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11月(yue)27日，國電(dian)電(dian)力廊坊(fang)熱(re)電(dian)二期項目4號機組應用的世界首個耦合煙(yan)氣熔(rong)鹽儲(chu)熱(re)鍋爐首根(gen)鋼架吊裝(zhuang)就位(wei)，標志著“350兆瓦高效靈活燃煤(mei)發(fa)電(dian)機組關鍵技術研發(fa)與示范工程項目”工程建(jian)設(she)進入安(an)裝(zhuang)施工階段。

圖為鍋爐首根(gen)鋼架吊裝現場

廊坊二(er)期項(xiang)目位于河北省廊坊市(shi)廣陽區，規劃建(jian)設2臺350兆(zhao)瓦超臨界熱電(dian)聯產機(ji)組，同步建(jian)設除塵及煙氣脫硫、脫硝等高效環保設施。投產后，供熱面積可(ke)達(da)2100萬平米，工(gong)業蒸汽供應能力每小時達(da)100噸，實現熱、電(dian)、冷、汽、熱水等多種(zhong)能源供應。

“350兆(zhao)瓦高效靈活燃(ran)(ran)煤發電(dian)機(ji)(ji)組(zu)關鍵技(ji)術(shu)研發與(yu)示(shi)范工(gong)(gong)(gong)程項(xiang)目”在二期項(xiang)目4號(hao)機(ji)(ji)組(zu)同(tong)步實施(shi)，該(gai)項(xiang)目是(shi)第(di)三(san)批能源領域(yu)(yu)首(shou)臺（套）重(zhong)大技(ji)術(shu)裝備項(xiang)目，是(shi)國家能源領域(yu)(yu)改(gai)革（尤其是(shi)燃(ran)(ran)煤火電(dian)機(ji)(ji)組(zu)改(gai)革）的(de)(de)試(shi)點和(he)示(shi)范工(gong)(gong)(gong)程。采用國內首(shou)臺350兆(zhao)瓦超(chao)(chao)臨界(jie)(jie)塔式(shi)爐，配置世界(jie)(jie)首(shou)例煙(yan)(yan)氣(qi)熔(rong)鹽(yan)(yan)(yan)儲熱(re)(re)系(xi)統，相(xiang)比傳統蒸汽加熱(re)(re)熔(rong)鹽(yan)(yan)(yan)儲熱(re)(re)，煙(yan)(yan)氣(qi)加熱(re)(re)熔(rong)鹽(yan)(yan)(yan)儲熱(re)(re)技(ji)術(shu)可(ke)將儲能效率由35%提(ti)升(sheng)到(dao)63%，大幅提(ti)升(sheng)熔(rong)鹽(yan)(yan)(yan)系(xi)統經濟性(xing)。應用世界(jie)(jie)首(shou)個耦合煙(yan)(yan)氣(qi)熔(rong)鹽(yan)(yan)(yan)儲熱(re)(re)鍋(guo)爐，鍋(guo)爐采用新型(xing)超(chao)(chao)低穩燃(ran)(ran)燃(ran)(ran)燒(shao)器和(he)“大小(xiao)磨”組(zu)合制粉系(xi)統，應用爐水循環泵、分級省煤器、煙(yan)(yan)氣(qi)再循環等多重(zhong)技(ji)術(shu)措施(shi)。項(xiang)目完(wan)成(cheng)后，可(ke)實現機(ji)(ji)組(zu)最小(xiao)穩定(ding)運行發電(dian)負荷(he)為(wei)額定(ding)工(gong)(gong)(gong)況(kuang)的(de)(de)15%、變負荷(he)速(su)率每分鐘(zhong)可(ke)達額定(ding)工(gong)(gong)(gong)況(kuang)的(de)(de)6%、熱(re)(re)態啟動時間小(xiao)于(yu)2小(xiao)時、30%額定(ding)負荷(he)工(gong)(gong)(gong)況(kuang)時供電(dian)煤耗增加不大于(yu)15%、全工(gong)(gong)(gong)況(kuang)超(chao)(chao)凈排放五大先進指標。

來源：國電(dian)(dian)電(dian)(dian)力

作者：馬(ma)云騰