锅炉原理12-锅炉热力计算及其设计布置教学课件

沙现工大单能动单院第十二章锅炉热力计算及其设计布置§1、锅妒本体的典型布置§2、锅妒主要设计参数的选择§3、电厂锅妒热力计算的任务及顺序§4、妒膛热力计算§5、对流和半辐射受热面的热力计算Page1PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL§1锅妒本体的典型布置1、∏型、『型布置锅妒2、塔型、半塔型布置锅炉3、影响锅妒布置的因素Page2PrinciplesofBoiler2020/5/5鲁Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL540少士凡騖烧猎亚临界自然循环汽包锅13Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL3,分隔屏过热器4.后屏过热器5、屏式再热器强制循环锅炉纵剖面布置7、木级过格器杜吊管11、墙式轴射再热器12.低温水平过热器13.省煤器14,燃烧器15、循环泵16.水冷壁17、回转式空气预热器19,出渣装置图Page4Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL1、Ⅱ型布置锅妒∏型布置:应用范圆最广。●∏型布置:由垂直柱体炉膛、水平烟道和下行对流烟道组成。●r型布置:(∏型布置中取滴了中间的走廊与水平烟道)紧凑省钢材,但是部烟道检修不便。1/2Page5PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL∏型布置特点◆高度较低,安装方便;◆易布置成逆流传热方式;◆燃料进给设备和排烟口都在锅妒底层,遂风机、引风机除尘暴等笨重设备可布置在地面,减轻了厂房和锅炉构的负载,可以系用简便的悬吊结构占地较大;◆烟道转穹易引起飞灰对受热面的局部磨损Page6PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL2、塔型、半塔型布置锅妒●型布锅妒:树对流烟道布置在炉的上方,锅妒直向上发長,取消了不宜布置受热面的转穹堂特点:占地面积小;对流烟道有自身通风作用;烟气在对流受热面中不改变流动方向,对于多灰燃料非常有利。遁用于燃用烟媒以及正压燃娆的然油、燃气锅妒。●率塔型布置锅妒:空气预熟暴,送引风机,除尘等笨重设备布置在地面1/1Page7PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL上海+1145m蒸友平:2,78tmnr外高桥超临界煤粉锅炉SH279ba/54再热菜汽参数RH7bar56日°CPage8±0.0mValadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyLparallelcountercounteSH-2RH-221480x2148077counterSH-IPLPage9PrinciplesofBoiler2020/5/5Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL3、影响锅妒布置的因◆蒸流压力的影响◆锅炉容量的影响◆燃料性质对锅妒布置的影响◆热空气温度对尾部受热布置影响1/5P910PrinciplesofBoiler2020/5/5Valadononry.chAs