FIELD: machine building.
SUBSTANCE: device for gas-turbine installation cooling consists of block of fans and of circular collector with orifices directed onto cooled surface of gas-turbine installation. Closed heat resistant elastic cases are assembled on the collector on both sides of a circular zone wherein there are arranged orifices. The said cases can be shaped into a circular circuit of the gas duct when a cooling air flow runs between them. With their free ends they contact cooled surface of the gas-turbine installation (GTI). The invention facilitates direction of whole volume of cooling air into the cooling zone of the gas-turbine installation thus intensifying heat exchange on its cooled surface. The closed heat resistant elastic cases screen heat radiation from hot surface of the gas turbine installation.
EFFECT: reduced consumption of cooling air, of power consumed with fans and of electric power in general.
1 dwg
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