工業管道使用電伴(ban)熱保(bao)溫原(yuan)因

  工(gong)(gong)(gong)業(ye)管(guan)(guan)道(dao)（亦稱：工(gong)(gong)(gong)業(ye)配管(guan)(guan)），是(shi)工(gong)(gong)(gong)業(ye)（石油、化工(gong)(gong)(gong)、輕工(gong)(gong)(gong)、制藥、礦山等）企業(ye)內(nei)所有管(guan)(guan)狀設(she)施的(de)總稱。由于外界環境溫度影響管(guan)(guan)道(dao)里面介(jie)質會出現(xian)凍堵現(xian)象給管(guan)(guan)道(dao)流通帶來了障礙，需(xu)要使(shi)用電伴熱等保溫方式來維持(chi)管(guan)(guan)道(dao)里面的(de)溫度。

  電(dian)(dian)(dian)(dian)伴(ban)熱(re)系統(tong)主要(yao)有(you)電(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)(dai)和相關配件組成，電(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)(dai)使用(yong)(yong)簡單方便，廣泛應用(yong)(yong)于液體(ti)管道的防凍(dong)防凝。在電(dian)(dian)(dian)(dian)伴(ban)熱(re)產(chan)品中，分為自限溫電(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)(dai)和恒功(gong)率(lv)電(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)(dai)，那么，恒功(gong)率(lv)電(dian)(dian)(dian)(dian)伴(ban)熱(re)帶(dai)(dai)都有(you)哪些特點呢？

  恒功率(lv)點(dian)電伴熱帶特點(dian)

  恒功率電伴熱帶分為兩類：并聯恒功率電伴熱帶和串聯恒功率電伴熱帶。

  并(bing)聯(lian)恒功率(lv)電(dian)伴熱(re)(re)帶(dai)由(you)七(qi)部分組成：鍍錫銅絞線、芯線絕緣護套(tao)、內護套(tao)、發熱(re)(re)絲(si)(si)(si)、外護套(tao)、編織層(ceng)、外護套(tao)。并(bing)聯(lian)恒功率(lv)電(dian)阻(zu)絲(si)(si)(si)連接(jie)方式為并(bing)聯(lian)，由(you)兩根平行的鍍錫銅絲(si)(si)(si)包(bao)在(zai)F46絕緣層(ceng)內，為電(dian)源母線，鎳鉻合(he)金電(dian)熱(re)(re)絲(si)(si)(si)纏繞在(zai)外護套(tao)上，電(dian)熱(re)(re)絲(si)(si)(si)每隔一(yi)個固定距離焊(han)接(jie)，形成一(yi)個連續的并(bing)聯(lian)電(dian)阻(zu)。當電(dian)源銅母線通電(dian)時，并(bing)聯(lian)電(dian)阻(zu)會隨之發熱(re)(re)，即形成一(yi)個連續的加熱(re)(re)帶(dai)。

  串聯恒功率(lv)電(dian)伴熱(re)(re)帶由五個(ge)部分組(zu)成：鍍(du)錫銅絞(jiao)線(xian)、芯線(xian)絕緣護(hu)套、內護(hu)套、編織層、外護(hu)套。串聯恒功率(lv)電(dian)阻絲連接方式為串聯，隨著通電(dian)時間的(de)延長，它不斷發熱(re)(re)，形成連續均勻發熱(re)(re)的(de)電(dian)伴熱(re)(re)帶。

  然(ran)而，無論是(shi)并聯(lian)恒(heng)(heng)功率還(huan)是(shi)串聯(lian)恒(heng)(heng)功率，它們(men)的(de)輸出功率一直(zhi)都是(shi)恒(heng)(heng)定的(de)，不會(hui)因周圍溫(wen)度(du)(du)環(huan)境的(de)變化而改變。因此恒(heng)(heng)功率電伴熱帶主要適用于溫(wen)度(du)(du)要求較(jiao)高，現場環(huan)境比較(jiao)復雜的(de)場合(he)。