CAJ | 학술논문

结合国内生产企业实际,提出了管壳式换热器性能设计优化计算的一种新思路：（1）明确优化目标和变量,尽可能施加更为明确的约束条件;（2）根据管程流速的范围和换热管的内径,确定单程换热管数的取值范围;（3）按照采用的设计标准,确定壳体内径的取值范围;（4）最后根据壳径预估折流板间距,并按照一定策略迭代计算更新换热管长和折流板数。该思路极大减小了设计优化计算量,并可得到满足各项热力性能指标的换热器结构参数的绝大部分方案,与以往先预估传热系数法和其它智能算法相比,更为简单、直接,需要的信息更少,而得到符合要求的解决方案变得更容易、全面。
결합국내생산기업실제,제출료관각식환열기성능설계우화계산적일충신사로：（1）명학우화목표화변량,진가능시가경위명학적약속조건;（2）근거관정류속적범위화환열관적내경,학정단정환열관수적취치범위;（3）안조채용적설계표준,학정각체내경적취치범위;（4）최후근거각경예고절류판간거,병안조일정책략질대계산경신환열관장화절류판수。해사로겁대감소료설계우화계산량,병가득도만족각항열력성능지표적환열기결구삼수적절대부분방안,여이왕선예고전열계수법화기타지능산법상비,경위간단、직접,수요적신식경소,이득도부합요구적해결방안변득경용역、전면。
A kind of new strategy of optimization and design of shell - and - tube heat exchanger was applied in domestic heat exchanger manufacturers, which included： specify the optimization object and design variables, and exert more constraints such as the bundle structure parameters, standards, operation conditions, etc ; confine the tube number of the bundle with fluid velocity of tube side and inner diameter of tube ; confine the shell diameter with designated standard ; and confine the baffle distance and update baffle number and tube length with iteration calculations. The calculation amount can be reduced significantly and at the same time, most of the solutions meeting the thermal indices and discrete design parameters can be obtained with less information and fewer difficulties compared with traditional methods.