CN201335645Y - Thin-wall internal thread heat-exchanging copper tube and tube-sheet hole expansion-joint structure - Google Patents
Thin-wall internal thread heat-exchanging copper tube and tube-sheet hole expansion-joint structure Download PDFInfo
- Publication number
- CN201335645Y CN201335645Y CNU2008201679931U CN200820167993U CN201335645Y CN 201335645 Y CN201335645 Y CN 201335645Y CN U2008201679931 U CNU2008201679931 U CN U2008201679931U CN 200820167993 U CN200820167993 U CN 200820167993U CN 201335645 Y CN201335645 Y CN 201335645Y
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- Prior art keywords
- tube
- internal thread
- thin
- thread heat
- copper tube
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- Expired - Lifetime
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Abstract
The utility model discloses a thin-wall internal thread heat-exchanging copper tube and a tube-sheet hole expansion-joint structure; comprising a thin-wall internal thread heat-exchanging copper tube and a tube sheet; tube-sheet holes are arranged on the tube sheet, a section of smooth pipe without internal threads, is penetrated at the position of the tube-sheet hole in the thin-wall internal thread heat-exchanging copper tube, the smooth pipe and the thin-wall internal thread heat-exchanging copper tube, which are integrated into one body, is jointed with the tube-sheet hole in an expanding way, the smooth pipe is a copper pipe, and the smooth pipe has 25mm of length. A section of copper smooth pipe without internal threads, is additionally arranged in the internal thread heat-exchanging copper tube on the original basis, and then expansion-joint is carried out, after the expansion-joint is carried out, the leakage of the thin-wall expansion-joint is greatly reduced, burr and copper filings can not exist after expansion-joint, the whole cost is reduced and the practicability is strong.
Description
Technical field
The utility model relates to field of Refrigeration and Air-conditioning, is specifically related to thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure.
Background technology
As Fig. 1, existing thin-walled internal thread heat exchange copper tube 1 is directly used the tube expander expanded joint through back in the tubesheet holes 3 of tube sheet 2, is easy to generate many deficiencies: 1, leak easily behind the thin expanded joint of tube wall; 2, can produce more burr and copper scale behind the riffled tube expanded joint, influence the refrigeration system cleannes easily; 3, because aforesaid deficiency more can produce a large amount of rework costs.
The utility model content
The technical problems to be solved in the utility model provides a kind of thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure, can significantly reduce the leakage phenomenon after tube wall approaches expanded joint, and does not have burr and copper scale to produce behind the expanded joint, has reduced whole cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme; thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure; comprise thin-walled internal thread heat exchange copper tube and tube sheet; tube sheet is provided with tubesheet holes; it is characterized in that: be in the tubesheet holes place in the described thin-walled internal thread heat exchange copper tube and also be equipped with one section not tapped plain tube, plain tube and thin-walled internal thread heat exchange copper tube one and tubesheet holes expanded joint.
Preferably, described plain tube is a copper pipe.
Preferably, described smooth pipe range 25mm.
The utility model is owing to adopt technique scheme, in the internal thread heat exchange copper tube, increasing by one section not tapped copper plain tube on the original basis, expanded joint then, can significantly reduce the leakage phenomenon after tube wall approaches expanded joint behind the expanded joint, there are not burr and copper scale behind the expanded joint, whole cost decreases, and is practical.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of existing thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint;
Fig. 2 is the structural representation of the utility model thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint.
The specific embodiment
As shown in Figure 2, be the utility model thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure, comprise thin-walled internal thread heat exchange copper tube 1 and tube sheet 2, tube sheet is provided with tubesheet holes 3, be in the tubesheet holes place in the described thin-walled internal thread heat exchange copper tube and also be equipped with one section not tapped plain tube 4, plain tube and thin-walled internal thread heat exchange copper tube one and tubesheet holes expanded joint, described plain tube is a copper pipe, described smooth pipe range 25mm.
Claims (3)
1, thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure, comprise thin-walled internal thread heat exchange copper tube and tube sheet, tube sheet is provided with tubesheet holes, it is characterized in that: be in the tubesheet holes place in the described thin-walled internal thread heat exchange copper tube and also be equipped with one section not tapped plain tube, plain tube and thin-walled internal thread heat exchange copper tube one and tubesheet holes expanded joint.
2, according to claim 1 described thin-walled internal thread heat exchange copper tube and tubesheet holes expanded joint structure, it is characterized in that: described plain tube is a copper pipe.
3, according to claim 1 or 2 described thin-walled internal thread heat exchange copper tubes and tubesheet holes expanded joint structure, it is characterized in that: described smooth pipe range 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201679931U CN201335645Y (en) | 2008-11-13 | 2008-11-13 | Thin-wall internal thread heat-exchanging copper tube and tube-sheet hole expansion-joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201679931U CN201335645Y (en) | 2008-11-13 | 2008-11-13 | Thin-wall internal thread heat-exchanging copper tube and tube-sheet hole expansion-joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201335645Y true CN201335645Y (en) | 2009-10-28 |
Family
ID=41287299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201679931U Expired - Lifetime CN201335645Y (en) | 2008-11-13 | 2008-11-13 | Thin-wall internal thread heat-exchanging copper tube and tube-sheet hole expansion-joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201335645Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679482A (en) * | 2016-12-02 | 2017-05-17 | 江苏万宝科技发展有限公司 | Non-weld-connection cooling tower heat-radiating tube |
-
2008
- 2008-11-13 CN CNU2008201679931U patent/CN201335645Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679482A (en) * | 2016-12-02 | 2017-05-17 | 江苏万宝科技发展有限公司 | Non-weld-connection cooling tower heat-radiating tube |
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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: 20091028 |