【正文】 at rate, generation standard coal consumption rate. Maximum continuous boiler parts, including evaporation, boiler determining the form of end hosts on the basis of further development of the main auxiliary systems and identifies the major form. Which developed the system, including the formulation of the main steam piping system, reheat unit bypass system in the formulation, development of water supply piping system, heat recovery heater piping system formulation, the formulation of oxygen pipeline system to supplement the proposed water pipeline system sewage and sewage expansion devices proposed pipeline system cooler, seal piping systems in the formulation, the formulation of the milling system, etc. Have identified the main auxiliary mill, coal feeder, blower, induced draft fan, to the powder, coarse separator, feed water pump and so design only in the selection criteria in accordance with the safe and economic optimization does not take into account other factors. Keywords: steam turbine, boiler, heating system, auxiliary for III 目錄 中文摘要 ………………………………………………………………… ..……………… ..…… I ABSTRACT……………………………………… ..…………………………………………… 錯(cuò)誤 !未定義書(shū)簽。確定的主要輔機(jī)有磨煤機(jī)、給煤機(jī)、送風(fēng)機(jī)、引風(fēng)機(jī)、給粉機(jī)、粗粉分離器、給水泵等。在確定完主機(jī)形式的基礎(chǔ)上進(jìn)一步擬定了主要系統(tǒng)并確定了主要輔機(jī)的形式。其中汽輪機(jī)部分包括進(jìn)汽壓力、溫度，汽耗量，機(jī)組熱耗量，全廠熱效率，全廠熱耗率，發(fā)電標(biāo)準(zhǔn)煤耗率。 I 300MW 機(jī)組機(jī)務(wù)部分初步設(shè)計(jì)論文 摘 要 本次設(shè)計(jì)為 300MW 機(jī)組熱力部分局部初步設(shè)計(jì)，本次設(shè)計(jì)在進(jìn)行設(shè)計(jì)選型時(shí)僅依照安全經(jīng)濟(jì)的標(biāo)準(zhǔn)進(jìn)行優(yōu)化沒(méi)有考慮其他影響因素，充分借鑒鐵嶺發(fā)電廠備選型及其方案。經(jīng)過(guò)設(shè)計(jì)最終確定了汽輪機(jī)以及鍋爐的形式。鍋爐部分包括最大連續(xù)蒸發(fā)量，鍋爐效率。其中系統(tǒng)的擬定包括主蒸汽管道系統(tǒng)的擬定，再熱機(jī)組旁路系統(tǒng)的擬定 ，給水管道系統(tǒng)的擬定，回?zé)峒訜崞鞴艿老到y(tǒng)的擬定，除氧器管道系統(tǒng)的擬定，補(bǔ)充水管道系統(tǒng)的擬定，排污擴(kuò)容器及排污冷卻器管道系統(tǒng)的擬定，軸封管道系統(tǒng)的擬定，制粉系統(tǒng)的擬定等。本文設(shè)計(jì)在選型時(shí)僅依照安全經(jīng)濟(jì)的標(biāo)準(zhǔn)進(jìn)行優(yōu)化沒(méi)有考慮其他影響因素。 目錄 ................................................................................................................................Ⅲ 第一章 發(fā)電廠主要設(shè)備的確定 ……………………………………………… ...……………… 2 汽輪機(jī)型式、參數(shù)、容量的確定 ..........................................................................................2 鍋爐型式容量的確定 ..............................................................................................................2 第二章 鍋爐燃燒系統(tǒng)及其設(shè)備的選擇 … ..........................................................................3 燃燒系統(tǒng)的計(jì)算 … ..................................................................................................................5 制粉系統(tǒng)的確定 … ..................................................................................................................7 磨煤機(jī)的選擇 … ......................................................................................................................9 給煤機(jī)的選擇 … ....................................................................................................................10 送風(fēng)機(jī)、一次風(fēng)機(jī)的選擇 … ................................................................................................12 引風(fēng)機(jī)的選擇 … ....................................................................................................................13 除塵設(shè)備的選擇 … ................................................................................................................13 第三章 原則性熱力系統(tǒng)的擬定、計(jì)算 … .........................................................................14 補(bǔ)充水系統(tǒng)的擬定 … ............................................................................................................15 鍋爐連續(xù)排污利用系統(tǒng)的擬定 … ........................................................................................15 繪制原則性熱力系統(tǒng)圖 … ....................................................................................................16 繪制汽機(jī)熱力過(guò)程線及汽水綜合參數(shù)表 … ........................................................................16 鍋爐連續(xù)排污利用系統(tǒng)的計(jì)算 … ........................................................................................18 回?zé)嵯到y(tǒng)計(jì)算 … ....................................................................................................................18 汽輪機(jī)總汽耗量及各項(xiàng)汽水流量計(jì)算 … ............................................................................24 熱經(jīng)濟(jì)指標(biāo)計(jì)算 … ................................................................................................................28 第四章 汽機(jī)車(chē)間主要設(shè)備的確定 … ................................................................................32 高低壓加熱器的選擇 … ........................................................................................................33 IV 凝汽器與軸封加熱器的選擇 … ............................................................................................34 給水泵的選擇 … ....................................................................................................................35 凝結(jié)水泵的選擇 … ................................................................................................................37 除氧器及給水箱的選擇 … ....................................................................................................38 低壓加熱器的疏水泵的選擇 … .............................................................................................38 連續(xù)排污擴(kuò)容器的選擇 … ....................................................................................................39 定期排污擴(kuò)容器的選擇 … ....................................................................................................40 疏水?dāng)U容器的選擇 … ............................................................................................................40 疏水箱及疏水泵的選擇 … ..................................................................................................41 供水方式的確定和循環(huán)水泵的選擇 … ..............................................................................41 工業(yè)水泵、生水泵的選擇 … ..............................................................................................44 第五章 全面性熱力系統(tǒng)的擬定 … ...................................................................................46 鍋爐煙風(fēng)制粉系統(tǒng)的擬定 … ................................................................................................46 主蒸汽管道系統(tǒng)的擬定 … ...........................................................................