天康伴熱電纜原理

1、工作(zuo)原理： 電(dian)(dian)源母線(xian)為二根平行絕緣銅線(xian)，在絕緣層中間(jian)纏(chan)繞電(dian)(dian)熱絲(si)恒功率電(dian)(dian)熱帶(dai)亦稱并聯(lian)式(shi)電(dian)(dian)熱帶(dai)

2、產品規格及主要技術指(zhi)標：

常態絕緣電阻：≥50mΩhm

介電強度：-2500V 50HZ/min

絕緣層材料：F46

電熱帶zui高耐溫(wen)：205℃

防爆標志：eдT3

防(fang)爆合格證證號：289202

供(gong)貨長(chang)度：zui長(chang)200m,電短20m

天(tian)康伴熱電纜(lan)原理

其工作原理及產品結構(gou)與RDP2-J3型恒功(gong)率電熱帶相同，所(suo)不同是其絕緣(yuan)材料采用(yong)(yong)了(le)耐(nai)(nai)高防水玻璃纖維和耐(nai)(nai)高溫(wen)(wen)于(yu)F46的(de)PFA氟塑(su)料，因此能用(yong)(yong)于(yu)溫(wen)(wen)度達260℃的(de)場所(suo)進行熱保溫(wen)(wen)，以(yi)維持一定的(de)伸質濁度，它尤其適(shi)合瀝(li)青、重粘油管(guan)線(xian)伴(ban)熱，其流體維持溫(wen)(wen)度可(ke)達180℃-250℃，該產品可(ke)用(yong)(yong)于(yu)非(fei)爆場合和工廠一區，二區爆炸(zha)氣(qi)體T3組場所(suo)。

1、型號含(han)義：每米功率為40W加強型單相高溫電熱(re)帶

2、產品規格及主要技術指(zhi)標(biao)：電熱帶zui高(gao)耐溫260℃

1.工作原理：

三根平行(xing)絕緣銅絞線(xian)(xian)為(wei)電(dian)(dian)源(yuan)母(mu)線(xian)(xian)，在內(nei)護套絕緣層外纏繞電(dian)(dian)熱絲，并(bing)將該電(dian)(dian)熱絲每(mei)隔一定(ding)距離（即“發熱節長”）分別依次(ci)與電(dian)(dian)源(yuan)母(mu)線(xian)(xian)AB-BC-CA-AB......反復循環連(lian)接，在每(mei)三相間形(xing)甩連(lian)續并(bing)聯(lian)電(dian)(dian)阻。當(dang)線(xian)(xian)母(mu)通以三相電(dian)(dian)后，各(ge)并(bing)聯(lian)電(dian)(dian)阻同時發熱，因而形(xing)成一條連(lian)續三相電(dian)(dian)的加熱帶。

