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管殼式換熱器是石油化工行業的重要設備,陜西生活熱水設備哪家好它的腐蝕及保護對設備的長周期運行有著重要的意義;由于近年來加工原油中的硫、酸及雜質含量越來越高,對煉油換熱設備的防腐蝕性能及材料的選擇提出了更高的要求。文章對采用專用涂料與犧牲陽極綜合保護法進行了闡述,該方法工藝方案和特點是:管殼式換熱器的工藝方案和特點是什么表面處理要徹底,合理選取保護電流密度,按設計要求確定陽極塊,控制好濕度和溫度,涂料施工嚴格按照SHY-99涂料工藝進行,確保綜合防護的效果。生活熱水設備目前國(guo)內(nei)石油、化纖、冶(ye)金、發電等企業的(de)冷換器(qi)(qi)設備經常由于水(shui)垢、腐蝕產物和腐蝕物黏(nian)泥造成冷換器(qi)(qi)堵塞,致傳熱(re)系(xi)數(shu)下降,是冷卻水(shui)系(xi)統中(zhong)常見的(de)問(wen)題。由于碳(tan)酸鹽垢的(de)導熱(re)系(xi)數(shu)只有(you)碳(tan)鋼的(de)1%左(zuo)右,直(zhi)接影響(xiang)到了換熱(re)效率,增加(jia)了系(xi)統的(de)壓力降。
封閉(bi)(bi)(bi)式(shi)(shi)冷(leng)(leng)卻(que)(que)(que)(que)塔(ta)和(he)管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)同屬(shu)于水換(huan)(huan)(huan)熱(re)冷(leng)(leng)卻(que)(que)(que)(que)裝(zhuang)置,有著(zhu)本質的(de)區別。閉(bi)(bi)(bi)式(shi)(shi)冷(leng)(leng)卻(que)(que)(que)(que)塔(ta)除了(le)熱(re)交(jiao)換(huan)(huan)(huan)的(de)過(guo)(guo)程(cheng),可以直接蒸發吸熱(re),將熱(re)量(liang)排走,而管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)只能換(huan)(huan)(huan)熱(re),使用過(guo)(guo)程(cheng)中(zhong)還需要另外的(de)設備進(jin)行排熱(re)。今(jin)天小(xiao)衛給(gei)大家(jia)詳細介紹一(yi)下管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)和(he)閉(bi)(bi)(bi)式(shi)(shi)冷(leng)(leng)卻(que)(que)(que)(que)塔(ta)有著(zhu)哪(na)些不同之處,在現(xian)實(shi)使用過(guo)(guo)程(cheng)中(zhong)閉(bi)(bi)(bi)式(shi)(shi)冷(leng)(leng)卻(que)(que)(que)(que)塔(ta)替代管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)已成趨一(yi)、封閉(bi)(bi)(bi)式(shi)(shi)冷(leng)(leng)卻(que)(que)(que)(que)塔(ta)管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)概(gai)念及結構(gou)管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)(shell and tube heat exchanger)又(you)稱列管(guan)(guan)(guan)(guan)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)。是以封閉(bi)(bi)(bi)在殼(ke)(ke)(ke)(ke)體中(zhong)管(guan)(guan)(guan)(guan)束的(de)壁(bi)面作為傳熱(re)面的(de)間(jian)壁(bi)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)。這(zhe)種(zhong)換(huan)(huan)(huan)熱(re)器(qi)(qi)結構(gou)較(jiao)簡單,操作 ,可用各種(zhong)結構(gou)材(cai)料(主要是金(jin)屬(shu)材(cai)料)制造,能在高管(guan)(guan)(guan)(guan)殼(ke)(ke)(ke)(ke)式(shi)(shi)換(huan)(huan)(huan)熱(re)器(qi)(qi)由殼(ke)(ke)(ke)(ke)體、傳熱(re)管(guan)(guan)(guan)(guan)束、管(guan)(guan)(guan)(guan)板、折流板(擋(dang)板)和(he)管(guan)(guan)(guan)(guan)箱等(deng)部件組(zu)成。殼(ke)(ke)(ke)(ke)體多(duo)為圓筒形,內部裝(zhuang)有管(guan)(guan)(guan)(guan)束,管(guan)(guan)(guan)(guan)束兩(liang)端固定在管(guan)(guan)(guan)(guan)板上。
1.主(zhu)換(huan)熱(re)(re)器(qi)(qi)(qi)熱(re)(re)端(duan)溫(wen)差(cha)偏大景(jing)象某(mou)廠(chang)12000m3爪空(kong)(kong)(kong)分設備接(jie)納分子篩(shai)吸附凈化、增壓(ya)透平膨(peng)大、規整(zheng)填(tian)料上塔(ta)及全精餾(liu)無氫制氮外壓(ya) 縮流程(cheng)。自空(kong)(kong)(kong)分設備開車以來(lai),用戶不斷反應主(zhu)換(huan)熱(re)(re)器(qi)(qi)(qi)熱(re)(re)端(duan)溫(wen)差(cha)過(guo)(guo)大,此中(zhong)一(yi)組換(huan)熱(re)(re)器(qi)(qi)(qi)有7℃一(yi)8℃的溫(wen) 差(cha)。通(tong)過(guo)(guo)種(zhong)種(zhong)調理(li)(li)花招(zhao),液體(ti)產量(liang)仍達不到條(tiao)約(yue)要(yao)求(qiu)的計劃(hua)值(zhi)。檢查(cha)空(kong)(kong)(kong)分設備流程(cheng)圖(tu)和精餾(liu)塔(ta)總(zong)圖(tu)發明,6臺主(zhu)換(huan)熱(re)(re)器(qi)(qi)(qi)(El一(yi)E6)分兩(liang)組散(san)布(bu),分子篩(shai)吸附器(qi)(qi)(qi)出(chu)(chu)口(kou)空(kong)(kong)(kong) 氣通(tong)過(guo)(guo)正(zheng)流空(kong)(kong)(kong)氣閥Vln和vllZ分別進人El一(yi)E3和E4一(yi)E6兩(liang)組換(huan)熱(re)(re)器(qi)(qi)(qi)。