The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Mar. 28, 2008
Guoqing Wang, Beijing, CN;
Lijun Zhang, Beijing, CN;
Zhiguo Du, Beijing, CN;
Shuo Chen, Beijing, CN;
Zhaobin Zhang, Beijing, CN;
Cong Zhou, Beijing, CN;
Xianfeng Zhou, Beijing, CN;
Guoqing Wang, Beijing, CN;
Lijun Zhang, Beijing, CN;
Zhiguo Du, Beijing, CN;
Shuo Chen, Beijing, CN;
Zhaobin Zhang, Beijing, CN;
Cong Zhou, Beijing, CN;
Xianfeng Zhou, Beijing, CN;
Abstract
This invention relates to a tubular cracking furnace, especially an ethylene cracking furnace, which comprises a convection section and a or dual radiant section(s), at least one heat transfer intensifying member arranged in at least one pass each radiant tube in said radiant section, said at least one heat transfer intensifying member comprises a first heat transfer intensifying member, which is arranged at a location between 10D and 25D upstream of the extreme point of said at least one pass radiant tube metal temperature, wherein D is the inner diameter of the radiant tube having heat transfer intensifying members. The present invention could achieve the best enhanced heat transfer result with given number of heat transfer intensifying member, by optimizing the locations of heat transfer intensifying members in the radiant tube.