dl受監(jiān)管道焊接作業(yè)指導書

1、Good is good, but better carries it.精益求精，善益求善。dl受監(jiān)管道焊接作業(yè)指導書小口徑受監(jiān)管道焊接作業(yè)指導書工程技術文件報審表B1-07 (A1監(jiān)）工程名稱雙鴨山龍煤天泰煤制芳烴項目-熱電廠編號至： 中國成達工程有限公司（監(jiān)理單位）現報關于 雙鴨山龍煤天泰煤化工有限公司熱電廠165T/H流化床鍋爐受熱面管道焊接作業(yè)指導書 工程技術文件，請予以審核。序號名稱及類別編制人1鍋爐受熱面焊接作業(yè)指導書234審查意見：總承包單位（章）：賽鼎工程有限公司 專業(yè)工程師/項目經理： 年 月 日監(jiān)理工程師意見： 監(jiān)理工程師（簽字）： 年 月 日 總監(jiān)理工程師審批意見： 監(jiān)理

2、單位（章）：中國成達工程有限公司 總監(jiān)理工程師（簽字）： 年 月 日雙鴨山龍煤天泰煤化工有限責任公司熱電廠鍋爐安裝工程 鍋爐受熱面管道焊接作業(yè)指導書審批：審核:編制:江蘇華能建設工程集團有限公司雙鴨山龍煤天泰項目部2013年5月6日目 錄1適用范圍2編制依據3工程概況及主要焊接工程量4作業(yè)人員資格要求5主要工具、機具要求6施工準備7焊接施工程序8焊縫返修9質量要求10安全和文明施工措施11技術記錄1適用范圍本作業(yè)指導書適用于雙鴨山龍煤天泰煤化工有限公司熱電廠鍋爐受熱面管道焊接施工。2.編制依據21焊工技術考核規(guī)程 DL/T679-201222火力發(fā)電廠焊接技術規(guī)程 DL/T869-201223

3、焊接工藝評定規(guī)程 DL/T868-200424江蘇華能工程建設集團有限公司焊接工藝評定3工程概況及主要焊接工程量31 工程概況 本鍋爐為次高溫次高壓，單鍋筒橫置式，單爐膛，自然循環(huán)，全懸吊結構，鍋爐的給水經過水平布置的兩組光管式省煤器加熱后經導水管進入鍋筒。鍋筒內的鍋水由集中下降管、分配管進入水冷壁下集箱、水冷壁管、上集箱，然后由引出管進入鍋筒。鍋筒內設有汽水分離裝置。 飽和蒸汽從鍋筒頂部的蒸汽連接管引至尾部低過進口集箱，經低溫過熱器、一級噴水減溫器、高溫過熱器、吊掛管、集汽集箱，最后將合格的過熱蒸汽引出。32 主要焊接工程量序號項目名稱材質規(guī)格焊口數量備注1省煤器20G32×355

4、22低溫過熱器20G38×3.54863高溫過熱器12Cr1MoVG42×41744前水冷壁20G51×54255后水冷壁20G51×54256左水冷壁20G51×51927右水冷壁20G51×51928水冷屏20G51×53429集中下降管377×1420G1010集中下降管219×820G64作業(yè)人員資格要求41焊工應按國家勞動人事部頒發(fā)的鍋爐壓力容器焊工考試規(guī)則或國家經貿委頒發(fā)的焊工技術考核規(guī)程，經考試合格取得相應項目的焊工合格證，并在有效期范圍內。42施工人員在施工前必須進行安全交底。43焊工應有

5、良好的工藝作風，嚴格按照給定的焊接工藝進行施焊，并認真實行質量自檢，及時填寫自檢單交焊接質檢員復驗。44焊工在施焊前須經技術人員交底，熟悉作業(yè)指導書及圖紙對焊縫的質量要求。焊接前必須進行焊前模擬練習以熟悉焊接材料性能和操作技能，并經外觀及斷面檢查合格后，方可正式施焊。45技術人員應負責焊接全過程的技術交底、技術指導，同時協(xié)助班組長和質檢員對焊接全過程進行跟蹤監(jiān)督、檢驗和驗收評定工作。46焊接外觀質量檢驗人員應持有效的焊接質檢員證書。負責焊接工作的檢查、監(jiān)督和驗收評定工作。5主要工具、機具要求51焊機必須運行完好、且性能可靠。52焊工所用的焊條保溫筒、砂輪機、鑿子、小錘、鋼絲刷、工具袋等配備齊全

6、。53焊條烘箱必須運行完好、且性能可靠。54施工主要機具、工具、材料名 稱單位數量逆變焊機臺16焊條烘箱臺1氬弧焊槍把10電焊鉗把10氬氣流量計只12電焊面罩只12焊條保溫筒只16鑿子把1水平管米30角向磨光機只16焊接電纜米500氬氣瓶15高壓焊工名66施工準備61材料要求611焊材必須具有質量證明書或材質合格證。當對焊材質量有疑義時應進行抽樣復查，并出具復查合格的報告后方可使用。612施工現場應配有符合要求的二級焊材發(fā)放庫，配置焊條烘烤箱、恒溫箱。并由專人負責，嚴格執(zhí)行有關規(guī)定，做好原始資料與日常記錄的管理工作。613焊材的保管、烘燥、發(fā)放、回收應嚴格按公司“焊接材料管理辦法”的有關規(guī)定執(zhí)

7、行。614焊條的烘燥工藝應按生產廠家說明書提供的參數進行，否則不允許發(fā)放使用。615焊絲使用前應用砂紙徹底清除表面鐵銹、油、污等雜物。616鎢極應用鈰鎢棒，鎢極一端應打磨成園錐型。617氬弧焊所用的氬氣純度不低于99.95，且含水量不大于50ml/m3。焊接前應試驗氬氣純度和流量，如有問題要及時上報處理。62環(huán)境條件621環(huán)境條件應符合下列要求:a風速:手工電弧焊小于8m/s（風力5級），氬弧焊小于2m/s（風力2級）。b相對濕度小于90，環(huán)境溫度：碳素鋼應大于20、低合金鋼及普通低合金鋼應大于10、中、高合金鋼應大于0。c非下雨、下雪天氣。622當環(huán)境條件不符合上述要求時，必須采取擋風、防雨

8、等有效防護措施。623壁厚6mm的低合金鋼管子及壁厚15mm碳素鋼管在負溫下焊接時亦應適當預熱。63焊接方法鍋爐受熱面受監(jiān)管道，管徑DN100的焊接采用GTAW/SMAW(氬弧焊打底，手工焊蓋面) 管徑DN100的焊接采用GTAW(雙氬)的焊接方法。7焊接施工程序:見圖對 口 *預 熱 點 焊 *預 熱 返修 焊 接 自 檢 *后 熱 *熱 處 理 外觀檢查 無損檢測 不合格驗收技術記錄注：*當有要求時 *當必要時71對口要求711坡口形式應按設計圖紙的要求或符合規(guī)程規(guī)定的要求。712 組對時質量要求內壁齊平，其錯口量不超過管壁厚度的10，且不大于1mm。713對接管口端面應與管子中心線垂直，

9、其偏斜度f不得超過0.5mm。714組對前應打磨坡口及兩側,徹底清除坡口內外各1015mm范圍內油污、鐵銹等，直至露出金屬光澤，并對坡口表面進行檢查，不得有裂紋、夾層等缺陷715焊口的局部間隙過大時,應設法修整到規(guī)定尺寸,嚴禁在間隙內加填塞物。716焊接前焊工應對焊口的對口質量進行檢查，符合要求后方可進行焊接，否則有權拒絕焊接。72焊接材料選用721焊接材料的選用應對照安裝專業(yè)提供管材的光譜分析報告，按與母材化學成份相同或相近的原則進行。722異種鋼焊口的焊接材料應按焊接工藝評定的要求或規(guī)程規(guī)定的焊接材料進行選用。723焊接時選用的焊接材料：母材材質焊絲焊條20GTiG-J50 2.5J506

