CN206563527U - It is easy to welded structure between super ferrite exchanger tubes and tubesheets - Google Patents
It is easy to welded structure between super ferrite exchanger tubes and tubesheets Download PDFInfo
- Publication number
- CN206563527U CN206563527U CN201720056830.5U CN201720056830U CN206563527U CN 206563527 U CN206563527 U CN 206563527U CN 201720056830 U CN201720056830 U CN 201720056830U CN 206563527 U CN206563527 U CN 206563527U
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- China
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- tubesheets
- easy
- welding
- tube sheet
- exchanger tubes
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Abstract
The utility model is easy to welded structure between being related to super ferrite exchanger tubes and tubesheets, belong to welding technology field in pressure vessel, including tube sheet and heat exchanger tube, tube sheet is provided with some welding holes, and the side of tube sheet is tube side side, the opposite side of tube sheet is shell side side, characterized in that, the welding hole outward flange is provided with annular groove, the annular groove includes outer shroud and inner ring, the outer shroud is provided with circular protrusions, and the top of the inner ring is outward-dipping groove.The utility model tungsten electrode in welding is easily deep into exchanger tubes and tubesheets angle at all, and is easily installed, removes welding protection set, and in welding process, compared to the welding gun with argon protecting cover, welding gun pipette tips are more flexible, is easy to operation.
Description
Technical field
The utility model belongs to welding technology field in pressure vessel, specifically, is super ferrite heat exchanger tube and pipe
It is easy to welded structure between plate.
Background technology
The filling metal of 019Cr19Mo2NbTi super ferrite exchanger tubes and tubesheets is more, for anti-oxidation, adopts more
Welded at a slow speed with low current, in order to prevent argon gas is lost in too fast, copper of placing are blocked up more on the inside of heat exchanger tube, to strengthen protecting effect, this
Sample can only prevent argon gas to be lost in along heat exchanger tube.
In order to solve this problem, in actual welding, argon protecting cover is installed additional on welding gun more, in weld formation argon
Air ring, to improve welding quality, but installs the mode of argon protecting cover additional on welding gun, reduces the flexibility ratio of welding gun operation.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided between super ferrite exchanger tubes and tubesheets
It is easy to welded structure.
To achieve the above object, the utility model provides following technical scheme：
The utility model is easy to welded structure, including tube sheet and heat exchange between being related to super ferrite exchanger tubes and tubesheets
Pipe, tube sheet is provided with some welding holes, and the side of tube sheet is tube side side, and the opposite side of tube sheet is shell side side, it is characterised in that institute
Welding hole outward flange is stated provided with annular groove, the annular groove includes outer shroud and inner ring, and the outer shroud is provided with circular protrusions, described
The top of inner ring is outward-dipping groove.
As further scheme of the present utility model, the depth of the groove is 1~1.5mm.
As further scheme of the present utility model, interior sealing groove is provided with the annular groove.
As further scheme of the present utility model, the bottom outer of the inner ring be provided with groove, groove be provided with it is O-shaped
Sealing ring.
As further scheme of the present utility model, U-shaped locating slot is provided with the circular protrusions.
As further scheme of the present utility model, the angle on the top of the groove and inner ring is 45 °.
As further scheme of the present utility model, the end of the heat exchanger tube is stretched into inside tube sheet, and apart from tube sheet
0.5~1mm of surface.
As further scheme of the present utility model, sealing gasket is filled in the interior sealing groove.
The welding structure needs to coordinate welding protection set to use, and annular groove is goed deep into one end of welding protection set, and by O-shaped
Welding protection set is fixed at annular groove by sealing ring, sealing gasket and U-shaped locating slot, in welding process, is filled in protective cover
Full argon gas, argon gas can be reduced in the case where not weakening welding gun flexibility ratio and is lost in speed, and after the completion of welding, protective case
Also allow for removing.
The protective cover expanded by heating in welding process, forms close between the position of welding and O-ring seal, sealing gasket
Envelope, further prevents argon gas to be lost in.
Compared with prior art, good effect of the present utility model is：
1. the utility model tungsten electrode in welding is easily deep into exchanger tubes and tubesheets angle at all, and is easy to peace
Dress, dismounting welding protection set, in welding process, compared to the welding gun with argon protecting cover, welding gun pipette tips are more flexible, are easy to
Operation.
Brief description of the drawings
Fig. 1 is the structural representation at the one of welding hole of the utility model；
Fig. 2 is the diagrammatic cross-section after the completion of the utility model welding；
Mark in accompanying drawing 1-2 is respectively：1. annular groove；2. heat exchanger tube；3. outer shroud；4. inner ring；5. groove；6. it is circular convex
Rise；7.U type locating slots；8.O type sealing rings；9. tube sheet；10. interior sealing groove；11. welding hole.
Embodiment
In order that technological means, character of innovation, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As illustrated, it is easy to welded structure between super ferrite exchanger tubes and tubesheets, including tube sheet 9 and heat exchanger tube 2,
Tube sheet is provided with some welding holes 11, and the side of tube sheet is tube side side, and the opposite side of tube sheet is shell side side, it is characterised in that institute
Welding hole outward flange is stated provided with annular groove 1, the annular groove includes outer shroud 3 and inner ring 4, the outer shroud is provided with circular protrusions 6,
The top of the inner ring is outward-dipping groove 5.
As further scheme of the present utility model, the depth of the groove 5 is 1~1.5mm.
As further scheme of the present utility model, interior sealing groove 10 is provided with the annular groove 1.
As further scheme of the present utility model, the bottom outer of the inner ring be provided with groove, groove be provided with it is O-shaped
Sealing ring 8.
As further scheme of the present utility model, U-shaped locating slot 7 is provided with the circular protrusions.
As further scheme of the present utility model, the groove 5 and the angle on the top of inner ring are 45 °.
As further scheme of the present utility model, the end of the heat exchanger tube 2 is stretched into inside tube sheet, and apart from tube sheet 9
0.5~1mm of surface.
As further scheme of the present utility model, sealing gasket is filled in the interior sealing groove.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment,
And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms
It is new.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality
New scope limits by appended claims rather than described above, it is intended that will fall equivalency in claim
All changes in implication and scope are included in the utility model, any reference in claim should not be considered as into limit
The involved claim of system.
Claims (8)
1. it is easy to welded structure between super ferrite exchanger tubes and tubesheets, including tube sheet and heat exchanger tube, if tube sheet is provided with
Dry welding hole, the side of tube sheet is tube side side, and the opposite side of tube sheet is shell side side, it is characterised in that the welding hole outward flange
Provided with annular groove, the annular groove includes outer shroud and inner ring, and the outer shroud is provided with circular protrusions, the top of the inner ring be to
The groove of outer incline.
2. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
The depth of the groove is 1~1.5mm.
3. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
Interior sealing groove is provided with the annular groove.
4. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
The bottom outer of the inner ring is provided with groove, groove and is provided with O-ring seal.
5. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
U-shaped locating slot is provided with the circular protrusions.
6. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
The angle on the top of the groove and inner ring is 45 °.
7. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 1, it is characterised in that
The end of the heat exchanger tube is stretched into inside tube sheet, and apart from 0.5~1mm of surface of tube sheet.
8. it is easy to welded structure between super ferrite exchanger tubes and tubesheets according to claim 3, it is characterised in that
Filling sealing gasket in the interior sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056830.5U CN206563527U (en) | 2017-01-17 | 2017-01-17 | It is easy to welded structure between super ferrite exchanger tubes and tubesheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056830.5U CN206563527U (en) | 2017-01-17 | 2017-01-17 | It is easy to welded structure between super ferrite exchanger tubes and tubesheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563527U true CN206563527U (en) | 2017-10-17 |
Family
ID=60029919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720056830.5U Expired - Fee Related CN206563527U (en) | 2017-01-17 | 2017-01-17 | It is easy to welded structure between super ferrite exchanger tubes and tubesheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390339A (en) * | 2020-04-04 | 2020-07-10 | 天津津滨石化设备有限公司 | Welding process of high-purity ferrite stainless steel heat exchanger |
-
2017
- 2017-01-17 CN CN201720056830.5U patent/CN206563527U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390339A (en) * | 2020-04-04 | 2020-07-10 | 天津津滨石化设备有限公司 | Welding process of high-purity ferrite stainless steel heat exchanger |
| CN111390339B (en) * | 2020-04-04 | 2021-10-29 | 天津津滨石化设备有限公司 | Welding process of high-purity ferrite stainless steel heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171017 Termination date: 20200117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |