天然气蒸汽转化炉运行中存在的问题及解决措施
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摘要
通过对天然气蒸汽转化顶部烧嘴转化炉在运行中出现的转化管在距顶部2～4米范围蠕变破裂、转化管弯曲变形、烧嘴火焰刚性差、火焰局部添管等异常现象和长周期运行时间短的问题进行技术分析,在此基础上从燃烧系统、转化炉炉管材质和维护保养、炉管恒力弹簧支吊架的载荷与热位移方面提出了切实有效的解决措施,并予以实施,取得了良好的效果,延长了装置长周期运行时间。
Based on technical analysis of abnormal phenomena such as creep rupture of the reforming pipe in the range of 2 ～ 4 m from the top,bending deformation,poor flame rigidity of burner,partial pipe addition of flame and short running time of reformer tube in the operation of top burner reformer for natural gas steam reforming,the combustion process was discussed. The system, the material and maintenance of converter tube, and the load and thermal displacement of the constant force spring support hanger of furnace tube were put forward and implemented,which achieved good results and prolonged the long-term running time of the device.
Based on technical analysis of abnormal phenomena such as creep rupture of the reforming pipe in the range of 2 ～ 4 m from the top,bending deformation,poor flame rigidity of burner,partial pipe addition of flame and short running time of reformer tube in the operation of top burner reformer for natural gas steam reforming,the combustion process was discussed. The system, the material and maintenance of converter tube, and the load and thermal displacement of the constant force spring support hanger of furnace tube were put forward and implemented,which achieved good results and prolonged the long-term running time of the device.
引文
[1] SH/T 3113-2000石油化工管式燃烧器工程技术条件[S].
[2]罗飞.天然气蒸汽转化管剩余寿命预测[J].石油与天然气化工,2005,34(4):335-338.
[3]武文斌,胡乙川.制氢转化炉炉管弯曲变形分析及对策[J].石油化工设备,2010,39(1):15-22.
[4]张向慧.恒力弹簧支吊架的优化设计[J].新技术新工艺,2009(9):27-29.
[5]林其略.周美芳.管道支吊技术[M].上海:上海科学技术出版社,1994:21-33.
[6]许文斌.新型恒力弹簧支吊架原理及其应用//中国石油和化工勘察设计协会热工设计专业委员会、全国化工热工设计技术中心站年会[C].2007.
[2]罗飞.天然气蒸汽转化管剩余寿命预测[J].石油与天然气化工,2005,34(4):335-338.
[3]武文斌,胡乙川.制氢转化炉炉管弯曲变形分析及对策[J].石油化工设备,2010,39(1):15-22.
[4]张向慧.恒力弹簧支吊架的优化设计[J].新技术新工艺,2009(9):27-29.
[5]林其略.周美芳.管道支吊技术[M].上海:上海科学技术出版社,1994:21-33.
[6]许文斌.新型恒力弹簧支吊架原理及其应用//中国石油和化工勘察设计协会热工设计专业委员会、全国化工热工设计技术中心站年会[C].2007.