A digital characterization method of coal-fired boiler operating state

Abstract

The invention discloses a digital representation method of a coal-fired boiler operation state. The method comprises the steps that data is collected from four main tubes of a boiler; according to thecollected data, the corrosion rate of the boiler and parameters needed by the residual service life are calculated respectively; key data affecting boiler operation is screened out from the collecteddata according to corresponding boiler operation safety requirements; the residual wall thickness value of the boiler tubes, the residual service life value of the boiler and the smallest allowable thickness value of the boiler tubes are calculated respectively; the residual wall thickness valve, the residual service life value and real-time temperature and pressure values of the boiler are compared with specified allowable operation parameters of the boiler; the overall operation state of the boiler is judged; three state intervals are represented by different colors; different serial numbers are given to different boilers, and the serial numbers corresponding to the boilers are displayed through green, yellow and red on a display interface. The analysis accuracy of collected mass data is high, boiler real-time operation state health values can be visual, the tube burst frequency can be reduced, and long-period operation of the boiler is achieved.

Description

technical field [0001] The invention relates to a coal-fired boiler operation monitoring method. In particular, it relates to a digital representation method for the operating state of a coal-fired boiler. Background technique [0002] At present, foreign boiler operating status and combustion status detection, boiler water quality supervision and control methods are relatively complete, maintenance strategies are relatively clear, and boiler accident shutdown events are rare. In the middle of the 20th century, the American Electric Power Research Association developed a boiler maintenance workstation especially for power plant boilers. Its core is the boiler tube failure diagnosis expert system, which is the first expert system for boiler accident diagnosis developed in the United States. After the 1990s, the coal-fired thermal power plant operation support system developed by the application of artificial intelligence technology in Hokkaido, Japan, includes support functi...

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Problems solved by technology

[0003] my country is relatively late in the technical supervision of boiler operation diagnosis. At present, large-scale power generation units in the power industry have increased investment in boiler reliability management. A lot of technical work has been done on high temperature damage detection, but these basic detection data are integrated to form a complete set of digital analysis methods and displayed to the boiler management personnel, so that they can understand the operating status of the boiler in real time, so that the technology can be adjusted and analyzed in time, so that the boiler Technology that operates at an optimal level still does not

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