CN111504117A - Heat exchange fin set, heat exchanger and air conditioner - Google Patents
Heat exchange fin set, heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN111504117A CN111504117A CN202010338304.4A CN202010338304A CN111504117A CN 111504117 A CN111504117 A CN 111504117A CN 202010338304 A CN202010338304 A CN 202010338304A CN 111504117 A CN111504117 A CN 111504117A
- Authority
- CN
- China
- Prior art keywords
- fins
- row
- heat exchange
- airflow
- along
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a heat exchange fin group, a heat exchanger and an air conditioner, wherein the heat exchange fin group comprises: the fin structure comprises a first row of fins and a second row of fins, wherein the first row of fins and the second row of fins are sequentially arranged along the airflow direction, first pipe holes are formed in the first row of fins, second pipe holes are formed in the second row of fins, the positions between the second pipe holes and two adjacent first pipe holes are opposite along the airflow flowing direction, the structure between the first row of fins and the second row of fins is a structure which is disconnected at intervals, the structure between the first row of fins and the second row of fins is opposite to the second pipe holes along the airflow flowing direction, and the structure between the first row of fins and the second row of fins is a structure which is connected. The invention can effectively cut off the heat influence effect of the first row of fins on the largest area of the second row of fins, so that the influence of the downstream row of fins on the upstream row of fins is smaller, and the situation that the heat exchange efficiency of the rear row of fins is greatly reduced due to the heat influence can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of heat exchangers, in particular to a heat exchange fin set, a heat exchanger and an air conditioner.
Background
The air conditioner internal unit fin mainly is double structure, as shown in fig. 1, the fin connection of two rows of structures is as an organic whole, and this kind of structural feature can cause from the in-process of air inlet to air-out, and the copper pipe and the fin of air inlet section can carry out the heat transfer earlier, because two rows of fin connection are as an organic whole, can produce heat conduction heat transfer between the two, and the heat affected zone can lead to the fact the influence to the fin heat transfer of one section back, leads to the fin of back row and the heat exchange efficiency of air current to reduce by a wide.
The invention provides a heat exchange fin group, a heat exchanger and an air conditioner, which are researched and designed for solving the technical problems that the heat exchange efficiency of rear-row fins is greatly reduced due to the existence of a heat affected zone between two or more rows of fins in the prior art.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the heat exchange efficiency of the rear row of fins is greatly reduced due to the existence of a heat affected zone between two or more rows of fins in the prior art, so that the heat exchange fin group, the heat exchanger and the air conditioner are provided.
In order to solve the above problems, the present invention provides a heat exchange fin set, comprising:
a first row of fins and a second row of fins, which are arranged in sequence along the airflow direction, the second row of fins are arranged on the downstream side of the first row of fins along the flow direction of the air flow, at least one first pipe hole capable of accommodating a heat exchange pipe is arranged on the first row of fins, the second row of fins are provided with at least one second tube hole capable of accommodating a heat exchange tube to penetrate through, the second tube hole is opposite to the position between two adjacent first tube holes along the flowing direction of airflow, and the structure between the first row of fins and the second row of fins, which is opposite to the first pipe hole along the airflow flowing direction, is a spaced-apart structure, and the structure between the first row of fins and the second row of fins, which is opposite to the second pipe hole along the airflow flowing direction, is a connected structure.
Preferably, the connecting structure is a connecting area, the extension of the connecting area along the direction perpendicular to the airflow direction is the width of the connecting area, and the width of the connecting area is 1.5-3.5 mm.
Preferably, the interval-disconnected structure is formed by cutting two rows of fins which are connected with each other and are opposite to the first tube hole.
Preferably, a cut edge is formed by the cutting, the heat exchange fin group comprises a first side surface and a second side surface which are opposite, and the cut edge tilts towards the direction of the first side surface or tilts towards the direction of the second side surface; the first pipe hole is provided with a flanging, and the flanging is positioned on the first side surface; and/or the second pipe hole is provided with a flange, and the flange is positioned on the first side surface.
Preferably, at least one first bridge piece is further arranged between two adjacent first tube holes on the first row of fins; and/or at least one second bridge piece is arranged between two adjacent second pipe holes on the second row of fins.
Preferably, the extending direction of the first bridge piece is perpendicular to the flowing direction of the airflow; and/or the extension direction of the second bridge piece is perpendicular to the flowing direction of the airflow.
Preferably, the number of the first bridge pieces is multiple, and the multiple first bridge pieces are arranged side by side and arranged in parallel along the airflow flowing direction; and/or the second bridge pieces are arranged side by side, and the arrangement direction of the second bridge pieces is arranged in parallel along the airflow flowing direction.
Preferably, the first bridge piece is of a segmented structure at a position upstream of the first pipe hole in the airflow direction, and the segmented spaced positions are opposite to the center of the first pipe hole in the airflow direction; and/or, the second bridge piece is of a sectional structure at the position of the second pipe hole upstream along the airflow flowing direction, and the position at intervals is opposite to the center of the second pipe hole along the airflow flowing direction; and/or the second bridge piece is of an integrated structure at the position of the second pipe hole downstream along the airflow direction.
The invention also provides a heat exchanger which comprises the heat exchange fin group.
The invention also provides an air conditioner which comprises the heat exchanger.
The heat exchange fin group, the heat exchanger and the air conditioner provided by the invention have the following beneficial effects:
according to the invention, the first connecting parts (namely the opposite connecting positions of the heat exchange tube holes on the upstream side) of the two rows of fins are arranged to be disconnected at intervals, and the first connecting parts belong to the positions where the heat transfer of the airflow upstream heat exchange tube is large, namely the areas where the upstream fins have large heat influence on the downstream fins are cut off, so that the heat influence effect of the first rows of fins on the largest areas of the second rows of fins can be effectively cut off, the influence of the upstream fins on the downstream fins is small, the situation that the heat exchange efficiency of the rear fins is greatly reduced due to the heat influence can be effectively prevented, and the heat exchange efficiency of the downstream fins is effectively improved; and the second connecting part (namely the connecting position opposite to the heat exchange tube hole at the downstream side) is connected with the two rows of fins, and the position belongs to a region with small heat influence of the fins at the upstream side, so that the air flow at the upstream side can be ensured to smoothly reach the heat exchange tube holes of the fins at the downstream side for heat exchange, the heat exchange efficiency of the fins at the downstream side is improved, and the problems of difficult processing and the like caused by the full cutting of the connecting position of the two rows of fins can be avoided.
Drawings
FIG. 1 is a top view of a heat exchange fin pack of the present invention;
FIG. 2 is a partially enlarged structural view of portion A in FIG. 1;
FIG. 3 is a left side view block diagram (first embodiment of the trim) of the heat exchanging fin group of FIG. 1;
fig. 4 is a left side view structural view (second embodiment of the trimming) of the heat exchanging fin group in fig. 1.
The reference numerals are represented as:
100. a fin set; 1. a first row of fins; 11. a first tube hole; 12. a first bridge piece; 2. a second row of fins; 21. a second tube hole; 22. a second bridge piece; 3. a spaced apart structure; 31. trimming; 4. a connected structure; 51. a first side surface; 52. a second side.
Detailed Description
As shown in fig. 1-4, the present invention provides a heat exchange fin set, comprising:
a first row of fins 1 and a second row of fins 2, the first row of fins 1 and the second row of fins 2 are sequentially arranged along the airflow direction, the second row of fins 2 is arranged on the downstream side of the first row of fins 1 along the airflow direction, at least one first tube hole 11 capable of accommodating a heat exchange tube is arranged on the first row of fins 1, at least one second tube hole 21 capable of accommodating a heat exchange tube is arranged on the second row of fins 2, the second tube hole 21 is opposite to the position between two adjacent first tube holes 11 along the airflow direction, and the structure between the first row of fins 1 and the second row of fins 2 opposite to the first tube holes 11 along the airflow direction is a structure 3 with a gap (the structure with a gap comprises a structure with only one gap or a structure with more than two gaps, two or more gaps are arranged at intervals), and the structure between the first row of fins 1 and the second row of fins 2, which is opposite to the second tube hole 21 in the flowing direction of the airflow, is a connected structure 4.
According to the invention, the first connecting parts (namely the opposite connecting positions of the heat exchange tube holes on the upstream side) of the two rows of fins are arranged to be disconnected at intervals, and the first connecting parts belong to the positions where the heat transfer of the airflow upstream heat exchange tube is large, namely the areas where the upstream fins have large heat influence on the downstream fins are cut off, so that the heat influence effect of the first rows of fins on the largest areas of the second rows of fins can be effectively cut off, the heat influence of the downstream fins on the upstream fins is small, the situation that the heat exchange efficiency of the rear fins is greatly reduced due to the heat influence can be effectively prevented, and the heat exchange efficiency of the downstream fins is effectively improved; and the second connecting part (namely the connecting position opposite to the heat exchange tube hole at the downstream side) is connected with the two rows of fins, and the position belongs to a region with small heat influence of the fins at the upstream side, so that the air flow at the upstream side can be ensured to smoothly reach the heat exchange tube holes of the fins at the downstream side for heat exchange, the heat exchange efficiency of the fins at the downstream side is improved, and the problems of difficult processing and the like caused by the full cutting of the connecting position of the two rows of fins can be avoided.
Preferably, the connecting structure 4 is a connecting area, the extension of the connecting area along the direction perpendicular to the airflow direction is the width of the connecting area, and the width of the connecting area is 1.5-3.5 mm. This is a preferred width dimension of the joined structure of the present invention, and exceeding the width of the region is an excessive strength requirement, and being smaller than the width causes deformation due to insufficient strength, i.e., the strength requirement can be secured to prevent deformation, and the thermal influence can be minimized.
Preferably, the spaced-apart structure 3 is formed by cutting two rows of fins in a manner that the two rows of fins are connected with each other and are opposite to the first tube hole 11. This is a preferable form of the intermittent structure of the present invention, that is, the intermittent structure can be effectively formed by cutting the two rows of fins (not all but only at a position opposite to the first tube hole) at the joint of the two rows of fins, so that the thermal influence between the two rows of fins is reduced.
Preferably, the cut edge 31 is formed by the cutting, the heat exchange fin group includes a first side surface 51 and a second side surface 52 which are opposite, and the cut edge 31 is tilted towards the direction of the first side surface 51 or tilted towards the direction of the second side surface 52; the first pipe hole 11 is provided with a flanging, and the flanging is positioned on the first side surface 51; and/or the second pipe hole 21 has a flange, and the flange is located on the first side surface 51. This is a preferable configuration of the cutting method of the present invention, that is, the cutting is performed to form the cut edge, that is, one side is cut and the other side is tilted upward or downward, and the structure of the cut edge can provide a certain guiding function to the air flow, so that the air flow enters the cut gap through the cut edge and flows out, thereby reducing the thermal influence on the fins in the downstream row and further improving the effect of reducing the thermal influence.
Preferably, at least one first bridge piece 12 is further arranged between two adjacent first tube holes 11 on the first row of fins 1; and/or at least one second bridge piece 22 is arranged between two adjacent second pipe holes 21 on the second row of fins 2. The invention also improves the heat exchange efficiency (by enhancing the turbulent flow effect between air flows) of the first row of fins and the heat exchange efficiency of the second row of fins respectively through the structural forms of the first bridge piece and the second bridge piece.
Preferably, the first bridge piece 12 extends in a direction perpendicular to the direction of the airflow; and/or the second bridge piece 22 extends in a direction perpendicular to the direction of the airflow. The first bridge piece and the second bridge piece are respectively arranged perpendicular to the flow direction of the airflow, so that the contact area between the first bridge piece and the airflow is larger, and the heat exchange efficiency of the fin is further improved.
Preferably, there are a plurality of the first bridge pieces 12, and the plurality of the first bridge pieces 12 are arranged side by side and arranged in parallel along the airflow direction; and/or the number of the second bridge pieces 22 is multiple, and the second bridge pieces 22 are arranged side by side and arranged in parallel along the airflow flowing direction. The first bridge pieces are distributed side by side and arranged side by side in parallel along the airflow flowing direction, so that airflow sequentially passes through the distributed first bridge pieces to be sequentially subjected to heat exchange, the heat exchange efficiency between the first row of fins and the airflow is further improved, and the second bridge pieces are similarly distributed side by side and arranged side by side in parallel along the airflow flowing direction, so that the airflow sequentially passes through the distributed second bridge pieces to be sequentially subjected to heat exchange, and the heat exchange efficiency between the second row of fins and the airflow is further improved.
Preferably, the first bridge piece 12 is of a segmented structure at a position upstream of the first pipe hole 11 in the airflow direction, and the segmented spaced positions are opposite to the center of the first pipe hole 11 in the airflow direction; and/or, the second bridge piece 22 is of a sectional structure at the position upstream of the second pipe hole 21 along the airflow direction, and the position spaced in the sectional structure is opposite to the center of the second pipe hole 21 along the airflow direction; and/or, the second bridge piece 22 is of an integral structure at a position downstream of the second pipe hole 21 in the airflow direction. The first bridge piece is arranged at the upstream position of the first pipe hole and is of a sectional structure, and the sectioned part is opposite to the center of the first pipe hole, so that airflow can smoothly flow to the first pipe hole, the airflow and the heat exchange pipe can fully exchange heat, and the heat exchange effect of the first row of fins is further improved; the second bridge piece at the upstream position of the second tube hole is of a sectional structure, and the sectioned part is right opposite to the center of the second tube hole, so that the airflow can smoothly flow to the second tube hole, the airflow and the heat exchange tube can fully exchange heat, and the heat exchange effect of the second row of fins is further improved; the second bridge piece at the downstream position of the second tube hole is arranged to be of an integrated structure, so that the air flow can be effectively prevented from flowing out of the fins, and the air flow is reserved on the fins as far as possible, the heat exchange time is prolonged, and the heat exchange effect is further improved.
The invention also provides a heat exchanger which comprises the heat exchange fin group.
1. The heat exchange fin group adopts a virtual cutting mode to cut off the first row of fins and the second row of fins and interrupt the heat conduction among the heat fins.
2. The design is carried out according to the windward direction, the cutting is carried out at the position with the largest heat influence, the connection processing is carried out at the position with smaller influence, and the heat exchange is improved.
1. The scheme mainly aims to solve the problem that when double rows and three rows of fins are used, after the copper pipes and the fins at the air inlet position exchange heat preferentially, a heat affected zone affects the next row of fins. The influence of the first row of fins on the second row of fins is reduced by adopting a new structure;
2. this embodiment realizes blocking of the heat affected zone of the fin without cutting to 1+ 1.
Has the advantages that:
1. reducing the effect of the heat affected zone of double rows of fins
2. The heat exchange efficiency of the double rows of fins is improved;
3. the processing efficiency is not influenced.
The invention also provides an air conditioner which comprises the heat exchanger.
The invention cuts off the fins by adopting a virtual cutting mode, thereby realizing the cutting-off effect of the first row and the second heat extraction affected zone of the double-row fins. So as to improve the unit heat exchange efficiency of the fin.
In a particular embodiment, the first row refers to the windward side of the fins and the second row refers to the leeward side of the fins.
Specific cut-off position elucidation:
the location of the cut should be the location of greatest thermal influence, i.e. the area of the copper tubes of the first row of fins extending leeward and around it, as shown by the spaced apart structures 3 in fig. 1 and 2, i.e. the cut-off area. And the connection area is the windward area of the copper tubes of the subsequent row of fins, i.e. inside the area of the connected structure 4 shown in fig. 1 and 2.
The scheme can be suitable for double-row heat exchanger fins and also can be suitable for three-row and other multi-row heat exchanger fins.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A heat exchange fin group is characterized in that: the method comprises the following steps:
the heat exchanger comprises a first row of fins (1) and a second row of fins (2), wherein the first row of fins (1) and the second row of fins (2) are sequentially arranged along the air flow direction, the second row of fins (2) are arranged on the downstream side of the first row of fins (1) along the air flow direction, at least one first tube hole (11) capable of accommodating a heat exchange tube is formed in the first row of fins (1), at least one second tube hole (21) capable of accommodating the heat exchange tube is formed in the second row of fins (2), the second tube hole (21) is opposite to the position between two adjacent first tube holes (11) along the air flow direction, and the structure between the first row of fins (1) and the second row of fins (2) opposite to the first tube hole (11) along the air flow direction is a structure (3) with interval disconnection, the structure between the first row of fins (1) and the second row of fins (2) opposite to the second tube holes (21) in the direction of flow of the air stream is a connected structure (4).
2. The heat exchange fin pack according to claim 1, wherein:
the connecting structure (4) is a connecting area, the extending size of the connecting area along the direction perpendicular to the airflow direction is the width of the connecting area, and the width of the connecting area is 1.5-3.5 mm.
3. The heat exchange fin group according to claim 1 or 2, wherein:
the interval broken structure (3) is formed by connecting two rows of fins and cutting the position of the two rows of fins opposite to the first pipe hole (11).
4. The heat exchange fin set according to claim 3, wherein:
forming a cutting edge (31) in the cutting mode, wherein the heat exchange fin group comprises a first side surface (51) and a second side surface (52) which are opposite, and the cutting edge (31) tilts towards the direction of the first side surface (51) or tilts towards the direction of the second side surface (52); the first pipe hole (11) is provided with a flanging, and the position of the flanging is positioned on the first side surface (51); and/or the second pipe hole (21) is provided with a flanging, and the flanging is positioned on the first side surface (51); and/or the integrated double-row fin is integrally formed.
5. The heat exchange fin pack according to any one of claims 1 to 4, wherein:
at least one first bridge piece (12) is arranged between two adjacent first pipe holes (11) on the first row of fins (1); and/or at least one second bridge piece (22) is arranged between two adjacent second pipe holes (21) on the second row of fins (2).
6. The heat exchange fin set according to claim 5, wherein:
the extending direction of the first bridge piece (12) is vertical to the flowing direction of the airflow; and/or the second bridge piece (22) extends in a direction perpendicular to the direction of the airflow.
7. The heat exchange fin set according to claim 5, wherein:
the number of the first bridge pieces (12) is multiple, the first bridge pieces (12) are arranged side by side, and the arrangement direction of the first bridge pieces is parallel to the airflow flowing direction; and/or the second bridge pieces (22) are arranged in parallel, and the arrangement direction of the second bridge pieces (22) is parallel to the airflow flowing direction.
8. The heat exchange fin set according to claim 5, wherein:
the first bridge piece (12) is of a sectional structure at a position upstream of the first pipe hole (11) in the airflow flowing direction, and the sectional and spaced positions are opposite to the center of the first pipe hole (11) in the airflow flowing direction; and/or, the second bridge piece (22) is of a sectional structure at the position of the second pipe hole (21) upstream along the airflow flowing direction, and the position spaced in a sectional way is opposite to the center of the second pipe hole (21) along the airflow flowing direction; and/or the second bridge piece (22) is of an integrated structure at the position of the second pipe hole (21) downstream along the airflow flowing direction.
9. A heat exchanger, characterized by: comprising the set of heat exchange fins of any one of claims 1 to 8.
10. An air conditioner, characterized in that: comprising the heat exchanger of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338304.4A CN111504117A (en) | 2020-04-26 | 2020-04-26 | Heat exchange fin set, heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010338304.4A CN111504117A (en) | 2020-04-26 | 2020-04-26 | Heat exchange fin set, heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111504117A true CN111504117A (en) | 2020-08-07 |
Family
ID=71867758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010338304.4A Pending CN111504117A (en) | 2020-04-26 | 2020-04-26 | Heat exchange fin set, heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111504117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665224A (en) * | 2021-01-15 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Air conditioner |
-
2020
- 2020-04-26 CN CN202010338304.4A patent/CN111504117A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665224A (en) * | 2021-01-15 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100089557A1 (en) | Finned tube heat exchanger | |
| JPH09133488A (en) | Heat exchanger with fin | |
| CN106091782A (en) | A kind of axially through H type finned tube and heat-exchanging tube bundle | |
| EP2314973B1 (en) | Fin-tube heat exchanger | |
| WO2022205765A1 (en) | Compact heat exchanger and asymmetric airfoil heat exchange plate thereof | |
| CN111504117A (en) | Heat exchange fin set, heat exchanger and air conditioner | |
| CN212253800U (en) | Heat exchange fin set, heat exchanger and air conditioner | |
| WO2007139137A1 (en) | Heat exchanger | |
| EP2843345B1 (en) | Fin-tube heat exchanger and refrigeration cycle device using same | |
| CN207050199U (en) | A kind of air conditioner heat radiator device | |
| CN106705731A (en) | Axial locking plate type pin-fin type finned tube | |
| CN204806924U (en) | Fin and heat exchanger that has this fin | |
| CN201615720U (en) | Single-row flat finned tube of blind window | |
| CN108731508B (en) | Capillary heat exchanger | |
| JP3769179B2 (en) | Finned heat exchanger | |
| CN111623660A (en) | Bridge type heat exchanger fin, heat exchanger and air conditioner | |
| CN215912397U (en) | High-temperature-resistant efficient radiator | |
| CN102135388A (en) | Triangular curved vortex generator type circular tube fin heat exchanger | |
| CN106121803A (en) | Radiator | |
| JPS633185A (en) | Finned heat exchanger | |
| CN205690750U (en) | Heat exchanger and air-conditioning | |
| CN213238590U (en) | Heat exchange sheet for gas water heater and gas water heater | |
| CN218511564U (en) | Oil cooler oblique windowing fin structure | |
| CN213120253U (en) | Heat exchange tube structure for small-diameter heat exchanger | |
| CN215638996U (en) | Heat exchanger and heat exchange system with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |