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管(guan)(guan)(guan)(guan)殼(ke)(ke)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)(shell and tube heat exchanger)又(you)稱列(lie)管(guan)(guan)(guan)(guan)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)。管(guan)(guan)(guan)(guan)殼(ke)(ke)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)是(shi)以(yi)封(feng)閉在(zai)殼(ke)(ke)體(ti)(ti)(ti)中管(guan)(guan)(guan)(guan)束(shu)的壁(bi)面作為(wei)(wei)傳熱(re)(re)(re)(re)面的間壁(bi)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)。這種換(huan)熱(re)(re)(re)(re)器(qi)(qi)結構較簡單,操作可(ke)靠,可(ke)用各(ge)種結構材料(主要是(shi)金(jin)屬材料)制造,能在(zai)高溫、高壓下使(shi)用,是(shi)目前(qian)應用廣(guang)的類型。管(guan)(guan)(guan)(guan)殼(ke)(ke)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)是(shi)怎樣運行的管(guan)(guan)(guan)(guan)殼(ke)(ke)式(shi)換(huan)熱(re)(re)(re)(re)器(qi)(qi)由殼(ke)(ke)體(ti)(ti)(ti)、傳熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)束(shu)、管(guan)(guan)(guan)(guan)板、折(zhe)流(liu)(liu)(liu)(liu)(liu)板(擋板)和(he)管(guan)(guan)(guan)(guan)箱等(deng)(deng)部(bu)件組成。殼(ke)(ke)體(ti)(ti)(ti)多(duo)為(wei)(wei)圓筒形(xing),內部(bu)裝有管(guan)(guan)(guan)(guan)束(shu),管(guan)(guan)(guan)(guan)束(shu)兩(liang)(liang)端固定在(zai)管(guan)(guan)(guan)(guan)板上。進行換(huan)熱(re)(re)(re)(re)的冷熱(re)(re)(re)(re)兩(liang)(liang)種流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti),一(yi)種在(zai)管(guan)(guan)(guan)(guan)內流(liu)(liu)(liu)(liu)(liu)動,稱為(wei)(wei)管(guan)(guan)(guan)(guan)程(cheng)(cheng)流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti);另(ling)一(yi)種在(zai)管(guan)(guan)(guan)(guan)外流(liu)(liu)(liu)(liu)(liu)動,稱為(wei)(wei)殼(ke)(ke)程(cheng)(cheng)流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)。為(wei)(wei)提(ti)高管(guan)(guan)(guan)(guan)外流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)的傳熱(re)(re)(re)(re)分系數,通常(chang)在(zai)殼(ke)(ke)體(ti)(ti)(ti)內安(an)裝若(ruo)干擋板。擋板可(ke)提(ti)高殼(ke)(ke)程(cheng)(cheng)流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)速(su)度(du),迫使(shi)流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)按規定路程(cheng)(cheng)多(duo)次橫向通過管(guan)(guan)(guan)(guan)束(shu),增強流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)湍(tuan)流(liu)(liu)(liu)(liu)(liu)程(cheng)(cheng)度(du)。換(huan)熱(re)(re)(re)(re)管(guan)(guan)(guan)(guan)在(zai)管(guan)(guan)(guan)(guan)板上可(ke)按等(deng)(deng)邊三(san)角形(xing)或(huo)正方形(xing)排列(lie)。等(deng)(deng)邊三(san)角形(xing)排列(lie)較緊湊,管(guan)(guan)(guan)(guan)外流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)湍(tuan)動程(cheng)(cheng)度(du)高,傳熱(re)(re)(re)(re)分系數大;正方形(xing)排列(lie)則管(guan)(guan)(guan)(guan)外清(qing)洗方便,適用于易結垢的流(liu)(liu)(liu)(liu)(liu)體(ti)(ti)(ti)。
