CN218469644U - Heat exchange fin and heat exchanger comprising same - Google Patents
Heat exchange fin and heat exchanger comprising same Download PDFInfo
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- CN218469644U CN218469644U CN202221672735.5U CN202221672735U CN218469644U CN 218469644 U CN218469644 U CN 218469644U CN 202221672735 U CN202221672735 U CN 202221672735U CN 218469644 U CN218469644 U CN 218469644U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a heat transfer fin and contain its heat exchanger. The heat transfer fin includes: the heat exchange tube heat exchanger comprises a substrate, a first heat exchanger tube and a second heat exchanger tube, wherein a first hole group and a second hole group are arranged along a first direction of the substrate, each heat exchanger tube comprises heat exchange tube mounting holes which are distributed on the substrate at intervals along a second direction, and the first hole group and the second hole group are both provided with a plurality of heat exchange tube mounting holes; the first direction is consistent with the inflow direction of the flue gas; two sides of the second hole group are provided with first heat exchange areas, a second heat exchange area is arranged between the heat exchange pipe mounting holes in the first hole group, and a third heat exchange area is arranged between the two hole groups; the three heat exchange areas are provided with a plurality of flow guide structures which are used for guiding the flue gas flowing into the heat exchange fins to the corresponding heat exchange tube mounting holes. Set up a plurality of water conservancy diversion structures through setting up between the heat exchange tube mounting hole to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through near the heat exchange tube and carry out the heat transfer, eliminate the heat transfer blind spot of heat exchange tube, promote unit area's heat exchange efficiency.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer, especially, relate to a heat transfer fin and contain its heat exchanger.
Background
The existing gas water heater generally adopts a finned heat exchanger to exchange heat, a plurality of heat exchange tube mounting holes used for mounting heat exchange tubes are arranged on fins of the finned heat exchanger, smoke passes through the fins and exchanges heat with the heat exchange tubes on the heat exchange tube mounting holes, the smoke easily passes through an area between two adjacent heat exchange tubes, the contact time of the smoke and the heat exchange fins is short, and the heat exchange efficiency of the heat exchange fins is low. In addition, the increase of the number of the heat exchange tubes not only can increase the cost of the whole water heater, but also can make the processing technology of the heat exchanger more complex.
In addition, because the flue gas leads to the heat dispersion from the high regional water conservancy diversion of bottom heat to the low region of top heat for more invalid heat transfer area has on the heat transfer fin, thereby the flue gas produces local high temperature in the heat transfer fin and leads to the inhomogeneous problem of heat transfer area distribution, causes the damage to the heat transfer fin easily, reduces heat transfer fin's life.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a heat exchanger fin and contain its heat exchanger in order to overcome among the prior art heat exchange tube in large quantity and the adjacent heat exchange tube between heat exchange efficiency poor and the inhomogeneous defect of heat transfer.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a heat exchange fin comprising:
the heat exchanger comprises a substrate, a first heat exchanger tube and a second heat exchanger tube, wherein a first hole group and a second hole group are arranged in the first direction of the substrate, the first hole group comprises a plurality of first heat exchanger tube mounting holes, and the second hole group comprises a plurality of second heat exchanger tube mounting holes; the first heat exchange tube mounting holes and the second heat exchange tube mounting holes are distributed on the substrate at intervals along a second direction;
wherein the first direction is consistent with the direction of the flue gas flowing into the heat exchange fins;
two sides of the second hole group are provided with first heat exchange areas, a second heat exchange area is arranged between two adjacent first heat exchange pipe mounting holes in the first hole group, and a third heat exchange area is arranged between the first hole group and the second hole group;
the first heat exchange area, the second heat exchange area and the third heat exchange area are all provided with a plurality of flow guide structures; the flow guide structure is used for guiding the flue gas flowing into the heat exchange fins to the corresponding first heat exchange tube mounting holes and second heat exchange tube mounting holes.
In this technical scheme, through set up a plurality of water conservancy diversion structures between the heat exchange tube mounting hole, can be with the flue gas from the high regional water conservancy diversion of bottom heat to the low region of top heat to for the flue gas provides more suitable runner and velocity of flow, and with flue gas water conservancy diversion near the heat exchange tube, can guarantee that the flue gas fully flows through near the heat exchange tube and carries out the heat transfer, eliminate the invalid heat transfer area of heat exchange tube as far as possible, make heat distribution even, promote unit area's heat exchange efficiency.
