煤粉鍋爐畢業(yè)設(shè)計(jì)

煤粉鍋爐畢業(yè)設(shè)計(jì)【篇一：鍋爐畢業(yè)設(shè)計(jì)】大同煤炭職業(yè)技術(shù)學(xué)院1080t/h鍋爐燃燒系統(tǒng)設(shè)計(jì)摘要1080t/h鍋爐燃燒系統(tǒng)的畢業(yè)設(shè)計(jì)主要為爐膛燃燒系統(tǒng)的設(shè)計(jì)。在爐膛燃燒系統(tǒng)的設(shè)計(jì)中，要對(duì)爐膛、燃燒器及屏式過熱器進(jìn)行設(shè)計(jì)計(jì)算和熱力計(jì)算。對(duì)燃燒系統(tǒng)進(jìn)行初步的經(jīng)濟(jì)性分析，爐膛的設(shè)計(jì)要從燃料的選擇開始，爐膛必須能適合燃料燃燒的要求，使燃料充分的燃燒；屏式過熱器布置在鍋爐爐膛的上方，過熱器吸收了爐膛必需的輻射傳熱量和對(duì)流傳熱量，并把爐膛出口煙氣溫度限制在合理范圍內(nèi)，設(shè)計(jì)要充分發(fā)揮煙氣流的偏移能起到阻尼和導(dǎo)流作用。前言鍋爐燃燒設(shè)備是組織燃料安全經(jīng)濟(jì)地燃燒的生產(chǎn)裝置。我國發(fā)電廠大型鍋爐主要是固態(tài)排渣煤粉爐。畢業(yè)設(shè)計(jì)是對(duì)煤粉燃燒器及爐膛的結(jié)構(gòu)、原理、特點(diǎn)進(jìn)行分析設(shè)計(jì)，通過一系列的計(jì)算來證明煤粉燃燒器及爐膛的合理性及經(jīng)濟(jì)性。鍋爐使用的燃料以煤和油為主，近年來因世界油價(jià)猛漲，燃煤鍋爐的比例有所增加。世界各國包括我國在內(nèi)，為了加快火電廠建設(shè)速度，降低火電廠每千瓦設(shè)備費(fèi)用、基建投資、金屬耗量、運(yùn)行管理費(fèi)用，提高機(jī)組的經(jīng)濟(jì)性，節(jié)約燃料，電廠鍋爐總的趨勢(shì)是向大容量、高參數(shù)的方向發(fā)展。畢業(yè)設(shè)計(jì)的的主要內(nèi)容包括煤種的選擇、鍋爐結(jié)構(gòu)的設(shè)計(jì)、鍋爐燃燒系統(tǒng)的熱力計(jì)算。目錄1080t/h鍋爐燃燒系統(tǒng)設(shè)計(jì)摘要..........................................................................1前言..............................................................................................................................................11．1煤質(zhì)分析.........................................................................................................................................41．1．1、燃料的選用............................................................................................................41．1．2、成分分析................................................................................................................51．2燃料消耗量計(jì)算及熱平衡...................................................................................................51．2．1、燃料計(jì)算：............................................................................................................61．2．2、鍋爐的有效輸入熱量及各項(xiàng)熱損失....................................................................81．2．3、鍋爐的熱平衡......................................................................................................11第二章爐膛設(shè)計(jì)...............................................................................................................122．1爐膛結(jié)構(gòu)設(shè)計(jì)...........................................................................................................................122．1．1、爐膛結(jié)構(gòu)設(shè)計(jì)（帶前屏過熱器）：..................................................................122．1．2、水冷壁的設(shè)計(jì)......................................................................................................172．2燃燒器的結(jié)構(gòu)設(shè)計(jì).................................................................................................................182．2．1、燃燒器的設(shè)計(jì)......................................................................................................192．2．2、燃燒器結(jié)構(gòu)尺寸計(jì)算..........................................................................................191.4.1預(yù)期達(dá)到的目標(biāo)..................................................................................81.4.2困難設(shè)想..............................................................................................82鍋爐結(jié)構(gòu)設(shè)計(jì)說明..................................................................................................92.1鍋爐的總體布置.............................................................................................92.2鍋爐結(jié)構(gòu).......................................................................................................102.2.1爐膛水冷壁........................................................................................102.2.2鍋筒及鍋筒內(nèi)設(shè)備............................................................................122.2.3燃燒設(shè)備............................................................................................142.2.4蒸汽過熱器及汽溫調(diào)節(jié)....................................................................152.2.5省煤器................................................................................................172.2.6空氣預(yù)熱器........................................................................................192.2.7除渣裝置............................................................................................212.2.8吹灰裝置............................................................................................212.2.9鍋爐構(gòu)架............................................................................................222.2.10密封裝置..........................................................................................222.2.11爐墻結(jié)構(gòu)..........................................................