CN204565438U - A kind of tube-tube plate welding butting grooves - Google Patents
A kind of tube-tube plate welding butting grooves Download PDFInfo
- Publication number
- CN204565438U CN204565438U CN201520146013.XU CN201520146013U CN204565438U CN 204565438 U CN204565438 U CN 204565438U CN 201520146013 U CN201520146013 U CN 201520146013U CN 204565438 U CN204565438 U CN 204565438U
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- tube
- protrusion
- plate welding
- span
- straight flange
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Abstract
The utility model discloses a kind of tube-tube plate welding butting grooves, pipe (2) is inserted in tube sheet (1), the groove root of tube sheet (1) is concave curved surface (3), concave curved surface (3) stretches out formation first protrusion (4), the end of pipe (2) is provided with the second protrusion (5), side and second protrusion (5) of the first protrusion (4) contact to be formed to close and are connected, and the opposite side of the second protrusion (5) is inclined plane (6).This bevel for welding is convenient to assembling and welding operation, and weldquality is high, the easy through welding in the back side.
Description
Technical field
The utility model relates to a kind of tube-tube plate welding butting grooves.
Background technology
In the manufacture of methanation waste heat boiler, the welding line structure between exchanger tubes and tubesheets directly has influence on the service life of whole heat-exchange system.The present invention contains the more rational tube-tube plate welding groove of one, improves the welding line structure between tube-tube plate.
Utility model content
The technical problems to be solved in the utility model is to provide the high tube-tube plate welding butting grooves of a kind of weldquality.
The present invention solves the problems of the technologies described above the technical scheme adopted to be:
A kind of tube-tube plate welding butting grooves, pipe is inserted in tube sheet, it is characterized in that, the groove root of tube sheet is concave curved surface, concave curved surface stretches out formation first protrusion, the end of pipe is provided with the second protrusion, and side and second protrusion of the first protrusion contact to be formed to close and be connected, and the opposite side of the second protrusion is inclined plane.
The radius of curvature of described concave curved surface is 0 ~ 20mm.
Tube-tube plate welding butting grooves as claimed in claim, is characterized in that, the radius of curvature of described concave curved surface is 2 ~ 3mm.
The span of the straight flange a of described first protrusion is 0 ~ 3mm, and the span of straight flange b is 0 ~ 3mm.
The span of the straight flange a of described first protrusion is 1 ± 0.5mm, and the span of straight flange b is 1 ± 0.5mm.
The span of the straight flange e of described second protrusion is 0 ~ 3mm, and the span of straight flange f is 0 ~ 3mm.
The span of the straight flange e of described second protrusion is 1 ± 0.5mm, and the span of straight flange f is 1 ± 0.5mm.
The angle of described inclined plane and horizontal direction is the angular configurations scope of d, d is 40 ~ 50 °.
Described pipe is heat exchanger tube, and described tube sheet is the tube sheet of methanation waste heat boiler.
This bevel for welding is convenient to assembling and welding operation, and weldquality is high, the easy through welding in the back side.Avoid the weld cracking that conventional heat transfer pipe weld seam (fillet welding+paste swollen) root gap causes.
By tension test, result shows that this weld strength is higher than pipe strength.Meet the requirement of the products such as conventional waste heat boiler.
Accompanying drawing explanation
Fig. 1 is pipe 2 profile when being inserted in tube sheet 1;
Fig. 2 is the profile of tube sheet 1;
Fig. 3 is the profile of pipe 2;
Fig. 4 is pipe 1 and pipe 2 postwelding profile.
Description of reference numerals:
Tube sheet 1, pipe 2, concave curved surface 3, concave curved surface 3, first protrusion 4, second protrusion 5, inclined plane 6.
