WO2022186302A1 - 熱交換器及び空気処理装置 - Google Patents
熱交換器及び空気処理装置 Download PDFInfo
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- WO2022186302A1 WO2022186302A1 PCT/JP2022/008974 JP2022008974W WO2022186302A1 WO 2022186302 A1 WO2022186302 A1 WO 2022186302A1 JP 2022008974 W JP2022008974 W JP 2022008974W WO 2022186302 A1 WO2022186302 A1 WO 2022186302A1
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- Prior art keywords
- port
- airflow
- core
- heat exchanger
- fin
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Images
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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/032—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers
- F24F1/0325—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
- F28F21/066—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits for domestic or space-heating systems
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
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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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
-
- 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 the technical field of air treatment and conditioning, and more particularly to the use of heat exchangers in air treatment equipment.
- a conventional air treatment system typically includes a heat exchanger configured to allow room exhaust air and fresh air to flow through the heat exchanger in a manner that intersects each of the two paths. When the air currents cross and flow, they exhibit heat transfer phenomena, causing a total heat exchange process.
- a typical heat exchanger uses a core with a hexagonal structure in which core fins and membranes are alternately laminated, and is provided with two sets of ports, one of which normally exhausts the room air. The other set of ports is used for fresh air flow, and the two-way airflow facilitates heat exchange across the membrane in the heat exchanger.
- Each core fin is integrally molded with a resin material, and a paper film or a plastic film can be used for the film.
- a paper film or a plastic film can be used for the film.
- the inventors also found that due to the action of airflow, the membrane in the conventional heat exchanger is deformed concavely or convexly between two adjacent partition ribs, further increasing the airflow resistance and increasing the heat exchange efficiency of the heat exchanger. and that deformation of the membrane over a long period of time leads to membrane failure, which in turn affects the life of the heat exchanger.
- the present invention includes multiple core fins and multiple membranes, the multiple membranes are respectively attached to one side of one core fin, and the core fins and membranes are alternately laminated. and the plurality of core fins includes a first core fin and a second core fin, and the first core fin and the second core fin are laminated to form an airflow passage therebetween. has two port portions arranged oppositely, one of which is the inlet portion and the other is the outlet portion, and the airflow is directed from the inlet portion along the airflow direction.
- a flow to outlet heat exchanger wherein said first core fin and said second core fin provide a heat exchanger each having port sides that are stacked to form said port portion.
- At least one of the outermost fin-layer distances of the port portion is larger than the fin-layer distances of other positions between the inlet portion and the outlet portion of the airflow passage. and/or a port partitioning rib is provided on the port side of the second core fin, and the port side of the first core fin has a surface that abuts on the port partitioning rib.
- the width is smaller than the width of the main partition rib extending between the port side portion of the port portion which is the inlet portion and the port side portion of the port portion which is the outlet portion.
- the above technical proposal can increase the area of the port, reduce the pressure loss, and reduce the pressure loss. It helps to improve the air volume flowing through the section, and further helps to improve the heat exchange effect of the heat exchanger.
- the first core fin and the second core fin each have a port side portion that is laminated to form a port portion, and the port side portion of the first core fin has a cross section parallel to the airflow direction. , it tapers toward the outermost side.
- the airflow ports flare out toward the outermost sides to reduce resistance as the airflow enters or exits the heat exchanger, and the airflow
- the flow velocity inside the heat exchanger increases, thereby improving the heat exchange efficiency of the heat exchanger.
- a plurality of port partition ribs are provided on the surface of the port side portion of the second core fin facing the first core fin.
- the plurality of port part partition ribs can cooperate with the tapered port side part of the first core fin to avoid cross-flow of airflows of adjacent flow paths, and the airflow distribution inside the heat exchanger. can be made uniform, and the port side portion can be supported using the port portion partitioning ribs, which helps to improve the strength of the core fins.
- the surface of the port side portion of the first core fin facing the airflow passage includes any one of an inclined surface, a curved surface, and a stepped surface, which increases the port area and at the same time increases the heat exchanger. Airflow entering or exiting the heat exchanger can be guided to reduce airflow obstruction.
- the outermost fin interlayer distance at the inlet of the airflow passage is greater than the fin interlayer distance perpendicular to the airflow direction at other locations between the inlet and outlet of the airflow passage. .
- the height of the inlet section is the greatest throughout the airflow passage.
- the port portion includes a first end and a second end along the extending direction of the port side portion, and the first end of the plurality of port portion partitioning ribs of the second core fin is shorter than the length of the other port partition ribs.
- the heat exchanger further comprises a shell housing the plurality of core fins and the plurality of membranes, the airflow passageway comprising intersecting first and second flowpaths, the first flowpath and The second flow paths each have an inlet section and an outlet section, the inlet section of the first flow path being adjacent to the outlet section of the second flow path, while the inlet section of the second flow path is adjacent to the outlet of the first flow path.
- the shell is provided with baffles adjacent to the inlet and outlet, and the baffles are folded back to form filter guide rails, the length of the port partition ribs at positions corresponding to the guide rails. is smaller than the length of the remaining port partition ribs.
- the baffle is used as part of the shell to fix the stacked core fins, which improves the strength of the heat exchanger. Easy to put on and take off the filter.
- the flow rate of the airflow at the end of the port section is smaller than that of the intermediate member of the port section due to the mounting structure or arrangement position of the heat exchanger. Therefore, by making the length of the partition rib at least one end shorter than that of the other partition ribs, it is possible to avoid obstruction of the airflow by the baffle or the like, and to improve the intake air volume and the air supply volume of the port at the end. In addition, as a result of being able to make the air flow taken in and discharged from the port more uniform, it helps to improve the heat exchange efficiency of the heat exchanger.
- the end portion of the partition rib is provided with a guide portion having a shape that guides the airflow along the traveling direction of the airflow.