封閉式冷卻塔和管殼式換熱器同屬于水換熱冷卻裝置,有著本質的區別。閉式冷卻塔除了熱交換的過程,可以直接蒸發吸熱,板式熱交換器將熱量排走,而管殼式換熱器只能換熱,使用過程中還需要另外的設備進行排熱。板式熱交換器廠家今(jin)天小衛(wei)給大家詳細(xi)介紹一下管(guan)(guan)(guan)殼式換(huan)(huan)熱(re)器(qi)(qi)(qi)和(he)閉(bi)式冷(leng)(leng)卻塔(ta)有(you)著哪些不同之處,在(zai)(zai)現實使用過程(cheng)中(zhong)閉(bi)式冷(leng)(leng)卻塔(ta)替代管(guan)(guan)(guan)殼式換(huan)(huan)熱(re)器(qi)(qi)(qi)已成趨一、封(feng)閉(bi)式冷(leng)(leng)卻塔(ta)管(guan)(guan)(guan)殼式換(huan)(huan)熱(re)器(qi)(qi)(qi)概念及結(jie)(jie)構管(guan)(guan)(guan)殼式換(huan)(huan)熱(re)器(qi)(qi)(qi)(shell and tube heat exchanger)又稱列管(guan)(guan)(guan)式換(huan)(huan)熱(re)器(qi)(qi)(qi)。是(shi)以封(feng)閉(bi)在(zai)(zai)殼體中(zhong)管(guan)(guan)(guan)束(shu)的壁(bi)面(mian)作(zuo)為傳(chuan)熱(re)面(mian)的間壁(bi)式換(huan)(huan)熱(re)器(qi)(qi)(qi)。這種換(huan)(huan)熱(re)器(qi)(qi)(qi)結(jie)(jie)構較簡(jian)單,操作(zuo) ,可用各種結(jie)(jie)構材(cai)料(主要是(shi)金屬材(cai)料)制造,能在(zai)(zai)高管(guan)(guan)(guan)殼式換(huan)(huan)熱(re)器(qi)(qi)(qi)由殼體、傳(chuan)熱(re)管(guan)(guan)(guan)束(shu)、管(guan)(guan)(guan)板(ban)、折流板(ban)(擋板(ban))和(he)管(guan)(guan)(guan)箱等部件(jian)組成。殼體多為圓筒形(xing),內部裝有(you)管(guan)(guan)(guan)束(shu),管(guan)(guan)(guan)束(shu)兩端固定在(zai)(zai)管(guan)(guan)(guan)板(ban)上。
傳(chuan)熱(re)效(xiao)率(lv)(lv)高(性能(neng)好)一般認(ren)為(wei)螺旋(xuan)板式(shi)換(huan)熱(re)器(qi)(qi)的(de)(de)(de)(de)傳(chuan)熱(re)效(xiao)率(lv)(lv)為(wei)列管式(shi)換(huan)熱(re)器(qi)(qi)的(de)(de)(de)(de)1-3倍.等(deng)截面單(dan)通道(dao)(dao)(dao)不(bu)存在流(liu)(liu)動(dong)(dong)死(si)區(qu),定距柱及(ji)螺旋(xuan)通道(dao)(dao)(dao)對流(liu)(liu)動(dong)(dong)的(de)(de)(de)(de)擾動(dong)(dong)降低了流(liu)(liu)體的(de)(de)(de)(de)臨界雷諾數(shu),水(shui)(shui)水(shui)(shui)換(huan)熱(re)時(shi)螺旋(xuan)板式(shi)換(huan)熱(re)器(qi)(qi)的(de)(de)(de)(de)傳(chuan)熱(re)系數(shu)大(da)可(ke)達3000W/(㎡.K). 有(you)效(xiao)回收(shou)低溫熱(re)能(neng)螺旋(xuan)板式(shi)換(huan)熱(re)器(qi)(qi)由兩(liang)(liang)張卷制而成,形成了兩(liang)(liang)個(ge)均(jun)勻的(de)(de)(de)(de)螺旋(xuan)通道(dao)(dao)(dao),兩(liang)(liang)種傳(chuan)熱(re)介質可(ke)進行(xing)全逆流(liu)(liu)流(liu)(liu)動(dong)(dong),大(da)大(da)增強(qiang)了換(huan)熱(re)效(xiao)果,即(ji)使(shi)兩(liang)(liang)種小(xiao)溫差介質 換(huan)熱(re)器(qi)(qi)盤管哪家(jia)好,也能(neng)達到理(li)想的(de)(de)(de)(de)換(huan)熱(re)效(xiao)果,進行(xing)余熱(re)回收(shou),充(chong)分利用低溫熱(re)能(neng).運行(xing)可(ke)靠(kao)性強(qiang)不(bu)可(ke)拆式(shi)螺旋(xuan)板式(shi)換(huan)熱(re)器(qi)(qi)螺旋(xuan)通道(dao)(dao)(dao)的(de)(de)(de)(de)端(duan)面采用焊接密(mi)封,因而具有(you)較(jiao)高的(de)(de)(de)(de)密(mi)封性,保證兩(liang)(liang)種工作(zuo)介質不(bu)混合(he).阻力小(xiao)在殼體上的(de)(de)(de)(de)接管采用切向結構(gou),局(ju)部阻力小(xiao),由于螺旋(xuan)通道(dao)(dao)(dao)的(de)(de)(de)(de)曲率(lv)(lv)是均(jun)勻的(de)(de)(de)(de),液體在設備內流(liu)(liu)動(dong)(dong)沒(mei)有(you)大(da)的(de)(de)(de)(de)轉向,總的(de)(de)(de)(de)阻力小(xiao),因而可(ke)提高設計流(liu)(liu)速使(shi)之具備較(jiao)高的(de)(de)(de)(de)傳(chuan)熱(re)能(neng)力.
