基于能级总组合曲线的化工过程功-热公用工程设置

doi:10.11949/j.issn.0438-1157.20180701

化工学报 ›› 2018, Vol. 69 ›› Issue (11): 4823-4831.DOI: 10.11949/j.issn.0438-1157.20180701

基于能级总组合曲线的化工过程功-热公用工程设置

董轩, 彭肖祎, 廖祖维, 孙婧元, 蒋斌波, 王靖岱, 阳永荣

化学工程联合国家重点实验室, 浙江大学化学工程与生物工程学院, 浙江杭州 310027

收稿日期:2018-07-02 修回日期:2018-10-17 出版日期:2018-11-05 发布日期:2018-11-05
通讯作者: 廖祖维
基金资助:
国家自然科学基金项目（21822809，61590925）；国家杰出青年科学基金项目（21525627）。

Optimal placement of work and heat utilities in chemical plants via energy level grand composite curve

DONG Xuan, PENG Xiaoyi, LIAO Zuwei, SUN Jingyuan, JIANG Binbo, WANG Jingdai, YANG Yongrong

State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China

Received:2018-07-02 Revised:2018-10-17 Online:2018-11-05 Published:2018-11-05
Supported by:
supported by the National Natural Science Foundation of China (21822809, 61590925) and the National Science Fund for Distinguished Young Scholars of China(21525627).

摘要/Abstract

摘要：

采用微分法计算能级，由此生成新的能级组合曲线，获得全流程的总能量目标。提出新的热-功集成图形方法——能级总组合曲线，在获得加热/冷却公用工程目标的同时得到系统所需功量目标，以及过程?损。以甲醇合成工艺为例，通过能级组合曲线和能级总组合曲线分析，获得功需求量为28 MW，冷公用工程用量为137 MW，减少能量消耗71.1%，并选择电能和循环冷却水作为甲醇工艺的公用工程。

关键词: 能级, ?, 集成, 优化, 系统工程, 功-热, 能级总组合曲线, 公用工程设置

Abstract:

In order to construct a novel energy level composite curve, the energy level concept is calculated by the differential concept. The new composite curve is capable of providing total energy target for the whole system. An energy level grand composite curve is further proposed to realize the simultaneous integration of thermal and work. The thermal target, the work target and the process exergy loss can be obtained in the energy level grand composite curve. The methanol synthesis process was selected for case study. Through graphic analysis of the energy level composite curve and the energy level grand composite curve, the work demand is 28 MW, the cold utility is 137 MW, and the energy consumption is reduced by 71.1%. Electricity and circulating cold water were selected as the utility of the methanol process.

Key words: energy level, exergy, integration, optimization, systems engineering, work and heat, energy level grand composite curve, placement of utilities

中图分类号:

TQ021.8

董轩, 彭肖祎, 廖祖维, 孙婧元, 蒋斌波, 王靖岱, 阳永荣. 基于能级总组合曲线的化工过程功-热公用工程设置[J]. 化工学报, 2018, 69(11): 4823-4831.

DONG Xuan, PENG Xiaoyi, LIAO Zuwei, SUN Jingyuan, JIANG Binbo, WANG Jingdai, YANG Yongrong. Optimal placement of work and heat utilities in chemical plants via energy level grand composite curve[J]. CIESC Journal, 2018, 69(11): 4823-4831.

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基于能级总组合曲线的化工过程功-热公用工程设置

Optimal placement of work and heat utilities in chemical plants via energy level grand composite curve

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