CN210862344U - Efficient spiral snakelike heat exchange coil - Google Patents
Efficient spiral snakelike heat exchange coil Download PDFInfo
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- CN210862344U CN210862344U CN201921515490.3U CN201921515490U CN210862344U CN 210862344 U CN210862344 U CN 210862344U CN 201921515490 U CN201921515490 U CN 201921515490U CN 210862344 U CN210862344 U CN 210862344U
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- heat exchange
- exchange coil
- thread
- main body
- straight pipe
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Abstract
The utility model discloses an efficient spiral snakelike heat exchange coil, which comprises a heat exchange coil main body, wherein the heat exchange coil main body is formed by bending a light straight pipe with an oval cross section into a roundabout snakelike structure; the specific surface area of the straight pipe section is increased by utilizing the thread structure, the actual heat exchange area is correspondingly increased at the moment, the overall heat exchange efficiency is effectively improved, compared with a common heat exchange light pipe, the inner pipe wall and the outer pipe wall are provided with thread-shaped grooves, when fluid flows in the pipe, the fluid near the wall rotates under the guidance of the spiral thread-shaped notch, additional flow along the thread wall surface is generated, periodic disturbance is generated between the fluid and the fluid flowing along the axial direction, the boundary layer becomes thin, the thermal resistance becomes low, and the heat exchange coefficient is increased.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer and specifically relates to an efficient screw thread snakelike heat transfer coil pipe is related to.
Background
The heat exchange tube is one of the core elements of the heat exchange equipment, the heat transfer performance of the heat exchange tube directly determines the heat exchange efficiency of the whole heat exchange equipment, most of the heat exchange tubes commonly used in the current heat exchange equipment mainly comprise round, oval or drop tubes and most of the heat exchange tubes are straight tube sections, although the heat exchange tubes are simple to process and manufacture, the heat exchange performance is general, the occupied space is large, and the heat exchange effect is limited.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
A high-efficiency threaded snakelike heat exchange coil comprises a heat exchange coil main body, wherein the heat exchange coil main body is formed by bending a light straight pipe with an oval cross section into a roundabout snakelike structure;
the heat exchange coil main body is formed by alternately extending bent pipe sections and straight pipe sections, wherein the outer surface of each straight pipe section is provided with a thread structure in a drawing or rolling mode, and the thread structure spirally extends along the straight pipe section of the heat exchange coil main body; the specific surface area of the straight pipe section is increased by utilizing the thread structure, the actual heat exchange area is correspondingly increased at the moment, and the overall heat exchange efficiency is effectively improved.
As a further proposal of the utility model, the groove depth e = 0.2-0.4 mm, the thread pitch p = 8-10 mm and the helix angle β =30 degrees.
As a further aspect of the present invention: the mathematical relationship between the groove depth e and the thread pitch p is that e/p is less than or equal to 0.04.
As a further aspect of the present invention: compared with the common heat exchange light pipe, the thread structure is formed on the inner surface and the outer surface of the straight pipe section, the inner wall and the outer wall of the straight pipe section are provided with thread-shaped grooves, when fluid flows in the pipe, the fluid near the wall rotates under the guidance of the spiral thread-shaped notch, additional flow along the thread wall surface is generated, periodic disturbance is generated between the additional flow and the fluid flowing along the axial direction, a boundary layer becomes thin, the thermal resistance becomes low, and the heat exchange coefficient is increased.
The utility model has the advantages that: the utility model has a thread structure formed on the outer surface of the straight pipe section by drawing or rolling, and the thread structure extends spirally along the straight pipe section of the heat exchange coil pipe main body; the specific surface area of the straight pipe section is increased by utilizing the thread structure, the actual heat exchange area is correspondingly increased at the moment, the overall heat exchange efficiency is effectively improved, compared with a common heat exchange light pipe, the inner pipe wall and the outer pipe wall are provided with thread-shaped grooves, when fluid flows in the pipe, the fluid near the wall rotates under the guidance of the spiral thread-shaped notch, additional flow along the thread wall surface is generated, periodic disturbance is generated between the fluid and the fluid flowing along the axial direction, the boundary layer becomes thin, the thermal resistance becomes low, and the heat exchange coefficient is increased.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a partial structure of the present invention.
