SUPPORT OF THE CYLINDER BODY OF A STEAM TURBINE Russian patent published in 2022 - IPC F01D25/28 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of power engineering, in particular to the coupling of cylinder housings and housing elements (bearing housings, as well as other housing parts) of a steam turbine with the provision of specified thermal expansions and minimum resistance forces in the coupling. The support of the cylinder body of a steam turbine contains a key body fixed to the housing element with a longitudinal groove and a vertical hole made in it and a key consisting of upper and lower parts. The upper part of the key is placed in the support groove of the cylinder body, and the lower part of the key is placed in the longitudinal groove and connected to the key body by a sleeve mounted in a vertical hole. The upper and lower parts of the key are made in one piece. The upper part of the key has side surfaces equipped with diamond-shaped removable inserts, and end surfaces with cutouts in which stops are installed. In the upper part of the body of the key, projections are made, on the end surfaces of which, symmetrically relative to the longitudinal and transverse planes of the key, grooves are made in which inserts with axial gaps are installed to ensure the function of turning the key. A hole is made in the lower part of the key coaxially with the vertical hole, while the bushing is installed in both holes.

EFFECT: increase in the workability of the support structure during installation, repair and commissioning, as well as the prevention of jamming of the body parts of the steam turbine and, consequently, an increase in the reliability of the steam turbine.

1 cl, 6 dwg