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隨著(zhu)社會(hui)不(bu)(bu)斷的(de)(de)(de)(de)進展,容(rong)(rong)積式換熱器逐漸走(zou)進我們(men)的(de)(de)(de)(de)生活,它(ta)是(shi)不(bu)(bu)僅(jin)可(ke)以進行熱量交換,而且(qie)使(shi)用年(nian)限較長,通(tong)(tong)常適(shi)用于工業(ye)及民用建(jian)筑的(de)(de)(de)(de)熱水(shui)(shui)供應系統,關于它(ta)的(de)(de)(de)(de)知識還(huan)有哪些(xie)是(shi)我們(men)不(bu)(bu)知道(dao)的(de)(de)(de)(de)呢(ni)?下面就和小(xiao)編一(yi)起看(kan)看(kan)吧。以下關于“容(rong)(rong)積式換熱器發(fa)生問題(ti)的(de)(de)(de)(de)原(yuan)因及其產品知識的(de)(de)(de)(de)相關說明”的(de)(de)(de)(de)介紹。一(yi)、產品簡(jian)介:與傳統固定(ding)盤管(guan)(guan)相比(bi)較,浮動盤管(guan)(guan)能上下輕微(wei)浮動,產生高頻振動,形(xing)成良好紊流傳熱狀態,并(bing)且(qie)它(ta)能借助通(tong)(tong)過高溫(wen)熱媒的(de)(de)(de)(de)薄壁銅管(guan)(guan)管(guan)(guan)壁與管(guan)(guan)外壁結(jie)垢層膨脹量的(de)(de)(de)(de)差異(yi),在一(yi)定(ding)條件下,使(shi)水(shui)(shui)垢自動脫落。通(tong)(tong)用換熱器一(yi)般需要配置水(shui)(shui)水(shui)(shui)熱交換器來降低蒸汽凝(ning)(ning)結(jie)水(shui)(shui)溫(wen)度以便回用,而此類節能型熱交換器凝(ning)(ning)結(jie)水(shui)(shui)出水(shui)(shui)溫(wen)度在45攝適(shi)度左右,可(ke)直接回鍋爐房(fang)重復使(shi)用。
容積式換熱(re)(re)器(qi)利用增壓(ya)(ya)(ya)泵出口處止回閥(fa)(fa)和電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)閥(fa)(fa),當用戶(hu)(hu)系(xi)統運(yun)行(xing)(xing)時,即用戶(hu)(hu)增壓(ya)(ya)(ya)泵啟動時,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)閥(fa)(fa)通電(dian)(dian),當用戶(hu)(hu)系(xi)統內(nei)壓(ya)(ya)(ya)力超過定(ding)壓(ya)(ya)(ya)壓(ya)(ya)(ya)力(確保用戶(hu)(hu)系(xi)統不(bu)(bu)(bu)倒(dao)空)后,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)閥(fa)(fa)自動開(kai)啟,用戶(hu)(hu)回水(shui)經(jing)閥(fa)(fa)前(qian)閥(fa)(fa)定(ding)壓(ya)(ya)(ya)為(wei)用戶(hu)(hu)系(xi)統的(de)(de)定(ding)壓(ya)(ya)(ya)壓(ya)(ya)(ya)力,并容積式換熱(re)(re)器(qi)減壓(ya)(ya)(ya)至和熱(re)(re)網回水(shui)管(guan)壓(ya)(ya)(ya)力相(xiang)同;當用戶(hu)(hu)容積式換熱(re)(re)器(qi)增壓(ya)(ya)(ya)泵停(ting)止運(yun)行(xing)(xing)時,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)閥(fa)(fa)斷電(dian)(dian)自動關(guan)閉,這樣(yang)用戶(hu)(hu)系(xi)統內(nei)的(de)(de)水(shui)就被密閉起(qi)來(lai),如果不(bu)(bu)(bu)漏水(shui),可保證(zheng)用容積式換熱(re)(re)器(qi)戶(hu)(hu)系(xi)統內(nei)壓(ya)(ya)(ya)力在較長時間(jian)維持(chi)在定(ding)壓(ya)(ya)(ya)壓(ya)(ya)(ya)力左(zuo)右。也就是說(shuo),不(bu)(bu)(bu)論增壓(ya)(ya)(ya)冪運(yun)行(xing)(xing)還是不(bu)(bu)(bu)運(yun)行(xing)(xing),用戶(hu)(hu)系(xi)締內(nei)的(de)(de)壓(ya)(ya)(ya)力都町堆持(chi)在倧壓(ya)(ya)(ya)壓(ya)(ya)(ya)力范圍內(nei)。
