公开(公告)号：US12123661B2

公开(公告)日：2024-10-22

申请号：US16757836

申请日：2018-10-25

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Guoqing Wang ,  Junjie Liu ,  Lijun Zhang ,  Cong Zhou ,  Zhaobin Zhang ,  Shasha Yang ,  Dongfa Shen ,  Xiaofeng Li ,  Shifang Yang ,  Zhiguo Du ,  Yonggang Zhang ,  Ying Shi ,  Jinghang Guo

IPC分类号： F28F1/40 ,  C10G9/20 ,  F28D21/00 ,  F28F1/00 ,  F28F1/10 ,  F28F13/08 ,  F28F13/12

CPC分类号： F28F1/40 ,  C10G9/20 ,  F28F1/006 ,  F28F1/10 ,  F28F13/08 ,  F28F13/12 ,  F28D2021/0024 ,  F28D2021/0056 ,  F28D2021/0075 ,  F28F2270/00

摘要： 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.

公开(公告)号：US11466151B2

公开(公告)日：2022-10-11

申请号：US16343711

申请日：2017-10-20

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Cui Zheng ,  Guixiang Zhu ,  Lizhi Liu ,  Wei Zhang ,  Xuerong Yao ,  Minqiao Ren ,  Ling Han ,  Yi Ren ,  Nan Chen ,  Ying Shi

IPC分类号： C08L67/02 ,  A61F5/01 ,  A61L15/12 ,  A61L15/14 ,  A63B71/10 ,  C08L67/03 ,  A63B71/12 ,  B29B9/06 ,  B29K67/00

摘要： A polyester composition includes a first polyester selected from one or more of aliphatic-aromatic copolyesters, which is a copolymer comprising repeating units A as shown in formula (I) and repeating units B as shown in formula (II), in which m is an integer of 2 to 10 and n is an integer of 2 to 8; p is an integer of 2 to 10; and m, n and p are the same or different from each other. Optionally, the polyester composition has a second polyester. The polyester composition includes at least two polyesters. The polyester composition can be used in shape memory materials, 3D print wires, heat shrinkable sleeves, functional layers, medical limb immobilization braces, heat shrinkable thin films, nonwoven fabrics, elastic fibers, etc.

公开(公告)号：US11976891B2

公开(公告)日：2024-05-07

申请号：US16758155

申请日：2018-10-25

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Guoqing Wang ,  Junjie Liu ,  Lijun Zhang ,  Cong Zhou ,  Zhaobin Zhang ,  Shasha Yang ,  Dongfa Shen ,  Xiaofeng Li ,  Shifang Yang ,  Zhiguo Du ,  Yonggang Zhang ,  Ying Shi ,  Jinghang Guo

IPC分类号： F28F1/40 ,  C10G9/20 ,  F28F1/00 ,  F28F1/10 ,  F28F13/08 ,  F28F13/12 ,  F28D21/00

CPC分类号： F28F1/40 ,  C10G9/20 ,  F28F1/006 ,  F28F1/10 ,  F28F13/08 ,  F28F13/12 ,  F28D2021/0024 ,  F28D2021/0056 ,  F28D2021/0075 ,  F28F2270/00

摘要： 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), the fin (11) spirally extends in an axial direction of the pipe body (10), wherein a height of the fin (11) gradually increases from one end in at least a part extension of the fin. The heat transfer enhancement pipe can reduce thermal stress of itself, thereby increasing service life of the heat transfer enhancement pipe.