管壳式换热器结垢厚度预测模型及应用 李栋.docVIP

中国工程热物理学会 学术会议论文 编号：143643 (李栋，，（东北石油大学土木建筑工程学院，黑龙江 大庆 163318） (Tel:0459-6507763, E-mail: lidonglvyan@126.com) 摘 要：基于动态参数管壳式换热器内部故障诊断管壳式换热器结垢理论模型管壳式换热器结垢理论模型比值热系数换热器换热能力 Prediction Model of Fouling Thickness of Tube and Shell Heat Exchanger and Its Application Li Dong, Lin Lin, Qi HanBing, Wang QiuShi, Wu GuoZhong, (School of Architecture and Civil Engineering, Northeast Petroleum University, Daqing 163318, China) Abstract: The internal fault diagnosis prediction application prospect which based on the temperature and pressure dynamic parameters of the tube and shell heat exchanger. Consider the influence of import and export parameters such as temperature and pressure dynamic parameters on the resistance coefficient of thermal efficiency, the theory prediction model of the tube and shell heat exchanger fouling thickness was studied. To run the tube and shell heat exchanger diagnosis field test research through the analysis of import and export dynamic parameters such as temperature and pressure of tube and shell side, and on the basis that for error analysis of tube and shell heat exchanger fouling thickness prediction model. The results showed that: the fouling thickness theory prediction model of tube and shell heat exchanger can implement internal scale thickness prediction and the theoretical analysis of the prediction error is less than 7% while the theory prediction model based on the import and export dynamic parameters such as temperature and pressure. The ratio of heat transfer coefficient can implement evaluation heat exchanger heat transfer capacity and scale when the flow of tube and shell heat exchanger is consistent. Key words：tube and shell heat exchanger; fouling thickness; prediction model 0 前言 管壳式换热器作为重要的换热设备，在石油化工生产领域广泛应用。油田三次采油中新型聚合物，换热器结垢明显增多，换热热阻增加、换热性能降低。热工参数检测管壳式换热器的结垢世纪年代有学者提出污垢热阻随时间的变化是沉积率与剥蚀率之差这一结垢模型，已有基于上述方法制成的仪器仪表，。钱剑峰热力学能耗分析法，了管壳式换热器中