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管殼式換(huan)熱(re)(re)器(qi)(qi)是(shi)(shi)石油(you)化(hua)工行業(ye)的(de)重要設(she)(she)(she)備,它的(de)腐(fu)蝕(shi)(shi)及保(bao)護(hu)(hu)對(dui)設(she)(she)(she)備的(de)長周(zhou)期(qi)運(yun)行有著重要的(de)意義;由(you)(you)(you)于近年來(lai)加工原油(you)中(zhong)的(de)硫、酸及雜質(zhi)含量越來(lai)越高(gao),對(dui)煉油(you)換(huan)熱(re)(re)設(she)(she)(she)備的(de)防(fang)腐(fu)蝕(shi)(shi)性能及材(cai)料(liao)的(de)選(xuan)擇提出了(le)更高(gao)的(de)要求。文章對(dui)采(cai)用專(zhuan)用涂(tu)料(liao)與(yu)犧牲陽極綜(zong)(zong)合(he)保(bao)護(hu)(hu)法(fa)進行了(le)闡述(shu),該方(fang)法(fa)工藝(yi)方(fang)案和(he)特點是(shi)(shi):管殼式換(huan)熱(re)(re)器(qi)(qi)的(de)工藝(yi)方(fang)案和(he)特點是(shi)(shi)什么表(biao)面處理要徹底,合(he)理選(xuan)取保(bao)護(hu)(hu)電(dian)流密度,按設(she)(she)(she)計要求確定陽極塊,控制好濕度和(he)溫度,涂(tu)料(liao)施工嚴格按照SHY-99涂(tu)料(liao)工藝(yi)進行,確保(bao)綜(zong)(zong)合(he)防(fang)護(hu)(hu)的(de)效果。目前(qian)國內(nei)石油(you)、化(hua)纖、冶(ye)金、發(fa)電(dian)等企(qi)業(ye)的(de)冷(leng)(leng)換(huan)器(qi)(qi)設(she)(she)(she)備經常由(you)(you)(you)于水垢、腐(fu)蝕(shi)(shi)產物(wu)和(he)腐(fu)蝕(shi)(shi)物(wu)黏泥造成冷(leng)(leng)換(huan)器(qi)(qi)堵塞,致傳熱(re)(re)系(xi)數下降,是(shi)(shi)冷(leng)(leng)卻水系(xi)統(tong)中(zhong)常見的(de)問題。由(you)(you)(you)于碳(tan)酸鹽(yan)垢的(de)導熱(re)(re)系(xi)數只有碳(tan)鋼(gang)的(de)1%左右,直接影(ying)響到了(le)換(huan)熱(re)(re)效率,增加了(le)系(xi)統(tong)的(de)壓力降。
1、挖孔:在(zai)確定了內漏(lou)點的(de)(de)(de)(de)位(wei)置后,從換(huan)熱(re)(re)器外(wai)層(ceng)(ceng)對(dui)應(ying)(ying)(ying)著漏(lou)點的(de)(de)(de)(de)地(di)方,開始割(ge)孔,順序是由(you)外(wai)向里,一(yi)直割(ge)到有內漏(lou)點的(de)(de)(de)(de)那一(yi)層(ceng)(ceng)為(wei)止(zhi)。割(ge)出(chu)的(de)(de)(de)(de)孔應(ying)(ying)(ying)為(wei)橢圓形(xing),且(qie)尺(chi)寸(cun)的(de)(de)(de)(de)大(da)(da)小是外(wai)層(ceng)(ceng)大(da)(da),向里逐漸小,一(yi)般每(mei)層(ceng)(ceng)板(ban)(ban)上孔的(de)(de)(de)(de)大(da)(da)小相(xiang)差(cha)40mm,如漏(lou)點位(wei)置較(jiao)深,在(zai)外(wai)層(ceng)(ceng)割(ge)出(chu)的(de)(de)(de)(de)孔應(ying)(ying)(ying)較(jiao)大(da)(da)。換(huan)熱(re)(re)器內漏(lou)處(chu)的(de)(de)(de)(de)3種處(chu)理(li)辦法(fa)2、清(qing)渣(zha):在(zai)割(ge)完(wan)孔后,應(ying)(ying)(ying)對(dui)留在(zai)每(mei)層(ceng)(ceng)板(ban)(ban)上的(de)(de)(de)(de)氧化渣(zha)認真進行(xing)清(qing)理(li),這是在(zai)對(dui)焊回(hui)補(bu)板(ban)(ban)時,回(hui)補(bu)板(ban)(ban)與每(mei)層(ceng)(ceng)螺旋板(ban)(ban)能否貼緊焊牢的(de)(de)(de)(de)關鍵,可用鏨(zan)子(zi)和(he)(he)修整模具(ju)用的(de)(de)(de)(de)小手砂(sha)輪清(qing)理(li)氧化渣(zha),注意應(ying)(ying)(ying)盡量將清(qing)理(li)的(de)(de)(de)(de)渣(zha)子(zi)清(qing)出(chu),不(bu)讓其掉(diao)進換(huan)熱(re)(re)器內。換(huan)熱(re)(re)器內漏(lou)處(chu)的(de)(de)(de)(de)3種處(chu)理(li)辦法(fa)3、配回(hui)補(bu)板(ban)(ban):換(huan)熱(re)(re)器內漏(lou)處(chu)的(de)(de)(de)(de)3種處(chu)理(li)辦法(fa)為(wei)保證(zheng)修理(li)的(de)(de)(de)(de)質(zhi)量,從換(huan)熱(re)(re)器上每(mei)層(ceng)(ceng)割(ge)下(xia)來的(de)(de)(de)(de)板(ban)(ban)料(liao),不(bu)再使用,【主詞】重新配回(hui)補(bu)板(ban)(ban),另配的(de)(de)(de)(de)回(hui)補(bu)板(ban)(ban)要用與換(huan)熱(re)(re)器螺旋板(ban)(ban)相(xiang)同的(de)(de)(de)(de)材料(liao)和(he)(he)板(ban)(ban)厚(hou),其周邊應(ying)(ying)(ying)比換(huan)熱(re)(re)器上每(mei)層(ceng)(ceng)割(ge)出(chu)的(de)(de)(de)(de)孔分別大(da)(da)15mm-20mm,且(qie)也為(wei)橢圓形(xing),并做成和(he)(he)換(huan)熱(re)(re)器每(mei)層(ceng)(ceng)螺旋板(ban)(ban)弧度相(xiang)一(yi)致的(de)(de)(de)(de)弧形(xing)。
容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)是(shi)一(yi)(yi)種(zhong)(zhong)在工業上應用很(hen)廣泛的(de)(de)機(ji)械設(she)備(bei),具有儲水(shui)量大、水(shui)溫(wen)穩定等優點(dian)。那(nei)么大家知道容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)的(de)(de)組成(cheng)種(zhong)(zhong)類(lei)有哪(na)些(xie)嗎?FPR浮動盤(pan)管容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)的(de)(de)特點(dian)又是(shi)怎樣的(de)(de)呢?下面(mian)就跟隨小編一(yi)(yi)起看(kan)一(yi)(yi)下吧。以(yi)下關于“容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)的(de)(de)組成(cheng)類(lei)型及(ji)特性(xing)有哪(na)些(xie)”的(de)(de)介紹。容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)主要(yao)由(you)貯水(shui)罐(guan)(guan)體、換(huan)(huan)熱(re)(re)(re)(re)盤(pan)管管束(shu)、熱(re)(re)(re)(re)媒進出(chu)(chu)口、冷熱(re)(re)(re)(re)水(shui)進出(chu)(chu)口及(ji)各種(zhong)(zhong)儀表和(he)(he)(he)安全(quan)閥接(jie)口等組成(cheng)容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)可省掉熱(re)(re)(re)(re)水(shui)箱(罐(guan)(guan)),熱(re)(re)(re)(re)媒通(tong)人盤(pan)管管束(shu)與(yu)罐(guan)(guan)體內(nei)的(de)(de)水(shui)進行換(huan)(huan)熱(re)(re)(re)(re),使(shi)罐(guan)(guan)內(nei)水(shui)溫(wen)升高(gao)而達到使(shi)用熱(re)(re)(re)(re)水(shui)要(yao)求,屬間接(jie)加(jia)熱(re)(re)(re)(re)方式(shi)(shi)(shi)(shi)。容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)種(zhong)(zhong)類(lei)很(hen)多(duo),從(cong)外(wai)型上可分(fen)立(li)式(shi)(shi)(shi)(shi)和(he)(he)(he)臥式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi);從(cong)熱(re)(re)(re)(re)媒性(xing)質可分(fen)汽水(shui)型和(he)(he)(he)水(shui)水(shui)型,即熱(re)(re)(re)(re)媒可采用蒸汽或高(gao)溫(wen)水(shui);從(cong)罐(guan)(guan)體內(nei)結構(gou)而分(fen)有容(rong)積(ji)式(shi)(shi)(shi)(shi)和(he)(he)(he)半(ban)容(rong)積(ji)式(shi)(shi)(shi)(shi)(半(ban)即熱(re)(re)(re)(re)浮動盤(pan)管式(shi)(shi)(shi)(shi))等類(lei)型。容(rong)積(ji)式(shi)(shi)(shi)(shi)換(huan)(huan)熱(re)(re)(re)(re)器(qi),其罐(guan)(guan)體內(nei)充滿水(shui),冷水(shui)自(zi)換(huan)(huan)熱(re)(re)(re)(re)器(qi)底部進入,熱(re)(re)(re)(re)水(shui)從(cong)罐(guan)(guan)體頂部流出(chu)(chu)。
