CN215810411U - Rectangular wing vortex generator type circular tube type heat exchanger with punching holes - Google Patents
Rectangular wing vortex generator type circular tube type heat exchanger with punching holes Download PDFInfo
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- CN215810411U CN215810411U CN202121217247.0U CN202121217247U CN215810411U CN 215810411 U CN215810411 U CN 215810411U CN 202121217247 U CN202121217247 U CN 202121217247U CN 215810411 U CN215810411 U CN 215810411U
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- fins
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- wing vortex
- vortex generator
- holes
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Abstract
The utility model relates to a rectangular wing vortex generator type circular tube type heat exchanger with punched holes, which comprises fins and a circular tube, wherein the fins are provided with circular holes for penetrating the fins, the circular tube is used for serially connecting each layer of fins through the circular holes, the fins form a rectangular wing vortex generator and a rectangular hole through punching, the rectangular wing vortex generator is positioned on one side close to the inflow direction of fluid on the fins, the rectangular hole is positioned on one side far away from the inflow direction of the fluid on the fins, the right center of the rectangular wing vortex generator is provided with the punched holes, and the punched holes can generate central jet flow; each layer of fins on the circular tube keeps equal distance with fins on adjacent layers, and gaps exist among the rectangular wing vortex generators on the fins on the adjacent layers; the heat exchange efficiency is improved under the condition that the production process is not increased; because the radiating efficiency is high, under the condition of the same radiating requirement, the size of the heat exchanger can be reduced to a certain extent, so that the aims of reducing the production cost and reducing the energy consumption are fulfilled.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a rectangular wing vortex generator type circular tube type heat exchanger with a punched hole.
Background
A heat exchanger, also known as a heat exchanger, is an energy efficient device capable of transferring heat between two or more fluids having different temperatures. Heat exchangers are an indispensable component in many industrial fields, such as petroleum, power, food and others. Therefore, how to enhance the heat transfer of the heat exchanger is worth intensive research.
In general, heat transfer enhancement techniques are classified into three types, i.e., active methods, passive methods, and composite methods. The active and passive methods, also known as active and passive techniques, are divided according to whether additional power sources are needed. The composite method is a combination of an active method and a passive method, such as a twisted tape, a helical tape, a wound coil, and the like. The passive method enhanced heat transfer technology does not need to add a new power source, is convenient to control, and has higher economical efficiency, so the passive method enhanced heat transfer technology is more and more applied to the field of enhanced heat transfer.
Most passive methods improve heat transfer performance by adding turbulent disturbances in the flow field. Common passive enhanced heat transfer techniques include textured surfaces, vortex generators (e.g., delta wing, cuboid, and cube). Baffles and the like have obstacles of different geometries or roughnesses. Among all passive enhanced heat transfer techniques, the application of vortex generators is the most widespread.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art, and provides the rectangular wing vortex generator type circular tube type heat exchanger with the punched holes.
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:
the utility model discloses a rectangular wing vortex generator type circular tube type heat exchanger with punched holes, which comprises fins and a circular tube, wherein the fins are provided with circular holes for penetrating the fins, the circular tube is used for serially connecting each layer of fins through the circular holes, the fins form a rectangular wing vortex generator and a rectangular hole through punching, the rectangular wing vortex generator is positioned on one side close to the inflow direction of fluid on the fins, the rectangular hole is positioned on one side far away from the inflow direction of the fluid on the fins, the right center of the rectangular wing vortex generator is provided with the punched holes, and the punched holes can generate central jet flow; and each layer of fins on the circular tube keeps equal spacing with the fins on the adjacent layers, and gaps exist among the rectangular wing vortex generators on the fins on the adjacent layers.
The shape of the punched hole can be circular, oval, rectangular and triangular.
The rectangular wing vortex generators are positioned on the rear side of the circular tube in the fluid inflow direction, and the adjacent rectangular wing vortex generators are symmetrically distributed on two sides of the circular tube by taking the circular tube as an axis; the included angle between the perpendicular line from the bottom edge of the rectangular wing vortex generator to the circle center of the circular hole and the fluid inflow direction is 150-180 degrees, and the height H of the rectangular wing vortex generator is 0.5-0.7 times of the fin distance.
The ratio of the longitudinal center distance T of the two round holes to the diameter D of the round tube is 2-2.3: 1; the ratio of the transverse center distance N of the two round holes to the diameter D of the round tube is 1.5-1.8: 1.
the utility model has the beneficial effects that:
(1) the punching holes on the rectangular wing vortex generator can generate central jet flow along the incoming flow direction, the central jet flow can disperse the backflow area at the back of the rectangular wing, the backflow strength is greatly weakened, the heat exchange can be enhanced, and the flow resistance can be reduced;
(2) the utility model has simple structure, simple and convenient manufacturing process, easy installation and low cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
in the figure: 1. a fin; 11. a circular hole; 2. a circular tube; 3. a rectangular-shaped wing vortex generator; 31. punching; 4. a rectangular hole.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples, but not by way of limitation, with reference to fig. 1-2.
