保溫無縫鋼管同時它的發泡孔都是閉合的,吸水性很小。高密度聚乙烯外殼、玻璃鋼外殼均具有良好的防腐、絕緣和機械性能。保溫無縫鋼管廣泛用(yong)于液體(ti)、氣體(ti)的輸送管(guan)(guan)網,化(hua)工(gong)管(guan)(guan)道(dao)保(bao)(bao)(bao)溫(wen)工(gong)程(cheng)石油、化(hua)工(gong)、集中供熱熱網、空(kong)調(diao)通風管(guan)(guan)道(dao)、市政(zheng)工(gong)程(cheng)等(deng)。高溫(wen)預制直埋(mai)保(bao)(bao)(bao)溫(wen)管(guan)(guan)是一種保(bao)(bao)(bao)溫(wen)性能好,加(jia)安全(quan)可靠(kao),工(gong)程(cheng)造價低的直埋(mai)預制保(bao)(bao)(bao)溫(wen)管(guan)(guan)。熱力工(gong)程(cheng)用(yong)聚(ju)(ju)氨酯保(bao)(bao)(bao)溫(wen)管(guan)(guan)制作環境溫(wen)度(du)控(kong)制在28度(du)左右,這種溫(wen)度(du)下生產的聚(ju)(ju)氨酯保(bao)(bao)(bao)溫(wen)鋼管(guan)(guan)聚(ju)(ju)氨酯泡沫閉孔率(lv)高,可達到98%以上,充分保(bao)(bao)(bao)證聚(ju)(ju)氨酯保(bao)(bao)(bao)溫(wen)鋼管(guan)(guan)的保(bao)(bao)(bao)溫(wen)能力。
聚(ju)氨(an)脂保(bao)(bao)溫(wen)(wen)(wen)是一(yi)(yi)種性(xing)(xing)能高(gao),導熱(re)(re)系數低的(de)產品,其性(xing)(xing)能優越廣泛應用(yong)于(yu)各(ge)種保(bao)(bao)溫(wen)(wen)(wen)工程,其發展(zhan)歷程可(ke)見一(yi)(yi)斑(ban),初(chu)在(zai)發達(da)**,在(zai)上世紀70年代初(chu)期(qi)人(ren)們(men)開始研究熱(re)(re)損(sun)失減(jian)小的(de)方法,經過幾年奮斗終于(yu)發明(ming)了(le)(le)玻(bo)璃棉保(bao)(bao)溫(wen)(wen)(wen),玻(bo)璃棉纏繞在(zai)鋼(gang)管(guan)(guan)外(wai)壁損(sun)失可(ke)減(jian)少40%-50%,大大提高(gao)了(le)(le)供熱(re)(re)效(xiao)率,提高(gao)了(le)(le)發熱(re)(re)率,是保(bao)(bao)溫(wen)(wen)(wen)鋼(gang)管(guan)(guan)的(de)一(yi)(yi)大進步(bu),隨(sui)著取暖戶增加(jia),人(ren)們(men)逐漸意識到,供暖末(mo)端實際利(li)用(yong)率,還不到出管(guan)(guan)熱(re)(re)時5%,為此(ci)(ci)各(ge)專家(jia)學者紛紛提議,參議,進行第二次保(bao)(bao)溫(wen)(wen)(wen)改革,到了(le)(le)90年代人(ren)們(men)發現了(le)(le)一(yi)(yi)種利(li)用(yong)率更(geng)高(gao),質量(liang)更(geng)輕,施工更(geng)方便的(de)保(bao)(bao)溫(wen)(wen)(wen)鋼(gang)管(guan)(guan)的(de)材(cai)料(liao)(liao)(liao),就是今(jin)(jin)(jin)天(tian)我們(men)國內還一(yi)(yi)直用(yong)的(de)聚(ju)氨(an)脂保(bao)(bao)溫(wen)(wen)(wen)鋼(gang)管(guan)(guan),這種材(cai)料(liao)(liao)(liao)使用(yong)至今(jin)(jin)(jin)已有幾十年,在(zai)工業(ye)**如此(ci)(ci)成(cheng)熟的(de)今(jin)(jin)(jin)天(tian),此(ci)(ci)技(ji)術能充分使用(yong)這么多(duo)年,說(shuo)明(ming)此(ci)(ci)材(cai)料(liao)(liao)(liao)可(ke)靠性(xing)(xing)強。