5月(yue)25日下(xia)午,北京工業大學傳(chuan)熱(re)與能源利用北京市重點(dian)實驗(yan)室主(zhu)任吳玉庭受邀在長(chang)時(shi)儲能技術及(ji)應(ying)用專場分享了主(zhu)題報(bao)告(gao),報(bao)告(gao)題目為《雙(shuang)碳目標下(xia)熔(rong)鹽長(chang)時(shi)儲能應(ying)用前景及(ji)研發進(jin)展》。以下(xia)是報(bao)告(gao)主(zhu)要(yao)內容:
吳玉庭:女士(shi)們、先生們,下午好(hao)!我(wo)講(jiang)的(de)題目(mu)是“雙碳目(mu)標下熔(rong)鹽長時儲(chu)能(neng)應用(yong)前景及研(yan)發進(jin)展”,我(wo)來自北京工業大學,大家(jia)都知道熔(rong)鹽是無(wu)機(ji)鹽及其混合物(wu)的(de)熔(rong)融體,它(ta)(ta)在常(chang)溫(wen)下是一(yi)(yi)種白色的(de)粉末,但是當它(ta)(ta)加(jia)熱(re)(re)到熔(rong)點以(yi)上,它(ta)(ta)就會變成(cheng)像(xiang)水一(yi)(yi)樣流(liu)動的(de)流(liu)體。單一(yi)(yi)無(wu)機(ji)鹽的(de)液(ye)體溫(wen)度(du)范(fan)(fan)圍非常(chang)窄,因此(ci)要(yao)作為(wei)傳(chuan)熱(re)(re)流(liu)體必須把(ba)兩種以(yi)上的(de)無(wu)機(ji)鹽按(an)照(zhao)一(yi)(yi)定比例混合在一(yi)(yi)起,可以(yi)形成(cheng)共晶混合物(wu),可以(yi)顯著降低熔(rong)點,提高溫(wen)度(du),進(jin)一(yi)(yi)步拓寬液(ye)體溫(wen)度(du)的(de)范(fan)(fan)圍。因此(ci)我(wo)們傳(chuan)熱(re)(re)蓄熱(re)(re)領域(yu)一(yi)(yi)般采用(yong)混合熔(rong)鹽。
因為我們(men)在傳熱蓄熱領域,隨著太陽能(neng)熱發電、高(gao)溫儲能(neng)以及(ji)高(gao)溫工業傳熱的(de)需求(qiu),特別需要幾百度的(de)高(gao)溫傳熱介(jie)質(zhi)(zhi),這種情(qing)況下,如果液(ye)體作為蓄熱的(de)介(jie)質(zhi)(zhi),我們(men)可(ke)選擇的(de)范(fan)圍比較窄(zhai),有水蒸(zheng)氣、導熱油、液(ye)體金屬、空(kong)氣和熔鹽等等。
總之,熔(rong)鹽(yan)在(zai)整(zheng)個(ge)傳(chuan)熱(re)(re)(re)(re)(re)蓄熱(re)(re)(re)(re)(re)的(de)溫(wen)(wen)度(du)范圍內(nei)都是液體(ti)(ti),因此(ci)它(ta)的(de)傳(chuan)熱(re)(re)(re)(re)(re)性能(neng)非常好,傳(chuan)熱(re)(re)(re)(re)(re)比(bi)較穩定,另外(wai)在(zai)一(yi)(yi)個(ge)大氣(qi)壓(ya)下可(ke)以有(you)(you)非常寬的(de)液體(ti)(ti)溫(wen)(wen)度(du)范圍,使(shi)用溫(wen)(wen)度(du)比(bi)較高(gao)(gao),價(jia)格(ge)也低(di)(di),安全可(ke)靠。因此(ci)熔(rong)鹽(yan)是一(yi)(yi)種(zhong)理想(xiang)的(de)高(gao)(gao)溫(wen)(wen)傳(chuan)熱(re)(re)(re)(re)(re)介質,同(tong)時(shi)也是一(yi)(yi)種(zhong)理想(xiang)的(de)高(gao)(gao)溫(wen)(wen)蓄熱(re)(re)(re)(re)(re)介質。我(wo)們(men)所有(you)(you)說的(de)熔(rong)鹽(yan)儲(chu)熱(re)(re)(re)(re)(re)是用它(ta)的(de)液體(ti)(ti)段進行儲(chu)熱(re)(re)(re)(re)(re),這(zhe)是有(you)(you)別于(yu)相變儲(chu)能(neng),我(wo)們(men)是顯熱(re)(re)(re)(re)(re)儲(chu)熱(re)(re)(re)(re)(re),用的(de)是液體(ti)(ti)段,一(yi)(yi)般是采用雙罐(guan)儲(chu)熱(re)(re)(re)(re)(re),一(yi)(yi)個(ge)低(di)(di)溫(wen)(wen)罐(guan),一(yi)(yi)個(ge)高(gao)(gao)溫(wen)(wen)罐(guan),在(zai)低(di)(di)溫(wen)(wen)罐(guan)的(de)熔(rong)鹽(yan)抽出來(lai),經(jing)過(guo)一(yi)(yi)個(ge)加熱(re)(re)(re)(re)(re)器,可(ke)以把(ba)它(ta)加熱(re)(re)(re)(re)(re)成高(gao)(gao)溫(wen)(wen),在(zai)高(gao)(gao)溫(wen)(wen)中儲(chu)存(cun)熱(re)(re)(re)(re)(re)能(neng),在(zai)我(wo)們(men)需(xu)要熱(re)(re)(re)(re)(re)能(neng)的(de)時(shi)候再從高(gao)(gao)溫(wen)(wen)罐(guan)抽出熔(rong)鹽(yan),經(jing)過(guo)一(yi)(yi)個(ge)熔(rong)鹽(yan)換熱(re)(re)(re)(re)(re)器加熱(re)(re)(re)(re)(re)流體(ti)(ti),從而產(chan)生熱(re)(re)(re)(re)(re)的(de)流體(ti)(ti)。換熱(re)(re)(re)(re)(re)以后的(de)低(di)(di)溫(wen)(wen)熔(rong)鹽(yan)換到低(di)(di)溫(wen)(wen)罐(guan),這(zhe)樣就完(wan)成了儲(chu)熱(re)(re)(re)(re)(re)和釋熱(re)(re)(re)(re)(re)的(de)過(guo)程。
熔鹽儲(chu)熱(re)(re)系統主要(yao)的(de)(de)優點就是(shi)(shi)儲(chu)能(neng)(neng)密度(du)高,質量儲(chu)能(neng)(neng)密度(du)是(shi)(shi)水(shui)(shui)的(de)(de)2-3倍,體(ti)積儲(chu)能(neng)(neng)密度(du)更(geng)大(da),另外它的(de)(de)儲(chu)能(neng)(neng)成本低,還有一個是(shi)(shi)最(zui)大(da)的(de)(de)好處就是(shi)(shi)儲(chu)熱(re)(re)的(de)(de)最(zui)高溫度(du)與取熱(re)(re)流(liu)體(ti)的(de)(de)出口溫度(du)比(bi)較接(jie)近(jin)。比(bi)如我(wo)們(men)熱(re)(re)鹽罐(guan)溫度(du)是(shi)(shi)565度(du),我(wo)們(men)要(yao)是(shi)(shi)產(chan)生水(shui)(shui)蒸氣的(de)(de)話,我(wo)們(men)可以產(chan)生550℃的(de)(de)水(shui)(shui)蒸氣,這是(shi)(shi)其他的(de)(de)像固體(ti)儲(chu)熱(re)(re)非(fei)(fei)常難以做(zuo)(zuo)到的(de)(de),對于雙管罐(guan)儲(chu)熱(re)(re)是(shi)(shi)非(fei)(fei)常容(rong)易做(zuo)(zuo)到的(de)(de),它儲(chu)熱(re)(re)的(de)(de)最(zui)高溫度(du)與取熱(re)(re)流(liu)體(ti)的(de)(de)最(zui)高問題比(bi)較接(jie)近(jin)。
