ENHANCED HEAT TRANSFER PIPE, AND PYROLYSIS FURNACE AND ATMOSPHERIC AND VACUUM HEATING FURNACE COMPRISING SAME

Title:

ENHANCED HEAT TRANSFER PIPE, AND PYROLYSIS FURNACE AND ATMOSPHERIC AND VACUUM HEATING FURNACE COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2019/080886

Kind Code:

A1

Abstract:

An enhanced heat transfer pipe, and a pyrolysis furnace and an atmospheric and vacuum heating furnace comprising same. The enhanced heat transfer pipe (1) comprises a tubular pipe body (10) provided with an inlet (100) for a fluid to enter and an outlet (101) for the fluid to exit, an inner wall of the pipe body (10) being provided with ribs (11) which protrude towards the inside of the pipe body (10), the ribs (11) extending along the axial direction of the pipe body (10) in a spiral shape, the height of the ribs (11) gradually increasing from one end at least within a portion of the rib extension range. The thermal stress of the enhanced heat transfer pipe (1) can be reduced, thereby increasing the service life of the enhanced heat transfer pipe (1).

Inventors:

WANG GUOQING (CN)
LIU JUNJIE (CN)
ZHANG LIJUN (CN)
ZHOU CONG (CN)
ZHANG ZHAOBIN (CN)
YANG SHASHA (CN)
SHEN DONGFA (CN)
LI XIAOFENG (CN)
YANG SHIFANG (CN)
DU ZHIGUO (CN)
ZHANG YONGGANG (CN)
SHI YING (CN)
GUO JINGHANG (CN)

Application Number:

PCT/CN2018/111797

Publication Date:

May 02, 2019

Filing Date:

October 25, 2018

Export Citation:

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Assignee:

CHINA PETROLEUM & CHEM CORP (CN)
BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP (CN)

International Classes:

C10G9/20; F28F1/40

Foreign References:

CN104560111A	2015-04-29
CN104833242A	2015-08-12
CN106959032A	2017-07-18
US20150300746A1	2015-10-22
CN203443422U	2014-02-19
US5605400A	1997-02-25

Other References: