Heat exchange member, heat exchanger and heat conductive member

Patent metadata

Field	Value
Publication number	US-11920874-B2
Application number	US-202117453021-A
Country	US
Kind code	B2
Filing date	Nov 1, 2021
Priority date	Feb 9, 2021
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A heat exchange member includes: a honeycomb structure including: an outer peripheral wall; an inner peripheral wall; and partition walls arranged between the outer peripheral wall and the inner peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path for a first fluid; and a covering member for covering an outer peripheral surface of the outer peripheral wall. In a cross section of the honeycomb structure orthogonal to a flow path direction for the first fluid, the partition walls extend in a radial direction. Each of the cells is formed from the outer peripheral wall, the inner peripheral wall, and the partition walls.

First claim

The invention claimed is:

1. A heat exchange member, comprising:
a honeycomb structure comprising: an outer peripheral wall; an inner peripheral wall; and partition walls arranged between the outer peripheral wall and the inner peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path for a first fluid; and
a covering member for covering an outer peripheral surface of the outer peripheral wall,
wherein in a cross section of the honeycomb structure orthogonal to a flow path direction for the first fluid, the partition walls extend in a radial direction,
wherein each of the cells is formed from the outer peripheral wall, the inner peripheral wall, and the partition walls, and
wherein, in the cross section of the honeycomb structure orthogonal to the flow path direction for the first fluid, a ratio of the number of the partition walls to an outer diameter (mm) of the honeycomb structure is 2.3 partition walls/mm or more.

2. The heat exchange member according to claim 1 , wherein the ratio of the number of the partition walls to the outer diameter (mm) of the honeycomb structure is 3.2 partition walls/mm or more.

3. The heat exchange member according to claim 1 , wherein, in the cross section of the honeycomb structure orthogonal to the flow path direction for the first fluid, an aspect ratio of each of the cells is 3 or more.

4. A heat exchanger, comprising:
the heat exchange member according to claim 1 ; and
an outer cylinder arranged at an interval on a radially outer side of the covering member so that a second fluid can circulate around an outer periphery of the covering member.

5. A heat exchange member, comprising:
a honeycomb structure comprising: an outer peripheral wall; an inner peripheral wall; and partition walls arranged between the outer peripheral wall and the inner peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path for a first fluid; and
a covering member for covering an outer peripheral surface of the outer peripheral wall,
wherein in a cross section of the honeycomb structure orthogonal to a flow path direction for the first fluid, the partition walls comprise partition walls extending in a radial direction, and a ratio of the number of partition walls extending in the radial direction to an outer diameter (mm) of the honeycomb structure is 3.2 partition walls/mm or more.

6. The heat exchange member according to claim 5 , wherein an aspect ratio of each of the cells is 3 or more.

7. A heat conductive member, comprising a honeycomb structure comprising: an outer peripheral wall; an inner peripheral wall; and partition walls arranged between the outer peripheral wall and the inner peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path for a first fluid,
wherein the outer peripheral wall, the inner peripheral wall, and the partition walls comprise a Si—SiC material based on SiC particles as an aggregate, wherein a metal Si is contained between the SiC particles,
wherein in a cross section of the honeycomb structure orthogonal to a flow path direction for the first fluid, the partition walls extend in a radial direction,
wherein each of the cells is formed from the outer peripheral wall, the inner peripheral wall, and the partition walls, and
wherein, in the cross section of the honeycomb structure orthogonal to the flow path directionfor the first fluid, a ratio of the number of the partition walls to an outer diameter (mm) of the honeycomb structure is 2.3 partition walls/mm or more.

8. The heat conductive member according to claim 7 , wherein, in the cross section of the honeycomb structure orthogonal to the flow path direction for the first fluid, an aspect ratio of each of the cells is 3 or more.

9. A heat conductive member, comprising a honeycomb structure comprising: an outer peripheral wall; an inner peripheral wall; and partition walls arranged between the outer peripheral wall and the inner peripheral wall, the partition walls defining a plurality of cells, each of the cells extending from a first end face to a second end face to form a flow path for a first fluid,
wherein the outer peripheral wall, the inner peripheral wall, and the partition walls comprise a Si—SiC material based on SiC particles as an aggregate, wherein a metal Si is contained between the SiC particles, and
wherein in a cross section of the honeycomb structure orthogonal to a flow path direction for the first fluid, the partition walls comprise partition walls extending in a radial direction, and a ratio of the number of partition walls extending in the radial direction to an outer diameter (mm) of the honeycomb structure is 3.2 partition walls/mm or more.

Assignees

• Ngk Insulators Ltd

Inventors

• Kimura Daisuke
• Kawaguchi Tatsuo

Classifications

• F28D7/106 Primary

  consisting of two coaxial conduits or modules of two coaxial conduits · CPC title

• F28D7/12

  the surrounding tube being closed at one end, e.g. return type (F28D7/14 takes precedence) · CPC title

• F28F1/022

  with multiple channels · CPC title

• F28F1/40

  the means being only inside the tubular element · CPC title

• F28D20/00 Primary

  Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 · CPC title