摘要
隔热油管的技术寿命是指隔热油管保持必要隔热性能的持续使用时间。影响隔热油管技术寿命的主要因素是气害，特别是氢害。在分析氢害产生原因的基础上，提出了改进内外管材质、表面涂敷低辐射防腐层、包贴保护钢皮、用吸气剂和吸附材料吸收和吸附环空中的有害气体等防氢渗设计方案。同时也指明了在制造过程中要对选用的钢管严格进行预处理和高温去气、提高抽真空质量等防气害工艺措施。最后提出了在使用过程中应当遵循的防气害措施。
The technical life of an insulated tubing refers to the service period of the tubing sustaining the prerequisite heat insulating property. The main factor influencing the technical life of the tubing is the gas harm, particularly the hydrogen harm. The author presents some anti-hydrogen-harm measures, including improving the material properties of the internal and external steel pipes, applying low-rediating corrosion-resistant coating on pipe surface.and means for absorbing the harmful gas in the annular space, and points out that, in manufacturing insulated tubings, the steel pipe used should be strictly pretreated and degassed,and the degree of vacuum of tubing annulus should be raised.
出处
《石油机械》
北大核心
1994年第8期1-7,共7页
China Petroleum Machinery
关键词
隔热
油管
性能
制造
设计
insulated tubing property influencing factor manufacture
