【正文】
轉(zhuǎn)定位螺母,調(diào)整好壓輪行程,將對應(yīng)管徑塞尺塞入標(biāo)尺確定滾槽深度; 壓槽時(shí)先把液壓泵上的卸壓手柄順時(shí)針擰緊,再操作液壓手柄使上滾輪壓住鋼管。 Page 14 of 39 Technical Proposal 技術(shù)標(biāo) 打開滾槽機(jī)開關(guān),同時(shí)操動手壓泵手柄均勻緩慢下壓。 8每壓一次手柄行程不超過 ,鋼管轉(zhuǎn)動一周。一直壓到壓槽機(jī)上限位 螺母到位為止,再轉(zhuǎn)動兩周以上,保證壁厚均勻,關(guān)閉開關(guān)、松開卸壓螺母,上滾輪自動升起。 檢查管子的溝槽尺寸。如不符合規(guī)定,再微調(diào),進(jìn)行第二次壓槽時(shí),再一次檢查溝槽尺寸,以達(dá)到規(guī)定的標(biāo)準(zhǔn)尺寸 檢查管子斷面與管子軸線是否垂直,最大誤差不超過 2mm,去掉斷口殘留物,磨平管口,確保密封面無損傷。 4) when make groove, let the pipe horizontal, and 90176。 with the motorized wheel, smoothly and make the depth of groove meet the requirement below: 用壓槽機(jī)壓槽時(shí),管道應(yīng)保持水平,且與壓槽機(jī)驅(qū)動輪擋板呈 90176。,壓槽時(shí)應(yīng)保持持續(xù)漸進(jìn),槽深應(yīng)符合下表要求: The standard depth and tolerance: 鍍鋅鋼管溝槽標(biāo)準(zhǔn)深度及公差要求: NPS 公稱直徑( mm) Groove to pipe end 溝槽至管端尺寸 (mm) depth 溝槽深度( mm) width 溝槽寬度( mm) DN100 DN125 DN150 DN200 5) Clamp joint 溝槽式卡箍管件安裝 Finished groove fitting are pleased to be used. 鍍鋅鋼管溝槽連接 優(yōu)先采用成品溝槽式 管件; Machine made pipe end, and tolerance allowed: when pipe size bigger than 100mm, tolerance no bigger than 1mm, when pipe size bigger than 125mm, Page 15 of 39 Technical Proposal 技術(shù)標(biāo) tolerance no bigger than . 采用機(jī)械截管,截面應(yīng)垂直軸心,允許偏差:管徑不大于 100mm時(shí),偏差不大于 1mm;管徑大于 125mm時(shí),偏差不大于 。 Before installation, check the size and marks are match, check the pipe end, not crack, axial wrinkle and burr are allowed, also mud and contaminations are not allowed. 溝槽式卡箍管件安裝前,檢查卡箍的規(guī)格和膠圈的規(guī)格標(biāo)識是否一致,檢查被連接的管道端部,不允許有裂紋、軸向皺紋和毛刺,安裝膠圈前,還應(yīng)除去管端密封處的泥沙和污物。 The work step: 鍍鋅鋼管溝槽連接步驟如下: item 序號 steps 安裝步驟 picture 安裝圖片 description 安裝說明 1 Place plastic gasket 上橡膠墊圈 Put plastic gasket in place and be careful of installation 將密封橡膠圈套入一根鋼管的密封部位,注意不得損壞密封橡膠圈; 2 Pipe connection 管道連接 Connect and leave some gap, adjust to let the distance equal 將另一根加工好的管道與該管對齊,兩根管道之間留有一定間隙 , 移動膠圈,調(diào)整膠圈位置,使膠圈與兩側(cè)鋼管的溝槽距離相等; Page 16 of 39 Technical Proposal 技術(shù)標(biāo) item 序號 steps 安裝步驟 picture 安裝圖片 description 安裝說明 3 lubricate 涂潤滑劑 Wipe lubricate on the joint 在管道端部和橡膠圈上涂上潤滑劑; 4 Install clamp 安裝卡箍 Buckle the clamp and clip clamp into groove 將卡箍上、下緊扣在密封橡膠圈上 ,并確??ü客惯吙ㄟM(jìn)溝槽內(nèi); 5 Tight the screw 擰緊螺母 Slowly tight the screw 用手壓緊上下卡箍的耳部,使上下卡箍靠緊并穿入螺栓,螺栓的根部橢圓頸進(jìn)入卡箍的橢圓孔 ,用扳手均勻輪換同步進(jìn)行擰緊螺母,確認(rèn)卡箍凸邊全圓周卡進(jìn)溝槽內(nèi); 6 check 檢查 Check if it tight enough, until no gap 檢查上下卡箍的合面是否靠緊 ,不存在間隙為止。 6) mechanical tee installation 機(jī)械三通安裝 Drill on the pipe with drilling machine, gas torch are not allowed to open a hole, anticorrosion treatment to be done for the damaged surface 鍍鋅鋼 管安裝機(jī)械三通,需要在管道上開孔,開孔必須使用專用的開孔機(jī),不允許使 Page 17 of 39 Technical Proposal 技術(shù)標(biāo) 用氣割開孔,開孔后必須做好開孔斷面的防銹處理。 Drill and installation sketch 管道開孔及安裝機(jī)械三通節(jié)點(diǎn)詳圖如下: Location and drilling 圖 1:管道定位開孔 Mechanical tee installation 圖 2:機(jī)械三通安裝 Threaded connection with branch 圖 3:支管絲接接出方式 Clamp connection with brance 圖 4:支管溝槽接出方式 Work step for drilling and installaiton 管道開孔及安裝機(jī)械三通步驟如下: Page 18 of 39 Technical Proposal 技術(shù)標(biāo) item 序號 steps 安裝步驟 description 安裝說明 1 Draw line 畫線 Survey and locate, mark on the proper position 根據(jù)施工現(xiàn)場測量、定位,在需要開孔的部位用畫線器準(zhǔn)確的作出標(biāo)志; 2 Fix pipe and machine 固定管道與開孔機(jī) Fix the drilling machine in the position with chain, adjustment made to let the pipe horizontal 用鏈條將開孔機(jī)固定于管道預(yù)定開孔位置處,用水平尺調(diào)整管道至水平; 3 drilling 開孔 Start drilling, operate control wheel to drill a hole on the pipe 啟動電機(jī)轉(zhuǎn)動鉆頭,操作設(shè)置在支柱頂部的手輪,緩慢地下壓轉(zhuǎn)動手輪,完成鉆頭在鋼管上的開孔作業(yè); 4 clean 清理 Clean the fragment, burnish the burr, paint with anticorrosion coat 清理鉆落的碎片和開孔部位的殘?jiān)蒙拜啓C(jī)打磨孔口的毛刺,再刷兩道防銹漆; 5 Install mechanical tee 安裝機(jī)械三通 Put tee on the hole, insert gasket and tight screw 將機(jī)械三通置于鋼管孔洞上,機(jī)械三通、橡膠密封圈與孔洞間隙應(yīng)保持均勻,擰緊螺栓。 7) Mechanical cross installation 機(jī)械四通安裝 Page 19 of 39 Technical Proposal 技術(shù)標(biāo) Installation sketch 機(jī)械四通安裝示意圖 Symbols: 1 galvanize pipe 3 drill for mechanical cross 符 號說明: 1鍍鋅鋼管; 2機(jī)械四通開孔 In order to enhance the drill precision to ensure the installation quality, make the tw