing of a gas turbine power plant comprising: a combustion chamber enclosing a combustion space; a hot gas casing connected downstream of said combustion chamber; guide means for guiding a stream of cooling air over an outer surface portion of said hot gas casing; a

Apparatus for cooling a hot gas casing of a gas turbine power plant comprising: a combustion chamber enclosing a combustion space; a hot gas casing connected downstream of said combustion chamber; guide means for guiding a stream of cooling air over an outer surface portion of said hot gas casing; a compressor for supplying cooling air to said guide means; a gas turbine which receives hot gas from said combustion chamber, said combustion chamber being fixed with respect to the gas turbine, said compressor and said gas turbine being mounted on a common shaft; said guide means including a shell which is spaced from and encompasses said hot gas casing to form a channel between the casing and the shell, openings in the surface of the shell to permit cooling air to enter said channel, separation means for separating air flowing into the channel from air flowing off the hot gas casing; and said hot gas casing including means for inducing a film cooling of an inner surface portion of said hot gas casing.