Heat transfer tube and cracking furnace using the heat transfer tube

US9359560B2 · 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: Oct 29, 2013
• Grant date: Jun 7, 2016
• Expiry date: Oct 29, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/2087
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The present disclosure relates to a heat transfer tube and a cracking furnace using the heat transfer tube. The heat transfer tube comprises a twisted baffle arranged in an inner wall of the tube, said twisted baffle extending spirally along an axial direction of the heat transfer tube. The twisted baffle defines a closed circle viewed from an end of the heat transfer tube. Along the trajectory of the circle a casing is arranged, which is fixedly connected to a radial inner end of the twisted baffle. The twisted baffle is provided with a plurality of holes. The heat transfer tube according to the present disclosure has a good heat transfer effect and small pressure loss.