U.S. patent application number 13/357392 was filed with the patent office on 2012-08-02 for high efficiency energy recovery core for ventilation.
This patent application is currently assigned to HONEYWELL (CHINA) CO., LTD.. Invention is credited to Ling Han, Longhao Jiang, Xinmin Liu.
Application Number | 20120196523 13/357392 |
Document ID | / |
Family ID | 44569328 |
Filed Date | 2012-08-02 |
United States Patent
Application |
20120196523 |
Kind Code |
A1 |
Jiang; Longhao ; et
al. |
August 2, 2012 |
HIGH EFFICIENCY ENERGY RECOVERY CORE FOR VENTILATION
Abstract
An energy recovery device includes a first fluid path extending
between a fresh air inlet and a fresh air outlet, and a second
fluid path extending between an exhaust inlet and an exhaust air
outlet. The first fluid path and the second fluid path may direct
flow in a direction that is substantially parallel to one another
through at least part of the energy recovery device. In some cases,
a bend may be provided in at least part of the energy recovery
device such that the first fluid path directs flow in a direction
that is at a first angle relative to fluid flow through the second
fluid path for a first portion of the first fluid path, and in a
direction that is at a second angle relative to fluid flow through
the second fluid path for a second portion of the first fluid
path.
Inventors: |
Jiang; Longhao; (Shanghai,
CN) ; Han; Ling; (Shanghai, CN) ; Liu;
Xinmin; (Shanghai, CN) |
Assignee: |
HONEYWELL (CHINA) CO., LTD.
Shanghai
CN
|
Family ID: |
44569328 |
Appl. No.: |
13/357392 |
Filed: |
January 24, 2012 |
Current U.S.
Class: |
454/237 |
Current CPC
Class: |
F24F 12/006 20130101;
F28F 13/06 20130101; Y02B 30/56 20130101; F28D 9/0037 20130101;
Y02B 30/563 20130101 |
Class at
Publication: |
454/237 |
International
Class: |
F24F 7/00 20060101
F24F007/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 30, 2011 |
CN |
201110032500.X |
Claims
1. An energy recovery device, comprising at least two frames which
are adjacently arranged, wherein said at least two frames comprise
fresh air-flow and exhaust air-flow frames, characterized in that
the fresh air-flow frame comprises fresh air-flow frame rods and a
plurality of fresh air-flow ducts arranged therein, with each fresh
air-flow duct having a fresh air-flow duct inlet, a fresh air-flow
duct outlet, and a bend section of the fresh air-flow duct for
connecting them; the exhaust air-flow frame comprises exhaust
air-flow frame rods and a plurality of exhaust air-flow ducts
arranged therein, with each exhaust air-flow duct having an exhaust
air-flow duct inlet, an exhaust air-flow duct outlet, and a bend
section of the exhaust air-flow duct for connecting them, wherein
the plurality of fresh air-flow ducts and the plurality of exhaust
air-flow ducts are in a mirror image arrangement such that the
fresh air-flow duct inlets and exhaust air-flow duct outlets are
located generally on the same side, and the fresh air-flow duct
outlets and the exhaust air-flow duct inlets are located generally
on the same side, so that the exhaust air-flow in the space to be
ventilated is discharged into the atmosphere from the exhaust
air-flow duct outlet after entering the exhaust air-flow duct inlet
and passing through the bend section of the exhaust air-flow duct,
and the fresh air-flow from the atmosphere enters into the space to
be ventilated through the bend section of the fresh air-flow duct
after entering the fresh air-flow duct inlet, the fresh air-flow
and the exhaust air-flow have energy exchange via the fresh
air-flow ducts and the exhaust air-flow ducts.
2. An energy recovery device according to claim 1, characterized in
that the fresh air-flow frame and the exhaust air-flow frame are
hexagons in shape; the fresh air-flow frame comprises a first fresh
air-flow frame rod, a second fresh air-flow frame rod, a third
fresh air-flow frame rod, a fourth fresh air-flow frame rod, a
fifth fresh air-flow frame rod and a sixth fresh air-flow frame;
and the exhaust air-flow frame comprises a first exhaust air-flow
frame rod, a second exhaust air-flow frame rod, a third exhaust
air-flow frame rod, a fourth exhaust air-flow frame rod, a fifth
exhaust air-flow frame rod and a sixth exhaust air-flow frame rod;
wherein the fresh air-flow duct inlets of the plurality of fresh
air-flow ducts are provided on the fifth fresh air-flow frame rod
of the fresh air-flow frame, the fresh air-flow duct outlets of the
plurality of fresh air-flow ducts are provided on the first fresh
air-flow frame rod of the fresh air-flow frame, the exhaust
air-flow duct inlets of the plurality of exhaust air-flow ducts are
provided on the second exhaust air-flow frame rod of the exhaust
air-flow frame, and the exhaust air-flow duct outlets of the
plurality of exhaust air-flow ducts are provided on the fourth
exhaust air-flow frame rod of the exhaust air-flow frame, so that
the flowing direction of the fresh air-flow in the fresh air-flow
ducts is opposite to the flowing direction of the exhaust air-flow
in the exhaust air-flow ducts.
3. An energy recovery device according to claim 1, characterized in
that each of the plurality of fresh air-flow ducts and each of the
plurality of exhaust air-flow ducts are "C-shaped" or
"L-shaped".
4. An energy recovery device according to claim 1, characterized in
that each of the plurality of fresh air-flow ducts has unequal
lengths, and they are spaced from one another unequally.
5. An energy recovery device according to claim 1, characterized in
that each of the plurality of exhaust air-flow ducts has unequal
lengths, and they are spaced from one another unequally.
6. An energy recovery device according to claim 4, characterized in
that the plurality of fresh air-flow ducts have different inlets
and outlets, respectively.
7. An energy recovery device according to claim 5, characterized in
that the plurality of exhaust air-flow ducts have different inlets
and outlets, respectively.
8. An energy recovery device according to claim 1, characterized in
that the energy recovery device further comprises a medium with
heat transmissibility and moisture permeability, which is arranged
between the at least two frames.
9. An energy recovery device according to claim 8, characterized in
that the medium with heat transmissibility and moisture
permeability arranged between the at least two frames is a membrane
and/or paper.
10. An energy recovery device according to claim 1, characterized
in that a cover lid is used for installing said at least two
frames.
11. An energy recovery device according to claim 1, characterized
in that the fresh air-flow frame, the exhaust air-flow frame, the
fresh air-flow ducts and the exhaust air-flow ducts are all made of
acrylonitrile-butadiene-styrene.
12. A Ventilation equipment, characterized in that said ventilation
equipment comprises a housing and an energy recovery device
according to claim 1, with said housing comprising a fresh air-flow
inlet, a fresh air-flow outlet, an exhaust air-flow inlet and an
exhaust air-flow outlet, wherein the fresh air-flow duct inlets of
the energy recovery device are in fluid communication with the
fresh air-flow inlet of said housing, the fresh air-flow duct
outlets of the energy recovery device are in fluid communication
with the fresh air-flow outlet of said housing, the exhaust
air-flow duct inlets of the energy recovery device are in fluid
communication with the exhaust air-flow inlet of said housing, and
the exhaust air-flow duct outlets of the energy recovery device are
in fluid communication with the exhaust air-flow outlet of said
housing.
13. An energy recovery device, comprising: a first fluid path
extending between a fresh air inlet and a fresh air outlet, and a
second fluid path extending between an exhaust inlet and an exhaust
air outlet; and wherein the first flow path and the second flow
path direct flow in a direction that is substantially parallel to
one another through at least part of the energy recovery
device.
14. The energy recovery device of claim 13, wherein the first flow
path and the second flow path direct flow in a direction that is
substantially perpendicular to one another through at least part of
the energy recovery device.
15. The energy recovery device of claim 13, wherein the first fluid
path defines a plurality of channels lying in a plane.
16. The energy recovery device of claim 13, wherein the first fluid
path defines a plurality of channels lying in two or more parallel
spaced planes.
17. The energy recovery device of claim 13, wherein the first fluid
path defines a plurality of C-shaped or L-shaped channels lying in
a plane.
18. An energy recovery device, comprising: a first fluid path
extending between a fresh air inlet and a fresh air outlet, and a
second fluid path extending between an exhaust inlet and an exhaust
air outlet; and wherein the first flow path and the second flow
path each include a bend in at least part of the energy recovery
device, and wherein the first flow path directs flow in a direction
that is at a first angle relative to fluid flow through the second
flow path for a first portion of the first flow path, and directs
flow in a direction that is at a second angle relative to fluid
flow through the second flow path for a second portion of the first
flow path.
19. The energy recovery device of claim 18, wherein the first fluid
path and the second fluid path each define a plurality of C-shaped
or L-shaped channels.
20. The energy recovery device of claim 18, wherein the first fluid
path defines a plurality of channels lying in a plane.
Description
[0001] This application claims priority to Chinese Patent
Application Number 201110032500.X, which was filed Jan. 30, 2011,
and which is incorporated herein by reference.
TECHNICAL FIELD
[0002] The present invention relates to ventilation equipment, and
in particular, to an energy recovery device for ventilation
equipment.
BACKGROUND
[0003] As people are paying more attention to the air quality,
there is a need for ventilation equipment that provides fresh
air-flow. Such ventilation equipment often employs an energy
recovery device to achieve the complete heat exchange between a
fresh air-flow and an exhaust air-flow, thus fresh air-flow can be
achieved while making use of the energy from the exhaust air-flow,
so that a fresh air-flow of a higher quality can be provided to
users.
[0004] For example, in International Publication No. WO2009090395,
an energy recovery device is disclosed, which includes an exhaust
air-flow inlet, an exhaust air-flow outlet in fluid communication
with the exhaust air-flow inlet via a first duct, a fresh air-flow
inlet, and a fresh air-flow outlet in fluid communication with the
fresh air-flow inlet via a second duct. However, this international
patent application does not disclose the specific construction of
the energy recovery device.
[0005] An energy recovery device in the prior art has a feature
that by means of a "X" configuration or a "S" configuration, the
direction of fresh air-flow and the direction of exhaust air-flow
are crossed. The energy recovery device with such a configuration
increases the height or length of the ventilation equipment, thus
increasing the costs of the ventilation equipment. At the same
time, this energy recovery device in the prior art only provides
slots and projections for sealing at its inlet side/outlet side,
which increases the risk of mixing the fresh air-flow with the
exhaust air-flow, and reduces the quality of fresh air-flow.
Furthermore, the counter-flow energy exchanging portion of the
energy recovery device in the prior art is provided with ducts,
which are parallel to one another and equal in length and in
distance therebetween, so as to form laminar flow and to enable the
pressure drop in each of the ducts to remain balanced without the
need to consider the differences in inlet angles, outlet angles,
pressures and speeds, but this reduces the efficiency of the energy
exchange.
SUMMARY
[0006] An object of the present invention is to provide a novel
energy recovery device with low costs, high efficiency to address
the disadvantages in the prior art.
[0007] In an illustrative embodiment, an energy recovery device is
provided that may include at least two frames which are adjacently
arranged, wherein said at least two frames comprise fresh air-flow
and exhaust air-flow frames, wherein the fresh air-flow frame
comprises fresh air-flow frame rods and a plurality of fresh
air-flow ducts arranged therein, with each fresh air-flow duct has
a fresh air-flow duct inlet, a fresh air-flow duct outlet, and a
bend section of the fresh air-flow duct for connecting them; the
exhaust air-flow frame may include exhaust air-flow frame rods and
a plurality of exhaust air-flow ducts arranged therein, with each
exhaust air-flow duct having an exhaust air-flow inlet, an exhaust
air-flow outlet, and a bend section of the exhaust air-flow duct
for connecting them. The plurality of fresh air-flow ducts and the
plurality of exhaust air-flow ducts may be in a mirror image
arrangement such that the fresh air-flow duct inlets and exhaust
air-flow duct outlets are located generally on the same side, and
the fresh air-flow duct outlets and the exhaust air-flow duct
inlets are located generally on the same side, so that the exhaust
air-flow in the space to be ventilated is discharged into the
atmosphere from the exhaust air-flow duct outlet after entering the
exhaust air-flow duct inlet and passing through the bend section of
the exhaust air-flow duct, and the fresh air-flow from the
atmosphere enters into the space to be ventilated through the bend
section of the fresh air-flow duct after entering the fresh
air-flow duct inlet. The fresh air-flow and the exhaust air-flow
may have energy exchange via the fresh air-flow ducts and the
exhaust air-flow ducts.
[0008] An energy recovery device may be provided, wherein the fresh
air-flow frame and the exhaust air-flow frame are hexagons in
shape; the fresh air-flow frame comprises a first fresh air-flow
frame rod, a second fresh air-flow frame rod, a third fresh
air-flow frame rod, a fourth fresh air-flow frame rod, a fifth
fresh air-flow frame rod and a sixth fresh air-flow frame; and the
exhaust air-flow frame comprises a first exhaust air-flow frame
rod, a second exhaust air-flow frame rod, a third exhaust air-flow
frame rod, a fourth exhaust air-flow frame rod, a fifth exhaust
air-flow frame rod and a sixth exhaust air-flow frame rod; wherein
the fresh air-flow duct inlets of the plurality of fresh air-flow
ducts are provided on the fifth fresh air-flow frame rod of the
fresh air-flow frame, the fresh air-flow duct outlets of the
plurality of fresh air-flow ducts are provided on the first fresh
air-flow frame rod of the fresh air-flow frame, the exhaust
air-flow duct inlets of the plurality of exhaust air-flow ducts are
provided on the second exhaust air-flow frame rod of the exhaust
air-flow frame, and the exhaust air-flow duct outlets of the
plurality of exhaust air-flow ducts are provided on the fourth
exhaust air-flow frame rod of the exhaust air-flow frame, so that
the flowing direction of the fresh air-flow in the fresh air-flow
ducts is opposite to the flowing direction of the exhaust air-flow
in the exhaust air-flow ducts.
[0009] An energy recovery device may be provided, wherein each of
the plurality of fresh air-flow ducts and each of the plurality of
exhaust air-flow ducts are "C-shaped" or "L-shaped".
[0010] An energy recovery device may be provided, wherein each of
the plurality of fresh air-flow ducts has unequal lengths, and they
are spaced from one another unequally.
[0011] An energy recovery device may be provided, wherein each of
the plurality of exhaust air-flow ducts has unequal lengths, and
they are spaced from one another unequally.
[0012] An energy recovery device may be provided, wherein the
plurality of fresh air-flow ducts have different inlets and
outlets, respectively.
[0013] An energy recovery device may be provided, wherein the
plurality of exhaust air-flow ducts have different inlets and
outlets, respectively.
[0014] An energy recovery device may be provided, wherein the
energy recovery device further comprises a medium with heat
transmissibility and moisture permeability, which is arranged
between the at least two frames.
[0015] An energy recovery device may be provided, wherein the
medium with heat transmissibility and moisture permeability
arranged between the at least two frames is a membrane and/or
paper.
[0016] An energy recovery device may be provided, wherein a cover
lid is used for installing said at least two frames.
[0017] An energy recovery device may be provided, wherein the fresh
air-flow frame, the exhaust air-flow frame, the fresh air-flow
ducts and the exhaust air-flow ducts are all made of
acrylonitrile-butadiene-styrene.
[0018] Another illustrative embodiment may include ventilation
equipment, wherein said ventilation equipment includes a housing
and an above-mentioned energy recovery device provided therein,
with said housing includes a fresh air-flow inlet, a fresh air-flow
outlet, an exhaust air-flow inlet and an exhaust air-flow outlet,
and wherein the fresh air-flow duct inlets of the energy recovery
device are in fluid communication with the fresh air-flow inlet of
said housing, the fresh air-flow duct outlets of the energy
recovery device are in fluid communication with the fresh air-flow
outlet of said housing, the exhaust air-flow duct inlets of the
energy recovery device are in fluid communication with the exhaust
air-flow inlet of said housing, and the exhaust air-flow duct
outlets of the energy recovery device are in fluid communication
with the exhaust air-flow outlet of said housing.
[0019] Some embodiments may have one or more of the following
advantages: when the fresh air-flow ducts and exhaust air-flow
ducts employ a "C-shaped" configuration or a "L-shaped"
configuration, the inlets and outlets can be located at the same
side, allowing either side of the ventilation equipment to have a
bypass function, thus increasing the area for total heat exchanging
at every level, and improving a good energy exchange
efficiency.
[0020] Some embodiments may have one or more of the following
advantages: the fresh air-flow ducts and the exhaust air-flow ducts
may include inlets, outlets and "C-shaped" or "L-shaped" bend
sections, wherein the "C-shaped" or "L-shaped" bend sections are
used for counter-flow heat exchanging, thus making it possible for
the six frame rods of the fresh air-flow frame and the exhaust
air-flow frame to be sealed properly without relative movements
therebetween.