另(ling)外一(yi)個(ge)(ge)優點是(shi)換熱(re)器和電加(jia)熱(re)器的(de)進出口溫(wen)度(du)在(zai)整個(ge)(ge)儲(chu)放熱(re)過(guo)程中能一(yi)直(zhi)保持恒定,比如(ru)說電加(jia)熱(re)器進口溫(wen)度(du)200度(du),從(cong)低(di)溫(wen)儲(chu)罐剛開始抽(chou)(chou)一(yi)直(zhi)到把低(di)溫(wen)罐的(de)鹽抽(chou)(chou)完,一(yi)直(zhi)能保持200℃的(de)電加(jia)熱(re)器進口溫(wen)度(du)。最后換熱(re)器也(ye)是(shi)一(yi)樣,高(gao)溫(wen)罐抽(chou)(chou)出的(de)鹽是(shi)565度(du),滿(man)罐子(zi)到抽(chou)(chou)完,一(yi)直(zhi)能保持565℃。而(er)且我們可以(yi)通過(guo)改變它的(de)流量,精準的(de)調控它的(de)儲(chu)熱(re)和釋熱(re)速率。
大家(jia)也都知道(dao),因為我(wo)們實現(xian)(xian)碳達峰和碳中和,必須要求(qiu)在2060年采用以可再生(sheng)能(neng)(neng)(neng)源為主,可再生(sheng)能(neng)(neng)(neng)源的(de)比例(li)將達到(dao)80%。因此,雖然(ran)現(xian)(xian)在抽水蓄能(neng)(neng)(neng)在整個儲(chu)能(neng)(neng)(neng)中占(zhan)比非常(chang)高,86%。但是(shi)(shi)由于資源條件的(de)限制,單靠抽水蓄能(neng)(neng)(neng)是(shi)(shi)沒(mei)有辦(ban)法滿足(zu)高比例(li)可再生(sheng)能(neng)(neng)(neng)源對(dui)儲(chu)能(neng)(neng)(neng)系統的(de)巨大需求(qiu),缺口是(shi)(shi)非常(chang)大的(de)。因此,迫切要求(qiu)發展儲(chu)存(cun)性能(neng)(neng)(neng)之外的(de)低成本(ben)、大容量的(de)新型儲(chu)能(neng)(neng)(neng)技術。
因為熔鹽(yan)(yan)最終(zhong)釋(shi)放是熱(re)(re)量,實際上在(zai)整個人類社會的(de)能(neng)耗中,熱(re)(re)能(neng)是占主要(yao)地位的(de)。咱們覺得電(dian)(dian)是非常厲害(hai)的(de),但是電(dian)(dian)能(neng)只占17%,實際上人們大量需(xu)要(yao)的(de)是熱(re)(re)能(neng),51%。因此(ci),熱(re)(re)能(neng)需(xu)求(qiu)市場常大。而且,熔鹽(yan)(yan)儲(chu)熱(re)(re)不僅可以(yi)(yi)滿足熱(re)(re)能(neng)的(de)需(xu)求(qiu),它還(huan)可以(yi)(yi)用(yong)于發電(dian)(dian)。熔鹽(yan)(yan)儲(chu)熱(re)(re)可以(yi)(yi)在(zai)供電(dian)(dian)側(ce)、電(dian)(dian)網(wang)側(ce)和用(yong)戶側(ce)都可以(yi)(yi)發揮作用(yong)。
下(xia)面介紹一下(xia)熔鹽(yan)傳熱(re)的(de)(de)應用場(chang)景,第(di)一個大家都(dou)知道的(de)(de)太(tai)(tai)(tai)陽(yang)能(neng)光(guang)熱(re)發(fa)(fa)(fa)電(dian),因(yin)為大家都(dou)知道光(guang)伏和風(feng)力發(fa)(fa)(fa)電(dian)它(ta)最大的(de)(de)問題是間(jian)歇性(xing)。目前來說大規模的(de)(de)儲能(neng)還是有難(nan)度,但是對(dui)于(yu)太(tai)(tai)(tai)陽(yang)能(neng)熱(re)發(fa)(fa)(fa)電(dian)它(ta)跟低成本的(de)(de)、長壽命的(de)(de)熔鹽(yan)傳熱(re)相結合(he),因(yin)此它(ta)發(fa)(fa)(fa)的(de)(de)電(dian)是連續穩定(ding)可以(yi)調節的(de)(de),這是太(tai)(tai)(tai)陽(yang)能(neng)光(guang)熱(re)發(fa)(fa)(fa)電(dian)和其他(ta)的(de)(de)光(guang)伏風(feng)力發(fa)(fa)(fa)電(dian)最大的(de)(de)優勢(shi)。
另外(wai)(wai)光的(de)(de)(de)發電(dian)(dian)(dian),如果(guo)作為一(yi)個(ge)儲(chu)能(neng)電(dian)(dian)(dian)站,調節(jie)型(xing)的(de)(de)(de)電(dian)(dian)(dian)站,調峰電(dian)(dian)(dian)站它(ta)(ta)(ta)跟(gen)燃煤發電(dian)(dian)(dian)相比(bi)(bi)的(de)(de)(de)話(hua),它(ta)(ta)(ta)具(ju)有負荷調節(jie)范圍大、它(ta)(ta)(ta)可(ke)以從(cong)20%調到100%,具(ju)有升溫速度快、氣輪機的(de)(de)(de)啟動速度快等一(yi)系列的(de)(de)(de)優點。另外(wai)(wai)跟(gen)光伏(fu)(fu)發電(dian)(dian)(dian)相比(bi)(bi),如果(guo)光伏(fu)(fu)發電(dian)(dian)(dian)要是(shi)(shi)(shi)配上(shang)同樣跟(gen)太陽(yang)能(neng)熱發電(dian)(dian)(dian)同樣能(neng)力的(de)(de)(de)磷酸鐵鋰(li)儲(chu)能(neng),這樣比(bi)(bi)較(jiao)的(de)(de)(de)話(hua),實際上(shang)它(ta)(ta)(ta)的(de)(de)(de)電(dian)(dian)(dian)價(jia)目前還比(bi)(bi)較(jiao)高的(de)(de)(de)。為什么光伏(fu)(fu)發電(dian)(dian)(dian)和風(feng)力發電(dian)(dian)(dian)現在電(dian)(dian)(dian)價(jia)低,主要是(shi)(shi)(shi)它(ta)(ta)(ta)沒(mei)(mei)有配置功儲(chu)能(neng),所以它(ta)(ta)(ta)的(de)(de)(de)電(dian)(dian)(dian)價(jia)低。因此(ci),要走高比(bi)(bi)例可(ke)再(zai)生能(neng)源之路,只有光伏(fu)(fu)和風(feng)電(dian)(dian)(dian)是(shi)(shi)(shi)沒(mei)(mei)有辦法(fa)實現的(de)(de)(de),必須是(shi)(shi)(shi)光熱、光伏(fu)(fu)和風(feng)電(dian)(dian)(dian)協(xie)同發展(zhan),才能(neng)實現這個(ge)目標。
國(guo)務院在(zai)2022年(nian)頒布的(de)(de)關于(yu)碳(tan)達峰行動(dong)方(fang)案的(de)(de)通知之(zhi)中也明確(que)指出(chu),積極發展太陽能光(guang)熱(re)發電,推動(dong)建立(li)光(guang)熱(re)發電與光(guang)伏發電、風電互(hu)補調節的(de)(de)綜(zong)合(he)可再生(sheng)能源(yuan)發電基地。而(er)且,在(zai)這個文件(jian)頒布出(chu)來以(yi)后,無論是我們在(zai)新(xin)疆(jiang),還(huan)是在(zai)內蒙古(gu),還(huan)是在(zai)東北吉林在(zai)建的(de)(de)配的(de)(de)光(guang)熱(re)項目(mu)目(mu)前已(yi)經超(chao)過(guo)了400萬千瓦(wa)。
