Heat transfer enhancement pipe as well as cracking furnace and atmospheric and vacuum heating furnace including the same

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United States of America Patent

PATENT NO 12123661
APP PUB NO 20210190442A1
SERIAL NO

16757836

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Abstract

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The present invention relates to the field of fluid heat transfer, and discloses a heat transfer enhancement pipe as well as a cracking furnace and an atmospheric and vacuum heating furnace including the same. The heat transfer enhancement pipe (1) includes a pipe body (10) of tubular shape having an inlet (100) for entering of a fluid and an outlet (101) for said fluid to flow out; internal wall of the pipe body (10) is provided with a fin (11) protruding towards interior of the pipe body (10), wherein the fin (11) has one or more fin sections extending spirally in the axial direction of the pipe body (10), and each fin section has a first end surface facing the inlet (100) and a second end surface facing the outlet (101), at least one of the first end surface and the second end surface of at least one of the rib sections is formed as a transition surface along spirally extending direction. The heat transfer enhancement pipe can reduce thermal stress of itself, thereby increasing service life of the heat transfer enhancement pipe.

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Patent Owner(s)

  • CHINA PETROLEUM & CHEMICAL CORPORATION; BEJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Zhiguo Beijing, CN 10 14
Guo, Jinghang Beijing, CN 3 2
Li, Xiaofeng Beijing, CN 254 3569
Liu, Junjie Beijing, CN 117 1564
Shen, Dongfa Beijing, CN 3 2
Shi, Ying Beijing, CN 116 1715
Wang, Guoqing Beijing, CN 70 263
Yang, Shasha Beijing, CN 6 2
Yang, Shifang Beijing, CN 13 144
Zhang, Lijun Beijing, CN 174 2085
Zhang, Yonggang Beijing, CN 29 55
Zhang, Zhaobin Beijing, CN 42 42
Zhou, Cong Beijing, CN 42 94

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