Online real-time combustion optimization technology method for coal-fired power plant boiler

Abstract

The invention provides an online real-time combustion optimization technology method for a coal-fired power plant boiler. The online real-time combustion optimization technology is characterized in that the online real-time combustion optimization technology is an open-loop online combustion optimization guidance method and does not affect the normal operation of the DCS, and a new combustion adjustment method is recommended on the basis of statistics and calculation analysis of operating data. The operating personnel of a unit adopt the new adjustment method provided by the invention throughintuitive data and picture comparison, so that the combustion organization of the boiler is relatively optimized, and thus, the economical efficiency of the unit is improved in operation. The online real-time combustion optimization technology method relates to the technical field of combustion adjustment of a coal-fired power plant, and can be used as a guide for combustion optimization in the daily operation of the unit. The online real-time combustion optimization technology method enables the combustion organization of the boiler to be optimized in the operation process by counting the main operation adjustment methods of the boiler combustion, and recommending the new operation adjustment method in combination with online real-time data analysis, achieves the purpose of improving theeconomical efficiency of the unit in the operation process, and is relatively conducive to the operation performance monitoring, energy saving, emission reduction and the like of coal-fired power plant equipment.

Description

technical field [0001] The invention relates to a technical method for online real-time combustion optimization of a boiler in a coal-fired power plant, and belongs to the technical field of performance calculation and optimization of a thermal power plant. Background technique [0002] my country's energy composition is dominated by coal, and thermal power currently accounts for about 70% of all power generation. According to the latest forecast for the medium and long-term development of the power industry, by 2020, my country's total installed capacity will reach 1.34 billion kilowatts, of which the total installed capacity of coal power is 910 million kilowatts. It is estimated that by 2050, my country's thermal power generation will still account for 50% of all power generation methods. [0003] In the field of coal combustion for power generation, there are currently the following problems when power plant boilers use different types of coal: [0004] First of all, coa...

AI Technical Summary

Problems solved by technology

However, after the coal in the boiler is partially changed, the test report cannot fully cover the adjustments required after the change in the coal in the furnace; After partial technical improvement of the pulverization system and other hardware, it will also have a certain impact on the pulverization and combustion of the boiler. Therefore, the traditional combustion adjustment test has certain limitations, and there is a lack of timely guidance for operators to optimize combustion online.

[0008] In summary, under the background of the combination of traditional power generation and "Internet +", technologies such as online real-time monitoring of unit energy consumption have been reported. At present, it is necessary to develop online real-time combustion optimization technology for boilers as soon as possible to improve the traditional combustion adjustment technology of power plant boilers. Hysteresis and limitations

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