600MW火電機(jī)組回?zé)嵯到y(tǒng)分析模型研究

論文編號:ZD1159    論文字?jǐn)?shù):18405,頁數(shù):37 附任務(wù)書，開題報(bào)告，文獻(xiàn)綜述，外文翻譯

600MW火電機(jī)組回?zé)嵯到y(tǒng)分析模型研究
摘要
 我國是一個(gè)能源豐富但是節(jié)能水平還迫切需要提高的國家，發(fā)電企業(yè)是我國能源消耗的大戶，他們節(jié)能水平的高低直接影響著全國的能源形勢，關(guān)系著全國的環(huán)境質(zhì)量，也是我國發(fā)電企業(yè)進(jìn)行可持續(xù)發(fā)展的重要環(huán)節(jié)。隨著時(shí)代的發(fā)展，火力發(fā)電機(jī)組采用大容量和超臨界技術(shù)是提高發(fā)電機(jī)組熱經(jīng)濟(jì)性的有效途徑。我國也將超臨界機(jī)組作為今后一個(gè)時(shí)期火電機(jī)組建設(shè)的重點(diǎn)之一，而600MW火電機(jī)組又是超臨界火電機(jī)組中的主力機(jī)組。針對600MW火電機(jī)組中重要組成部分——回?zé)嵯到y(tǒng)，進(jìn)行分析對于提高熱效率節(jié)約能源和系統(tǒng)的穩(wěn)定工作都起到了重要作用。本文介紹了600MW火電機(jī)組的特點(diǎn)及主要生產(chǎn)過程。對于整個(gè)火電機(jī)組熱力系統(tǒng)作了較為詳盡的描述并且重點(diǎn)介紹了回?zé)嵯到y(tǒng)。對于火電廠熱經(jīng)濟(jì)性指標(biāo)分析的幾種方法作了詳細(xì)的介紹，并建立了回?zé)嵯到y(tǒng)熱經(jīng)濟(jì)性計(jì)算模型和小指標(biāo)分析模型。最終通過實(shí)例證明了該模型準(zhǔn)確性。為火電機(jī)組回?zé)嵯到y(tǒng)熱效率提供了評價(jià)方法。

關(guān)鍵詞：600MW火電機(jī)組 熱經(jīng)濟(jì)性 回?zé)嵯到y(tǒng)分析模型

600MW Thermal Power Unit Heat recovery systems analysis model
Abstract
 China is an energy-rich but energy level is also an urgent need to improve the country. power generation business is the major energy consumption. The level of their energy level direct impact on the country's energy situation. Relations with the country's environmental quality,also generating enterprises for sustainable development an important link. With the development of the times， thermal power generation uses large capacity and supercritical technology, which is an effective way to improve the economic units. China also makes supercritical unit as one of the key points to the construction of thermal power units in a period of the future. 600 MW thermal power units is the main part of supercritical thermal power units,  for an important part of 600 MW thermal power units-- heat recovery system, the analysis of heat recovery system plays an important role of improving the thermal efficiency, saving energy and the stability of the system. This paper introduces the characteristic and main process of production for 600 MW thermal power units. The entire thermal system of thermal power units is described exhaustively and the paper focuses on the regenerative system. Several methods for the hot efficient target analysis of thermoelectric power station are described in detail. And the establishment of a heat recovery system of calculation model of economic indicators and analysis of small indicators. Finally, examples prove the veracity and reliability of heat recovery systems analysis model of thermal power units, which has already been established. Power Unit for the thermal system to provide thermal efficiency of the eva luation method.

Keywords: 600MW Thermal Power Unit ，Heat economy，Heat recovery systems analysis model

目錄
摘要 I
Abstract II
第一章 引言 1
1.1 中國能源現(xiàn)狀概述 1
1.2 火電機(jī)組的發(fā)展歷史、現(xiàn)況及發(fā)展方向 3
1.3 火電發(fā)電在我國電力行業(yè)中的地位 4
1.4 火電廠節(jié)能的意義 5
第二章  600MW火電機(jī)組熱力系統(tǒng)介紹 7
2.1 600MW火電機(jī)組概述 7
2.2 600MW火電機(jī)組的工作過程 7
2.3 600MW火電機(jī)組熱力設(shè)備介紹 7
2.3.10 給水泵汽輪機(jī)的熱力系統(tǒng) 10
2.4 600MW火電機(jī)組回?zé)嵯到y(tǒng)介紹 10
2.5 600MW火電機(jī)組回?zé)峒訜崞鞯姆诸惣疤攸c(diǎn) 11
第三章  600MW火電機(jī)組回?zé)嵯到y(tǒng)分析模型 13
3.1 熱力系統(tǒng)經(jīng)濟(jì)性分析方法 13
3.2 熱力系統(tǒng)汽水分布矩陣方程的確定 14
3.3 功率方程及吸熱量方程 18
3.4 水和水蒸汽熱物性參數(shù)計(jì)算模型 19
3.5 排汽焓計(jì)算 19
3.6 600MW火電機(jī)組耗差分析 20
第四章 小指標(biāo)分析 22
4.1 抽汽壓損 22
4.2 加熱器端差 22
4.3 各參數(shù)應(yīng)達(dá)值的確定 23
4.4 總能損確定 24
4.5 熱經(jīng)濟(jì)性計(jì)算示例 25
第四章  總結(jié) 30
參考文獻(xiàn) 31
致謝 33