CN210004844U

CN210004844U - Fin heat exchanger

Info

Publication number: CN210004844U
Application number: CN201920335564.9U
Authority: CN
Inventors: 郭伟明
Original assignee: Zhuhai Dun'an Thermal Engineering Technology Co Ltd
Current assignee: Zhuhai Dun'an Thermal Engineering Technology Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-01-31
Anticipated expiration: 2029-03-14

Abstract

The utility model discloses a finned heat exchanger, including many heat exchange tubes, and cup joint in the multirow fin of heat exchange tube, multirow fin interval set up and respectively with the heat exchange tube contact cooperation, the fin has a plurality of V type portions, wherein every along the air flow direction V type portion all includes convex parts and the second convex part that links to each other, convex part with the second convex part is formed with the contained angle, it is protruding to be provided with bridge type on convex part and the second convex part of V type portion respectively, the utility model discloses at the during operation, the air can form the turbulent flow on the fin to this heat exchange efficiency who improves this finned heat exchanger can compensate uneven because the heat transfer that the amount of wind inequality caused, and then has solved and has caused the overheated defect of subcooling by the uneven distribution of fan amount of wind, improves heat transfer efficiency, and heat transfer performance is stable, simultaneously resources are saved.

Description

Fin heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger is relevant, especially relate to kinds of fin heat exchangers.

Background

The fin heat exchanger is heat exchange devices which are most used in types of gas and liquid heat exchangers, wherein fins are important components of the fin heat exchanger, and the heat exchange surface area of the heat exchange tube is increased by the fins, so that the heat exchange efficiency of the corresponding fin heat exchanger is improved.

At present, the fins applied to the existing fin heat exchanger are usually set to be types of fins, and particularly, the fins on the fins can be set to be corrugated fins, windowing fins or flat fins according to the use requirements.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide kinds of fin heat exchangers to solve the technical problems in the prior art.

The type fin heat exchanger comprises a plurality of heat exchange tubes and a plurality of rows of fins sleeved on the heat exchange tubes, wherein the fins are arranged at intervals and are respectively in contact fit with the heat exchange tubes, the fins are provided with a plurality of V-shaped parts along the air flowing direction, each V-shaped part comprises a convex part and a second convex part which are connected, an included angle is formed between the convex part and the second convex part, and bridge-shaped protrusions are respectively arranged on the convex part and the second convex part of each V-shaped part.

As a preferable aspect of the present invention, the bridge-shaped protrusion is provided on the th convex part and/or the second convex part in a longitudinal direction of the V-shaped part.

As a preferable aspect of the present invention, the bridge-shaped protrusion is provided on the th convex part and/or the second convex part in a lateral direction of the V-shaped part.

Preferably, at least bridge-shaped protrusions are provided on the th protrusion and/or the second protrusion of the V-shaped portion.

As a preferable aspect of the present invention, an included angle formed by the th protruding part and the second protruding part is 130 ° to 145 °.

As the preferred scheme of the utility model, along the air flow direction, finned heat exchanger includes the multirow fin, just the sheet type of multirow fin is different.

As a preferable aspect of the present invention, rows or a plurality of rows of the plurality of rows of fins have the V-shaped portion, and the remaining rows or a plurality of rows of the plurality of rows of fins are flat sheets or corrugated sheets.

As the preferred scheme of the utility model, be provided with on the plain film and the ripple piece bridge type is protruding.

As a preferable embodiment of the present invention, the width of the bridge-shaped protrusion on the fin is the same.

As the preferred scheme of the utility model, on the fin the bellied height of bridge type is the same, just the bellied height of bridge type is 0.7mm-2 mm.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the fin heat exchanger provided by the utility model can make the air form turbulent flow on the fins when the fin heat exchanger works through the reasonable structure arrangement of the fins, thereby improving the heat exchange efficiency of the fin heat exchanger, compensating the uneven heat exchange caused by uneven air quantity, further solving the defect of supercooling overheating caused by uneven air quantity distribution of the fan, improving the heat exchange transmission efficiency, having stable heat exchange performance and saving resources; meanwhile, due to the structural arrangement of the V-shaped part, condensed water can be discharged conveniently, and the requirement of high fin distance between two adjacent fins of the heat exchange tube can be met.

Drawings

Fig. 1 is a front view of a fin provided by an embodiment of the present invention .

Fig. 2 is a partial schematic view of the V-shaped portion of the fin of fig. 1.

Wherein, 10, fins, 11, V-shaped parts, 12, bridge-shaped bulges, 101, th bulges, 102, second bulges.

Detailed Description

The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of , but not all embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The utility model discloses embodiment provides a fin heat exchanger, including many heat exchange tubes, and cup joint in the multirow fin 10 of heat exchange tube, multirow fin 10 interval set up and respectively with the cooperation is contacted to the heat exchange tube, with this realization on the fin heat exchanger mutual assembly between heat exchange tube and the fin 10.

Referring to fig. 1 and 2, a fin 10 of the fin heat exchanger of the present embodiment is provided with a plurality of V-shaped portions 11 along a flow direction of a heat exchange medium, wherein each V-shaped portion 11 includes a -th protrusion 101 and a second protrusion 102 connected to each other, an included angle is formed at a contact portion of the first protrusion 101 and the second protrusion 102, and bridge-shaped protrusions 12 are respectively provided on the first protrusion 101 and the second protrusion 102 of the V-shaped portion 11, in the present embodiment, the included angle formed by the first protrusion 101 and the second protrusion 102 is 130 ° to 145 °.

