地熱地板的工作原理

地(di)熱地(di)板(ban)又被(bei)稱(cheng)為地(di)熱采(cai)暖(nuan)地(di)板(ban)或低(di)溫熱水輻射采(cai)暖(nuan)地(di)板(ban)，屬于一種(zhong)利用建筑(zhu)物(wu)內部地(di)面進行采(cai)暖(nuan)的(de)系統。

地(di)(di)熱地(di)(di)板的(de)工(gong)作原理(li)是(shi)將整個地(di)(di)面作為散熱器(qi)在(zai)(zai)地(di)(di)板結構(gou)層內鋪設(she)管道(dao)，通(tong)過(guo)往管道(dao)內注入(ru)60℃以下的(de)低(di)溫(wen)熱水，加熱地(di)(di)板混(hun)凝土層使(shi)(shi)地(di)(di)面溫(wen)度(du)保持(chi)在(zai)(zai)26℃左右，使(shi)(shi)人感覺溫(wen)暖舒服，讓室內溫(wen)度(du)均勻上升，給(gei)人腳暖頭涼的(de)感覺，符合人體生理(li)科學。

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地熱地板厚度是多少

一(yi)般來說，地(di)板(ban)(ban)的(de)(de)厚度(du)越小，其熱流量就越大(da)。地(di)板(ban)(ban)的(de)(de)厚度(du)是否影響地(di)熱地(di)板(ban)(ban)的(de)(de)導(dao)熱性？有(you)消費(fei)者表示，厚一(yi)點(dian)的(de)(de)地(di)板(ban)(ban)腳感(gan)好，但12mm以上(shang)厚度(du)的(de)(de)地(di)板(ban)(ban)會不(bu)會造成導(dao)熱不(bu)暢，所以不(bu)知該如何取舍。

為了增加導熱量，墊層材料和地板厚度不宜(yi)過厚，地熱地板的標(biao)準厚度為6.5～8.5mm，強化復合(he)地板應為6～8mm，三層實木復合(he)地板8～9mm。建議消費(fei)者在謹慎選用(yong)的同時(shi)，盡量選用(yong)小尺寸，最(zui)好是(shi)200×40×10拼成的方形或人字形，使其(qi)熱變形均勻。

厚度(du)不(bu)超(chao)(chao)過(guo)(guo)超(chao)(chao)過(guo)(guo)14毫(hao)(hao)米(mi)。一是(shi)推(tui)薦7至8毫(hao)(hao)米(mi)厚的(de)強(qiang)化木地(di)板，二是(shi)推(tui)薦8至12毫(hao)(hao)米(mi)厚的(de)三層(ceng)或多層(ceng)實木復合(he)地(di)板。據了解，地(di)暖原理是(shi)通(tong)過(guo)(guo)低溫輻射(she)傳遞熱能，木材本身屬(shu)于不(bu)良導體。所(suo)以(yi)，這就要求地(di)熱地(di)板不(bu)能太厚。當厚度(du)超(chao)(chao)過(guo)(guo)14毫(hao)(hao)米(mi)時，輻射(she)熱能很難到達地(di)板表層(ceng)，熱能利用率低，取(qu)暖效(xiao)果就會(hui)不(bu)理想。

作為地(di)(di)熱(re)地(di)(di)板(ban)，最好不(bu)要選擇太(tai)寬或過長的(de)(de)地(di)(di)板(ban)，地(di)(di)板(ban)的(de)(de)尺寸越(yue)(yue)大，在(zai)地(di)(di)熱(re)環境產生(sheng)(sheng)的(de)(de)縫(feng)隙(xi)也(ye)越(yue)(yue)大。尤其是(shi)寬面(mian)獨幅的(de)(de)三層(ceng)實木復(fu)合地(di)(di)板(ban)，如果其面(mian)層(ceng)的(de)(de)含水率(lv)(lv)應該控制在(zai)8%以下，否(fou)則會出現地(di)(di)板(ban)面(mian)層(ceng)開裂。在(zai)地(di)(di)熱(re)條件下也(ye)會產生(sheng)(sheng)開裂。因此，作為地(di)(di)熱(re)用的(de)(de)三層(ceng)實木復(fu)合地(di)(di)板(ban)在(zai)生(sheng)(sheng)產時，要嚴格(ge)控制面(mian)層(ceng)的(de)(de)含水率(lv)(lv)。

在地(di)(di)(di)(di)(di)熱(re)條(tiao)件(jian)下(xia)，當地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)的(de)(de)含(han)水(shui)率發生變(bian)化時(shi)，板(ban)(ban)(ban)(ban)條(tiao)的(de)(de)膨脹(zhang)量不(bu)同，地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)的(de)(de)板(ban)(ban)(ban)(ban)面上會(hui)出(chu)現(xian)明顯的(de)(de)肋骨狀波(bo)紋。如果(guo)三(san)層(ceng)實(shi)木(mu)復(fu)合(he)(he)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)面層(ceng)厚度(du)在3mm以上，就不(bu)易出(chu)現(xian)這種(zhong)現(xian)象(xiang)。所以，面層(ceng)厚度(du)為3mm及其以下(xia)的(de)(de)三(san)層(ceng)實(shi)木(mu)復(fu)合(he)(he)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)并不(bu)適合(he)(he)作為地(di)(di)(di)(di)(di)熱(re)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)，而7層(ceng)~11層(ceng)實(shi)木(mu)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)(ban)比較(jiao)適用地(di)(di)(di)(di)(di)熱(re)采暖(nuan)。