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恒功率電(dian)伴熱帶-旭(xu)誠(在線咨詢)

電伴熱區別于(yu)傳統的蒸汽(熱水)保溫(wen)方式，是一種(zhong)新型保溫(wen)方案(an)，在保溫(wen)領域很有(you)建樹。而(er)電伴熱能被(bei)大面(mian)積使用并且逐步取代蒸汽加熱方式是有(you)一定(ding)的原因(yin)，一定(ding)的道理的，至于(yu)為什么?好在哪?那就接(jie)著(zhu)往下看。

電(dian)(dian)伴熱VS蒸汽（熱水），電(dian)(dian)伴熱好在(zai)哪？

　　電(dian)伴熱(re)(re)是(shi)一(yi)(yi)種(zhong)有(you)效(xiao)的(de)(de)(de)管道保溫(wen)及防(fang)凍方案，一(yi)(yi)直(zhi)被(bei)大批量(liang)應用(yong)(yong)。電(dian)伴熱(re)(re)溫(wen)度梯度小，熱(re)(re)穩定時(shi)間(jian)較長，適合長期使(shi)用(yong)(yong)，其(qi)所(suo)需的(de)(de)(de)熱(re)(re)量(liang)(電(dian)功率(lv))大大低(di)于電(dian)加熱(re)(re)。電(dian)伴熱(re)(re)具有(you)熱(re)(re)，節(jie)約能源，設計簡單，施工安裝方便，沒(mei)有(you)污染，使(shi)用(yong)(yong)壽命長，能實現(xian)遙控和自(zi)動控制(zhi)等(deng)優點，是(shi)取代蒸汽(qi)，熱(re)(re)水(shui)伴熱(re)(re)的(de)(de)(de)技(ji)術(shu)發展方向，是(shi)著重(zhong)推廣(guang)的(de)(de)(de)節(jie)能項目。其(qi)工作原理(li)是(shi)通過伴熱(re)(re)媒體散發一(yi)(yi)定的(de)(de)(de)熱(re)(re)量(liang)，通過直(zhi)接(jie)或間(jian)接(jie)的(de)(de)(de)熱(re)(re)交(jiao)換補充被(bei)伴熱(re)(re)管道的(de)(de)(de)損失，以達到(dao)升溫(wen)、保溫(wen)或防(fang)凍的(de)(de)(de)正(zheng)常工作要求。電(dian)伴熱(re)(re)是(shi)用(yong)(yong)電(dian)熱(re)(re)的(de)(de)(de)能量(liang)來補充被(bei)伴熱(re)(re)體在工藝流(liu)程中所(suo)散失的(de)(de)(de)熱(re)(re)量(liang)，從而維持流(liu)動介質合理(li)的(de)(de)(de)工藝溫(wen)度，它是(shi)一(yi)(yi)種(zhong)高新技(ji)術(shu)產(chan)品。

電(dian)(dian)伴熱帶(dai)(dai)根據(ju)結(jie)構的不(bu)(bu)同(tong)，有著不(bu)(bu)同(tong)的分類，不(bu)(bu)同(tong)的電(dian)(dian)伴熱帶(dai)(dai)有著自身的特性和適用的區域。電(dian)(dian)伴熱帶(dai)(dai)雖然都(dou)作(zuo)為保(bao)溫材料，但(dan)不(bu)(bu)同(tong)區域對電(dian)(dian)伴熱帶(dai)(dai)的要求不(bu)(bu)同(tong)，這(zhe)也(ye)是電(dian)(dian)伴熱帶(dai)(dai)有很多分類的原(yuan)因所在。具體有哪些分類，接(jie)著來看。

　　根據高(gao)(gao)分(fen)子PTC材(cai)料的(de)組(zu)成不(bu)同，自控溫加熱電纜分(fen)為(wei)低溫型(xing)和高(gao)(gao)溫型(xing)兩類。

　　市場(chang)上(shang)常見的(de)(de)有(you)以(yi)聚(ju)烯烴(jing)為基材的(de)(de)65℃溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級的(de)(de)加熱(re)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和以(yi)含氟材料為基材的(de)(de)110℃和150℃加熱(re)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。此(ci)處的(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級定(ding)義(yi)為加熱(re)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)所能(neng)有(you)效(xiao)應(ying)用(yong)的(de)(de)高(gao)環境溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)。也可(ke)以(yi)理解(jie)為電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)能(neng)夠長期(qi)穩定(ding)應(ying)用(yong)并產(chan)生有(you)效(xiao)加熱(re)功(gong)(gong)率輸(shu)出的(de)(de)高(gao)環境溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)，超(chao)(chao)過規定(ding)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級，一方(fang)面由于(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)阻，電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)本(ben)身的(de)(de)輸(shu)出功(gong)(gong)率很(hen)小，實際(ji)加熱(re)效(xiao)率很(hen)低(di)。另(ling)一方(fang)面，長期(qi)的(de)(de)超(chao)(chao)溫(wen)(wen)(wen)(wen)(wen)使(shi)(shi)用(yong)，使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)性能(neng)如(ru)：PTC特性，加熱(re)功(gong)(gong)率等(deng)劣化或(huo)衰(shuai)減，會降(jiang)低(di)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)(de)使(shi)(shi)用(yong)壽命(ming)和運(yun)行可(ke)靠性。但短期(qi)間(jian)斷地暴露于(yu)(yu)(yu)超(chao)(chao)過溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)極的(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)環境，也是可(ke)以(yi)的(de)(de)。因此(ci)，除(chu)上(shang)述(shu)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級外，自控溫(wen)(wen)(wen)(wen)(wen)加熱(re)電(dian)(dian)(dian)(dian)(dian)線，還(huan)有(you)另(ling)一個溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級。如(ru)對于(yu)(yu)(yu)65℃溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，該溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級為85℃，對于(yu)(yu)(yu)110℃溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)(du)等(deng)級的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，為130℃，而對于(yu)(yu)(yu)150℃電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，則為230℃。然而此(ci)時的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)有(you)效(xiao)輸(shu)出功(gong)(gong)率已接(jie)近于(yu)(yu)(yu)零。

電(dian)伴熱(re)就是利用電(dian)伴熱(re)設(she)備將電(dian)能轉化(hua)為熱(re)能，通(tong)過直(zhi)接或(huo)間(jian)接的(de)(de)熱(re)交換，補(bu)充被伴熱(re)設(she)備通(tong)過保溫材料所損(sun)失的(de)(de)熱(re)量，并采用溫度控(kong)制(zhi)，達到跟蹤和(he)控(kong)制(zhi)伴熱(re)設(she)備內介質的(de)(de)溫度，使之維(wei)持在(zai)一個合理(li)和(he)經濟的(de)(de)水平(ping)上。 過去，蒸(zheng)汽(qi)伴熱(re)始終是一種主要(yao)的(de)(de)保溫方式。其工作原理(li)是通(tong)過蒸(zheng)汽(qi)伴熱(re)管道(dao)散熱(re)以補(bu)充被保溫管道(dao)的(de)(de)熱(re)損(sun)失。由于(yu)蒸(zheng)汽(qi)的(de)(de)散熱(re)量不(bu)易控(kong)制(zhi)，其保溫效率(lv)始終處于(yu)一個較低(di)的(de)(de)水平(ping)。