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Pipe Explosion During Pigging Procedure

机译：清管过程中的管道爆炸

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摘要

On a hot summer day in Texas, when the temperature was 91°F, contrac-I tors were performing cleaning services in preparation for internally coating a new section of 18-inch carbon steel pipeline. The pipeline was being constructed to carry brine to consumers from its source at a salt dome and had not yet been buried. That morning, three batches of methanol were pigged through the approximately 8,600 feet of pipe under service. As a final solvent rinse prior to application of the coating, 750 gallons of methyl ethyl ketone (MEK) were loaded into the pipe in front of a solid urethane pig.rnAfter removing the collected liquid MEK from between the pig and the receiver gate valve, operators opened the valve and bled some air from the receiver to allow the pig to enter. At that time, operators at the pig receiver reported hearing aloud "bang" and observing a shift in the position of the pipe, prompting them to take cover.
机译：在得克萨斯州一个炎热的夏日，温度为91°F时，承包商正在执行清洁服务，以准备内部涂覆18英寸碳钢管道的新部分。该管道正在建设中，目的是从盐场将盐水从其源头运送到消费者，并且尚未被掩埋。当天早晨，三批甲醇通过了约8600英尺的在用管道进行清管。作为在涂覆涂料之前进行的最终溶剂冲洗，将750加仑的甲乙酮（MEK）装入固态聚氨酯清管器前面的管道中。rn从清管器和接收器闸阀之间取出收集的液态MEK后，操作员打开阀门并从接收器中抽出一些空气，以允许猪进入。那时，养猪场的操作员报告说，他们听到“砰”的一声，观察到管道位置的变化，促使他们掩盖。

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  • 来源
    《Pipeline & gas journal》 |2008年第10期|82848586|共4页
  • 作者

    Lawrence M. Matta; Gregory J. Haussmann;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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