熱容積式換熱器是一種新型高效換熱設備,板式熱交換器廠家它集波紋管換熱器和容積式換熱器的有限于一體,采用薄壁不銹鋼波紋管作為換熱元件。由于波紋管獨特的波形,實現了管內外充分湍流,打破了邊界層,降低了管壁熱阻,提高了管內的給熱系數。波紋管即熱容積式換熱器在溫差應力的作用下,波紋在軸向存在伸縮變形,使管壁不宜結垢,即使結垢,也會由于管子的伸縮而脫落。因此,該系列容積式換熱器具有如下特點:1、換熱效率高。2、防垢、除垢能力強。3、儲水量大,出水溫度恒定。4、出水能力是其他容積式換熱器的3-5倍。5、體積小,占地面積小,可節省占地面積30%-80%。波紋管即熱容積式換新疆板式熱交換器廠家熱器(qi)分為立(li)式與(yu)(yu)臥式兩種系列,按照熱源介質分為汽(qi)水(shui)型與(yu)(yu)水(shui)水(shui)型。
換(huan)熱器(qi)板(ban)片(pian)(pian)拆開前,應丈(zhang)量板(ban)束的(de)壓緊(jin)長度尺度,做(zuo)好(hao)記錄(重裝時應按此尺度). b.密(mi)(mi)封(feng)墊(dian)(dian)片(pian)(pian)若(ruo)粘在兩板(ban)片(pian)(pian)間的(de)溝(gou)槽(cao)內,此刻需(xu)用(yong)(yong)螺(luo)絲(si)刀(dao)小心腸將(jiang)其(qi)分(fen)隔,螺(luo)絲(si)刀(dao)應先從易剝(bo)開的(de)部(bu)位插入,然后沿其(qi)周邊進行(xing)別(bie)離,切(qie)不(bu)可損壞換(huan)熱器(qi)板(ban)片(pian)(pian)和密(mi)(mi)封(feng)墊(dian)(dian)片(pian)(pian) 替(ti)換(huan)新密(mi)(mi)封(feng)墊(dian)(dian)片(pian)(pian)時,需(xu)要用(yong)(yong)丙(bing)酮或其(qi)他(ta)酮類有機(ji)溶劑(ji),將(jiang)密(mi)(mi)封(feng)墊(dian)(dian)片(pian)(pian)溝(gou)槽(cao)擦(ca)凈.再用(yong)(yong)毛刷將(jiang)合成樹脂粘接劑(ji)均勻涂在溝(gou)槽(cao)里..查看換(huan)熱器(qi)板(ban)片(pian)(pian)是否(fou)有穿孔,一般(ban)用(yong)(yong)5倍的(de)放大鏡,有時也可用(yong)(yong)燈火或火油滲透法等(deng)逐(zhu)片(pian)(pian)查看.e.假如(ru)發現介質出入口(kou)短管及通道有雜物(wu)堆(dui)積,則闡明過濾(lv)器(qi)失效,應及時清洗.
在(zai)檢(jian)(jian)修維(wei)(wei)護換熱器汽(qi)(qi)包(bao)(bao)(bao)時(shi)發現(xian)汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)泄(xie)漏(lou),在(zai)汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)的(de)閥蓋角(jiao)焊縫處出(chu)現(xian)裂(lie)(lie)紋,裂(lie)(lie)紋平行于(yu)焊縫。采用宏觀(guan)形(xing)貌分(fen)析(xi)、化學成分(fen)分(fen)析(xi)、金(jin)相檢(jian)(jian)驗、顯微(wei)硬度測定(ding)、能(neng)譜分(fen)析(xi)以及應力分(fen)析(xi)等方法(fa)對泄(xie)漏(lou)處進行了分(fen)析(xi)。結(jie)果表明(ming),汽(qi)(qi)包(bao)(bao)(bao)中水質含有(you)較(jiao)高濃(nong)度的(de)堿(jian)性元(yuan)素和氯、硫、氧等強腐蝕性元(yuan)素,又(you)在(zai)焊接殘余應力的(de)作用下(xia)發生應力腐蝕開裂(lie)(lie),最(zui)后導致汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)產生泄(xie)漏(lou)。應力腐蝕;沿(yan)晶;堿(jian)脆(cui);軋制(zhi)帶狀組織某化工廠換熱器汽(qi)(qi)包(bao)(bao)(bao)于(yu)1996年(nian)投(tou)入使用,于(yu)2005年(nian)上(shang)半年(nian)維(wei)(wei)護檢(jian)(jian)修時(shi)發現(xian)滲漏(lou)。經去除外面(mian)保溫材(cai)料后,發現(xian)汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)的(de)蓋板角(jiao)焊縫位置(zhi)出(chu)現(xian)裂(lie)(lie)紋,裂(lie)(lie)紋為穿透型,起源于(yu)汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)內表面(mian),換熱器外形(xing)尺(chi)寸為1632mm9423mm,汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)外形(xing)尺(chi)寸1632mm400mm,汽(qi)(qi)包(bao)(bao)(bao)封(feng)頭(tou)材(cai)料為16MnR鋼(gang)。