A method and system for optimal modeling of energy flow and energy consumption of a galvanizing unit

Abstract

The invention discloses a method and system for optimizing modeling of energy flow and energy consumption of a galvanizing unit. In the invention, an energy model is mainly established for important energy consumption parts of a continuous hot-dip galvanizing production line. The present invention utilizes the theory of energy flow and based on the conservation of energy, analyzes the composition of energy consumption during the conversion process of electric energy and heat energy in the two parts of the heating furnace and the zinc pot in the production line of the galvanizing unit, and focuses on exploring the composition and characteristics of the energy flow. Finally, according to the internal relationship between the output power and various process parameters and the mapping mechanism, the energy input and output balance equations were respectively established to solve the method of minimizing the external input energy of the entire galvanizing production line. The energy model established by the present invention is meaningful, reasonable, simple and accurate, solves the energy consumption calculation problem of the galvanizing unit, and provides a basis for the follow-up discussion on the process parameter optimization of energy efficiency and the completion of multi-objective sequencing optimization research, and can also be used Carry out processing energy consumption assessment and forecast.

Description

technical field [0001] The invention belongs to the field of energy consumption optimization of a galvanizing unit, and relates to a method and system for optimizing modeling of energy flow and energy consumption of a galvanizing unit. Background technique [0002] my country's GDP accounts for about 8.6% of the world's total, but its energy consumption accounts for 19.3% of the world's total; energy consumption per unit of GDP is 3.3 times that of the United States, 7 times that of Japan, and 2.5 times that of the global average. The iron and steel industry is a major energy consumer. The energy consumption of China's iron and steel industry accounts for 16.1% of the country's total energy consumption, while the total industrial output value only accounts for 3.2% of the total GDP output value. Under the new normal of China's economy, the steel industry is facing increasingly severe challenges. China's steel industry, which accounts for about half of the world's steel produ...

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Problems solved by technology

[0005] Aiming at the shortcomings of the prior art model that does not consider the actual heat energy loss link and cannot accurately evaluate the energy loss, resulting in the inability to obtain the minimum external input power of the galvanizing unit, the present invention provides a modeling method for optimizing the energy flow and energy consumption of the galvanizing unit And system, used to evaluate the energy efficiency of galvanizing line, solve the technical problem of lack of energy consumption optimization model of galvanizing line

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