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2009-2010年,美国发生了两起用天然气吹扫管道后,将天然气排放到工作区域内引发的爆炸事故。美国化学品委员会的调查表明,使用天然气吹扫管道是非常危险的,应采用更安全的做法替代。2009年6月9日,美国北卡罗来纳州加纳附近的康尼格拉公司斯利姆吉姆工厂,新管道在室内吹扫时,天然气积聚到了危险的程度,由此引发了一场灾难性的爆炸。2010年2月7日,位于美国康涅狄格州米德尔敦市的克伦能源电厂正在施工之中,天然气被用来吹扫管道,在吹扫过程中发生了毁灭
In 2009-2010, there were two explosions in the United States that caused natural gas to be released into the work area after purging the pipeline with natural gas. A survey by the American Chemistry Commission showed that using natural gas to purge the pipeline is very dangerous and should be replaced by safer practices. On June 9, 2009, when the new pipeline was purged indoors, natural gas was accumulated to dangerous levels as a result of a catastrophic explosion at the Slim Gem factory in Connex, near Ghana, North Carolina, USA. On February 7, 2010, a Karen energy plant under construction in Middletown, Connecticut, USA, was under construction and natural gas was used to purge the pipeline, destroying it during the purge