CN202734642U - Light-weight dense-tooth inner thread copper tube - Google Patents
Light-weight dense-tooth inner thread copper tube Download PDFInfo
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- CN202734642U CN202734642U CN 201220392758 CN201220392758U CN202734642U CN 202734642 U CN202734642 U CN 202734642U CN 201220392758 CN201220392758 CN 201220392758 CN 201220392758 U CN201220392758 U CN 201220392758U CN 202734642 U CN202734642 U CN 202734642U
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- tooth
- angle
- copper tube
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- weight
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Abstract
The utility model discloses a light-weight dense-tooth inner thread copper tube which is characterized in that parameters of the copper tube is that a helical angle is 15 degrees to 18 degrees, the tooth number is 65, an addendum angle is 20 degrees to 28 degrees, the tooth height is 0.10mm to 0.15mm, the arc radius of the addendum angle is equal to the arc radius of a tooth base angle, the bottom wall thickness is 0.20mm to 0.23mm, the total wall thickness is 0.35mm to 0.39mm, and the per square meter gram weight is 35 to 37 g/m. The tooth number of the light-weight dense-tooth inner thread copper tube is increased, the helical angle of the light-weight dense-tooth inner thread copper tube is increased, arcs of the addendum angle and the tooth base angle are equal, and a light wall structure is utilized. Thus, the heat exchange area of the inner surface is enlarged, heat exchange coefficient is improved, the light-weight heat exchange effect is achieved, and quantization production is achieved.
Description
Technical field
The utility model relates to a kind of inner screw thread copper pipe, is specifically related to the close teeth internal screwed copper tube of a kind of lightweight.
Background technology
Inner screw thread copper pipe is the crucial heat-transfer matcrial of making evaporimeter and condenser in the air-conditioner, for reaching Energy Efficiency Ratio, the realization air conditioner energy saving purpose that improves air-conditioning, and effectively control the air-conditioning products cost, improve exactly the heat output of heat exchanger unit are, control its volume and quality, save material, improve the coefficient of heat transfer, and the selecting properly of the height of the heat transfer efficiency of heat exchanger and air-conditioning cost performance and riffled tube caliber, profile of tooth geometric parameter there is great relation.
Since along with the demand of air-conditioner augmentation of heat transfer and forming internal threads technology constantly improve and progressive, at present, it is complicated and towards thin-walled property, thin footpathization, complicated profile of tooth future development that domestic seamless internal thread copper pipe can process multiple profile of tooth.But for the inner screw thread copper pipe of pipe with small pipe diameter, thin-walled, complicated profile of tooth in actual production process because being subjected to the restriction of equipment, technology, can not reach the mass production requirement, unstable product quality.
Comprehensively above-mentioned, there is further room for improvement in existing inner screw thread copper pipe.
The utility model content
Technical problem to be solved in the utility model is the close teeth internal screwed copper tube of a kind of lightweight that is conducive to produce in batches.
The utility model solves the problems of the technologies described above the technical scheme that adopts: the close teeth internal screwed copper tube of a kind of lightweight, the copper pipe parameter is: helical angle is 15 ° ~ 18 °, the number of teeth is 65, addendum angle is 20 ° ~ 28 °, tooth depth is 0.10 ~ 0.15mm, and addendum angle equates with the arc radius at tooth base angle, and diapire is thick to be 0.20-0.23mm, total wall thickness is 0.35-0.39mm, and Mick heavily is 35-37g/m.
The circular arc r=0.25mm at described addendum angle and tooth base angle.
The external diameter Ф of described copper pipe is 5mm.
Compared with prior art, the utility model has the advantage of: because the close teeth internal screwed copper tube of lightweight, increasing the number of teeth increases, increase helical angle, addendum angle equates with the circular arc at tooth base angle, and adopts light wall construction, thereby increased the inner surface heat exchange area, improved the coefficient of heat transfer, reached the heat-transfer effect of efficient lightweight, can realize quantizing to produce.