在太陽(yang)能(neng)熱(re)發電(dian)(dian)從它(ta)誕生的(de)一(yi)開始,就是(shi)跟(gen)熔(rong)鹽儲能(neng)的(de)結合,比如說對于槽(cao)式光熱(re)電(dian)(dian)站(zhan),它(ta)就用大(da)容(rong)量(liang)的(de)熔(rong)鹽儲熱(re)耦合導熱(re)油傳(chuan)熱(re)這樣的(de)模式,全世界已(yi)(yi)有(you)25座這樣的(de)槽(cao)式太陽(yang)能(neng)熱(re)電(dian)(dian)站(zhan)成功投運,最長的(de)已(yi)(yi)經(jing)有(you)18年的(de)運行(xing)經(jing)驗。已(yi)(yi)經(jing)證明了(le)大(da)容(rong)量(liang)的(de)熔(rong)鹽傳(chuan)熱(re)是(shi)非(fei)常好的(de)儲能(neng)技術。
導熱(re)(re)(re)(re)油做(zuo)槽式光(guang)熱(re)(re)(re)(re)電(dian)(dian)站(zhan)的(de)(de)(de)(de)傳(chuan)熱(re)(re)(re)(re)介質,導熱(re)(re)(re)(re)油最高溫度只(zhi)有(you)400度,現在(zai)(zai)的(de)(de)(de)(de)發(fa)(fa)展趨勢是熔(rong)鹽既(ji)做(zuo)傳(chuan)熱(re)(re)(re)(re)介質,又做(zuo)蓄熱(re)(re)(re)(re)介質。這樣(yang)的(de)(de)(de)(de)話,可以把汽(qi)輪(lun)機入(ru)口蒸汽(qi)參數(shu)由370多(duo)度提高到535度,這樣(yang)就大(da)幅(fu)度的(de)(de)(de)(de)提高了光(guang)熱(re)(re)(re)(re)發(fa)(fa)電(dian)(dian)的(de)(de)(de)(de)效(xiao)率。這個在(zai)(zai)意大(da)利有(you)一個五兆瓦(wa)的(de)(de)(de)(de)示范(fan)電(dian)(dian)站(zhan),咱(zan)們(men)國(guo)家做(zuo)了800米長(chang)的(de)(de)(de)(de)槽式熔(rong)鹽傳(chuan)熱(re)(re)(re)(re)回路,現在(zai)(zai)正(zheng)在(zai)(zai)建設一個50兆瓦(wa)的(de)(de)(de)(de)熔(rong)鹽傳(chuan)熱(re)(re)(re)(re)槽式光(guang)熱(re)(re)(re)(re)電(dian)(dian)站(zhan)。
對于塔(ta)式光熱(re)電站,實際上現在(zai)(zai)包括(kuo)美國、西班牙、摩洛(luo)哥,在(zai)(zai)我們(men)國家新疆(jiang)哈(ha)密等等都是采用熔鹽(yan)作為(wei)傳熱(re)和(he)蓄熱(re)的介質,在(zai)(zai)吸熱(re)器里面就把(ba)熔鹽(yan)作為(wei)吸熱(re)的工質,同時用大容量(liang)熔鹽(yan)儲熱(re),這種技術目前來(lai)說它已經建成了八座,裝機容量(liang)達(da)到了580兆(zhao)瓦。
對于(yu)線性(xing)菲(fei)涅爾,現在既用(yong)熔(rong)鹽做傳熱工質,又做蓄熱工質。這(zhe)個(ge)(ge)我們國家(jia)已(yi)經走(zou)在了全世界的前列,在蘭州建設了線性(xing)菲(fei)涅爾50兆(zhao)瓦的光熱電(dian)站,這(zhe)個(ge)(ge)運行的也非常的成功。
熔鹽(yan)儲(chu)(chu)(chu)熱(re)另外(wai)一(yi)(yi)個用(yong)途是(shi)現在大量的(de)風電(dian)和光電(dian)急需一(yi)(yi)種儲(chu)(chu)(chu)能技(ji)術,它(ta)可(ke)以(yi)跟熔鹽(yan)儲(chu)(chu)(chu)熱(re)結(jie)合(he)(he)起來(lai),熔鹽(yan)儲(chu)(chu)(chu)熱(re)系統可(ke)帶一(yi)(yi)個汽(qi)輪機,這樣的(de)話就可(ke)以(yi)在它(ta)棄風棄光的(de)時(shi)候把電(dian)能轉換為熱(re)能儲(chu)(chu)(chu)存(cun)起來(lai),在高(gao)峰(feng)用(yong)的(de)時(shi)候再放出來(lai),驅動汽(qi)輪機發(fa)電(dian),同時(shi)它(ta)還(huan)可(ke)以(yi)實現熱(re)電(dian)冷三(san)聯供(gong),它(ta)既可(ke)以(yi)供(gong)電(dian),又(you)(you)可(ke)以(yi)供(gong)熱(re),又(you)(you)可(ke)以(yi)供(gong)冷。這種技(ji)術跟風光結(jie)合(he)(he)起來(lai),尤其是(shi)風光綜合(he)(he)能源系統,用(yong)熔鹽(yan)做儲(chu)(chu)(chu)能是(shi)一(yi)(yi)種非(fei)常好的(de)技(ji)術,而且它(ta)具(ju)有(you)成(cheng)本低、壽命(ming)長的(de)好處。
現在(zai)有好幾個大的(de)熔鹽(yan)儲能電(dian)站啟動(dong)建設(she),分別在(zai)湖南和(he)山東省的(de)壽光(guang)市(shi),另外咱們紹(shao)興建的(de)熔鹽(yan)儲熱(re)示范工程,就是用(yong)風電(dian)和(he)光(guang)電(dian)來加熱(re)熔鹽(yan)儲熱(re),來實現熱(re)電(dian)聯供。這個在(zai)去年(nian)開始(shi)運行,一年(nian)可(ke)以發電(dian)6370萬千瓦時,年(nian)產蒸(zheng)汽84萬噸。
電(dian)(dian)(dian)加(jia)(jia)熱(re)(re)熔鹽(yan)儲(chu)(chu)熱(re)(re)發(fa)(fa)(fa)電(dian)(dian)(dian),要想(xiang)跟抽水蓄能電(dian)(dian)(dian)站的(de)(de)(de)(de)效(xiao)(xiao)率(lv)相(xiang)(xiang)當的(de)(de)(de)(de)話(hua),必須要既供熱(re)(re)又發(fa)(fa)(fa)電(dian)(dian)(dian)。但是(shi)如(ru)果(guo)要是(shi)沒有用(yong)熱(re)(re)需求的(de)(de)(de)(de)地方怎么辦?我(wo)(wo)們(men)可以(yi)(yi)用(yong)氣(qi)體(ti)壓(ya)(ya)縮(suo)熱(re)(re)泵(beng)(beng)加(jia)(jia)熱(re)(re)熔鹽(yan)儲(chu)(chu)熱(re)(re)發(fa)(fa)(fa)電(dian)(dian)(dian),我(wo)(wo)們(men)不是(shi)用(yong)電(dian)(dian)(dian)直接加(jia)(jia)熱(re)(re)來儲(chu)(chu)存(cun),是(shi)用(yong)電(dian)(dian)(dian)帶動一個(ge)熱(re)(re)泵(beng)(beng)來產生高溫熱(re)(re)量(liang),這(zhe)(zhe)樣的(de)(de)(de)(de)話(hua),熱(re)(re)泵(beng)(beng)循環(huan)COP可達到1.5~2。釋熱(re)(re)階段(duan)發(fa)(fa)(fa)電(dian)(dian)(dian),就(jiu)用(yong)咱們(men)傳統的(de)(de)(de)(de)布雷頓(dun)循環(huan)來發(fa)(fa)(fa)電(dian)(dian)(dian)。