10、 3.212Cr1MoVGTIG-R31 2.5熱317 3.273點固焊731排管點固焊時應先點間隙小的焊口，后點間隙大的焊口。732嚴禁在被焊工件表面引弧、試驗電流或隨意焊接臨時支撐物。733點焊工藝與正式焊接工藝相同，并由同一焊工施焊。74焊接要點741除焊接工藝有特殊要求，每個焊口必須一次連續(xù)焊接完成。742當因故中斷焊接時應立即對焊口采取保溫、緩冷等措施，重新焊接時應仔細檢查焊縫有無缺陷并按原焊接工藝要求進行743焊接過程中應控制焊接線能量， 防止線能量過大。在整個焊口焊接中,并且盡量采用相同的焊接規(guī)范，保持同步、同時焊接、同時停止。744焊接完成后，應及時清理焊縫表面，進行焊縫外觀

11、檢查，自檢合格后及時填寫焊口自檢單。745焊條筒內不可存放不同牌號的焊條，焊條在保溫筒存放的時間不得超過4小時。746禁止在非焊接部位引弧及電弧擦傷管材表面。747打底焊要控制好電弧，運弧及送絲要均勻，氬弧焊打底焊應確保根部熔透和坡口邊緣熔合良好，打底層厚度不小于3mm。748打底焊結束應及時進行加厚層焊接，第一層電焊應選用2.5mm焊條小電流施焊，以防燒穿。運條到坡口邊緣應充分熔合，防止出現死角，熔渣應清理干凈。749應確保起弧與收弧的質量，收弧應將弧坑填滿。層間焊接接頭應錯開，層間清渣要徹底，發(fā)現缺陷及時處理。7412管道氬弧焊接時嚴禁兩名焊工共用一把氬弧焊搶。8焊縫返修81焊接接頭內部有

12、超標缺陷時，可采用挖補方式進行返修，但焊縫同一部位返修次數不得超過三次，合金鋼焊口不宜超過兩次。82焊縫返修應由相應合格項目的持證合格焊工擔任。83返修前應分析缺陷性質、缺陷的長度和寬度，確認缺陷的部位。84返修前應徹底清除缺陷，坡口應盡量規(guī)則，避免坡口底部有尖角、輪廓突變及毛刺等。85返修的焊接工藝應與正式焊接工藝相同，返修時預熱應取預熱溫度的上限，加熱范圍也應適當擴大。86需進行熱處理的焊接接頭，返修后應重做熱處理，熱處理結束后，焊補區(qū)表面須經修整打磨，使其外形與原焊縫基本一致。87返修完畢，按不低于原焊縫質量標準對補焊區(qū)進行檢驗，發(fā)現有不允許缺陷時，應重新挖補返修。88凡是不能用局部補焊

13、法修復的缺陷，可割除該焊口，重新加工坡口對口焊接。9質量要求91焊口的質量要求應嚴格按照三級驗收制度進行檢查驗收。92 焊 縫 余 高平 焊0-2mm其它位置3mm焊縫余高差2mm焊縫寬窄差3mm咬 邊h0.5,10.1L ,且40mm錯 口外壁0.1，且4彎 折D100D1001/1003/20010安全和文明施工措施101電焊機要做好設備的例行保養(yǎng)和安全檢查。焊機外殼接地應良好，移動電源或檢查線路時須切斷電源。焊接電纜有破損的地方應及時用絕緣膠布包好。102焊接工作必須遵守安全、防火等規(guī)程的有關規(guī)定，所有作業(yè)人員應遵守各項安全操作規(guī)程。103進入施工現場必須戴好安全帽，高空作業(yè)系牢安全帶，

14、作業(yè)人員穿專用工作服、戴專用手套。104焊前應檢查并確保工作點下方及四周5M范圍沒有易燃易爆物品，工作完畢后必須切斷電源、氣源，檢查現場，確認無起火危險方可離開。105高空作業(yè)應備好工具包，施工所用工具盡可能置于其中，不準亂擲焊條頭等雜物。106使用角向磨光機、風動返修鉆等工具返修焊口時，應佩戴防護眼鏡，電動工具要性能良好、安全可靠。107夜間作業(yè)須有充足照明，遇到六級或以上大風、大雨、大雪應停止露天高空作業(yè)。108焊接電纜和熱處理電纜線走向應有條理，作業(yè)完成后，及時清理現場焊條頭、保溫材料等雜物，做到“工完、料盡、場地清”。11技術記錄111焊口焊工自檢記錄。112焊口驗評記錄。113焊接記

