DIFFUSER SEAT WITH STEAM FLOW STABILIZING RIBS ON ITS INLET PART FOR STEAM TURBINE STEAM DISTRIBUTION ELEMENTS Russian patent published in 2024 - IPC F16K47/08 F01D17/16 

FIELD: power engineering.

SUBSTANCE: diffuser seat with steam flow stabilizing ribs for all types of valves of steam distribution systems of power steam turbines, on inlet section of which steam flow stabilizers are installed, which are ribs in form of plates, arranged along the circumference of the streamlined surface of the diffuser seat with an equal or variable pitch, equal or variable height and width, with the direction of the edges along the direction of movement of the medium, which are made integral with the diffuser seat, wherein the ribs-stabilizers are made up to the diameter of the valve shutoff members seating in the direction of the medium movement.

EFFECT: invention is intended to reduce hydraulic resistance in steam turbine steam inlet systems, stabilize the steam flow in the flow parts of the diffuser seats and at the outlet of the valves with simultaneous reduction of pressure pulsations in flow parts of valves, acoustic radiation, level of dynamic loads acting on all elements of valves and, as a result, to increase the valves vibration reliability.

2 cl, 3 dwg