摘要
煤化工装置在高温、高压与高杂质条件下运行,常规换热设备在污堵、腐蚀和负荷波动下表现出适应性不足。结合煤化工工艺需求,提出了以管束构型调整、耐材体系划分、热流路径重构与扰动结构调节为核心的结构改进方案。基于现场典型工况设定五项评价指标,涵盖单位换热量、压降值、结垢速率、腐蚀速率与响应时间,建立常规结构与优化结构的性能对比体系。测试结果显示,优化结构在换热效率、流场稳定性与响应能力方面具备明显优势,展现出较强工程适配能力。
Coal chemical plants operate under high-temperature,high-pressure,and high-impurity conditions.Conventional heat exchangers exhibit insufficient adaptability under conditions of fouling,corrosion,and load fluctuations.Based on the process requirements of coal chemical plants,this study proposes a structural improvement scheme consisting adjustments to tube bundle configuration,classification of refractory material systems,reconstruction of heat flow paths,and regulation of disturbance structures.Based on typical site operating conditions,five evaluation criteria are set,covering specific heat transfer rate,pressure drop value,scaling rate,corrosion rate,and response time,to establish a performance comparison system between conventional and optimized structures.Test results show that the optimized structure demonstrates significant advantages in heat transfer efficiency,flow field stability,and response capability,exhibiting strong engineering adaptability.
作者
孙磊
SUN Lei(Datong Zhongxin Dingsheng Activated Carbon Co.,Ltd.,Datong Shanxi 037000,China)
出处
《化肥设计》
2025年第4期74-76,共3页
Chemical Fertilizer Design
关键词
煤化工
换热设备
结构构型
腐蚀控制
热工性能评估
coal chemical industry
heat exchanger
structural configuration
corrosion control
thermal performance evaluation
作者简介
孙磊(1985年-),男,本科,毕业于辽宁石油化工大学,现主要从事化工设备方面的工作。
