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Rotor and wheel cooling assembly for a steam turbine system

A technology for cooling components and steam turbines, applied to engine components, machines/engines, mechanical equipment, etc., which can solve problems such as insufficient flow circulation and reduced turbine output

Inactive Publication Date: 2013-10-23
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often, insufficient flow circulation persists, creating drag heating of the splitter, which causes drag to interact with the rotor and wheels, reducing turbine output

Method used

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  • Rotor and wheel cooling assembly for a steam turbine system
  • Rotor and wheel cooling assembly for a steam turbine system
  • Rotor and wheel cooling assembly for a steam turbine system

Examples

Experimental program
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Embodiment Construction

[0051] refer to figure 1 and 2 , a steam turbine generally indicated by reference numeral 10 . The illustrated steam turbine 10 is of a dual flow configuration and includes an outer casing 12 , an inner casing 14 , and a plurality of nozzles and blades forming stages on axially spaced sides of the steam turbine 10 . Turbine 10 also includes a rotor 16 mounted to the blades. The rotor 16 extends through opposite axial ends of the steam turbine 10 and within a flow splitter 18 configured in an annular shape, which may also be referred to as a splitter slot. A flow splitter 18 is located at the center of the steam turbine 10 and receives steam through a steam inlet 20 to flow the steam to the various turbine stages on axially opposite sides of the flow splitter 18 . In particular, the shunt 18 includes opposing halves, which are typically mirror images of each other, and thus only one half is shown and described. The opposing halves are referred to as the upper half 22 and th...

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PUM

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Abstract

A rotor (16) and wheel (17) cooling assembly (24) for a steam turbine system (10) includes a rotor (16) operably connected to a plurality of rotating buckets. Also included is a flow diverting member (18) having an inner radius (30) and operably coupled to at least one nozzle stage (28), wherein the flow diverting member (18) directs flow in at least one direction within the steam turbine system (10). Further included is a cooling flow dispenser (26) disposed radially outwardly of a portion of the rotor (16) and having at least one aperture (42), wherein the cooling flow dispenser (26) is operably coupled to the inner radius of the flow diverting member (18).

Description

technical field [0001] The subject matter disclosed herein relates to steam turbine systems, and more particularly, to assemblies for cooling rotors therein. Background technique [0002] Steam turbines typically include a static nozzle assembly that directs steam into rotating blades that are connected to a rotor. Multiple stages of baffles or nozzle assemblies are included and each stage is assembled around the rotor. Select sections of the steam turbine system have a dual-flow configuration in which the inlet steam is typically split to flow in two axially opposite directions. The stage that separates the flow is called a flow splitter or tub. After splitting the inlet steam, the steam flows axially in opposite directions through the nozzle and vane stages on each side of the splitter. [0003] Splitter stages with "higher" bowl temperatures require rotor cooling. This temperature will depend on the particular application, but 1000°F is an example of a common peak to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/12
CPCF05D2220/31F01D25/12
Inventor P.P.桑科利D.穆克霍帕迪亚伊
Owner GENERAL ELECTRIC CO