在檢(jian)修(xiu)維護換熱(re)(re)器(qi)汽(qi)包(bao)(bao)時發(fa)現(xian)汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)泄漏(lou)，在汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)的(de)閥蓋(gai)角焊縫(feng)處出現(xian)裂(lie)(lie)(lie)紋(wen)，裂(lie)(lie)(lie)紋(wen)平行(xing)于焊縫(feng)。采用(yong)宏觀形(xing)(xing)貌(mao)分(fen)析(xi)(xi)、化(hua)學成分(fen)分(fen)析(xi)(xi)、金相檢(jian)驗(yan)、顯微硬度(du)(du)測定、能譜分(fen)析(xi)(xi)以(yi)及應(ying)力(li)分(fen)析(xi)(xi)等(deng)方法對泄漏(lou)處進行(xing)了分(fen)析(xi)(xi)。結果表明(ming)，汽(qi)包(bao)(bao)中水質含有較高濃度(du)(du)的(de)堿性元素和(he)氯(lv)、硫、氧等(deng)強腐蝕性元素，又在焊接殘余(yu)應(ying)力(li)的(de)作用(yong)下發(fa)生應(ying)力(li)腐蝕開裂(lie)(lie)(lie)，最后導致(zhi)汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)產生泄漏(lou)。應(ying)力(li)腐蝕；沿晶；堿脆；軋制帶狀(zhuang)組織某化(hua)工廠(chang)換熱(re)(re)器(qi)汽(qi)包(bao)(bao)于1996年投入使用(yong)，于2005年上(shang)半年維護檢(jian)修(xiu)時發(fa)現(xian)滲漏(lou)。經去除外面保溫材料后，發(fa)現(xian)汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)的(de)蓋(gai)板角焊縫(feng)位置出現(xian)裂(lie)(lie)(lie)紋(wen)，裂(lie)(lie)(lie)紋(wen)為穿(chuan)透型，起源于汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)內表面，換熱(re)(re)器(qi)外形(xing)(xing)尺寸(cun)為1632mm9423mm，汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)外形(xing)(xing)尺寸(cun)1632mm400mm，汽(qi)包(bao)(bao)封(feng)(feng)頭(tou)材料為16MnR鋼。

容積式換(huan)熱(re)(re)器，它主要由器體(ti)(ti)(ti)、蒸(zheng)汽盤(pan)管組件(jian)(jian)，蒸(zheng)汽收支(zhi)口、冷熱(re)(re)水收支(zhi)口等構(gou)成，本實用新型為防止器體(ti)(ti)(ti)內(nei)表(biao)面腐化，在(zai)(zai)表(biao)面上(shang)噴(pen)涂有一(yi)層防腐合金層，并(bing)在(zai)(zai)合金層上(shang)刷(shua)制有油漆層，另取消(xiao)原有管箱，蒸(zheng)汽盤(pan)管通過(guo)法蘭間(jian)接(jie)外(wai)接(jie)，從(cong)而使本實用新型具有結構(gou)簡(jian)單公(gong)道、運用壽命(ming)長，換(huan)熱(re)(re)結果好(hao)，節(jie)能等特(te)點(dian)。容積式換(huan)熱(re)(re)器原理—原理換(huan)熱(re)(re)器是將熱(re)(re)流(liu)體(ti)(ti)(ti)的(de)部(bu)分(fen)熱(re)(re)量通報給冷流(liu)體(ti)(ti)(ti)，使流(liu)體(ti)(ti)(ti)溫(wen)度到(dao)達工藝(yi)流(liu)程(cheng)規則(ze)的(de)目標的(de)熱(re)(re)量交流(liu)設(she)備，又稱熱(re)(re)交流(liu)器，俗稱過(guo)水熱(re)(re)。只(zhi)需您家中有暖氣片，將換(huan)熱(re)(re)器串聯到(dao)暖氣管道上(shang)，在(zai)(zai)不影響供暖的(de)條件(jian)(jian)下，暖氣片當(dang)中的(de)高溫(wen)熱(re)(re)水與自來水就(jiu)會在(zai)(zai)設(she)備內(nei)部(bu)進行熱(re)(re)量交流(liu)。

管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)是(shi)把換(huan)(huan)熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)與(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)板(ban)連(lian)接后，再用(yong)筒(tong)體(ti)與(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)箱包(bao)起(qi)來，形(xing)成(cheng)(cheng)兩個獨立的(de)(de)(de)(de)空間。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)內的(de)(de)(de)(de)通(tong)道(dao)及(ji)與(yu)其相(xiang)貫通(tong)的(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)箱稱(cheng)為(wei)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)程(cheng)(cheng)；管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)外(wai)的(de)(de)(de)(de)通(tong)道(dao)及(ji)與(yu)其相(xiang)貫通(tong)的(de)(de)(de)(de)部分稱(cheng)為(wei)殼程(cheng)(cheng)。一(yi)種流(liu)體(ti)在(zai)(zai)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)內流(liu)動，而另一(yi)種流(liu)體(ti)在(zai)(zai)殼與(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)之(zhi)間從(cong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)外(wai)表面流(liu)過，為(wei)了保(bao)證殼程(cheng)(cheng)流(liu)體(ti)能夠(gou)橫向流(liu)過管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)，以(yi)形(xing)成(cheng)(cheng)較高的(de)(de)(de)(de)傳(chuan)熱(re)速率，在(zai)(zai)外(wai)殼上裝(zhuang)有(you)許(xu)多(duo)擋板(ban)。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)腐(fu)蝕(shi)(shi)和(he)磨(mo)蝕(shi)(shi)失(shi)(shi)效的(de)(de)(de)(de)主要原(yuan)因管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)在(zai)(zai)使(shi)用(yong)的(de)(de)(de)(de)過程(cheng)(cheng)中可能會(hui)發(fa)生失(shi)(shi)效的(de)(de)(de)(de)情(qing)況(kuang)，常(chang)見的(de)(de)(de)(de)失(shi)(shi)效是(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)失(shi)(shi)效的(de)(de)(de)(de)情(qing)況(kuang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)腐(fu)蝕(shi)(shi)和(he)磨(mo)蝕(shi)(shi)失(shi)(shi)效、傳(chuan)熱(re)能力(li)下(xia)降、管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)泄(xie)漏(lou).以(yi)下(xia)是(shi)關于管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)官術失(shi)(shi)效的(de)(de)(de)(de)具(ju)體(ti)介紹。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)出現(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)束(shu)(shu)失(shi)(shi)效的(de)(de)(de)(de)情(qing)況(kuang)有(you)哪(na)些(xie)?管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)的(de)(de)(de)(de)失(shi)(shi)效大多(duo)數是(shi)由腐(fu)蝕(shi)(shi)引(yin)起(qi)的(de)(de)(de)(de)。最常(chang)見的(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)殼式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)腐(fu)蝕(shi)(shi)部位是(shi)換(huan)(huan)熱(re)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan),然后依(yi)次是(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)板(ban)、換(huan)(huan)熱(re)器(qi)(qi)封頭 及(ji)小直徑的(de)(de)(de)(de)接管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。

在石油化工行業中，少不了換熱器的應用，隨著換熱器穩定性和工作效率的提高，如今已成為非常常見的換熱設施在石油行業設備投資上它所占的比例能夠達到三分之一以上。目前在石油化工行業關注的問題就是如何使提高換熱器的傳熱效率，降低換熱設施的投資，熱交換器廠家最終實現石油化工行業經濟效益和社會效益的大化高效板式換熱器的優勢在石油化工行業中，換熱器的種類也是非常之多的，他們分別對于壓力和溫度有著超高的要求。高效板式換熱器：能夠更好地應對較高的壓力以及較高的溫度，供應熱交換器廠家具(ju)體來說，焊接式板式換熱器具(ju)備(bei)較強的便捷性(xing)、體積小、重量輕、存在(zai)著良好(hao)的傳熱性(xing)能、價格(ge)低廉。因(yin)此，在(zai)石油的生產過程中得到(dao)了更(geng)好(hao)的應(ying)用。