【正文】 ................................................ 13 空氣預(yù)熱器的選取 .......................................................................... 13 西昌地區(qū)的煤種情況 ...................................................................... 13 本章小結(jié) ................................................................................................. 14 第 3 章 熱力計(jì)算 .............................................................................................. 15 鍋爐規(guī)范、輔助計(jì)算及熱平衡計(jì)算 ..................................................... 15 基本參數(shù) .......................................................................................... 15 煤種及燃料特性 .............................................................................. 15 輔助計(jì)算 .......................................................................................... 15 各受熱面的設(shè)計(jì)及其熱力計(jì)算 ............................................................. 24 密相區(qū)埋管的設(shè)計(jì)及其傳熱計(jì)算 .................................................. 24 稀相區(qū)水冷壁的設(shè)計(jì)及其傳熱計(jì)算 .............................................. 27 過(guò)熱器的結(jié)構(gòu)設(shè)計(jì)及其傳熱計(jì)算 .................................................. 30 鍋爐吸熱量的受熱面分配 .............................................................. 37 省煤器和空氣預(yù)熱器的結(jié)構(gòu)設(shè)計(jì)及其傳熱計(jì)算 .......................... 38 熱力計(jì)算結(jié)果匯總 ................................................................................. 48 本章小結(jié) ................................................................................................. 49 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 V 第 4 章 循環(huán)流化床鍋爐主要部件的設(shè)計(jì)及計(jì)算 .......................................... 50 高溫絕熱旋風(fēng)分離器的設(shè)計(jì)計(jì)算 ......................................................... 50 分離器基本參數(shù)與尺寸的確定 ...................................................... 50 分離器的離心沉降速度的校驗(yàn) ...................................................... 51 分離器的理論切割直徑 .................................................................. 51 分離器中的煙氣阻力計(jì)算 .............................................................. 51 U型返料器的設(shè)計(jì)與計(jì)算 ...................................................................... 51 返料器尺寸的確定 .......................................................................... 52 U型返料器送風(fēng)量的計(jì)算 ............................................................... 52 布風(fēng)板的設(shè)計(jì) ......................................................................................... 53 花板的設(shè)計(jì) ...................................................................................... 53 風(fēng)帽 .................................................................................................. 54 耐火保護(hù)層 ...................................................................................... 55 爐膛開(kāi)口 ................................................................................................. 55 給料口 .............................................................................................. 55 床層底部的排渣口 .......................................................................... 55 循環(huán)物料進(jìn)口 .................................................................................. 55 二次風(fēng)入口的設(shè)計(jì) .......................................................................... 55 本章小結(jié) ................................................................................................. 55 第 5 章 強(qiáng)度計(jì)算 .............................................................................................. 57 鍋筒強(qiáng)度校核計(jì)算 ................................................................................. 57 鍋筒筒體強(qiáng)度校核計(jì)算 .................................................................. 60 孔的加強(qiáng)計(jì)算 .................................................................................. 60 下降管聯(lián)箱的強(qiáng)度設(shè)計(jì)計(jì)算 ................................................................. 65 本章小結(jié) ................................................................................................. 68 第 6 章 煙風(fēng)阻力計(jì)算 ...................................................................................... 69 煙氣側(cè)流阻計(jì)算 ..................................................................................... 69 空氣預(yù)熱器空氣側(cè)流阻計(jì)算 ................................................................. 75 布風(fēng)裝置的空氣側(cè)阻力計(jì)算 ................................................................. 76 引、送風(fēng)機(jī)的選取 ................................................................................. 76 本章小結(jié) ................................................................................................. 77 結(jié) 論 .............................................................................................................. 78 致 謝 .............................................................................................................. 79 參考文獻(xiàn) ............................................................................................................ 80 附錄 A 英文資料（ 原文 ） ............................................................................ 82 附錄Ｂ 英文資料（譯文） .......................................................................... 101 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 6 第 1章 緒 論 循環(huán)流化床鍋爐的 發(fā)展 歷程與應(yīng)用 循環(huán)流化床 鍋爐 燃燒技術(shù) 的發(fā)展始于 上個(gè)世紀(jì) 70 年代 ，是 一種 新型的 清潔煤燃燒技術(shù)。s when the first 20t/hcirculation fluid bed boiler has been published,the circulation fluid bed burning technology obtained many nationals’ values, and obtained the rapid development at the same time. Our country opens the beginning of developping the circulation fluid bed boiler technology from on century 8039。本畢業(yè)設(shè)計(jì)論文包括設(shè)計(jì)說(shuō)明書(shū)一份、鍋爐系統(tǒng)總圖一張、鍋爐水管系統(tǒng)圖一張、鍋筒圖一張。另外本設(shè)計(jì)進(jìn)行了爐膛設(shè)計(jì)計(jì)算、鍋爐各對(duì)流受熱面的設(shè)計(jì)計(jì)算、氣包與集箱的強(qiáng)度校核計(jì)算、煙風(fēng)阻力計(jì)算。 我國(guó)自上世紀(jì)八十年代 起開(kāi)始發(fā)展循環(huán)流化床鍋爐技術(shù)，并同時(shí) 采取引進(jìn)和自我開(kāi)發(fā)兩條路線， 目前已經(jīng) 完全掌握了中小型循環(huán)流化床鍋爐設(shè)計(jì)制造技術(shù) 。由于 它 具有高效 ，低污染且煤種適應(yīng)性強(qiáng)這三大特點(diǎn)，自從 70 年代末第一臺(tái) 20t/h 循環(huán)流化床鍋爐問(wèn)世以來(lái)，循環(huán)流化床燃燒技術(shù)得到了許多國(guó)家的重視，并與此同時(shí)得到了迅速的發(fā)展 。尾部豎井煙道依次 布置兩級(jí)過(guò)熱器，交錯(cuò)布置兩級(jí)省煤器和兩級(jí)空氣預(yù)熱器。從計(jì)算結(jié)果知，該鍋爐設(shè)計(jì)合理，效率較高，可供工程實(shí)際設(shè)計(jì)參考，若能工程實(shí)施，將能帶來(lái)較好的社會(huì)效益與經(jīng)濟(jì)效益。s in the last century. Because its highly effective, the low pollution and strong patible for many coal plants. It is at the end of the 7039。 design of boiler。至今已經(jīng)形成幾個(gè)技術(shù)流派：以魯奇公司為代表(包括 Stain 公