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| 氨合成塔冷气副线异径管爆裂事故分析 | |
| 引用本文： | 林清宇,林靖宇,林榕端,张桂友.氨合成塔冷气副线异径管爆裂事故分析[J].压力容器,2007,24(5):58-59,31. |
| 作者姓名： | 林清宇 林靖宇 林榕端 张桂友 |
| 作者单位： | 1. 广西大学,化学化工学院,广西,南宁,530004 2. 广西大学,电气工程学院,广西,南宁,530004 3. 桂林化工机械厂,广西,桂林,541002 |
| 摘 要： | 某厂氨合成塔冷气副线异径管发生爆裂事故,进行技术检验后分析了爆裂原因,材质为20钢的异径管内是高压富氢介质,氢分压21 MPa,该冷气副线长期处于关闭状态,由于副线中心管填料密封失效,使异径管长期超温工作,异径管在超温高压富氢介质工况下发生了氢腐蚀低应力脆性断裂。对此提出了若干建议。 |
| 关 键 词： | 异径管 爆裂 氢腐蚀 |
| 文章编号： | 1001-4837（2007）05-0058-02 |
| 修稿时间： | 2007-03-08 |
Analyse on Cracking Accident of Tapered Pipe in Air-cooling Accessory Line of A Certain Ammonia Synthetic Tower |
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| LIN Qing-yu,LIN Jing-yu,LIN Rong-duan,ZHANG Gui-you.Analyse on Cracking Accident of Tapered Pipe in Air-cooling Accessory Line of A Certain Ammonia Synthetic Tower[J].Pressure Vessel Technology,2007,24(5):58-59,31. | |
| Authors: | LIN Qing-yu LIN Jing-yu LIN Rong-duan ZHANG Gui-you |
| Abstract: | The tapered pipe in air - cooling accessory line of a certain ammonia synthetic tower was cracked. The reason for cracking is analyzed after the technical inspection. The high - pressure hydrogenous medium is in the tapered pipe make of steel 20. The pressure of hydrogen is 21 MPa. The air - cooling accessory line had been closing perennially. The stuffing seal on the central pipe of the accessory line was invalid, which make the tapered pipe overheated chronically. As a result, the hydrogen- type corrosive low- stress brittle fracture occurred in the tapered pipe under the condition of overheated high- pressure hydrogenous medium. So some proposals are offered. |
| Keywords: | tapered pipe cracking hydrogen - type corrosion |
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