A system and method for evaluating the life of a boiler heating surface

Abstract

The invention relates to a system and method for evaluating service life of a boiler heating surface.The system comprises a detection device, a data processing device, an analysis device and a monitoring system.The detection device is sequentially connected with the data processing device and the analysis device, and the analysis device analyzes data and transmits the data to the monitoring system.The system is characterized by further comprising a trend prediction analysis device and a service life calculation device.The trend prediction analysis device performs future running trend analysis according to off-line and on-line data through a fuzzy neural network method.The service life calculation device determines the remaining service life, authenticates reversely whether the trend analysis of the trend prediction analysis device, and formulates a suggested running policy for prolonging the service life.The system can perform service life prediction and reverse authentication, so that the service life of a boiler is prolonged more effectively, and the safety performance is improved.

Description

technical field [0001] The present application relates to a boiler heating surface life assessment system and method, in particular to a boiler heating surface life assessment system and method capable of life prediction and reverse verification. Background technique [0002] The detection and diagnosis of equipment operation status is a very important research object in actual production and application. For example, the operation condition of boilers not only involves production efficiency, but also involves production safety. For example, Chinese invention application CN200810200502.3 discloses a firepower The self-diagnosis method for superheated steam temperature abnormalities in power plants provides diagnostic information to on-site centralized control operators, and provides a quick and easy method for the safe operation of thermal power plants and industrial equipment maintenance. However, this application can only provide estimated diagnosis and cannot Predict the ...

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Problems solved by technology

[0002] The detection and diagnosis of equipment operation status is a very important research object in actual production and application. For example, the operation condition of boilers not only involves production efficiency, but also involves production safety. For example, Chinese invention application CN200810200502.3 discloses a firepower The self-diagnosis method for superheated steam temperature abnormalities in power plants provides diagnostic information to on-site centralized control operators, and provides a quick and easy method for the safe operation of thermal power plants and industrial equipment maintenance. However, this application can only provide estimated diagnosis and cannot Predict the remaining life of equipment; for example, the discussion on the life evaluation of boiler heating surface tubes (Lin Lizhen, "Journal of Jiangxi Electric Power Vocational and Technical College", Volume 18, No. 4) discloses the life evaluation of boiler heating surface, mainly through The loss fraction method and the parameter method are used to evaluate the life loss, and the evaluation results cannot be verified, and no corresponding control strategy for extending the life is specified, which cannot solve the problem of equipment life well.

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