Preferably, the first heat exchange area is provided with a first flow guide structure, the first flow guide structure comprises a hollow part and a first flow guide part, the first flow guide part is arranged on one side of the hollow part close to the second heat exchange tube mounting hole, and the first flow guide part is used for guiding the smoke passing through the first flow guide part towards the direction of the first heat exchange tube mounting hole adjacent to the first flow guide part.
In this technical scheme, heat transfer fin sets up fretwork portion in first heat transfer region and has removed invalid heat transfer area effectively, remains more effective heat transfer area as far as possible, in material saving, also can effectively alleviate heat exchanger's whole weight, reduces gas heater complete machine assembly degree of difficulty and manufacturing cost. In addition, one side that the hollowed-out part is close to the second heat exchange tube mounting hole is provided with a flow guide part, so that the flue gas can be conveniently guided to the position close to the corresponding heat exchange tube mounting hole, and the heat exchange efficiency of a unit area is improved.
Preferably, the first flow guiding portion is a flow guiding plate, the flow guiding plate extends from one side of the hollow portion close to the second heat exchanging hole and along a direction perpendicular to the substrate, and the flow guiding plate is arranged in an inclined manner.
In the technical scheme, the guide plate is arranged on one side close to the second heat exchange hole, and the guide part is arranged on one side of the hollow part close to the second heat exchange tube mounting hole, so that the flue gas can be guided to the position close to the corresponding heat exchange tube mounting hole, and the heat exchange efficiency of unit area is improved.
Preferably, the plurality of first heat exchange tube mounting holes and the plurality of second heat exchange tube mounting holes are distributed in a staggered manner; the second heat exchange area is provided with a second flow guide structure, the second flow guide structure comprises a flow guide plate and a cavity enclosed by the flow guide plate and the base plate, and the positions of the flow guide plate and the cavity correspond to the first heat exchange tube mounting hole, so that the flue gas passes through the bottom of the first hole group and is guided to the direction of the second hole group.
In this technical scheme, first heat exchange tube mounting hole and the crisscross distribution of second heat exchange tube mounting hole make second water conservancy diversion structure shelter from the interval department at first heat exchange tube mounting hole and the second heat exchange tube mounting hole along the first direction to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through heat exchange tube and fin periphery and carries out the heat transfer, eliminate the heat transfer dead zone of heat exchange tube, promote unit area's heat exchange efficiency.
Preferably, the third heat exchange area is provided with a third flow guide structure and a fourth flow guide structure, the third flow guide structure and the fourth flow guide structure are symmetrically arranged along the center line of the substrate, and the flue gas is divided by the third flow guide structure and the fourth flow guide structure and is guided to the direction of the first hole group.
In the technical scheme, the third flow guide structure and the fourth flow guide structure are symmetrically arranged along the center line of the substrate, so that the heat exchange effect of the flue gas along the first hole group to the second hole group can be improved, the heat exchange strength of the second hole group is enhanced, the heat exchange is uniform, and the utilization rate of the flue gas is improved.
Preferably, the third flow guide structure includes a flow guide hole and a second flow guide portion, and the second flow guide portion is disposed in a circumferential direction of the flow guide hole and extends in a direction perpendicular to the substrate surface.
In this technical scheme, the flue gas can be according to the structure surface in water conservancy diversion hole, and the heat transfer effect has been strengthened to the second heat transfer hole that corresponds of flow direction after being shunted.
Preferably, the fourth flow guide structure includes a notch and a rib extending outward from the notch, the extending direction of the rib faces the second hole group, and the rib is disposed at an angle to the base plate.
In this technical scheme, the flange can block high temperature flue gas, and the flue gas forms the vortex when this flange, avoids the flue gas directly towards, promotes heat exchange efficiency. And when the flue gas passes through the flanges, the flue gas is divided and then washed towards two sides, and the heat exchange is strengthened by washing the heat exchange pipes at the two sides.
Preferably, each heat exchange tube mounting hole is provided with a first flange, and the first flange is located in the circumferential direction of the heat exchange tube mounting hole and extends in a direction perpendicular to the surface of the base plate.
In the technical scheme, the base plate can be reinforced by flanging the heat exchange tube mounting hole in the circumferential direction, so that the parts assembled by the heat exchange tube and the heat exchange fins are stable, the contact area between the heat exchange tube and the heat exchange fins can be increased, and the heat exchange efficiency is improved. In addition, when the heat exchange fins are applied to the heat exchanger, the distance between the adjacent heat exchange fins can be increased due to the arrangement of the first flanging.
Preferably, a plurality of second flanges are further arranged in the circumferential direction of the first flange, the second flanges extend in a direction parallel to the surface of the base plate, and the second flanges are located at the top of the first flange and are evenly arranged at intervals in the circumferential direction of the first flange.
In the technical scheme, the heat exchange tube and the heat exchange fins can be stably and reliably assembled and connected.
The utility model also provides a heat exchanger, including above-mentioned arbitrary heat transfer fin, heat exchanger includes a plurality of heat exchange tubes, and is a plurality of the heat exchange tube is installed and is being corresponded first heat exchange tube mounting hole with in the second heat exchange tube mounting hole.
In this technical scheme, the heat exchanger that contains above-mentioned heat transfer fin has following effect: through setting up a plurality of water conservancy diversion structures between the heat exchange tube mounting hole to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through heat exchange tube and fin periphery and carries out the heat transfer, eliminate the heat transfer blind spot of heat exchange tube, promote unit area's heat exchange efficiency.
Preferably, a plurality of heat exchange tubes form a heat exchange loop, the heat exchange loop is provided with a water inlet and a water outlet, and the water inlet and the water outlet are both positioned in the first hole group or the second hole group;
or one of the water inlet and the water outlet is positioned in the first hole group, and the other is positioned in the second hole group.
In the technical scheme, when the water inlet is arranged on the first hole group (namely the lower part of the fins) of the heat exchange fins, the water outlet pipe walking mode is favorable for reducing the water boiling sound in the water pipe in the heat exchange process. When the water inlet is arranged on the second hole group (namely the upper part of the fin) of the heat exchange fin, the heat exchange efficiency of the heat exchanger is improved, the generation of condensed water in the heat exchange process can be reduced, and different water inlet and outlet pipe passing requirements can be met.
The utility model discloses an actively advance the effect and lie in: through setting up a plurality of water conservancy diversion structures between the heat exchange tube mounting hole to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through heat exchange tube and fin periphery and carries out the heat transfer, eliminate the heat transfer blind spot of heat exchange tube, promote unit area's heat exchange efficiency.
Drawings
Fig. 1 is the structural schematic diagram of the heat exchange fin in the embodiment of the present invention.
Fig. 2 is a schematic structural view of the circulation of the flue gas in the heat exchange fins in the embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second flow guiding structure in an embodiment of the present invention.
Fig. 4a to 4d are schematic structural diagrams of the tube routing manner of the heat exchange tube in the embodiment of the present invention.
Description of reference numerals:
First direction A
Second direction B
First heat exchange tube mounting hole 11
Second heat exchange pipe mounting hole 12
First flow guiding structure 2
The first diversion part 22
Second flow guiding structure 3
Third flow guiding structure 4
Second flow guide part 42
Fourth flow guiding structure 5
Water inlet D1
Water outlet D2
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to fig. 3, a heat exchange fin 100 is divided into an air inlet end and an air outlet end along the flowing direction of an air flow, and the contour of the air inlet end matches the contour of the air outlet end; the heat exchange fin 100 includes:
the heat exchanger comprises a substrate 10, wherein a first hole group and a second hole group are arranged in a first direction A of the substrate 10, each hole group comprises heat exchange tube mounting holes which are distributed on the substrate 10 at intervals in a second direction B, the first hole group comprises a plurality of first heat exchange tube mounting holes 11, and the second hole group comprises a plurality of second heat exchange tube mounting holes 12; the plurality of first heat exchange tube mounting holes 11 and the plurality of second heat exchange tube mounting holes 12 are spaced apart from each other in the second direction B on the substrate 10.
