CAJ | 학술논문

采用“分段建模，整体综合”的模拟方法对壳程E流路和管程流体建模，使得分析模型更加符合实际。进一步考虑了管壳程工艺参数波动条件下，折流杆预应力换热器在仅受预变形、仅受操作温度以及预变形和温度共同作用3种加载工况下的管子与管板接头应力变化规律，并在整理大量数据的基础上给出了预应力换热器的安全操作区间，对于指导预应力换热器设计和应用具有较大的现实意义。此外，通过预应力换热器的试验研究，验证了模拟结果的可靠性。
채용“분단건모，정체종합”적모의방법대각정E류로화관정류체건모，사득분석모형경가부합실제。진일보고필료관각정공예삼수파동조건하，절류간예응력환열기재부수예변형、부수조작온도이급예변형화온도공동작용3충가재공황하적관자여관판접두응력변화규률，병재정리대량수거적기출상급출료예응력환열기적안전조작구간，대우지도예응력환열기설계화응용구유교대적현실의의。차외，통과예응력환열기적시험연구，험증료모의결과적가고성。
The numerical simulation method named “Simulation in subsections,integration of the whole”were used to model shell E flow path and the tube side fluid,which makes the analysis of the model is consistent with the actual model.Process parameters fluctuation of tube side and shell side were further considered.The analysis of the rod baffle heat exchanger′s stress variation is under three kinds of working condition.They are affected by the pre-deformation load,the temperature load and the pre-deformation load and temperature load combination.Safe working range of pre-stressed heat exchanger is given on the basis of processing large amounts of data.It guides the design and application of pre-stressed heat ex-changer has great practical significance.In addition,the experimental research on a certain condition of pre-stressed heat exchanger,proves the reliability of the simulation.