[0021] Some embodiments may have one or more of the following
advantages: the fresh air-flow ducts and the exhaust air-flow ducts
may employ parallel bent portions, unequal angles and lengths, and
unequal inlets and outlets, thus enabling the energy exchange to be
realized by way of turbulent flows, so as to increase the
efficiency of energy exchange.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] With reference to the accompanying drawings, the disclosure
of the present invention will become readily understandable. It is
easy for those skilled in the art to understand that these
accompanying drawings are intended only for purpose of
illustration, and are not intended to limit the protective scope of
the present invention, in which:
[0023] FIG. 1 shows a perspective view of the ventilation equipment
with an energy recovery device according to one embodiment of the
present invention;
[0024] FIG. 2 shows a perspective view of an energy recovery device
according to one embodiment of the present invention;
[0025] FIG. 3 shows a view of one of the frames having a plurality
of ducts, for forming the energy recovery device of FIG. 2;
[0026] FIG. 4 shows a view of another frame having a plurality of
ducts, for forming the energy recovery device of FIG. 2; and
[0027] FIG. 5 shows a layout diagram of at least two frames having
a plurality of ducts, for forming the energy recovery device of
FIG. 2.
DESCRIPTION
[0028] The particular embodiments of the present invention are
illustrated in FIGS. 1-5 and the following description to teach
those skilled in the art how to implement and reproduce the best
mode of the present invention. For the sake of teaching the
inventive principles, some conventional aspects are simplified or
omitted. It should be understood by those skilled in the art that
the variants derived from these embodiments will fall into the
protective scope of the present invention. It should be also
understood by those skilled in the art that the features mentioned
below can be combined in various ways to form a plurality of
variants of the present invention. Accordingly, the present
invention is not limited by the specific embodiments described
below, instead it is defined only by the terms of the claims and
the equivalents thereof.
[0029] FIG. 1 shows a perspective view of the ventilation equipment
comprising an energy recovery apparatus in an embodiment according
to the present invention. As shown in FIG. 1, the ventilation
equipment comprises a housing, a fresh air-flow outlet 1, a fresh
air-flow inlet 3, an exhaust air-flow inlet 5, an exhaust air-flow
outlet 7, an energy recovery device 9 arranged in the housing; a
first separation wall 14a, a second separation wall 14b, a third
separation wall 14c, a fourth separation wall 14d and a fifth
separation wall 14e, each of these separation walls is arranged in
the housing. In this case, the housing comprises the first side
wall 13a, the second side wall 13b, the third side wall 13c, and
the fourth side wall 13d, wherein each of these side walls is
arranged next to one another in succession. Among them, the fresh
air-flow outlet 1 and the exhaust air-flow outlet 5 are arranged on
the first side wall 13a, and the fresh air-flow inlet 3 and exhaust
air-flow outlet 7 are arranged on the third side wall 13c. The
energy recovery device 9 comprises at least two frames, in which
one frame is referred to as the fresh air-flow frame 15, and the
other frame is referred to as the exhaust air-flow frame 17. A
medium with good heat conductivity and moisture permeability (not
shown) is disposed between the fresh air-flow frame 15 and the
exhaust air-flow frame 17. FIG. 2 shows a perspective view of an
energy recovery apparatus in an embodiment according to the present
invention. FIG. 3 shows a view of one of the frames with a
plurality of ducts, for forming the energy recovery device in FIG.
2. As shown in FIGS. 2 and 3, the energy recovery device 9
comprises at least one normal hexagonal shaped fresh air-flow frame
15, which comprises a first fresh air-flow frame rod 15a, a second
fresh air-flow frame rod 15b, a third fresh air-flow frame rod 15c,
a fourth fresh air-flow frame rod 15d, a fifth fresh air-flow frame
rod 15e, and a sixth fresh air-flow frame rod 15f. The fresh
air-flow frame 15 also comprises a plurality of "C-shaped" fresh
air-flow ducts 16 which are arranged therein, with each of the
fresh air-flow ducts 16 comprising a fresh air-flow duct inlet 16a
and a fresh air-flow duct outlet 16b. In which a plurality of fresh
air-flow duct inlets 16a are arranged on the fifth fresh air-flow
frame rod 15e, and a plurality of fresh air-flow duct outlets 16b
are arranged on the first fresh air-flow frame rod 15a. FIG. 5
shows a layout diagram of at least two frames with a plurality of
ducts, for forming the energy recovery device in FIG. 2. As shown
in FIG. 5, the energy recovery device 9 further comprises at least
one normal hexagonal shaped exhaust air-flow frame 17, and FIG. 4
shows a view of the other one of the frames with a plurality of
ducts for forming the energy recovery device in FIG. 2. As shown in
FIG. 4, the exhaust air-flow frame 17 comprises the first exhaust
air-flow frame rod 17a, the second exhaust air-flow frame rod 17b,
the third exhaust air-flow frame rod 17c, the fourth exhaust
air-flow frame rod 17d, the fifth exhaust air-flow frame rod 17e,
and the sixth exhaust air-flow frame rod 17f, wherein each of these
exhaust air-flow frame rods is arranged next to one another in
succession. The exhaust air-flow frame 17 also comprises a
plurality of "C-shaped" exhaust air-flow ducts 18 which are
arranged therein, with each of the exhaust air-flow ducts 18
comprising an exhaust air-flow duct inlet 18a and an exhaust
air-flow duct outlet 18b. A plurality of exhaust air-flow duct
inlets 18a are arranged on the second exhaust air-flow frame rod
17b of the exhaust air-flow duct 18, and a plurality of exhaust
air-flow duct outlet 18b are arranged on the fourth exhaust
air-flow frame rod 17d. FIG. 5 shows a layout diagram of the at
least two frames with a plurality of ducts, for forming the energy
recovery device in FIG. 2. It can be seen from FIG. 5 that the
plurality of "C-shaped" exhaust air-flow ducts 18 arranged on the
exhaust air-flow frame 17 and the plurality of "C-shaped" fresh
air-flow ducts 16 arranged on the fresh air-flow frame 15 are in a
mirror image arrangement. As shown in FIG. 1, the third separation
wall 14c, the fourth separation wall 14d, the fifth separation wall
14e, the third side wall 13c, the fourth side wall 13d and the
fresh air-flow inlet side of the energy recovery device 9 form a
fresh air-flow inlet area. The first separation wall 14a, the
fourth separation wall 14d, the first side wall 13a, the fourth
side wall 13d and the fresh air-flow outlet side of the energy
recovery device 9 form a fresh air-flow outlet area, in which an
air blower 11 is arranged in the fresh air-flow outlet area. The
first separation wall 14a, the second separation wall 14b, the
first side wall 13a, the second side wall 13b and the exhaust
air-flow inlet side of the energy recovery device 9 form an exhaust
air-flow inlet area. The second separation wall 14b, the third
separation wall 14c, the second side wall 13b, the third side wall
13c and the fresh air-flow outlet side of the energy recovery
device 9 form an exhaust air-flow outlet area, in which another air
blower 11 is arranged in the exhaust air-flow outlet area.
[0030] When the ventilation equipment shown in FIG. 1 is in
operation, on the one hand, the exhaust air-flow in the ventilation
space enters into the exhaust air-flow inlet area under the effects
of the air blower 11 arranged in the exhaust air-flow outlet area,
then it enters the "C-shaped" exhaust air-flow ducts 18 via the
plurality of exhaust air-flow duct inlets 18a arranged on the
exhaust air-flow inlet side of the energy recovery device 9,
subsequently, it enters from the exhaust air-flow duct outlets 18b
of the "C-shaped" exhaust air-flow ducts 18 into the exhaust
air-flow outlet area, and finally, it is exhausted into the
atmosphere via the exhaust air-flow outlet 7. On the other hand,
the fresh air-flow in the atmosphere is drawn into the fresh
air-flow inlet area under the effects of the air blower 11 arranged
in the fresh air outlet area, then it enters into the "C-shaped"
fresh air-flow ducts 16 via the plurality of fresh air-flow duct
inlets 16a arranged in the fresh air-flow inlet side of the energy
recovery device 9, subsequently, it enters from the fresh air-flow
duct outlets 16b of the "C-shaped" fresh air-flow ducts 16 into the
fresh air-flow inlet area, and finally it enters into the space to
be ventilated via the fresh air-flow outlet 1. Since the fresh
air-flow ducts 16 and the exhaust air-flow ducts 18 are arranged
next to one another in the energy recovery device 9 in a mirror
image arrangement, this allows the fresh air-flow which has passed
through the "C-shaped" fresh air-flow ducts 16 and the exhaust
air-flow which has passed through the "C-shaped" exhaust air-flow
ducts 18, to have heat exchange in the energy recovery device 9 via
a medium with heat conductivity and moisture permeability
characteristics arranged between the fresh air-flow frame 15 and
the exhaust air-flow frame 17, --so as to enable the fresh air-flow
which has had heat exchange with the exhaust air-flow to be pumped
into the space to be ventilated.
[0031] In an embodiment of the present invention, the fresh
air-flow frame 15, the exhaust air-flow frame 17, the plurality of
fresh air-flow ducts 16 and the plurality of exhaust air-flow ducts
18 are preferably made of acrylonitrile-butadiene-styrene. It needs
to be mentioned that the fresh air-flow frame 15, the exhaust
air-flow frame 17, the plurality of fresh air-flow ducts 16 and the
plurality of exhaust air-flow ducts 18 can also be made of other
materials, and this would still fall into the scope of the present
invention.
[0032] In an embodiment of the present invention, the medium with
good heat conductivity and moisture permeability characteristics
arranged between the fresh air-flow frame 15 and the exhaust
air-flow frame 17 is a membrane or a piece of special paper. For
those skilled in the art, the membrane and the special paper are
the membrane and paper commonly used in the art, therefore they do
not need to be described redundantly herein.
[0033] In one embodiment of the present invention, the fresh
air-flow duct 16 and the exhaust air-flow duct 18 can also adopt an
L-shaped configuration. As can be seen in FIGS. 3 and 4, the
plurality of fresh air-flow ducts 16 and exhaust air-flow ducts 18
respectively have bend sections, different inlets and outlets,
different lengths and different spacing. The "C-shaped" or
"L-shaped" configuration is applied in the fresh air-flow ducts 16
and exhaust air-flow ducts 18 in the ventilation equipment
according to the present invention, which can allow the inlets and
outlets to be placed on the same side, enabling any side of the
ventilation equipment to have a bypass function, thus increasing
the total heat exchange area per layer, and improving the energy
exchange efficiency.
[0034] In an embodiment of the present invention, the fresh
air-flow ducts 16 and the exhaust air-flow ducts 18 comprise
inlets, outlets, and "C-shaped" or "L-shaped" bend sections, in
which the "C-shaped" or "L-shaped" bend sections are used for
counter-flow heat exchanging, and this allows all of the six frame
rods of the fresh air-flow frame 15 and the exhaust air-flow frame
17 to be sealed properly without any movement relative to one
another.
[0035] In an embodiment of the present invention, the parallel bend
sections (such as "C-shaped" or "L-shaped" bend sections), unequal
angles and lengths, and unequal inlets and outlets are adopted in
the fresh air-flow ducts 16 and the exhaust air-flow ducts 18,
enabling the energy exchange to be performed by turbulent flows,
thus improving the energy exchange efficiency.
TABLE-US-00001 List of names of the components and reference
numerals thereof 1 fresh air-flow outlet 3 fresh air-flow inlet 5
exhaust air-flow inlet 7 exhaust air-flow outlet 9 energy recovery
device 11 air blower 13a first side wall 13b second side wall 13c
third side wall 13d fourth side wall 14a first separation wall 14b
second separation wall 14c third separation wall 14d fourth
separation wall 14e fifth separation wall 15 fresh air-flow frame
15a first fresh air-flow frame rod 15b second fresh air-flow frame
rod 15c third fresh air-flow frame rod 15d fourth fresh air-flow
frame rod 15e fifth fresh air-flow frame rod 15f sixth fresh
air-flow frame rod 16 fresh air-flow duct 16a fresh air-flow duct
inlet 16b fresh air-flow duct outlet 17 exhaust air-flow frame 17a
first exhaust air-flow frame rod 17b second exhaust air-flow frame
rod 17c third exhaust air-flow frame rod 17d fourth exhaust
air-flow frame rod 17e fifth exhaust air-flow frame rod 17f sixth
exhaust air-flow frame rod 18 exhaust air-flow duct 18a exhaust
air-flow duct inlet 18b exhaust air-flow duct outlet
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