摘要
长期以来,换热器的工艺设计采用类比试算的设计方法,使设计人员把大量精力和时间消耗于重复的烦琐计算,虽可与CAD技术结合,但最终结果往往只是一种可行方案,并不是一种最优方案。由设备技术经济学和设备综合管理角度出发,以纵流壳程换热器的设备投资作为目标函数,在多约束条件下,采用纵流壳程换热器传热系数及流体流动阻力的计算公式,对纵流壳程换热器的工艺设计进行了优化,设计过程一次完成,且能保证是约束条件下的最优设计方案。结果证明,优化算法有着传统算法不可比拟的优势,其设计思路同样可为设计其它型式换热器所借鉴。
Trial method was adopted to the technological design of heat exchanger for a long, which made designers spend a great deal of energy and time on iterate calculate. Though the work could be done by the CAD technology, the result will be a feasible project, not optimal. In the paper, according to the theory of equipment technology, economics and integration management of equipments, equipment investment is taken as the object function and the equations of heat transfer and fluid resistance of heat exchanger with longitudinal flow of shell - side fluid is adopted to optimize the technological design of heat exchanger under the condition of multiple constraints. The optimal algorithm for technological design can directly get the optimal project. Compared with the traditional method, the optimal algorithm has more advantages, and it can be adapted to the technological design of else kind of heat exchangers.
出处
《压力容器》
北大核心
2008年第8期16-19,59,共5页
Pressure Vessel Technology
关键词
纵流壳程换热器
工艺设计
优化设计
heat exchanger with longitudinal flow of shell - side fluid
technological design
optimal design
