森林工程2025，Vol.41Issue(3)：546-554,9.DOI:10.7525/j.issn.1006-8023.2025.03.011
基于夹点技术考虑碳排放的胶合板生产换热网络优化
Optimization of Heat Exchange Network for Plywood Production Considering Carbon Emission Based on Pinch Point Technology
摘要
Abstract
The production of plywood consumes a large amount of energy.In order to improve economic efficiency,sup-port carbon peak and carbon neutrality goals,it is necessary to improve energy efficiency and reduce energy consump-tion.This article took 5 heat exchange logistics in the production process of plywood as the research object,used pinch point technology to analyze the heat exchange network under existing production conditions,and proposed optimization and improvement plans.Aspen Plus was applied to establish a heat exchange network in the plywood production pro-cess,calculate the stream flow rate and physical property data of each side line,divide the temperature range,deter-mine the minimum heat transfer temperature difference,and calculate the pinch point temperature.The traditional pinch point method determined the minimum heat transfer temperature difference ∆Tmin to be 9℃.After considering carbon emissions,the minimum heat transfer temperature difference ∆Tmin was adjusted to 7℃,and the average pinch point temperature was 116.5℃.The pinch point temperature was used to analyze and diagnose the phenomenon of crossing pinch points in the heat exchange network,accurately located the bottleneck position of the heat exchange network,ad-justed the improperly configured cold and hot stream heat exchangers,and achieved the goal of optimizing the entire heat exchange network.After optimization,the usage of cold and hot utilities in the system decreased by 862 465.0 kW and 202 642.0 kW respectively,significantly reducing the energy consumption of the equipment.关键词
夹点技术/胶合板/换热网络优化/碳排放/能源Key words
Pinch point technology/plywood/optimization of heat exchange network/carbon emissions/energy分类
能源科技引用本文复制引用
李奇澳,罗武生,江枫,文韬,喻胜飞..基于夹点技术考虑碳排放的胶合板生产换热网络优化[J].森林工程,2025,41(3):546-554,9.基金项目
湖南省自然科学基金面上项目(2022JJ31008). （2022JJ31008）