隨著(zhu)社會不(bu)斷(duan)的(de)進(jin)展,容積式(shi)換熱(re)(re)器(qi)(qi)逐漸(jian)走進(jin)我們(men)的(de)生活,它(ta)(ta)是(shi)不(bu)僅(jin)可(ke)以(yi)進(jin)行熱(re)(re)量交(jiao)(jiao)換,而(er)(er)且(qie)使(shi)用年限較(jiao)長,通(tong)常適用于(yu)(yu)(yu)工業及(ji)民(min)用建筑的(de)熱(re)(re)水供應(ying)系統(tong)(tong),關(guan)于(yu)(yu)(yu)它(ta)(ta)的(de)知識還有哪些是(shi)我們(men)不(bu)知道的(de)呢?下面就和小編(bian)一(yi)起看(kan)看(kan)吧。以(yi)下關(guan)于(yu)(yu)(yu)“容積式(shi)換熱(re)(re)器(qi)(qi)發生問(wen)題的(de)原(yuan)因(yin)及(ji)其產(chan)(chan)品知識的(de)相關(guan)說明”的(de)介紹。一(yi)、產(chan)(chan)品簡介:與傳統(tong)(tong)固定盤(pan)管(guan)相比較(jiao),浮動(dong)(dong)盤(pan)管(guan)能(neng)(neng)(neng)上下輕(qing)微(wei)浮動(dong)(dong),產(chan)(chan)生高頻振動(dong)(dong),形(xing)成良好紊流傳熱(re)(re)狀態,并且(qie)它(ta)(ta)能(neng)(neng)(neng)借助通(tong)過高溫(wen)熱(re)(re)媒的(de)薄壁銅管(guan)管(guan)壁與管(guan)外壁結(jie)垢(gou)層膨脹量的(de)差異,在一(yi)定條(tiao)件下,使(shi)水垢(gou)自動(dong)(dong)脫(tuo)落(luo)。通(tong)用換熱(re)(re)器(qi)(qi)一(yi)般需(xu)要配置水水熱(re)(re)交(jiao)(jiao)換器(qi)(qi)來降低(di)蒸汽(qi)凝結(jie)水溫(wen)度(du)以(yi)便回用,而(er)(er)此(ci)類(lei)節能(neng)(neng)(neng)型熱(re)(re)交(jiao)(jiao)換器(qi)(qi)凝結(jie)水出水溫(wen)度(du)在45攝適度(du)左右(you),可(ke)直接回鍋爐房重復使(shi)用。
鈦(tai)(tai)熱(re)(re)(re)交換(huan)(huan)器(qi)特點:鈦(tai)(tai)換(huan)(huan)熱(re)(re)(re)器(qi)因金屬離子不易流失、所(suo)以可充分(fen)利用(yong)(yong)這(zhe)種(zhong)非磁性(xing)特點,用(yong)(yong)做制藥及食(shi)品(pin)等用(yong)(yong)途的換(huan)(huan)熱(re)(re)(re)器(qi)。由(you)于鈦(tai)(tai)的抗腐蝕能力(li)強、所(suo)以器(qi)換(huan)(huan)熱(re)(re)(re)器(qi)的使用(yong)(yong)壽命長(chang)、并且在(zai)使用(yong)(yong)中維護費用(yong)(yong)也少(shao)。此外、因其具有體積小、換(huan)(huan)熱(re)(re)(re)能力(li)大等優點、相關設備(如泵)的投資及運(yun)行(xing)費用(yong)(yong)也能相應(ying)減少(shao)鈦(tai)(tai)熱(re)(re)(re)交換(huan)(huan)器(qi)應(ying)用(yong)(yong)范(fan)圍:鈦(tai)(tai)換(huan)(huan)熱(re)(re)(re)器(qi)憑借(jie)工業(ye)純鈦(tai)(tai)的各種(zhong)優良性(xing)質,廣泛應(ying)用(yong)(yong)于各類海(hai)鮮養殖,海(hai)水換(huan)(huan)熱(re)(re)(re),鹽水換(huan)(huan)熱(re)(re)(re),化工,食(shi)品(pin),醫(yi)藥,冶金,制冷,輕工,電鍍行(xing)業(ye)、鋁氧化槽、制鹽、造(zao)紙、超聲(sheng)波、電子通訊、集中供(gong)熱(re)(re)(re)等行(xing)業(ye)和領域。