這(zhe)(zhe)樣的(de)(de)(de)(de)話(hua),就(jiu)可以(yi)(yi)做(zuo)到40%的(de)(de)(de)(de)釋熱(re)(re)發(fa)(fa)(fa)電(dian)(dian)(dian)效(xiao)(xiao)率(lv),這(zhe)(zhe)樣兩個(ge)效(xiao)(xiao)率(lv)乘積(ji)就(jiu)是(shi)氣(qi)體(ti)壓(ya)(ya)縮(suo)熱(re)(re)泵(beng)(beng)加(jia)(jia)熱(re)(re)熔鹽(yan)儲(chu)(chu)熱(re)(re)發(fa)(fa)(fa)電(dian)(dian)(dian)系統的(de)(de)(de)(de)電(dian)(dian)(dian)-電(dian)(dian)(dian)往返效(xiao)(xiao)率(lv),該(gai)系統電(dian)(dian)(dian)-電(dian)(dian)(dian)的(de)(de)(de)(de)往返效(xiao)(xiao)率(lv)就(jiu)可以(yi)(yi)做(zuo)到60%—80%。這(zhe)(zhe)樣就(jiu)完全跟抽水蓄能,壓(ya)(ya)縮(suo)空氣(qi)蓄能的(de)(de)(de)(de)效(xiao)(xiao)率(lv)相(xiang)(xiang)當,而(er)且沒有用(yong)熱(re)(re)需求的(de)(de)(de)(de)場合是(shi)非常適合的(de)(de)(de)(de),這(zhe)(zhe)也是(shi)一項前(qian)沿(yan)技(ji)術(shu)。現在包(bao)括國(guo)外和(he)我(wo)(wo)們(men)國(guo)家都在研發(fa)(fa)(fa)這(zhe)(zhe)項技(ji)術(shu),將來有望成(cheng)為大規(gui)模(mo)儲(chu)(chu)能電(dian)(dian)(dian)站的(de)(de)(de)(de)技(ji)術(shu)。
熔(rong)(rong)鹽(yan)(yan)(yan)儲(chu)(chu)熱(re)第(di)三(san)個用(yong)(yong)途就是火(huo)電(dian)(dian)(dian)(dian)廠靈活性(xing)改造,現(xian)(xian)在(zai)(zai)(zai)為了(le)(le)消納可再(zai)(zai)生能(neng)源(yuan)發電(dian)(dian)(dian)(dian),火(huo)電(dian)(dian)(dian)(dian)廠要進行(xing)深度(du)的(de)(de)(de)調峰(feng),甚至要求零功(gong)(gong)率(lv)發電(dian)(dian)(dian)(dian),零功(gong)(gong)率(lv)上(shang)網。但(dan)電(dian)(dian)(dian)(dian)站鍋(guo)爐沒辦法(fa)實(shi)現(xian)(xian)零功(gong)(gong)率(lv)或者是低功(gong)(gong)率(lv)。比如說40%是最好做到的(de)(de)(de),現(xian)(xian)在(zai)(zai)(zai)的(de)(de)(de)先(xian)進技(ji)術可降到30%。但(dan)是要實(shi)現(xian)(xian)更深的(de)(de)(de)15%的(de)(de)(de)發電(dian)(dian)(dian)(dian),它就得(de)加(jia)(jia)(jia)上(shang)儲(chu)(chu)熱(re)來實(shi)現(xian)(xian)。加(jia)(jia)(jia)上(shang)儲(chu)(chu)熱(re),如果供熱(re)的(de)(de)(de)話完全可以(yi)用(yong)(yong)水儲(chu)(chu)熱(re)做,但(dan)是如果沒有熱(re)用(yong)(yong)戶,它要給工(gong)業(ye)用(yong)(yong),必須(xu)要用(yong)(yong)熔(rong)(rong)鹽(yan)(yan)(yan)傳熱(re)結合起來。現(xian)(xian)在(zai)(zai)(zai)火(huo)電(dian)(dian)(dian)(dian)廠靈活性(xing)改造,大(da)家(jia)可以(yi)注意到,有很多要配熔(rong)(rong)鹽(yan)(yan)(yan)儲(chu)(chu)熱(re)的(de)(de)(de)工(gong)程。現(xian)(xian)在(zai)(zai)(zai)建成(cheng)的(de)(de)(de)就是江(jiang)(jiang)蘇(su)靖江(jiang)(jiang)發電(dian)(dian)(dian)(dian)公司(si)用(yong)(yong)的(de)(de)(de)電(dian)(dian)(dian)(dian)加(jia)(jia)(jia)熱(re),電(dian)(dian)(dian)(dian)場發的(de)(de)(de)電(dian)(dian)(dian)(dian)不讓(rang)它上(shang),用(yong)(yong)電(dian)(dian)(dian)(dian)加(jia)(jia)(jia)熱(re)熔(rong)(rong)鹽(yan)(yan)(yan)儲(chu)(chu)熱(re),給工(gong)業(ye)供蒸汽。這(zhe)個已(yi)經(jing)是2022年12月正式的(de)(de)(de)投入(ru)運行(xing)。在(zai)(zai)(zai)內蒙(meng)古魏家(jia)峁火(huo)電(dian)(dian)(dian)(dian)站,采用(yong)(yong)電(dian)(dian)(dian)(dian)廠抽的(de)(de)(de)再(zai)(zai)熱(re)蒸汽加(jia)(jia)(jia)熱(re)熔(rong)(rong)鹽(yan)(yan)(yan)進行(xing)儲(chu)(chu)能(neng)。在(zai)(zai)(zai)發電(dian)(dian)(dian)(dian)的(de)(de)(de)高峰(feng)期(qi),熔(rong)(rong)鹽(yan)(yan)(yan)釋(shi)熱(re)加(jia)(jia)(jia)熱(re)給水,這(zhe)樣的(de)(de)(de)話,它在(zai)(zai)(zai)用(yong)(yong)電(dian)(dian)(dian)(dian)的(de)(de)(de)高峰(feng)期(qi)就可以(yi)節省煤耗,這(zhe)樣的(de)(de)(de)系統(tong)也在(zai)(zai)(zai)今年的(de)(de)(de)5月15日成(cheng)功(gong)(gong)的(de)(de)(de)投入(ru)運行(xing),使(shi)用(yong)(yong)了(le)(le)北工(gong)大(da)研發、河北井礦新(xin)能(neng)源(yuan)生產的(de)(de)(de)260噸低熔(rong)(rong)點熔(rong)(rong)鹽(yan)(yan)(yan)。
