聚氨酯保溫管如何焊接補口

  聚氨脂保熱管的錫焊是*建筑項目品質的的關鍵工做。在預設直埋途徑鋪設的建設項目作業中  不同井室的建設項目作業品質直接性直接影響途徑鋪設的建筑項目品質和利用平均壽命，不變支撐架  這樣井室防潮、防水性不易，部位是因為洪澇災害而受損。  故此，應較真建設項目作業，保障建設項目作業品質。  在真讓人認可的的條件下，需求特別注意直埋保熱途徑鋪設的預設。  先是，沖干凈水以排出來空氣當中，那么分二步開始:在維持負擔的10min內不滲漏。  的強度實驗室檢測:將途徑鋪設負擔增長到工做負擔的1.5倍后；用1KG重的錘子在焊接縫旁邊逐行叩擊和體檢焊接縫。氣密性能性實驗室檢測:當途徑鋪設內負擔降*工做負擔時，30min內無流出，壓降不突破0.2大氣層壓，完成。應按標準規范需要準備好試壓計錄  仍然預設直埋保熱管埋在地面下，本建筑項目被認可。  大都數是隱檢建筑項目。這樣完工了初驗不較真，完工了材質 不基本。 

將影(ying)響未來(lai)(lai)的(de)(de)(de)(de)(de)使用(yong)  接(jie)縫和(he)(he)(he)(he)(he)回填(tian)土應在(zai)管(guan)(guan)(guan)道(dao)中(zhong)(zhong)進行壓力測試  竣(jun)工(gong)(gong)后(hou)才能(neng)進行竣(jun)工(gong)(gong)測量和(he)(he)(he)(he)(he)清理，根據聚(ju)氨酯(zhi)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)施(shi)工(gong)(gong)特點(dian)，必(bi)須回填(tian)規定厚度(du)(du)(du)的(de)(de)(de)(de)(de)砂(sha)。從不偷工(gong)(gong)減(jian)料(liao)。對此必(bi)須給(gei)予足夠(gou)的(de)(de)(de)(de)(de)重視  預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)的(de)(de)(de)(de)(de)現(xian)場(chang)接(jie)頭保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)只能(neng)在(zai)試壓合格后(hou)進行，并進行現(xian)場(chang)接(jie)頭保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)施(shi)工(gong)(gong)  該項是預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)特殊(shu)施(shi)工(gong)(gong)質(zhi)量直(zhi)(zhi)接(jie)影(ying)響其使用(yong)壽命。  保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)層(ceng)(ceng)有兩種施(shi)工(gong)(gong)方(fang)法:現(xian)場(chang)發(fa)泡施(shi)工(gong)(gong)和(he)(he)(he)(he)(he)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)瓦施(shi)工(gong)(gong)。無論采用(yong)哪種施(shi)工(gong)(gong)方(fang)法，都(dou)不存在(zai)環(huan)空(kong)、開裂(lie)、脫層(ceng)(ceng)等缺陷(xian)。養護層(ceng)(ceng)的(de)(de)(de)(de)(de)方(fang)法很多(duo)(如高(gao)(gao)(gao)密(mi)度(du)(du)(du)聚(ju)乙烯和(he)(he)(he)(he)(he)玻璃鋼保(bao)(bao)(bao)(bao)(bao)護層(ceng)(ceng))，但必(bi)須*接(jie)縫的(de)(de)(de)(de)(de)完整性、緊(jin)密(mi)性和(he)(he)(he)(he)(he)防(fang)水性。  聚(ju)氨酯(zhi)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)啟(qi)動(dong)速度(du)(du)(du)較慢，通(tong)常(chang)發(fa)生在(zai)秋(qiu)冬季節或早(zao)上，因為(wei)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)突然下(xia)降或較低(di)。  這個問題可以(yi)通(tong)過提(ti)高(gao)(gao)(gao)環(huan)境溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)和(he)(he)(he)(he)(he)黑色(se)材料(liao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)來(lai)(lai)解決。  [/小時/]一(yi)般情況下(xia)，黑色(se)物料(liao)的(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)升(sheng)*30-60℃，環(huan)境溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)升(sheng)*20-30℃  保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)道(dao)廣(guang)泛應用(yong)于液(ye)體和(he)(he)(he)(he)(he)氣體輸送管(guan)(guan)(guan)道(dao)、化(hua)工(gong)(gong)管(guan)(guan)(guan)道(dao)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)工(gong)(gong)程(cheng)、石(shi)油(you)、化(hua)工(gong)(gong)、集(ji)中(zhong)(zhong)供應、*空(kong)調和(he)(he)(he)(he)(he)通(tong)風管(guan)(guan)(guan)道(dao)、市政(zheng)工(gong)(gong)程(cheng)等。  高(gao)(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)是一(yi)種保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)性能(neng)好、安全(quan)可靠、工(gong)(gong)程(cheng)造價(jia)低(di)的(de)(de)(de)(de)(de)直(zhi)(zhi)埋(mai)預(yu)(yu)制(zhi)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)  有效解決了城(cheng)市集(ji)中(zhong)(zhong)供熱(re)中(zhong)(zhong)130-600℃高(gao)(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)傳(chuan)(chuan)熱(re)用(yong)預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)管(guan)(guan)(guan)端的(de)(de)(de)(de)(de)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)、滑(hua)動(dong)潤滑(hua)和(he)(he)(he)(he)(he)防(fang)水問題。  高(gao)(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)不僅具有傳(chuan)(chuan)統管(guan)(guan)(guan)溝和(he)(he)(he)(he)(he)架空(kong)敷設管(guan)(guan)(guan)道(dao)無法比擬(ni)的(de)(de)(de)(de)(de)先進技(ji)術和(he)(he)(he)(he)(he)實用(yong)性能(neng)，而(er)且具有顯著的(de)(de)(de)(de)(de)社(she)會和(he)(he)(he)(he)(he)經濟效益，是供熱(re)和(he)(he)(he)(he)(he)節能(neng)的(de)(de)(de)(de)(de)有力措施(shi)。  高(gao)(gao)(gao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)預(yu)(yu)制(zhi)直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)(bao)溫(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)管(guan)(guan)(guan)采用(yong)直(zhi)(zhi)埋(mai)供熱(re)管(guan)(guan)(guan)道(dao)技(ji)術，標志著我國(guo)供熱(re)管(guan)(guan)(guan)道(dao)技(ji)術的(de)(de)(de)(de)(de)發(fa)展進入了一(yi)個新(xin)的(de)(de)(de)(de)(de)起點(dian)。  隔熱(re)保(bao)(bao)(bao)(bao)(bao)護層(ceng)(ceng)的(de)(de)(de)(de)(de)工(gong)(gong)程(cheng)實踐(jian)缺陷(xian)大(da)，工(gong)(gong)程(cheng)成本低(di)。 

