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Method for online monitoring thermal deviations of final superheater and final reheater of boiler of power station

A final stage superheater and final stage reheater technology, applied in lighting and heating equipment, steam generation, control systems, etc., can solve problems affecting the safe operation of boilers, damaged pipes, etc., and achieve fast online real-time calculation and online Monitoring and control, the effect of prolonging the service life

Active Publication Date: 2010-09-15
SHANGHAI POWER EQUIP RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A tube burst in a large-capacity supercritical boiler during operation will not only cause huge direct economic losses, but also cause the hidden danger of continuous tube burst due to the damage of a large area of ​​tubes near the burst area, seriously affecting the safe operation of the boiler

Method used

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  • Method for online monitoring thermal deviations of final superheater and final reheater of boiler of power station
  • Method for online monitoring thermal deviations of final superheater and final reheater of boiler of power station
  • Method for online monitoring thermal deviations of final superheater and final reheater of boiler of power station

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Effect test

Embodiment

[0028] For a supercritical 600MW utility boiler final-stage superheater and final-stage reheater heating surface in a power plant, the thermal deviation online monitoring device was used to calculate the thermal deviation and start-up conditions of the final-stage superheater and final-stage reheater heating surface , and the historical optimal working condition.

[0029] Such as figure 1 As shown, the block diagram of the intelligent wall temperature management device of the boiler final stage superheater and the final stage reheater of the present invention, the boiler final stage superheater and the final stage reheater intelligent wall temperature management device consists of a computing server, a database server, a web server, The plant-level monitoring information system (PI system) is composed of the user-browsing server. The web server is connected to the user-side browser, the database server and the computing server, the computing server is connected to the database...

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Abstract

The invention provides a method for online monitoring thermal deviations of a final superheater and a final reheater of a boiler of a power station. The method comprises the following steps of: firstly, building an online monitoring device, then reading online detection data, calculating the thermal deviation of each screen and each tube according to the read online detection data, and storing and displaying the result. The invention has the advantages of realizing the fast online real-time calculation and the online monitoring and controlling of the thermal deviations of the final superheater and the final reheater of the boiler, realizing the safety operation of the final superheater and the final reheater of the boiler within the service period and prolonging the service life of the final superheater and the final reheater of the boiler.

Description

technical field [0001] The invention relates to an on-line monitoring method for the thermal deviation of the final superheater and the final reheater of a power station boiler, belonging to the technical field of power station boilers. Background technique [0002] At present, my country's generating units have entered the development stage of large capacity and high parameters, and a batch of 600MW and 1000MW supercritical generating units have been put into operation one after another. With the increase of boiler parameters, especially the increase of steam temperature, some parameters different from subcritical parameters such as the overheating problem caused by scale in the tube become more prominent. A tube burst in a large-capacity supercritical boiler during operation will not only cause huge direct economic losses, but also cause the hidden danger of continuous tube burst due to the damage of a large area of ​​tubes near the burst area, seriously affecting the safe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B35/18
Inventor 陈朝松刘平元施鸿飞张妮乐魏增涛杨凯镟刘进王飞
Owner SHANGHAI POWER EQUIP RES INST
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