US2024302113A1PendingUtilityA1
Heat recovery member and heat exchanger
Est. expiryMar 9, 2043(~16.6 yrs left)· nominal 20-yr term from priority
F28F 21/083F28F 21/04F28F 9/26F28F 7/00F28F 21/081F28F 21/08F28D 17/02F28F 21/082F28F 9/027F28F 9/028
64
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Claims
Abstract
A heat recovery member includes: a metal pipe having a straight portion; and a honeycomb structure having an outer peripheral wall and a plurality of partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells each extending from a first end face to a second end face, the honeycomb structure being disposed in the straight portion of the metal pipe. The straight portion of the metal pipe is fixed by interference fitting to the outer peripheral wall parallel to an extending direction of the cells of the honeycomb structure.
Claims
exact text as granted — not AI-modified1 . A heat recovery member comprising:
a metal pipe having a straight portion; and a honeycomb structure having an outer peripheral wall and a plurality of partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells each extending from a first end face to a second end face, the honeycomb structure being disposed in the straight portion of the metal pipe, wherein the straight portion of the metal pipe is fixed by interference fitting to the outer peripheral wall parallel to an extending direction of the cells of the honeycomb structure, and satisfies a relationship of the following equation (1):
an
inner
diameter
[
mm
]
of
the
straight
portion
in
a
region
other
than
an
interference
fitting
fixed
region
×
a
nominal
strain
[
%
]
at
a
yeild
point
of
the
metal
pipe
/
100
≤
(
an
outer
diameter
[
mm
]
of
the
honeycomb
structure
-
the
inner
diameter
[
mm
]
of
the
straight
portion
in
the
region
other
than
the
interference
fitting
fixed
region
)
.
(
1
)
2 . The heat recovery member according to claim 1 , wherein in a cross section parallel to an axial direction of the metal pipe, a contact index X between the honeycomb structure and the metal pipe, represented by the following equation (2), is 0 or more:
X
=
(
Lhsin
θ
-
(
Dhcos
θ
-
Dp
)
)
/
2
(
2
)
in which Lh is a difference [mm] between positions of the first end face or the second end face of the honeycomb structure in an axial direction, θ is an angle (°) formed by a direction orthogonal to the axial direction and the first end face or the second end face, Dh is a length of the honeycomb structure in the extending direction of the cells, and Dp is an inner diameter [mm] of the straight portion in the region other than the interference fitting fixed region.
3 . The heat recovery member according to claim 1 , wherein the honeycomb structure is a hollow honeycomb structure further having an inner peripheral wall, the partition walls being disposed between the outer peripheral wall and the inner peripheral wall.
4 . The heat recovery member according to claim 1 , wherein the honeycomb structure is made of a Si—SiC material.
5 . The heat recovery member according to claim 1 , wherein the metal pipe is a stainless steel pipe.
6 . A heat exchanger comprising:
the heat recovery member according to claim 1 ; and an outer cylindrical member disposed at an interval on an outer side in a radial direction of the metal pipe so that a fluid can flow around an outer periphery of the metal pipe.Join the waitlist — get patent alerts
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