【摘要】：我國在相當長的一段時間內(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。在直流鍋爐機組中根據(jù)成本、調(diào)峰要求以及使用壽命等方面考慮會選用不同的啟動系統(tǒng),本文針對直流鍋爐在啟動時可能遇到的一些問題及涉及到的系統(tǒng)組件性能等進行分析,對設計運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。對于啟動分離器組件進行數(shù)值模擬,確定不同布置參數(shù)對汽水分離效果的影響;介紹了啟動分離器中涉及的斜接管的強度校核計算方法。本文的研究為直流鍋爐啟動相關系統(tǒng)安全高效穩(wěn)定長期運行提供理論指導。
[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.
【學位授予單位】：上海交通大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM621

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本文編號：2322482