發(fā)布時間：2018-09-11 12:37

【摘要】：響應(yīng)國家政策要求,某660 MW燃煤發(fā)電機(jī)組通過在空氣預(yù)熱器和靜電除塵器之間加裝低低溫省煤器,改造脫硫吸收塔噴淋層和除霧器,增加1臺剛性極板濕式電除塵器,同時進(jìn)行引風(fēng)機(jī)、增壓風(fēng)機(jī)二合一改造,并采用高效低氮燃燒器以及分級省煤器技術(shù)完成了超低排放改造。通過建立"度電年均成本評估模型",并以實際運行成本數(shù)據(jù)為基礎(chǔ),對除塵、脫硫、脫硝等過程進(jìn)行逐項分析計算,獲得改造對供電成本的影響情況。研究表明:采用上述創(chuàng)新技術(shù)和設(shè)備進(jìn)行機(jī)組改造,顯著降低了主要煙氣污染物排放濃度;改造后供電成本增加0.008 47元/(k W·h)。該結(jié)果可為全國大范圍實施的燃煤發(fā)電機(jī)組超低排放改造提供參考。
[Abstract]:In response to the national policy, a 660MW coal-fired generating set installed a low-temperature economizer between the air preheater and the electrostatic precipitator to transform the spray layer and mist remover of the desulfurization and absorption tower and add a wet electrostatic precipitator with a rigid polar plate. At the same time, the transformation of inducer and booster fan was carried out, and the ultra-low emission was improved by using high efficiency low nitrogen burner and classifying economizer. Based on the actual operating cost data, this paper analyzes and calculates the process of dust removal, desulfurization and denitrification, and obtains the influence of the transformation on the power supply cost. The results show that the innovation technology and equipment can significantly reduce the emission concentration of main flue gas pollutants and increase the power supply cost by 0.008 RMB / (k W h). The results can be used as a reference for the retrofit of ultra-low emission of coal-fired generating units in China.
【作者單位】： 神華集團(tuán)有限責(zé)任公司;中國節(jié)能減排有限公司;神華國華電力研究中心;
【基金】：國家科技支撐計劃項目(2015BAA05B00)~~
【分類號】：F426.61;X773

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