電伴熱帶怎(zen)么保(bao)證設備(bei)在低(di)溫下正常工作(zuo)呢(ni)?
伴(ban)隨電(dian)(dian)伴(ban)熱帶選擇(ze)的(de)熱帶采用耐酸、自(zi)限溫(wen)度(du)(du)(du)強化型的(de)電(dian)(dian)伴(ban)熱帶,以設定(ding)的(de)溫(wen)度(du)(du)(du)值為基準,當系統(tong)溫(wen)度(du)(du)(du)低于設定(ding)溫(wen)度(du)(du)(du)時,自(zi)動(dong)(dong)接(jie)通(tong)電(dian)(dian)路,提高配管工藝的(de)溫(wen)度(du)(du)(du)。當系統(tong)溫(wen)度(du)(du)(du)高于設定(ding)溫(wen)度(du)(du)(du)時,溫(wen)控系統(tong)會自(zi)動(dong)(dong)關閉(bi)電(dian)(dian)源,限制溫(wen)度(du)(du)(du),使設置(zhi)有電(dian)(dian)伴(ban)熱帶的(de)管道和其(qi)他儲藏設備的(de)溫(wen)度(du)(du)(du)一(yi)直不會過度(du)(du)(du)加(jia)熱,滿足工藝設定(ding)溫(wen)度(du)(du)(du)的(de)要求。
通常,我們使用的(de)電伴熱帶,其他內部有(you)2根電源母線(xian)(xian),這(zhe)2根是平(ping)行(xing)的(de)絕緣銅(tong)導線(xian)(xian),在2根平(ping)行(xing)的(de)鍍錫銅(tong)導線(xian)(xian)上擠出PTC半導體層(ceng),形成(cheng)連續(xu)的(de)供熱。 實現(xian)發(fa)熱供給。
對于(yu)電(dian)(dian)伴(ban)熱(re)帶的(de)(de)(de)(de)(de)選擇(ze),造(zao)型(xing)的(de)(de)(de)(de)(de)前提是(shi)現在管道的(de)(de)(de)(de)(de)電(dian)(dian)伴(ban)熱(re)帶技術成熟,基(ji)于(yu)電(dian)(dian)伴(ban)熱(re)帶等材料耐酸(suan)等介質(zhi)的(de)(de)(de)(de)(de)腐蝕,可以控制(zhi)溫(wen)(wen)度(du)滿足工(gong)藝(yi)要(yao)(yao)求,實現自(zi)動控制(zhi)等功能。也就是(shi)說,當(dang)溫(wen)(wen)度(du)達到(dao)平(ping)衡狀態(tai)時,電(dian)(dian)阻變(bian)為大值,無(wu)限(xian)大,該值能夠切(qie)斷電(dian)(dian)路內(nei)(nei)的(de)(de)(de)(de)(de)電(dian)(dian)流,主要(yao)(yao)相當(dang)于(yu)切(qie)斷電(dian)(dian)源(此(ci)時,電(dian)(dian)伴(ban)熱(re)帶溫(wen)(wen)度(du)已經達到(dao)最高(gao)表面溫(wen)(wen)度(du),另(ling)一(yi)方面,電(dian)(dian)路內(nei)(nei)的(de)(de)(de)(de)(de)電(dian)(dian)流變(bian)為最小(xiao))。此(ci)時,如(ru)果(guo)外部(bu)溫(wen)(wen)度(du)變(bian)化,溫(wen)(wen)度(du)低于(yu)某個值,則電(dian)(dian)伴(ban)熱(re)帶感知(zhi)外部(bu)溫(wen)(wen)度(du)并自(zi)動調節,積極加熱(re),保(bao)證所安裝的(de)(de)(de)(de)(de)配管的(de)(de)(de)(de)(de)溫(wen)(wen)度(du)在一(yi)定的(de)(de)(de)(de)(de)正常工(gong)作(zuo)范圍內(nei)(nei),內(nei)(nei)部(bu)的(de)(de)(de)(de)(de)各液體和氣體不會(hui)變(bian)為低溫(wen)(wen)而 出現凝結(jie)影響設備正常運轉。
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