................................233熱力計(jì)算................................................................................................................243.1主要設(shè)計(jì)參數(shù)...............................................................................................243.2燃料特性.......................................................................................................243.3輔助計(jì)算.......................................................................................................243.3.1空氣平衡............................................................................................243.3.2燃燒產(chǎn)物體積及焓的計(jì)算................................................................243.3.3煙氣特性計(jì)算....................................................................................253.3.4煙氣的焓溫表....................................................................................253.3.5鍋爐熱平衡及燃料消耗量計(jì)算........................................................253.4爐膛的結(jié)構(gòu)及熱力計(jì)算...............................................................................253.5屏式過熱器的結(jié)構(gòu)及熱力計(jì)算...................................................................253.6對(duì)流過熱器的結(jié)構(gòu)及熱力計(jì)算...................................................................263.7轉(zhuǎn)向室的結(jié)構(gòu)及熱力計(jì)算...........................................................................263.8熱量分配.......................................................................................................263.9省煤器和空氣預(yù)熱器的結(jié)構(gòu)及熱力計(jì)算...................................................263.10熱力計(jì)算主要參數(shù)匯總.............................................................................26結(jié)論..........................................................................................................................27致謝..........................................................................................................................28參考文獻(xiàn)......................................................................................................................29附錄Ⅰ熱力計(jì)算表..................................................................................................30附錄Ⅱ鍋爐部件結(jié)構(gòu)圖..........................................................................................49【篇三：煤粉鍋爐課程設(shè)計(jì)】目錄第1章鍋爐的總體布置..............................................1第2章空氣平衡....................................................1第3章燃燒產(chǎn)物及煙氣焓溫表........................................23.1燃燒產(chǎn)物的計(jì)算.............................................23.2煙氣特性...................................................33.3煙氣焓溫特性...............................................4第4章鍋爐熱平衡及燃料消耗量計(jì)算..................................6第5章爐內(nèi)換熱計(jì)算................................................75.1燃燒器特性.................................................75.2爐膛結(jié)構(gòu)設(shè)計(jì)...............................................85.3爐膛熱力計(jì)算...............................................9第6章對(duì)流傳熱計(jì)算...............................................116.1過熱器結(jié)構(gòu)設(shè)計(jì)............................................116.1.1第一級(jí)過熱器結(jié)構(gòu)....................................116.1.2第二級(jí)過熱器結(jié)構(gòu)設(shè)計(jì)................................116.2對(duì)流過熱器熱力計(jì)算........................................126.2.1第一級(jí)過熱器熱力計(jì)算................................126.2.2第二級(jí)過熱器熱力計(jì)算................................14第7章省煤器結(jié)構(gòu)設(shè)計(jì)及熱力計(jì)算...................................167.1高溫煤器設(shè)計(jì)計(jì)算..........................................167.1.1高溫省煤器結(jié)構(gòu)設(shè)計(jì)..................................167.1.2高溫省煤器結(jié)構(gòu)尺寸設(shè)計(jì)..............................177.1.3高溫省煤器熱力計(jì)算..................................187.2低溫煤器設(shè)計(jì)計(jì)算..........................................197.2.1低溫省煤器結(jié)構(gòu)設(shè)計(jì)..................................197.2.2低溫省煤器結(jié)構(gòu)尺寸設(shè)計(jì)..............................217.2.3低溫省煤器熱力計(jì)算..................................21第8章空氣預(yù)熱器結(jié)構(gòu)設(shè)計(jì)及熱力計(jì)算...............................238.1空氣預(yù)熱器結(jié)構(gòu)尺寸設(shè)計(jì)....................................238.2空氣預(yù)熱器熱力計(jì)算........................................24第9章熱力計(jì)算數(shù)據(jù)的修正和計(jì)算結(jié)果匯總...........................279.1熱力計(jì)算數(shù)據(jù)修正..........................................279.2排煙溫度校核..............................................279.3熱空氣溫度校核............................................289.4鍋爐熱平衡誤差校核........................................28第10章個(gè)人總結(jié)....