Heat transfer tube and cracking furnace using the same

US11215404B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Guoqing Wang · Beijing, CN
• Lijun Zhang · Shandong, CN
• Xianfeng Zhou · Meridian, US
• Junjie Liu · Shandong, CN
• Zhiguo Du · Beijing, CN
• Yonggang Zhang · Suzhou, CN
• Zhaobin Zhang · San Diego, US
• Cong Zhou · Nanhu, CN

Key dates

• Filing date: Dec 26, 2018
• Grant date: Jan 4, 2022
• Expiry date: Mar 1, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F2215/00
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A heat transfer tube includes a twisted baffle arranged in an inner wall of the tube. The twisted baffle extends spirally along an axial direction of the heat transfer tube. The twisted baffle is provided with a non-through gap extending along an axial direction of the heat transfer tube from an end to the other end of the twisted baffle. A cracking furnace uses the heat transfer tube. The heat transfer tube and cracking furnace have good heat transfer effects and small pressure loss.