中國石油唐山液化天然氣項目質(zhì)量關(guān)鍵控制點及控制措施

1、中國石油唐山液化天然氣項目中國石油唐山液化天然氣項目關(guān)鍵質(zhì)量控制點及措施關(guān)鍵質(zhì)量控制點及措施編制人：編制人：審核人：審核人：審批人：審批人：中國石油唐山液化天然氣項目中國石油唐山液化天然氣項目PMCPMC項目部項目部北京興油工程項目管理有限公司北京興油工程項目管理有限公司二〇一一年九月中國石油唐山LNG項目PMC項目部北京興油工程項目管理有限公司4.15焊接作業(yè)環(huán)境濕度不符合規(guī)范要求...........................

2、................................................664.16底片黑度大，鉛字上焊縫，缺少準(zhǔn)確識別評定條件。...........................................674.17管線對口錯邊量超標(biāo).....................................................................................

3、..............674.18已預(yù)制的管段未及時封堵，有雜物進入...................................................................684.19進場的工藝管件質(zhì)量不符合要求...............................................................................684.20工藝管線水平度不符合要

4、求.......................................................................................694.21焊接過程焊條保溫桶敞蓋...........................................................................................694.22管道對口間隙過大..........

5、.............................................................................................704.23閥體銹蝕嚴重...............................................................................................................704.

6、24管道焊縫表面低于母材...............................................................................................714.25焊接過程中未對管件采取保護措施，以致飛濺物殘留在管件表面.......................714.26管道對口間隙過小..........................................

7、.............................................................724.27不銹鋼管線氬弧焊接時未進行充氬氣保護...............................................................724.28不銹鋼管線焊接完后未進行酸洗....................................................

8、...........................734.29低溫管托隨意堆放缺少保護措施...............................................................................734.30管線保冷伸縮縫保護不到位............................................................................

9、...........744.31保冷管托安裝后保護不到位.......................................................................................744.32不銹鋼與碳鋼混放..........................................................................................

10、.............754.33玻璃鋼管表面劃傷.......................................................................................................754.34管溝底部未鋪設(shè)墊層...........................................................................

11、........................764.35接頭未打磨處理，直接用玻璃布包纏連接...............................................................764.36保溫絕熱材料現(xiàn)場隨意堆放不符合要求...................................................................764.37鍍鋁外保護層搭接長度不足，

12、保冷材料外露...........................................................774.38管線保冷外保護層不銹鋼帶間距過大.......................................................................774.39水平管道金屬保護層的縱向接縫設(shè)置不符合要求...................................

13、................784.40管線保冷外保護層鋼帶過長捆綁松懈.......................................................................784.41管線保冷外保護層接縫處沒有涂抹密封劑...............................................................794.42管線保冷主防潮層涂抹不均勻.....