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容積式換熱器是使用的非常廣泛的一種換熱器,它主要由器體、蒸汽盤管組件,蒸汽進出口、冷熱水進出口等組成,容積式換熱器哪家好為防止器體內表面腐蝕,在表面上噴涂有一層防腐合金層,并在合金層上刷制有油漆層,另取消原有管箱,蒸汽盤管通過法蘭直接外接,從而使本實用新型具有結構簡單合理、使用壽命長,換熱效果好,節能等特點。那么容積式換熱器怎么選擇?容積式換熱器的四大優點隨著時代的發展,科技的進步,容積式換熱器作為一種熱交換設備,廣泛應用于各行各業。優質容積式換熱器其(qi)中有一(yi)種(zhong)(zhong)是(shi)波紋管(guan)(guan)式換(huan)(huan)(huan)熱器,它一(yi)改傳統換(huan)(huan)(huan)熱器使(shi)用(yong)厚壁(bi)(bi)鋼管(guan)(guan)做(zuo)換(huan)(huan)(huan)熱管(guan)(guan),而采用(yong)薄壁(bi)(bi)不銹鋼管(guan)(guan)做(zuo)換(huan)(huan)(huan)熱管(guan)(guan),并利用(yong)特殊裝置在薄壁(bi)(bi)不銹鋼管(guan)(guan)上加工出(chu)波紋,使(shi)其(qi)成為一(yi)種(zhong)(zhong)沿換(huan)(huan)(huan)熱管(guan)(guan)軸線方向上其(qi)橫(heng)截面(mian)積呈周(zhou)期(qi)性變化。
管(guan)(guan)(guan)(guan)(guan)殼(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)(shell and tube heat exchanger)又稱(cheng)列(lie)管(guan)(guan)(guan)(guan)(guan)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)。管(guan)(guan)(guan)(guan)(guan)殼(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)是以封閉在(zai)(zai)殼(ke)體(ti)中管(guan)(guan)(guan)(guan)(guan)束的(de)(de)壁面作為(wei)(wei)傳(chuan)(chuan)熱(re)(re)(re)面的(de)(de)間壁式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)。這(zhe)種換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)結構較簡單,操作可靠,可用各種結構材料(主要是金屬材料)制造,能在(zai)(zai)高(gao)(gao)溫(wen)、高(gao)(gao)壓(ya)下使用,是目前應用廣(guang)的(de)(de)類(lei)型。管(guan)(guan)(guan)(guan)(guan)殼(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)是怎樣運行(xing)的(de)(de)管(guan)(guan)(guan)(guan)(guan)殼(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)(qi)由殼(ke)體(ti)、傳(chuan)(chuan)熱(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)束、管(guan)(guan)(guan)(guan)(guan)板(ban)、折流(liu)(liu)(liu)板(ban)(擋板(ban))和(he)管(guan)(guan)(guan)(guan)(guan)箱等(deng)部(bu)件組成。殼(ke)體(ti)多為(wei)(wei)圓筒形(xing),內部(bu)裝有(you)管(guan)(guan)(guan)(guan)(guan)束,管(guan)(guan)(guan)(guan)(guan)束兩端(duan)固(gu)定在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)板(ban)上。進行(xing)換(huan)(huan)(huan)熱(re)(re)(re)的(de)(de)冷熱(re)(re)(re)兩種流(liu)(liu)(liu)體(ti),一種在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)內流(liu)(liu)(liu)動,稱(cheng)為(wei)(wei)管(guan)(guan)(guan)(guan)(guan)程(cheng)(cheng)(cheng)流(liu)(liu)(liu)體(ti);另一種在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)外(wai)流(liu)(liu)(liu)動,稱(cheng)為(wei)(wei)殼(ke)程(cheng)(cheng)(cheng)流(liu)(liu)(liu)體(ti)。為(wei)(wei)提高(gao)(gao)管(guan)(guan)(guan)(guan)(guan)外(wai)流(liu)(liu)(liu)體(ti)的(de)(de)傳(chuan)(chuan)熱(re)(re)(re)分(fen)系數(shu),通常在(zai)(zai)殼(ke)體(ti)內安裝若(ruo)干擋板(ban)。擋板(ban)可提高(gao)(gao)殼(ke)程(cheng)(cheng)(cheng)流(liu)(liu)(liu)體(ti)速度(du)(du),迫(po)使流(liu)(liu)(liu)體(ti)按規定路(lu)程(cheng)(cheng)(cheng)多次橫向通過管(guan)(guan)(guan)(guan)(guan)束,增強流(liu)(liu)(liu)體(ti)湍流(liu)(liu)(liu)程(cheng)(cheng)(cheng)度(du)(du)。