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誤區(qu)一、只(zhi)比(bi)較換(huan)熱(re)面(mian)積好多(duo)用(yong)(yong)(yong)戶(hu)在(zai)詢價時,只(zhi)向詢價單元提供(gong)換(huan)熱(re)面(mian)積,的(de)確不管哪品(pin)種型(xing)(xing)的(de)容(rong)積式換(huan)熱(re)器,管殼(ke)式換(huan)熱(re)器面(mian)積相同的(de)狀況(kuang)下,型(xing)(xing)號差(cha)(cha)(cha)別(bie)(bie)、結構(gou)構(gou)成差(cha)(cha)(cha)別(bie)(bie)、所用(yong)(yong)(yong)材質(zhi)規格(ge)差(cha)(cha)(cha)別(bie)(bie)、流(liu)程(cheng)組合差(cha)(cha)(cha)別(bie)(bie),它們的(de)價錢是不具(ju)有(you)可比(bi)性(xing)的(de),并且在(zai)運(yun)用(yong)(yong)(yong)流(liu)程(cheng)中所表示(shi)出來的(de)工(gong)作功(gong)能也會(hui)有(you)很大差(cha)(cha)(cha)異。誤區(qu)二(er)、拿著某一個廠家的(de)選型(xing)(xing)單詢價差(cha)(cha)(cha)別(bie)(bie)的(de)生產(chan)廠家,緣于本身的(de)加工(gong)才能、實際(ji)使(shi)用(yong)(yong)(yong)經歷 、引薦習(xi)氣等要素,往往對(dui)用(yong)(yong)(yong)戶(hu)的(de)某一運(yun)用(yong)(yong)(yong)要求及工(gong)藝工(gong)況(kuang)并不明(ming)白得十(shi)分(fen)透徹,計(ji)劃選型(xing)(xing)會(hui)出現偏頗。
容積式換熱(re)(re)器(qi)利用(yong)增壓(ya)泵(beng)(beng)出口處止(zhi)回閥(fa)(fa)和(he)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)(qian)(qian)閥(fa)(fa),當(dang)(dang)用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)運行(xing)時,即用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)增壓(ya)泵(beng)(beng)啟(qi)動(dong)時,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)(qian)(qian)閥(fa)(fa)通電(dian)(dian),當(dang)(dang)用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)內(nei)壓(ya)力超過(guo)定(ding)壓(ya)壓(ya)力(確(que)保用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)不(bu)倒空)后,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)(qian)(qian)閥(fa)(fa)自動(dong)開啟(qi),用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)回水(shui)經閥(fa)(fa)前(qian)(qian)(qian)閥(fa)(fa)定(ding)壓(ya)為用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)的(de)定(ding)壓(ya)壓(ya)力,并容積式換熱(re)(re)器(qi)減壓(ya)至(zhi)和(he)熱(re)(re)網回水(shui)管壓(ya)力相同(tong);當(dang)(dang)用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)容積式換熱(re)(re)器(qi)增壓(ya)泵(beng)(beng)停止(zhi)運行(xing)時,電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前(qian)(qian)(qian)閥(fa)(fa)斷電(dian)(dian)自動(dong)關閉,這樣用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)內(nei)的(de)水(shui)就被密(mi)閉起來(lai),如果不(bu)漏(lou)水(shui),可保證用(yong)容積式換熱(re)(re)器(qi)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)統(tong)(tong)(tong)內(nei)壓(ya)力在(zai)(zai)較長時間(jian)維持在(zai)(zai)定(ding)壓(ya)壓(ya)力左右。也(ye)就是(shi)說(shuo),不(bu)論增壓(ya)冪(mi)運行(xing)還(huan)是(shi)不(bu)運行(xing),用(yong)戶(hu)(hu)(hu)(hu)(hu)(hu)系(xi)締內(nei)的(de)壓(ya)力都町(ding)堆持在(zai)(zai)倧壓(ya)壓(ya)力范圍內(nei)。
在(zai)實(shi)際應(ying)(ying)用(yong)(yong)工況下,想要選擇一臺換熱(re)(re)器(qi)(qi)使它滿足理論情(qing)況下換熱(re)(re)器(qi)(qi)選型(xing)所(suo)(suo)具(ju)備的(de)(de)(de)(de)所(suo)(suo)有要求(qiu)幾乎是不(bu)可能(neng)(neng)的(de)(de)(de)(de)。一般(ban)情(qing)況下,我們在(zai)幫(bang)換熱(re)(re)器(qi)(qi)選型(xing)時,在(zai)滿足生產工藝條件的(de)(de)(de)(de)前提下,僅考慮(lv)一個或幾個相對重(zhong)要的(de)(de)(de)(de)因(yin)素就可以(yi)了。所(suo)(suo)謂重(zhong)要影響因(yin)素具(ju)有不(bu)確定(ding)性,是相對而言的(de)(de)(de)(de),通(tong)常是由設置換熱(re)(re)器(qi)(qi)的(de)(de)(de)(de)目的(de)(de)(de)(de)來(lai)確定(ding)的(de)(de)(de)(de)。換熱(re)(re)器(qi)(qi)應(ying)(ying)容易維護(hu)。