【正文】 .........................................................................................5 熱水鍋爐舉例 .........................................................................................6 煙風(fēng)阻力計(jì)算的重要性 .........................................................................9 煙風(fēng)阻力計(jì)算設(shè)計(jì)優(yōu)化和改進(jìn) ...........................................................10 煙風(fēng)阻力計(jì)算步驟 .........................................................................................10 煙氣側(cè)阻力 計(jì)算 及引風(fēng)機(jī)的 選型 ......................................................10 空氣側(cè)阻力 計(jì)算 及鼓風(fēng)機(jī)的 選型 ....................................................... 11 第 2 章 煙氣側(cè)阻力計(jì)算 .....................................................................................12 爐膛出口負(fù)壓及八字煙道阻力 .....................................................................13 縱向、橫向相對(duì)截距 ...........................................................................13 斜向節(jié)距 ...............................................................................................13 單排管子阻力系數(shù) ξ10..........................................................................13 八字煙道阻力系數(shù) ...............................................................................14 煙氣動(dòng)壓頭 ...........................................................................................15 前煙道箱阻力 .................................................................................................16 局部阻力系數(shù)及有效截面積 ...............................................................16 前煙箱煙氣速度 ...................................................................................17 前煙箱局部阻 力 ...................................................................................17 螺紋煙管阻力 .................................................................................................18 動(dòng)壓頭 ...................................................................................................18 入口、出口阻力系數(shù) ...........................................................................18 螺紋煙管阻力 .......................................................................................18 后煙箱阻力 .....................................................................................................19 后煙箱出口阻力系數(shù)和后煙箱截面變化阻力系數(shù) ...........................19 動(dòng)壓頭 ...................................................................................................19 后煙箱與 省煤器之間的阻力 ...............................................................20 后煙箱與除塵器與煙囪之間的煙道阻力 .....................................................20 除塵器阻力 .....................................................................................................20 煙囪阻力 .........................................................................................................20 煙氣動(dòng)壓頭 ...........................................................................................20 沿程阻力系數(shù) .......................................................................................21 煙囪阻力 ...............................................................................................21 自生通風(fēng)力 .....................................................................................................21 煙氣側(cè)全壓降 .................................................................................................22 第 3 章 引風(fēng)機(jī) ........................................................................................................ 23 煙氣容量 .........................................................................................................23 引風(fēng)機(jī)應(yīng)有煙氣量 .........................................................................................23 引風(fēng)機(jī)應(yīng)有壓頭 .............................................................................................24 引風(fēng)機(jī)型號(hào) .....................................................................................................24 引風(fēng)機(jī)參數(shù) .....................................................................................................25 第 4 章 空氣側(cè)阻力計(jì)算 .....................................................................................26 吸風(fēng)管路阻力 .................................................................................................26 空氣速度 ...............................................................................................26 吸風(fēng)口阻力 ...........................................................................................26 沿程阻力 ...............................................................................................27 吸風(fēng)管路阻力 .......................................................................................27 調(diào)風(fēng)裝置阻力 .................................................................................................27 送風(fēng)道阻力 .....................................................................................................28 沿程阻力 ...............................................................................................28 三通分流阻力 .......................................................................................29 送風(fēng)道阻力 ...........................................................................................30 風(fēng)倉(cāng)室阻力 ...........................................................................................31 風(fēng)道總阻力 ...........................................................................................31 第 5 章 鼓風(fēng)機(jī) ........................................................................................................33 鼓風(fēng)機(jī)選擇 .....................................................................................................33 本章小結(jié) .........................................................................................................33 結(jié)論 .............................................................................................................................34 致謝 .....................................................................................