Heat exchanger and replacement method of heat exchange core

Patent metadata

Field	Value
Publication number	US-2022268527-A1
Application number	US-202217575028-A
Country	US
Kind code	A1
Filing date	Jan 13, 2022
Priority date	Feb 19, 2021
Publication date	Aug 25, 2022
Grant date	—

Abstract

A heat exchanger according to one embodiment includes: a heat exchange core; a shell provided to surround the heat exchange core; and a first partition wall that is provided in a space surrounded by an outer surface of the heat exchange core and an inner surface of the shell, and partitions the space into a first header space communicating with the heat exchange core and a second header space communicating with the heat exchange core. The first header space and the second header space are adjacent to each other, separated by the first partition wall.

First claim

1 . A heat exchanger comprising:
a heat exchange core; a shell provided to surround the heat exchange core; and a first partition wall that is provided in a space surrounded by an outer surface of the heat exchange core and an inner surface of the shell, and partitions the space into a first header space communicating with the heat exchange core and a second header space communicating with the heat exchange core, wherein the first header space and the second header space are adjacent to each other, separated by the first partition wall.

2 . The heat exchanger according to claim 1 , wherein
the heat exchange core has a columnar shape, the first partition wall partitions the space such that the space on one side along an axis of the columnar shape is the first header space and the space on another side is the second header space in the space, and the first header space and the second header space are surrounded by the outer surface corresponding to a peripheral surface of the columnar shape.

3 . The heat exchanger according to claim 1 , further comprising:
a first sealing member that seals the first header space and the second header space.

4 . The heat exchanger according to claim 3 , wherein
the first sealing member is an O-ring that seals the first partition wall and the shell.

5 . A heat exchanger according to claim 1 , further comprising:
a second partition wall that is provided in the space surrounded by an outer surface of the heat exchange core and an inner surface of the shell, and partitions the space into a third header space communicating with the heat exchange core and the first header space or the second header space, wherein the first header space or the second header space and the third header space are adjacent to each other, separated by the second partition wall.

6 . The heat exchanger according to claim 5 , wherein
the second partition wall is attached to the inner surface of the shell via an extendable member configured to extend along the axial direction of the shell.

7 . The heat exchanger according to claim 5 , further comprising:
a second sealing member that seals the first header space and the third header space.

8 . The heat exchanger according to claim 7 , wherein
the second sealing member is an O-ring that seals the second partition wall and the shell.

9 . The heat exchanger according to claim 1 , wherein
the shell has a cylindrical shape, the heat exchange core has a columnar shape, the heat exchange core is disposed in the shell such that an axis of the columnar shape becomes substantially parallel to an axis of the cylindrical shape, and the first partition wall separates the first header space and the second header space into one side and another side along an axis of the cylindrical shape.

10 . The heat exchanger according to claim 9 , wherein
the shell includes a first inside diameter portion having a first inside diameter, a second inside diameter portion having a second inside diameter larger than the first inside diameter, and a tapered portion having an inside diameter that gradually changes from the first inside diameter to the second inside diameter from the first inside diameter portion toward the second inside diameter portion.

11 . The heat exchanger according to claim 9 , wherein
a plurality of the heat exchange cores are disposed along an axis of the cylindrical shape in the shell.

12 . A replacement method of a heat exchange core comprising steps of:
uncoupling the shell and the heat exchange core of the heat exchanger according to claim 1 ; moving at least the heat exchange core from the shell in an axial direction of the shell to remove the heat exchange core from the shell; moving a new heat exchange core in the axial direction with respect to the shell from which the heat exchange core has been removed, and inserting the new heat exchange core into the shell; and coupling the shell and the new heat exchange core.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Yoshida Keisuke
• Kaneko Takeshi
• Tanimoto Koichi
• Nakaharai Hiroyuki
• Uefuji Yoichi
• Hara Nobuhide
• Kirihara Kenji
• Nagai Masahiko
• Iida Koichiro
• Takahashi Yuta
• Eguchi Shunsaku

Classifications

• B23P15/26

  heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} · CPC title

• B23P6/00

  Restoring or reconditioning objects (straightening or restoring form of sheet metal, metal rods, metal tubes, metal profiles, or specific articles made therefrom B21D1/00, B21D3/00; repairing defective or damaged objects by casting techniques B22D19/10) · CPC title

• F28D9/0093

  Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids · CPC title

• F28F2280/02

  Removable elements · CPC title

• F28D9/0006 Primary

  the plate-like or laminated conduits being enclosed within a pressure vessel · CPC title