Description of drawings
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the utility model internal thread helical angle schematic diagram;
Fig. 3 is the partial enlarged drawing at the utility model A place.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, the close teeth internal screwed copper tube of this lightweight, its technical parameter is: helical angle is 15 ° ~ 18 °, and the number of teeth is 65, addendum angle is 20 °, tooth depth is 0.10 ~ 0.15mm, and addendum angle equates r=0.25mm with the arc radius at tooth base angle, the thick 0.20-0.23mm of diapire, total wall thickness 0.35-0.39mm, the heavy 35-37g/m of Mick is exactly every meter 35 gram of copper pipe～37 gram weight, and the external diameter Ф of copper pipe is 5mm.
The analysis of heat exchange mechanism when the utility model passes through evaporation and condensation, thereby the tooth profile parameter to internal thread carries out global design, the existence of helical angle is in order to make fluid rotary, fluid in the pipeline is produced and radially different Secondary Flow, increase the intensity of turbulent flow, thereby heat exchange is strengthened, and heat transfer coefficient improves very large facilitation; Increasing the number of teeth can increase the number of the nucleus of boiling, is conducive to the behave of boiling heat transfer, makes tooth pitch more reasonable, has improved the utilization rate of tubing; Addendum angle equates with the circular arc at tooth base angle and adopts thin-walled, thin diameter, and these are designed with and are beneficial to the effect that obtains the efficient lightweight heat transfer, realize the product mass production.
Claims (3)
1. close teeth internal screwed copper tube of lightweight, it is characterized in that: the copper pipe parameter is: helical angle is 15 ° ~ 18 °, the number of teeth is 65, addendum angle is 20 ° ~ 28 °, tooth depth is 0.10 ~ 0.15mm, and addendum angle equates the thick 0.20-0.23mm of diapire with the arc radius at tooth base angle, total wall thickness 0.35-0.39mm, Mick heavily is 35-37g/m.
2. the close teeth internal screwed copper tube of lightweight according to claim 1 is characterized in that: the arc radius r=0.25mm at described addendum angle and tooth base angle.
3. the close teeth internal screwed copper tube of lightweight according to claim 2, it is characterized in that: the external diameter Ф of described copper pipe is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392758 CN202734642U (en) | 2012-08-09 | 2012-08-09 | Light-weight dense-tooth inner thread copper tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392758 CN202734642U (en) | 2012-08-09 | 2012-08-09 | Light-weight dense-tooth inner thread copper tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202734642U true CN202734642U (en) | 2013-02-13 |
Family
ID=47660333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392758 Expired - Lifetime CN202734642U (en) | 2012-08-09 | 2012-08-09 | Light-weight dense-tooth inner thread copper tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202734642U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990778A (en) * | 2017-12-26 | 2018-05-04 | 金龙精密铜管集团股份有限公司 | Efficient inner screw thread copper pipe |
| CN109967585A (en) * | 2019-03-28 | 2019-07-05 | 宁波金田铜管有限公司 | A kind of high teeth internal screwed copper tube of low Mick weight heavy wall and its machining tool |
| CN112444154A (en) * | 2020-11-25 | 2021-03-05 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
-
2012
- 2012-08-09 CN CN 201220392758 patent/CN202734642U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990778A (en) * | 2017-12-26 | 2018-05-04 | 金龙精密铜管集团股份有限公司 | Efficient inner screw thread copper pipe |
| CN107990778B (en) * | 2017-12-26 | 2024-04-26 | 金龙精密铜管集团股份有限公司 | Internal thread copper pipe |
| CN109967585A (en) * | 2019-03-28 | 2019-07-05 | 宁波金田铜管有限公司 | A kind of high teeth internal screwed copper tube of low Mick weight heavy wall and its machining tool |
| CN109967585B (en) * | 2019-03-28 | 2021-03-09 | 宁波金田铜管有限公司 | Low-meter-gram-weight thick-wall high-tooth internal thread copper pipe and machining tool thereof |
| CN112444154A (en) * | 2020-11-25 | 2021-03-05 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
| CN112444154B (en) * | 2020-11-25 | 2022-03-22 | 龙口市龙蓬精密铜管有限公司 | Equivalent lightweight internal thread copper pipe and preparation method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |