石油科技论坛

石油科技论坛 ›› 2016, Vol. 35 ›› Issue (增刊): 151-152.DOI: 10. 3969/ j. issn. 1002-302x. 2016. z1. 050

• 成果推介 • 上一篇    下一篇

LNG 装置低温冷箱

谢　昍1　谭民邦2   

  1. 1. 中国寰球工程公司; 2. 四川空分设备(集团) 有限责任公司
  • 出版日期:2017-02-22 发布日期:2017-02-22
  • 基金资助:
    中国石油天然气集团公司重大科技专项“天然气液化关键技术研究” (编号: 2009E-19-03)。

Cryogenic Cold Box for LNG Device

Xie Xuan1, Tan Minbang2   

  1. 1. China Huanqiu Contracting & Engineering Corp. , Beijing 100012, China; 2. Sichuan Air Separation Plant (Group) Co. Ltd. , Jianyang 641400, China
  • Online:2017-02-22 Published:2017-02-22
  • Supported by:
     

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摘要： LNG 装置低温冷箱是用来实现原料天然气与冷剂之间热量交换的换热设备, 具有超低温、高压、多股流 及两相流换热等特点, 设计和生产制造存在难度, 长期依赖进口。中国寰球工程公司在独立开发天然气液化工艺技术 的基础上, 与四川空分设备(集团) 有限责任公司合作研制LNG 装置低温冷箱, 开发了多股流与两相流传热、耐高压 翅片结构及成型等多项关键技术, 在项目应用中效果完全达到了设计预期。

 

关键词: LNG, 低温冷箱, 板翅式, 换热器

Abstract: A cryogenic cold-box for an LNG device is used to realize the heat exchange between the raw natural gas and the coolant. It has the characteristics of ultra-low temperature, high pressure, heat transfer between multi-stream or/ and two-phase flows. The design and manufacture of the box are difficult. In China, it’s dependent on imports for a longtime. China Huanqiu Contracting & Engineering Corp. , on the basis of independent development of natural gas liquefaction process technology, cooperated with Sichuan Air Separation Plant (Group) Co Ltd (SCAS for short), prepared a cryogenic cold-box for LNG devices with a plate-fin heat exchanger as main body. The two companies developed a number of key technologies, such as multi-stream and two-phase flow heat transfer, high pressure-resistant fin structure and forming, etc. These technologies are successfully applied to 50×104t/ a and 60×104t/ a LNG devices, with a good effect. The overall technology and manufacturing quality of the product are leading at home and reach the advanced level abroad.

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