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高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)廣泛用(yong)于液體、氣體的(de)(de)(de)輸(shu)送管(guan)(guan)網， 化工(gong)管(guan)(guan)道(dao)(dao)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)工(gong)程石油、化工(gong)、集(ji)中(zhong)供(gong)(gong)熱熱網、   空(kong)調(diao)通風管(guan)(guan)道(dao)(dao)、市政(zheng)工(gong)程等。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)是(shi)一種保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)性(xing)(xing)能(neng)好，加   可(ke)靠，工(gong)程造價低的(de)(de)(de)直埋(mai)(mai)(mai)預制保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)。有(you)效(xiao)的(de)(de)(de)解(jie)決了城鎮(zhen)集(ji)中(zhong)供(gong)(gong)熱中(zhong)130℃－500℃高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)輸(shu)熱用(yong)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)的(de)(de)(de)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)、滑(hua)動潤滑(hua)和(he)裸露管(guan)(guan)端的(de)(de)(de)防水(shui)問題。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)不僅具有(you)傳(chuan)統地溝和(he)架空(kong)敷設管(guan)(guan)道(dao)(dao)難以比(bi)擬的(de)(de)(de)先進技(ji)術(shu)、實用(yong)性(xing)(xing)能(neng)，而且還具有(you)顯著(zhu)(zhu)的(de)(de)(de)社(she)會效(xiao)益(yi)和(he)經濟效(xiao)益(yi)，也是(shi)供(gong)(gong)熱節能(neng)的(de)(de)(de)有(you)力措(cuo)施。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)采用(yong)直埋(mai)(mai)(mai)供(gong)(gong)熱管(guan)(guan)道(dao)(dao)技(ji)術(shu)，標志著(zhu)(zhu)中(zhong)國供(gong)(gong)熱管(guan)(guan)道(dao)(dao)技(ji)術(shu)發展(zhan)已經進入了新的(de)(de)(de)起(qi)點。高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)是(shi)由鋼管(guan)(guan)、玻(bo)(bo)璃(li)鋼內護套、玻(bo)(bo)璃(li)鋼外(wai)殼構成，其特征是(shi)：還包括耐高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)絕熱保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)層、潤滑(hua)層、彈性(xing)(xing)密(mi)封件。本實用(yong)新型有(you)效(xiao)的(de)(de)(de)解(jie)決了城鎮(zhen)集(ji)中(zhong)供(gong)(gong)熱中(zhong)130℃－500℃高(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)輸(shu)熱用(yong)預制直埋(mai)(mai)(mai)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)的(de)(de)(de)保(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)、滑(hua)動潤滑(hua)和(he)裸露管(guan)(guan)端的(de)(de)(de)防水(shui)問題。

   　高溫(wen)(wen)預制直埋保溫(wen)(wen)管主要由四(si)部分(fen)組(zu)成。

　　（1）工(gong)作鋼(gang)(gang)管(guan)：根據輸送介質的(de)技術要求分別(bie)采用(yong)有(you)縫(feng)鋼(gang)(gang)管(guan)、無縫(feng)鋼(gang)(gang)管(guan)、雙面(mian)埋弧螺旋焊接鋼(gang)(gang)管(guan)。

　　（2）保溫層：采用(yong)硬質(zhi)聚氨酯泡沫(mo)塑料。

　　（3）保(bao)護殼：采用高密(mi)度聚(ju)乙烯或玻璃鋼。

　　（4）滲(shen)漏報(bao)(bao)警(jing)(jing)線(xian)(xian)：制造高(gao)溫(wen)預制直埋保(bao)溫(wen)管時，在靠近鋼管的(de)(de)保(bao)溫(wen)層中，埋設有(you)報(bao)(bao)警(jing)(jing)線(xian)(xian)，一旦(dan)管道某處發生滲(shen)漏，通過警(jing)(jing)報(bao)(bao)線(xian)(xian)的(de)(de)傳(chuan)導(dao)，便可在專用(yong)檢測(ce)儀(yi)表上(shang)報(bao)(bao)警(jing)(jing)并(bing)顯示(shi)出(chu)漏水的(de)(de)準(zhun)確位置和滲(shen)漏程度的(de)(de)大(da)小，以便通知檢修人員迅速處理漏水的(de)(de)管段(duan)，保(bao)證熱網(wang)   運(yun)行(xing)。