20世纪90年代以来，我国铁路进入了一个快速的发展时期，铁道车辆制冷与空气调节技术也取得了较快的发展，制冷和空调装置的应用越来越广泛，对经济发展和人民的物质文化生活水平的提高起着重要的作用。
本文将主要介绍热力学基本定律、热量传递的基本知识、客车空调装置的分析、客车空调与制冷装置的检修及常见的故障处理和空调与制冷装置运行中的检查方法与常用的检查仪表等内容。本文与客车空调装置和客车电气装置有着密切的关系。
通过本课题的设计，使我们能够熟练掌握万用表和兆欧表的使用，加深对蒸发器冷凝器等主要知识点的掌握。同时,培养了我们进行项目开发的协作精神﹑创造设计能力以及理论与实践相结合的能力。
关键词：冷凝器 蒸发器 压缩机 制冷装置
ABSTRACT
Since the 1990 s, China's railway has entered a rapid development period, the railway vehicle refrigeration and air conditioning technology has also made rapid development, the application of refrigeration and air conditioning device is more and more widely, for economic development and the improvement of people's material and cultural life play an important role.
This paper mainly introduces the basic knowledge of the basic law of thermodynamics, heat transfer analysis, air conditioning device, inspection method, operation and maintenance of bus air conditioning and refrigeration device and common fault handling and air conditioning and refrigeration equipment and common check instrument etc. in this paper and the bus air conditioning device and electric device are closely related.
The design of this subject, so that we can master the multimeter and megohmmeters usage, deepen our understanding of the main evaporator condenser to grasp the knowledge points. At the same time, cultivate the ability of cooperation, we create the project development and design ability and the combination of theory and practice.
Keywords: condenser，evaporator，compressor， refrigeration unit
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