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Device for online monitoring and controlling thermal stress of components of steam turbine and method

A steam turbine and thermal stress technology, applied in the field of steam turbines, can solve the problem that the service life of other durable parts cannot be extended, and achieve the effect of reducing thermal stress

Active Publication Date: 2011-02-16
SHANGHAI POWER EQUIP RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a large steam turbine has more than a dozen durable parts, only the thermal stress monitoring and control of the high-pressure rotor cannot prolong the service life of other durable parts

Method used

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  • Device for online monitoring and controlling thermal stress of components of steam turbine and method
  • Device for online monitoring and controlling thermal stress of components of steam turbine and method
  • Device for online monitoring and controlling thermal stress of components of steam turbine and method

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Experimental program
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Embodiment

[0031] Such as figure 1 Shown, the block diagram of steam turbine parts thermal stress on-line monitoring and control device of the present invention, the steam turbine part thermal stress on-line monitoring and control device of the present invention is composed of computing server, database server, web server, client browser and factory-level monitoring information device ( SIS device), the web server is respectively connected to the client browser, the database server and the calculation server, the calculation server is connected to the database server, and the database server is connected to the steam turbine digital electro-hydraulic control device (DEH) through the plant-level monitoring information device (SIS device) and the steam turbine digital electro-hydraulic control device (DEH )connect.

[0032] Such as figure 2 Shown, the flow chart of the on-line monitoring and control method for thermal stress of steam turbine parts of the present invention, as image 3 A...

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Abstract

The invention provides a device for online monitoring and controlling thermal stress of components of a steam turbine and a method, belonging to the technical field of the steam turbine. The inventionis characterized in that the device consists of a compute server, a database server, a web server, a user browser and a plant supervisory information device (SIS device); the web server is connectedwith the user browser, the database server and the compute server respectively; the compute server is connected with the database server which is connected with a digital electric-hydraulic control device (DEH) of the steam turbine by the plant supervisory information device (SIS device). The invention has the advantages of providing the device for online monitoring and controlling thermal stressof a plurality of durable components of the steam turbine and realizing online computing and controlling of thermal stress of a plurality of durable components of the steam turbine.

Description

technical field [0001] The invention relates to an on-line monitoring and control device and method for thermal stress of steam turbine components, belonging to the technical field of steam turbines. Background technique [0002] The durable parts of the steam turbine include high-pressure rotor, medium-pressure rotor, low-pressure rotor, high-pressure inner cylinder, medium-pressure inner cylinder, low-pressure inner cylinder, high-pressure outer cylinder, medium-pressure outer cylinder, low-pressure outer cylinder, high-pressure nozzle chamber, high-pressure main steam valve housing 16 components including medium pressure main steam valve housing, high pressure regulating valve housing, medium pressure regulating valve housing, high pressure steam pipeline, medium pressure steam pipeline and so on. During the startup, shutdown and load changes of the steam turbine, due to the uneven temperature distribution along the radial direction of the components, relatively large the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M19/00G05B19/048G01M99/00
Inventor 史进渊徐坚邹军沈海华杨宇翁彦孙坚夏杰邓志成毕政益达得军吴茜
Owner SHANGHAI POWER EQUIP RES INST