被(bei)許多施工(gong)(gong)方采用。如果(guo)(guo)保溫層是(shi)(shi)硅(gui)酸(suan)鋁氈，外(wai)(wai)層是(shi)(shi)耐高溫聚氨酯，*更好。只要用手粘(zhan)貼的(de)玻(bo)(bo)璃(li)鋼不(bu)(bu)透(tou)(tou)水，也(ye)可以使(shi)(shi)用。如果(guo)(guo)絕熱(re)(re)層是(shi)(shi)巖棉或巖棉外(wai)(wai)側的(de)聚氨酯泡(pao)沫復(fu)合絕熱(re)(re)層，由于絕熱(re)(re)層不(bu)(bu)能承受(shou)載荷，如果(guo)(guo)是(shi)(shi)蒸(zheng)汽管(guan)(guan)道(dao)，必然會導致管(guan)(guan)道(dao)下(xia)側的(de)絕熱(re)(re)層被(bei)壓縮，導致玻(bo)(bo)璃(li)鋼溫度過(guo)高，一段(duan)時間后機械(xie)(xie)強度會降(jiang)低。玻(bo)(bo)璃(li)纖維增強塑料由于土壤(rang)沉降(jiang)而開裂，并伴隨雨水滲透(tou)(tou)，加速了管(guan)(guan)道(dao)的(de)腐(fu)蝕(shi)，增加了管(guan)(guan)道(dao)的(de)熱(re)(re)損失  例如，開發區初期建設的(de)直(zhi)埋蒸(zheng)汽管(guan)(guan)道(dao)*是(shi)(shi)這種工(gong)(gong)程實踐(jian)。管(guan)(guan)道(dao)熱(re)(re)損失很(hen)大，挖出的(de)供熱(re)(re)管(guan)(guan)道(dao)腐(fu)蝕(shi)嚴重。原有的(de)玻(bo)(bo)璃(li)鋼保護(hu)層機械(xie)(xie)強度不(bu)(bu)高，尤其是(shi)(shi)不(bu)(bu)僅用于夏季(ji)供暖的(de)直(zhi)埋管(guan)(guan)道(dao)腐(fu)蝕(shi)更為嚴重。  因此(ci)，保持直(zhi)埋供熱(re)(re)管(guan)(guan)道(dao)的(de)溫度和(he)*外(wai)(wai)界溫度不(bu)(bu)太高是(shi)(shi)非常必要的(de)。隔(ge)熱(re)(re)層使(shi)(shi)隔(ge)熱(re)(re)層不(bu)(bu)透(tou)(tou)水也(ye)是(shi)(shi)施工(gong)(gong)中的(de)一個重要環節。