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System and method for repairing a turbine engine in a power generation system

A technology of turbine engine and power generation system, applied in the direction of engine cooling, engine components, engine function, etc., can solve problems such as cooling hole or channel blockage

Inactive Publication Date: 2016-05-18
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is difficult to deliver the mixture inside the cooling channels formed in the airfoil
As a result, blockages can still form in cooling holes or channels

Method used

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  • System and method for repairing a turbine engine in a power generation system
  • System and method for repairing a turbine engine in a power generation system
  • System and method for repairing a turbine engine in a power generation system

Examples

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Embodiment Construction

[0028] The example systems and methods described herein provide a flow control system and an example flow network that may be used in a power generation system to effect repair of a turbine engine coolant line or conduit. The flow control system includes at least one control valve coupled to at least one nozzle of the turbine engine, wherein the control valve is configured to regulate fluid flow in a first direction or a second direction. The first direction is when fluid is delivered from the compressor to the nozzle and the second direction is when fluid is delivered from the nozzle to the discharge portion of the turbine engine. A controller is coupled to the control valve and is configured to selectively control fluid flow in a first direction and change the direction of fluid flow from the first direction to a second direction during operation of the turbine engine to facilitate repair of the turbine engine. By selectively reversing or changing the direction of fluid flow...

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Abstract

A flow control system (126) is provided. The flow control system includes at least one control valve (200) coupled to at least one nozzle (204) of a turbine engine (100), wherein the control valve is configured to regulate fluid flow in a first direction (218) or a second direction (219). The first direction is when the fluid is channeled from a compressor (202) to the nozzle and the second direction is when the fluid is channeled from the nozzle to an exhaust section of the turbine engine. A controller (220) is coupled to the control valve and is configured to control the fluid flow in the first direction during operation of the turbine engine and to change the direction of the fluid flow from the first direction to the second direction to facilitate reconditioning of the turbine engine.

Description

technical field [0001] The field of the invention relates generally to power generation systems, and more particularly to systems and methods for reconditioning turbine engines in power generation systems by reversing the direction of coolant flow. Background technique [0002] At least some known turbine engines are used in power generation systems such as cogeneration facilities and power plants. Such engines can have high specific work and power per unit mass flow demand. To increase the operating efficiency of the engine, at least some known turbine engines, such as gas turbine engines, operate at elevated combustion temperatures. In at least some known gas turbine engines, engine efficiency may increase as combustion gas temperature increases. [0003] Due to the increased temperature of the combustion gases, at least some known gas turbine engines use relatively small cooling holes or passages to deliver cooling air to critical areas within the turbine engine. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/12F02C7/12
CPCF01D5/005F01D25/002F01D25/32F05D2230/72F05D2260/607Y02E20/14
Inventor S.杜塔J.J.马尔多纳多
Owner GENERAL ELECTRIC CO