制冷系统监测仪的设计及关键技术研究

发布时间：2018-11-26 13:54

【摘要】：随着国民经济的发展，人们对生活品质的要求越来越高。制冷系统是提升人们生活品质的重要设备之一，成为了人们家居必备产品。冰箱和冷柜提供的冷藏和冷冻方式，保证了食品新鲜，空调设备为居民提供了舒适的家居空气环境。所以，对制冷系统的维修、维护显得越发重要。保证制冷系统的良性运行能够有效地改善人居环境、节约能源、保护环境。当前对制冷系统进行维保主要是传统的机械式和查表法。本论文阐述了制冷系统监测仪及其分析软件的开发过程和测试结果，该系统克服了传统方式的操作繁琐、分析复杂、携带不便等缺点。具有一体化、便携性、智能化等优点，可有效地用于制冷系统的调试、安装、检修、维护等。论文介绍了制冷系统国内外研究现状，在分析制冷原理、研究维修策略等基础上，，提出了制冷系统监测仪及其分析软件的设计方案，详细阐述了实现过程，分析了其中关键技术。经过测试，系统功能完善、运行稳定。制冷系统监测仪用于对制冷系统各个参数的测量和分析。系统采用ARM Cortex-M3的低功耗微处理器STM32L151CB为核心，设计了显示、采集、通信、控制等多个模块的硬件系统，并编写基于C语言的控制程序，使得各个模块能够协调统一地工作。并在此基础上，分析了采集、标定、功耗、抗干扰等方面的关键技术。制冷系统分析软件用于配合制冷系统监测仪，进行功能拓展、直观显示、深入分析等功能。软件基于微软公司的.NET平台编写，采用C#WinForm的编程方式，用SQL2005数据库作为数据存储。进行了控制模块、通信模块、数据分析模块、数据库模块、数据交互模块的开发。并分析了数据加密、数据交互、压焓图等方面的关键技术。最后对制冷系统监测仪及其分析软件分别进行了测试。首先进行了模块测试，在各个模块都正常工作的情况下再进行集成测试。集成测试通过后，将系统放置于试验台，测试系统在真实制冷系统环境中的工作状况。测试结果表明，系统功能完善、工作稳定、抗干扰性强，可应用于制冷系统中。
[Abstract]:With the development of national economy, people's demand for quality of life is higher and higher. Refrigeration system is one of the important equipments to improve people's quality of life. Refrigerators and refrigerators provide refrigerating and freezing methods to ensure fresh food, air conditioning equipment for the residents to provide a comfortable home air environment. Therefore, the maintenance and maintenance of refrigeration system becomes more and more important. Ensuring the benign operation of refrigeration system can effectively improve the living environment, save energy, and protect the environment. At present, the maintenance of refrigeration system is mainly based on the traditional mechanical and table checking method. This paper describes the development process and test results of the refrigeration system monitor and its analysis software. The system overcomes the shortcomings of the traditional operation, such as complicated operation, complex analysis, inconvenient carrying and so on. With the advantages of integration, portability, intelligence and so on, it can be effectively used in the commissioning, installation, overhaul and maintenance of refrigeration system. This paper introduces the current research situation of refrigeration system at home and abroad. Based on the analysis of refrigeration principle and maintenance strategy, the design scheme of refrigeration system monitor and its analysis software is put forward, and the realization process is described in detail. The key technologies are analyzed. After testing, the system function is perfect and the operation is stable. The refrigeration system monitor is used to measure and analyze the parameters of the refrigeration system. The system adopts ARM Cortex-M3 low power microprocessor STM32L151CB as the core, designs the hardware system of display, acquisition, communication, control and so on, and compiles the control program based on C language, which makes each module work harmoniously and uniformly. On this basis, the acquisition, calibration, power consumption, anti-interference and other key technologies are analyzed. The analysis software of refrigeration system is used to cooperate with the monitor of refrigeration system. The software is based on. Net platform of Microsoft Corporation. It uses C#WinForm programming method and SQL2005 database as data storage. Control module, communication module, data analysis module, database module, data interaction module are developed. The key techniques of data encryption, data interaction and enthalpy diagram are analyzed. Finally, the refrigeration system monitor and its analysis software are tested. First, the module test is carried out, and then the integration test is carried out under the condition that each module works normally. After the integrated test is passed, the system is placed on the test bench, and the working condition of the system in the real refrigeration system environment is tested. The test results show that the system has the advantages of perfect function, stable work, strong anti-interference, and can be used in refrigeration system.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB657;TP216

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