CN205587851U - Whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring - Google Patents
Whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring Download PDFInfo
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- CN205587851U CN205587851U CN201620411757.4U CN201620411757U CN205587851U CN 205587851 U CN205587851 U CN 205587851U CN 201620411757 U CN201620411757 U CN 201620411757U CN 205587851 U CN205587851 U CN 205587851U
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- shell ring
- hubbed flange
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Abstract
The utility model relates to a connection structure of large -scale medium -voltage equipment especially relates to the connection structure that multilayer shell ring pressure vessel went up shell ring and hubbed flange, specifically is whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring, and it is great that dark circumferential weld produced stress when solution hubbed flange and multilayer shell ring welded, and weld quality is difficult to the problem of assurance, and the scheme is: including the hubbed flange, the hubbed flange leaves with the link of shell ring has the stairstepping interface, and each ladder section thickness of interface keeps the unanimity with each layer shell ring thickness respectively, and each ladder section transition face is opened has the groove, and the groove that corresponds is with it opened respectively to the end of multilayer shell ring, the multilayer shell ring from inside to outside the successive layer respectively with the groove butt -welding connection of hubbed flange stairstepping interface. The advantage: 1, the multilayer shell ring respectively with ladder section butt -welding connection for welding stress is scattered in in each ladder section, 2, avoid forming dark circumferential weld, welding quality improves, 3, welding fastness and gas tightness can improve.
Description
Technical field
This utility model relates to the attachment structure of large-scale medium-voltage equipment, especially relates to shell ring and the attachment structure of hubbed flange on multilamellar shell ring pressure vessel, the specially Welding Structure of multilamellar shell ring overall clamping wrapping hubbed flange.
Background technology
On current large-scale medium-voltage equipment, multilamellar shell ring and hubbed flange Welding Structure include hubbed flange 1, the long-neck end of described hubbed flange 1 connects multilamellar shell ring 2, described multilamellar shell ring 2 successively wrapping inner layer shell ring 2, described multilamellar shell ring 2 all has groove with the connection end of both hubbed flanges 1, and described multilamellar shell ring 2 is connected with hubbed flange 1 successively butt welding at groove.There is following defect in this kind of Welding Structure: hubbed flange is connected with multilamellar shell ring when the groove that end holds is in butt welding can form Heavy girth weld 3, and welding stress is relatively big, and weldquality is difficult to ensure that, easily causes leakage when bearing pressure.Therefore a kind of weld seam of design is high, it is possible to the Welding Structure of the multilamellar shell ring and hubbed flange that eliminate stress concentration is extremely necessary.
Summary of the invention
This utility model solves Heavy girth weld when hubbed flange welds with multilamellar shell ring and produces stress relatively greatly, the problem that weldquality is difficult to ensure that, it is provided that the Welding Structure of a kind of multilamellar shell ring overall clamping wrapping hubbed flange.
This utility model is achieved through the following technical solutions: the Welding Structure of multilamellar shell ring overall clamping wrapping hubbed flange, including hubbed flange, described hubbed flange has stairstepping interface with the connection end of shell ring, each ladder section thickness of described interface keeps consistent with each layer shell ring thickness respectively, described each ladder section transition face has groove, the termination of described multilamellar shell ring has corresponding groove, and the groove butt welding with hubbed flange stairstepping interface the most respectively of described multilamellar shell ring is connected.Connection end at hubbed flange opens stairstepping interface, multilamellar shell ring respectively with each ladder section successively butt welding, the stress of girth joint is scattered in each ladder section, multilamellar shell ring ecto-entad forms Multilayer clamping binding structure for binding to hubbed flange, not only weld stress is less, and welding quality improves, intensity increases, and air-tightness is preferable.
Described hubbed flange innermost layer ladder section termination has internal groove, is connected by outer groove between remaining each ladder section.Innermost layer ladder section opens internal groove, and internal layer shell ring completes in being welded in cylinder with hubbed flange, is accepted by outer layer shell ring bottom weld seam, and welding quality is higher, and bearing stress is bigger, better tightness.
This utility model has the advantage that 1, multilamellar shell ring is connected with ladder section butt welding respectively so that welding stress is scattered in each ladder section；2, avoiding the formation of Heavy girth weld, welding quality improves；3, firm welding and air-tightness are improved.
Accompanying drawing explanation
Fig. 1 is the Welding Structure schematic diagram of existing multilamellar shell ring and hubbed flange；
Fig. 2 is this utility model Welding Structure schematic diagram；
In figure: 1-hubbed flange, 2-shell ring, 3-Heavy girth weld.
Detailed description of the invention
The Welding Structure of multilamellar shell ring overall clamping wrapping hubbed flange, including hubbed flange 1, described hubbed flange 1 has stairstepping interface with the connection end of shell ring 2, each ladder section thickness of described interface keeps consistent with each layer shell ring 2 thickness respectively, described each ladder section transition face has groove, the termination of described multilamellar shell ring 2 has corresponding groove, and the groove butt welding with hubbed flange 1 stairstepping interface the most respectively of described multilamellar shell ring 2 is connected.
When being embodied as, described hubbed flange 1 innermost layer ladder section termination has internal groove, is connected by outer groove transition between remaining each ladder section.
During assembly welding, first the innermost circle termination butt welding of innermost layer shell ring 2 with hubbed flange 1 stairstepping interface is connected, the most successively socket outer layer shell ring 2, and the transition groove of stairstepping interface each with hubbed flange 1 respectively is welded and fixed, assembly welding has worked.
Claims (2)
1. the Welding Structure of a multilamellar shell ring overall clamping wrapping hubbed flange, including hubbed flange (1), it is characterized in that: described hubbed flange (1) has stairstepping interface with the connection end of shell ring (2), each ladder section thickness of described interface keeps consistent with each layer shell ring (2) thickness respectively, described each ladder section transition face has groove, the termination of described multilamellar shell ring (2) has corresponding groove, and the groove butt welding with hubbed flange (1) stairstepping interface the most respectively of described multilamellar shell ring (2) is connected.
The Welding Structure of multilamellar shell ring overall clamping the most according to claim 1 wrapping hubbed flange, it is characterised in that: described hubbed flange (1) innermost layer ladder section termination has internal groove, is connected by outer groove transition between remaining each ladder section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411757.4U CN205587851U (en) | 2016-05-09 | 2016-05-09 | Whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411757.4U CN205587851U (en) | 2016-05-09 | 2016-05-09 | Whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205587851U true CN205587851U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620411757.4U Active CN205587851U (en) | 2016-05-09 | 2016-05-09 | Whole welded structure who presss from both sides hard -pressed bale and prick hubbed flange of multilayer shell ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205587851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
-
2016
- 2016-05-09 CN CN201620411757.4U patent/CN205587851U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915666A (en) * | 2019-04-16 | 2019-06-21 | 无锡金龙石化冶金设备制造有限公司 | A kind of multilayer corrugated pipe and the connection structure of adapter tube and attaching method thereof |
| CN109915666B (en) * | 2019-04-16 | 2023-11-17 | 无锡金龙石化冶金设备制造有限公司 | Connection structure and connection method of multilayer corrugated pipe and connecting pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |