煤气系统供需预测及剩余煤气优化分配

根据钢铁企业实际情况,将生产过程分为正常生产和非正常生产,分别建立煤气产耗预测模型.正常生产工况模型使用因果函数分析法计算,非正常生产工况使用启发式标定法并配合自学习功能进行计算.应用数学规划方法建立缓冲用户煤气使用分配模型,该模型可以指导气柜和锅炉间的配合运行,及时给出剩余煤气量的合理分配方案,实现剩余煤气的高效利用,根据缓冲用户的特性使煤气资源利用最大化.最后以某钢铁企业为研究对象,介绍了本系统模型的使用情况,结果表明,利用上述系统模型可以成功消除钢铁企业煤气放散,实现节能环保的生产目标.

Supply-Demand Forecast of Byproduct Gas System and Optimized Allocation of Surplus Gas

According to the practical situation in steel enterprises， the production process is classified into normal and abnormal production. Forecasting models of the gas production /consumption were established. Causal analysis is used for normal production and heuristic demarcate methods matching with self-learning function are used for abnormal production. A gas-allocating model for buffer users was established by using a mathematical programming method. The model can guide the co-operation between gasholders and boilers， and thus reasonably allocate the remained gas and maximize the utilization of the gas according to the characteristics of buffer users. Finally， the model was applied to a steel company， and the results show that gas emission can be successfully eliminated， which achieves the energy-saving production target.