Device for measuring carbon content of fly ash in boiler of electric power plant

Abstract

The invention discloses a device for measuring the carbon content of fly ash in a boiler of an electric power plant, by which the defect that the existing single microwave measurement on the carbon content of fly ash is easily affected by the variation of coal quality and the change of fly ash components can be overcome. The device comprises a flue operating state unit, a computer controlled fly ash carbon content analysis unit and an alarm display unit; and the device is technically characterized in that the flue operating state unit and a boiler operating state unit are respectively connected with the computer controlled fly ash carbon content analysis unit by first and second data buses and a data input unit so as to realize multiple signal acquisition and fusion processing in a flue and a boiler and finally complete the measurement on the carbon content of fly ash in a combined way based on microwave and RBF (Radial Basis Function) neural network. Compared with similar products, the device disclosed by the invention has the advantages of reasonable structural design and quick measuring speed; and by using the device, the real-time monitoring precision of measurement on the carbon content of fly ash is greatly improved, and the accuracy of measurement on the carbon content of fly ash is ensured.

Description

technical field [0001] The invention relates to a measuring device for carbon content in fly ash, in particular to a measuring device for measuring carbon content in fly ash of a power plant boiler using a combination of microwave and RBF (Radical Basis Function, Radial Basis Function) network, which is also suitable for real-time Monitor fly ash carbon content in other relevant sites. Background technique [0002] As we all know, the thermal efficiency of power plant boilers reflects the size of the boiler heat loss, and is an important indicator for evaluating the economical operation of boilers. One of the main losses affecting the thermal efficiency of power plant boilers is the loss of incomplete combustion of solids. The calculation of incomplete combustion losses of solids mainly depends on the carbon content of fly ash. In order to optimize the combustion of boilers, the carbon content of fly ash must first be realized. Quantity online measurement. According to rel...

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Problems solved by technology

[0003] The object of the present invention is to provide a carbon content measurement device for boiler fly ash in a power plant, which overcomes the disadvantages of being easily affected by coal quality changes and fly ash composition changes when the existing single microwave measures the carbon content of fly ash. Compared with similar products, it not only has reasonable structural design and fast measurement speed, but also greatly improves the measurement accuracy of real-time monitoring of fly ash carbon content, ensuring the accuracy of fly ash carbon content measurement

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