【正文】
i 畢業(yè)設(shè)計(jì)(論文) 題 目 POLO 空調(diào)制冷系統(tǒng)的檢測 與維修 系 別 專 業(yè) 班 級(jí) 學(xué)生姓名 學(xué) 號(hào) 指導(dǎo)教師 2022 年 5 月 ii POLO 空調(diào)制冷系統(tǒng)的檢測與維修 摘要 : 本文闡述了 POLO 制冷系統(tǒng)的故障檢修。對(duì) POLO 制冷系統(tǒng)的故障分析過程中必須要了解制冷系統(tǒng)的工作原理結(jié)構(gòu)等,同時(shí)還要掌握制冷系統(tǒng)的檢漏方法。本文主要介紹了 POLO 制冷系統(tǒng)的組成、工作原理、檢修和使用時(shí)的注意事項(xiàng)。 POLO 制冷系統(tǒng)主要包括壓縮機(jī)、冷凝器、蒸發(fā)器、儲(chǔ)液罐等部件,文中作了撿的介紹,并由此引出了 POLO 制冷系統(tǒng)中常出的故障,以及主要部件常出現(xiàn)的故障,并針對(duì)這些故障給出了相應(yīng)的診斷方法 及維修方案 。 POLO 這款車采用的是半自動(dòng)空調(diào),本文主要研究了 制冷系統(tǒng) 機(jī)械方面故障。制冷系統(tǒng)中最常見的故障有不制冷 及 制冷不足 等 ,本文從 制冷系統(tǒng)的 組成和 工作 原理入手采用循序漸進(jìn)的檢查方法進(jìn)行診斷。 然后對(duì)著故障按正確的方法進(jìn)行維修或更換。論文最后的 制冷系統(tǒng) 使用 注意事項(xiàng)也能幫助車主 更加 合理 地 使用制冷系統(tǒng)。 關(guān)鍵詞 : POLO、制冷系統(tǒng)、 檢測 、 維修 iii POLO Air Conditioning and Refrigeration Systems Testing and Maintenance Abstract: This paper describes the POLO refrigeration system troubleshooting. POLO cooling system failure analysis process must understand the working principle of the refrigeration system structure, but also to grasp the cooling system leak detection. This paper introduces the POLO refrigeration system of position, working principle, maintenance and use of Notes. POLO refrigeration system including pressor, condenser, evaporator, liquid storage tanks and other parts of the text were made by picking up the introduction and thus leads to the POLO cooling system is often a failure, as well as the main ponents often malfunction, and for these failures are given the appropriate diagnostic methods. POLO car with a semiautomatic air conditioning, and mechanical failure. The most mon fault in the refrigeration system has no refrigeration and cooling insufficient, this article from the structure and principle to start using stepbystep inspection method for diagnosis. Keywords: POLO, Refrigeration, Testing, Maintenance iv 目 錄 前言 ................................................................................................................................ 1 第一章 制冷系統(tǒng)的工作原理與結(jié)構(gòu) .......................................................................... 2 空調(diào)制冷系統(tǒng)的工作原理 .............................................................................. 2 制冷系統(tǒng)的基本組成 ...................................................................................... 3 壓縮機(jī) .................................................................................................... 3 冷凝器 .................................................................................................... 5 蒸發(fā)器 .................................................................................................... 5 儲(chǔ)液干燥器 ............................................................................................ 6 膨脹閥 .................................................................................................... 7 制冷系統(tǒng)的基本參數(shù) ...................................................................................... 7 制冷系統(tǒng)容量參數(shù) ................................................................................ 7 R134a 制冷劑溫度 壓力參數(shù) .............................................................. 7 第二章 制冷系統(tǒng)的檢修 .............................................................................................. 8 制冷系統(tǒng) 的檢測 ............................................................................................ 10 制冷系統(tǒng)維修注意事項(xiàng) ...................................................................... 10 制冷系統(tǒng)的檢漏 .................................................................................. 10 壓力與溫度的檢測 ............................................................................... 11 制冷系統(tǒng)主要部件常見故障檢修 ................................................................ 12 壓縮機(jī) .................................................................................................. 12 冷凝器 .................................................................................................. 12 儲(chǔ)液干燥器 .......................................................................................... 13 蒸發(fā)器 .................................................................................................. 13 制冷系統(tǒng)常見故障的分析與診斷 ................................................................ 13 第三章 制冷系統(tǒng)的典型故障分析 ............................................................................ 16 制冷系統(tǒng)常見故障分析 ................................................................................ 16 系統(tǒng)不制冷 .......................................................................................... 16 系統(tǒng)制冷不足 ...................................................................................... 16 制冷系統(tǒng)實(shí)例分析 ........................................................................................ 17 典型案例一 .......................................................................................... 17 v 典型案例二 .......................................................................................... 17 典型案例三 .......................................................................................... 18 第四章 制冷系統(tǒng)使用注意事項(xiàng) ................................................................................ 19 結(jié)論 ................................................................