1、聚氨酯泡(pao)沫塑料保温
该材(cai)料用于直(zhi)埋管(guan)(guan)段(duan)的保(bao)温(wen)(wen)(wen)。在工(gong)(gong)程中(zhong)的直(zhi)埋保(bao)温(wen)(wen)(wen)防(fang)腐(fu)管(guan)(guan)道,简称管(guan)(guan)中(zhong)管(guan)(guan),是指在钢管(guan)(guan)外壁涂覆防(fang)腐(fu)层、保(bao)温(wen)(wen)(wen)层与抗压层的复(fu)合管(guan)(guan)材(cai)。它具有热(re)损失小,抗压性能强,防(fang)腐(fu)防(fang)水(shui)(shui)性能好等(deng)特点(dian),特别适合地下水(shui)(shui)位高(gao)的地区。它与传统的地沟(gou)敷设管(guan)(guan)道相比,具有保(bao)温(wen)(wen)(wen)性能好、防(fang)腐(fu)、绝(jue)缘性能好、使用寿(shou)命长、施工(gong)(gong)安装简便、占地面积小、工(gong)(gong)程造价低等(deng)一系列优点(dian),已经广泛用于集中(zhong)供热(re)、输油、化(hua)工(gong)(gong)、制冷及高(gao)寒地区供水(shui)(shui)等(deng)工(gong)(gong)程,本文不做详细(xi)介绍。
2、高级橡塑保温
该(gai)材(cai)(cai)料是一种(zhong)较为理想的(de)(de)(de)绝热(re)材(cai)(cai)料,其保(bao)(bao)温(wen)材(cai)(cai)料绝热(re)效果好,对相同(tong)管道所使用(yong)的(de)(de)(de)保(bao)(bao)温(wen)厚度薄、用(yong)量少(shao);同(tong)时是整体(ti)成(cheng)型(xing)保(bao)(bao)温(wen)材(cai)(cai)料,工(gong)艺较为简单、进度快;此外高级(ji)橡塑属于(yu)绿色(se)、环保(bao)(bao)、清洁型(xing)保(bao)(bao)温(wen)材(cai)(cai)料,施工(gong)中的(de)(de)(de)废弃物较少(shao),对健(jian)康无害。该(gai)材(cai)(cai)料以突出(chu)的(de)(de)(de)优点被越(yue)来越(yue)广泛地(di)应用(yong)在空调制冷系(xi)统的(de)(de)(de)载冷剂管道、冷凝水管道的(de)(de)(de)保(bao)(bao)温(wen)上(shang)。
3、材(cai)料(liao)性能(neng)
高级橡塑属于天(tian)然无机类整体成型保(bao)温材料,采(cai)用丁晴橡胶 (NBR)和(he)聚氯乙烯 (PVC), 经过工(gong)艺发泡(pao)而成。适用于介质温度为零下5O℃~ l20℃,其闭(bi)孔式结构(gou)具有较为优(you)良(liang)的绝热性能(neng)和(he)较低的防潮吸水率。高级橡塑保(bao)温材料主要有以下优(you)点:绝热效果好(hao),防结露效果显(xian)著(zhu),宜(yi)作为保(bao)温管道的最(zui)外层;阻燃防烟、安全可靠;外观(guan)(guan)匀整、高档(dang)美(mei)观(guan)(guan);安装方便(bian)、施工(gong)快捷(jie)。