Systems and methods for detecting undesirable operation of a turbine

A turbine and operating parameter technology, applied in the direction of control system, mechanical equipment, engine components, etc., can solve problems such as excessive wear of turbine components, thrust natural balance imbalance, failure, etc.

Inactive Publication Date: 2008-01-02
GENERAL ELECTRIC CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there is some risk in operating a turbine in an operating mode in which the operating parameter limits have been exceeded, which may occur regardless of whether the timer has run for a predetermined period of time
Such undesired operation may cause the natural balance of relative thrusts of opposing turbines to become unbalanced
Such a thrust imbalance of opposing turbines may result in high loads on turbine components, which may lead to excessive wear or failure of one or more turbine components

Method used

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  • Systems and methods for detecting undesirable operation of a turbine
  • Systems and methods for detecting undesirable operation of a turbine
  • Systems and methods for detecting undesirable operation of a turbine

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Embodiment Construction

[0019] The present invention relates to systems and methods for utilizing measured operating parameters to determine if a turbine has entered an undesired region of operation. If undesired conditions exist, the turbine control system initiates corrective action to avoid damage to components. In an exemplary embodiment of the invention, steam pressure and bearing metal temperature sensors are used to monitor steam turbine operating conditions using a steam turbine control system programmed with steam turbine control system protection logic. Based on the information provided by the sensors, the steam turbine control system may initiate priority actions to prevent excessive wear or damage to steam turbine components that typically occurs when the steam turbine component(s) have exceeded their threshold limits. More specifically, the steam turbine control system will detect when the steam turbine enters an operating region of unacceptable risk (eg, an undesired flow imbalance oper...

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Abstract

Systems and methods of detecting and correcting the undesirable operation of a turbine by monitoring one or more sensor devices, where each sensor device monitors one or more operating parameter values associated with various turbine components. If any of the sensor devices detects that a particular operating parameter associated with one or more turbine components is operating in a range of unacceptable risk, then corrective action is taken which may include opening and or closing one or more of the steam values associated with an inlet pipe until that particular operating parameter of the turbine is no longer operating in a range of unacceptable risk.

Description

technical field [0001] The present invention generally relates to systems and methods for determining undesired operation in a turbine or similar machine Background technique [0002] During turbine operation, it is often necessary to monitor operating parameters of various components of the turbine. Limits exist on operating parameters to ensure proper operation of the turbine and its components. For example, in the operation of a steam turbine it is necessary to set control limits for various operating parameters such as the steam pressure within the turbine. [0003] Typically, the parameter can detect operation above a set limit for a short amount of time without adverse consequences; however, if the parameter exceeds the limit for a long period of time, damage to the turbine may occur. Current methods for measuring the exceeding of a parameter limit detect in time the moment when the parameter limit is reached or exceeded. A timer is fired at this point to determine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D17/00
CPCF05D2270/303F05D2270/114F01D21/003F05B2270/1095F01D17/085F05D2220/31F05D2270/301F05B2270/16F05D2270/16F05D2270/3032F01D3/00F01D17/145F05B2270/3032F05B2270/303F05D2270/112F05B2270/1091F05B2270/301F05D2270/11F01D17/08F05B2270/109F01D21/00F01D21/14
Inventor N·A·蒂森彻克E·A·杜哈尔斯特
Owner GENERAL ELECTRIC CO
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