板(ban)式(shi)換(huan)熱(re)器簡介：

板(ban)式換(huan)熱器是由(you)框(kuang)架、傳(chuan)熱板(ban)片組及夾(jia)緊螺栓等主要部件組成。

框架(jia)包括(kuo)一(yi)個(ge)固(gu)(gu)定(ding)壓(ya)緊(jin)(jin)板和(he)一(yi)個(ge)活(huo)動(dong)壓(ya)緊(jin)(jin)板，由上(shang)(shang)導(dao)桿(gan)與下導(dao)桿(gan)支承，在另‘端有一(yi)支柱。壓(ya)制成的(de)(de)(de)波紋(wen)(wen)板片(pian)懸掛在兩板之間的(de)(de)(de)上(shang)(shang)導(dao)桿(gan)上(shang)(shang)，移動(dong)活(huo)動(dong)壓(ya)緊(jin)(jin)板將(jiang)(jiang)板片(pian)組壓(ya)緊(jin)(jin)，再(zai)用(yong)一(yi)組夾緊(jin)(jin)螺柱將(jiang)(jiang)固(gu)(gu)定(ding)壓(ya)緊(jin)(jin)板和(he)活(huo)動(dong)壓(ya)緊(jin)(jin)板夾緊(jin)(jin)至一(yi)定(ding)尺(chi)寸。兩種(zhong)介質經固(gu)(gu)定(ding)(或活(huo)動(dong))壓(ya)緊(jin)(jin)板上(shang)(shang)法(fa)蘭孔(kong)流入由波紋(wen)(wen)板片(pian)組成的(de)(de)(de)各自(zi)通(tong)道，熱交換后介質再(zai)由固(gu)(gu)定(ding)(或活(huo)動(dong))壓(ya)緊(jin)(jin)板上(shang)(shang)的(de)(de)(de)法(fa)蘭孔(kong)流出。同定(ding)壓(ya)緊(jin)(jin)板、活(huo)動(dong)壓(ya)緊(jin)(jin)板、支柱及導(dao)桿(gan)均為低碳鋼。考慮到用(yong)戶的(de)(de)(de)多種(zhong)使用(yong)要求，框架(jia)設計有多種(zhong)型式，主要有雙支撐(cheng)框架(jia)式和(he)常用(yong)的(de)(de)(de)落地式等，也可根據用(yong)戶的(de)(de)(de)要求更改(gai)框架(jia)的(de)(de)(de)型式。

傳熱(re)(re)(re)(re)板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)是板(ban)(ban)(ban)(ban)(ban)式換熱(re)(re)(re)(re)器的(de)(de)核心(xin)部(bu)件之一(yi)。波(bo)紋(wen)(wen)板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)通過一(yi)次壓制成型，合理的(de)(de)波(bo)紋(wen)(wen)設計增加了板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)有效傳熱(re)(re)(re)(re)面(mian)積，使流(liu)(liu)(liu)體(ti)順(shun)波(bo)紋(wen)(wen)通過時(shi)形成湍流(liu)(liu)(liu)，強化了傳熱(re)(re)(re)(re)過程。裝配時(shi)波(bo)紋(wen)(wen)與波(bo)紋(wen)(wen)相(xiang)交成大量接觸抗點，大大提高了板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)組的(de)(de)剛度(du)，因此能承受較高的(de)(de)壓力。每塊板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)作為一(yi)個(ge)(ge)傳熱(re)(re)(re)(re)面(mian)，在(zai)密(mi)封墊的(de)(de)作用下，板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)的(de)(de)兩(liang)側分(fen)別有冷(leng)熱(re)(re)(re)(re)介(jie)(jie)(jie)(jie)質通過，進行換熱(re)(re)(re)(re)。板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)上有四(si)個(ge)(ge)分(fen)配液體(ti)的(de)(de)孑L，孑L及板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)四(si)周裝有密(mi)封墊片(pian)(pian)，限制介(jie)(jie)(jie)(jie)質在(zai)板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)組內流(liu)(liu)(liu)動(dong)，各板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)形成平行的(de)(de)通道(dao)，流(liu)(liu)(liu)經里面(mian)的(de)(de)兩(liang)種(zhong)介(jie)(jie)(jie)(jie)質，作更(geng)佳換熱(re)(re)(re)(re)效果的(de)(de)方向流(liu)(liu)(liu)動(dong)，為適應多種(zhong)腐(fu)蝕性較強的(de)(de)介(jie)(jie)(jie)(jie)質，波(bo)紋(wen)(wen)板(ban)(ban)(ban)(ban)(ban)片(pian)(pian)材(cai)料有：工業純鈦TAl，用于海水或其它腐(fu)蝕性介(jie)(jie)(jie)(jie)質；多種(zhong)不銹鋼，用于淡水、飲用水、油類及其它非腐(fu)蝕性介(jie)(jie)(jie)(jie)質。

在(zai)波紋板片的(de)密(mi)封(feng)槽上裝有密(mi)封(feng)墊片，密(mi)封(feng)墊片設計成雙道(dao)密(mi)封(feng)結構，并且有信(xin)號(hao)孔。當介質如從道(dao)密(mi)封(feng)泄露(lu)時(shi)，可從信(xin)號(hao)孑L泄出設備之外(wai)，便(bian)能及早發現問題加(jia)以解決，不會造成兩種介質的(de)混(hun)合。密(mi)封(feng)墊片可根(gen)據不同(tong)的(de)流體和操作溫度選用(yong)不同(tong)的(de)膠種。

板式換熱器的技術(shu)優(you)勢和(he)特點：

1、傳(chuan)熱(re)系數高：傳(chuan)熱(re)板(ban)片上的特殊波紋設計(ji)，可(ke)(ke)使流體在極(ji)低的流速下產生強烈的湍流，湍流的自凈(jing)效應又可(ke)(ke)防止污垢(gou)的產生，使得板(ban)式(shi)換(huan)熱(re)器的傳(chuan)熱(re)系數為管殼(ke)式(shi)換(huan)熱(re)器的3-5倍。

2、經濟性：相同(tong)換熱量的前提(ti)下，與管殼(ke)式(shi)比較：投資(zi)少、運行費用低、維修費用低。

3、可調整性：只需增加(jia)和減少(shao)板片即(ji)可滿(man)足工(gong)藝(yi)過程改變(bian)的(de)需求。

4、結構(gou)緊湊：在相同換熱量的(de)(de)前(qian)提下，占用空(kong)間僅為(wei)管殼式的(de)(de)1／2一(yi)l／3。

5、易于潔洗(xi)維(wei)修(xiu)。