- the plurality of port partition ribs of the second core fin comprises alternating relatively short first port partition ribs and relatively long second port partition ribs
- the port portion includes a first end and a second end along the extending direction of the port side portion, and the port portion partitioning rib closest to the first end is the first port portion partitioning rib, and the area of the port portion is can be further increased, which is useful for increasing the inspiratory volume and air supply volume.
- the first core fin includes a first frame
- the second core fin includes a second frame
- each of the first and second frames each comprising a hexagonal outer frame and a basic a main partition rib extending from the inlet portion to the outlet portion along the airflow direction of the airflow passage, and two longitudinal ribs extending across the airflow direction in the airflow passage, the outer frame being divided into two triangles.
- two longitudinal ribs separating the area and a square area located between the two triangular areas, further comprising a minor partition rib essentially parallel to the main partition rib within the square area.
- the distances between the secondary partition ribs and the adjacent main partition ribs on both sides are equal. This makes the airflow in the airflow passage more uniform, improves the strength of the heat exchanger, and helps improve the heat exchange efficiency.
- the height of the sub-partition ribs in the stacking direction is equal to or less than the height of the main partition ribs.
- the side of the main partition rib extending between the port side of the inlet port and the port side of the outlet port to which the membrane is attached. is smaller than the width on the side remote from the membrane. If the partition ribs are wider on the side closer to the membrane, the degree of adhesion between the partition ribs and the membrane is better. This helps to increase the sealing performance of the heat exchanger, reduce the risk of airflow leakage, and minimize the occupation of the airflow path by the sub-partition ribs.
- the main partition rib extending between the port side of the inlet port section and the port side of the outlet port section from the attached membrane.
- the far side is provided with openings for the airflow to pass through.
- the first core fin has a first frame
- the second core fin has a second frame
- the first frame and the second frame having the same profile laminated together.
- the port-side portion of the first core fin and the port-side portion of the second core fin are provided along the first portion and the second portion, which are arranged diagonally on each of the first frame and the second frame, respectively.
- the first and second frames further include diagonally disposed third and fourth portions, respectively, with cross-port sides formed along the third and fourth portions;
- the cross port side edge of the second frame has a plurality of partition ribs on the surface opposite to the second core fin, and the cross port side edge of the second frame extends toward the outermost side in a cross section parallel to the airflow direction.
- the width of the port part partitioning rib of the cross port side part of the first frame, which is tapered, is equal to the port side part of the port part which is the inlet part and the port part of the port part which is the outlet part. smaller than the width of the main partition ribs extending between the
- the cross port side part of the second frame includes any one of a sloped surface, a curved surface and a stepped surface, and the contour shape and the partition ribs of the port side part of the second core fin are the two parts of the second frame. It is formed on two sides respectively, has a simple structure, and facilitates stacking the first core fins and the second core fins on each other, thereby contributing to the processing efficiency of the heat exchanger.
- the present invention includes a plurality of core fins and a plurality of membranes, the plurality of membranes being attached to one side surface of one core fin, and the core fins and membranes being alternately laminated to form an air flow passage.
- the plurality of core fins includes a first core fin and a second core fin, the first core fin and the second core fin are laminated to form the airflow passage therebetween, the airflow passage comprising: Two port portions are arranged oppositely, one of the port portions is an inlet portion and the other is an outlet portion, and airflow is directed from the inlet portion along an airflow direction.
- the heat exchanger flowing to the outlet section wherein the first core fin and the second core fin each have a main partition rib extending between two opposing port sections, the first core fin and the second Each of the two core fins has a port side side portion that is laminated to form the port portion, a port portion partitioning rib is provided on the port side portion of the first core fin or the second core fin, and the port portion partitioning rib is less than the width of the main partition rib to further provide a heat exchanger that increases the flow rate of airflow entering the port.
- the present invention also provides an air treatment apparatus comprising a fresh air inlet, an air supply inlet, a return air outlet and an air outlet, further comprising the heat exchanger according to the above scheme, wherein the heat exchanger port
- the section includes a first inlet section and a first outlet section and a second inlet section and a second outlet section.
- the fresh air port communicates with the first inlet to introduce a fresh airflow
- the air supply port communicates with the first outlet to send out the fresh airflow
- the return air port communicates with the second inlet.
- the exhaust port communicates with the second outlet to send out the indoor airflow, and the fresh airflow and the indoor airflow cross each other and flow through the heat exchanger to exchange heat.
- An air treatment device is further provided.
- a heat exchanger is one of the core components of an air treatment device, and when using the heat exchanger according to the present invention, the overall processing efficiency of the air treatment device is improved.
- the airflow port flares toward the outermost side or the partition ribs of the port are narrowed to reduce the resistance when the airflow enters the heat exchanger.
- the air flow into or out of the heat exchanger is improved, and the flow velocity inside the heat exchanger is improved, thereby improving the heat exchange efficiency of the heat exchanger.
- the membrane in the heat exchanger can be reliably protected and supported, and by preventing the membrane from being deformed by the action of the air flow, the deformation of the membrane will result in heat exchange. It avoids impeding the flow of air flow inside the vessel, avoids membrane damage due to long-term deformation of the membrane, and helps extend the service life of the heat exchanger.
- FIG. 1 shows a perspective view of a heat exchanger according to a preferred embodiment of the present invention
- FIG. Fig. 3 shows a partial perspective view of paired core fins in a heat exchanger according to a preferred embodiment of the present invention
- Fig. 4 shows a front view of the first core fin in the heat exchanger according to the preferred embodiment of the present invention
- Fig. 4 shows a front view of a second core fin in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4B shows a partial perspective view of the port side portion of the first core fin in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4C is a partial perspective view of the port side portion of the second core fin in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4 shows a partial plan view of a core fin attached to a guide rail, according to a preferred embodiment of the present invention
- Fig. 4 shows a partial perspective view of a second core fin in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4C shows another partial perspective view of the second core fin in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4 shows a partial perspective view of core fins in the heat exchanger according to the preferred embodiment of the present invention
- FIG. 4 shows a partial plan view of core fins in a heat exchanger according to a preferred embodiment of the present invention
- Fig. 3 shows a schematic diagram of a configuration of partition ribs suitable for core fins of a heat exchanger according to a preferred embodiment of the present invention
- FIG. 3 shows a schematic diagram of a configuration of partition ribs suitable for core fins of a heat exchanger according to a preferred embodiment of the present invention
- Fig. 3 shows a schematic diagram of a configuration of partition ribs suitable for core fins of a heat exchanger according to a preferred embodiment of the present invention
- 4A and 4B show schematic diagrams of combination patterns of core fins applied to a heat exchanger according to a preferred embodiment of the present invention
- 4A and 4B show schematic diagrams of combination patterns of core fins applied to a heat exchanger according to a preferred embodiment of the present invention
- FIG. 4 shows a schematic cross-sectional view parallel to the airflow direction of the port portion of the airflow passage according to the preferred embodiment of the present invention
- FIG. 4 shows a schematic plan view of core fins in a heat exchanger according to another preferred embodiment of the present invention
- 4A and 4B respectively show perspective views of core fins in the heat exchanger according to the preferred embodiment of the present invention
- 4A and 4B respectively show perspective views of core fins in the heat exchanger according to the preferred embodiment of the present invention
- Fig. 4 shows an enlarged schematic view of a pin hole of a core fin according to a preferred embodiment of the present invention
- FIG. 4 shows a perspective view without membranes after a plurality of first core fins and second core fins are stacked together according to a preferred embodiment of the present invention
- 1 shows a schematic plan view of an air treatment device to which a heat exchanger according to a preferred embodiment of the present invention is applied
- two heat exchangers 1 are attached to the central part of the air treatment device 100 .
- One or more heat exchangers 1 may be provided according to the size of the air treatment device.
- an air treatment device with one heat exchanger 1 installed in the machine is easy to attach and detach the heat exchanger 1, so a maintenance port can be provided on the side of the equipment case, and a plurality of heat exchangers can be installed in the machine.
- the air treatment device provided with the heat exchanger 1 can also be provided with a maintenance port on the side of the device case for attaching and detaching the heat exchanger 1, and a maintenance port is provided on the bottom plate of the device so that the heat exchanger can be installed from below. 1 can be removed.
- the air treatment device 100 provided with a plurality of heat exchangers 1 by connecting adjacent heat exchangers 1 with a sealing material, airflow leakage in the device can be reduced.
- FIG. 1 shows a perspective view of a heat exchanger 1 according to a preferred embodiment of the invention applicable to an air treatment device 100.
- the heat exchanger 1 is constructed by stacking a plurality of core fins and a plurality of membranes, each core fin and each membrane have the same shape, and the heat exchanger 1 is formed by laminating the core fins and membranes. , forming the shape of a hexagonal prism as shown in FIGS.
- a membrane is interposed between two adjacent core fins so that the space between the two membranes constitutes an airflow passage through which airflow can pass.
- the shape of the core fins and membranes can also be rectangular, square or diamond.
- the heat exchanger 1 is a heat exchanger 1 with intersecting airflow passages, i.e. the heat exchanger 1 has two sets of inlets and airflow passages so as to form two different airflow passages. It has an outlet.
- the hexagonal prism-shaped heat exchanger 1 shown in FIG. 1 has two long sides and four short sides, where two pairs of short opposing sides are provided with inlets and outlets, respectively. By being separated from each other, two different airflow paths are formed. One airflow path extends from the upper left corner of heat exchanger 1 shown in FIG. 1 to the lower right corner of heat exchanger 1, and the other airflow path extends from the lower left corner of heat exchanger 1 shown in FIG. to the upper right corner of the heat exchanger 1 .
- the core fins of the heat exchanger 1 forming intersecting airflow passages include first core fins 10 and second core fins 20 that are adjacently arranged.
- a layer of membrane 30 is interposed between the two core fins 10, 20, as can be clearly seen from FIG.
- Both the first core fin 10 and the second core fin 20 have a hexagonal perimeter profile, and as shown in FIGS. and has two long sides 105 , 106 and 205 , 206 and four short sides 101 , 102 , 103 , 104 and 201 , 202 , 203 , 204 . 3 and 4, the four short sides of the first core fin 10 are a first short side 101, a second short side 102, and a third short side 103. and fourth short side 104, the four short sides of the second core fin 20 being first short side 201, second short side 202, third short side 203 and fourth short side 204. is shown as One of the two opposite sides of each of the first core fin and the second core fin constitutes the surface to which membrane 30 is applied.
- the four short sides 101, 102, 103, 104 and 201, 202, 203, 204 face each other, thereby forming two sets of can be formed.
- the first short sides 101 , 201 and the second short sides 102 , 202 of the two core fins 10 , 20 form the first set of port portions 50 and the second short sides of the two core fins 10 , 20 .
- the third short side 103 , 203 and the fourth short side 104 , 204 form the second set of port portions 50 .
- Each set of port sections 50 has an inlet section and an outlet section.
- the first route airflow passage communicates from the first short sides 101, 201 to the second short sides 102, 202
- the second route airflow passage is:
- the third short sides 103 and 203 are communicated with the fourth short sides 104 and 204 .
- the airflow passage of the first route may be an airflow passage for guiding the fresh airflow
- the second airflow passage may be an airflow passage for guiding the indoor airflow.
- a fresh air fan provided in the air treatment device 100 guides the fresh air flow along the first airflow passage from the fresh air port 110 of the air treatment device to the air supply port 120 through the heat exchanger 1
- An exhaust fan provided in the air treatment device 100 guides the indoor airflow along the second airflow passage from the return air port 130 of the air treatment device 100 to the exhaust port 140 through the heat exchanger 1 .
- the fresh airflow and the exhaust airflow flow through the heat exchanger 1 between the core fins 10 and 20 along mutually intersecting paths, thereby exchanging heat between the fresh airflow and the room airflow in the heat exchanger 1 .
- Each short side of the first core fin 10 and the second core fin 20 has a port-side side portion 51 or a corresponding port-side side portion 52, and when the first core fin 10 and the second core fin 20 are stacked, Corresponding port sides 51 and 52 can together form a port portion 50 used as an airflow passageway, and a pair of fins 21 between every two adjacent first and second core fins 21 .
- the port portion 50 can be formed by arranging only the port side portions 51 and 52 on the opposing short sides to face each other, and the port side portions on the other opposing short sides are arranged back-to-back. Since it is provided, the port portion 50 is not formed, and the sealing portion is formed by sealing and bonding.
- FIG. 2 shows one port section 50 formed by stacking two core fins 10 and 20 facing each other.
- the port portion 50 may be an airflow inlet or an airflow outlet.
- the port portion 50 according to the present invention is at least the outermost portion of the port portion 50 in the stacking direction of the first core fin 10 and the second core fin 20 (that is, the thickness direction of the first core fin 10 and the second core fin 20).
- the distance between the fins is greater than the distance between the fins at other positions in the airflow passage between the two port portions 50 used in pairs.
- the fin interlayer distance between the first core fin 10 and the second core fin 20 means that the airflow can flow between the two core fins 10 and 20 in the stacking direction of both the first core fin 10 and the second core fin 20.
- the portion with the largest height dimension of the cross section is located on the outermost side of the port portion 50 .
- the port portion 50 widening toward the outermost side can minimize the resistance of the airflow entering the heat exchanger 1 and improve the flow rate of the airflow entering the airflow passage. Thereby, the operating efficiency of the heat exchanger 1 is improved.
- FIG. 14 shows a schematic cross-sectional view of the port portion 50 formed by the paired port side portions 51 and 52 of the first core fin 10 and the second core fin 20, the cross-section being in the airflow direction of the airflow passage. cut essentially parallel to the As can be seen from FIG. 14, the sloping surface 510 of the port side of the first core fin 10 and the parallel surface 520 of the port side of the second core fin 20 surround and form the port section 50, the port section 50: It has a maximum height dimension h on the outermost side, which is preferably, for example, 2 mm to 4 mm, more preferably 3 mm. The dimensions are 1-2 mm, preferably 1.5 mm. In this way, the airflow in the airflow passage can perform overall heat exchange with the airflow passages on both sides of the airflow passage due to the membranes on both sides of the airflow passage, and the performance of the heat exchanger is high.
- the first core fin 10 has a port side portion 51 forming the port portion 50, and the port side portion 51 tapers toward the outermost side in a cross section parallel to the airflow direction. becomes. That is, the two surfaces of the port side portion 51 of the first core fin 10 are not parallel, and one of the surfaces facing each other to form the port portion 50 is inclined. In other words, in the port side portion 51 of the first core fin 10, the surface forming the port portion 50 is inclined with respect to the plane direction on which the first core fin 10 is located. In this way, it is possible to increase the cross section of the port portion 50 and at the same time decrease the angle between the port side portion 51 and the airflow entering from the vent of the air treatment device, thereby reducing the obstruction of the airflow. can.
- the second core fin 20 has a port side portion 52 forming the port portion 50 , and a plurality of partition ribs 521 are provided on the surface of the port side portion 52 forming the port portion 50 . wherein the surface forming the port portion 50 of the port side portion 52 is essentially parallel to the plane in which the second core fin 20 lies.
- the partition rib 521 contacts the inclined surface 510 of the first core fin 10, and the inclined surface 510 of the first core fin 10 and the parallel surface 520 of the second core fin are Surroundingly forming the port portion 50, a dividing rib 521 is supported between the inclined surface 510 and the parallel surface 520, and the dividing rib 521' divides the airflow path with the dividing rib 521 to improve the uniformity of the airflow. At the same time, it can also be used to support the port side portion 51 and help improve the strength of the heat exchanger 1 .
- the surface of the port side portion 51 of the first core fin 10 facing the airflow passage includes an inclined slope contour shape and has a tapered cross section toward the outermost side of the port portion 50 .
- the angled surface may alternatively be a curved or stepped surface and may have a maximum height dimension at the outermost portion of the port portion 50 .
- the heat exchanger 1 formed by stacking the first core fin 10, the second core fin 20 and the membrane 30 further comprises a shell, the core fins 10, 20 and the membrane 30 being within the shell 70. are housed in The shell 70 of the heat exchanger 1 is mounted in, for example, an air conditioning system via guide rails formed by folding back the baffle plate 60 .
- the length of one partition rib closest to the guide rail in port portion 50 is less than the length of the remaining partition ribs in port portion 50 .
- the airflow can smoothly flow into the flow path near the guide rail.
- the influence of the guide rails on the intake and exhaust flow rates at localized positions of the port portion 50 can be minimized.
- the leftmost dividing rib 521 ′ extends slightly over the parallel surface 520 of the port portion 50 , and the remaining dividing ribs extend essentially all the way across the parallel surface 520 of the port portion 50 . exist.
- short dividing ribs 521' and long dividing ribs 521 are alternately arranged, and as shown in FIG. 8, the dividing rib at one end of the port portion 50 closest to the guide rail is It is a short partition rib 521'. In this way, the flow area of the port portion can be further increased.
- FIG. has a shape that guides the airflow along the traveling direction of the airflow.
- airflow enters from the fresh air inlet 110 or the return air inlet 130 along substantially parallel directions.
- the direction of airflow entry is approximately parallel to the top and bottom plates of the housing of device 100 .
- the guide portions 523 and 523' of the partition ribs 521 and 521' are formed to have a shape that guides the airflow along the parallel airflow directions.
- the flow guides 523' include inclined surfaces provided at the ends of the partition ribs 521', which are disposed obliquely to the parallel surfaces of the port side portions 52 and whose tips are vertical surfaces.
- the sloping surface can reduce the angle between the air treatment device vent and the parallel incoming airflow, further reducing airflow obstruction and reducing pressure loss.
- the guide part 523 on it includes a curved part that faces the tip of the partition rib 521 in the direction of the airflow, and guides the airflow that flows parallel to the ventilation opening of the air treatment device. It can reduce encumbrance and reduce pressure loss.
- the outermost height of the inlet of the airflow passage formed by stacking the first core fins 10 and the second core fins 20 is equal to the height of the outermost position between the inlet and the outlet of the airflow passage. is greater than the distance between fin layers in the direction perpendicular to the direction of airflow.
- the port sides of the first and second short sides 101 and 102 of the first core fin 10 have inclined surfaces.
- Port side portions of the first and second short sides 201 and 202 of the second core fin 20, which are the side portions 51, are port side portions 52 having partition ribs.
- the partition ribs 521 of the first and second short sides 201, 203 of the second core fin 20 contact the inclined surfaces 510 of the first and second short sides 101, 102 of the first core fin 10, the first and second The two short sides 101 , 201 , 102 and 202 form the port portion 50 .
- the port portion 50 is formed by the first short side and the second short side
- Sides 51 and 52 are abutted and joined by rear parallel surfaces, and as shown in FIG. 14, membrane 30 can be interposed between the two parallel surfaces so that the third short side and the fourth short side has no airflow.
- the third and fourth short sides 103 and 104 of the first core fin 10 are provided with port side parts 52 with partition ribs 521, that is, the first and second short sides 201 of the second core fin 20, 202 , but the partition ribs 521 of the port sides 52 of the third and fourth short sides 103 , 104 of the first core fin 10 are located at the first and second short sides 101 and 102 are formed on the surface opposite to the inclined surface 510 formed thereon.
- the third and fourth short sides 203 and 204 of the second core fin 20 are provided with port sides 51 with inclined surfaces 510, i.e. the third and fourth short sides of the second core fin 20
- the port side portions 51 at 203 and 204 have an inclined surface 510 so that the port side portions 51 taper toward the outermost side of the port portion 50 in a cross section parallel to the airflow direction, but the inclination
- the surface is located on the side of the second core fin 20 opposite to the side on which the partition ribs 521 are formed.
- the inclined surfaces 510 of the port side portions 51 of the third and fourth short sides 203 and 204 of the second core fin 20 are aligned with the port sides of the third and fourth short sides 103 and 104 of the first core fin 10 .
- the third and fourth short sides can form the port portion 50 of the intersecting flow path.
- the frames of the hexagonal first core fins 10 and the second core fins 20 are composed of a hexagonal outer frame, main partition ribs 15, 25 located inside the outer frame, and longitudinal ribs 15, 25.
- Directional ribs 17, 27 are included.
- the main partition ribs 15, 25 extend between the side portions 51, 51 or 52, 52 of the pair of two port portions along the airflow direction of the airflow passage.
- the partition ribs 521 on the port side portions 52 of the first core fin 10 and the second core fin 20 and the main partition ribs 15, 25 are formed continuously.
- the longitudinal ribs 17, 27 are formed transversely to the airflow direction in the airflow passage to divide the hexagonal outer frame into two triangular regions and a square region located between the two triangular regions.
- the ribs connect the main partitioning ribs and the sub-partitioning ribs, serve to improve the strength of the core fins, and can prevent deformation of the membrane in the air flow direction.
- the square region of the core fin frame further comprises secondary partition ribs 16, 26 essentially parallel to the main partition ribs, these secondary partition ribs 16, 26 extending longitudinally on one side of the square region. It extends from the rib 17,27 to the longitudinal rib 17,27 on the other side.
- the equal distance from the minor partition ribs 16, 26 to the adjacent major partition ribs 15, 25 on either side guides the airflow through the heat exchanger more uniformly, effectively reducing membrane deformation. can be avoided.
- a guide part 161 may be provided at the tip of the sub-partition ribs 16 and 26 adjacent to the longitudinal ribs 17 and 27 to better guide the airflow.
- the guide section 161 includes an end curved shape that curves along the curved direction of the longitudinal ribs 17 and 27, guides the airflow, Helps reduce airflow obstruction.
- the long sides 205, 206 of the second core fin 20 and the long sides 105, 106 of the first core fin 10 are positioned closer to the ports, as shown in FIGS.
- Curved surfaces 2051 , 2061 , 1051 , 1061 substantially parallel to the main partition ribs 15 , 25 are also formed. In this way, it is possible to guide the airflow in the flow path near the long side, reduce the pressure loss, and reduce the obstruction of the airflow.
- the membrane 30 may also be attached to the front sides or partition ribs of adjacent core fins.
- the long sides of the first core fin 10 and the second core fin 20 are further provided with pin holes 18, 28, and the heat exchanger further comprises a fixing column (not shown).
- the film is attached to the core fins, and then the plurality of first core fins 10 with the membrane 30 attached and the second core fins 20 with the membrane 30 attached are alternately fixed using the pin holes 18 , 28 .
- the pillars may be drilled and tightly crimped to form the core, and the fixed pillars may be alternately drilled and tightly crimped to form the core in the manner of one layer of core fins and one layer of membrane. good too.
- the contour shape of the membrane 30 is substantially the same as the contour shape of the core fins 10, 20, and the membrane 30 is also provided with through-holes that engage with the fixed posts. In this way, positioning using the fixing posts can ensure alignment between the membrane 30 and the frame of the core fins 10, 20, specifically the convex surface 41 for attaching the membrane, so that the membrane does not bend. Avoid airflow leaks due to sticking.
- the membrane 30 may be provided with extension surfaces 181 and 281 at the edges of the pinholes of the core fins to prevent airflow leakage from existing in the pinholes 18, 28; Ensure that the membrane is in close contact with the core fins even in the through holes.
- a marker for the first core fin 10 and a marker for the second core fin 20 can be provided in front of the core fins.
- a marker is, for example, a number, a figure, or the like. Providing the markers not only helps distinguish between the first core fin 10 and the second core fin 20, but also helps distinguish between the front and back surfaces of the core fins, thereby improving the convenience of processing.
- the first core fin 10 and the second core fin 20 in order to improve the convenience of stacking the first core fin 10 and the second core fin 20, as shown in FIG. 24 can be provided.
- the positioning portions 14 and 24 By providing the positioning portions 14 and 24, the convenience of assembly can be improved, and at the same time, by fitting the positioning portions 14 and 24 to each other, the sealing performance of the core can be improved.
- the edges of the first core fin 10 and the second core fin 20 are further provided with notches 19 and 29, and the plurality of core fins 10 and the core fins 20 are tightly crimped by the fixing posts.
- the notches 19 and 29 can be filled with adhesive (eg, silica gel) to further seal the core.
- a shell 70 is provided around the core, and a sealing material is provided between the core and the shell 70 in order to ensure the sealing performance of the heat exchanger and prevent airflow leakage. be done.
- the longitudinal ribs 17, 27, the main partition ribs 15, 25 and the hexagonal shell of the first core fin 10 and the second core fin 20 have a continuous flat surface, which is usually Referred to as the back surface of the core fin, membrane 30 is attached to the back surface, for example by gluing or hot-melting, and the front surfaces of core fins 10 and 20 mate with the back surfaces of adjacent core fins.
- membrane 30 is attached to the back surface, for example by gluing or hot-melting, and the front surfaces of core fins 10 and 20 mate with the back surfaces of adjacent core fins.
- a convex surface 41 can be formed on the rear surface of the first core fin 10 and the second core fin 20 to which the membrane 30 is attached, and the first core fin 10 and the second core fin 20 can be The front surface of 20 forms a concave surface 42, the membrane 30 is attached to the back surface by adhesive bonding or hot melt, and after the core fin and membrane are laminated together, the concave surface 42 and the convex surface 41 can be fitted together. This allows for improved sealing between adjacent core fins 10 , 20 and membrane 30 .
- the height dimension of the longitudinal ribs 17, 27 in the core fin lamination direction may be less than or equal to the height dimension of the main and sub-partition ribs 16, 26 in the core fin lamination direction.
- pin holes 18 and 28 are further provided in the outer frame of the first core fin 10 and the second core fin 20, and after stacking and assembling a plurality of core fins, fixing posts (not shown) are drilled in the pin holes. multiple core fins can be fixed. And besides the sealing of the heat exchanger can be further improved, the pin holes can further be used to precisely position the core fins 10, 20 relative to each other when mounting.
- the partition ribs 15, 16, 25, 26 in the airflow passage between the first core fins 10 and the second core fins 20 may have multiple arrangements.
- all the main and sub-partition ribs 15 and 16 in the core fin 10 have the same height in the core fin stacking direction.
- One side of the minor rib contacts the membrane 30 .
- the height of the main partition rib 15' of the first core fin 10 in the core fin stacking direction is higher than the height of the sub-partition rib 16', and all partition ribs have cross sections perpendicular to the airflow direction. Since one end of the film is flush with the film 30, the other end is arranged alternately with height. Thereby, the deformation of the membrane can be effectively prevented, and at the same time, the area of the airflow path can be increased.
- the height of the primary partition ribs 15′′ is higher than the height of the secondary partition ribs 16′′, and one end of all the primary partition ribs 15′′ is flush for bonding the membranes together.
- the height position of the secondary partition rib 16 ′′ is between the two ends of the primary partition rib 15 ′′, i.e. in the mounted state the secondary partition rib 16 ′′ is between two adjacent membranes 30 , Without direct contact with any membrane 30, deformation of the membrane can be effectively prevented, and at the same time, the area of the airflow path can be increased.
- the width of the side edges of the ribs 15, 16, 25 and 26 to which the membrane is attached is equal to the width of the side edges of the partition ribs away from the membrane.
- an opening 525 is provided for the airflow to pass through on the side away from the membrane to which the partition rib 15 is attached.
- the openings 525 on the partition ribs 15 may be toothed or corrugated.
- membrane 30 is preferably made of plastic, such as polymeric material, and membranes made of plastic are easy to clean and have a long service life. If the heat exchanger uses plastic membranes, the heat exchanger is easy to clean with a liquid (eg water). At this time, the structure of the enlarged port portion according to the present invention helps the cleaning liquid to enter deeply into the heat exchanger and also helps to lead the liquid out of the heat exchanger. Particularly when the core fin has a tapered cross-section port side, the angled surface of the port side helps guide the cleaning liquid into or out of the heat exchanger. Thereby, the cleaning effect can be improved and the heat exchanger can be dried efficiently.
- the membrane material may be made of paper.
- the core fins 10, 20 have a hexagonal shape with port portions 50 formed on their short sides. It should be appreciated that in other alternative embodiments, the hexagonal core fins may have sides of equal length. Also, in other alternative embodiments, the core fins may have other shapes, such as, for example, squares, with opposite sides of the squares pairing to form airflow passages.
- FIG. 15 shows a schematic plan view of core fins in a heat exchanger according to another preferred embodiment of the present invention.
- the core fin 10' schematically shows a port portion, and the port portion 50' on one side of the core fin 10' can be an inlet portion, and the opposite port portion 50' on the other side can be an outlet portion. , can flow from the inlet to the outlet.
- the port portion 50' is also formed by the port side portions of two adjacently stacked core fins, one of which has a port side portion having a flat surface forming the port portion, and the other side portion having a flat surface forming the port portion.
- the core fin is provided with a port portion partitioning rib 501' on the port side portion, and when forming the port portion, the port portion partitioning rib 501' abuts on a plane.
- the core fin also includes a main partition rib 502' extending from one port portion to another port portion, and the main partition rib 502' side is used to attach the membrane.
- the width of the port partition rib 501' of the core fin is smaller than the width of the main partition rib 502', so that the length of the space between the adjacent port partition ribs 501' of the port of the core fin 10' is less than the length of the space between adjacent main partition ribs 502'.
- the number of port partition ribs 501' in the core fin corresponds to the number of main partition ribs 502', and preferably the main partition ribs 502' are aligned with the corresponding port partition ribs 501'. are integrally formed with and extend in alignment with each other.
- a port side with narrow port part dividing ribs as shown in FIG. 15 may also be used with horizontally arranged port sides, the ports having a cross section tapering towards the outermost side. It should be understood that they may be used in conjunction with the sides. To further increase the inlet area of the port portion when the port side portion having narrow port portion partitioning ribs cooperates with the port side portion having the cross section tapering toward the outermost side to form the port portion. , thereby improving the flow rate of airflow into and out of the port.
- the air flow ports are flared toward the outermost side or the width of the port partition ribs is narrowed to reduce resistance when the air flow enters the heat exchanger. , the air flow becomes smoother and the flow velocity inside the heat exchanger is improved, thereby improving the heat exchange efficiency of the heat exchanger.
- the core fin frame structure according to the present invention it is possible to reliably protect and support the membrane in the heat exchanger, reduce the obstruction of the airflow by the membrane, and extend the service life.
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Abstract
Description
図6に示すように、第二コアフィン20は、ポート部50を形成するポート側辺部52を有し、該ポート側辺部52のポート部50を形成する表面に複数の仕切りリブ521が設けられ、そのうち、ポート側辺部52のポート部50を形成する表面は、第二コアフィン20が位置する平面に基本的に平行である。第一コアフィン10と第二コアフィン20が積層されるとき、仕切りリブ521は、第一コアフィン10の傾斜表面510に当接し、第一コアフィン10の傾斜表面510と第二コアフィンの平行表面520は、取り囲んでポート部50を形成し、仕切りリブ521は、傾斜表面510と平行表面520との間に支持され、仕切りリブ521’は、仕切りリブ521と共に気流経路を仕切り、気流の均一性を向上させると同時に、さらに、ポート側辺部51を支持するために用いることができ、熱交換器1の強度を向上させることに役立つ。
第1コアフィン10と第2コアフィン20との間の気流通路における仕切りリブ15、16、25、26は、複数の配置形態を有してもよい。
10 第一コアフィン
20 第二コアフィン
10’ コアフィン
101,201 第一短側辺
102,202 第二短側辺
103,203 第三短側辺
104,204 第四短側辺
105,106,205、206 長側辺
1051,1061,2051,2061 曲面
14,24 位置決め部
15,25 主仕切りリブ
16,26 副仕切りリブ
17,27 縦方向リブ
18,28 ピン孔
181,281 延展面
19,29 切欠き部
30 膜
41 凸面
42 凹面
50,50’ ポート部
51 ポート側辺部
510 傾斜表面
52 ポート側辺部
520 平行表面
521,521’ 仕切りリブ
523,523’ 主仕切りリブ導流部
525 開口
161 副仕切りリブ導流部
60 バッフル
70 シェル
501’ ポート部仕切りリブ
502’ 主仕切りリブ
100 空気処理装置
110 新気口
120 送気口
130 還気口
140 排気口
Claims (17)
- 複数のコアフィン及び複数の膜を含み、前記複数の膜は、一つの前記コアフィンの一方の側面にそれぞれ付設され、前記コアフィンと前記膜は、交互に積層されて気流通路を形成し、
前記複数のコアフィンは、第一コアフィンと第二コアフィンとを含み、前記第一コアフィンと前記第二コアフィンは、互いに積層されることによって、その間に前記気流通路が形成され、
前記気流通路は、対向して配置される二つのポート部を備え、前記ポート部のうちの一つは、入口部であり、もう一つは、出口部であり、気流は、気流方向に沿って前記入口部から前記出口部へ流れる熱交換器であって、
前記第一コアフィンと前記第二コアフィンは、積層して前記ポート部を形成するポート側辺部をそれぞれ備え、
前記第一コアフィンと前記第二コアフィンの積層方向において、前記ポート部の少なくとも一つの少なくとも最外側のフィン層間距離は、前記気流通路の前記入口部と前記出口部との間の他の位置のフィン層間距離よりも大きい、及び/または、
前記第二コアフィンのポート側辺部には、ポート部仕切りリブが設けられ、前記第一コアフィンのポート側辺部は、前記ポート部仕切りリブに当接する表面を有し、且つ、前記ポート部仕切りリブの幅が前記入口部であるポート部のポート側辺部と前記出口部であるポート部のポート側辺部との間に延在する主仕切りリブの幅よりも小さい、
ことを特徴とする熱交換器。 - 前記第一コアフィンの前記ポート側辺部は、気流方向に平行な横断面において、最外側に向かって先細りとなる、
ことを特徴とする請求項1に記載の熱交換器。 - 前記第二コアフィンの前記ポート側辺部の前記第一コアフィンに向かう表面には、複数のポート部仕切りリブが設けられる、
ことを特徴とする請求項2に記載の熱交換器。 - 前記第一コアフィンの前記ポート側辺部の前記気流通路に向かう表面は、斜面、曲面及び段差面のいずれか一種の輪郭形状を含む、
ことを特徴とする請求項2に記載の熱交換器。 - 前記気流通路の前記入口部の最外側のフィン層間距離は、前記気流通路の前記入口部と前記出口部との間の他の位置の前記気流方向に垂直なフィン層間距離よりも大きい、
ことを特徴とする請求項1に記載の熱交換器。 - 前記ポート部は、前記ポート側辺部の延在方向に沿って第一端及び第二端を含み、
前記第二コアフィンの前記複数のポート部仕切りリブのうちの第一端に最も近い仕切りリブの長さは、他の仕切りリブの長さよりも小さい、
ことを特徴とする請求項3に記載の熱交換器。 - 前記熱交換器は、前記複数のコアフィン及び複数の膜を収容するシェルをさらに含み、前記気流通路は、交差する第一流路および第二流路を含み、前記第一流路と前記第二流路は、入口部と出口部をそれぞれ有し、前記第一流路の入口部は、前記第二流路の出口部に隣接する一方、前記第二流路の入口部は、前記第一流路の出口部に隣接し、
前記シェルは、入口部及び出口部に隣接する位置にバッフルが設けられるとともに、前記バッフルを折り返してフィルタガイドレールを形成し、前記ガイドレールに対応する位置での前記ポート部仕切りリブの長さは、残りの前記ポート部仕切りリブの長さよりも小さい、
ことを特徴とする請求項3に記載の熱交換器。 - 前記ポート部仕切りリブの端部には、気流の進行方向に沿って気流をガイドする形状を有する導流部が設けられる、
ことを特徴とする請求項3または6に記載の熱交換器。 - 前記第二コアフィンの複数のポート部仕切りリブは、交互に設けられる、相対的に短い第一ポート部仕切りリブ及び相対的に長い第二ポート部仕切りリブを備え、
前記ポート部は、前記ポート側辺部の延在方向に沿って第一端及び第二端を含み、前記第一端に最も近いポート部仕切りリブは、前記第一ポート部仕切りリブである、
ことを特徴とする請求項3に記載の熱交換器。 - 前記第一コアフィンは、第一枠を含み、前記第二コアフィンは、第二枠を含み、
前記第一枠と前記第二枠の各々は、
六角形の外枠と、
基本的に前記気流通路の気流方向に沿って前記入口部から前記出口部まで延在する主仕切りリブと、
前記気流通路における気流方向を横切って延在する二つの縦方向リブであって、前記外枠を二つの三角形領域と二つの三角形領域の間に位置する方形領域とに仕切る二つの縦方向リブと、を含み、
前記方形領域内に前記主仕切りリブに基本的に平行な副仕切りリブをさらに備える、
ことを特徴とする請求項1に記載の熱交換器。 - 前記副仕切りリブが両側の隣接する主仕切りリブとの距離が等しい、
ことを特徴とする請求項10に記載の熱交換器。 - 前記副仕切りリブの前記積層方向での高さが前記主仕切りリブの高さ以下である、
ことを特徴とする請求項10に記載の熱交換器。 - 前記入口部であるポート部のポート側辺部と前記出口部であるポート部のポート側辺部との間に延在する主仕切りリブの、前記膜が貼り付けられる側の幅は、前記膜から離れた側の幅よりも小さい、
ことを特徴とする請求項1に記載の熱交換器。 - 前記入口部であるポート部のポート側辺部と前記出口部であるポート部のポート側辺部との間に延在する主仕切りリブの、貼り付けられた膜から離れた側には、気流が通過するための開口が設けられる、
ことを特徴とする請求項1に記載の熱交換器。 - 前記第一コアフィンは、第一枠を有し、前記第二コアフィンは、第二枠を有し、前記第一枠及び前記第二枠は、互いに積層された同じ輪郭形状を有し、
前記第一コアフィンのポート側辺部及び前記第二コアフィンのポート側辺部は、それぞれ前記第一枠及び前記第二枠の各々の対角に配置された第一部分及び第二部分に沿って設けられ、
前記第一枠及び前記第二枠はさらに、対角に配置された第三部分及び第四部分をそれぞれ含み、前記第三部分及び第四部分に沿って交差ポート側辺部が形成され、
前記第一枠の交差ポート側辺部は、前記第二コアフィンと反対側の表面に複数のポート部仕切りリブが設けられ、
前記第二枠の交差ポート側辺部は、前記気流方向に平行な横断面において、前記最外側に向かって先細りとなる、または、前記第一枠の前記交差ポート側辺部のポート部仕切りリブの幅は、前記入口部であるポート部のポート側辺部と前記出口部であるポート部のポート側辺部との間に延在する主仕切りリブの幅よりも小さい、
ことを特徴とする請求項1に記載の熱交換器。 - 前記第二枠の交差ポート側辺部は、斜面、曲面及び段差面のいずれか一種の輪郭形状を含み、且つ、前記輪郭形状と前記第二コアフィンのポート側辺部の仕切りリブとは、前記第二枠の二つの側面にそれぞれ形成される、
ことを特徴とする請求項15に記載の熱交換器。 - 前記ポート部が第一入口部と第一出口部及び第二入口部と第二出口部を含む、請求項1~16のいずれかに記載の熱交換器と、
前記第一入口部と連通して新気気流を導入する新気口及び前記第一出口部と連通して新気気流を送り出す送気口と、
前記第二入口部と連通して室内気流を導入する還気口及び前記第二出口部と連通して室内気流を送り出す排気口と、を含み、
前記新気気流及び前記室内気流は、互いに交差して前記熱交換器を流れて熱交換を行う、
空気処理装置。
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