CN204064078U - A kind of spiral fin coil - Google Patents
A kind of spiral fin coil Download PDFInfo
- Publication number
- CN204064078U CN204064078U CN201420553332.8U CN201420553332U CN204064078U CN 204064078 U CN204064078 U CN 204064078U CN 201420553332 U CN201420553332 U CN 201420553332U CN 204064078 U CN204064078 U CN 204064078U
- Authority
- CN
- China
- Prior art keywords
- fin
- secondary fin
- spiral
- root
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of spiral fin coil, comprise base tube and fin, described fin comprises main fin and secondary fin, described secondary fin comprises secondary fin end portion and secondary fin root, described fin spiral welded is in the outer surface of base tube, and described secondary fin is fixedly connected with main fin by secondary fin root.The fin of this spiral fin coil is provided with the secondary fin impelling air to form turbulent flow, thus improves heat exchange efficiency, increases heat exchange area again simultaneously.
Description
Technical field
The utility model belongs to field of heat exchange equipment, especially relates to a kind of spiral fin coil.
Background technology
In order to improve heat exchange efficiency, improve energy utilization rate, reduce discharge, enhanced heat exchange is the eternal topic of energy field always.For enhanced heat exchange, the spacing of fin of finned tube is usually very little, and fin area can account for more than 85% of total heat exchange area, and the heat exchange efficiency of heat exchange efficiency to raising heat transmission equipment, the reduction production cost that therefore improve fin are most important.
In current existing heat transmission equipment, spiral fin coil is greatly improved because comparing to traditional finned tube and is widely used in extended surface enhanced heat exchange effect, but because fin surface is level and smooth, air is when passing through, easily form boundary layer between fin, the heat exchange efficiency be between the air in boundary layer and fin is very low.As can be seen here, the heat exchange efficiency of spiral fin coil still has much room for improvement.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of spiral fin coil, and fin is provided with the secondary fin impelling air to form turbulent flow, thus improves heat exchange efficiency, increases heat exchange area again simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of spiral fin coil, comprise base tube and fin, described fin comprises main fin and secondary fin, described secondary fin comprises secondary fin end portion and secondary fin root, described fin spiral welded is in the outer surface of base tube, described secondary fin is fixedly connected with main fin by secondary fin root, the mutual stagger arrangement of secondary fin on described secondary fin and adjacent main fin distributes, secondary fin root and the main fin junction of described secondary fin are curved, and the secondary fin end portion of described secondary fin is spherical in shape.
When air is by fin, the boundary layer that air and fin surface are formed is destroyed by secondary fin, forms turbulent flow, heat exchange efficiency of fins is improved.Because the mutual stagger arrangement of secondary fin on secondary fin and adjacent main fin distributes, make air circuitously by fin, not easily form boundary layer, air agitation have also been obtained enhancing.Secondary fin root and the main fin junction of secondary fin are curved, avoid formation boundary layer, dead angle place, make secondary fin root more firm simultaneously.The secondary fin end portion of secondary fin is spherical in shape, can increase disturbance, avoids scratching object.
The advantage that the utility model has and good effect are: owing to adding secondary fin on fin, make the air flowing through finned tube form turbulent flow on the whole, destroy boundary layer, improve heat exchange efficiency
Accompanying drawing explanation
Fig. 1 is Influences of Structure of Spiral Finned Tube schematic diagram
In figure: 1, base tube, 2, fin, 3, main fin, 4, secondary fin, 5, secondary fin end portion, 6, secondary fin root.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, a kind of spiral fin coil, comprise base tube 1 and fin 2, described fin 2 comprises main fin 3 and secondary fin 4, described secondary fin 4 comprises secondary fin end portion 5 and secondary fin root 6, and described fin 2 spiral welded is in the outer surface of base tube 1, and described secondary fin 4 is fixedly connected with main fin 3 by secondary fin root 6, secondary fin root and the main fin junction of described secondary fin are curved, and the secondary fin end portion of described secondary fin is spherical in shape.
Use this spiral fin coil, when air is by fin 2, the boundary layer that air and fin 2 surface are formed is destroyed by secondary fin 4.Described secondary fin 4 and the secondary fin 4 on adjacent main fin 3 mutually stagger arrangement distribute, and make air circuitously by fin 2, not easily form boundary layer, air agitation have also been obtained enhancing.The secondary fin root 6 of described secondary fin is curved with main fin 3 junction, avoids formation boundary layer, dead angle place, makes secondary fin root 6 more firm simultaneously.The secondary fin end portion 5 of described secondary fin 4 is spherical in shape, can increase disturbance, avoids scratching object simultaneously.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (1)
1. a spiral fin coil, it is characterized in that: comprise base tube (1) and fin (2), described fin (2) comprises main fin (3) and secondary fin (4), described secondary fin (4) comprises secondary fin end portion (5) and secondary fin root (6), described fin (2) spiral welded is in the outer surface of base tube (1), described secondary fin (4) is fixedly connected with main fin (3) by secondary fin root (5), described secondary fin (4) and the secondary fin (4) on adjacent main fin (3) mutually stagger arrangement distribute, the secondary fin root (5) of described secondary fin (4) is curved with main fin (3) junction, the secondary fin end portion (6) of described secondary fin (4) is spherical in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553332.8U CN204064078U (en) | 2014-09-24 | 2014-09-24 | A kind of spiral fin coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420553332.8U CN204064078U (en) | 2014-09-24 | 2014-09-24 | A kind of spiral fin coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064078U true CN204064078U (en) | 2014-12-31 |
Family
ID=52205569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420553332.8U Expired - Fee Related CN204064078U (en) | 2014-09-24 | 2014-09-24 | A kind of spiral fin coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864748A (en) * | 2015-06-17 | 2015-08-26 | 海安天润机械科技有限公司 | Heat exchanger |
| CN107314698A (en) * | 2017-07-04 | 2017-11-03 | 仪征海天铝业有限公司 | A kind of finned tube and its process units and method and fin roll mechanism |
-
2014
- 2014-09-24 CN CN201420553332.8U patent/CN204064078U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864748A (en) * | 2015-06-17 | 2015-08-26 | 海安天润机械科技有限公司 | Heat exchanger |
| CN107314698A (en) * | 2017-07-04 | 2017-11-03 | 仪征海天铝业有限公司 | A kind of finned tube and its process units and method and fin roll mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |