CN215373669U - Heat exchange tube internal device based on boundary layer destruction enhanced heat exchange - Google Patents
Heat exchange tube internal device based on boundary layer destruction enhanced heat exchange Download PDFInfo
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- CN215373669U CN215373669U CN202121134055.3U CN202121134055U CN215373669U CN 215373669 U CN215373669 U CN 215373669U CN 202121134055 U CN202121134055 U CN 202121134055U CN 215373669 U CN215373669 U CN 215373669U
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- outer spiral
- heat exchange
- boundary layer
- baffling
- spiral
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Abstract
An intra-heat-exchange-pipe device based on boundary layer destruction enhanced heat exchange comprises a first outer spiral, a second outer spiral, a first baffling rod and a second baffling rod. The utility model can adopt common casting process and 3D printing technique, with simple manufacture, while it sets the first and second outer spiral, to limit the heat or liquid flow, to improve the stay time of the fluid in the heat exchange tube, and improve the heat transfer effect, and it adds the first and second baffle rod, to improve the disturbance degree of the fluid, to reduce the boundary layer, and improve the stability between the first and second outer spiral, to avoid deformation.
Description
Technical Field
The utility model relates to the field of heat exchange pipe internal devices, in particular to a heat exchange pipe internal device for strengthening heat exchange based on boundary layer damage.
Background
Heat transfer is the process of energy exchange and transfer. Controllable heat transfer is realized without leaving the heat transfer device. Heat exchange equipment in the industrial fields of chemical industry, nuclear energy, aerospace and the like is widely used. These devices are not only critical to ensure the proper operation of the construction equipment, but also have an important proportion in terms of material and energy consumption throughout the construction. The most common heat exchange equipment in the industry is that the heat exchanger is designed reasonably so that the heat transfer efficiency is higher, and the cost is very important for saving. In order to improve the heat exchange performance, more effective heat transfer enhancement measures need to be taken.
The thermal resistance of convective heat transfer in the pipe is mainly concentrated in the heat transfer boundary layer near the pipe wall, and the larger the thickness of the boundary layer is, the higher the thermal resistance is. Therefore, the thickness of the boundary layer is reduced, the thermal resistance can be reduced, all mass points of the fluid are fully mixed, and the purpose of enhancing heat transfer is achieved. The insert acts as a turbulence within the conduit. It changes the flow track of the fluid in the pipe to promote the generation of secondary flow; increasing the disturbance of the fluid, and leading the central fluid to be replaced with the fluid on the pipe wall. The heat transfer coefficient is improved under the combined action of fluid division, boundary layer development damage, thermal resistance reduction and the like
However, the conventional interposer generally has a reinforcing effect and a simple structure.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides an apparatus for heat exchange tube capable of enhancing heat exchange based on boundary layer damage.
The utility model is realized in such a way that an intra-heat-exchange-pipe device for strengthening heat exchange based on boundary layer damage is constructed, and the device comprises a first outer spiral, a second outer spiral, a first baffling rod and a second baffling rod, wherein the first outer spiral and the second outer spiral are spirally wound mutually, the first baffling rod and the second baffling rod are arranged between the first outer spiral and the second outer spiral, and two ends of the first baffling rod and two ends of the second baffling rod are respectively connected with and support the first outer spiral and the second outer spiral.
Preferably, the first outer helix and the second outer helix have the same structure.
Preferably, the first outer helix and the second outer helix are of a double helix structure formed by 180 degrees around a central symmetry axis.
Preferably, the first and second baffle bars have the same structure.
Preferably, the first outer spiral and the second outer spiral are arranged in a manner of being perpendicular to each other between the adjacent first baffling rod and the adjacent second baffling rod.
Preferably, the specific length of the heat transfer insert can be machined according to actual needs.
The utility model has the following advantages: the utility model provides an intra-heat-exchange-pipe device for strengthening heat exchange based on boundary layer damage through improvement, and compared with the same type of equipment, the intra-heat-exchange-pipe device has the following improvements:
the advantages are that: the heat exchange tube device for strengthening heat exchange based on boundary layer damage can adopt a common casting process and a 3D printing technology, is simple and convenient to manufacture, is provided with the first outer spiral and the second outer spiral which are spirally wound with each other, and can better limit the flow of heat or liquid to be exchanged, so that the retention time of the fluid in the heat exchange tube is further prolonged, the heat transfer effect is strengthened, the first baffling rod and the second baffling rod are additionally arranged in the heat exchange tube device, the disturbance degree of the fluid is increased by means of the baffling rods, the boundary layer is further reduced, the stability between the first outer spiral and the second outer spiral is also enhanced, and the deformation is prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic side view of the present invention.
Wherein: a first external spiral-1, a second external spiral-2, a first baffling rod-3 and a second baffling rod-4.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 3, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an intraductal device of heat exchange based on boundary layer destruction intensification, including first outer spiral 1, second outer spiral 2, first baffling rod 3 and second baffling rod 4, first outer spiral 1 and second outer spiral 2 are spirally wound each other, first baffling rod 3 and second baffling rod 4 are arranged between first outer spiral 1 and second outer spiral 2, and both ends of first baffling rod 3 and second baffling rod 4 are respectively connected and support first outer spiral 1 and second outer spiral 2.
