CN2556587Y - Petaling spiral cannelure pipe - Google Patents
Petaling spiral cannelure pipe Download PDFInfo
- Publication number
- CN2556587Y CN2556587Y CN02266122U CN02266122U CN2556587Y CN 2556587 Y CN2556587 Y CN 2556587Y CN 02266122 U CN02266122 U CN 02266122U CN 02266122 U CN02266122 U CN 02266122U CN 2556587 Y CN2556587 Y CN 2556587Y
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- CN
- China
- Prior art keywords
- spiral
- tube
- groove
- petal
- line
- 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 relates to an improvement of a petal-shaped spiral longitudinal groove tube and is characterized in that the curvature radius R1 of a groove corrugation crest, which is 1-3mm, is larger than the curvature radius R2 of a groove corrugation trough, the R1 to the R2 is more than 1.5 but less than 2.5; the depth of the groove corrugation trough is between 1.0 mm and 1.1 mm and an included angle Alpha between the spiral longitudinal groove corrugation and a tube axial line is 5-15 degrees. The improved petal-shaped spiral longitudinal groove tube strengthens Marangoni effect of a liquid membrane outside the tube, intensifies disturbance, substantially improves heat and liquid transmission property and evidently improves heat transmission capability because of the increase of secondary disturbance flow inside the tube.
Description
Technical field
The utility model relates to a kind of 95234569.2 petal spiral pod pipe patents to be improved.
Background technology
95234569.2 the feature of petal spiral pod pipe patent is to be provided with spiral cannelure line on the pipe inside and outside wall, the peak of groove line is identical with paddy curvature, and it is tangent, wall cross-section thickness uniformity, spiral cannelure line and 0 °＜α of body axis angle≤35 ° of these patents are in implementation process, do some to change making the outer liquid film disturbance of pipe stronger, heat transfer and mass transfer ability significantly strengthen.Particularly spiral cannelure line and body axis angle α have done a large amount of selectivity tests.
Summary of the invention
The purpose of this utility model is that 95234569.2 petal straight pod pipe patents are improved, and particularly spiral cannelure line and body axis angle α select, and provides the outer liquid film disturbance of a kind of pipe stronger, conducts heat and the remarkable petal straight pod pipe that strengthens of mass transfer ability.
The technical solution of the utility model is, it is made of body, be provided with spiral cannelure line on the pipe inside and outside wall, wall cross-section thickness uniformity is characterized in, the radius of curvature R 1 at groove line peak is greater than the radius of curvature R 2 of groove line paddy, R1 is 1～3mm, 1.5＜R1/R2＜2.5, and the degree of depth of groove line paddy is between 1.0～1.1mm, spiral cannelure line and body axis angle α are 5 °-15 °, and optimal selection is 10 °.
Petal spiral pod pipe after improving, because the degree of depth of groove line paddy is deepened, the degree of depth of groove line paddy increases with the ratio of adjacent slot line summit spacing, the radius of curvature at groove line peak increases with the ratio of the radius of curvature of groove line paddy, spiral cannelure line and body axis angle α are 5 °-15 °, optimal selection is 10 °, make the outer not only more uniform topped heating surface of film that flows of pipe like this, and owing to horse traction dagger-axe Buddhist nun effect significantly strengthens, because the second-disturbing flow of cooling water and chilled water strengthens, heat-transfer capability is effectively improved in the pipe.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view.
The specific embodiment
Shown in Fig. 1,2, present embodiment, body 1 is the bronzing pipe, establishes 15 spiral cannelures 2 within it on the outer wall, the radius of curvature R 1 at groove line peak is 1.07mm, the radius of curvature R 2 of groove line paddy is 0.52mm, and R1/R2=1.07/0.52 is 2.06, and the depth d of groove line paddy is 1.07mm, pipe thickness t is 0.7mm, outer diameter D o is 16mm, and internal diameter is 12.46mm, and adjacent slot line summit spacing P is 3.327mm.Spiral cannelure line and body axis angle α are 10 °.When should be effective on generator the time, during sprinkle density 160-200kg/mh, recording its heat transfer coefficient be 1500-1700kcal/m
2H ℃, heat transfer coefficient has improved many.
Claims (2)
1, a kind of petal spiral pod pipe, it is made of body, on the pipe inside and outside wall, be provided with spiral cannelure line, wall cross-section thickness uniformity is characterized in that, the radius of curvature R 1 at groove line peak is greater than the radius of curvature R 2 of groove line paddy, R1 is 1～3mm, 1.5＜R1/R2＜2.5, the degree of depth of groove line paddy is between 1.0～1.1mm, and spiral cannelure line and body axis angle α are 5 °-15 °.
2, petal spiral pod pipe according to claim 1 is characterized in that, spiral cannelure line and body axis angle α are 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02266122U CN2556587Y (en) | 2002-08-08 | 2002-08-08 | Petaling spiral cannelure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02266122U CN2556587Y (en) | 2002-08-08 | 2002-08-08 | Petaling spiral cannelure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556587Y true CN2556587Y (en) | 2003-06-18 |
Family
ID=33732018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02266122U Expired - Fee Related CN2556587Y (en) | 2002-08-08 | 2002-08-08 | Petaling spiral cannelure pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2556587Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10408509B2 (en) | 2013-09-13 | 2019-09-10 | Denso Corporation | Adsorber |
-
2002
- 2002-08-08 CN CN02266122U patent/CN2556587Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10408509B2 (en) | 2013-09-13 | 2019-09-10 | Denso Corporation | Adsorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |