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儲(chǔ)罐安裝、焊接施工方案-wenkub.com

2024-11-06 18:36 本頁(yè)面
   

【正文】 Must according to this construction technical project and welding process sheets. 參加施工的焊工必須有相應(yīng)項(xiàng)目的合格證書,不得有超出合格項(xiàng)目的焊接。 4mm; 包邊角鋼應(yīng)緊貼壁板頂部,其間隙 不應(yīng)大于 2mm; Allowance deviation of the section that angle steel ring taller than shell is 177。 After welding the shell before assembly next shell, should assembly stiffening head. 頂圈壁板安裝合格后,安裝包邊角鋼包邊角鋼在組裝前應(yīng)檢查弧度和翹曲度; After install the top shell, install angle steel ring , check arc and camber of the angle steel ring before assemble it。補(bǔ)強(qiáng)板厚度與曲率半徑與開口處相同,并開信號(hào)孔。 拱頂安裝后提升前將透光孔、量油孔、泡沫發(fā)生器、盤梯支架及防護(hù)欄桿等安裝完畢; Install domed roof center cap plate ,gage hatch, foam generator and guard rail, etc.。 在包邊角鋼和臨時(shí)支架上,應(yīng)劃出每塊拱頂板的位置線 。 5mm; Between the domed roof plates are lap joint, it’s 50mm, Allowance is 177。 :當(dāng)上 圈壁板厚度小于 8mm 時(shí),任何一點(diǎn)的錯(cuò)邊量均不得大于 ;當(dāng)上圈壁板厚度大于或等于 8mm 時(shí),任何一點(diǎn)的錯(cuò)邊量均不得大于板厚的 2/10,且不應(yīng)大于 3mm; Lap of circumferential joint: when thickness of upper shell is less than 8mm,lap of every point is not more than 。 13 < D≤ 45 177。Circumferential joint shall weld the external firstly, then weld the internal。 Backout of hydraulic lift machine: backout oil pipe in time after lift all shells. 壁板組裝 Assemble of shell ①在罐外組裝下一圈壁板,留一道活口; Remain a lively hole after install 。 The distance of high should less than 50mm. ③提升高度接近帶板 高度 100mm 時(shí),應(yīng)減緩提升速度,嚴(yán)格控制罐體水平。 Step by step lift top shell until tower above 30~ 50mm of second shell. Coalesce shell, in order to adjust circumferential clearance, put sheet metal. Adjust clearance by hydraulic lift machine. ⑤利用同樣的方法提升以下各帶壁板,在提升最后一帶板時(shí)一定要嚴(yán)格控制提升速度,各液壓千斤頂油壓必須保持一致,當(dāng)提升至高出下一帶板 30mm 左右時(shí),迅速進(jìn)行調(diào)整,利用夾具固定上下壁板,當(dāng)間隙調(diào)整完畢后,及時(shí)點(diǎn)焊固定。 Actuate each hydraulic lift machine by low pressure, let every hanging hook’s force is same. 施工方法 Construction method ①頂升裝置安裝完畢后,應(yīng)逐個(gè)進(jìn)行空載試驗(yàn),檢查油缸往復(fù)動(dòng)作,提升桿步進(jìn)、上、下卡頭是否可靠,提升桿與滑板的運(yùn)動(dòng),以及中央控制臺(tái)和油管是否正常工作。 Adjust idler wheel, cling shell and lock bolt. 安裝液壓千斤頂和配管 Assembly Hydraulic lift machine and tubing ①將千斤頂?shù)跹b在立柱上,按千斤頂配管方向要求與立柱栓接。 Staking out in bottom plate, ensure equal part fix position of pole. 液壓頂升裝置的安裝 Hydraulic lift machine installation 罐底板施工完畢、安裝最上二(三)帶壁板后,進(jìn)行液壓頂升裝置及配套設(shè)施的安裝。K 取 (安全系數(shù)) appurtenance weight approximately 4000Kg, K approximately ( Safety coefficient) 名 稱 Name 位 號(hào) Item 全容積Specification( m3) 規(guī) 格 Type( mm) 提升重量 Lifting weight( t) 頂升機(jī)數(shù)量Number of lift machine( set) 丙烯腈成品中間罐An product rundown tanks 4001 A/B/C 1000 Φ 11000x10670 4 粗丙烯腈罐Crude AN tank 4002 3580 Φ 16750x16250 8 不合格丙烯腈罐Offspec AN tank 4003 3580 Φ 16750x16250 8 廢水罐 Waste water tank 6201 1000 Φ 11800x10000 4 廢水廢有機(jī)物罐 4SE bottoms tank 6202 2350 Φ 15000x13300 6 硫銨凝液罐AMS sulphate 7202 2209 Φ 15000x12500 6 稀硫銨溶液罐AMS solution tank 7201 7000 Φ 26400x13000 12 液壓千斤頂選用 BY160 型,額定起重量為 16 噸,液壓行程為 100mm。 南 S 270186。 Spotwelding the cushion plate on the same side of edge plate. 弓形板邊緣板的對(duì)接接頭采用不等間隙,外側(cè)間隙為 e1=4~5mm,內(nèi)側(cè)間隙為e2=7~8mm; Butt connection of arc rim plate adopt unequal gap, outer gap is e1=4~5mm,inner gap is e2=7~8mm。 5mm。 上海 SECCO90 萬(wàn)噸 /年乙烯工程 26 萬(wàn)噸 /年丙烯腈 (AN)裝置 儲(chǔ)罐安裝 \焊接施工方案 中國(guó)石化集團(tuán)第五建設(shè)公司 Page 10 of 34 上海工程項(xiàng)目部 Before laying carbon tank soleplate, its underside shall paint according to design requirements, and not paint in 40mm from each edge. 在基礎(chǔ)上劃出兩條互相垂直的中心線,并且劃出每塊中幅板的位置,這樣有利于鋪設(shè); 先鋪罐底中心板,在中心板上劃十字線,十字線與罐基礎(chǔ)中心線重合,在十字線中心打上樣沖眼,并應(yīng)做出明顯的十字標(biāo)記; Draw reticle on tank bottom center plate according to typeset chart, the reticle and tank foundation centerline overlaps. Drilling in tank center and marking. 由罐底中心板向兩端逐塊鋪設(shè)中間一行中幅板,然后從中間一行板開始,向兩側(cè)逐行鋪設(shè)中幅板,每行中幅板應(yīng)由中間向兩側(cè)依次鋪設(shè);中幅板搭接長(zhǎng)縫可點(diǎn)焊或用角鋼斜鐵固定, 每塊板不少于 2 處。 operation is steady and reliable。 6. 安 裝 Installation 采用目前國(guó)內(nèi)較先進(jìn)的液壓頂升倒裝法施工工藝,在罐內(nèi)沿圓周設(shè)置提升架,用托架將罐體、罐壁脹圈與液壓頂升機(jī)連接在一起,在罐內(nèi)設(shè)液壓泵站,用膠管通過(guò)液壓元件把各液壓頂升裝置連起來(lái),在高壓油的作用下將罐體升起。 拱頂加強(qiáng)肋,應(yīng)進(jìn)行冷煨加工,成型后用弧形樣板檢查,其間隙不得大于 2mm; Domed roof reinforce rib shall cold roast and check with arc templet after formation, its gap is less than 2mm。壁板卷制后應(yīng)立置在平臺(tái)上檢查,垂直方向用直線樣板檢查間隙不得大于 1mm,水平方向用弧形樣板,其間隙不得大于 4mm; Shell plate shall upright lie on the platform to check with templet. For the vertical to check with straight templet and its gap is less than 1mm. For the level to check with arc templet and its gap is less than 4mm。 1 長(zhǎng) 度 Length 177。 罐壁開孔接管或開孔接管補(bǔ)強(qiáng)板外緣與罐壁縱向焊縫之間的距離不得小于200mm,與環(huán)向焊縫之間的距離不得小于 100mm; The distance between tank wall open pipe and open reinforcement plate outer edge and tank wall longitudinal weld is not less than 100mm。 2 寬度 Diagonal difference AC、 BD、 EF 177。 中幅板寬度不得小于 1000mm,長(zhǎng)度不得小于 2020mm; Channel plate width is not less than 1000mm。底板切割后,背面刷漆按圖紙要求進(jìn)行,不銹鋼板材不刷漆。 There should be 1 entries arc templet for every radius. There should be all 3 entries linear templets. They are flake aluminium. 預(yù)制前對(duì)鋼板的局部平面度應(yīng)進(jìn)行檢查,當(dāng)用直線樣板檢查時(shí),間隙不應(yīng)大于 4mm; Before prefabrication check horizontality, clearance less than 4mm. 號(hào)料前,應(yīng)核對(duì)鋼板的材質(zhì)、規(guī)格,鋼板應(yīng)處于平放位置; Before cropping, check materials, specifications. 預(yù)制鋼板和構(gòu)件要標(biāo)明儲(chǔ)罐位號(hào)、名稱、規(guī)格、材質(zhì)。 測(cè)量焊縫角度變形的弧形樣板弦長(zhǎng)不得小于 1m; 上海 SECCO90 萬(wàn)噸 /年乙烯工程 26 萬(wàn)噸 /年丙烯腈 (AN)裝置 儲(chǔ)罐安裝 \焊接施工方案 中國(guó)石化集團(tuán)第五建設(shè)公司 Page 7 of 34 上海工程項(xiàng)目部 Chord length of arc templet for measure the angle distortion of weld joint is not less than 1m。其它儲(chǔ)罐的直徑均小于 25m,從基礎(chǔ)中心向基礎(chǔ)周邊拉線測(cè)量,基礎(chǔ)表面每 100m2范圍內(nèi)測(cè)點(diǎn)不得小于 10 點(diǎn),基礎(chǔ)表面凹凸度允許偏差 25mm。 瀝青砂層表面應(yīng)平整密實(shí),無(wú)突出隆起,凹陷及貫穿裂紋。 20mm; The allowance deviation of foundation center elevation is177。鋼材做好標(biāo)記移植。 Note: During the project execution, in case of any conflict between Chinese governmental laws and regulations, SECCO’s project specification, standards and codes, the following predominance is followed: SECCO’s project specification, standards and codes, Chinese governmental laws and regulations. Construction process 上海 SECCO90 萬(wàn)噸 /年乙烯工程 26 萬(wàn)噸 /年丙
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