自限電(dian)(dian)(dian)熱(re)(re)(re)(re)帶(dai)是(shi)目(mu)前電(dian)(dian)(dian)伴(ban)熱(re)(re)(re)(re)行業中***經(jing)濟環保(bao)(bao)的(de)電(dian)(dian)(dian)伴(ban)熱(re)(re)(re)(re)帶(dai),經(jing)濟是(shi)因(yin)為(wei)(wei)它(ta)無論價(jia)格,安裝維護成本,用(yong)電(dian)(dian)(dian)量均比恒功率電(dian)(dian)(dian)熱(re)(re)(re)(re)帶(dai)同(tong)性質產(chan)(chan)品與其他伴(ban)熱(re)(re)(re)(re)產(chan)(chan)品都(dou)更實惠,它(ta)較(jiao)大的(de)優點(dian)在于(yu)不需要溫(wen)控裝置,環保(bao)(bao)在于(yu)它(ta)區別與恒功率電(dian)(dian)(dian)熱(re)(re)(re)(re)帶(dai)所采用(yong)的(de)氟材(cai)料不同(tong)均為(wei)(wei)環保(bao)(bao)料,無任何污染環境成分,在供(gong)熱(re)(re)(re)(re)的(de)時(shi)候不會產(chan)(chan)生異味(wei),更加(jia)適合(he)一般家庭用(yong)戶使用(yong)。雖然(ran),自限溫(wen)電(dian)(dian)(dian)熱(re)(re)(re)(re)帶(dai)是(shi)節能環保(bao)(bao)型的(de)電(dian)(dian)(dian)熱(re)(re)(re)(re)帶(dai),但很(hen)多客戶因(yin)為(wei)(wei)對(dui)此類型的(de)產(chan)(chan)品并不了解。

自(zi)限(xian)溫電熱帶(dai)的工作原理:
其(qi)特(te)(te)性(xing)是(shi)導(dao)(dao)電高(gao)(gao)分子復合材(cai)料具有正(zheng)(zheng)溫(wen)(wen)度(du)(du)系(xi)數(shu)PTC特(te)(te)性(xing),能(neng)隨被加(jia)熱體系(xi)的(de)(de)溫(wen)(wen)度(du)(du)變化自動(dong)(dong)調節輸出功率,自動(dong)(dong)限制(zhi)加(jia)熱溫(wen)(wen)度(du)(du)。PTC特(te)(te)性(xing)即(ji)正(zheng)(zheng)溫(wen)(wen)度(du)(du)系(xi)數(shu)效應,是(shi)指材(cai)料電阻(zu)率隨著(zhu)溫(wen)(wen)度(du)(du)的(de)(de)升(sheng)(sheng)高(gao)(gao)而增大(da)(da),并在一定(ding)的(de)(de)溫(wen)(wen)度(du)(du)區間內(nei)電阻(zu)急劇增大(da)(da)的(de)(de)特(te)(te)性(xing)。當(dang)環境(jing)溫(wen)(wen)度(du)(du)升(sheng)(sheng)高(gao)(gao)時(shi),其(qi)阻(zu)值也隨之上升(sheng)(sheng),產(chan)生的(de)(de)熱量(liang)降(jiang)低,當(dang)環境(jing)溫(wen)(wen)度(du)(du)升(sheng)(sheng)高(gao)(gao)到一定(ding)值時(shi),半導(dao)(dao)電塑料內(nei)電流降(jiang)到***小(xiao)值,伴熱帶產(chan)生的(de)(de)熱量(liang)接近于零。
自限溫(wen)電(dian)(dian)熱(re)帶(dai)(dai)根據溫(wen)度65度,105度為上限分(fen)為低(di)溫(wen),中溫(wen)型電(dian)(dian)熱(re)帶(dai)(dai)。所(suo)以(yi)伴熱(re)溫(wen)度不會(hui)出現過(guo)高的(de)(de)情況(kuang),因(yin)考慮實(shi)際存(cun)在三分(fen)之(zhi)一的(de)(de)熱(re)損耗(hao),即(ji)使(shi)是在無(wu)溫(wen)控(kong)器控(kong)制的(de)(de)情況(kuang)下,維持溫(wen)度不會(hui)過(guo)高,而再達到熱(re)平(ping)衡(heng)時候,電(dian)(dian)熱(re)帶(dai)(dai)的(de)(de)芯帶(dai)(dai)電(dian)(dian)阻(zu)會(hui)增大,電(dian)(dian)流(liu)會(hui)變(bian)小。長期(qi)(qi)通(tong)電(dian)(dian)情況(kuang)下使(shi)溫(wen)度維持平(ping)衡(heng),所(suo)以(yi)功率會(hui)變(bian)得比較小,所(suo)以(yi)自限溫(wen)電(dian)(dian)熱(re)帶(dai)(dai)即(ji)使(shi)長期(qi)(qi)通(tong)電(dian)(dian)也能省電(dian)(dian)的(de)(de)經濟環保型電(dian)(dian)熱(re)帶(dai)(dai)。

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