換(huan)(huan)(huan)熱(re)(re)(re)管(guan)(guan)(guan)(guan)(guan)在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)板(ban)上可按等(deng)邊三(san)角形(xing)或(huo)正(zheng)方形(xing)排列(lie)。等(deng)邊三(san)角形(xing)排列(lie)較緊湊(cou),管(guan)(guan)(guan)(guan)(guan)外(wai)流(liu)(liu)(liu)體(ti)湍動程(cheng)(cheng)(cheng)度(du)(du)高(gao)(gao),傳(chuan)(chuan)熱(re)(re)(re)分(fen)系數(shu)大;正(zheng)方形(xing)排列(lie)則管(guan)(guan)(guan)(guan)(guan)外(wai)清洗方便,適用于易結垢的(de)(de)流(liu)(liu)(liu)體(ti)。
誤區一(yi)、只(zhi)比(bi)較換(huan)熱面積(ji)(ji)好(hao)多(duo)用(yong)(yong)戶在詢價時(shi),只(zhi)向詢價單元提供換(huan)熱面積(ji)(ji),的(de)確不(bu)管(guan)哪品種(zhong)型(xing)的(de)容(rong)積(ji)(ji)式換(huan)熱器,管(guan)殼式換(huan)熱器面積(ji)(ji)相同的(de)狀(zhuang)況下,型(xing)號差別、結構(gou)構(gou)成差別、所用(yong)(yong)材質規(gui)格差別、流程組(zu)合差別,它們(men)的(de)價錢是不(bu)具有可比(bi)性的(de),并(bing)且(qie)在運(yun)用(yong)(yong)流程中所表(biao)示出(chu)來的(de)工(gong)作(zuo)功能(neng)(neng)也會(hui)有很(hen)大差異。誤區二、拿著(zhu)某一(yi)個(ge)廠家的(de)選(xuan)(xuan)型(xing)單詢價差別的(de)生產(chan)廠家,緣于本身的(de)加工(gong)才能(neng)(neng)、實際使用(yong)(yong)經(jing)歷 、引薦(jian)習(xi)氣等(deng)要(yao)素(su),往(wang)往(wang)對用(yong)(yong)戶的(de)某一(yi)運(yun)用(yong)(yong)要(yao)求(qiu)及工(gong)藝工(gong)況并(bing)不(bu)明白得十分透徹(che),計劃選(xuan)(xuan)型(xing)會(hui)出(chu)現偏頗。
1.主換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)熱(re)(re)端溫(wen)差(cha)偏大景象某廠12000m3爪空(kong)(kong)分(fen)(fen)設(she)備接納分(fen)(fen)子篩吸附凈化、增壓透平膨(peng)大、規整填料上(shang)塔及(ji)全精餾無氫制氮外(wai)壓 縮(suo)流(liu)程。自(zi)(zi)空(kong)(kong)分(fen)(fen)設(she)備開車以來,用戶不斷反應主換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)熱(re)(re)端溫(wen)差(cha)過(guo)大,此(ci)中(zhong)(zhong)(zhong)一組換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)有7℃一8℃的(de)(de)溫(wen) 差(cha)。通(tong)(tong)過(guo)種(zhong)種(zhong)調(diao)理(li)花招,液體產量仍達不到條約要求的(de)(de)計劃(hua)值(zhi)。檢查空(kong)(kong)分(fen)(fen)設(she)備流(liu)程圖(tu)和(he)精餾塔總(zong)(zong)圖(tu)發明,6臺主換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(El一E6)分(fen)(fen)兩(liang)組散布(bu),分(fen)(fen)子篩吸附器(qi)(qi)(qi)出(chu)口(kou)空(kong)(kong) 氣(qi)通(tong)(tong)過(guo)正(zheng)流(liu)空(kong)(kong)氣(qi)閥(fa)Vln和(he)vllZ分(fen)(fen)別進人El一E3和(he)E4一E6兩(liang)組換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)。兩(liang)組換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)之間的(de)(de)熱(re)(re)端溫(wen)差(cha)可哄騙 v川和(he)vllZ閥(fa)來調(diao)理(li),每組內3個(ge)單(dan)位之間靠冷箱內配管(guan)來平衡(heng)氣(qi)流(liu)的(de)(de)散布(bu)。增壓空(kong)(kong)氣(qi)出(chu)主換(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)各(ge)(ge)單(dan)位 有中(zhong)(zhong)(zhong)部、底部兩(liang)個(ge)抽(chou)口(kou),進膨(peng)大機的(de)(de)空(kong)(kong)氣(qi)溫(wen)度由中(zhong)(zhong)(zhong)部抽(chou)口(kou)總(zong)(zong)管(guan)閥(fa)V31和(he)底部抽(chou)口(kou)總(zong)(zong)管(guan)閥(fa)V犯來調(diao)理(li)。返流(liu) 氣(qi)體只要通(tong)(tong)過(guo)各(ge)(ge)自(zi)(zi)總(zong)(zong)管(guan)上(shang)的(de)(de)調(diao)理(li)閥(fa)來調(diao)理(li)流(liu)量。