The utility model discloses a rectangular wing vortex generator type circular tube type heat exchanger with punched holes, which comprises a fin 1 and a circular tube 2, wherein a circular hole 11 for penetrating through the fin 1 is formed in the fin 1, the circular tube 2 is used for serially connecting each layer of fin 1 through the circular hole 11, the fin 1 forms a rectangular wing vortex generator 3 and a rectangular hole 4 through punching, the rectangular wing vortex generator 3 is positioned on one side close to the fluid inflow direction on the fin 1, the rectangular hole 4 is positioned on one side far away from the fluid inflow direction on the fin 1, a punched hole 31 is arranged at the center of the rectangular wing vortex generator 3, and the punched hole 31 can generate central jet flow; each layer of fins 1 on the circular tube 2 keeps equal distance with the adjacent layer of fins 1, and a gap exists between the rectangular vortex generators 3 on the adjacent layer of fins 1; the utility model improves the heat exchange efficiency under the condition of not increasing production procedures; because the radiating efficiency is high, under the condition of the same radiating requirement, the size of the heat exchanger can be reduced to a certain extent, so that the aims of reducing the production cost and reducing the energy consumption are fulfilled.
The shape of the punched hole 31 may be circular, oval, rectangular, and triangular.
The rectangular wing vortex generators 3 are positioned on the rear side of the circular tube 1 in the fluid inflow direction, and the adjacent rectangular wing vortex generators 3 are symmetrically distributed on two sides of the circular tube 2 by taking the circular tube 2 as an axis; the included angle between the perpendicular line from the bottom edge of the rectangular wing vortex generator 3 to the circle center of the circular hole 11 and the fluid inflow direction is 150-180 degrees, and the height H of the rectangular wing vortex generator 3 is 0.5-0.7 times of the fin spacing.
The ratio of the longitudinal center distance T of the two round holes 11 to the diameter D of the round tube 2 is 2-2.3: 1; the ratio of the transverse center distance N of the two round holes 11 to the diameter D of the round tube 2 is 1.5-1.8: 1.
the working principle is as follows:
when fluid passes through the heat exchanger along the incoming flow direction, the round tube 2, the fin 1 fixedly connected to the round tube 2 and the rectangular wing vortex generator 3 on the fin 1 can conduct heat in the round tube 1 to the fluid side outside the round tube 1, and heat convection is generated at the fluid side outside the tube to perform heat convection; on the other hand, the rectangular-shaped vortex generators 3 formed by punching the fins 1 break the boundary layer on the wall surface of the fins 1, and since a pressure difference exists between the front and rear ends of the rectangular-shaped vortex generators 3, vortices are generated near the rectangular-shaped vortex generators 3. And the punching hole 31 on the rectangular wing vortex generator 3 can generate central jet flow along the incoming flow direction, the central jet flow can disperse the backflow area at the back of the rectangular wing, the backflow strength is greatly weakened, the heat exchange can be enhanced, and the flow resistance can be reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (5)
1. The utility model provides a rectangle wing vortex generator formula pipe tube heat exchanger that area punched a hole which characterized in that: the fin comprises fins (1) and round pipes (2), round holes (11) used for penetrating through the fins (1) are formed in the fins (1), the round pipes (2) are connected with each layer of fins (1) in series through the round holes (11), the fins (1) form rectangular wing vortex generators (3) and rectangular holes (4) through stamping, the rectangular wing vortex generators (3) are located on one side close to the fluid inflow direction on the fins (1), the rectangular holes (4) are located on one side far away from the fluid inflow direction on the fins (1), punched holes (31) are formed in the center of the rectangular wing vortex generators (3), and the punched holes (31) can generate central jet flow; each layer of fins (1) on the circular tube (2) keeps equal distance with the adjacent layer of fins (1), and gaps exist among the rectangular wing vortex generators (3) on the adjacent layer of fins (1).
2. The rectangular-wing vortex generator type round tube heat exchanger with the punched holes as claimed in claim 1, wherein: the shape of the punched holes (31) may be circular, oval, rectangular and triangular.
3. The rectangular-wing vortex generator type round tube heat exchanger with the punched holes as claimed in claim 1, wherein: the rectangular wing vortex generators (3) are positioned on the rear side of the circular pipe (2) in the fluid inflow direction, and the adjacent rectangular wing vortex generators (3) are symmetrically distributed on two sides of the circular pipe (2) by taking the circular pipe (2) as an axis; the included angle between the perpendicular line from the bottom edge of the rectangular wing vortex generator (3) to the circle center of the round hole (11) and the fluid inflow direction is 150-180 degrees, and the height H of the rectangular wing vortex generator (3) is 0.5-0.7 times of the fin spacing.
4. The rectangular-wing vortex generator type round tube heat exchanger with the punched holes as claimed in claim 3, wherein: the ratio of the longitudinal center distance T of the two round holes (11) to the diameter D of the round tube (2) is 2-2.3: 1; the ratio of the transverse center distance N of the two round holes (11) to the diameter D of the round tube (2) is 1.5-1.8: 1.
5. the rectangular-wing vortex generator type round tube heat exchanger with the punched holes as claimed in claim 4, wherein: the ratio of the length L of the bottom edge of the rectangular wing vortex generator (3) to the height H of the rectangular wing vortex generator (3) is 2.5-3.1: 1, the ratio of the vertical distance P from the bottom edge of the rectangular wing vortex generator (3) to the circle center of the round hole (11) to the diameter D of the round pipe (2) is 1.2-1.5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121217247.0U CN215810411U (en) | 2021-06-02 | 2021-06-02 | Rectangular wing vortex generator type circular tube type heat exchanger with punching holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121217247.0U CN215810411U (en) | 2021-06-02 | 2021-06-02 | Rectangular wing vortex generator type circular tube type heat exchanger with punching holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215810411U true CN215810411U (en) | 2022-02-11 |
Family
ID=80174814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121217247.0U Expired - Fee Related CN215810411U (en) | 2021-06-02 | 2021-06-02 | Rectangular wing vortex generator type circular tube type heat exchanger with punching holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215810411U (en) |
-
2021
- 2021-06-02 CN CN202121217247.0U patent/CN215810411U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |