5萬立方米原油儲罐焊接方案

目錄
1. 編制說明.................................................................2
2. 編制依據(jù).................................................................2
3. 儲罐設(shè)計(jì)技術(shù)條件.........................................................2
4. 油罐主體材料概況.........................................................3
5. 焊前準(zhǔn)備.................................................................4
5.1 焊接方法及設(shè)備的選擇....................................................4
5.2 焊接接頭坡口型式及其加工................................................5
5.3 焊接接頭現(xiàn)場組對技術(shù)要求................................................5
5.4 焊接工藝評定............................................................6
5.5 焊工考核................................................................6
5.6 焊接材料................................................................6
5.7 技術(shù)交底................................................................8
6.焊接施工..................................................................8
6.1 一般要求................................................................8
6.2 罐底的焊接..............................................................9
6.3 罐壁的焊接.............................................................15
6.4 罐壁與罐底大角焊縫的焊接...............................................17
6.5 浮頂?shù)暮附?............................................................17
6.6 其它附件的焊接.........................................................19
7. 焊后檢查及驗(yàn)收......................................................... 21
7.1 焊縫的外觀檢查.........................................................21
7.2焊縫無損檢測及嚴(yán)密性試驗(yàn)...............................................22
8．焊接修補(bǔ)................................................................25
9．質(zhì)量保證措施............................................................25
10.HSE措施................................................................26
11.附件(焊縫編號示意圖及焊接工藝卡、焊材控制程序及自檢表格)................27