Monitoring method for deviation of coal consumption in power generation of units caused by changes in operating parameters of gas boilers

Abstract

The invention discloses a method for monitoring the coal consumption deviation of a unit for power generation caused by changes in operating parameters of a gas boiler. The coal consumption deviation monitoring method of the unit power generation caused by the change of the operating parameters of the gas boiler of the present invention at least includes: separately obtaining the benchmark data of the main operating parameters of the gas boiler and the real-time operating data of the unit; and respectively performing fuel combustion of the gas boiler based on the real-time operating data of the unit Calculation and thermal efficiency calculation of the gas boiler; based on the first calculation formula, the second calculation formula and the third calculation formula, respectively calculate the coal consumption deviation of the unit power generation caused by the deviation of the main controllable operating parameters from the reference value, and display the calculation results on the terminal. The invention can monitor on-line the coal consumption deviation of the power generation unit caused by the deviation of the operation value of the main controllable parameters of the gas boiler from the reference value, and provides a basis for the optimized operation of the gas boiler generator set.

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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