來看一下(xia)(xia)五一節后第二周(zhou)(zhou)資源的(de)消化情況，據統(tong)(tong)計(ji)(ji)，節后第二周(zhou)(zhou)國(guo)內建筑翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)庫(ku)存(cun)下(xia)(xia)降(jiang)速(su)度(du)加快，而板(ban)材產(chan)品(pin)庫(ku)存(cun)則延續(xu)上(shang)(shang)升，其中(zhong)建筑翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)庫(ku)存(cun)總(zong)量(liang)1098.67萬(wan)噸(dun)，周(zhou)(zhou)環比(bi)下(xia)(xia)降(jiang)2.94%，而熱(re)(re)軋(ya)卷板(ban)庫(ku)存(cun)463.09萬(wan)噸(dun)，周(zhou)(zhou)環比(bi)上(shang)(shang)升0.63%，冷(leng)軋(ya)卷板(ban)庫(ku)存(cun)160.92萬(wan)噸(dun)，周(zhou)(zhou)環比(bi)上(shang)(shang)升0.875，中(zhong)厚板(ban)庫(ku)存(cun)151.85萬(wan)噸(dun)，微降(jiang)。從(cong)庫(ku)存(cun)的(de)表(biao)現(xian)來看，建筑翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)價格(ge)的(de)走勢(shi)在(zai)后期或將繼續(xu)好于(yu)(yu)板(ban)材市(shi)(shi)場。二是(shi)普(pu)及采(cai)暖(nuan)(nuan)分(fen)(fen)戶計(ji)(ji)一銅(tong)(tong)(tong)(tong)制翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)是(shi)z理想的(de)選擇螺(luo)桿(gan)機組年(nian)起，我國(guo)開(kai)(kai)始(shi)在(zai)城市(shi)(shi)住宅(zhai)供(gong)熱(re)(re)系統(tong)(tong)中(zhong)推行分(fen)(fen)戶計(ji)(ji)量(liang)制度(du)，計(ji)(ji)劃(hua)到2010年(nian)在(zai)實現(xian)普(pu)及。采(cai)暖(nuan)(nuan)分(fen)(fen)戶計(ji)(ji)量(liang)收費政(zheng)策的(de)實施，會促使用戶經(jing)常開(kai)(kai)關(guan)供(gong)熱(re)(re)系統(tong)(tong)，室內管(guan)(guan)(guan)(guan)道就(jiu)將經(jing)受因此(ci)而產(chan)生冷(leng)熱(re)(re)交替時熱(re)(re)脹(zhang)冷(leng)縮的(de)嚴峻考驗。傳統(tong)(tong)的(de)鑄(zhu)鐵翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)由于(yu)(yu)做不到內腔潔(jie)凈(jing)無砂而不能用于(yu)(yu)分(fen)(fen)戶計(ji)(ji)量(liang)，會導致其加速(su)退出城市(shi)(shi)住宅(zhai)市(shi)(shi)場。但銅(tong)(tong)(tong)(tong)制翅(chi)(chi)片(pian)管(guan)(guan)(guan)(guan)可無條件滿足分(fen)(fen)戶計(ji)(ji)量(liang)潔(jie)凈(jing)無砂的(de)要求，適(shi)應(ying)用戶經(jing)常開(kai)(kai)關(guan)供(gong)熱(re)(re)系統(tong)(tong)，處(chu)于(yu)(yu)頻繁的(de)冷(leng)熱(re)(re)交替狀(zhuang)態。而銅(tong)(tong)(tong)(tong)管(guan)(guan)(guan)(guan)路有(you)良好的(de)耐低(di)溫能力(li)與低(di)熱(re)(re)膨(peng)脹(zhang)系數，與目前市(shi)(shi)場主導的(de)鋁塑復(fu)合(he)(he)管(guan)(guan)(guan)(guan)和(he)即管(guan)(guan)(guan)(guan)相比(bi)，銅(tong)(tong)(tong)(tong)管(guan)(guan)(guan)(guan)更加適(shi)合(he)(he)分(fen)(fen)戶計(ji)(ji)的(de)要求。都將使開(kai)(kai)發商(shang)和(he)設計(ji)(ji)人(ren)員更加關(guan)注系統(tong)(tong)的(de)性，來選擇使用銅(tong)(tong)(tong)(tong)材料。

