首页> 外文会议>2002 ASME Pressure Vessels and Piping Conference, Aug 5-9, 2002, Vancouver, British Columbia, Canada >ON THE TRANSITION FROM NON-BLEVE TO BLEVE FAILURE FOR A 1.8 M~3 PROPANE TANK
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ON THE TRANSITION FROM NON-BLEVE TO BLEVE FAILURE FOR A 1.8 M~3 PROPANE TANK

机译:1.8 M〜3丙烷罐从无故障到无故障过渡的研究

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A series of fire tests were conducted on nine, 1.8 m~3 (500 USgal) propane tanks to study the significance of PRV behaviour on tank survivability to fire impingement. In these tests three tanks ruptured (i.e. finite failure) and six BLEVEd (total loss of containment). The difference between the BLEVE and non-BLEVE failures was due to a difference in the fire condition. It is believed that these tests show some insight into the BLEVE process. In all tests the fire consisted of an array of nominal 590 kW (2 MBTU/hr) liquid propane burners. A pool fire was not used because of the uncontrolled nature of open pool fires. It was believed that very repeatable fire conditions could be achieved by using a series of burners. In the tests where the outcome was a non-BLEVE there were two burners mounted 30 cm above the tank on the tank vapour space. These burners were used to weaken the steel and to initiate a failure. To heat the liquid, there were between four and twelve burners applied below the liquid level. When one burner was added on the vapour space, all of the remaining tanks BLEVEd. This was true over a range of fill levels (at failure) of between 10-50% by volume. It is believed this added burner was just enough to weaken the tank so that any initial rupture would grow towards a total loss of containment and BLEVE. This paper presents the details of this test series and shows how severely heated length and liquid energy affected the outcome.
机译:在9个1.8 m〜3(500 USgal)丙烷罐上进行了一系列的燃烧试验,以研究PRV行为对罐的耐冲击性的影响。在这些测试中,三个储罐破裂(即有限失效),六个被破坏(全部密闭性损失)。 BLEVE和非BLEVE故障之间的差异是由于着火条件的差异所致。相信这些测试显示了对BLEVE过程的一些了解。在所有测试中,火灾均由一系列标称590 kW(2 MBTU / hr)的液态丙烷燃烧器组成。由于开放式池火的不受控制的性质,未使用池火。人们认为,使用一系列燃烧器可以达到非常可重复的着火条件。在测试结果为非BLEVE的测试中,有两个燃烧器安装在罐上方30 cm的罐蒸气空间上。这些燃烧器用于削弱钢的强度并引发故障。为了加热液体,在液位以下施加了四个到十二个燃烧器。当在蒸气空间上增加一个燃烧器时,所有剩余的储罐都变成BLEVEd。在按体积计10%至5​​0%的填充水平范围内(失效时),情况确实如此。可以相信,增加的燃烧器刚好足以削弱储罐,因此任何初始破裂都将导致密闭性和BLEVE的完全丧失。本文介绍了该测试系列的详细信息,并显示了加热长度和液体能量如何严重影响结果。

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