工程概況
風灘水(shui)電站(zhan)工(gong)程位于(yu)四川省平(ping)昌(chang)縣巴河大(da)風灘處,距平(ping)昌(chang)縣城11km,與雙灘水(shui)電站(zhan)構(gou)成巴河流域梯級電站(zhan)。電站(zhan)于(yu)70年代末建(jian)(jian)成,為漿(jiang)砌石溢流壩(ba),壩(ba)高17.56m,裝(zhuang)機容量為2×3.2MW。本次擴(kuo)(kuo)建(jian)(jian)工(gong)程在(zai)原電站(zhan)大(da)壩(ba)基(ji)礎(chu)上加壩(ba)4m,在(zai)原廠(chang)房(fang)左(zuo)側新建(jian)(jian)廠(chang)房(fang),新增裝(zhuang)機2×9.0MW,擴(kuo)(kuo)建(jian)(jian)后電站(zhan)總裝(zhuang)機24.4MW。
建設過程
鳳灘電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)擴(kuo)建(jian)(jian)和技(ji)(ji)(ji)改(gai)工(gong)程(cheng)(cheng):鳳灘水(shui)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)位于雙灘電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)下游(you)28km的(de)巴河干(gan)流上,電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)為70年代末(mo)建(jian)(jian)成的(de)一座小(xiao)型水(shui)電(dian)(dian)(dian)(dian)(dian)工(gong)程(cheng)(cheng),電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)規劃裝(zhuang)機(ji)4臺,實際裝(zhuang)機(ji)2臺,裝(zhuang)機(ji)容量6.4MW,年發(fa)電(dian)(dian)(dian)(dian)(dian)量4200多(duo)萬kwh。隨著(zhu)上游(you)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)的(de)開工(gong)建(jian)(jian)設,為充分利(li)用(yong)上游(you)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)水(shui)庫庫容的(de)調節(jie)作用(yong),采取(qu)對(dui)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)進行擴(kuo)建(jian)(jian)和機(ji)組改(gai)造。風灘電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)擴(kuo)建(jian)(jian)工(gong)程(cheng)(cheng)為在原(yuan)電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)大壩基礎上加壩4m,電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)正常(chang)蓄(xu)水(shui)位288.2m,新增電(dian)(dian)(dian)(dian)(dian)力裝(zhuang)機(ji)18MW,年發(fa)電(dian)(dian)(dian)(dian)(dian)量8500多(duo)萬kwh,電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)擴(kuo)建(jian)(jian)概算(suan)總投(tou)(tou)資1.637億元(yuan),實際完成各項(xiang)投(tou)(tou)資近2億元(yuan)。風灘電(dian)(dian)(dian)(dian)(dian)站(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)技(ji)(ji)(ji)改(gai)工(gong)程(cheng)(cheng)為在現有(you)水(shui)工(gong)建(jian)(jian)筑不變基礎上將現2×3.2MW機(ji)組技(ji)(ji)(ji)術改(gai)造為2×5MW,技(ji)(ji)(ji)改(gai)概算(suan)總投(tou)(tou)資為2700多(duo)萬元(yuan)。