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換熱類

板式換熱器

 時間:2019-9-25 10:23:53

 

板式換(huan)熱(re)器(qi)是由一(yi)系列具(ju)有一(yi)定波紋形狀的金屬片(pian)疊裝而成的一(yi)種新型高效換(huan)熱(re)器(qi)。各種板片(pian)之(zhi)間形成薄矩形通道,通過(guo)板片(pian)進(jin)行交換。板式換熱器是液—液、液—汽進行熱交換的理想設備。它具有換熱效率高、熱損失小、結構緊湊輕巧、占地面積小、安裝清洗方便、應用廣泛、使用壽命長等特點。在壓力損失情況下,其傳熱系數比列管式換熱器高3-5倍,占地面積為的三分之一,熱回收率可高達90%以上。

板式換熱器的(de)型式主要有框架(jia)式(可拆卸式)和式兩大(da)類,板片(pian)形(xing)式主要(yao)有人(ren)字(zi)形(xing)波紋(wen)板、水(shui)平平直(zhi)波紋(wen)板和(he)瘤形(xing)板片(pian)三種。

可拆卸(xie)式板(ban)(ban)(ban)式換熱器(qi)是由(you)(you)許多(duo)換熱板(ban)(ban)(ban)片(pian)(pian),按(an)一定間(jian)(jian)隔四周通(tong)過密(mi)封墊(dian)(dian)片(pian)(pian)密(mi)封,并用夾緊(jin)螺柱(zhu)壓緊(jin)而成,其角上的(de)孔構成了連續的(de)通(tong)道(dao)(dao),介(jie)質(zhi)(zhi)從入(ru)口進入(ru)通(tong)道(dao)(dao),并被分配到(dao)換熱板(ban)(ban)(ban)片(pian)(pian)之(zhi)間(jian)(jian)的(de)流道(dao)(dao)內,每張板(ban)(ban)(ban)片(pian)(pian)都(dou)有密(mi)封墊(dian)(dian)片(pian)(pian),板(ban)(ban)(ban)與板(ban)(ban)(ban)之(zhi)間(jian)(jian)的(de)位置是交(jiao)替放置,兩(liang)種流體,分別進入(ru)各(ge)自通(tong)道(dao)(dao),由(you)(you)板(ban)(ban)(ban)片(pian)(pian)隔開,一般情況(kuang)下,兩(liang)種介(jie)質(zhi)(zhi)在通(tong)道(dao)(dao)內逆(ni)流流動,熱介(jie)質(zhi)(zhi)將熱能傳遞(di)給(gei)板(ban)(ban)(ban)片(pian)(pian),板(ban)(ban)(ban)片(pian)(pian)又(you)將熱能傳遞(di)給(gei)另一側(ce)的(de)冷(leng)介(jie)質(zhi)(zhi),從而達到(dao)熱介(jie)質(zhi)(zhi)溫度降低被冷(leng)卻(que),冷(leng)介(jie)質(zhi)(zhi)溫度升(sheng)高得到(dao)加熱的(de)目的(de)。

二、產(chan)品特點:

1、傳熱效率高,是管殼式的3-5倍;

2、結構(gou)緊湊(cou),占(zhan)地面積小,節省投資,重(zhong)量輕,易(yi)維護;

3、拆洗(xi)方便,容易清洗(xi);

4、熱量損失小,阻力損失少;

5、使用(yong)壽命長,可(ke)耐各種腐蝕介質,膠墊(dian)可(ke)隨意更(geng)換。