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  • 原油储罐危险性分析
  • 本站编辑:杭州萧山升达防腐设备厂发布日期:2017.12.28

 原油储罐的危险性主要从原油本身具有的危险性和发生火灾事故原因分析。

The danger of crude oil storage tank is mainly from the danger of the crude oil and the cause of the fire accident.
 
一原油危险性分析
An analysis of the risk of crude oil
原油为甲B类易燃液体,具有易燃性爆炸范围较窄,但数值较低,具有爆炸危险性,同时原油的易沸溢性,应在救火工作时引起特别重视。
Crude oil is a B class of flammable liquids, flammable and explosive limit is narrower, but the value is low, explosion has a certain risk, while crude oil is easy to Feiyi, special attention should be paid to the fire fighting work.
 
二火灾爆炸事故原因分析
Analysis of the causes of two fire and explosion accidents
原油的特性决定了火灾爆炸危险性是大型原油储罐主要也是重要的危险因素。发生着火事故的三个必要条件为:着火源、可燃物和空气。
The characteristics of crude oil determine that the risk of fire and explosion is the most important and most important risk factor for large crude oil storage tanks. The three necessary conditions for a fire accident are the fire, the combustibles and the air.
 
着火源
ignition source
 
The problem of the fire source is mainly solved by strengthening management, and the fire source is forbidden to be brought to the storage area.
 
可燃物和空气
Combustibles and air
 
泄漏的原油暴露在空气中,即构成可燃物。原油泄漏,在储运中发生较为频繁,主要有冒罐跑油,脱水跑油,设备、管线、阀件损坏跑油,以及密封不良造成油气挥发,另外还存在着罐底开焊破裂、浮盘沉底等特大型泄漏事故的可能性。
The leaked crude oil is exposed to the air, which constitutes a combustible. The oil spill, more frequent in storage and transportation, the main oil tank oil run run run, dehydration, equipment, pipeline, valve damage caused by poor sealing and running oil, volatile oil and gas, there is also a possibility of tank rupture, welding and other large floating plate bottom leakage accident.
 
腐蚀是发生泄漏的重要因素之一。国内外曾发生多起因油罐底部腐蚀造成的漏油事故。
Corrosion is one of the most important factors for leakage. There have been oil leakage accidents caused by the bottom corrosion of oil tanks at home and abroad.
 
对原油储罐内腐蚀情况初步调查的结果表明,罐底腐蚀情况严重,大多为溃疡状的坑点腐蚀,主要发生在焊接热影响区、凹陷及变形处,罐顶腐蚀次之,为伴有孔蚀的不均匀全面腐蚀,罐壁腐蚀较轻,为均匀点蚀,主要发生在油水界面,油与空气界面处。相对而言,储罐底部的外腐蚀更为严重,主要发生在边缘板与环梁基础接触的一面。