石油科技论坛

石油科技论坛 ›› 2017, Vol. 36 ›› Issue (增刊): 76-79.DOI: 10. 3969/ j. issn. 1002-302x. 2017. z1. 021

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X80钢级DN1200 低温三通

刘金生　祝　鹏　李玉卓　邹　峰　晏利君   

  1. 中油管道机械制造有限责任公司
  • 出版日期:2018-03-25 发布日期:2018-04-13
  • 基金资助:
    中国石油天然气集团公司科学研究与技术开发项目“中俄东线站场低温环境( -45℃) 用D1422X1219 X80 三 通研制” (编号: 2016B-3004-0501)。

DN1200 Low-temperature Tee of X80 Steel Grade

Liu Jinsheng, Zhu Peng, Li Yuzhuo, Zou Feng, Yan Lijun   

  1. China Petroleum Pipeline Machinery Manufacturing Co Ltd, Langfang 065000, China
  • Online:2018-03-25 Published:2018-04-13

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摘要： 高钢级、大口径和极端环境下服役的管道是国际石油天然气管线的前沿技术。中俄东线天然气管道工程 国内段的设计温度为-45℃, 与之配套的压力管道元件的研究迫在眉睫。通过分析热挤压三通的设计、选材、制造工 艺, 总结出了高钢级、大口径、低温热挤压三通的结构设计、原材料成分、热成型及热处理控制等方面关键技术, 为 中俄东线X80 钢级低温管道提供了合格配套产品。

关键词: 80 钢级; 大口径; 低温; 三通; 热处理; 理化性能

Abstract: Pipeline of high steel grade, large diameter and service under the extreme environment is the international frontier technology of oil and gas pipeline. The designed temperature is -45℃ for the domestic segment of the eastern Chinese-Russian natural gas pipeline project. Therefore, the research on pressure piping components for the project is of great urgency. This paper analyzes design, materials and manufacturing process of thermo - extruded tee and summarizes the key technologies of high steel graded, large - diameter and low - temperature thermo-extruded tee, such as structural design, raw material composition, thermoforming and heat treatment control, aiming to provide the related qualified products for the eastern Chinese-Russian low-temperature pipeline of X80 steel grade.

Key words: X80 steel grade, large diameter, low temperature, tee, heat treatment, physical and chemical properties