Method for monitoring unit power generation coal consumption deviation caused by variation of gas boiler operating parameters

Abstract

The invention discloses a method for monitoring unit power generation coal consumption deviation caused by the variation of gas boiler operating parameters and mainly aims at the problem that a traditional method fails in analyzing the unit power generation coal consumption deviation of the gas boiler by use of partial differential. The method for monitoring the unit power generation coal consumption deviation caused by the variation of the gas boiler operating parameters comprises at least the steps of obtaining the reference data of the major operating parameters of the gas boiler and the real-time operating data of the unit, respectively, performing fuel combustion calculation of the gas boiler and the gas boiler thermal efficiency calculation based on the real-time operating data of the unit, respectively, calculating the unit power generation coal consumption deviation caused by the deviation of major controllable operating parameters away from reference values based on a first calculation formula, a second calculation formula and a third calculation formula, respectively, and displaying the calculation results on a terminal. The method for monitoring the unit power generation coal consumption deviation caused by the variation of the gas boiler operating parameters is capable of monitoring the unit power generation coal consumption deviation caused by the deviation of operating values of the major controllable parameters of the gas boiler away from the reference values online, and providing basis for optimized operation of the power generation unit of the gas boiler.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a method for monitoring coal consumption deviations in generating units for power generation caused by changes in main controllable operating parameters of gas boilers. Background technique [0002] Iron and steel enterprises produce a large amount of by-product gas during the smelting process. As the main user of gas resource recovery and utilization, gas boilers have been widely used in iron and steel enterprises. In recent years, with the active development of energy saving and consumption reduction work in iron and steel enterprises, the economic operation of gas generator sets has gradually attracted attention. [0003] Among the various operating parameters of the gas boiler, the exhaust gas temperature, the oxygen content of the exhaust gas and the carbon monoxide (CO) content in the exhaust gas are the main controllable operating parameters that affect the economic perfor...

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Problems solved by technology

[0004] At present, there is no report on the influence of the controllable parameters of the gas boiler on the coal consumption of the unit for power generation, and similar studies are basically carried out on the traditional pulverized coal boiler

However, the fuel characteristics and fuel combustion calculation methods of metallurgical gas boilers and conventional pulverized coal boilers are very different, especially in the nested relationship between flue gas volume and excess air coefficient, making the traditional coal-fired boiler Coal consumption deviation monitoring and analysis methods cannot be applied to gas boilers

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