15、錄及焊口布置圖。114焊口無損檢測報告。111. objective to help companies understand and learn and its activities related to work safety laws and regulations, standards and other requirements, and will communicate this information to practitioners and stakeholders, and enhance their awareness of the law, standard safety

16、 behavior. 2. scope of application on the company's acquisition, identification, updating the law, regulations and other requirements and establishment pedestal debt. 3. responsibilities 3.1 biotech Department 3.1.1 security laws and regulations, standards and other requirements to collect, iden

17、tify and update account and establish and supervise the implementation. 3.1.2 is responsible for the Organization of related departments and units to identify laws, regulations, and other requirements for conformity assessment. 3.1.3 in the two workshops promote laws, regulations and other requireme

18、nts. 3.1.4 is responsible for company's safety rules and regulations. 3.1.5 release 3.2 for legal regulations and safety procedures of each workshop, sections 3.2.1 access to laws, regulations and other requirements, should be passed to the production technology section. 3.2.2 is responsible for

19、 the related laws, regulations, standards and other requirements communicated to employees, and comply with them. 3.2.3 safety regulations of the responsible units. 3.2.4 be responsible for safe operation of the unit door. 4. access to procedures 4.1 4.1.1 technology through standardization of healt

20、h information networks, media, industry associations, government departments and other queries for the nation's security laws and regulations, standards and other requirements. 4.1.2 production technology section to collect the higher authorities of the relevant safety notification, bulletins, e

21、tc. 4.1.3 units, departments, from the professional or the local newspapers, magazines and other copies of the laws, regulations and other requirements, should be submitted to identify and confirm and record production technology section. Registration and identification 4.2.1 4.2 according to the co

22、mpany, activities and services as all of the dangerous and harmful factors, combined with the latest content and versions of the laws and regulations, identify the applicable laws, regulations, standards and other requirements. 4.2.2 according to the characteristics of the industry, and identify the

23、 applicable laws, regulations, standards and other requirements.4.2.3 technology organize relevant departments to obtain and identify laws, regulations, standards and other requirements to organize evaluation confirmed, reported to the leaders for approval, and the preparation of the list of applica

24、ble laws and regulations. Update 4.3 4.3.1 when existing laws, regulations, standards and other requirements is updated, it should identify in a timely manner. 4.3.2 Technology Office once a year the laws, regulations, standards and other requirements of acquisition, identification, updating work. 4

25、.3.3 when danger and harmful factors in production process changes, should be re-recognition of the laws,Constitution provides that no party member can do, leading cadres should take the lead in not doing. In strict accordance with the party Constitution Party member leading cadre must have six basi

26、c conditions and improve their own qualities and abilities, regular checks and pay for their own shortcomings. Especially in the ideal and belief, persist in seeking truth from facts, and promote the scientific development, maintain close ties with, strengthening moral cultivation, and strict adhere

27、nce to party discipline for party members to lead by example. Second, the main change in the new Constitution and the interpretation of the 18th National Congress of the Chinese Communist Party, to end on November 14, 2012 General Assembly vote, the Constitution of the Communist Party of China (Amen

28、dment) Act. 18 Congress of the partyBy the Constitution of the Communist Party of China (Amendment) Act, against 17 in six large through a revision of the party Constitution. In order to comply with the development of the situation and tasks change, every national Congress of our party will be of va

29、rying degrees of revision of the Constitution. A big party was held in 1921, due to time constraints, and developed a platform of one of the large, just a programmatic document. Our first Constitution was established by the party's second National Congress. According to the changes in the situat

30、ion and tasks, after two successive congresses (except for five) different degrees of modification to the Constitution. Because of the special circumstances, the five party Constitution has not been modified, by the Politburo after changes to the Constitution. Current is developed in September 1982

31、the party's 12 big changes to the party Constitution. 30 years, on the premise of maintaining the stability of the basic contents of the party Constitution, 13 and 14 and Congress of the party, 16 and 17 are with varying degrees of modification of the Constitution. Constitution modified of history, is we party 92 great development course of miniature and show, a is show has we party tightly relies on people co