Wherein, the first direction a is consistent with the direction of the flue gas flowing into the heat exchange fins 100;
two sides of the second hole group are provided with first heat exchange areas, a second heat exchange area is arranged between two adjacent first heat exchange pipe mounting holes 11 in the first hole group, and a third heat exchange area is arranged between the first hole group and the second hole group;
the first heat exchange area, the second heat exchange area and the third heat exchange area are all provided with a plurality of flow guide structures; the flow guide structure is used for guiding the flue gas flowing into the heat exchange fin 100 to the corresponding first heat exchange tube mounting hole 11 and second heat exchange tube mounting hole 12.
Through set up a plurality of water conservancy diversion structures between the heat exchange tube mounting hole, can be with the flue gas from the high regional water conservancy diversion of bottom heat to the low region of top heat to for the flue gas provides more suitable runner and velocity of flow, and with flue gas water conservancy diversion to near heat exchange tube, can guarantee that the flue gas fully flows through near the heat exchange tube and carry out the heat transfer, eliminate the invalid heat transfer area of heat exchange tube as far as possible, make heat distribution even, promote the heat exchange efficiency of unit area.
In specific implementation, the number of the first heat exchange tube mounting holes 11 is 3, the number of the second heat exchange tube mounting holes 12 is 2, and the first heat exchange tube mounting holes 11 and the second heat exchange tube mounting holes 12 are distributed in a staggered manner in the first direction a.
In other alternative embodiments, the number of the hole groups and the number of the heat exchange tube mounting holes included in each hole group are not particularly limited, and the number of the hole groups and the number of the heat exchange tube mounting holes included in each hole group may be increased or decreased one by one along the first direction a.
In the present embodiment, the first direction a is perpendicular to the second direction B. In other alternative embodiments, the first direction a and the second direction B may also be disposed at an angle, and may be adaptively adjusted according to the structure and shape of the heat exchange fin 100 and the heat exchanger, which is not specifically limited herein.
In this embodiment, the heat exchange substrate 10 is made of stainless steel, has the characteristics of corrosion resistance and scale resistance, and is more suitable for the operation with small fire in a long-term preheating state without affecting the water quality flowing through the gas water heater. Compared with the heat exchanger made of phosphorus deoxidized copper, the stainless steel heat exchanger with the same volume has lower production cost.
In this embodiment, the first heat exchange area is provided with a first flow guide structure 2, the first flow guide structure 2 includes a hollow portion 21 and a first flow guide portion 22, the first flow guide portion 22 is disposed on one side of the hollow portion 21 close to the second heat exchange tube mounting hole 12, and the first flow guide portion 22 is used for guiding the smoke passing through the first flow guide portion towards the direction of the first heat exchange tube mounting hole 11 adjacent to the first flow guide portion. The heat exchange fins 100 are provided with the hollow parts 21 around the second hole group, so that invalid heat exchange areas are effectively removed, more effective heat exchange areas are reserved as far as possible, the overall weight of the heat exchanger can be effectively reduced while materials are saved, and the overall assembly difficulty and the production cost of the gas water heater are reduced. In addition, one side of the hollow part 21 close to the second heat exchange tube mounting hole 12 is provided with a flow guide part which is convenient for guiding the flue gas to the position close to the corresponding heat exchange tube mounting hole, so that the heat exchange efficiency of unit area is improved.
It should be noted that, in other alternative embodiments, the hollow portion 21 may also be formed by a plurality of hole structures, as long as the ineffective heat exchange area can be reduced, which is not specifically limited herein.
Specifically, the first guiding portion 22 is a guiding plate 31, the hollow portion 21 is a through hole structure, the guiding plate 31 extends from one side of the through hole close to the second heat exchanging hole and along a direction perpendicular to the substrate 10, and the guiding plate 31 is disposed obliquely. The guide plate 31 is arranged on one side close to the second heat exchange hole, and a guide part is arranged on one side of the hollow part 21 close to the second heat exchange tube mounting hole 12 so as to guide the flue gas to the position close to the corresponding heat exchange tube mounting hole, so that the heat exchange efficiency of unit area is improved.
It should be noted that, in other alternative embodiments, the inclination angle of the flow guide plate 31 may be flexibly designed or selected according to the actual use condition, and may be greater than 0 ° and less than 90 ° (may be 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, 70 °, and 80 °), as long as it is favorable for guiding the flue gas on both sides toward the second heat exchange tube mounting hole 12 close to the adjacent second heat exchange tube, which is not specifically limited herein.
In this embodiment, the second heat exchange area is provided with a second flow guiding structure 3, the second flow guiding structure 3 includes a flow guiding plate 31, the substrate 10 is provided with a cavity 32 corresponding to the position of the flow guiding plate 31 and having a shape matched with the shape of the flow guiding plate 31 projected onto the substrate, and the positions of the flow guiding plate 31 and the cavity 32 correspond to the first heat exchange tube mounting hole 11, so that the flue gas is guided to the direction of the second hole group through the cavity 32 along the bottom of the first hole group. In other alternative embodiments, the cavity 32 may also be a cavity formed by the baffle 31 and the substrate 10, as long as the cavity is capable of allowing a portion of the flue gas to flow through the cavity 32 to the direction of the second hole group, which is not specifically limited herein.
First heat exchange tube mounting hole 11 and the crisscross interval department that distributes of second heat exchange tube mounting hole 12 make second water conservancy diversion structure 3 shelter from at first heat exchange tube mounting hole 11 and second heat exchange tube mounting hole 12 along first direction A to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through heat exchange tube and fin periphery and carry out the heat transfer, eliminate the heat transfer blind spot of heat exchange tube, promote unit area's heat exchange efficiency.
In this embodiment, the third heat exchange area is provided with a third flow guide structure 4 and a fourth flow guide structure 5, the third flow guide structure 4 and the fourth flow guide structure 5 are symmetrically arranged along the center line of the substrate 10, and the flue gas is divided by the third flow guide structure 4 and the fourth flow guide structure 5 and guided to the direction of the first hole group. The third flow guide structures 4 and the fourth flow guide structures 5 are symmetrically arranged along the center line of the substrate 10, so that the heat exchange effect of the flue gas from the first hole group to the second hole group can be improved, the heat exchange strength of the second hole group is enhanced, the heat exchange is uniform, and the utilization rate of the flue gas is improved.
Specifically, the third flow guide structure 4 includes a flow guide hole 41 and a second flow guide portion 42, and the second flow guide portion 42 is disposed in a circumferential direction of the flow guide hole 41 and extends in a direction perpendicular to the surface of the substrate 10. The flue gas can be according to the structure surface of water conservancy diversion hole 41, and the second heat transfer hole that flows to corresponding after being shunted has strengthened the heat transfer effect. In the present embodiment, the diversion hole 41 is circular, and the second diversion part 42 is the diversion plate 31. In other alternative embodiments, the shape of the diversion hole 41 may also be an ellipse or another streamline structure, as long as the function of splitting the flue gas can be achieved, which is not limited herein.
The fourth baffle structure 5 comprises a cut 52 and a rib 51 extending outwardly from the cut 52, the rib 51 extending in a direction towards the second hole set, the rib 51 being arranged at an angle to the base plate 10. The flange 51 can block high-temperature flue gas, and the flue gas forms the vortex when passing through this flange, avoids the flue gas directly towards, promotes heat exchange efficiency. And, when the flue gas passes flange 51, the flue gas is shunted and is washed to both sides, through washing the heat exchange tube reinforcing heat transfer of both sides.
The angle can be flexibly designed or selected according to the actual use condition, and can be larger than 0 degrees and smaller than 90 degrees (10 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, 70 degrees and 80 degrees). And is not particularly limited herein.
In summary, the flow direction of the flue gas is described in detail below with reference to fig. 2:
the flue gas is guided to the area with low heat at the top from the area with high heat at the bottom of the heat exchange fin through a plurality of guide structures. Specifically, when the flue gas flows through the second heat exchange area, on one hand, the flue gas is divided and guided by the streamline structure of the first heat exchange tube mounting hole 11, and on the other hand, the flue gas is guided to the direction closer to the first heat exchange tube mounting hole 11 by the second flow guide structure 3. It should be noted that fig. 2 is only an exemplary illustration of the flowing direction of the flue gas, and actually, the flue gas can also flow through the cavity 32 in the second flow guiding structure and is transferred to the direction of the first hole group of the heat exchange fin 100. When the flue gas flows through the third heat exchange area, the flue gas is divided by the third flow guide structure 4 and the fourth flow guide structure 5 and is guided to the direction of the second hole group. At this time, a part of the flue gas flows through the first heat exchange area, the other part of the flue gas flows through the space between the second heat exchange tube mounting holes 12, and the flue gas in the first heat exchange area is guided to the vicinity of the adjacent second heat exchange tube mounting holes 12 by the first guide structure (i.e., the guide plate 31 obliquely arranged towards the direction of the second heat exchange tube mounting holes 12) so as to improve the heat exchange efficiency per unit area.
