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封(feng)閉(bi)(bi)式(shi)冷(leng)卻(que)(que)塔和(he)管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)同屬于水換(huan)(huan)(huan)(huan)(huan)熱(re)(re)冷(leng)卻(que)(que)裝置,有著(zhu)本質的(de)(de)(de)區(qu)別(bie)。閉(bi)(bi)式(shi)冷(leng)卻(que)(que)塔除了熱(re)(re)交換(huan)(huan)(huan)(huan)(huan)的(de)(de)(de)過程,可(ke)以直接蒸發吸(xi)熱(re)(re),將熱(re)(re)量(liang)排走,而(er)管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)只能(neng)換(huan)(huan)(huan)(huan)(huan)熱(re)(re),使(shi)用過程中還(huan)需(xu)要另外(wai)的(de)(de)(de)設備進行排熱(re)(re)。今(jin)天小衛給大家詳細(xi)介紹一下管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)和(he)閉(bi)(bi)式(shi)冷(leng)卻(que)(que)塔有著(zhu)哪(na)些不同之處,在現(xian)實使(shi)用過程中閉(bi)(bi)式(shi)冷(leng)卻(que)(que)塔替代管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)已成(cheng)趨一、封(feng)閉(bi)(bi)式(shi)冷(leng)卻(que)(que)塔管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)概念及結構管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)(shell and tube heat exchanger)又稱列(lie)管(guan)(guan)(guan)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)。是以封(feng)閉(bi)(bi)在殼(ke)體(ti)中管(guan)(guan)(guan)束的(de)(de)(de)壁面作(zuo)為(wei)傳熱(re)(re)面的(de)(de)(de)間壁式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)。這種換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)結構較簡單,操(cao)作(zuo) ,可(ke)用各(ge)種結構材(cai)料(主要是金(jin)屬材(cai)料)制造,能(neng)在高管(guan)(guan)(guan)殼(ke)式(shi)換(huan)(huan)(huan)(huan)(huan)熱(re)(re)器(qi)(qi)(qi)(qi)由殼(ke)體(ti)、傳熱(re)(re)管(guan)(guan)(guan)束、管(guan)(guan)(guan)板(ban)、折(zhe)流板(ban)(擋板(ban))和(he)管(guan)(guan)(guan)箱等部件(jian)組(zu)成(cheng)。殼(ke)體(ti)多為(wei)圓筒形,內部裝有管(guan)(guan)(guan)束,管(guan)(guan)(guan)束兩端固(gu)定在管(guan)(guan)(guan)板(ban)上。
管(guan)殼式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)其壽命設計(ji)的管(guan)殼式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)約為30年左(zuo)右(you),為4年左(zuo)右(you)的檢(jian)修期,如(ru)果換(huan)(huan)(huan)熱(re)(re)(re)器(qi)泄漏(lou),可能(neng)是(shi)管(guan)和(he)(he)(he)管(guan)道泄漏(lou)引起的泄漏(lou)或(huo)破裂的管(guan)板(ban)(ban)(ban)(ban)之間(jian),壁管(guan)方法可在(zai)短時(shi)間(jian)內恢復工作業績,讓7%堵冠宇管(guan)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)。根據橡膠球清(qing)洗裝置(zhi)的需要(yao)(yao),可進(jin)行定期的機械(xie)清(qing)洗。這個方法很(hen)簡(jian)單(dan)。 板(ban)(ban)(ban)(ban)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)的維(wei)護方法:專(zhuan)業板(ban)(ban)(ban)(ban)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)具有(you)體積小、重量輕(qing)等(deng)特點(dian),維(wei)修方便(bian),不需要(yao)(yao)設置(zhi)吊(diao)裝設施(shi),安(an)裝面積少(shao)。板(ban)(ban)(ban)(ban)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)的手動維(wei)護包括整個機器(qi)的折疊,用噴水槍(qiang)和(he)(he)(he)毛刷清(qing)洗板(ban)(ban)(ban)(ban)和(he)(he)(he)墊片,必要(yao)(yao)時(shi)檢(jian)查板(ban)(ban)(ban)(ban)和(he)(he)(he)墊片,必要(yao)(yao)時(shi)更換(huan)(huan)(huan)板(ban)(ban)(ban)(ban)和(he)(he)(he)墊片。管(guan)殼式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)和(he)(he)(he)板(ban)(ban)(ban)(ban)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)如(ru)何維(wei)修板(ban)(ban)(ban)(ban)式(shi)(shi)換(huan)(huan)(huan)熱(re)(re)(re)器(qi)通常每年需要(yao)(yao)清(qing)洗一(yi)次,無(wu)論是(shi)否實用,都要(yao)(yao)做。
容積式(shi)換(huan)熱(re)(re)(re)器(qi)(qi)采用(yong)(yong)高(gao)效傳熱(re)(re)(re)管—螺紋管作為(wei)換(huan)熱(re)(re)(re)元件,傳熱(re)(re)(re)系數高(gao),比光管換(huan)熱(re)(re)(re)器(qi)(qi)高(gao)1—3倍,流動(dong)阻力小,消耗動(dong)力少。由(you)于在換(huan)熱(re)(re)(re)器(qi)(qi)內(nei)部結構上有了(le)重(zhong)大(da)改進(jin),使換(huan)熱(re)(re)(re)器(qi)(qi)的(de)(de)(de)各(ge)項(xiang)性能指標均(jun)有顯(xian)著(zhu)提高(gao)。容積式(shi)換(huan)熱(re)(re)(re)器(qi)(qi)具(ju)備一(yi)定的(de)(de)(de)水(shui)存(cun)儲量(liang),在賓館、飯(fan)店、機關、學校、醫(yi)院(yuan)、工(gong)廠(chang)、礦山等工(gong)業與民用(yong)(yong)建(jian)筑(zhu)的(de)(de)(de)生活熱(re)(re)(re)水(shui)供應系統中,應用(yong)(yong)廣泛。容積式(shi)換(huan)熱(re)(re)(re)器(qi)(qi)特(te)點:1. 換(huan)熱(re)(re)(re)器(qi)(qi)的(de)(de)(de)材質(zhi)根(gen)據介質(zhi)的(de)(de)(de)不(bu)同,可選(xuan)用(yong)(yong)碳素鋼、不(bu)銹(xiu)(SUS304,SUS316,SUS316L)、銅(tong)管及(ji)其(qi)它特(te)殊材質(zhi)。2. 換(huan)熱(re)(re)(re)器(qi)(qi)內(nei)的(de)(de)(de)流體充(chong)分,抗垢能力強。3. 罐內(nei)全部儲存(cun)熱(re)(re)(re)水(shui),無滯水(shui)、冷(leng)水(shui)區,溶(rong)積利用(yong)(yong)率高(gao)。4. 殼體為(wei)不(bu)銹(xiu)鋼Ocr18Ni9或Q235B內(nei)襯紫銅(tong)板外(wai)壁(bi)涂漆防腐,換(huan)熱(re)(re)(re)管采用(yong)(yong)T2紫銅(tong)管。應用(yong)(yong)領域:賓館、酒店、住宅小區及(ji)其(qi)他(ta)生活與工(gong)業的(de)(de)(de)熱(re)(re)(re)水(shui)供應。主要參數:工(gong)作壓力:0.2~2.5Mpa產(chan)熱(re)(re)(re)水(shui)量(liang):0.4m3/h~60m3/h
鈦熱(re)(re)交(jiao)換(huan)器特點:鈦換(huan)熱(re)(re)器因(yin)(yin)金屬(shu)離子不易(yi)流(liu)失、所以可(ke)充分(fen)利(li)用這(zhe)種(zhong)非磁性(xing)特點,用做(zuo)制藥及食(shi)品(pin)等用途的(de)換(huan)熱(re)(re)器。由于鈦的(de)抗腐蝕能(neng)(neng)力強、所以器換(huan)熱(re)(re)器的(de)使用壽命長(chang)、并且在使用中維護(hu)費(fei)用也(ye)少。此外、因(yin)(yin)其具(ju)有體積小、換(huan)熱(re)(re)能(neng)(neng)力大等優(you)(you)點、相關設(she)備(如泵)的(de)投資及運行費(fei)用也(ye)能(neng)(neng)相應減少鈦熱(re)(re)交(jiao)換(huan)器應用范圍:鈦換(huan)熱(re)(re)器憑借(jie)工業純鈦的(de)各(ge)種(zhong)優(you)(you)良性(xing)質,廣泛應用于各(ge)類海鮮養(yang)殖,海水換(huan)熱(re)(re),鹽水換(huan)熱(re)(re),化工,食(shi)品(pin),醫藥,冶金,制冷,輕工,電(dian)鍍行業、鋁氧化槽、制鹽、造紙(zhi)、超聲波、電(dian)子通(tong)訊(xun)、集中供熱(re)(re)等行業和(he)領域。
