FIELD: oil and gas industry.
SUBSTANCE: gas turbine comprises device with external and internal housings and a sealing ring, as well as additional device with additional inner and an additional external housings. Outer and inner housing of device are arranged to make a cooling channel. Seal ring is located between external housing and internal housing of device and seals cooling channel from environment surrounding outer body. Device has inner space surrounded by inner case, wherein working fluid medium flows through inner volume. Device and additional device are arranged to make a cavity surrounded by inner case, an additional inner case, external casing and an additional external casing. Seal ring is located between external housing and internal housing and there is only between internal housing and outer housing so that sealing ring seals cooling channel so that fluid medium inside cavity has no effect of coolant pressure in cooling channel. When making gas turbine cooling channel is formed between external and internal housings of device. Seal ring is located between external and internal housings so that sealing ring seals cooling channel from environment surrounding external housing. Device and additional device are installed together so that working fluid medium can flow from additional device to device.
EFFECT: group of inventions provides modularity of structure of gas turbine.
5 cl, 3 dwg
