Thermal power plant vapor quality monitoring method and system

A thermal power plant, water vapor technology, applied in the direction of instruments, data processing applications, calculations, etc., can solve problems such as large errors, and achieve the effect of accurate water vapor quality monitoring conclusions
CN103544651AActive Publication Date: 2014-01-29ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Publication Date
2014-01-29

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Abstract

The invention provides a thermal power plant vapor quality monitoring method and system. Through introduction of gray system indexes and combination of a weight adjustment algorithm, a gray system including the weight adjustment algorithm no longer depends on single index measuring points and expert database data for inferring equipment faults, however, other multi-index measuring points are added to serve as characteristic parameters for unified inferential analysis, a gray relational coefficient of set weight values and a parameter sequence is calculated, then an expert system infers and defines calculated relational coefficient weight adjustment value, and a monitoring analysis conclusion is obtained finally to enable fault information covered by vapor quality change to be deeper, so that a thermal power plant vapor quality monitoring conclusion is more accurate.
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Description

technical field

[0001] The invention relates to the technical field of thermodynamic applications, in particular to a method and system for monitoring water vapor quality in a thermal power plant. Background technique

[0002] A thermal power plant, referred to as a thermal power plant, is a factory that uses coal, oil, and natural gas as fuel to produce electric energy. Its basic production process is: the fuel is burned in a boiler to heat water to make steam, and the chemical energy of the fuel is converted into heat. The steam pressure The steam turbine is driven to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives the generator to rotate, which converts the mechanical energy into electrical energy.

[0003] In order to ensure the normal operation of thermal power plants, it is essential to monitor the water vapor quality of thermal power plants. The existing monitoring methods of water vapor quality in thermal power plants ma...

Claims

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