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儲罐安裝、焊接施工方案-展示頁

2024-11-22 18:36本頁面
  

【正文】 ....................... 5 4. 基礎(chǔ)驗(yàn)收 Re—check the foundation ....................................................... 6 5. 預(yù) 制 Prefabrication of storage tank ........................................................ 6 6. 安 裝 Installation ................................................................................. 9 7. 焊 接 Welding.................................................................................. 16 8. 不銹鋼儲罐的酸洗 Acid cleaning of joints of stainless tanks ................. 26 Project quality assurance measures and system..... 26 10. 安全措施 Safety measures ................................................................ 29 11. 資源配置 resource deploy................................................................. 33 上海 SECCO90 萬噸 /年乙烯工程 26 萬噸 /年丙烯腈 (AN)裝置 儲罐安裝 \焊接施工方案 中國石化集團(tuán)第五建設(shè)公司 Page 2 of 34 上海工程項(xiàng)目部 1. 概 述 General 建設(shè)單位 : 上海賽科石油化工有限責(zé)任公司 Project Client: Shanghai SECCO Petrochemical Company Ltd. EPC 承包商:中國石化蘭州設(shè)計院 EPC Contractor: Lanzhou Design Institute of SINOPEC 監(jiān)理 :上海金申工程建設(shè)監(jiān)理公司 Supervision Contractor: Shanghai Jinshen Engineering Construction Supervision Company 本裝置的儲罐均為圓筒形立式儲罐,現(xiàn)場制作的各種儲罐 9 臺 ,如下 The storage tanks are cylindrical vertical tanks, need to fabricate 9 sets of this plant are 名稱 Name 位號 Item 全容積 Cubage( m3) 規(guī)格 Specification( mm) 材質(zhì)Material 總重 /臺 Gross Weight/ Set( t) 數(shù)量Number 丙烯腈成品中間罐 An product rundown tanks 4001 A/B/C 1000 Φ 11000x10670 3 粗丙烯腈罐 Crude AN tank D4002 3580 Φ 16750x16250 304 L 1 不合格丙烯腈罐Offspec AN tank D4003 3580 Φ 16750x16250 304 L 1 廢水罐 Waste water tank D6201 1000 Φ 11800x10000 304 L 1 廢水廢有機(jī)物罐 4SE bottoms tank D6202 2350 Φ 15000x13300 304 L 1 硫銨凝液罐 AMS condensate tank D7202 2209 Φ 15000x12500 316L 1 硫銨溶液罐 AMS solution tank D7201 7000 Φ 26400x13000 316L 1 采用液壓頂升倒裝法安裝。 All of the storage tanks adopt hydraulic pressure lift inverted assembly method. 與不銹鋼板接觸的碳鋼工具、夾具要在接觸處放置一塊同材質(zhì)的不銹鋼板 。其力學(xué)性能特點(diǎn)是塑性、韌性好,但強(qiáng)度、硬度低;其工藝性能焊接性能、冷壓力加工性能好,但切削加工性差,屬于難加工材料。焊接時應(yīng)采用較小的焊接電流,大的焊接速度,短弧焊,多層焊時,待先焊一層完全冷卻后再焊下一層。 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 萬噸 /年乙烯工程 26 萬噸 /年丙烯腈 (AN)裝置 儲罐安裝 \焊接施工方案 中國石化集團(tuán)第五建設(shè)公司 Page 4 of 34 上海工程項(xiàng)目部 原材料 檢驗(yàn) 基礎(chǔ)驗(yàn)收 預(yù) 制 底板防腐 底板組焊 真空試驗(yàn) 邊柱組裝 拱頂支架安裝 第二、三帶板組焊 罐體下段各帶壁板提升、組焊 大角縫、邊緣板剩余焊縫焊接 收縮縫焊接 附件 安裝 充水試驗(yàn) 充水進(jìn)行基礎(chǔ)沉降試驗(yàn)、罐壁和罐頂?shù)膰?yán)密性穩(wěn)定性試驗(yàn) 防腐保溫 竣工驗(yàn)收 包邊角鋼組焊 第一帶壁板組焊 肋板組焊 液壓提升架 安裝 頂板組焊 檢查 B 檢查 C 檢查 B 檢查 B 檢查 B 檢查 B 檢查 A 上海 SECCO90 萬噸 /年乙烯工程 26 萬噸 /年丙烯腈 (AN)裝置 儲罐安裝 \焊接施工方案 中國石化集團(tuán)第五建設(shè)公司 Page 5 of 34 上海工程項(xiàng)目部 3. 材料驗(yàn)收 Acceptance of the material 貯罐所用的材料和附件應(yīng)符合設(shè)計文件規(guī)定,且應(yīng)具有質(zhì)量證明書或合格證; The materials and additions of the storage tanks shall accord with the specification of the design documents and have quality certificates or acceptable certificates. 鋼板應(yīng)逐張進(jìn)行外觀檢查,無夾渣、重皮、折疊、氣孔等缺陷;鋼材按規(guī)定進(jìn)行檢驗(yàn)。 The sum of nick depth and steel plate actual negative deviation shall be less than the following allowance deviation of steel plate thickness. 鋼板厚度 Thickness of steel plate (mm) 允許偏差 Allowance (mm) ~ 6 ~ 7 Examination of raw material Recheck foundation Accept of prefabrication Insulation channel plate Lay weld of bottom plate Vacuum leakage test of bottom Assembly and weld of the top shell Assembly of support of vault Assembly and weld of the second and third top shell Assembly of side pillar Assembly and weld of the following wainscot Weld of the low most wainscot and rim plate and remain welding line of rim plate Weld of the channel plates and rim plates Assembly of appurtenances Water test Settlement observation and positive and negative pressure test Insulation Turn over Assembly and weld of rim angle steel ring Assembly and weld of arch rib Accessory of vault Assembly of Hydraulic lift machine Checking B Checking A Checking B Checking B Checking B Checking B Checking B 上海 SECCO90 萬噸 /年乙烯工程 26 萬噸 /年丙烯腈 (AN)裝置 儲罐安裝 \焊接施工方案 中國石化集團(tuán)第五建設(shè)公司 Page 6 of 34 上海工程項(xiàng)目部 8 ~ 25 經(jīng)檢查合格的材料,應(yīng)按材質(zhì)、規(guī)格、型號分類存放。鋼材做好標(biāo)記移植。 Handle turnover procedure before install the storage tank and foundation construction pany shall provide foundation certificates and procedure certificates。 20mm; The allowance deviation of foundation center elevation is177。 本現(xiàn)場的儲罐基礎(chǔ)無環(huán)梁,支承罐壁的基礎(chǔ)表面其高差每 3m 弧長內(nèi)任意兩點(diǎn)的高差不得大于 6mm,整個圓周長度內(nèi)任意兩點(diǎn)的高差不得大于 12mm; For the foundation surface of bearing tank wall, height difference between arbitrary two points in every 10m is less than 7mm。 瀝青砂層表面應(yīng)平整密實(shí),無突出隆起,凹陷及貫穿裂紋。在同一圓周的測點(diǎn)。其它儲罐的直徑均小于 25m,從基礎(chǔ)中心向基礎(chǔ)周邊拉線測量,基礎(chǔ)表面每 100m2范圍內(nèi)測點(diǎn)不得小于 10 點(diǎn),基礎(chǔ)表面凹凸度允許偏差 25mm。 Chord length of arc templet is not less than 2m, if curvature radius more than 。 測量焊縫角度變形的弧形樣板弦長不得小于 1m; 上海 SECCO90 萬噸 /年乙烯工程 26 萬噸 /年丙烯腈 (AN)裝置 儲罐安裝 \焊接施工方案 中國石化集團(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。 為避免變形可用扁鐵或木板加固。 There should be 1 entries arc templet for every radius. There should be all 3 entries linear templets.
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