蒸汽直埋鋼套鋼保溫管道由輸送介質的鋼管
、防腐外套鋼管以及鋼管與外套鋼管之間填充的超細玻璃棉組合而成
，也可采用石墨、矽鈣瓦管殼及填充聚氨酯泡沫複合而成。鋼套管(鋼套鋼)埋設技術是一種防水、防漏

、抗滲、kangyahequanfengbidemaishexinjishu，shizhimaifushejishuzaidixiashuiweijiaogaodiqushiyongdeyicijiaodatupo。zhimaiguandaodebaohuguandeshouyaowentishiyanmifangshuidekekaoxing，ciwaiyaoyoulianghaodejixieqiangdu，gangtaoguanyouyuqiangdugaocaiyonghanjielianjie，fangshuidemifengxingnengkekaoxingshifengao，lingwai，qinaigaowenxingnengyeshiqitawaibaohuguansuobunengbinide。zaidixiashuiweigaodediqu，weibaozhengdixiashuibuyingxiangzhengqizhimaiguandaodezhengchangyunxing，waibaohucengcaiyongjiangu
、密(mi)閉(bi)的(de)鋼(gang)管(guan)外(wai)殼(ke)。所(suo)謂(wei)上(shang)疏(shu)水(shui)就(jiu)是(shi)將(jiang)管(guan)道(dao)中(zhong)的(de)凝(ning)結(jie)水(shui)通(tong)過(guo)插(cha)入(ru)工(gong)作(zuo)鋼(gang)管(guan)中(zhong)的(de)疏(shu)水(shui)管(guan)，將(jiang)集(ji)水(shui)罐(guan)中(zhong)的(de)凝(ning)結(jie)水(shui)利(li)用(yong)管(guan)道(dao)中(zhong)的(de)背(bei)壓(ya)，將(jiang)凝(ning)結(jie)水(shui)從(cong)管(guan)道(dao)上(shang)方(fang)排(pai)出(chu)的(de)疏(shu)水(shui)裝(zhuang)置(zhi)。其(qi)結(jie)構(gou)見(jian)圖(tu)此(ci)種(zhong)結(jie)構(gou)在(zai)施(shi)工(gong)過(guo)程(cheng)中(zhong)安(an)裝(zhuang)方(fang)便(bian)，在(zai)生(sheng)產(chan)廠(chang)家(jia)內(nei)做(zuo)成(cheng)管(guan)件(jian)，現(xian)場(chang)可(ke)直(zhi)接(jie)安(an)裝(zhuang)。而(er)且(qie)因(yin)為(wei)疏(shu)水(shui)管(guan)的(de)引(yin)出(chu)點(dian)在(zai)管(guan)道(dao)上(shang)方(fang)，輸(shu)送(song)高(gao)溫(wen)熱(re)水(shui)專(zhuan)用(yong)鋼(gang)套(tao)鋼(gang)保(bao)溫(wen)鋼(gang)管(guan)，所(suo)以(yi)疏(shu)水(shui)管(guan)的(de)焊(han)接(jie)安(an)裝(zhuang)操(cao)作(zuo)更(geng)加(jia)方(fang)便(bian)。因(yin)其(qi)靠(kao)近(jin)地(di)麵(mian)

，疏(shu)水(shui)井(jing)可(ke)設(she)置(zhi)相(xiang)對(dui)較(jiao)淺(qian)
，十(shi)分(fen)便(bian)於(yu)今(jin)後(hou)維(wei)護(hu)操(cao)作(zuo)
，也(ye)減(jian)少(shao)了(le)土(tu)建(jian)施(shi)工(gong)工(gong)作(zuo)量(liang)，降(jiang)低(di)了(le)工(gong)程(cheng)成(cheng)本(ben)。此(ci)疏(shu)水(shui)裝(zhuang)置(zhi)因(yin)疏(shu)水(shui)管(guan)直(zhi)接(jie)穿(chuan)過(guo)工(gong)作(zuo)管(guan)，對(dui)蒸(zheng)汽(qi)的(de)流(liu)動(dong)產(chan)生(sheng)了(le)一(yi)定(ding)的(de)阻(zu)力(li)

，運(yun)行(xing)時(shi)因(yin)氣(qi)流(liu)衝(chong)擊(ji)疏(shu)水(shui)管(guan)會(hui)產(chan)生(sheng)震(zhen)動(dong)
，對(dui)管(guan)線(xian)的(de)運(yun)行(xing)有(you)一(yi)定(ding)的(de)影(ying)響(xiang)，但(dan)通(tong)過(guo)使(shi)用(yong)情(qing)況(kuang)看(kan)，此(ci)種(zhong)影(ying)響(xiang)不(bu)大(da)，經(jing)過(guo)10餘年的運行管線運行情況良好。

  gangtaogangfuhebaowengangguanshidixiazhimaiguandaozhongdeyizhong，caiyongmeiyouhunningtujiegoudeqingkuangxiayekeyijinxingdixiazhimaidefangshi，jigongzuogangguanderepengzhangzaiwaiguanneijinxing，congerjiangdilecailiaochengben

，suoduanleshigongriqi，bingbaozhanglegongreguandaodeanquanxing，keyizaibutongwenduhuanjingxiagenganquandeguangfanyingyong，youqishiyongyugaowenzhengqiguandaoxiangmu。shiyongwendukeda150℃-450℃。管道端口一般選用聚乙烯薄膜或三層PElengchandaimifeng

，fangzhianzhuangqianhuoshigongzhongjinruchaoqihuoshui。baowencailiaoduocengcuofengbaozha
，youxiaojianshaoleresunshi，tongshizaiwaitaobiaomiancaiqukongzhicuoshi
，fangzhilengqiaodechansheng，congershiwaitaofangfucengdewendukongzhidedaolebaozheng。yongbaowencailiaobaozhaduocenglvbofansheceng
，youxiaojianshaoleresunshi，shizhengqiguandaogengjiajingjiheli。shushuixitongcaiyongquanfengbidexingshi
，buzhilinghuo，jiegouheli，anquankekao。gangtaoguanshangdepaichaoguanjinengjishipaichuchaoshiqiti
，youkezuoweirichangyunxingdebaojingxinhaoguan。guandaoderebuchangcaiyongyouzhibowenguanbuchangqi，bingjiangqizhuangshezaitaoguannei，zuochengzhimaixingshi，wuxushezhiguanchajing，shigongcaozuofangbian
、工期短。適用於輸送2.5MPa
、350攝氏度以下的蒸汽或其它介質
，該產品用鋼管做外防護層，具有強度高，不易損壞
，施工檢修簡便，使用壽命長的優點。