換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)是(shi)一(yi)種比較(jiao)常見的(de)(de)(de)工業設備(bei)(bei)，能夠將熱(re)(re)(re)(re)(re)(re)流體(ti)設備(bei)(bei)的(de)(de)(de)一(yi)部分熱(re)(re)(re)(re)(re)(re)量傳(chuan)送到溫(wen)(wen)度相對(dui)(dui)較(jiao)低(di)的(de)(de)(de)設備(bei)(bei)中。根(gen)據(ju)不(bu)(bu)(bu)(bu)(bu)同(tong)標準分類(lei)，可以將換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)分成不(bu)(bu)(bu)(bu)(bu)同(tong)類(lei)別(bie)，不(bu)(bu)(bu)(bu)(bu)同(tong)類(lei)別(bie)的(de)(de)(de)換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)之(zhi)間是(shi)存(cun)在差異的(de)(de)(de)，有各自的(de)(de)(de)優(you)缺(que)點(dian)(dian)，適(shi)用(yong)(yong)(yong)的(de)(de)(de)場(chang)合(he)也(ye)不(bu)(bu)(bu)(bu)(bu)盡(jin)相同(tong)。以下就是(shi)關于不(bu)(bu)(bu)(bu)(bu)同(tong)換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)的(de)(de)(de)優(you)缺(que)點(dian)(dian)的(de)(de)(de)總結。不(bu)(bu)(bu)(bu)(bu)同(tong)換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)的(de)(de)(de)優(you)點(dian)(dian)和缺(que)點(dian)(dian)被加熱(re)(re)(re)(re)(re)(re)水(shui)(shui)(shui)通過(guo)罐體(ti)阻(zu)力損失小。結構簡單、管(guan)(guan)理方(fang)便(bian)，可承受(shou)水(shui)(shui)(shui)壓，噪音低(di)。換(huan)熱(re)(re)(re)(re)(re)(re)面積大(da)，換(huan)熱(re)(re)(re)(re)(re)(re)量高。供(gong)水(shui)(shui)(shui)水(shui)(shui)(shui)壓、水(shui)(shui)(shui)溫(wen)(wen)穩定、安全(quan)、節(jie)水(shui)(shui)(shui)、用(yong)(yong)(yong)水(shui)(shui)(shui)舒適(shi)。使用(yong)(yong)(yong)壽命長(chang)。缺(que)點(dian)(dian)：外形體(ti)積較(jiao)大(da)、換(huan)熱(re)(re)(re)(re)(re)(re)效率相對(dui)(dui)較(jiao)低(di)。殼(ke)程(cheng)清洗(xi)不(bu)(bu)(bu)(bu)(bu)方(fang)便(bian)。殼(ke)體(ti)與管(guan)(guan)子(zi)之(zhi)間無溫(wen)(wen)差補(bu)償元件時會產生較(jiao)大(da)的(de)(de)(de)溫(wen)(wen)差應(ying)力， 即(ji)溫(wen)(wen)差較(jiao)大(da)是(shi)需要采用(yong)(yong)(yong)膨脹節(jie)或波紋管(guan)(guan)等(deng)補(bu)償元件減小溫(wen)(wen)差應(ying)力。板式換(huan)熱(re)(re)(re)(re)(re)(re)器(qi)(qi)(qi)優(you)點(dian)(dian)：傳(chuan)熱(re)(re)(re)(re)(re)(re)效率高，對(dui)(dui)數溫(wen)(wen)差大(da)，重(zhong)量輕、占地面積小，清洗(xi)方(fang)便(bian)，而且容易(yi)改變換(huan) 熱(re)(re)(re)(re)(re)(re)面積或流程(cheng)組(zu)合(he)，適(shi)用(yong)(yong)(yong)于多重(zhong)介質換(huan)熱(re)(re)(re)(re)(re)(re)。

在檢修維護換熱器汽包時發現汽包封頭泄漏，在汽包封頭的閥蓋角焊縫處出現裂紋，裂紋平行于焊縫。采用宏觀形貌分析、化學成分分析、金相檢驗、顯微硬度測定、能譜分析以及應力分析等方法對泄漏處進行了分析。結果表明，汽包中水質含有較高濃度的堿性元素和氯、硫、氧等強腐蝕性元素，優質容積式熱交換器價格又在焊接殘余應力的作用下發生應力腐蝕開裂，最后導致汽包封頭產生泄漏。應力腐蝕；沿晶；堿脆；軋制帶狀組織某化工廠換熱器汽包于1996年投入使用，于2005年上半年維護檢修時發現滲漏。江蘇容積式熱交換器經去除外面(mian)保溫材料(liao)后，發(fa)現汽包(bao)封頭(tou)的蓋板角焊縫位置出現裂紋，裂紋為(wei)(wei)穿透型，起源于汽包(bao)封頭(tou)內(nei)表面(mian)，換熱器外形尺寸為(wei)(wei)1632mm9423mm，汽包(bao)封頭(tou)外形尺寸1632mm400mm，汽包(bao)封頭(tou)材料(liao)為(wei)(wei)16MnR鋼(gang)。