兩(liang)組換(huan)熱(re)(re)器(qi)(qi)(qi)之(zhi)(zhi)間的熱(re)(re)端(duan)溫(wen)差(cha)可哄騙 v川和vllZ閥來(lai)調理(li)(li),每組內3個單位(wei)之(zhi)(zhi)間靠冷箱內配(pei)管來(lai)平衡氣流的散(san)布(bu)。增壓(ya)空(kong)(kong)(kong)氣出(chu)(chu)主(zhu)換(huan)熱(re)(re)器(qi)(qi)(qi)各單位(wei) 有中(zhong)部(bu)(bu)、底(di)(di)部(bu)(bu)兩(liang)個抽口(kou),進膨(peng)大機的空(kong)(kong)(kong)氣溫(wen)度(du)由中(zhong)部(bu)(bu)抽口(kou)總(zong)管閥V31和底(di)(di)部(bu)(bu)抽口(kou)總(zong)管閥V犯來(lai)調理(li)(li)。返(fan)流 氣體(ti)只(zhi)要(yao)通(tong)過(guo)(guo)各自總(zong)管上的調理(li)(li)閥來(lai)調理(li)(li)流量(liang)。
容(rong)(rong)積式換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器也(ye)叫壓力容(rong)(rong)器,屬(shu)于(yu)承壓設(she)(she)(she)備。企業要有壓力容(rong)(rong)器生(sheng)產許(xu)可證(zheng)才能(neng)生(sheng)產。更加屬(shu)于(yu)當(dang)地的(de)鍋檢部門監管(guan)(guan)的(de)范疇,它(ta)主要由筒體、蒸汽盤(pan)管(guan)(guan)或管(guan)(guan)束組(zu)(zu)件,蒸汽進出口、冷(leng)熱(re)(re)(re)(re)水(shui)(shui)進出口等組(zu)(zu)成(cheng)。容(rong)(rong)積式換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器是經過機電部華東測試中(zhong)心(xin)站的(de)熱(re)(re)(re)(re)力性能(neng)測定,從建筑部建筑設(she)(she)(she)計總院(yuan)引進的(de)新型換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器,容(rong)(rong)積式換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器具有貯水(shui)(shui)量(liang)大,換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)出水(shui)(shui)溫度(du)穩定的(de)特點,廣泛應用(yong)(yong)于(yu)生(sheng)活用(yong)(yong)水(shui)(shui)和洗(xi)澡水(shui)(shui)。容(rong)(rong)積式換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器主要的(de)組(zu)(zu)成(cheng)部分有哪(na)些它(ta)是在利用(yong)(yong)“RV-02”雙管(guan)(guan)束容(rong)(rong)積式換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)器系列(lie)的(de)成(cheng)功(gong)經驗后,克(ke)服(fu)老(lao)產品(pin)(pin)耗鋼量(liang)大、對設(she)(she)(she)備用(yong)(yong)房要求高及品(pin)(pin)種規格少、選(xuan)用(yong)(yong)局限(xian)性大等缺點,其(qi)熱(re)(re)(re)(re)力性能(neng)遠超(chao)過其(qi)它(ta)同類產品(pin)(pin),是目前熱(re)(re)(re)(re)水(shui)(shui)用(yong)(yong)水(shui)(shui)單(dan)位理(li)想和明智(zhi)的(de)換(huan)(huan)(huan)(huan)熱(re)(re)(re)(re)設(she)(she)(she)備。
管(guan)殼(ke)(ke)式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)(shell and tube heat exchanger)又稱列管(guan)式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)。管(guan)殼(ke)(ke)式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)是以封(feng)閉在(zai)(zai)殼(ke)(ke)體(ti)中管(guan)束(shu)(shu)的壁面作(zuo)為傳(chuan)熱(re)(re)(re)面的間壁式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)。這種換熱(re)(re)(re)器(qi)(qi)結(jie)構較簡單,操(cao)作(zuo)可靠,可用(yong)各種結(jie)構材(cai)料(liao)(主要是金屬(shu)材(cai)料(liao))制(zhi)造,能在(zai)(zai)高(gao)溫(wen)、高(gao)壓下(xia)使用(yong),是目前應用(yong)廣的類型。管(guan)殼(ke)(ke)式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)是怎樣運行的管(guan)殼(ke)(ke)式(shi)(shi)換熱(re)(re)(re)器(qi)(qi)由殼(ke)(ke)體(ti)、傳(chuan)熱(re)(re)(re)管(guan)束(shu)(shu)、管(guan)板(ban)、折流(liu)(liu)板(ban)(擋板(ban))和管(guan)箱等部(bu)件組成。殼(ke)(ke)體(ti)多為圓(yuan)筒形,內部(bu)裝有管(guan)束(shu)(shu),管(guan)束(shu)(shu)兩端(duan)固(gu)定(ding)在(zai)(zai)管(guan)板(ban)上。進行換熱(re)(re)(re)的冷熱(re)(re)(re)兩種流(liu)(liu)體(ti),一種在(zai)(zai)管(guan)內流(liu)(liu)動(dong),稱為管(guan)程流(liu)(liu)體(ti);另(ling)一種在(zai)(zai)管(guan)外流(liu)(liu)動(dong),稱為殼(ke)(ke)程流(liu)(liu)體(ti)。