熔(rong)(rong)(rong)(rong)鹽(yan)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)第四(si)個(ge)(ge)用(yong)(yong)(yong)(yong)途就(jiu)是(shi)(shi)(shi)(shi)(shi)清潔能源供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re),因為現在不(bu)讓燒煤(mei)了,所以(yi)(yi)必須得(de)用(yong)(yong)(yong)(yong)電(dian)加熱(re)(re)(re)(re)(re)(re)(re)(re)來(lai)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)。電(dian)加熱(re)(re)(re)(re)(re)(re)(re)(re)因為晚(wan)上(shang)的(de)(de)(de)谷電(dian)比(bi)較便(bian)宜,這樣可以(yi)(yi)用(yong)(yong)(yong)(yong)晚(wan)上(shang)低價的(de)(de)(de)供(gong)(gong)(gong)谷電(dian)或者是(shi)(shi)(shi)(shi)(shi)不(bu)能上(shang)網的(de)(de)(de)風/光電(dian)加熱(re)(re)(re)(re)(re)(re)(re)(re)來(lai)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re),白天(tian)利用(yong)(yong)(yong)(yong)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)系統放出的(de)(de)(de)熱(re)(re)(re)(re)(re)(re)(re)(re)就(jiu)可以(yi)(yi)為工(gong)業(ye)(ye)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)或建筑(zhu)(zhu)供(gong)(gong)(gong)暖了。實際(ji)上(shang)熔(rong)(rong)(rong)(rong)鹽(yan)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)而(er)言,它(ta)在工(gong)業(ye)(ye)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)更具優勢(shi)。因為建筑(zhu)(zhu)供(gong)(gong)(gong)暖只有(you)一個(ge)(ge)采(cai)暖季,就(jiu)是(shi)(shi)(shi)(shi)(shi)三個(ge)(ge)月(yue)到(dao)五個(ge)(ge)月(yue)的(de)(de)(de)采(cai)暖季的(de)(de)(de)運(yun)(yun)行,夏(xia)天(tian)就(jiu)不(bu)運(yun)(yun)行了。但是(shi)(shi)(shi)(shi)(shi)對(dui)于(yu)工(gong)業(ye)(ye)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)是(shi)(shi)(shi)(shi)(shi)一年四(si)季都需要,而(er)且對(dui)于(yu)建筑(zhu)(zhu)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)它(ta)需要用(yong)(yong)(yong)(yong)的(de)(de)(de)熱(re)(re)(re)(re)(re)(re)(re)(re),可以(yi)(yi)用(yong)(yong)(yong)(yong)水蓄(xu)熱(re)(re)(re)(re)(re)(re)(re)(re),也可以(yi)(yi)用(yong)(yong)(yong)(yong)固體蓄(xu)熱(re)(re)(re)(re)(re)(re)(re)(re)。但是(shi)(shi)(shi)(shi)(shi)工(gong)業(ye)(ye)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re)的(de)(de)(de)話,熔(rong)(rong)(rong)(rong)鹽(yan)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)都是(shi)(shi)(shi)(shi)(shi)有(you)得(de)天(tian)獨厚的(de)(de)(de)優勢(shi),有(you)的(de)(de)(de)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)沒辦法做到(dao),但是(shi)(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)鹽(yan)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)可以(yi)(yi)做到(dao)。用(yong)(yong)(yong)(yong)這種辦法給工(gong)業(ye)(ye)供(gong)(gong)(gong)蒸汽(qi)是(shi)(shi)(shi)(shi)(shi)一種非(fei)常(chang)好的(de)(de)(de)方式。我們(men)也在河北(bei)做了兩(liang)個(ge)(ge)示范工(gong)程(cheng),一個(ge)(ge)是(shi)(shi)(shi)(shi)(shi)7萬平方米(mi)的(de)(de)(de)建筑(zhu)(zhu)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re),使用(yong)(yong)(yong)(yong)了我們(men)自主研發的(de)(de)(de)450噸(dun)低熔(rong)(rong)(rong)(rong)點二元熔(rong)(rong)(rong)(rong)鹽(yan)。一個(ge)(ge)是(shi)(shi)(shi)(shi)(shi)2萬平方米(mi)的(de)(de)(de)建筑(zhu)(zhu)供(gong)(gong)(gong)熱(re)(re)(re)(re)(re)(re)(re)(re),用(yong)(yong)(yong)(yong)的(de)(de)(de)是(shi)(shi)(shi)(shi)(shi)200噸(dun)熔(rong)(rong)(rong)(rong)鹽(yan)。這兩(liang)個(ge)(ge)工(gong)程(cheng)都成功(gong)的(de)(de)(de)運(yun)(yun)行了數年,一個(ge)(ge)運(yun)(yun)行了三年,一個(ge)(ge)運(yun)(yun)行了四(si)年。另外北(bei)京熱(re)(re)(re)(re)(re)(re)(re)(re)力公司(si)建了一個(ge)(ge)熔(rong)(rong)(rong)(rong)鹽(yan)儲(chu)(chu)(chu)熱(re)(re)(re)(re)(re)(re)(re)(re)示范工(gong)程(cheng),西子航空公司(si)用(yong)(yong)(yong)(yong)屋頂光伏電(dian)加熱(re)(re)(re)(re)(re)(re)(re)(re),給熔(rong)(rong)(rong)(rong)鹽(yan)傳熱(re)(re)(re)(re)(re)(re)(re)(re)供(gong)(gong)(gong)蒸汽(qi)。
另外,在(zai)太陽能的供熱里頭如果(guo)用槽式(shi)(shi)聚(ju)(ju)光或者是線(xian)性(xing)菲涅爾聚(ju)(ju)光的話,它可以(yi)用來做供熱或者是熱電(dian)(dian)冷聯供,這個也是在(zai)西(xi)部地(di)區太陽能資(zi)源豐富的地(di)區是有(you)非常(chang)好的用途。我(wo)們在(zai)河北的臨城也建成了8000瓦(wa)的槽式(shi)(shi)聚(ju)(ju)光加熱熔(rong)鹽,再用熔(rong)鹽來傳(chuan)熱蓄熱,驅動一個單(dan)螺桿膨脹機有(you)機朗肯(ken)循環(huan)發電(dian)(dian)的示范系統。
另外現在(zai)壓(ya)縮空氣儲能(neng),可(ke)(ke)以用熔鹽來回收儲存它的(de)壓(ya)縮熱,這樣可(ke)(ke)以提高壓(ya)縮空氣儲能(neng)的(de)效率,電(dian)-電(dian)效率可(ke)(ke)提高3—6個百分點。這個我們(men)跟(gen)中能(neng)建數科集團在(zai)合作,開發壓(ya)縮空氣儲能(neng)用的(de)低溫(wen)熔鹽。