容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)是一(yi)(yi)(yi)種(zhong)在工業上應(ying)用(yong)(yong)很廣泛的(de)機(ji)械設備,具有(you)(you)儲(chu)水量大(da)、水溫穩定(ding)等優(you)點。那(nei)么大(da)家知道容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)的(de)組成(cheng)(cheng)(cheng)種(zhong)類有(you)(you)哪(na)些(xie)嗎?FPR浮動盤(pan)(pan)管(guan)容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)的(de)特點又是怎樣的(de)呢?下面就跟隨(sui)小(xiao)編一(yi)(yi)(yi)起看一(yi)(yi)(yi)下吧。以下關于“容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)的(de)組成(cheng)(cheng)(cheng)類型及(ji)特性有(you)(you)哪(na)些(xie)”的(de)介紹。容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)主要(yao)由貯水罐(guan)(guan)體(ti)、換(huan)(huan)熱(re)盤(pan)(pan)管(guan)管(guan)束、熱(re)媒進(jin)出(chu)口、冷熱(re)水進(jin)出(chu)口及(ji)各種(zhong)儀表和安全閥(fa)接(jie)口等組成(cheng)(cheng)(cheng)容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)可(ke)省掉(diao)熱(re)水箱(罐(guan)(guan)),熱(re)媒通人盤(pan)(pan)管(guan)管(guan)束與罐(guan)(guan)體(ti)內(nei)的(de)水進(jin)行換(huan)(huan)熱(re),使罐(guan)(guan)內(nei)水溫升高(gao)而達(da)到使用(yong)(yong)熱(re)水要(yao)求(qiu),屬間接(jie)加熱(re)方式(shi)(shi)(shi)。容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi)種(zhong)類很多,從(cong)外型上可(ke)分立(li)式(shi)(shi)(shi)和臥(wo)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi);從(cong)熱(re)媒性質可(ke)分汽(qi)水型和水水型,即熱(re)媒可(ke)采用(yong)(yong)蒸汽(qi)或高(gao)溫水;從(cong)罐(guan)(guan)體(ti)內(nei)結構而分有(you)(you)容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)和半(ban)容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)(半(ban)即熱(re)浮動盤(pan)(pan)管(guan)式(shi)(shi)(shi))等類型。容(rong)積(ji)(ji)(ji)式(shi)(shi)(shi)換(huan)(huan)熱(re)器(qi)(qi)(qi),其罐(guan)(guan)體(ti)內(nei)充滿水,冷水自換(huan)(huan)熱(re)器(qi)(qi)(qi)底(di)部進(jin)入(ru),熱(re)水從(cong)罐(guan)(guan)體(ti)頂部流(liu)出(chu)。
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,最好板式熱交換器哪家好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。南京板式熱交換器經去(qu)除外面(mian)保溫材料后(hou),發(fa)現汽(qi)包封頭(tou)(tou)的(de)蓋板(ban)角(jiao)焊(han)縫位置(zhi)出現裂紋,裂紋為穿透型,起源于汽(qi)包封頭(tou)(tou)內(nei)表(biao)面(mian),換熱器外形(xing)尺寸為1632mm9423mm,汽(qi)包封頭(tou)(tou)外形(xing)尺寸1632mm400mm,汽(qi)包封頭(tou)(tou)材料為16MnR鋼。