In the present embodiment, each heat exchange tube mounting hole is provided with the first flange 110, and the first flange 110 is located in the circumferential direction of the heat exchange tube mounting hole and extends in the direction perpendicular to the surface of the base plate 10.
The base plate can be reinforced by flanging the circumferential direction of the heat exchange tube mounting hole, so that not only can parts assembled by the heat exchange tube and the heat exchange fins 100 be stable, but also the contact area between the heat exchange tube and the heat exchange fins 100 can be increased, and the heat exchange efficiency is improved. In addition, when the heat exchange fins are applied to the heat exchanger, the distance between the adjacent heat exchange fins can be increased due to the arrangement of the first flanging.
The first flanging 110 is further provided with a plurality of second flanging 111 in the circumferential direction, the second flanging 111 extends along the direction parallel to the surface of the base plate 10, and the second flanging 111 is located at the top of the first flanging 110 and is evenly arranged along the circumferential direction of the first flanging 110 at intervals. The heat exchange tube and the heat exchange fins 100 can be stably and reliably assembled and connected.
In the present embodiment, the edges of the first and second heat exchange pipe mounting holes 11 and 12 are provided with the welding parts 6, and the welding parts 6 are used to weld the heat exchange pipes to the heat exchange pipe mounting holes. Welding parts 6 of welding rods are designed at the edges of the heat exchange tube mounting holes, so that the heat exchange tubes are conveniently welded to the heat exchange fins 100 in sequence, stress points of the heat exchange tubes are consistent, the directions of the heat exchange tubes during thermal expansion or contraction are consistent, torsion during heating or cooling is prevented, and the whole appearance is neat and attractive.
Example 2
The present embodiment provides a heat exchanger including the heat exchange fin 100 of embodiment 1, the heat exchanger including: the heat exchanger comprises a shell 7 and a plurality of heat exchange tubes 8, wherein heat exchange fins 100 are uniformly arranged in the shell 7 at intervals, and the plurality of heat exchange tubes 8 are arranged in corresponding first heat exchange tube mounting holes 11 and second heat exchange tube mounting holes 12.
A plurality of heat exchange tubes form a heat exchange loop, the heat exchange loop is provided with a water inlet D1 and a water outlet D2, and four tube passing modes are provided with reference to fig. 4a to 4D, wherein the water inlet D1 and the water outlet D2 are both positioned in a first hole group or a second hole group; or one of the water inlet D1 and the water outlet D2 is positioned in the first hole group, and the other is positioned in the second hole group.
When the water inlet is located in the first hole group (i.e., located at the lower portion of the fins) of the heat exchange fins 100, the water outlet pipe-passing manner is favorable for reducing the water boiling sound in the water pipe during the heat exchange process. When the water inlet is located in the second hole group (i.e. located at the upper part of the fin) of the heat exchange fin 100, the pipe passing mode is favorable for improving the heat exchange efficiency of the heat exchanger, and meanwhile, the generation of condensed water in the heat exchange process can be reduced.
In summary, the heat exchange fins 100 and the heat exchangers provided in embodiments 1 and 2 have the following advantages: through setting up a plurality of water conservancy diversion structures between the heat exchange tube mounting hole to for the flue gas provides more suitable runner and velocity of flow, guarantee that the flue gas fully flows through heat exchange tube and fin periphery and carries out the heat transfer, eliminate the heat transfer blind spot of heat exchange tube, promote unit area's heat exchange efficiency.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (11)
1. A heat exchange fin, comprising:
the heat exchanger comprises a substrate, a first heat exchange tube and a second heat exchange tube, wherein a first hole group and a second hole group are arranged in the first direction of the substrate, the first hole group comprises a plurality of first heat exchange tube mounting holes, and the second hole group comprises a plurality of second heat exchange tube mounting holes; the first heat exchange tube mounting holes and the second heat exchange tube mounting holes are distributed on the substrate at intervals along a second direction;
wherein the first direction is consistent with the direction of the flue gas flowing into the heat exchange fins;
two sides of the second hole group are provided with first heat exchange areas, a second heat exchange area is arranged between two adjacent first heat exchange pipe mounting holes in the first hole group, and a third heat exchange area is arranged between the first hole group and the second hole group;
the first heat exchange area, the second heat exchange area and the third heat exchange area are all provided with a plurality of flow guide structures; the flow guide structure is used for guiding the flue gas flowing into the heat exchange fins to the corresponding first heat exchange tube mounting holes and second heat exchange tube mounting holes.