另(ling)外一個就是余熱(re)利用,因為現在工業領域有很(hen)多(duo)的間(jian)歇(xie)性(xing)(xing)余熱(re),這(zhe)些余熱(re)的溫度比較(jiao)高,但是它是間(jian)歇(xie)性(xing)(xing)的。如果配上(shang)熔(rong)鹽儲熱(re),把間(jian)歇(xie)性(xing)(xing)余熱(re)變(bian)成連(lian)續性(xing)(xing)熱(re)量(liang)再(zai)來使用,無論發電(dian)還(huan)是什(shen)么,這(zhe)個都是非常有前景的。
在(zai)(zai)工業傳(chuan)熱(re)領(ling)域,現在(zai)(zai)用熔(rong)鹽(yan)(yan)傳(chuan)熱(re)超快冷卻軋(ya)制(zhi)超級鋼,用熔(rong)鹽(yan)(yan)冷卻比(bi)水(shui)冷卻可(ke)以(yi)提高(gao)鋼的(de)強度(du)。同時(shi),它回收的(de)余熱(re)比(bi)水(shui)的(de)溫(wen)度(du)要(yao)高(gao)的(de)多,還可(ke)以(yi)進(jin)行余熱(re)發(fa)電,所以(yi)它是有非常大的(de)用途。熔(rong)鹽(yan)(yan)傳(chuan)熱(re)在(zai)(zai)其他的(de)行業,都可(ke)以(yi)作為(wei)一種(zhong)高(gao)溫(wen)的(de)傳(chuan)熱(re)工質來(lai)使用。熔(rong)鹽(yan)(yan)高(gao)溫(wen)傳(chuan)熱(re)在(zai)(zai)核電領(ling)域也(ye)得(de)到(dao)了(le)應用。總(zong)之,熔(rong)鹽(yan)(yan)傳(chuan)熱(re)它未(wei)(wei)來(lai)的(de)發(fa)展(zhan)前景挺好(hao)的(de),光(guang)熱(re)發(fa)電熔(rong)鹽(yan)(yan)儲能裝機容(rong)量已經達(da)到(dao)了(le)21 GWh,未(wei)(wei)來(lai)預測到(dao)2030年(nian)將達(da)到(dao)630 GWh,因此還是非常大的(de),每(mei)年(nian)有百億美元以(yi)上的(de)市(shi)場。
我(wo)(wo)們北工(gong)大實際(ji)上從2003年開始做(zuo)熔(rong)鹽(yan)(yan)(yan)儲熱(re),也有(you)一(yi)個(ge)(ge)非常大的(de)(de)團隊在做(zuo)熔(rong)鹽(yan)(yan)(yan)儲熱(re)。所以這里(li)面(mian)我(wo)(wo)們也是三代人結合,老(lao)中青結合來做(zuo)了幾十(shi)年的(de)(de)熔(rong)鹽(yan)(yan)(yan)儲熱(re)。我(wo)(wo)們主(zhu)要從三個(ge)(ge)方面(mian)做(zuo),一(yi)個(ge)(ge)是現有(you)熔(rong)鹽(yan)(yan)(yan)存在液(ye)體溫域窄(zhai)、熔(rong)點高(gao)(gao)和分(fen)解(jie)溫度低(di)的(de)(de)缺陷,我(wo)(wo)們就(jiu)進行革新(xin),致(zhi)力于先(xian)進低(di)熔(rong)點高(gao)(gao)分(fen)解(jie)溫度寬液(ye)體溫域熔(rong)鹽(yan)(yan)(yan)研發(fa)(fa)。另(ling)外一(yi)個(ge)(ge)熔(rong)鹽(yan)(yan)(yan)對流(liu)傳(chuan)熱(re)機理(li)、熔(rong)鹽(yan)(yan)(yan)換熱(re)器、熔(rong)鹽(yan)(yan)(yan)電(dian)(dian)加熱(re)器等(deng)(deng)(deng)等(deng)(deng)(deng)關鍵設備研發(fa)(fa)。另(ling)外一(yi)個(ge)(ge)就(jiu)是原(yuan)來熔(rong)鹽(yan)(yan)(yan)傳(chuan)熱(re)主(zhu)要用(yong)在太陽(yang)能熱(re)發(fa)(fa)電(dian)(dian)領域,我(wo)(wo)們把(ba)它(ta)推廣到了清(qing)潔能源(yuan)供暖,火電(dian)(dian)靈活性(xing)改造,熔(rong)鹽(yan)(yan)(yan)儲能電(dian)(dian)站等(deng)(deng)(deng)新(xin)型應用(yong)領域。
我(wo)(wo)(wo)們(men)(men)(men)(men)(men)在(zai)(zai)(zai)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)方面先后獲得了(le)(le)(le)國(guo)(guo)(guo)家重點(dian)研發(fa)(fa)計(ji)(ji)劃(hua)項(xiang)目(mu)(mu)(mu)及課題,國(guo)(guo)(guo)家863計(ji)(ji)劃(hua),973計(ji)(ji)劃(hua)、國(guo)(guo)(guo)際(ji)合作項(xiang)目(mu)(mu)(mu)等一(yi)(yi)(yi)系(xi)列(lie)(lie)項(xiang)目(mu)(mu)(mu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)支持,總(zong)共得到了(le)(le)(le)有(you)六千多萬元的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)支持。同時也(ye)發(fa)(fa)表(biao)了(le)(le)(le)國(guo)(guo)(guo)際(ji)期刊論文有(you)79篇,有(you)一(yi)(yi)(yi)系(xi)列(lie)(lie)授權的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)發(fa)(fa)明專(zhuan)利。同時我(wo)(wo)(wo)們(men)(men)(men)(men)(men)也(ye)參與了(le)(le)(le)關于蓄熱(re)(re)(re)(re)型電加(jia)熱(re)(re)(re)(re)性置(zhi)、工業余(yu)熱(re)(re)(re)(re)梯級(ji)綜合利用(yong)導則,太陽能(neng)中(zhong)低(di)溫蓄熱(re)(re)(re)(re)裝(zhuang)置(zhi),太陽能(neng)光(guang)熱(re)(re)(re)(re)發(fa)(fa)電傳(chuan)熱(re)(re)(re)(re)蓄熱(re)(re)(re)(re)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)技術要求等國(guo)(guo)(guo)家標(biao)準(zhun)編寫,也(ye)參與了(le)(le)(le)一(yi)(yi)(yi)系(xi)列(lie)(lie)行業和團體標(biao)準(zhun)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)制定(ding)。我(wo)(wo)(wo)們(men)(men)(men)(men)(men)也(ye)建設了(le)(le)(le)完(wan)整的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)試(shi)平臺,可以(yi)進行熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)各種的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)物理性能(neng)和腐蝕(shi)性能(neng),以(yi)及它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)穩定(ding)性能(neng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)測(ce)試(shi)。