6月30日,河北公司龍(long)山(shan)電廠抽汽蓄能熔鹽儲熱調峰靈活(huo)性改造示范項目正式開工建設。
該(gai)項目(mu)是國內首個利用熔(rong)(rong)鹽(yan)(yan)(yan)大(da)規模儲(chu)(chu)熱(re)(re)實(shi)現(xian)機組深度調(diao)峰及頂峰的重大(da)科(ke)技(ji)創新(xin)(xin)示范項目(mu),今年3月被列入國家“煤炭清潔高(gao)效(xiao)(xiao)利用”科(ke)研攻關依托項目(mu)。項目(mu)采(cai)用“高(gao)溫(wen)熔(rong)(rong)鹽(yan)(yan)(yan)儲(chu)(chu)能”技(ji)術,利用現(xian)有(you)機組,新(xin)(xin)增一套含低(di)溫(wen)熔(rong)(rong)鹽(yan)(yan)(yan)罐、換熱(re)(re)平臺、高(gao)溫(wen)熔(rong)(rong)鹽(yan)(yan)(yan)罐等建(jian)構筑物在(zai)內的抽汽熔(rong)(rong)鹽(yan)(yan)(yan)儲(chu)(chu)熱(re)(re)系(xi)統(tong)(tong),當電(dian)網需要深度調(diao)峰時(shi),可(ke)(ke)將鍋爐富余(yu)的蒸(zheng)汽熱(re)(re)量存儲(chu)(chu)到儲(chu)(chu)熱(re)(re)系(xi)統(tong)(tong)內,實(shi)現(xian)鍋爐和(he)發(fa)電(dian)機組的解耦,使機組滿足(zu)電(dian)網調(diao)峰需要;當電(dian)網需要頂高(gao)峰負荷時(shi),可(ke)(ke)將調(diao)峰期間存儲(chu)(chu)在(zai)儲(chu)(chu)熱(re)(re)系(xi)統(tong)(tong)的熱(re)(re)量重新(xin)(xin)釋(shi)放出來,增加發(fa)電(dian)機組的頂尖(jian)峰能力。項目(mu)建(jian)成后,不僅可(ke)(ke)以有(you)效(xiao)(xiao)促(cu)進河北省(sheng)新(xin)(xin)能源發(fa)展和(he)能源結構轉型,還將為(wei)全國現(xian)存煤電(dian)機組大(da)幅(fu)提(ti)高(gao)調(diao)峰能力提(ti)供技(ji)術借鑒。
據此前報道,項目總投資3.2億(yi)元(yuan),占地面積約6300平(ping)方米(mi),通過(guo)能量的(de)存儲和(he)轉換,改變運行(xing)機組(zu)在峰、平(ping)、谷時段的(de)負荷結構(gou),增加火電(dian)機組(zu)的(de)調(diao)峰靈活(huo)性。項目實施(shi)后可大幅提升機組(zu)深度調(diao)峰及頂峰能力,提高電(dian)網新(xin)能源消納比例(li),具有重大示范(fan)意義。