2. The heat exchange fin as claimed in claim 1, wherein the first heat exchange area is provided with a first flow guide structure comprising a hollowed portion and a first flow guide portion, the first flow guide portion being provided at a side of the hollowed portion close to the second heat exchange tube mounting hole, the first flow guide portion being adapted to guide the flue gas passing therethrough toward the first heat exchange tube mounting hole adjacent thereto.
3. The heat exchange fin as claimed in claim 2, wherein the first flow guide part is a flow guide plate extending from a side of the hollowed part adjacent to the second heat exchange tube mounting hole in a direction perpendicular to the base plate, and the flow guide plate is disposed obliquely.
4. The heat exchange fin as claimed in claim 2, wherein a plurality of the first heat exchange tube mounting holes are distributed alternately with a plurality of the second heat exchange tube mounting holes;
the second heat exchange area is provided with a second flow guide structure, the second flow guide structure comprises a flow guide plate and a cavity enclosed by the flow guide plate and the base plate, and the positions of the flow guide plate and the cavity correspond to the first heat exchange tube mounting hole, so that smoke passes through the bottom of the first hole group and is guided to the direction of the second hole group.
5. The heat exchange fin according to claim 2, wherein the third heat exchange area is provided with a third flow guide structure and a fourth flow guide structure, the third flow guide structure and the fourth flow guide structure are symmetrically arranged along the central line of the base plate, and the flue gas is divided by the third flow guide structure and the fourth flow guide structure and is guided to the direction of the first hole group.
6. The heat exchange fin as recited in claim 5, wherein the third flow guide structure comprises a flow guide hole and a second flow guide portion disposed in a circumferential direction of the flow guide hole and extending in a direction perpendicular to the surface of the base plate.
7. The heat exchange fin of claim 5, wherein the fourth flow directing structure comprises a notch and a rib extending outwardly from the notch, the rib extending in a direction toward the second hole set, the rib being disposed at an angle to the base plate.
8. The heat exchange fin as recited in claim 1, wherein each heat exchange tube mounting hole is provided with a first burring which is located in a circumferential direction of the heat exchange tube mounting hole and extends in a direction perpendicular to the base plate surface.
9. The heat exchange fin as recited in claim 8 wherein a plurality of second flanges are further provided along the circumferential direction of said first flange, said second flanges extend along a direction parallel to the surface of said base, said second flanges are located on the top of said first flange and are spaced along the circumferential direction of said first flange.
10. A heat exchanger comprising the heat exchange fin as recited in any one of claims 1 to 9, the heat exchanger comprising a plurality of heat exchange tubes mounted in the corresponding first and second heat exchange tube mounting holes.
11. The heat exchanger of claim 10, wherein a plurality of said heat exchange tubes form a heat exchange circuit having a water inlet and a water outlet, said water inlet and said water outlet each being located in either the first or second set of holes;
or one of the water inlet and the water outlet is positioned in the first hole group, and the other is positioned in the second hole group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221672735.5U CN218469644U (en) | 2022-06-29 | 2022-06-29 | Heat exchange fin and heat exchanger comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221672735.5U CN218469644U (en) | 2022-06-29 | 2022-06-29 | Heat exchange fin and heat exchanger comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218469644U true CN218469644U (en) | 2023-02-10 |
Family
ID=85136306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221672735.5U Active CN218469644U (en) | 2022-06-29 | 2022-06-29 | Heat exchange fin and heat exchanger comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218469644U (en) |
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2022
- 2022-06-29 CN CN202221672735.5U patent/CN218469644U/en active Active
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