1.主(zhu)換(huan)熱(re)(re)器(qi)(qi)熱(re)(re)端(duan)溫差偏大(da)(da)景象某廠12000m3爪空(kong)(kong)(kong)分(fen)(fen)設備接納分(fen)(fen)子篩(shai)吸(xi)附凈化、增壓(ya)透平膨大(da)(da)、規整填料上塔及全精(jing)餾無氫制氮外壓(ya) 縮流(liu)程(cheng)。自空(kong)(kong)(kong)分(fen)(fen)設備開車以來(lai)，用戶不斷反應主(zhu)換(huan)熱(re)(re)器(qi)(qi)熱(re)(re)端(duan)溫差過大(da)(da)，此(ci)中(zhong)一(yi)組換(huan)熱(re)(re)器(qi)(qi)有(you)(you)7℃一(yi)8℃的(de)溫 差。通過種種調(diao)(diao)理(li)花招，液體產量仍達不到條(tiao)約要求的(de)計劃值。檢查空(kong)(kong)(kong)分(fen)(fen)設備流(liu)程(cheng)圖和(he)(he)精(jing)餾塔總(zong)圖發明，6臺主(zhu)換(huan)熱(re)(re)器(qi)(qi)(El一(yi)E6)分(fen)(fen)兩(liang)組散布，分(fen)(fen)子篩(shai)吸(xi)附器(qi)(qi)出口(kou)(kou)空(kong)(kong)(kong) 氣通過正(zheng)流(liu)空(kong)(kong)(kong)氣閥(fa)(fa)(fa)(fa)Vln和(he)(he)vllZ分(fen)(fen)別進(jin)人El一(yi)E3和(he)(he)E4一(yi)E6兩(liang)組換(huan)熱(re)(re)器(qi)(qi)。兩(liang)組換(huan)熱(re)(re)器(qi)(qi)之間(jian)的(de)熱(re)(re)端(duan)溫差可哄騙 v川和(he)(he)vllZ閥(fa)(fa)(fa)(fa)來(lai)調(diao)(diao)理(li)，每(mei)組內(nei)(nei)3個單位之間(jian)靠冷箱內(nei)(nei)配管(guan)來(lai)平衡氣流(liu)的(de)散布。增壓(ya)空(kong)(kong)(kong)氣出主(zhu)換(huan)熱(re)(re)器(qi)(qi)各(ge)單位 有(you)(you)中(zhong)部(bu)、底(di)部(bu)兩(liang)個抽口(kou)(kou)，進(jin)膨大(da)(da)機的(de)空(kong)(kong)(kong)氣溫度由中(zhong)部(bu)抽口(kou)(kou)總(zong)管(guan)閥(fa)(fa)(fa)(fa)V31和(he)(he)底(di)部(bu)抽口(kou)(kou)總(zong)管(guan)閥(fa)(fa)(fa)(fa)V犯來(lai)調(diao)(diao)理(li)。返流(liu) 氣體只要通過各(ge)自總(zong)管(guan)上的(de)調(diao)(diao)理(li)閥(fa)(fa)(fa)(fa)來(lai)調(diao)(diao)理(li)流(liu)量。

換(huan)(huan)熱器(qi)(qi)板(ban)(ban)(ban)片(pian)(pian)拆開(kai)前,應丈量板(ban)(ban)(ban)束的壓(ya)緊長(chang)度尺(chi)度,做好記錄(重裝時(shi)應按此尺(chi)度). b.密封墊(dian)(dian)片(pian)(pian)若粘在兩板(ban)(ban)(ban)片(pian)(pian)間的溝(gou)槽(cao)內,此刻需用(yong)螺絲(si)刀小心(xin)腸將其分隔,螺絲(si)刀應先(xian)從易剝開(kai)的部位插入(ru),然后沿其周邊進行別離(li),切不可損壞換(huan)(huan)熱器(qi)(qi)板(ban)(ban)(ban)片(pian)(pian)和密封墊(dian)(dian)片(pian)(pian) 替換(huan)(huan)新(xin)密封墊(dian)(dian)片(pian)(pian)時(shi),需要用(yong)丙(bing)酮或其他酮類有(you)機溶劑(ji),將密封墊(dian)(dian)片(pian)(pian)溝(gou)槽(cao)擦凈.再用(yong)毛刷將合成樹(shu)脂(zhi)粘接(jie)劑(ji)均(jun)勻(yun)涂(tu)在溝(gou)槽(cao)里..查看換(huan)(huan)熱器(qi)(qi)板(ban)(ban)(ban)片(pian)(pian)是否有(you)穿孔,一般用(yong)5倍的放大(da)鏡,有(you)時(shi)也可用(yong)燈火或火油滲透法等逐片(pian)(pian)查看.e.假如發(fa)現介質出入(ru)口短管及通道有(you)雜物(wu)堆積,則闡(chan)明過(guo)濾(lv)器(qi)(qi)失效,應及時(shi)清洗.