Coal supply method of optimizing fire power plant by real-time coal firing heat value coefficient

A technology of coal-fired calorific value and coefficient, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as large differences in heat, no practical value, and no published patent documents.

CN102662318BActive Publication Date: 2013-09-18STATE GRID TIANJIN ELECTRIC POWER +1

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: STATE GRID TIANJIN ELECTRIC POWER
Publication Date: 2013-09-18

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Abstract

The invention relates to a coal supply method of optimizing a fire power plant by real-time coal firing heat value coefficient. The method includes monitoring various main parameters of a running unit in a certain time, multiplying and dividing relevant variable integral to obtain a dimensionless coefficient which can directly indicate relative capacity of real-time coal-fired heating quantity of the unit and provide operation basis for adjustment and control of an automatic power generation unit. By the coal supply method, an expensive coal-quality online analyzer can be substituted, online computing of real-time coal-fired heating quantity of the power generation unit is realized, and a coat-fired heating value coefficient is obtained. The coat-fired heating value coefficient can indicate data relation between real-time coal-fired heating quantity and designed value, which on one hand, can provide running references for monitors and can provide important operation data for an automatic power generation control system on the other hand. The coal supply method realizes real-time load adjustment of the unit and provides important insurance for safe and stable running of the unit and high-efficient peak pitching and frequency modulation of the power grid.

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Description

Technical field

[0001] The invention belongs to the technical field of automatic power generation control of power generation system units, and specifically relates to a method for optimizing coal supply for thermal power stations by using real-time coal-fired heating value coefficients. Background technique

[0002] Coal quality for generating units is an important parameter that all thermal power plants need to monitor in real time, but currently only the online coal quality analyzer can be used, which can provide reference calorific value and coal composition, but it is useful for realizing automatic power generation control (AGC) As far as the coordinated control system is concerned, it can only provide a reference for the operators. Because the test results cannot reflect the current coal quality in the furnace in time, this result cannot be used in the actual unit peak and frequency modulation. The practical value is limited, so many experts are in Research on the online ca...

Claims

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