CN114111115A - Heat exchanger and air conditioner - Google Patents
Heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN114111115A CN114111115A CN202111422970.7A CN202111422970A CN114111115A CN 114111115 A CN114111115 A CN 114111115A CN 202111422970 A CN202111422970 A CN 202111422970A CN 114111115 A CN114111115 A CN 114111115A
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- Prior art keywords
- porous foam
- heat exchanger
- foam type
- type metal
- porous
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 164
- 239000002184 metal Substances 0.000 claims abstract description 164
- 239000006260 foam Substances 0.000 claims abstract description 123
- 239000003507 refrigerant Substances 0.000 claims abstract description 34
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 230000007423 decrease Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 150000002739 metals Chemical class 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000001413 cellular effect Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052755 nonmetal Inorganic materials 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchanger and an air conditioner, wherein the heat exchanger comprises a plurality of pipelines and porous foam type metal, the pipelines are communicated with an external refrigerant pipeline, the porous foam type metal is filled between the two pipelines, pores of the porous foam type metal are used for circulating media for exchanging heat with the pipelines, and the refrigerant exchanges heat with the media flowing through the pores of the porous foam type metal when the plurality of pipelines circulate, so that the heat exchange efficiency of the heat exchanger is improved, and the problems of low strength and easy fin falling of the heat exchanger are solved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a heat exchanger and an air conditioner.
Background
The heat exchanger plays an extremely important role in an air conditioning system, and in the field of vehicle air conditioners, the requirements on the heat exchanger are high in heat exchange efficiency, and the comprehensive indexes such as volume, weight, strength and the like are emphasized. Most of the existing vehicle air conditioner heat exchangers are aluminum micro-channel heat exchangers, but the problems of low heat exchange efficiency, large occupied space, insufficient heat exchange quantity, low component strength, easy fin falling and the like still exist.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems of low strength of the heat exchanger, easy fin falling, low heat exchange efficiency of the heat exchanger and insufficient heat exchange quantity. Thereby providing a heat exchanger and an air conditioner.
In order to solve the above problems, the present invention provides a heat exchanger, comprising: the heat exchanger comprises a plurality of pipelines and porous foam type metal, wherein the pipelines are communicated with an external refrigerant pipeline, the porous foam type metal is filled between the two pipelines, and pores of the porous foam type metal are used for circulating media for exchanging heat with the pipelines.
In some embodiments, the headers include a first header and a second header, the first header and the second header are communicated through a plurality of pipes, and the first header or the second header is communicated with an external refrigerant pipe through two refrigerant pipe joints.
In some embodiments, the refrigerant pipe further comprises a partition, the partition divides the first collecting pipe and the second collecting pipe into a plurality of collecting units corresponding to each other, and each collecting unit on the first collecting pipe or the second collecting pipe is communicated with an external refrigerant pipeline through two refrigerant pipe joints.
In some embodiments, the porous foam type metal is welded to the pipe.
In some embodiments, the conduit and the porous foam-type metal are both made of a metal or non-metal material having thermal conductivity.
In some embodiments, the tube and the porous foam-type metal are both made of copper, aluminum, or an alloy material.
In some embodiments, the shape of the pores of the cross section of the porous foam type metal is any one of a circle, an ellipse, and a polygon.
In some embodiments, the average porosity of the cross-section of the porous foam metal is the same in both the height direction of the porous foam metal and the direction of media flow.
In some embodiments, the height direction center line of the porous foam metal is a first center line, and the average porosity of the cross section of the porous foam metal decreases linearly or nonlinearly from the first center line to both sides, and the average porosity of the cross section of the porous foam metal is the same along the direction of the medium flow.
In some embodiments, the average porosity of the porous foam-type metal section is reduced from 98% to 80%.
In some embodiments, the height direction center line of the porous foam type metal is a first center line, and the average porosity of the cross section of the porous foam type metal decreases linearly or nonlinearly from the first center line to both sides, and the average porosity of the cross section of the porous foam type metal increases linearly or nonlinearly in the direction of the medium flow.
In some embodiments, the average porosity of a cross-section of the porous cellular metal decreases from 98% to 80% from the centerline of the porous cellular metal to both sides, and the average porosity of a cross-section of the porous cellular metal increases from 89% to 92% in the direction of media flow.
In some embodiments, the porous foam type metal includes at least a first porous foam type metal layer, a second porous foam type metal layer, and a third porous foam type metal layer, which are sequentially arranged from top to bottom in a height direction of the multilayer porous foam type metal.
In some embodiments, the first porous foam-type metal layer and the third porous foam-type metal layer have an average porosity that is equal, and the first porous foam-type metal layer has an average porosity that is less than the average porosity of the second porous foam-type metal layer.
In some embodiments, the porous foam metal layer comprises at least a fourth porous foam metal layer and a fifth porous foam metal layer disposed in sequence along the direction of flow of the medium, the fourth porous foam metal layer and the fifth porous foam metal layer are of equal thickness, a second centerline is formed where the fourth porous foam metal layer and the fifth porous foam metal layer join, and the fourth porous foam metal layer has an average porosity that is less than an average porosity of the fifth porous foam metal layer.
In some embodiments, a sheet structure of the same material as the porous foam type metal is disposed between the pipe and the porous foam type metal.
In some embodiments, the conduit is a round, flat, or oval tube.
The invention also provides an air conditioner which comprises the heat exchanger.
The heat exchanger provided by the invention has the following beneficial effects:
the invention provides a heat exchanger which comprises a plurality of pipelines and porous foam type metal, wherein the pipelines are communicated with an external refrigerant pipeline, the porous foam type metal is filled between the two pipelines, pores of the porous foam type metal are used for circulating media for exchanging heat with the pipelines, and the refrigerant exchanges heat with the media flowing through the pores of the porous foam type metal when the plurality of pipelines circulate, so that the heat exchange efficiency of the heat exchanger is improved, and the problems of low strength and easy falling of fins of the heat exchanger are solved.
On the other hand, the air conditioner provided by the invention is based on the heat exchanger, and the beneficial effects of the air conditioner refer to the beneficial effects of the heat exchanger, which are not described herein again.
Drawings
FIG. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a porous foam type metal according to an embodiment of the present invention;
FIG. 3 is a line drawing showing the variation in height of the pores of the porous foam type metal of FIG. 2 in accordance with an embodiment of the present invention;
FIG. 4 is a line drawing of the pores of the porous foam metal of FIG. 2 with a change in the direction of flow of the fluid medium in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural view of a porous foam type metal according to an embodiment of the present invention;
FIG. 6 is a line drawing showing the variation in height of the pores of the porous foam type metal of FIG. 5 in accordance with an embodiment of the present invention;
FIG. 7 is a line drawing of the pores of the porous foam metal of FIG. 5 with a change in the direction of flow of the fluid medium in accordance with an embodiment of the present invention;
FIG. 8 is a schematic structural view of a porous foam type metal according to an embodiment of the present invention;
FIG. 9 is a line drawing showing the variation in height of the pores of the porous foam type metal of FIG. 8 in accordance with an embodiment of the present invention;
FIG. 10 is a line drawing of the pores of the porous foam metal of FIG. 8 with a change in the direction of flow of the fluid medium in accordance with an embodiment of the present invention;
FIG. 11 is a schematic structural view of a porous foam-type metal according to an embodiment of the present invention;
the reference numerals are represented as:
1. a pipeline; 2. a porous foam type metal; 3. a first header; 4. a refrigerant pipe joint; 5. a spacer; 6. a second header; 7. a current collecting unit; 8. a first porous foam-type metal layer; 9. a second porous foam-type metal layer; 10. a third porous foam-type metal layer; 11. a fourth porous foam-type metal layer; 12. a fifth porous foam type metal layer; 13. a sheet-like structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 11, the present invention provides a heat exchanger, including a plurality of pipes 1 and a porous foam metal 2, where the pipes 1 are communicated with an external refrigerant pipeline, the porous foam metal 2 is filled between the two pipes 1, and pores of the porous foam metal 2 are used for circulating a medium for exchanging heat with the pipes 1.
The medium includes air or other fluid medium, etc.
The heat exchanger of this embodiment includes: many pipelines 1 and porous foam type metal 2, pipeline 1 and outside refrigerant pipeline intercommunication have filled porous foam type metal 2 between two pipelines 1, and the hole of porous foam type metal 2 is used for the medium of circulation and pipeline 1 heat transfer, and the refrigerant exchanges heat with the medium that the hole of porous foam type metal 2 flows through when many pipelines 1 circulate, has improved heat exchanger heat exchange efficiency, has solved the problem that heat exchanger intensity is low, the fin is easily rewound simultaneously.
In some embodiments, the headers include a first header 3 and a second header 6, the first header 3 and the second header 6 are communicated through a plurality of tubes 1, and the first header 3 or the second header 6 is communicated with an external refrigerant pipe through two refrigerant pipe joints 4.
The embodiment includes first pressure manifold 3 and second pressure manifold 6 through the pressure manifold, first pressure manifold 3 and second pressure manifold 6 are through many 1 intercommunications of pipeline, first pressure manifold 3 or second pressure manifold 6 are through two refrigerant coupling 4 and outside refrigerant pipeline intercommunication, the refrigerant flows into a pressure manifold 3 through refrigerant coupling 4 from outside refrigerant pipeline, continue to flow into pipeline 1 and then flow into second pressure manifold 6 and flow back to first pressure manifold 3 through an outer refrigerant coupling 4 through other pipeline 1 and flow out, the space between pipeline 1 and first pressure manifold 3 and second pressure manifold 6 is provided with porous foam type metal 2, the refrigerant exchanges heat with the medium that the hole of porous foam type metal 2 flowed through when many 1 circulation of pipeline, heat exchanger heat exchange efficiency has been improved, the problem that the heat exchanger intensity is low has been solved simultaneously, the fin is easily fallen the piece.
In some embodiments, the refrigerant pipe connector further comprises a partition 5, the partition 5 partitions the first header 3 and the second header 6 into a plurality of header units 7 corresponding to each other, and each header unit 7 on the first header 3 or the second header 6 is communicated with an external refrigerant pipe through two refrigerant pipe connectors 4.
The heat exchanger of this embodiment still includes spacer 5, and spacer 5 separates into a plurality of collecting units 7 of one-to-one with first pressure manifold 3 and second pressure manifold 6, and every collecting unit 7 on first pressure manifold 3 or the second pressure manifold 6 all communicates with outside refrigerant pipeline through two refrigerant coupling 4, has improved the volume of the refrigerant that flows through in the heat exchanger in the unit interval, has improved heat exchanger heat exchange efficiency.
The collecting units 7 can be the same in length or different in length, and can be flexibly arranged according to heat exchange requirements of different positions, so that the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the porous foam type metal 2 is welded to the pipe 1.
In some embodiments, both the pipe 1 and the porous foam type metal 2 are made of a metal or non-metal material having thermal conductivity.
The heat exchanger heat exchange efficiency is ensured by the fact that the pipe 1 and the porous foam type metal 2 are made of metal or nonmetal materials with heat conductivity.
In some embodiments, the tube 1 and the porous foam type metal 2 are both made of copper, aluminum or an alloy material.
In the embodiment, the pipe 1 and the porous foam metal 2 are made of pure metals such as copper and aluminum with high heat transfer performance or alloy materials of the metals, so that the heat exchange efficiency of the heat exchanger is improved.
Preferably, the pipeline 1 and the porous foam type metal 2 are made of the same material, and can be selected from aluminum alloy, so that the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the shape of the pores of the cross section of the porous foam type metal 2 is any one of a circle, an ellipse, and a polygon. The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the average porosity of the cross section of the porous foam type metal 2 is the same in both the height direction of the porous foam type metal 2 and the direction of the medium flow. The pipe 1 is more advantageous in the case of a smaller distance, because the distance between two adjacent pipes 1 is smaller, heat is transferred from the pipe 1 to the porous foam metal 2, the average porosity of the cross section of the porous foam metal 2 is the same in the height direction of the porous foam metal 2 and the medium flowing direction, the heat dissipation area and the circulating medium are uniformly distributed, heat dissipation is facilitated, and the pipe is easy to process.
In some embodiments, the height direction center line of the porous foam type metal 2 is a first center line, and the average porosity of the cross section of the porous foam type metal 2 decreases linearly or nonlinearly from the first center line to both sides, and the average porosity of the cross section of the porous foam type metal 2 is the same in the direction of the medium flow.
This embodiment considers pipeline 1 apart from great condition, especially when the heat exchanger volume is great, pipeline 1 sets up less condition, when this kind of condition is followed pipeline 1 heat transfer to porous foam type metal 2, can produce great gradient at 2 direction of height of porous foam type metal, it is great to be close to 1 heat transfer difference in pipeline, middle heat transfer difference in temperature is less, the big principle of heat transfer area when porous foam type metal 2's pore distribution obeys big difference in temperature this moment, porosity is little simultaneously, the medium velocity of flow of heat transfer of flowing through is great relatively, more do benefit to the heat dissipation.
The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the average porosity of the porous foam-type metal 2 cross section is reduced from 98% to 80%. The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the height direction center line of the porous foam type metal 2 is a first center line, and the average porosity of the cross section of the porous foam type metal 2 decreases linearly or nonlinearly from the first center line to both sides, and the average porosity of the cross section of the porous foam type metal 2 increases linearly or nonlinearly in the direction of the medium flow.
When the condition of 1 width broad of pipeline is considered to this embodiment, the more obvious condition of medium inflow direction heat transfer difference in temperature promptly, the heat transfer back takes place in the upper reaches that the medium of this kind of condition flowed in, it is obvious to rise to the low reaches temperature that the medium flowed in, the heat transfer difference in temperature that causes the upper reaches that the medium flowed in is big, the heat transfer difference in temperature of the low reaches that the medium flowed in is little, the big principle of heat transfer area when porous foam type metal 2's pore distribution obeyed big difference in temperature this moment, porosity is little simultaneously, the medium velocity of flow of heat transfer of flowing through is great relatively, more do benefit to the heat dissipation.
The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the average porosity of the cross section of the porous foam type metal 2 decreases from 98% to 80% from the center line of the porous foam type metal 2 to both sides, and the average porosity of the cross section of the porous foam type metal 2 increases from 89% to 92% in the direction of the medium flow. The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the porous foam type metal 2 includes at least a first porous foam type metal layer 8, a second porous foam type metal layer 9, and a third porous foam type metal layer 10, which are sequentially arranged from top to bottom in a height direction of the multilayer porous foam type metal 2. The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the average porosity of the first porous foam-type metal layer 8 is equal to the average porosity of the third porous foam-type metal layer 10, and the average porosity of the first porous foam-type metal layer 8 is less than the average porosity of the second porous foam-type metal layer 9. The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, the porous foam type metal 2 includes at least a fourth porous foam type metal layer 11 and a fifth porous foam type metal layer 12 sequentially arranged in the direction of the medium flow, the fourth porous foam type metal layer 11 and the fifth porous foam type metal layer 12 have the same thickness, a second center line is formed at the junction of the fourth porous foam type metal layer 11 and the fifth porous foam type metal layer 12, and the average porosity of the fourth porous foam type metal layer 11 is smaller than the average porosity of the fifth porous foam type metal layer 12.
The heat exchanger can be flexibly arranged according to heat exchange requirements of different positions, and the heat exchange efficiency of the heat exchanger is further improved.
In some embodiments, a sheet structure 13 of the same material as the porous foam type metal 2 is disposed between the pipe 1 and the porous foam type metal 2.
The porous foam metal 2 and the sheet structure 13 are made of the same material, so that the skeleton of the porous foam metal 2 is in full contact with the sheet structure 13 during welding, and the false welding can be avoided; in addition, when the material of the sheet structure 13 is the same as that of the pipeline 1, the contact surfaces of the sheet structure and the pipeline are both planes, so that full contact is facilitated, and the welding difficulty and the contact thermal resistance are reduced.
In some embodiments, the pipe 1 is a round pipe, a flat pipe, an oval pipe, or the like.
The heat exchanger can be flexibly arranged according to circulating media, and the heat exchange efficiency of the heat exchanger is further improved.
The invention also provides an air conditioner which comprises the heat exchanger.
It is easily understood by those skilled in the art that the above-described modes can be freely combined and superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (18)
1. A heat exchanger, comprising: the heat exchanger comprises a plurality of pipelines (1) and porous foam type metals (2), wherein the pipelines (1) are communicated with an external refrigerant pipeline, the porous foam type metals (2) are filled between the pipelines (1), and the pores of the two porous foam type metals (2) are used for circulating media for exchanging heat with the pipelines (1).
2. The heat exchanger according to claim 1, wherein the headers include a first header (3) and a second header (6), the first header (3) and the second header (6) are communicated through a plurality of the pipes (1), and the first header (3) or the second header (6) is communicated with an external refrigerant pipeline through two refrigerant pipe joints (4).
3. The heat exchanger according to claim 2, further comprising a spacer (5), wherein the spacer (5) divides the first header (3) and the second header (6) into a plurality of header units (7) corresponding to each other, and each header unit (7) on the first header (3) or the second header (6) is communicated with an external refrigerant pipeline through two refrigerant pipe joints (4).
4. The heat exchanger according to claim 1, characterized in that the porous foam type metal (2) is welded on the pipe (1).
5. The heat exchanger according to claim 1, characterized in that the duct (1) and the porous foam type metal (2) are both made of a metal or non-metal material having thermal conductivity.
6. The heat exchanger according to claim 1, characterized in that the pipe (1) and the porous foam type metal (2) are both made of copper, aluminum or an alloy material.
7. The heat exchanger according to claim 1, wherein the shape of pores of the cross section of the porous foam type metal (2) is any one of a circle, an ellipse, and a polygon.
8. The heat exchanger according to any of claims 1 to 7, characterized in that the average porosity of the cross section of the porous cellular metal (2) is the same both in the height direction of the porous cellular metal (2) and in the direction of the medium flow.
9. The heat exchanger according to claims 1 to 7, characterized in that the height direction centre line of the porous foam type metal (2) is a first centre line, from which the average porosity of the cross section of the porous foam type metal (2) decreases linearly or non-linearly on both sides in the height direction, the average porosity of the cross section of the porous foam type metal (2) being the same in the direction of flow of the medium.
10. The heat exchanger according to claim 9, characterized in that the average porosity of the porous foam type metal (2) cross section is reduced from 98% to 80%.
11. The heat exchanger according to any one of claims 1 to 7, wherein the height direction center line of the porous foam type metal (2) is a first center line, and the average porosity of the cross section of the porous foam type metal (2) decreases linearly or nonlinearly from the first center line in the height direction and increases linearly or nonlinearly in the direction in which the medium flows.
12. The heat exchanger according to claim 11, characterized in that the average porosity of the cross section of the porous foam type metal (2) decreases from 98% to 80% from the centerline of the porous foam type metal (2) on both sides in the height direction, and the average porosity of the cross section of the porous foam type metal (2) increases from 89% to 92% in the direction of the medium flow.
13. The heat exchanger according to any of claims 1 to 7, characterized in that the porous foam type metal (2) comprises at least a first porous foam type metal layer (8), a second porous foam type metal layer (9) and a third porous foam type metal layer (10) arranged in this order from top to bottom in the height direction of the layers of the porous foam type metal (2).
14. The heat exchanger according to claim 13, characterized in that the average porosity of the first porous foamed metal layer (8) is equal to the average porosity of the third porous foamed metal layer (10), the average porosity of the first porous foamed metal layer (8) being smaller than the average porosity of the second porous foamed metal layer (9).
15. The heat exchanger according to any of claims 1 to 7, characterized in that the porous foamed metal (2) comprises at least a fourth porous foamed metal layer (11) and a fifth porous foamed metal layer (12) arranged in sequence in the direction of flow of the medium, the fourth porous foamed metal layer (11) and the fifth porous foamed metal layer (12) being of equal thickness, the junction of the fourth porous foamed metal layer (11) and the fifth porous foamed metal layer (12) forming a second centre line, the average porosity of the fourth porous foamed metal layer (11) being smaller than the average porosity of the fifth porous foamed metal layer (12).
16. The heat exchanger according to claim 1, characterized in that a sheet-like structure (13) of the same material as the porous foam type metal is arranged between the pipe (1) and the porous foam type metal (2).
17. The heat exchanger according to claim 1, characterized in that the pipe (1) is a round, flat or oval pipe.
18. An air conditioner, characterized by comprising the heat exchanger of any one of 1-17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422970.7A CN114111115A (en) | 2021-11-26 | 2021-11-26 | Heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111422970.7A CN114111115A (en) | 2021-11-26 | 2021-11-26 | Heat exchanger and air conditioner |
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| Publication Number | Publication Date |
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| CN114111115A true CN114111115A (en) | 2022-03-01 |
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| CN202111422970.7A Pending CN114111115A (en) | 2021-11-26 | 2021-11-26 | Heat exchanger and air conditioner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944740A (en) * | 2021-03-22 | 2021-06-11 | 西安工业大学 | Air-conditioning temperature zone layered type variable porosity honeycomb structure heat regenerator |
| CN115235271A (en) * | 2022-07-29 | 2022-10-25 | 西安热工研究院有限公司 | Compact heat exchanger based on porous medium runner |
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| CN106969545A (en) * | 2017-05-22 | 2017-07-21 | 珠海格力电器股份有限公司 | Microchannel heat exchanger and heat pump water heater |
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| CN112944740A (en) * | 2021-03-22 | 2021-06-11 | 西安工业大学 | Air-conditioning temperature zone layered type variable porosity honeycomb structure heat regenerator |
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| CN103256757A (en) * | 2013-03-28 | 2013-08-21 | 广东美的电器股份有限公司 | Heat exchanger and air conditioner |
| CN103486777A (en) * | 2013-09-23 | 2014-01-01 | 浙江大学 | Regeneration-type variable-porosity heat regenerator for low temperature refrigerator |
| CN104964486A (en) * | 2015-03-16 | 2015-10-07 | 清华大学 | Heat exchanger suitable for fluid phase change on outer side |
| JP2017143094A (en) * | 2016-02-08 | 2017-08-17 | 日立化成株式会社 | Heat sink, thermoelectric conversion module, method of manufacturing heat sink |
| CN106969545A (en) * | 2017-05-22 | 2017-07-21 | 珠海格力电器股份有限公司 | Microchannel heat exchanger and heat pump water heater |
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Cited By (3)
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| CN112944740A (en) * | 2021-03-22 | 2021-06-11 | 西安工业大学 | Air-conditioning temperature zone layered type variable porosity honeycomb structure heat regenerator |
| CN112944740B (en) * | 2021-03-22 | 2022-05-20 | 西安工业大学 | Air-conditioning temperature zone layered type variable porosity honeycomb structure heat regenerator |
| CN115235271A (en) * | 2022-07-29 | 2022-10-25 | 西安热工研究院有限公司 | Compact heat exchanger based on porous medium runner |
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