64座客車空調(diào)系統(tǒng)設(shè)計(jì)及換熱器的優(yōu)化

車輛工程專業(yè)畢業(yè)論文，論文編號(hào):JX885  論文字?jǐn)?shù):30733.頁數(shù):52

摘要
 客車空調(diào)系統(tǒng)設(shè)計(jì)合理，不僅會(huì)改善乘員的乘坐舒適性，而且也能大大提高客車產(chǎn)品在市場中的競爭能力。本設(shè)計(jì)對整個(gè)空調(diào)車室的傳熱過程進(jìn)行了具體分析，認(rèn)為該傳熱過程是一個(gè)非穩(wěn)態(tài)的傳熱過程。對 HFF6120GK88 空調(diào)客車夏季工況的冷負(fù)荷進(jìn)行了具體計(jì)算，并計(jì)算出了相應(yīng)空調(diào)送風(fēng)量的大小。從空調(diào)制冷原理及客車設(shè)計(jì)的特點(diǎn)出發(fā)，結(jié)合客車實(shí)際運(yùn)行情況，客車在常用車速下，空調(diào)系統(tǒng)制冷量與客車車室所需的制冷量相符合的原則，保證了空調(diào)系統(tǒng)性能的充分發(fā)揮。本設(shè)計(jì)對 HFF6120GK88 客車的氣流組織進(jìn)行了分析與計(jì)算，確定該空調(diào)采用上送風(fēng)上回風(fēng)的氣流組織形式，并對送風(fēng)口、回風(fēng)口的大小及風(fēng)速進(jìn)行了計(jì)算；完成了 HFF6120GK88 客車送風(fēng)管道布置設(shè)計(jì)，計(jì)算了風(fēng)道的實(shí)際送風(fēng)量，為以后空調(diào)冷風(fēng)管道的合理設(shè)計(jì)積累了寶貴的經(jīng)驗(yàn)。
關(guān)鍵詞：客車空調(diào) 制冷量 制冷系統(tǒng)

Abstract
 If the bus air-conditioning system design is reasonable, not only can improve passenger's riding comfortableness, but also can increase the product's competitive ability greatly in market. First, the entire air conditioning room heat transfer process has carried on detailed analysis in the paper, know it is a non-stable state heat transfer process. Calculating the air conditioning cold load to be reasonable, then utilized the overtone respond method, the summer cold load has counted to HFF6120GK88 air conditioning bus, and calculated the amount of sending wind. From the air conditioning refrigeration principle and the characteristic of the passenger train designs embark, unifies the bus actual movement situation,, which the air-conditioning system refrigeration quantity and the passenger train vehicle room needs the refrigeration quantity tallies. The paper has carried on the analysis and the computation to HFF6120GK88 bus airflow form, determined this air-conditioning device used on top supply air and top return air organization form, the supply air opening and return air opening, the size and the wind speed has carried on the computation too; Has completed HFF6120GK88 bus supply air duct arrangement design, has calculated the air duct actual supply air quantity, accumulated the precious experience for later air-conditioning supply air duct reasonable design.
Key words: Bus Air-Conditioning   Refrigerating capacity   Refrigeration system

目   錄
摘要.Ⅰ
AbstractⅡ
目錄.Ⅲ
緒論1
課題背景...1
概論1
汽車空調(diào)的功用1
汽車空調(diào)的發(fā)展歷程.2
我國汽車空調(diào)的現(xiàn)狀.2
汽車空調(diào)的特點(diǎn).3
HFF6120GK88客車簡介及參數(shù)...5
第二章 HFF6120GK88客車空調(diào)制冷系統(tǒng)的設(shè)計(jì)及換熱器的優(yōu)化8
 2.1 空調(diào)的工作原理.8
 2.2 冷負(fù)荷計(jì)算.9
2.2.1工作條件的確定9
2.2.2 冷負(fù)荷的構(gòu)成...9
2.2.3太陽輻射的冷負(fù)荷的確定9
2.2.4玻璃滲入熱量的冷負(fù)荷..10
2.2.5新風(fēng)傳入車廂熱量的冷負(fù)荷..11
2.2.6乘員人體散發(fā)熱量的冷負(fù)荷..12
2.2.7通過主、副發(fā)動(dòng)機(jī)傳入熱量的冷負(fù)荷..12
2.2.8通過空調(diào)送風(fēng)機(jī)等儀表傳入熱量的冷負(fù)荷..13
2.2.9客車空調(diào)設(shè)計(jì)冷負(fù)荷的確定..13
2.2.10客車空調(diào)室內(nèi)人員散濕量的計(jì)算13
 2.3 HFF6120GK88客車空調(diào)送風(fēng)量的計(jì)算..14
 2.4換熱器15
 2.4.1換熱器的作用與基本要求.16
 2.4.2冷凝器的設(shè)計(jì)與校核計(jì)算.16
 2.4.3冷凝器的優(yōu)化設(shè)計(jì).20
 2.4.4蒸發(fā)器的作用與特點(diǎn).21
 2.4.5蒸發(fā)器的設(shè)計(jì)與校核計(jì)算.21
 2.4.6蒸發(fā)器的優(yōu)化設(shè)計(jì).25
 2.5 壓縮機(jī)的選配...25
 2.5.1粗選壓縮機(jī)型號(hào).........25
 2.5.2選定壓縮機(jī).28
 2.6 熱力膨脹閥的設(shè)計(jì)...28
     2.6.1熱力膨脹閥的選擇與安裝.29
 2.7 貯液干燥器...30
 2.8 小結(jié)...31
第三章 HFF6120GK88客車空調(diào)系統(tǒng)的布置設(shè)計(jì)..32
 3.1 概述...32
 3.2HFF6120GK8客車頂置空調(diào)的布置形式.32
 3.3 HFF6120GK88客車頂置空調(diào)的固定設(shè)計(jì)..32
 3.3.1客車頂置空調(diào)的固定方式選擇.32
 3.3.2 HFF6120GK88客車頂置空調(diào)的固定...34
 3.4 客車空調(diào)壓縮機(jī)的布置...35
 3.5 小結(jié)...35
第四章 HFF6120GK88客車室內(nèi)氣流組織及送風(fēng)管道設(shè)計(jì)計(jì)算..36
 4.1 概述...36
 4.2氣流組織的影響因數(shù)36
 4.3氣流組織的計(jì)算37
 4.4空調(diào)送風(fēng)管道的設(shè)計(jì)與計(jì)算38
 4.4.1空調(diào)送風(fēng)管道設(shè)計(jì)的基本任務(wù).38
 4.4.2空調(diào)送風(fēng)管道設(shè)計(jì)的基本任務(wù).39
     4.4.3客車空調(diào)送風(fēng)管道的布置和形狀的確定.39
     4.4.4 HFF6120GK88客車空調(diào)送風(fēng)管道的設(shè)計(jì)...40
 4.5小結(jié)42
第五章 HFF6120GK88客車隔熱改進(jìn)設(shè)計(jì)..43
 5.1 客車前部踏步總成的隔熱改進(jìn)...43
 5.2 客車發(fā)動(dòng)機(jī)艙的隔熱改進(jìn)...43
 5.3 小結(jié)...44
第六章 結(jié)論45
參考文獻(xiàn)..46
致謝..47