這就要求(qiu)換熱(re)(re)器(qi)(qi)容易清(qing)理,對于易腐蝕、強震動等破壞的(de)(de)(de)(de)原件應(ying)(ying)易于更換,換熱(re)(re)器(qi)(qi)應(ying)(ying)滿足工程實(shi)際場(chang)(chang)地的(de)(de)(de)(de)要求(qiu)。選用(yong)(yong)換熱(re)(re)器(qi)(qi)時應(ying)(ying)根據場(chang)(chang)地的(de)(de)(de)(de)限制考慮(lv)換熱(re)(re)器(qi)(qi)的(de)(de)(de)(de)直徑(jing)、長(chang)度(du)、重(zhong)量(liang)和換熱(re)(re)管結構等。換熱(re)(re)器(qi)(qi)應(ying)(ying)盡(jin)可能(neng)(neng)的(de)(de)(de)(de)經(jing)濟。選用(yong)(yong)時應(ying)(ying)綜合考慮(lv)換熱(re)(re)器(qi)(qi)的(de)(de)(de)(de)制造成本、安裝費(fei)用(yong)(yong)、維護(hu)費(fei)用(yong)(yong)等,應(ying)(ying)使換熱(re)(re)器(qi)(qi)盡(jin)可能(neng)(neng)的(de)(de)(de)(de)經(jing)濟。
波紋管(guan)(guan)即臥(wo)式(shi)容(rong)積式(shi)換(huan)(huan)熱(re)(re)(re)(re)(re)器(qi)分為(wei)S型(xing)(xing)與H型(xing)(xing)。S型(xing)(xing)臥(wo)罐提供(gong)汽(qi)(qi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)用(yong),H型(xing)(xing)臥(wo)罐提供(gong)水(shui)(shui)(shui)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)用(yong)。臥(wo)式(shi)容(rong)積式(shi)換(huan)(huan)熱(re)(re)(re)(re)(re)器(qi)性(xing)能特(te)點(dian):1.換(huan)(huan)熱(re)(re)(re)(re)(re)量(liang)(liang)大。H型(xing)(xing)“新(xin)(xin)(xin)臥(wo)罐、水(shui)(shui)(shui)一(yi)(yi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)時(shi),換(huan)(huan)熱(re)(re)(re)(re)(re)量(liang)(liang)為(wei)同型(xing)(xing)“標(biao)準臥(wo)罐”的(de)2倍以上,S型(xing)(xing)“新(xin)(xin)(xin)臥(wo)罐”汽(qi)(qi)一(yi)(yi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)時(shi),換(huan)(huan)熱(re)(re)(re)(re)(re)量(liang)(liang)為(wei)同型(xing)(xing)“標(biao)準臥(wo)罐”的(de)1.2倍。2.熱(re)(re)(re)(re)(re)媒溫降大。汽(qi)(qi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)時(shi),凝(ning)結水(shui)(shui)(shui)出水(shui)(shui)(shui)溫度(du)約(yue)50℃,回(hui)水(shui)(shui)(shui)管(guan)(guan)上不需(xu)設疏水(shui)(shui)(shui)器(qi),給使用(yong)維修帶來方便,水(shui)(shui)(shui)一(yi)(yi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)時(shi),熱(re)(re)(re)(re)(re)媒溫降為(wei)同型(xing)(xing)“標(biao)準臥(wo)罐”的(de)2?2.5倍,120?150℃的(de)高溫熱(re)(re)(re)(re)(re)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)后可降70?75℃。3.H型(xing)(xing)“新(xin)(xin)(xin)臥(wo)罐”適用(yong)于水(shui)(shui)(shui)一(yi)(yi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re),亦可用(yong)于汽(qi)(qi)一(yi)(yi)水(shui)(shui)(shui)換(huan)(huan)熱(re)(re)(re)(re)(re)。4.換(huan)(huan)熱(re)(re)(re)(re)(re)效果好,散熱(re)(re)(re)(re)(re)損(sun)失少,節能。同時(shi),以蒸汽(qi)(qi)為(wei)熱(re)(re)(re)(re)(re)媒時(shi),能回(hui)收約(yue)占整(zheng)個換(huan)(huan)熱(re)(re)(re)(re)(re)量(liang)(liang)的(de)15%的(de)凝(ning)結水(shui)(shui)(shui)熱(re)(re)(re)(re)(re)量(liang)(liang)。
1、挖孔:在確定了最好生活熱水設備內漏點的位置后,從換熱器外層對應著漏點的地方,開始割孔,順序是由外向里,一直割到有內漏點的那一層為止。割出的孔應為橢圓形,且尺寸的大小是外層大,向里逐漸小,一般每層板上孔的大小相差40mm,如漏點位置較深,在外層割出的孔應較大。換熱器內漏處的3種處理辦法2、清渣:在割完孔后,應對留在每層板上的氧化渣認真進行清理,這是在對焊回補板時,回補板與每層螺旋板能否貼緊焊牢的關鍵,可用鏨子和修整模具用的小手砂輪清理氧化渣,注意應盡量將清理的渣子清出,不讓其掉進換熱器內。換熱器內漏處的3種處理辦法3、配回補板:換熱器內漏處的3種處理辦法為保證修理的質量,從換熱器上每層割下來的板料,不再使用,【主詞價格】重新配(pei)回補板(ban),另配(pei)的(de)回補板(ban)要(yao)用與換(huan)熱器(qi)螺旋板(ban)相同(tong)的(de)材料(liao)和(he)板(ban)厚,其周邊應比(bi)換(huan)熱器(qi)上每(mei)層(ceng)割(ge)出的(de)孔分別大15mm-20mm,且(qie)也為橢圓形,并做成(cheng)和(he)換(huan)熱器(qi)每(mei)層(ceng)螺旋板(ban)弧度相一(yi)致的(de)弧形。