本文關(guān)鍵詞： 高效超超臨界 火電廠熱力系統(tǒng) (?)分析 泛(?)分析　出處：《中南大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：摘要：穩(wěn)定、可靠的能源供應(yīng)是經(jīng)濟發(fā)展的重要基礎(chǔ)。然而,日益嚴峻的能源形勢、不斷惡化的環(huán)境問題時刻在警示著我們,有效的利用與節(jié)約能源、減少對生態(tài)環(huán)境的破壞與污染,才是實現(xiàn)我國經(jīng)濟可持續(xù)發(fā)展的根本途徑。 長期以來,受能源供應(yīng)結(jié)構(gòu)的影響,我國的火力發(fā)電都以燃煤機組為主。經(jīng)過數(shù)十年的發(fā)展,1000MW超超臨界發(fā)電技術(shù)已經(jīng)成為當(dāng)今世界范圍內(nèi)的主流發(fā)電技術(shù),其技術(shù)的可靠性以及對發(fā)電機組熱效率的提升得到廣泛認可。然而,針對該技術(shù)的炯分析以及考慮經(jīng)濟、環(huán)境因素等因素的綜合評價分析還比較少。 本文選取國內(nèi)最新研發(fā)的高效1000MW超超臨界發(fā)電機組為主要研究對象,以(?)分析、泛(?)分析方法為基礎(chǔ),建立了機組的熱力系統(tǒng)分析模型,對高效1000MW超超臨界燃煤發(fā)電機組以及其它不同容量、類型典型機組的熱力系統(tǒng)進行了綜合評價分析。 分析得到了高效1000MW超超臨界燃煤發(fā)電機組熱力系統(tǒng)的(?)效率與泛(?)利用系數(shù),以及熱力系統(tǒng)內(nèi)部的損失分布占比情況,并分析了產(chǎn)生各種損失的原因,為機組熱力系統(tǒng)的優(yōu)化提供了依據(jù)。同時,通過與300MW亞臨界機組、600MW超臨界機組、常規(guī)參數(shù)1000MW超超臨界機組分析結(jié)果的對比,得出高效1000MW超超臨界機組的(?)效率、泛(?)利用系數(shù)與可持續(xù)發(fā)展指數(shù)均優(yōu)于其他機組,說明該機組對能量、投資等資源都有較好的利用,對生態(tài)環(huán)境的影響也相對較小,全面體現(xiàn)了高效1000MW超超臨界機組的優(yōu)越性。
[Abstract]:Absrtact: stable and reliable energy supply is the important foundation of economic development. However, the increasingly severe energy situation and worsening environmental problems are warning us to effectively utilize and save energy. Reducing the damage and pollution to the ecological environment is the fundamental way to realize the sustainable development of our economy. For a long time, under the influence of energy supply structure, coal-fired units are the main power generation units in China. After decades of development. 1000MW ultra-supercritical power generation technology has become the mainstream power generation technology in the world today. The reliability of the technology and the thermal efficiency of generating units have been widely recognized. The analysis of the technology and the comprehensive evaluation of the factors such as economy and environment are few. In this paper, the newly developed high-efficiency 1000MW ultra-supercritical generator set is selected as the main research object. (analysis, panorama? Based on the analysis method, the thermal system analysis model of the unit is established, which can be used for high-efficiency 1000MW ultra-supercritical coal-fired generating units and other different capacities. The comprehensive evaluation and analysis of the thermal system of typical units are carried out. The thermal system of high efficiency 1000MW ultra-supercritical coal-fired generating set is analyzed. ) efficiency and panorama? The utilization coefficient and the internal loss distribution of the thermal system are analyzed, and the causes of the losses are analyzed, which provides the basis for the optimization of the thermal system of the unit. By comparing the analysis results of 1000MW ultra-supercritical units with 300MW subcritical units and 600MW supercritical units with conventional parameters, it is concluded that the high efficiency 1000MW ultra-supercritical units can be obtained. Efficiency. The utilization coefficient and sustainable development index are better than other units, indicating that the unit has better utilization of energy, investment and other resources, and the impact on ecological environment is relatively small. The superiority of high efficiency 1000 MW ultra supercritical unit is fully embodied.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM621

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