Hearth slagging prediction system and method for ultra-supercritical pulverized coal boiler

Abstract

The invention relates to a hearth slagging prediction system for an ultra-supercritical pulverized coal boiler. The hearth slagging prediction system comprises a power station boiler database, a neural network algorithm system and an online service system; the power station boiler database comprises a DCS database, an infrared sensor test data module and a coal quality detection result data module; the neural network algorithm system comprises a fuzzification algorithm module and a neural network algorithm module. The invention has the advantages that the RPROP algorithm is adopted, the DCS database of the power station is embedded into the system, the system is embedded into the online service system, real-time and online monitoring of the slagging condition of the boiler furnace is achieved, and power station workers can monitor, optimize and adjust the boiler operation condition at any time; a fuzzy neural network algorithm is utilized to predict the slagging condition of the hearthmore accurately; hardware facilities do not need to be purchased separately; the system can guide power plant personnel to perform optimization operation adjustment in time, and is simple and convenient to use.

Description

technical field [0001] The invention relates to the field of ultra-supercritical pulverized coal boilers, in particular to a furnace slagging prediction system and method for an ultra-supercritical pulverized coal boiler. Background technique [0002] In the past 10 years, in order to improve the energy conversion rate and reduce the coal consumption of power supply, the power industry has developed ultra-supercritical units on a large scale, and its development trend is closer to the direction of high parameters and large capacity. According to statistics, more than 400 600MW and 1000MW ultra-supercritical units have been put into operation. With the continuous deepening of research and the gradual expansion of market demand, ultra-supercritical units have become the key research objects of countries all over the world. It is expected that for a long time to come, coal will still be the main primary energy source, and ultra-supercritical pulverized coal boilers will also oc...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, aiming at the problem of slagging in the furnace of the existing ultra-supercritical pulverized coal boiler and the problems of the prior art such as low prediction accuracy, high and complicated device cost, etc., to provide a A system and method for predicting furnace slagging in an ultra-supercritical pulverized coal boiler, allowing power plant personnel to optimize and adjust in time

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