Furthermore, the first outer spiral 1 and the second outer spiral 2 are in the same structure and are matched with each other after being spirally wound, so that the effect is improved.
Furthermore, the first outer spiral 1 and the second outer spiral 2 are of a 180-degree double-spiral structure formed around the central symmetry axis, and can better limit the flow of the gas or liquid to be exchanged, thereby further increasing the retention time of the fluid in the heat exchange tube and enhancing the heat transfer effect.
Further, the first rod baffle 3 and the second rod baffle 4 have the same structure.
Furthermore, the adjacent first baffling rods 3 and second baffling rods 4 in the first outer spiral 1 and the second outer spiral 2 are arranged perpendicular to each other, so that the fluid disturbance degree is increased, the boundary layer is further reduced, the stability between the first outer spiral 1 and the second outer spiral 2 is improved, and the deformation is prevented.
The utility model provides an internal heat exchange tube device for strengthening heat exchange based on boundary layer damage through improvement, and the working principle is as follows;
firstly, the gas or liquid to be heat exchanged enters along the axial direction, and the flow of the heat exchange gas or liquid can be better limited after the first outer spiral 1 and the second outer spiral 2 are used simultaneously, so that the retention time of the fluid in the heat exchange tube is further prolonged, and the heat transfer effect is enhanced;
secondly, the first baffle rod 3 and the second baffle rod 4 are additionally arranged inside the first outer spiral 1 and the second outer spiral 2, the fluid disturbance degree can be increased by means of the first baffle rod 3 and the second baffle rod 4, so that the boundary layer is further reduced, and the double-spiral structure formed by the first outer spiral 1 and the second outer spiral 2 is placed in a pipe and is unstable and easy to deform, so that the shapes of the first outer spiral 1 and the second outer spiral 2 can be fixed by the additionally arranged first baffle rod 3 and the second baffle rod 4, the stability of the first outer spiral 1 and the second outer spiral 2 is improved, and the deformation is prevented;
thirdly, the structure of the utility model can limit the flow range when the fluid flows, so that the fluid can well flow along the spiral, and simultaneously can be disturbed with the baffle rod to form fine vortex when flowing.
The utility model provides an internal heat exchange tube device for strengthening heat exchange based on boundary layer damage through improvement, which can adopt a common casting process and a 3D printing technology, is simple and convenient to manufacture, is provided with a first external spiral 1 and a second external spiral 2 which are spirally wound with each other, and can better limit the flow of heat or liquid to be exchanged, thereby further prolonging the retention time of the fluid in the heat exchange tube and strengthening the heat transfer effect, and is additionally provided with a first baffling rod 3 and a second baffling rod 4 inside, and the disturbance degree of the fluid is increased by virtue of the baffling rods, so that the boundary layer is further reduced, and the stability between the first external spiral 1 and the second external spiral 2 can be strengthened and the deformation is prevented.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides an intraductal device of heat transfer is reinforceed in destruction of boundary layer which characterized in that: including first outer spiral (1), the outer spiral of second (2), first baffling pole (3) and second baffling pole (4), first outer spiral (1) and the mutual spiral winding of the outer spiral of second (2), be provided with first baffling pole (3) and second baffling pole (4) between first outer spiral (1) and the outer spiral of second (2), first baffling pole (3) and second baffling pole (4) both ends are connected respectively and are supported first outer spiral (1) and the outer spiral of second (2).
2. The heat exchange pipe device based on boundary layer damage enhanced heat exchange of claim 1, wherein: the first outer spiral (1) and the second outer spiral (2) are in the same structure.
3. The heat exchange pipe device based on boundary layer damage enhanced heat exchange of claim 2, wherein: the first outer spiral (1) and the second outer spiral (2) are of a double-spiral structure which forms a 180-degree angle around a central symmetry axis.
4. The heat exchange pipe device based on boundary layer damage enhanced heat exchange of claim 1, wherein: the first rod baffle (3) and the second rod baffle (4) are of the same structure.
5. The heat exchange pipe device based on boundary layer damage enhanced heat exchange of claim 1, wherein: the adjacent first baffling rods (3) and second baffling rods (4) in the first outer spiral (1) and the second outer spiral (2) are perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134055.3U CN215373669U (en) | 2021-05-25 | 2021-05-25 | Heat exchange tube internal device based on boundary layer destruction enhanced heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121134055.3U CN215373669U (en) | 2021-05-25 | 2021-05-25 | Heat exchange tube internal device based on boundary layer destruction enhanced heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215373669U true CN215373669U (en) | 2021-12-31 |
Family
ID=79631402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121134055.3U Expired - Fee Related CN215373669U (en) | 2021-05-25 | 2021-05-25 | Heat exchange tube internal device based on boundary layer destruction enhanced heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215373669U (en) |
-
2021
- 2021-05-25 CN CN202121134055.3U patent/CN215373669U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211231 |