2、產品規格及主要技術指(zhi)標：

常(chang)態絕(jue)緣電(dian)阻≥50mΩ/每(mei)百(bai)米

絕緣層材(cai)料(liao)：F46電熱帶(dai)zui高耐溫：250℃

供貨長度：zui長：500Mzui短：50M

介質強度：-2500V 50HZ/min

防爆標志(zhi)：e ⅡT3 防爆合格證號：289202

DXW/PZ/J 型自限(xian)式電熱帶

自限式電熱帶

型號含義：

例： DXW-PZ/J表示：絕緣材(cai)料為PTC復合性，額定工作電壓為220V、20℃時(shi)每米輸出功率20W的自限工電熱(re)帶。

工(gong)作(zuo)原(yuan)理(li)：兩根銅絞線為電(dian)(dian)(dian)(dian)源(yuan)(yuan)母線，在母線周圍擠塑(su)一(yi)層有正(zheng)溫(wen)(wen)(wen)系數特(te)(te)性的(de)(de)自限發熱(re)芯料，當接通(tong)(tong)(tong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)后，電(dian)(dian)(dian)(dian)源(yuan)(yuan)橫(heng)向通(tong)(tong)(tong)過(guo)(guo)芯料，形成了(le)一(yi)個連(lian)續的(de)(de)并聯加(jia)熱(re)體。本(ben)電(dian)(dian)(dian)(dian)熱(re)帶發熱(re)芯料采用經特(te)(te)種工(gong)藝處理(li)的(de)(de)溫(wen)(wen)(wen)度(du)(du)記憶(yi)導(dao)(dao)電(dian)(dian)(dian)(dian)分(fen)(fen)子(zi)。當電(dian)(dian)(dian)(dian)流通(tong)(tong)(tong)過(guo)(guo)網絡導(dao)(dao)電(dian)(dian)(dian)(dian)分(fen)(fen)子(zi)時，產生熱(re)量。在冷態時，電(dian)(dian)(dian)(dian)流易于通(tong)(tong)(tong)過(guo)(guo)，產生大(da)(da)量熱(re)能。隨(sui)著溫(wen)(wen)(wen)度(du)(du)升高(gao)，基體膨脹，導(dao)(dao)電(dian)(dian)(dian)(dian)分(fen)(fen)子(zi)減低(di)了(le)網絡密度(du)(du)，切斷了(le)大(da)(da)部分(fen)(fen)通(tong)(tong)(tong)路，電(dian)(dian)(dian)(dian)流減少，發熱(re)量隨(sui)之減少，由此(ci)，達到自動(dong)控制溫(wen)(wen)(wen)度(du)(du)目的(de)(de)，使加(jia)熱(re)基本(ben)超于熱(re)平(ping)衡。當溫(wen)(wen)(wen)度(du)(du)下降，溫(wen)(wen)(wen)度(du)(du)記憶(yi)導(dao)(dao)電(dian)(dian)(dian)(dian)分(fen)(fen)子(zi)再次收縮，結果，原(yuan)先切斷的(de)(de)電(dian)(dian)(dian)(dian)路有恢復(fu)接通(tong)(tong)(tong)，電(dian)(dian)(dian)(dian)流再次增(zeng)大(da)(da)，熱(re)量輸出增(zeng)加(jia)。這種特(te)(te)性稱之謂：“溫(wen)(wen)(wen)度(du)(du)自限式特(te)(te)性”，“自限式電(dian)(dian)(dian)(dian)熱(re)帶”名稱由此(ci)而(er)產生。

產品規格及主(zhu)要技術指標

1、產品規(gui)格：DXW-PZ/J自限(xian)式(shi)電(dian)熱帶(dai)

2、工作電(dian)壓：~220V

3、抗(kang)電(dian)強度：2.5kv/m（20℃）

4、電熱帶zui高耐溫：150℃

5、額定發熱量(liang)：20W/m（20℃）

6、防爆等級：“eⅡT3”防爆合格證證號：289202

DXW型自限式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶單位長度(du)上功(gong)率相等(deng)，它的功(gong)率不(bu)隨總(zong)功(gong)率愈大(da)。在(zai)現場它任意切(qie)割(ge)。該(gai)產品的“自限性能在(zai)”電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶的整根長度(du)中(zhong)處出(chu)存在(zai)，因而能有效在(zai)保(bao)證(zheng)管道的熱(re)(re)(re)(re)(re)穩定(ding)性。同時，自限式(shi)(shi)(shi)點(dian)熱(re)(re)(re)(re)(re)帶即(ji)使(shi)是互相交駐，也不(bu)會產生(sheng)過熱(re)(re)(re)(re)(re)燒壞點(dian)熱(re)(re)(re)(re)(re)帶。它可用(yong)(yong)于(yu)30℃以下會質管道伴(ban)熱(re)(re)(re)(re)(re)保(bao)溫(wen)。自限式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶和PTC材料的啟(qi)動電(dian)(dian)(dian)(dian)(dian)流性能有些(xie)相似(si)：在(zai)接通電(dian)(dian)(dian)(dian)(dian)源的瞬間會產生(sheng)較大(da)啟(qi)動電(dian)(dian)(dian)(dian)(dian)流，該(gai)電(dian)(dian)(dian)(dian)(dian)流隨著通電(dian)(dian)(dian)(dian)(dian)時間的延長逐漸變小，一(yi)般(ban)持續數秒后可降到額定(ding)值(zhi)。由于(yu)電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶一(yi)般(ban)都是直接啟(qi)動，所以DXW-PZ/J型自限式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶zui大(da)使(shi)用(yong)(yong)長度(du)100-200m。安裝電(dian)(dian)(dian)(dian)(dian)帶應與控(kong)制電(dian)(dian)(dian)(dian)(dian)器配(pei)套使(shi)用(yong)(yong)，控(kong)制電(dian)(dian)(dian)(dian)(dian)器一(yi)般(ban)有過載(zai)、短(duan)路、接地(di)、漏電(dian)(dian)(dian)(dian)(dian)保(bao)護和溫(wen)度(du)保(bao)護。自限式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)(re)帶能用(yong)(yong)于(yu)解決介(jie)溫(wen)度(du)低于(yu)30℃的管道、閥(fa)門、泵體的防(fang)冷凍和保(bao)溫(wen)，對于(yu)維持儀表管線的工藝溫(wen)度(du)尤為適用(yong)(yong)。