CN202485529U - Internal thread copper pipe - Google Patents
Internal thread copper pipe Download PDFInfo
- Publication number
- CN202485529U CN202485529U CN2012200926586U CN201220092658U CN202485529U CN 202485529 U CN202485529 U CN 202485529U CN 2012200926586 U CN2012200926586 U CN 2012200926586U CN 201220092658 U CN201220092658 U CN 201220092658U CN 202485529 U CN202485529 U CN 202485529U
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- thread copper
- internal thread
- screw thread
- inner screw
- 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 an internal thread copper pipe which is characterized in that the internal thread tooth form of the internal thread copper pipe is changed into a triangle from the original trapezoid, and the addendum angle is changed into 15-20 degrees from the original 50-55 degrees. The internal thread copper pipe has the advantages of being simple in structure, large in unit long internal surface area, high in heat exchange efficiency and the like.
Description
Technical field
The utility model relates to a kind of inner screw thread copper pipe, is the heating-cooling equipment heat exchange elements.
Background technology
Inner screw thread copper pipe is widely used in the condenser and the evaporimeter of air-conditioning system as a kind of high-performance heat transfer components.And the thread tooth of existing inner screw thread copper pipe is trapezoidal, addendum angle be 50 degree to 55 degree, unit head's internal surface area is limited, heat exchanger effectiveness is difficult to further raising.
Summary of the invention
The purpose of the utility model just provides a kind of inner screw thread copper pipe, and this inner screw thread copper pipe unit head internal surface area is bigger than existing inner screw thread copper pipe.
The purpose of the utility model reaches like this: the thread tooth of said inner screw thread copper pipe is by the original trapezoidal present triangle that changes into, and addendum angle changes 15 present degree into to 20 degree by 50 original degree to 55 degree.
The utility model and existing inner screw thread copper pipe are multi-thread internal thread.
The utlity model has simple in structurely, unit head's internal surface area is big, characteristics such as heat exchanger effectiveness height.
Description of drawings
Fig. 1 is the structural representation of existing inner screw thread copper pipe cross section.
Fig. 2 is the structural representation of the utility model cross section.
The specific embodiment
Map 1 can know that existing inner screw thread copper pipe profile of tooth 1 is trapezoidal, and addendum angle A is that 50 degree are to 55 degree.
Map 2 can know that the profile of tooth 3 of the inner screw thread copper pipe 2 of the utility model is a triangle, and addendum angle B is that 15 degree are to 20 degree.
Claims (1)
1. an inner screw thread copper pipe is characterized in that the profile of tooth (3) of inner screw thread copper pipe (2) is triangle, and addendum angle B is that 15 degree are to 20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200926586U CN202485529U (en) | 2012-03-13 | 2012-03-13 | Internal thread copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200926586U CN202485529U (en) | 2012-03-13 | 2012-03-13 | Internal thread copper pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485529U true CN202485529U (en) | 2012-10-10 |
Family
ID=46959946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200926586U Expired - Fee Related CN202485529U (en) | 2012-03-13 | 2012-03-13 | Internal thread copper pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485529U (en) |
-
2012
- 2012-03-13 CN CN2012200926586U patent/CN202485529U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130313 |