本文選題：富氧燃燒 + 動(dòng)力學(xué)計(jì)算　； 參考：《華北電力大學(xué)(北京)》2016年碩士論文

【摘要】：我國能源資源稟賦特點(diǎn)是“富煤、貧油、少氣”。煤炭在我國化石能源資源儲(chǔ)量中占比超過93%,是最可靠和最經(jīng)濟(jì)的能源資源,煤炭資源的高效清潔利用技術(shù)是關(guān)系到國家能源安全和發(fā)展。二氧化碳減排又是不可逾越的社會(huì)問題,CCS技術(shù)的發(fā)展與應(yīng)用將是控制溫室氣體排放、減緩氣候變化一條出路。本論文以神華200MW示范項(xiàng)目設(shè)計(jì)技術(shù)研究為基礎(chǔ),對(duì)大型富氧燃燒項(xiàng)目相關(guān)熱力計(jì)算進(jìn)行了詳細(xì)說明,富氧燃燒計(jì)算與空氣燃燒條件下煙風(fēng)煤粉系統(tǒng)的熱力計(jì)算方法、過程基本相同,但由于富氧燃燒形成的煙氣成分與空氣燃燒形成的煙氣成分顯著不同,因此在計(jì)算中對(duì)相關(guān)計(jì)算方法進(jìn)行了相應(yīng)的說明和修正。富氧燃燒方式下的助燃?xì)馐茄h(huán)煙氣和氧氣組成的混合氣體,在煙氣循環(huán)運(yùn)行時(shí)補(bǔ)充的是純度較高的氧氣。循環(huán)煙氣中氧濃度確定之后,計(jì)算得到煙氣的循環(huán)倍率,再通過熱平衡和煙氣成分循環(huán)迭代計(jì)算,得出系統(tǒng)熱力循環(huán)中各部位煙氣成分,計(jì)算出系統(tǒng)內(nèi)煙氣的氣體特性,為鍋爐及輔機(jī)設(shè)備設(shè)計(jì)提供基礎(chǔ)參數(shù)。針對(duì)煙氣成分特性,研究鍋爐本體及各輔機(jī)設(shè)備設(shè)計(jì)選型重點(diǎn)及要點(diǎn),明確各設(shè)備選擇的優(yōu)缺點(diǎn)和選擇條件,達(dá)到大型富氧燃燒鍋爐設(shè)備設(shè)計(jì)、選型初步設(shè)計(jì)深度內(nèi)容,為大型富氧電站建設(shè)深度設(shè)計(jì)提供數(shù)據(jù)技術(shù)支持。研究富氧電站建設(shè)設(shè)備監(jiān)理,結(jié)合業(yè)主管理和監(jiān)理職責(zé)闡述設(shè)備監(jiān)理工作有效運(yùn)作,文中將監(jiān)理管理、問題處理、檢查評(píng)價(jià)流程化、表單化,使監(jiān)理工作一目了然,提出一套適合富氧燃燒鍋爐的主要技術(shù)及設(shè)備設(shè)計(jì)特點(diǎn)和可操作的設(shè)備選型監(jiān)理辦法。
[Abstract]:China's energy resource endowment is characterized by "rich coal, lean oil, less gas." Coal accounts for more than 933 percent of fossil energy reserves in China, which is the most reliable and economical energy resource. The efficient and clean utilization technology of coal resources is related to the national energy security and development. Carbon dioxide emission reduction is an insurmountable social problem. The development and application of CCS technology will be a way to control greenhouse gas emissions and mitigate climate change. Based on the research on the design technology of Shenhua 200MW demonstration project, this paper describes in detail the thermodynamic calculation of large oxygen-enriched combustion projects and the thermodynamic calculation method of soot pulverized coal system under the condition of oxygen-enriched combustion and air combustion. The process is basically the same but the composition of flue gas formed by oxygen-enriched combustion is significantly different from that formed by air combustion so the relevant calculation methods are explained and revised accordingly in the calculation. Under the oxygen-enriched combustion mode, the auxiliary gas is a mixture of circulating flue gas and oxygen, and the high purity oxygen is added to the flue gas in circulation operation. After the determination of oxygen concentration in the circulating flue gas, the circulation rate of the flue gas is calculated, and then through the heat balance and the iterative calculation of the flue gas composition, the components of the flue gas in the thermal cycle of the system are obtained, and the gas characteristics of the flue gas in the system are calculated. Provide basic parameters for boiler and auxiliary equipment design. According to the characteristics of flue gas composition, this paper studies the emphases and essentials of the design and selection of boiler body and auxiliary equipment, clarifies the advantages, disadvantages and conditions of each equipment selection, and achieves the design of large oxygen-enriched combustion boiler equipment and the preliminary design depth of type selection. Provide the data technical support for the construction depth design of the large oxygen-enriched power station. This paper studies the construction equipment supervision of the oxygen-enriched power station, and expounds the effective operation of the equipment supervision work in combination with the owner's management and supervision duties. In this paper, the supervision management, the problem handling, the inspection and evaluation process, the formalization, the supervision work can be made clear at a glance. This paper puts forward a set of main technology and equipment design features for oxygen-enriched combustion boiler and an operable supervision method for equipment selection.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TK229

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本文編號(hào)：1843679