鍋爐原理12-鍋爐熱力計(jì)算及其設(shè)計(jì)布置教學(xué)課件

沙現(xiàn)工大單能動(dòng)單院第十二章鍋爐熱力計(jì)算及其設(shè)計(jì)布置§1、鍋妒本體的典型布置§2、鍋妒主要設(shè)計(jì)參數(shù)的選擇§3、電廠鍋妒熱力計(jì)算的任務(wù)及順序§4、妒膛熱力計(jì)算§5、對(duì)流和半輻射受熱面的熱力計(jì)算Page1PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL§1鍋妒本體的典型布置1、∏型、『型布置鍋妒2、塔型、半塔型布置鍋爐3、影響鍋妒布置的因素Page2PrinciplesofBoiler2020/5/5魯Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL540少士凡騖燒獵亞臨界自然循環(huán)汽包鍋13Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL3,分隔屏過熱器4.后屏過熱器5、屏式再熱器強(qiáng)制循環(huán)鍋爐縱剖面布置7、木級(jí)過格器杜吊管11、墻式軸射再熱器12.低溫水平過熱器13.省煤器14,燃燒器15、循環(huán)泵16.水冷壁17、回轉(zhuǎn)式空氣預(yù)熱器19,出渣裝置圖Page4Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL1、Ⅱ型布置鍋妒∏型布置:應(yīng)用范圓最廣。●∏型布置:由垂直柱體爐膛、水平煙道和下行對(duì)流煙道組成?！駌型布置:(∏型布置中取滴了中間的走廊與水平煙道)緊湊省鋼材,但是部煙道檢修不便。1/2Page5PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL∏型布置特點(diǎn)◆高度較低,安裝方便;◆易布置成逆流傳熱方式;◆燃料進(jìn)給設(shè)備和排煙口都在鍋妒底層,遂風(fēng)機(jī)、引風(fēng)機(jī)除塵暴等笨重設(shè)備可布置在地面,減輕了廠房和鍋爐構(gòu)的負(fù)載,可以系用簡(jiǎn)便的懸吊結(jié)構(gòu)占地較大;◆煙道轉(zhuǎn)穹易引起飛灰對(duì)受熱面的局部磨損Page6PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL2、塔型、半塔型布置鍋妒●型布鍋妒:樹對(duì)流煙道布置在爐的上方,鍋妒直向上發(fā)長(zhǎng),取消了不宜布置受熱面的轉(zhuǎn)穹堂特點(diǎn):占地面積小;對(duì)流煙道有自身通風(fēng)作用;煙氣在對(duì)流受熱面中不改變流動(dòng)方向,對(duì)于多灰燃料非常有利。遁用于燃用煙媒以及正壓燃嬈的然油、燃?xì)忮伓省！衤仕筒贾缅伓?空氣預(yù)熟暴,送引風(fēng)機(jī),除塵等笨重設(shè)備布置在地面1/1Page7PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL上海+1145m蒸友平:2,78tmnr外高橋超臨界煤粉鍋爐SH279ba/54再熱菜汽參數(shù)RH7bar56日°CPage8±0.0mValadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyLparallelcountercounteSH-2RH-221480x2148077counterSH-IPLPage9PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL3、影響鍋妒布置的因◆蒸流壓力的影響◆鍋爐容量的影響◆燃料性質(zhì)對(duì)鍋妒布置的影響◆熱空氣溫度對(duì)尾部受熱布置影響1/5P910PrinciplesofBoiler2020/5/5Valadononry.chAs