在(zai)(zai)(zai)低(di)熔(rong)(rong)(rong)(rong)點(dian)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)研發(fa)(fa)方面,目(mu)(mu)(mu)前在(zai)(zai)(zai)光(guang)熱(re)(re)(re)(re)發(fa)(fa)電中(zhong)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)都(dou)是(shi)太陽鹽(yan)(yan)(yan),我(wo)(wo)(wo)們(men)(men)(men)(men)(men)廣大用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)太陽熱(re)(re)(re)(re),它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)點(dian)(凝固點(dian))是(shi)220度(du)(du),我(wo)(wo)(wo)們(men)(men)(men)(men)(men)開(kai)發(fa)(fa)了(le)(le)(le)一(yi)(yi)(yi)系(xi)列(lie)(lie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan),我(wo)(wo)(wo)們(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)點(dian)都(dou)降到了(le)(le)(le)100度(du)(du)附近,有(you)80多度(du)(du),90多度(du)(du),還(huan)有(you)110多度(du)(du)。我(wo)(wo)(wo)們(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使用(yong)溫度(du)(du)達(da)到了(le)(le)(le)600溫度(du)(du)以(yi)上,同時我(wo)(wo)(wo)們(men)(men)(men)(men)(men)也(ye)開(kai)發(fa)(fa)了(le)(le)(le)熔(rong)(rong)(rong)(rong)點(dian)是(shi)132度(du)(du),分解溫度(du)(du)是(shi)734度(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)寬液體溫域熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan),特別適(shi)合二(er)氧化(hua)碳(tan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)發(fa)(fa)電,還(huan)有(you)一(yi)(yi)(yi)些高溫工業傳(chuan)熱(re)(re)(re)(re)等領域的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)使用(yong)。我(wo)(wo)(wo)們(men)(men)(men)(men)(men)低(di)熔(rong)(rong)(rong)(rong)點(dian)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)方面發(fa)(fa)表(biao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)國(guo)(guo)(guo)際(ji)SCI期刊論文在(zai)(zai)(zai)全球排名第(di)一(yi)(yi)(yi)。我(wo)(wo)(wo)們(men)(men)(men)(men)(men)在(zai)(zai)(zai)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)當中(zhong)添加(jia)納米(mi)粒子,可以(yi)提高它(ta)(ta)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)比熱(re)(re)(re)(re)20%,同時可以(yi)提高對(dui)(dui)流(liu)傳(chuan)熱(re)(re)(re)(re)系(xi)數(shu)40%。我(wo)(wo)(wo)們(men)(men)(men)(men)(men)也(ye)是(shi)在(zai)(zai)(zai)國(guo)(guo)(guo)際(ji)上第(di)二(er)個建立(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)對(dui)(dui)流(liu)傳(chuan)熱(re)(re)(re)(re)實驗臺的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單位,我(wo)(wo)(wo)們(men)(men)(men)(men)(men)把(ba)我(wo)(wo)(wo)們(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)研究結果(guo)跟(gen)美(mei)國(guo)(guo)(guo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)據結合在(zai)(zai)(zai)一(yi)(yi)(yi)起(qi),提出了(le)(le)(le)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)對(dui)(dui)流(liu)傳(chuan)熱(re)(re)(re)(re)通用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)關聯式,美(mei)國(guo)(guo)(guo)愛達(da)荷(he)試(shi)驗室的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)兩篇報告都(dou)大篇幅(fu)引用(yong)我(wo)(wo)(wo)們(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)論文,把(ba)我(wo)(wo)(wo)們(men)(men)(men)(men)(men)推(tui)薦的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)六個熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)對(dui)(dui)流(liu)傳(chuan)熱(re)(re)(re)(re)公式作為(wei)唯一(yi)(yi)(yi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)計(ji)(ji)算公式推(tui)薦。還(huan)有(you)各種自然對(dui)(dui)流(liu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳(chuan)熱(re)(re)(re)(re),另外一(yi)(yi)(yi)個我(wo)(wo)(wo)們(men)(men)(men)(men)(men)為(wei)了(le)(le)(le)滿足鋼(gang)鐵(tie)(tie),因為(wei)鋼(gang)鐵(tie)(tie)它(ta)(ta)要超快冷卻,我(wo)(wo)(wo)們(men)(men)(men)(men)(men)在(zai)(zai)(zai)世(shi)界(jie)上首次做了(le)(le)(le)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)射流(liu)沖擊傳(chuan)熱(re)(re)(re)(re),進行了(le)(le)(le)數(shu)字值模擬和實驗。