Detailed description of the invention
For making the utility model become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
According to figure, the span 0 ~ 3mm of straight flange a, it is 1 ± 0.5mm that value is implemented in this case; Span 0 ~ the 3mm of straight flange b, it is 1 ± 0.5mm that value is implemented in this case; The span of curved surface c: 0 ~ 20mm, size can set according to heat exchanger tube actual needs, and it is 2 ~ 3mm that value is implemented in this case; The span of angle d: 40 ~ 50 °, the real value of this case is 45 ± 0.5 °, the span 0 ~ 3mm of straight flange e, and it is 1 ± 0.5mm that value is implemented in this case; Span 0 ~ the 3mm of straight flange f, it is 1 ± 0.5mm that value is implemented in this case.
2. heat exchanger tube (sequence 2) and tube sheet (sequence 1) being assembled by illustrating groove type, holding out against.
3. adopt welding machine special without the need to spot welding, directly welding to complete, can finally obtain the full penetration weld of approximate shape as shown in sequence in figure below 3.
Claims (9)
1. a tube-tube plate welding butting grooves, pipe (2) is inserted in tube sheet (1), it is characterized in that, the groove root of tube sheet (1) is concave curved surface (3), concave curved surface (3) stretches out formation first protrusion (4), the end of pipe (2) is provided with the second protrusion (5), and side and second protrusion (5) of the first protrusion (4) contact to be formed to close and be connected, and the opposite side of the second protrusion (5) is inclined plane (6).
2. tube-tube plate welding butting grooves as claimed in claim 1, it is characterized in that, the radius of curvature of described concave curved surface (3) is 0 ~ 20mm.
3. tube-tube plate welding butting grooves as claimed in claim 2, it is characterized in that, the radius of curvature of described concave curved surface (3) is 2 ~ 3mm.
4. tube-tube plate welding butting grooves as claimed in claim 1, it is characterized in that, the span of the straight flange a of described first protrusion (4) is 0 ~ 3mm, and the span of straight flange b is 0 ~ 3mm.
5. tube-tube plate welding butting grooves as claimed in claim 4, it is characterized in that, the span of the straight flange a of described first protrusion (4) is 1 ± 0.5mm, and the span of straight flange b is 1 ± 0.5mm.
6. tube-tube plate welding butting grooves as claimed in claim 1, it is characterized in that, the span of the straight flange e of described second protrusion (5) is 0 ~ 3mm, and the span of straight flange f is 0 ~ 3mm.
7. tube-tube plate welding butting grooves as claimed in claim 6, it is characterized in that, the span of the straight flange e of described second protrusion (5) is 1 ± 0.5mm, and the span of straight flange f is 1 ± 0.5mm.
8. tube-tube plate welding butting grooves as claimed in claim 1, is characterized in that, the angular configurations scope that described inclined plane (6) is d, d with the angle of horizontal direction is 40 ~ 50 °.
9. tube-tube plate welding butting grooves as claimed in claim 1, it is characterized in that, described pipe (2) is heat exchanger tube, the tube sheet that described tube sheet (1) is methanation waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146013.XU CN204565438U (en) | 2015-03-13 | 2015-03-13 | A kind of tube-tube plate welding butting grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146013.XU CN204565438U (en) | 2015-03-13 | 2015-03-13 | A kind of tube-tube plate welding butting grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204565438U true CN204565438U (en) | 2015-08-19 |
Family
ID=53858129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146013.XU Active CN204565438U (en) | 2015-03-13 | 2015-03-13 | A kind of tube-tube plate welding butting grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204565438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101831A (en) * | 2021-12-20 | 2022-03-01 | 浙江亚通焊材有限公司 | Sensor base and base brazing method |
-
2015
- 2015-03-13 CN CN201520146013.XU patent/CN204565438U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101831A (en) * | 2021-12-20 | 2022-03-01 | 浙江亚通焊材有限公司 | Sensor base and base brazing method |
| CN114101831B (en) * | 2021-12-20 | 2022-11-01 | 浙江亚通焊材有限公司 | Sensor base and base brazing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |