| Industrial parks are the main body of social production and energy consumption.The energy consumption of all kinds of industr i al parks accounts for the largest proportion of energy consumption in iron and steel industrial parks.Therefore,it is of great significance to study the energy conservation and emission reduction work in iron and steel industrial parks for the whole industry and even the whole society.In this paper,Benxi Beiying Iron and Steel Group is taken as the research object to carry out system modeling of energy management and related analysis of energy efficiency.The main research work of this paper includes:(1)According to the structure of Benxi Steel Industrial Park,based on the analysis method of material flow and energy flow model,the material flow model and energy flow model of three levels of park-system-equipment are established at different levels.Through the established material flow and energy flow model,the relevant factors affecting material flow and energy flow are obtained by analyzing the typical equipment blast furnace system.(2)The concept of synergy degree of material flow and energy flow is introduced,and the influence of synergy degree of material flow and energy flow on energy consumption per ton of steel is analyzed.The synergy degree mainly includes three aspects:energy consumption per ton of steel,dissipated energy consumption and other energy consumption in steel production.Based on the production data of Benxi Iron and Steel Co.,Ltd.,the comprehensive energy flow diagram per ton of steel of Benxi Iron and Steel Co.,Ltd.Is calculated and obtained.(3)The unified energy consumption model of Benxi Steel Industrial Park is established,and the matrix form of the unified energy consumption model is listed according to the types of energy.The model is verified by using the relevant energy consumption data of Benxi Steel.According to the established unified model,the relevant data of Benxi Steel’s production system are optimized and analyzed.Comparing the four proposed optimization schemes,it is concluded that the best way to reduce energy consumption depends on the balance of energy production and self-marketing within the park.(4)Based on the industrial park of Benxi Steel Group,a set of evaluation system at three levels of park-system-equipment is established.Energy consumption will be selected as the evaluation index.Among them,the first-level index is a comprehensive index,with one.The secondary indicators are regional indicators of various energy systems,with six.The third-level index is the single index of each energy equipment,with 26.The energy consumption calculation adopts a new calculation method,and uses the relevant production data of Benxi Steel to calculate the corresponding energy consumption index.By analyzing the comparison of energy consumption before and after the improvement of Benxi Steel’s production technology,the corresponding evaluation is made. |