另外我(wo)(wo)(wo)們(men)(men)(men)(men)(men)做熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)腐蝕(shi)性,我(wo)(wo)(wo)們(men)(men)(men)(men)(men)大量做了(le)(le)(le)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)動態腐蝕(shi)。熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)在(zai)(zai)(zai)流(liu)動的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)狀態下,我(wo)(wo)(wo)們(men)(men)(men)(men)(men)建立(li)了(le)(le)(le)熔(rong)(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)動態腐蝕(shi)實驗,這在(zai)(zai)(zai)世(shi)界(jie)上我(wo)(wo)(wo)們(men)(men)(men)(men)(men)也(ye)是(shi)少數(shu)幾(ji)個動態腐蝕(shi)研究單位之一(yi)(yi)(yi)。
另外(wai)對(dui)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)設備,比(bi)如說(shuo)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)儲(chu)罐方面,我(wo)們(men)做了(le)大(da)量(liang)的(de)(de)數值(zhi)模擬,找到它的(de)(de)薄(bo)弱環節,提出應(ying)對(dui)措(cuo)施。另外(wai)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)的(de)(de)電(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)(re),這(zhe)是(shi)我(wo)們(men)開發的(de)(de)6兆(zhao)瓦的(de)(de)鹽(yan)(yan)(yan)電(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)(re)器(qi),還有(you)(you)電(dian)(dian)(dian)磁加(jia)熱(re)(re)(re)(re)(re)(re)的(de)(de)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)電(dian)(dian)(dian)加(jia)熱(re)(re)(re)(re)(re)(re)器(qi)我(wo)們(men)也研制出了(le)樣機。另外(wai)我(wo)們(men)進行了(le)各種熔(rong)(rong)(rong)鹽(yan)(yan)(yan)換熱(re)(re)(re)(re)(re)(re)器(qi)研發,包括熔(rong)(rong)(rong)鹽(yan)(yan)(yan)-壓縮空氣、熔(rong)(rong)(rong)鹽(yan)(yan)(yan)-水(shui)/蒸汽、熔(rong)(rong)(rong)鹽(yan)(yan)(yan)-有(you)(you)機工質、印刷電(dian)(dian)(dian)路板換熱(re)(re)(re)(re)(re)(re)器(qi)、纏繞管換熱(re)(re)(re)(re)(re)(re)器(qi)等等。同(tong)時我(wo)們(men)也在樓頂建了(le)一個槽(cao)式聚(ju)光熔(rong)(rong)(rong)鹽(yan)(yan)(yan)傳(chuan)熱(re)(re)(re)(re)(re)(re)蓄熱(re)(re)(re)(re)(re)(re)試(shi)驗(yan)(yan)臺,進行了(le)長期的(de)(de)實驗(yan)(yan)。另外(wai)我(wo)們(men)為(wei)(wei)了(le)針對(dui)小(xiao)型(xing)蓄熱(re)(re)(re)(re)(re)(re)的(de)(de)需求,我(wo)們(men)開發了(le)單罐熔(rong)(rong)(rong)鹽(yan)(yan)(yan)儲(chu)熱(re)(re)(re)(re)(re)(re)系(xi)統(tong),因為(wei)(wei)對(dui)于小(xiao)型(xing)系(xi)統(tong)分布式儲(chu)熱(re)(re)(re)(re)(re)(re)系(xi)統(tong),雙(shuang)罐熔(rong)(rong)(rong)鹽(yan)(yan)(yan)儲(chu)熱(re)(re)(re)(re)(re)(re)系(xi)統(tong)存在占地面積大(da)和(he)熔(rong)(rong)(rong)鹽(yan)(yan)(yan)泵選型(xing)難(nan)得缺陷(xian),為(wei)(wei)此我(wo)們(men)開發了(le)小(xiao)型(xing)單罐熔(rong)(rong)(rong)鹽(yan)(yan)(yan)儲(chu)熱(re)(re)(re)(re)(re)(re)系(xi)統(tong),已經在呼和(he)浩特體育場館的(de)(de)供熱(re)(re)(re)(re)(re)(re)中獲得了(le)應(ying)用。
這是(shi)我(wo)(wo)們(men)(men)建的(de)(de)雙罐(guan)熔(rong)(rong)(rong)鹽(yan)(yan)儲熱(re)綠色供(gong)熱(re)示范工程(cheng),剛才(cai)已經(jing)說過了。另外我(wo)(wo)們(men)(men)的(de)(de)低熔(rong)(rong)(rong)點(dian)熔(rong)(rong)(rong)鹽(yan)(yan)也在熔(rong)(rong)(rong)鹽(yan)(yan)傳熱(re)蓄熱(re)中得到了大量的(de)(de)應用(yong),這是(shi)在南(nan)通的(de)(de)鋼鐵(tie)生產(chan)線上用(yong)的(de)(de)我(wo)(wo)們(men)(men)研(yan)(yan)發(fa)(fa)的(de)(de)低熔(rong)(rong)(rong)點(dian)高分解溫度熔(rong)(rong)(rong)鹽(yan)(yan),可以在600度以上冷(leng)卻(que)鋼鐵(tie)。我(wo)(wo)們(men)(men)也成(cheng)立(li)了河北井礦新能源(yuan)科技公司,進行熔(rong)(rong)(rong)鹽(yan)(yan)材料和設(she)備批量供(gong)應、系統的(de)(de)工程(cheng)技術服務。同時我(wo)(wo)們(men)(men)跟浙江高晟(sheng)光熱(re)發(fa)(fa)電研(yan)(yan)究(jiu)院成(cheng)立(li)了聯合研(yan)(yan)究(jiu)實驗室(shi),開(kai)發(fa)(fa)高溫的(de)(de)混合熔(rong)(rong)(rong)鹽(yan)(yan),跟中能建數科集團成(cheng)立(li)了聯合研(yan)(yan)發(fa)(fa)中心來開(kai)發(fa)(fa)壓(ya)縮空氣用(yong)的(de)(de)低溫熔(rong)(rong)(rong)鹽(yan)(yan),能適用(yong)到150度的(de)(de)低溫熔(rong)(rong)(rong)鹽(yan)(yan)。我(wo)(wo)們(men)(men)的(de)(de)熔(rong)(rong)(rong)鹽(yan)(yan)也在工業領(ling)域,熔(rong)(rong)(rong)鹽(yan)(yan)傳熱(re)等等得到了廣泛(fan)的(de)(de)應用(yong)。
感謝大家,這是(shi)我的(de)報(bao)告,謝謝大家。