容積式換熱器,它主要由器體、蒸汽盤管組件,蒸汽收支口、冷熱水收支口等構成,熱水機組廠家本實用新型為防止器體內表面腐化,在表面上噴涂有一層防腐合金層,并在合金層上刷制有油漆層,另取消原有管箱,蒸汽盤管通過法蘭間接外接,從而使本實用新型具有結構簡單公道、運用壽命長,換熱結果好,節能等特點。容積式換熱器原理—原理換熱器是將熱流體的部分熱量通報給冷流體,重慶熱水機組廠家使流(liu)體(ti)溫度到(dao)達工藝流(liu)程規則的(de)(de)目標的(de)(de)熱(re)(re)量(liang)交(jiao)流(liu)設備(bei),又(you)稱熱(re)(re)交(jiao)流(liu)器(qi)(qi),俗稱過水(shui)熱(re)(re)。只需(xu)您(nin)家中有(you)暖氣片,將(jiang)換熱(re)(re)器(qi)(qi)串聯到(dao)暖氣管(guan)道(dao)上,在不影響供暖的(de)(de)條件下(xia),暖氣片當中的(de)(de)高溫熱(re)(re)水(shui)與自(zi)來水(shui)就會在設備(bei)內(nei)部進行熱(re)(re)量(liang)交(jiao)流(liu)。
容(rong)積(ji)式(shi)(shi)換(huan)熱器利用(yong)(yong)(yong)增(zeng)壓(ya)(ya)(ya)(ya)(ya)泵出口處(chu)止回(hui)閥(fa)和電(dian)磁(ci)閥(fa)前(qian)閥(fa),當(dang)用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)統運行(xing)時(shi),即用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)增(zeng)壓(ya)(ya)(ya)(ya)(ya)泵啟動時(shi),電(dian)磁(ci)閥(fa)前(qian)閥(fa)通電(dian),當(dang)用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)統內(nei)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)超過定(ding)(ding)壓(ya)(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(確保(bao)用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)統不(bu)倒空(kong))后,電(dian)磁(ci)閥(fa)前(qian)閥(fa)自動開啟,用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)回(hui)水(shui)(shui)經閥(fa)前(qian)閥(fa)定(ding)(ding)壓(ya)(ya)(ya)(ya)(ya)為用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)統的定(ding)(ding)壓(ya)(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)(ya)力(li)(li),并容(rong)積(ji)式(shi)(shi)換(huan)熱器減壓(ya)(ya)(ya)(ya)(ya)至(zhi)和熱網回(hui)水(shui)(shui)管壓(ya)(ya)(ya)(ya)(ya)力(li)(li)相同(tong);當(dang)用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)容(rong)積(ji)式(shi)(shi)換(huan)熱器增(zeng)壓(ya)(ya)(ya)(ya)(ya)泵停(ting)止運行(xing)時(shi),電(dian)磁(ci)閥(fa)前(qian)閥(fa)斷電(dian)自動關閉,這樣用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)統內(nei)的水(shui)(shui)就被密閉起來,如果不(bu)漏水(shui)(shui),可(ke)保(bao)證用(yong)(yong)(yong)容(rong)積(ji)式(shi)(shi)換(huan)熱器戶(hu)(hu)(hu)(hu)系(xi)(xi)統內(nei)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)在(zai)較(jiao)長時(shi)間維持在(zai)定(ding)(ding)壓(ya)(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)左右。也就是說,不(bu)論增(zeng)壓(ya)(ya)(ya)(ya)(ya)冪運行(xing)還是不(bu)運行(xing),用(yong)(yong)(yong)戶(hu)(hu)(hu)(hu)系(xi)(xi)締內(nei)的壓(ya)(ya)(ya)(ya)(ya)力(li)(li)都町堆(dui)持在(zai)倧壓(ya)(ya)(ya)(ya)(ya)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)范(fan)圍內(nei)。