In the figure: 1-straight pipe section and 2-thread structure.
Detailed Description
The technical solutions 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 the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, an efficient spiral coil heat exchange coil includes a heat exchange coil main body, wherein the heat exchange coil main body is formed by bending a straight light pipe with an oval cross section into a roundabout serpentine structure;
the heat exchange coil main body comprises a bent pipe section and a straight pipe section 1 which are alternately extended, wherein a thread structure 2 is formed on the outer surface of the straight pipe section 1 in a drawing or rolling mode, and the thread structure 2 spirally extends along the straight pipe section of the heat exchange coil main body; the specific surface area of the straight pipe section 1 is increased by utilizing the thread structure 2, the actual heat exchange area is correspondingly increased at the moment, and the overall heat exchange efficiency is effectively improved.
The thread structure 2 has a groove depth e = 0.2-0.4 mm, a thread pitch p = 8-10 mm, and a helix angle β =30 °.
The mathematical relationship between the groove depth e and the thread pitch p is that e/p is less than or equal to 0.04.
Compared with the common heat exchange light pipe, the thread structure 2 is formed on the inner surface and the outer surface of the straight pipe section 1, the inner wall and the outer wall of the straight pipe section are provided with thread-shaped grooves, when fluid flows in the pipe, the fluid near the wall rotates under the guidance of the spiral thread-shaped notch, additional flow along the thread wall surface is generated, periodic disturbance is generated between the additional flow and the fluid flowing along the axial direction, a boundary layer becomes thin, the thermal resistance is low, and the heat exchange coefficient is increased.
The utility model discloses a theory of operation is: the outer surface of the straight pipe section is formed with a thread structure in a drawing or rolling mode, and the thread structure extends spirally along the straight pipe section of the heat exchange coil pipe main body; the specific surface area of the straight pipe section is increased by utilizing the thread structure, the actual heat exchange area is correspondingly increased at the moment, the overall heat exchange efficiency is effectively improved, compared with a common heat exchange light pipe, the inner pipe wall and the outer pipe wall are provided with thread-shaped grooves, when fluid flows in the pipe, the fluid near the wall rotates under the guidance of the spiral thread-shaped notch, additional flow along the thread wall surface is generated, periodic disturbance is generated between the fluid and the fluid flowing along the axial direction, the boundary layer becomes thin, the thermal resistance becomes low, and the heat exchange coefficient is increased.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. A high-efficiency threaded snakelike heat exchange coil is characterized by comprising a heat exchange coil main body, wherein the heat exchange coil main body is formed by bending a light straight pipe with an oval cross section into a roundabout snakelike structure;
the heat exchange coil main body comprises a bent pipe section and a straight pipe section which are alternately extended, wherein a thread structure is formed on the outer surface of the straight pipe section in a drawing or rolling mode, and the thread structure spirally extends along the straight pipe section of the heat exchange coil main body.
2. The high efficiency threaded serpentine heat exchange coil of claim 1, wherein the thread configuration has a groove depth e = 0.2-0.4 mm, a pitch p = 8-10 mm, and a helix angle β =30 °.
3. The high efficiency, threaded serpentine heat exchange coil of claim 1, wherein the mathematical relationship between the groove depth e and the pitch p is e/p ≦ 0.04.
4. The high efficiency threaded serpentine heat exchange coil of claim 1, wherein the thread formation is formed on the inner and outer surfaces of the straight tube sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515490.3U CN210862344U (en) | 2019-09-12 | 2019-09-12 | Efficient spiral snakelike heat exchange coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921515490.3U CN210862344U (en) | 2019-09-12 | 2019-09-12 | Efficient spiral snakelike heat exchange coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210862344U true CN210862344U (en) | 2020-06-26 |
Family
ID=71286335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921515490.3U Active CN210862344U (en) | 2019-09-12 | 2019-09-12 | Efficient spiral snakelike heat exchange coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210862344U (en) |
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2019
- 2019-09-12 CN CN201921515490.3U patent/CN210862344U/en active Active
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