In the present embodiment, the V-shaped portion 11 is formed on the fin 10 by stamping, and the bridge-shaped protrusion 12 is also formed on the th protrusion 101 and the second protrusion 102 of the V-shaped portion 11 by stamping, so that the fin 10 of the present embodiment can be specifically prepared times on the same set of dies, thereby facilitating the production of the fin 10 and reducing the processing difficulty.

Wherein the bridge-type protrusions 12 are disposed on the th protrusion 101 and the second protrusion 102 along the longitudinal direction of the V-shaped portion 11, that is, the bridge-type protrusions 12 of the present embodiment are specifically disposed on the inclined surfaces of the th protrusion 101 and the second protrusion 102, of course, the bridge-type protrusions 12 of the present embodiment may also be disposed on the th protrusion 101 and the second protrusion 102 along the lateral direction of the V-shaped portion 11, that is, the present embodiment may also dispose the bridge-type protrusions 12 on the opposite surfaces or the opposite surfaces of two adjacent V-shaped portions 11.

In the present embodiment, the widths of the bridge-shaped protrusions 12 on the fins are the same, the heights of the bridge-shaped protrusions 12 on the fins are the same, and the heights of the bridge-shaped protrusions 12 are 0.7mm to 2 mm.

In the present embodiment, the number of the bridge-shaped protrusions 12 provided on the first convex portion 101 and the second convex portion 102 on the V-shaped portion 11 is set to be at least , specifically, the number may be specifically set according to the length of the end surface for assembling the bridge-shaped protrusion 12 on each of the second convex portion 101 and the second convex portion 102, and the length of the corresponding bridge-shaped protrusion 12.

In the present embodiment, the V-shaped portions 11 are distributed over the fins 10, that is, only fin types are provided on the fins of the present embodiment, it is understood that a person skilled in the art may use the fin heat exchanger with multiple rows of fins 10 having different fin types along the air flow direction, specifically, or more of the multiple rows of fins have the V-shaped portions 11, and the remaining or more of the multiple rows of fins are flat or corrugated sheets, and steps are performed on the flat and corrugated sheets on which the bridge-shaped protrusions 12 are provided.

It should be noted that the wind resistance of the bridge-shaped protrusion 12 to the air is the largest, so that the bridge-shaped protrusion 12 provided on the fin 10 can cut off the th protrusion 101 and the second protrusion 102 of the V-shaped portion 11 along the direction of the air, that is, the bridge-shaped protrusion 12 divides the th protrusion 101 and the second protrusion 102 on the V-shaped portion 11 into multiple sections and performs heat exchange respectively, thereby improving the heat exchange efficiency, and the V-shaped portion 11 can increase the turbulent intensity of the air by changing the flowing direction of the air, thereby increasing the length of the air flow passage and forming turbulent flow, thereby achieving sufficient mixing of the air, and the wind resistance pressure corresponding to the V-shaped portion 11 is small.

Therefore, when the fin heat exchanger provided by the utility model works, air can form turbulent flow on the fins, so that the heat exchange efficiency of the fin heat exchanger is improved, the uneven heat exchange caused by uneven air volume can be compensated, the defect of supercooling overheating caused by uneven air volume distribution of a fan is further solved, the heat exchange transmission efficiency is improved, the heat exchange performance is stable, and resources are saved; meanwhile, due to the structural arrangement of the V-shaped part, condensed water can be discharged conveniently, and the requirement of high fin distance between two adjacent fins of the heat exchange tube can be met.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

The fin heat exchanger comprises a plurality of heat exchange tubes and a plurality of rows of fins sleeved on the heat exchange tubes, wherein the fins are arranged at intervals and are respectively in contact fit with the heat exchange tubes, the fin heat exchanger is characterized in that the fins are provided with a plurality of V-shaped parts along the air flowing direction, each V-shaped part comprises a convex part and a second convex part which are connected, an included angle is formed between the convex part and the second convex part, and bridge-shaped bulges are respectively arranged on the convex part and the second convex part of each V-shaped part.
2. The fin heat exchanger according to claim 1, wherein the bridge-type protrusion is provided on the -th convex portion and/or the second convex portion in the longitudinal direction of the V-shaped portion.
3. The fin heat exchanger according to claim 1, wherein the bridge-type protrusion is provided on the -th convex portion and/or the second convex portion in a lateral direction of the V-shaped portion.
4. The fin heat exchanger according to claim 1, wherein at least bridge-type protrusions are provided on the th convex portion and/or the second convex portion of the V-shaped portion.
5. The finned heat exchanger of claim 1, wherein the included angle formed by the th projection and the second projection is 130 ° -145 °.
6. The finned heat exchanger of claim 1, wherein: the fin heat exchanger comprises a plurality of rows of fins along the air flowing direction, and the fin plates of the rows of fins are different in sheet type.
7. The finned heat exchanger of claim 6 wherein or more of the rows of fins have the V-shaped portions and the remaining or more of the rows of fins are flat or corrugated.
8. The finned heat exchanger of claim 7, wherein: the flat sheet and the corrugated sheet are provided with the bridge-shaped bulges.
9. The finned heat exchanger of claim 1, wherein: the width of the bridge-shaped bulges on the fins is the same.
10. The finned heat exchanger of claim 1, wherein: the height of the bridge-shaped bulges on the fins is the same, and the height of the bridge-shaped bulges is 0.7mm-2 mm.