【正文】 .....................................................4 國(guó)際社會(huì)的努力 .............................................................................................................4 中國(guó)的工作 .....................................................................................................................4 保護(hù)臭氧層中國(guó)汽車(chē)空調(diào)行動(dòng) ................................................................................................5 汽車(chē)空調(diào) CFC12 淘汰政策文件 .................................................................................5 汽車(chē)空調(diào) CFC12 淘汰技術(shù)路線(xiàn) ..................................................................................5 汽車(chē)空調(diào) CFC12 淘汰行動(dòng) ...........................................................................................5 汽車(chē)空調(diào) CFC12 淘汰技術(shù)援助項(xiàng)目 ..........................................................................5 汽車(chē)空調(diào)維修拆解過(guò)程 CFC12 回收 ..........................................................................6 本教材編寫(xiě)目的和主要內(nèi)容 ...................................................................................................6 編寫(xiě)目的 ........................................................................................................................6 主要內(nèi)容 ........................................................................................................................6第 2 章 汽車(chē)空調(diào)用制冷劑 .....................................................................................................................7 制冷劑概述 ...............................................................................................................................7 常用制冷工質(zhì)的分類(lèi) .....................................................................................................7 對(duì)制冷劑的要求 .............................................................................................................7 CFC12 和 HFC134a 性質(zhì)的對(duì)比 ..........................................................................................8 飽和壓力表壓力對(duì)比 ......................................................................................................9 化學(xué)性質(zhì) .......................................................................................................................11 安全性 ...........................................................................................................................12 環(huán)境特性 .......................................................................................................................12第 3 章 汽車(chē)空調(diào)制冷系統(tǒng) ...................................................................................................................13 制冷原理 .................................................................................................................................13 汽車(chē)空調(diào)制冷系統(tǒng) .................................................................................................................13按照節(jié)流裝置分，目前常見(jiàn)的汽車(chē)空調(diào)制冷系統(tǒng)主要有熱力膨脹閥系統(tǒng)和節(jié)流短管系統(tǒng)。 .........................................................................................................................................13 熱力膨脹閥系統(tǒng) .........................................................................................................13 節(jié)流短管系統(tǒng) ...............................................................................................................15 汽車(chē)空調(diào)制冷系統(tǒng)主要部件 ..................................................................................................16 壓縮機(jī) ...........................................................................................................................16 冷凝器 ...........................................................................................................................192 / 62 蒸發(fā)器 ...........................................................................................................................20 節(jié)流裝置 .......................................................................................................................21第 4 章 汽車(chē)空調(diào)制冷系統(tǒng)維修 ...........................................................................................................28 制冷系統(tǒng)的泄漏 ......................................................................................................................28 泄漏原因 ........................................................................................................................28 制冷劑泄漏的檢查 ........................................................................................................28 制冷系統(tǒng)的維修 .......................................................................................................................31 汽車(chē)空調(diào)制冷系統(tǒng)維修安全 ........................................................................................31 制冷系統(tǒng)維修 ...............................................................................................................32 制冷系統(tǒng)的清洗 ............................................................................................................32 制冷系統(tǒng)抽真空 ...........................................................................................................33 制冷劑的加注 .......................................................................................................................34 潤(rùn)滑油及其加注 ...........................................................................................................39 測(cè)試制冷系統(tǒng)性能 .......................................................................................................40第 5 章 CFC12 制冷劑回收 ................................................................................................................43 回收前的準(zhǔn)備 ..........................................................................................................................43 人員設(shè)備條件準(zhǔn)備 .......................................................................................................43 制冷劑種類(lèi)的判斷 ........................................................................................................43 制冷劑是否需要回收的判斷 .....................................................................................