EXHAUST DEVICE OF TURBOMACHINE Russian patent published in 2014 - IPC F01D25/30 

FIELD: machine building.

SUBSTANCE: exhaust device of a turbomachine includes a housing with an inlet hole located around a turbine rotation axis, a diffuser, an outlet hole located in the external wall of the housing and an additional partition wall. The diffuser includes axial and radial parts formed with internal and external path walls respectively, which are located inside the housing around the turbine rotation axis. The additional partition wall is made inside the housing of the device in a plane of perpendicular rotation axis of the turbine with perimetre and parallel to its walls of the device housing walls. In the additional partition wall there is a hole coaxially to the turbine rotation axis, the diameter of which is equal to maximum diameter of external path wall of the radial diffuser part. In lower part of the additional partition wall there are through slots symmetrically and mirror-like relative to vertical axis of the above partition wall. Along the perimetre of through slots there rigidly and tightly installed are hollow boxes made in the form of flattened pyramids with two curved edges. Bases of the above flattened pyramids, which have smaller surface area, are directed to the side of the turbine of the device; space from upper edge of the additional partition wall to upper edge of the housing wall containing an inlet hole of the unit is covered with a tight flat wall.

EFFECT: invention allows improving efficiency of the device and efficiency of a gas turbine unit.

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