CN202947520U - Rifled tube - Google Patents
Rifled tube Download PDFInfo
- Publication number
- CN202947520U CN202947520U CN 201220565680 CN201220565680U CN202947520U CN 202947520 U CN202947520 U CN 202947520U CN 201220565680 CN201220565680 CN 201220565680 CN 201220565680 U CN201220565680 U CN 201220565680U CN 202947520 U CN202947520 U CN 202947520U
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- Prior art keywords
- tooth
- riffled tube
- span
- described main
- tube according
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Abstract
The utility model discloses a rifled tube comprising a hollow tube body, wherein the inner wall of the tube body is provided with main teeth and secondary teeth, the main teeth and the secondary teeth are arranged in an interlaced mode, and the tooth heights of the main teeth is not lower than those of the secondary teeth. According to the rifled tube, inner surface areas of the rifled tube are enlarged through inclined teeth on the inner wall of the tube body, a turbulence effect is improved, and rate of heat exchange is improved.
Description
Technical field
The utility model relates to a kind of riffled tube.
Background technology
Transfer pipes extensively is used in heat transfer system in central air-conditioning and full-sized car air-conditioning, often uses light pipe as transfer pipes in prior art, and because the internal surface area of light pipe is less, heat transfer effect has much room for improvement.
Summary of the invention
It is larger that technical problem to be solved in the utility model just is to provide a kind of internal surface area, can improve heat transfer effect a kind of riffled tube.
For solving the problems of the technologies described above, the utility model adopts following technical scheme, a kind of riffled tube, the body that comprises hollow, the inwall of described body is provided with main tooth and secondary tooth, and described main tooth and described secondary tooth are staggered, and the tooth depth of described main tooth is not less than the tooth depth of described secondary tooth.
Preferably, the addendum angle of the addendum angle of described main tooth and described secondary tooth is unequal.
Preferably, the addendum angle of described main tooth equates with the addendum angle of described secondary tooth.
Preferably, the wall thickness span of described inwall is: 0.3 ~ 0.4mm.
Preferably, described main tooth and described secondary tooth have equal helixangleβ, and the span of described helixangleβ is: 15 ° ~ 25 °.
Preferably, the span of the tooth depth of described main tooth is: 0.15 ~ 0.25mm.
Preferably, the span of the tooth depth of described secondary tooth is: 0.1 ~ 0.2mm.
Preferably, the span of the addendum angle of described main tooth is: 20 ° ~ 60 °
Preferably, the span of the addendum angle of described secondary tooth is: 20 ° ~ 60 °
The helical teeth of a kind of riffled tube that the utility model provides by inboard wall of tube body increase riffled tube internal surface area, can be by main tooth and the secondary tooth of the different tooth depths of combination, addendum angle, can adapt to different user demands, reach the effect that improves turbulent effect, improves rate of heat exchange.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a kind of riffled tube structural representation of the utility model;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the partial enlarged drawing of Fig. 2.
The specific embodiment
As shown in Figure 1 to Figure 3, be a kind of riffled tube of the utility model, comprise the body 1 of hollow, the inwall of described body is provided with main tooth 2 and the secondary tooth 3 that a plurality of helical angles equate, described main tooth 2 and described secondary tooth 3 are staggered, and the tooth depth of described main tooth 2 is not less than the tooth depth of described secondary tooth 3
Described main tooth 2 and secondary tooth 3 have increased the total surface area of described riffled tube inner chamber, heat transfer area increases, main tooth 2 is made as different tooth depths and addendum angle from secondary tooth 3, in the process that heat is transmitted, medium for the described riffled tube of flowing through, to produce better turbulent effect, heat transfer effect is better.
Described main tooth 2 is A, and described secondary tooth is B, and the distribution mode of described main tooth 2 and secondary tooth 3 can be: ABAB, perhaps AABB, perhaps AABAAB or other forms.
The addendum angle of the addendum angle of described main tooth 2 and described secondary tooth 3 can be for equating or unequal.
The wall thickness of described inwall is TW, 0.3≤TW≤0.4mm.
Described helical angle is β, 15 °≤β≤25 °.
The tooth depth of described main tooth is Hf1, span be: 0.15≤Hf1≤0.25mm, the tooth depth of described secondary tooth is Hf2,0.1≤Hf2≤0.2mm.
The addendum angle of described main tooth is 1≤60 ° of 1,20 °≤α of α, and the addendum angle of described secondary tooth is 2≤60 ° of 2,20 °≤α of α.
Claims (9)
1. riffled tube comprises the body of hollow, and it is characterized in that: the inwall of described body is provided with main tooth and secondary tooth, and described main tooth and described secondary tooth are staggered, and the tooth depth of described main tooth is not less than the tooth depth of described secondary tooth.
2. a kind of riffled tube according to claim 1, it is characterized in that: the addendum angle of described main tooth and the addendum angle of described secondary tooth are unequal.
3. a kind of riffled tube according to claim 1, it is characterized in that: the addendum angle of described main tooth equates with the addendum angle of described secondary tooth.
4. a kind of riffled tube according to claim 1, it is characterized in that: the wall thickness span of described inwall is: 0.3 ~ 0.4mm.
5. a kind of riffled tube according to claim 1, it is characterized in that: described main tooth and described secondary tooth have equal helical angle, and the span of described helical angle is: 15 ° ~ 25 °.
6. a kind of riffled tube according to claim 1, it is characterized in that: the span of the tooth depth of described main tooth is: 0.15 ~ 0.25mm.
7. a kind of riffled tube according to claim 1, it is characterized in that: the span of the tooth depth of described secondary tooth is: 0.1 ~ 0.2mm.
8. a kind of riffled tube according to claim 1, it is characterized in that: the span of the addendum angle of described main tooth is: 20 ° ~ 60 °
9. a kind of riffled tube according to claim 1, it is characterized in that: the span of the addendum angle of described secondary tooth is: 20 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565680 CN202947520U (en) | 2012-10-31 | 2012-10-31 | Rifled tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565680 CN202947520U (en) | 2012-10-31 | 2012-10-31 | Rifled tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947520U true CN202947520U (en) | 2013-05-22 |
Family
ID=48423219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220565680 Expired - Lifetime CN202947520U (en) | 2012-10-31 | 2012-10-31 | Rifled tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941153A (en) * | 2018-06-13 | 2018-12-07 | 西安交通大学 | Contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology |
-
2012
- 2012-10-31 CN CN 201220565680 patent/CN202947520U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941153A (en) * | 2018-06-13 | 2018-12-07 | 西安交通大学 | Contain intrinsic machine treatment of wastes produced and separation system based on supercritical Water Oxidation Technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |