共查询到10条相似文献,搜索用时 125 毫秒
1.
2.
石化工业是高能耗行业,发展面临资源紧缺的约束。基于信息化和工业化深度融合的能源管理系统,大幅度提高了能源的定量管理水平,在支撑企业节能方面应用前景广阔。中国石化应用信息技术构建能源管理信息系统促进企业实现节能,取得了较好的效果。论文阐述了能源优化系统的整体规划,并基于石化业务特点进行了能源优化系统的功能设计。以蒸汽动力优化系统为例,分析了优化系统的业务功能,并从机理模型构建、数据检测、数据校验、在线优化以及在线模型校验等方面论述了优化流程。最后,从中国石化下属的三家试点企业的应用成效出发,为石化企业推进节能降耗信息化建设提供参考。 相似文献
3.
The adsorptive separation of fructose from glucose has been carried out in a simulated counter-current chromatographic system using Zerolit-25SCR14 ion exchange resin in Ca++ form as the adsorbent. Rate and equilibrium constants have been determined from chromatographic retention time measurements. The performance of a simulated counter-current system comprising ten identical columns connected in series has been investigated and it is shown that the behaviour of such a system may be approximately represented by a simple McCabe–Thiele model. The HETP in the counter-current system is higher than would be expected for an ideal plug flow system, showing that axial mixing is important. The McCabe–Thiele analysis may be easily extended to a four section ‘Sorbex’ system and a preliminary assessment of the performance of such a unit is made on the basis of the kinetic and equilibrium parameters derived from the experimental study. 相似文献
4.
5.
6.
介绍TAC伺服系统在浮法玻璃生产线加速分离辊道改造中的应用,其电气控制系统采用TPLC可编程控制器,给出了系统工作原理流程罔,该系统投入运行后取得了较好的预期效果。 相似文献
7.
A predictive optimal control system for micro-cogeneration in domestic applications has been developed. This system aims at integrating stochastic inhabitant behavior and meteorological conditions as well as modelling imprecisions, while defining operation strategies that maximize the efficiency of the system taking into account the performances, the storage capacities and the electricity market opportunities.Numerical data of an average single family house has been taken as case study. The predictive optimal controller uses mixed-integer and linear programming where energy conversion and energy services models are defined as a set of linear constraints. Integer variables model the start-up and shut-down operations as well as the load dependent efficiency of the cogeneration unit. The proposed control system has been validated using more complex building and technology models to asses model inaccuracies. Typical demand profiles for stochastic factors have been used.The system is evaluated in the perspective of its usage in Virtual Power Plants applications. 相似文献
8.
运用夹点技术分析了某化工厂中型合成氨装置的换热网络,发现现有换热网络中有较多能量利用不合理的地方。本文提出两套节能改造方案,方案一不改变现有装置的蒸汽利用系统,适当改变现有换热系统的物流匹配,充分利用现有换热网络余热,使合成氨综合能耗下降10%;方案二根据工艺过程要求优化蒸汽利用系统,进行热电联产,合成氨综合能耗降低17.9%。节能改造的投资回收期一年左右。 相似文献
9.