【摘要】：我國(guó)在相當(dāng)長(zhǎng)的一段時(shí)間內(nèi)能源結(jié)構(gòu)仍將以煤炭為主,從提高煤炭的使用效益以及環(huán)保等多方面考慮,電站燃煤鍋爐趨向大容量高參數(shù)方向發(fā)展。在直流鍋爐機(jī)組中根據(jù)成本、調(diào)峰要求以及使用壽命等方面考慮會(huì)選用不同的啟動(dòng)系統(tǒng),本文針對(duì)直流鍋爐在啟動(dòng)時(shí)可能遇到的一些問題及涉及到的系統(tǒng)組件性能等進(jìn)行分析,對(duì)設(shè)計(jì)運(yùn)行中需要注意的問題做出歸納總結(jié),以期找到合理有效的解決方法。對(duì)于啟動(dòng)分離器組件進(jìn)行數(shù)值模擬,確定不同布置參數(shù)對(duì)汽水分離效果的影響;介紹了啟動(dòng)分離器中涉及的斜接管的強(qiáng)度校核計(jì)算方法。本文的研究為直流鍋爐啟動(dòng)相關(guān)系統(tǒng)安全高效穩(wěn)定長(zhǎng)期運(yùn)行提供理論指導(dǎo)。
[Abstract]:Coal will still be the main source of energy in China for a long time. Considering the improvement of coal utilization efficiency and environmental protection, coal-fired boilers in power plants tend to develop in the direction of large capacity and high parameters. According to the consideration of cost, peak-shaving requirement and service life, different starting systems will be selected in once-through boiler units. This paper analyzes some problems that may be encountered in the start-up of once-through boilers and the performance of system components involved. The problems needing attention in design operation are summarized in order to find a reasonable and effective solution. The effect of different layout parameters on the separation effect of steam water is determined by numerical simulation of the starting separator assembly, and the calculation method of the strength check of the oblique nozzle involved in the starting separator is introduced. The research in this paper provides theoretical guidance for the safety, efficiency and stability of once-through boiler startup system.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM621

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 鄭國(guó)寬;袁春江;文巖;;600MW級(jí)超臨界直流鍋爐啟動(dòng)過程中壓力與溫度控制探討[J];東北電力大學(xué)學(xué)報(bào);2011年02期

2 李娜;閻維平;;1000MW鍋爐汽水分離器的瞬態(tài)應(yīng)力有限元分析[J];鍋爐技術(shù);2013年01期

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本文編號(hào)：2322482