Sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG

Patent metadata

Field	Value
Publication number	US-12487033-B2
Application number	US-202117928120-A
Country	US
Kind code	B2
Filing date	May 14, 2021
Priority date	May 27, 2020
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG, wherein a top of an outer cylinder has a shell-side refrigerant inlet and a bottom thereof has a shell-side refrigerant outlet; a sinusoidal corrugated tube-type liquid distributor is below the shell-side refrigerant inlet, a first sinusoidal corrugated winding tube bundle and a second sinusoidal corrugated winding tube bundle, which are heat exchanger tubes with a sinusoidal wave shape, are inside the outer cylinder, and peaks and troughs of the first sinusoidal corrugated winding tube bundle and the second sinusoidal corrugated winding tube bundle are in staggered correspondence one by one from top to bottom; a sinusoidal corrugated tube-type liquid distributor includes a one-into-two-type tube, a two-into-four-type tube, two sinusoidal corrugated tube-type liquid distribution tubes from top to bottom.

First claim

What is claimed is:

1 . A sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG, comprising:
an outer cylinder, wherein an inlet for shell-side refrigerant being provided at a top of the outer cylinder and an outlet for shell-side refrigerant being provided at a bottom of the outer cylinder; a sinusoidal corrugated tube-type liquid distributor being provided below the inlet for shell-side refrigerant, wherein; two sinusoidal corrugated winding tube bundles longitudinally arranged inside the outer cylinder are a first sinusoidal corrugated winding tube bundle and a second sinusoidal corrugated winding tube bundle respectively, the two sinusoidal corrugated winding tube bundles are heat exchanger tubes with a sinusoidal wave shape, and peaks and troughs of the first sinusoidal corrugated winding tube bundle itself and peaks and troughs of the second sinusoidal corrugated winding tube bundle itself respectively are in staggered correspondence one by one from the top to the bottom.

2 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein: a diameter of the peak of the sinusoidal corrugated winding tube bundle ranges from 8 mm to 14 mm, a diameter of the trough of the sinusoidal corrugated winding tube bundle ranges from 6 mm to 12 mm, a diameter difference between the peak and the trough ranges from 1.5 mm to 2.5 mm, and an axial distance between the adjacent peak and trough is 4-8 mm.

3 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein: a top end and a bottom end of the first sinusoidal corrugated winding tube bundle are connected to a side wall of the outer cylinder respectively, wherein an opening at the top end is an outlet for tube-side refrigerant and an opening at the bottom end is an inlet for tube-side refrigerant.

4 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein: a top end and a bottom end of the second sinusoidal corrugated winding tube bundle are connected to the side wall of the outer cylinder respectively, wherein an opening at the top end is an outlet for natural gas and an opening at the bottom end is an inlet for natural gas.

5 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein: a central barrel is further provided inside the outer cylinder, the first sinusoidal corrugated winding tube bundle and the second sinusoidal corrugated winding tube bundle are wound together on an outer surface of the central barrel, and the central barrel supports the first sinusoidal corrugated winding tube bundle and the second sinusoidal corrugated winding tube bundle.

6 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein:
the sinusoidal corrugated tube-type liquid distributor comprises a one-into-two-type tube, a two-into-four-type tube, two sinusoidal corrugated tube-type liquid distribution tubes from a top to a bottom of the sinusoidal corrugated tube-type liquid distributor, the one-into-two-type tube comprises a main tube and two branch tubes connected vertically, the main tube is communicated to the shell-side refrigerant inlet, the two-into-four-type tube comprises two offset tubes and four distribution branch tubes, the two offset tubes are communicated to the ends of the two branch tubes respectively, and each two of the four distribution branch tubes are communicated to ends of respective ones of the two offset tubes, the two sinusoidal corrugated tube-type liquid distribution tubes are circular in structure respectively, and ends of each of the four distribution branch tubes are connected to the two sinusoidal corrugated tube-type liquid distribution tubes.

7 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 6 , wherein: a side wall of the two sinusoidal corrugated tube-type liquid distribution tube is a sinusoidal wave-type structure, and spray ports are provided at peaks of a bottom of the two sinusoidal corrugated tube-type liquid distribution tube.

8 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 6 , wherein: the two sinusoidal corrugated tube-type liquid distribution tubes are a first sinusoidal corrugated tube-type liquid distribution tube and a second sinusoidal corrugated tube-type liquid distribution tube respectively, a diameter of the first sinusoidal corrugated tube-type liquid distribution tube is smaller than a diameter of the second sinusoidal corrugated tube-type liquid distribution tube, and the first sinusoidal corrugated tube-type liquid distribution tube is located on an outer side of the second sinusoidal corrugated tube-type liquid distribution tube, the distribution branch tubes are located between the two sinusoidal corrugated tube-type liquid distribution tubes, of which two ends are communicated to the two sinusoidal corrugated tube-type liquid distribution tubes respectively.

9 . The sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG according to claim 1 , wherein: positions of each of peaks and troughs of the first sinusoidal corrugated winding tube bundle and the second sinusoidal corrugated winding tube bundle are in staggered correspondence one by one from top to bottom, the positions of the peaks and troughs of the first sinusoidal corrugated wingding tube bundle are located outside the positions of the peaks and troughs of the second sinusoidal corrugated winding tube bundle, the first sinusoidal corrugated tube-type liquid distribution tube and the positions of each of the peaks and troughs of the first sinusoidal corrugated winding tube bundle are in staggered correspondence one by one from top to bottom, and the second sinusoidal corrugated tube-type liquid distribution tube and the positions of each of the peaks and troughs of the second sinusoidal corrugated winding tube bundle are in staggered correspondence one by one from top to bottom.

10 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 1 .

11 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 2 .

12 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 3 .

13 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 4 .

14 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 5 .

15 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 6 .

16 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 7 .

17 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 8 .

18 . A floating production system comprising the sinusoidal corrugated tube-type spiral wounded heat exchanger suitable for FLNG of claim 9 .

Assignees

• Univ China Petroleum East China

Inventors

• Han Hui
• Li Yuxing
• Zhu Jianlu
• Sun Chongzheng
• Liu cuiwei
• Hu Qihui
• Wang Wuchang
• Yu Xinran
• Liu Liang
• Wang Guocong
• Zhou Hui

Classifications

• F28F25/02

  for distributing, circulating, and accumulating liquid (spraying or atomising in general B05B, B05D) · CPC title

• F28F9/00

  Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings · CPC title

• F25J5/002

  for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger · CPC title

• F25J2290/72

  Processing device is used off-shore, e.g. on a platform or floating on a ship or barge · CPC title

• F28D7/0083

  with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium · CPC title