US20120196523A1 - High efficiency energy recovery core for ventilation - Google Patents
High efficiency energy recovery core for ventilation Download PDFInfo
- Publication number
- US20120196523A1 US20120196523A1 US13/357,392 US201213357392A US2012196523A1 US 20120196523 A1 US20120196523 A1 US 20120196523A1 US 201213357392 A US201213357392 A US 201213357392A US 2012196523 A1 US2012196523 A1 US 2012196523A1
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- US
- United States
- Prior art keywords
- flow
- fresh air
- exhaust air
- air
- energy recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Definitions
- the present invention relates to ventilation equipment, and in particular, to an energy recovery device for ventilation equipment.
- 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.
- an energy recovery device 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.
- this international patent application does not disclose the specific construction of the energy recovery device.
- 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.
- 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.
- 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.
- 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.
- an energy recovery device 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.
- 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
- 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”.
- 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.
- 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.
- An energy recovery device may be provided, wherein the plurality of fresh air-flow ducts have different inlets and outlets, respectively.
- An energy recovery device may be provided, wherein the plurality of exhaust air-flow ducts have different inlets and outlets, respectively.
- 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.
- 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.
- An energy recovery device may be provided, wherein a cover lid is used for installing said at least two frames.
- 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.
- FIG. 1 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.
- 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.
- 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.
- 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.
- FIG. 1 shows a perspective view of the ventilation equipment with an energy recovery device according to one embodiment of the present invention
- FIG. 2 shows a perspective view of an energy recovery device according to one embodiment of the present invention
- FIG. 3 shows a view of one of the frames having a plurality of ducts, for forming the energy recovery device of FIG. 2 ;
- FIG. 4 shows a view of another frame having a plurality of ducts, for forming the energy recovery device of FIG. 2 ;
- 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 .
- FIGS. 1-5 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.
- FIG. 1 shows a perspective view of the ventilation equipment comprising an energy recovery apparatus in an embodiment according to the present invention.
- 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 14 a , a second separation wall 14 b , a third separation wall 14 c , a fourth separation wall 14 d and a fifth separation wall 14 e , each of these separation walls is arranged in the housing.
- the housing comprises the first side wall 13 a , the second side wall 13 b , the third side wall 13 c , and the fourth side wall 13 d , wherein each of these side walls is arranged next to one another in succession.
- the fresh air-flow outlet 1 and the exhaust air-flow outlet 5 are arranged on the first side wall 13 a
- the fresh air-flow inlet 3 and exhaust air-flow outlet 7 are arranged on the third side wall 13 c .
- 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 .
- 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.
- 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 15 a , a second fresh air-flow frame rod 15 b , a third fresh air-flow frame rod 15 c , a fourth fresh air-flow frame rod 15 d , a fifth fresh air-flow frame rod 15 e , and a sixth fresh air-flow frame rod 15 f .
- 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 16 a and a fresh air-flow duct outlet 16 b .
- 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 .
- the energy recovery device 9 further comprises at least one normal hexagonal shaped exhaust air-flow frame 17
- 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 .
- 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 .
- the energy recovery device 9 further comprises at least one normal hexagonal shaped exhaust air-flow frame 17
- 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 .
- the exhaust air-flow frame 17 comprises the first exhaust air-flow frame rod 17 a , the second exhaust air-flow frame rod 17 b , the third exhaust air-flow frame rod 17 c , the fourth exhaust air-flow frame rod 17 d , the fifth exhaust air-flow frame rod 17 e , and the sixth exhaust air-flow frame rod 17 f , 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 18 a and an exhaust air-flow duct outlet 18 b .
- 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.
- the third separation wall 14 c , the fourth separation wall 14 d , the fifth separation wall 14 e , the third side wall 13 c , the fourth side wall 13 d and the fresh air-flow inlet side of the energy recovery device 9 form a fresh air-flow inlet area.
- the first separation wall 14 a , the fourth separation wall 14 d , the first side wall 13 a , the fourth side wall 13 d 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 14 a , the second separation wall 14 b , the first side wall 13 a , the second side wall 13 b and the exhaust air-flow inlet side of the energy recovery device 9 form an exhaust air-flow inlet area.
- the second separation wall 14 b , the third separation wall 14 c , the second side wall 13 b , the third side wall 13 c 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.
- 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 18 a arranged on the exhaust air-flow inlet side of the energy recovery device 9 , subsequently, it enters from the exhaust air-flow duct outlets 18 b 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 .
- 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 16 a arranged in the fresh air-flow inlet side of the energy recovery device 9 , subsequently, it enters from the fresh air-flow duct outlets 16 b 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 .
- 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.
- 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.
- 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.
- 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.
- the fresh air-flow duct 16 and the exhaust air-flow duct 18 can also adopt an L-shaped configuration.
- 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.
- 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.
- 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.
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.
Description
- This application claims priority to Chinese Patent Application Number 201110032500.X, which was filed Jan. 30, 2011, and which is incorporated herein by reference.
- The present invention relates to ventilation equipment, and in particular, to an energy recovery device for ventilation equipment.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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”.
- 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.
- 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.
- An energy recovery device may be provided, wherein the plurality of fresh air-flow ducts have different inlets and outlets, respectively.
- An energy recovery device may be provided, wherein the plurality of exhaust air-flow ducts have different inlets and outlets, respectively.
- 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.
- 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.
- An energy recovery device may be provided, wherein a cover lid is used for installing said at least two frames.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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:
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FIG. 1 shows a perspective view of the ventilation equipment with an energy recovery device according to one embodiment of the present invention; -
FIG. 2 shows a perspective view of an energy recovery device according to one embodiment of the present invention; -
FIG. 3 shows a view of one of the frames having a plurality of ducts, for forming the energy recovery device ofFIG. 2 ; -
FIG. 4 shows a view of another frame having a plurality of ducts, for forming the energy recovery device ofFIG. 2 ; and -
FIG. 5 shows a layout diagram of at least two frames having a plurality of ducts, for forming the energy recovery device ofFIG. 2 . - 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. -
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 inFIG. 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, anenergy recovery device 9 arranged in the housing; afirst separation wall 14 a, asecond separation wall 14 b, athird separation wall 14 c, a fourth separation wall 14 d and afifth separation wall 14 e, each of these separation walls is arranged in the housing. In this case, the housing comprises the first side wall 13 a, the second side wall 13 b, thethird side wall 13 c, and the fourth side wall 13 d, 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 13 a, and the fresh air-flow inlet 3 and exhaust air-flow outlet 7 are arranged on thethird side wall 13 c. Theenergy 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 inFIG. 2 . As shown inFIGS. 2 and 3 , theenergy recovery device 9 comprises at least one normal hexagonal shaped fresh air-flow frame 15, which comprises a first fresh air-flow frame rod 15 a, a second fresh air-flow frame rod 15 b, a third fresh air-flow frame rod 15 c, a fourth fresh air-flow frame rod 15 d, a fifth fresh air-flow frame rod 15 e, and a sixth fresh air-flow frame rod 15 f. 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 16 a and a fresh air-flow duct outlet 16 b. In which a plurality of fresh air-flow duct inlets 16 a are arranged on the fifth fresh air-flow frame rod 15 e, and a plurality of fresh air-flow duct outlets 16 b are arranged on the first fresh air-flow frame rod 15 a.FIG. 5 shows a layout diagram of at least two frames with a plurality of ducts, for forming the energy recovery device inFIG. 2 . As shown inFIG. 5 , theenergy recovery device 9 further comprises at least one normal hexagonal shaped exhaust air-flow frame 17, andFIG. 4 shows a view of the other one of the frames with a plurality of ducts for forming the energy recovery device inFIG. 2 . As shown inFIG. 4 , the exhaust air-flow frame 17 comprises the first exhaust air-flow frame rod 17 a, the second exhaust air-flow frame rod 17 b, the third exhaust air-flow frame rod 17 c, the fourth exhaust air-flow frame rod 17 d, the fifth exhaust air-flow frame rod 17 e, and the sixth exhaust air-flow frame rod 17 f, 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 18 a and an exhaust air-flow duct outlet 18 b. A plurality of exhaust air-flow duct inlets 18 a are arranged on the second exhaust air-flow frame rod 17 b of the exhaust air-flow duct 18, and a plurality of exhaust air-flow duct outlet 18 b are arranged on the fourth exhaust air-flow frame rod 17 d.FIG. 5 shows a layout diagram of the at least two frames with a plurality of ducts, for forming the energy recovery device inFIG. 2 . It can be seen fromFIG. 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 inFIG. 1 , thethird separation wall 14 c, the fourth separation wall 14 d, thefifth separation wall 14 e, thethird side wall 13 c, the fourth side wall 13 d and the fresh air-flow inlet side of theenergy recovery device 9 form a fresh air-flow inlet area. Thefirst separation wall 14 a, the fourth separation wall 14 d, the first side wall 13 a, the fourth side wall 13 d and the fresh air-flow outlet side of theenergy 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. Thefirst separation wall 14 a, thesecond separation wall 14 b, the first side wall 13 a, the second side wall 13 b and the exhaust air-flow inlet side of theenergy recovery device 9 form an exhaust air-flow inlet area. Thesecond separation wall 14 b, thethird separation wall 14 c, the second side wall 13 b, thethird side wall 13 c and the fresh air-flow outlet side of theenergy 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. - 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 18 a arranged on the exhaust air-flow inlet side of theenergy recovery device 9, subsequently, it enters from the exhaust air-flow duct outlets 18 b 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 16 a arranged in the fresh air-flow inlet side of theenergy recovery device 9, subsequently, it enters from the fresh air-flow duct outlets 16 b 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 theenergy 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 theenergy 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. - 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.
- 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.
- 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. - 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.
- 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.
-
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
Claims (20)
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201110032500.X | 2011-01-30 | ||
CN201110032500XA CN102183077A (en) | 2011-01-30 | 2011-01-30 | Energy recovery device |
Publications (1)
Publication Number | Publication Date |
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US20120196523A1 true US20120196523A1 (en) | 2012-08-02 |
Family
ID=44569328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/357,392 Abandoned US20120196523A1 (en) | 2011-01-30 | 2012-01-24 | High efficiency energy recovery core for ventilation |
Country Status (3)
Country | Link |
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US (1) | US20120196523A1 (en) |
KR (1) | KR20120088490A (en) |
CN (1) | CN102183077A (en) |
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US20150276256A1 (en) * | 2014-03-31 | 2015-10-01 | Venmar Ces, Inc. | Systems and methods for forming spacer levels of a counter flow energy exchange assembly |
CN105856833A (en) * | 2016-05-31 | 2016-08-17 | 江阴市汇通包装机械有限公司 | Double-inlet double-outlet air supply device |
US20170184353A1 (en) * | 2015-12-29 | 2017-06-29 | Delta Electronics, Inc. | Heat exchange device |
CN108078202A (en) * | 2017-12-15 | 2018-05-29 | 上海美滴智能科技有限公司 | Wardrobe and composite furniture |
CN108443995A (en) * | 2018-01-29 | 2018-08-24 | 中国科学院广州能源研究所 | A kind of efficient heat-recycling fresh air regenerating device of three-dimensional structure changes |
US10775071B2 (en) | 2013-01-04 | 2020-09-15 | Carrier Corporation | Energy recovery ventilator |
US20210148598A1 (en) * | 2019-11-17 | 2021-05-20 | Stephen G. Ehrman | Integrated Energy Recovery Base or Roof-curb for Air-conditioning Unit |
GB2604380A (en) * | 2021-03-04 | 2022-09-07 | Energy Recovery Ind Corporation Ltd | An air to air counter flow heat exchanger |
WO2023127788A1 (en) * | 2021-12-27 | 2023-07-06 | ダイキン工業株式会社 | Heat exchanger, ventilator, and method for manufacturing heat exchanger |
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FR3086742B1 (en) * | 2018-10-01 | 2020-10-30 | Heurtey Petrochem S A | PLATE FOR A PLATE HEAT EXCHANGER |
CN109974259B (en) * | 2019-04-14 | 2024-02-09 | 宁波东大空调设备有限公司 | Hydrophilic film reverse flow air duct air heat and humidity recovery machine core |
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US10132522B2 (en) * | 2014-03-31 | 2018-11-20 | Nortek Air Solutions Canada, Inc. | Systems and methods for forming spacer levels of a counter flow energy exchange assembly |
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US20210148598A1 (en) * | 2019-11-17 | 2021-05-20 | Stephen G. Ehrman | Integrated Energy Recovery Base or Roof-curb for Air-conditioning Unit |
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Also Published As
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CN102183077A (en) | 2011-09-14 |
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