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在(zai)一些換(huan)熱(re)器(qi)中就(jiu)會用到(dao)翅片(pian)管(guan)作為(wei)主(zhu)要(yao)(yao)的換(huan)熱(re)元件，主(zhu)要(yao)(yao)是為(wei)了(le)滿(man)足不同的制冷要(yao)(yao)求，但是對(dui)于這種翅片(pian)管(guan)換(huan)熱(re)器(qi)，也出現了(le)個(ge)別令人煩惱的問題，就(jiu)是換(huan)熱(re)器(qi)的竄液現象。這個(ge)問題比較常見，要(yao)(yao)想從根本上(shang)解(jie)決(jue)還是要(yao)(yao)先了(le)解(jie)其產(chan)生的原因有哪些方面(mian)？

翅(chi)(chi)片(pian)管(guan)(guan)換(huan)熱器之所以(yi)會出現(xian)竄液(ye)現(xian)象，銅翅(chi)(chi)片(pian)管(guan)(guan)廠家，原(yuan)因有(you)(you)很多，銅翅(chi)(chi)片(pian)管(guan)(guan)，還(huan)是(shi)要對裝(zhuang)置(zhi)(zhi)經過(guo)q面細致(zhi)的(de)檢查以(yi)后才(cai)能確定。但總的(de)來說，銅翅(chi)(chi)片(pian)管(guan)(guan)咨詢，不(bu)外乎這(zhe)以(yi)下幾種。一種是(shi)由于翅(chi)(chi)片(pian)管(guan)(guan)選用(yong)的(de)板(ban)材不(bu)當(dang)或(huo)出現(xian)了腐蝕(shi)(shi)(shi)現(xian)象，使得有(you)(you)裂紋或(huo)穿孔的(de)問題發生(sheng)；另一種可能是(shi)由于承受各種作(zuo)用(yong)力后產生(sheng)的(de)腐蝕(shi)(shi)(shi)；還(huan)有(you)(you)一種可能是(shi)發生(sheng)了泄露故(gu)障，使得設備工作(zuo)介質中的(de)有(you)(you)害物(wu)質對裝(zhuang)置(zhi)(zhi)產生(sheng)腐蝕(shi)(shi)(shi)所用(yong)，從(cong)而形成竄液(ye)。

由此可見(jian)，翅片管換(huan)熱器的竄(cuan)液基(ji)本都(dou)是設備缺乏(fa)正確的維(wei)護保(bao)養和使用(yong)造成的，為了確保(bao)問題的再次(ci)發(fa)生，一(yi)定(ding)要適當采取一(yi)些預防措施。

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想(xiang)要(yao)了解銅(tong)鋁(lv)復合翅片管的(de)傳熱(re)原理，先(xian)來(lai)了解一下什么(me)是(shi)換熱(re)系(xi)數(shu)。換熱(re)系(xi)數(shu)是(shi)指單位(wei)溫差和單位(wei)換熱(re)面積(ji)時的(de)換熱(re)量，可以體(ti)現出流體(ti)和壁面之(zhi)間換熱(re)能力的(de)大(da)小。

翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)是由(you)圓管(guan)(guan)或(huo)光(guang)管(guan)(guan)組成的(de)熱(re)交(jiao)換器，那么怎樣(yang)才能提高銅(tong)鋁復(fu)合(he)翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)圓管(guan)(guan)的(de)傳(chuan)(chuan)(chuan)(chuan)熱(re)量(liang)？y效的(de)方(fang)法之一就是在銅(tong)鋁復(fu)合(he)翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)管(guan)(guan)子外(wai)表(biao)面(mian)即煙氣(qi)側采(cai)用擴(kuo)展表(biao)面(mian)，假定銅(tong)鋁復(fu)合(he)翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)的(de)實際傳(chuan)(chuan)(chuan)(chuan)熱(re)面(mian)積(ji)(ji)為(wei)原來的(de)光(guang)管(guan)(guan)外(wai)表(biao)面(mian)積(ji)(ji)的(de)若干倍，銅(tong)鋁復(fu)合(he)翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)雖(sui)然煙氣(qi)的(de)換熱(re)系數仍然很低，但反映在光(guang)管(guan)(guan)外(wai)表(biao)面(mian)積(ji)(ji)上的(de)傳(chuan)(chuan)(chuan)(chuan)熱(re)效果將大(da)大(da)增(zeng)加，從而使(shi)整個傳(chuan)(chuan)(chuan)(chuan)熱(re)過(guo)程增(zeng)強，在總(zong)傳(chuan)(chuan)(chuan)(chuan)熱(re)量(liang)一定的(de)情況(kuang)下，使(shi)設備的(de)金屬耗(hao)量(liang)減小，翅(chi)(chi)(chi)片(pian)(pian)(pian)管(guan)(guan)的(de)傳(chuan)(chuan)(chuan)(chuan)熱(re)原理經(jing)濟性提高。

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