Energy Optimization of Iron and Steel Enterprises论文.pdf

Energy Optimization of Iron and Steel Enterprises ·1 · Energy Optimization of Iron and Steel Enterprises Lin Yu, Li Bing, Niu Honghai, Chen Jun (Research Department of Nari-Relays Electric Co., Ltd., Jiangsu, China) Abstract The cooperated optimization model of energy in iron and steel enterprises is built based on the research of coupling relationship of gas, steam and power. And by using the hierarchical decomposition method, the model is broken down into two parts: optimization of gas system and optimization of thermal and power system. The case analysis indicates that: the model can dispatch the energy of gas, steam and power reasonably, safely and efficiently when the production condition is changed, and improve the energy utilization efficiency. Key words iron and steel enterprises, energy system, cooperated optimization, energy-saving 1 Introduction Iron and Steel Industry is an important basic industry of China and also a big energy consumer in manufacturing industry, which accounts for more than 15% of China’s energy consumption. High energy consumption has increasingly become an important problem restricting the development of Iron and Steel Industry. Iron and steel enterprises have many energy-saving measures, such as improving technological process, raising equipments’ energy efficiency, optimizing energy dispatching method, etc.. Wherein, optimizing energy dispatching and raising energy utilization rate are easier to implement than other energy-saving measures, and have relatively bi