1、 I 摘 要 本论文主要介绍了冷风机的应用及其设计方法，开篇介绍了冷风机的应用及其发展情 况，阐述了冷风机的基本工作原理，构造，特点，以及冷风机所特有的一些优缺点，讨论 了三维设计方法的产生、发展及其在冷风机设计中的应用。简要地介绍了冷风机的主要选 型方法，给出了本课题需要完成的任务。之后介绍了冷风机设计计算的相关内容，给出了 冷风机设计计算和校核的具体步骤，并针对一个特定的工况进行了设计计算和校核，最后 简单介绍了一些常用的三维设计软件， 并重点叙述了 Pro/E 软件的特点、 发展及入门知识， 并以举例说明了 Pro/E 三维绘图的基本步骤，并最终绘制出冷风机的三维图形。通过这个 设计过程
2、可以看出，与传统的设计方法相比较，三维设计直观方便，大大减轻了手工设计 时的工作量和出错率，节省了设计时间，提高了设计效率和准确性。 关键词：冷风机；三维设计；Pro/E 制图 II Abstract This paper mainly introduced the application of air cooler and its design method, at the beginning of the paper, it introduced the application of air cooler and its development ,including its basic p
3、rinciple ,structure ,characteristic ,and some peculiar advantages and disadvantages. The article discussed the production, development of the 3d design method and its application in the air cooler design. The paper briefly introduced the main method to select the air cooler, and give the task that n
4、eeds to be finished of the subject. Then it introduced the related knowledge on the design calculation of the air cooler, and gave the specific steps of the air cooler design calculation and check ,and design calculation and check for a specific operation, at last the paper briefly introduced some c
5、ommon used 3d design software ,and mainly described the characteristics ,development and the ABC knowledge of the Pro/E ,and illustrate the basic steps of Pro/E 3d drawing .According to this design process ,we can see compared to traditional design methods ,3d design is more intuitive and convenient
6、 ,it largely reduced the workload and error rate in manual design ,saved the design time and improved the efficiency and accuracy of the design. Keywords: air cooler; 3d design; the Pro/E mapping 1 第一章 前言 1.1 选题的背景和意义 冷风机是一种很常见的制冷装置，从它出现到现在已经经历了几十年的发展，最初的 冷风机主要是用于石油化工行业的空气冷却装置，现在已经广泛的应用于社会生活的各个 方面。 冷风机是通过机内压缩机、冷凝器、膨胀阀及蒸发器中制冷剂的循环来产生冷量，通 过蒸发器内低温制冷剂与空气间的热交换将冷量传递给给空气，使空气温度下降，并通过 风机将冷空气吹入需要制冷的地方1。由冷风机的制冷原理不难看出，冷风机具有许多诸 如空调等其它制冷设备所不具有的优良性能，比如，可以节省工业用水，减少污染，适用 于需要通风保鲜的场合，尤其是食品储存方面，这也使得它在许多领域具有不可或缺的
