CN105423022B - A kind of major diameter abutted flange structure - Google Patents
A kind of major diameter abutted flange structure Download PDFInfo
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- CN105423022B CN105423022B CN201410458361.0A CN201410458361A CN105423022B CN 105423022 B CN105423022 B CN 105423022B CN 201410458361 A CN201410458361 A CN 201410458361A CN 105423022 B CN105423022 B CN 105423022B
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- butt joint
- ring
- groove
- circular cone
- fixedly connected
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Abstract
The present invention relates to tank major diameter abutted flange technical field, specifically related to a kind of major diameter abutted flange structure, purpose is solved using conventional abutted flange structure, and the stress at flange and store-vessel bottom butt weld is big in surfaces externally and internally gap, the problem of floor loading capability is poor.Characterized in that, it includes butt joint ring (1), weakens groove (2), circular cone reinforcing ring (3) and butt end (4)；Circular cone reinforcing ring (3) upper end is fixedly connected with butt end (4), and lower end outside is fixedly connected with weakening groove (2)；Butt joint ring (1) is fixedly connected on the outside of weakening groove (2)；Docking circumferential weld (5) is fixedly connected on the outside of butt joint ring (1), and flange arrangement is fixedly connected entirely through docking circumferential weld (5) with bottom.After the present invention, abutted flange and bottom to dock circumferential weld (5) surfaces externally and internally stress basically identical, improve the bearing capacity more than 30% of weld seam at this；The present invention also significantly reduces improving cost.
Description
Technical field
The present invention relates to tank major diameter abutted flange technical field, and in particular to a kind of major diameter abutted flange knot
Structure.
Background technology
In tank repropellenting release and gas input discharge etc. be all by the flange on tank to it is related
Pipeline joint provides passage.As shown in figure 1, abutted flange refers to that the butt joint ring of flange is identical with the bus of store-vessel bottom, lead to
The perforate in bottom is crossed, the connection with abutted flange and store-vessel bottom is realized by the way of butt welding.
Tank bears internal pressure in the course of the work, in abutted flange and bottom joint, there is rigidity effect, opening effect
Should, stress is complicated caused by weld material reduction, generally non-membrane stress herein.Using conventional abutted flange structure,
Stress at flange with bottom butt weld is larger in surfaces externally and internally gap, there is significant extra bending moment effect, serious shadow
Ring floor loading capability.
The content of the invention
Present invention aim to address using conventional abutted flange structure, at flange and store-vessel bottom butt weld
Stress is big in surfaces externally and internally gap, and the problem of floor loading capability is poor is eliminated caused by existing abutted flange there is provided a kind of
Circumferential weld additional bending moment is docked, the approximate membrane stress state for the commissure that achieves a butt joint improves the major diameter pair of structural-load-carrying capacity
Acting flange structure.
What the present invention was realized in：
A kind of major diameter abutted flange structure, including butt joint ring, weakening groove, circular cone reinforcing ring and butt end；Circular cone is strengthened
Ring upper end is fixedly connected with butt end, and lower end outside is fixedly connected with weakening groove；Butt joint ring is fixedly connected on the outside of weakening groove；It is right
The outside that circumferential weld is fixedly connected on butt joint ring is connect, flange arrangement is fixedly connected entirely through docking circumferential weld with bottom.
Butt joint ring generally annular plate-like as described above, cross section is rectangle, for being connected with docking circumferential weld.
The groove as described above that weakens is that reeded annular slab is opened in upper end, weakens the thickness few 1 of the thickness ratio butt joint ring of groove
To 4mm, weakening groove is used to reduce the stress born at docking circumferential weld.
Circular cone reinforcing ring as described above generally ring-type, cross section is taper, and cone angle A is 10 ° to 50 °；Circular cone is strengthened
Ring is used to stress concentration caused by opening effect being transferred at circular cone reinforcing ring by docking circumferential weld position, improves flange arrangement
Integrated carrying ability.
The thickness of butt joint ring as described above is 6.2mm, and the width La of butt joint ring is 25mm, and the width Lb for weakening groove is
26mm, the thickness for weakening groove is 4.2mm, and the cone angle A of circular cone reinforcing ring is 18.4 °.
Described butt joint ring, weakening groove, circular cone reinforcing ring and butt end uses stainless steel material or aluminum alloy materials system
Into.
The beneficial effects of the invention are as follows：
The present invention includes butt joint ring, weakens groove, circular cone reinforcing ring and butt end.After the present invention, abutted flange and case
The docking circumferential weld 5 at bottom is basically identical for surfaces externally and internally stress away from significantly improving by original surfaces externally and internally stress difference, approximately realizes
Membrane stress state, improves the bearing capacity more than 30% of weld seam at this；The present invention can utilize conventional welding tooling, machining equipment
To realize Product processing, improving cost is reduced.
Brief description of the drawings
Fig. 1 is existing store-vessel bottom and abutted flange structural representation；
Fig. 2 is store-vessel bottom and a kind of major diameter abutted flange section of structure of the present invention；
Fig. 3 is a kind of major diameter abutted flange structural representation of the invention；
Fig. 4 is a kind of major diameter abutted flange structure partial view I of the invention；
Fig. 5 is existing abutted flange partial view I.
Wherein：1. butt joint ring, 2. weaken groove, 3. circular cone reinforcing rings, 4. butt ends, 5. docking circumferential welds.
Embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figures 2 and 3, a kind of major diameter abutted flange structure, including butt joint ring 1, weakening groove 2, circular cone reinforcing ring 3
With butt end 4.The upper end of circular cone reinforcing ring 3 is fixedly connected with butt end 4, and lower end outside is fixedly connected with weakening groove 2.Butt joint ring 1
It is fixedly connected on the outside of weakening groove 2.Docking circumferential weld 5 is fixedly connected on the outside of butt joint ring 1, and flange arrangement is entirely through butt joint ring
Seam 5 is fixedly connected with bottom.
The generally annular plate-like of butt joint ring 1, cross section is rectangle, for being connected with docking circumferential weld 5.
It is that reeded annular slab is opened in upper end to weaken groove 2, weakens the thickness few 1 of thickness ratio butt joint ring 1 of groove 2 to 4mm, cuts
Weak groove 2 is used to reduce the stress born at docking circumferential weld 5.
As shown in figure 4, the generally ring-type of circular cone reinforcing ring 3, cross section is taper, cone angle A is 10 ° to 50 °.Circular cone is strengthened
Ring 3 is used to stress concentration caused by opening effect being transferred at circular cone reinforcing ring 3 by the position of docking circumferential weld 5, improves flange
The integrated carrying ability of structure.
Butt end 4 uses the universal architecture of flange butt end.
Butt joint ring 1, weakening groove 2, circular cone reinforcing ring 3 and butt end 4 are made of stainless steel material or aluminum alloy materials.
By the bottom of 6m diameters exemplified by internal pressure 0.78MPa is born, the outer diameter D of abutted flange is 300mm, and internal diameter d is
180mm, the thickness of butt joint ring 1 is 6.2mm, and the width La of butt joint ring 1 is 25mm, and the width Lb for weakening groove 2 is 26mm, weakens groove
2 thickness is 4.2mm, and the cone angle A of circular cone reinforcing ring 3 is 18.4 °, and this parameter causes the stress docked at circumferential weld 5 approximately to meet
Membrane stress requirement.
The present invention includes butt joint ring, weakens groove, circular cone reinforcing ring and butt end.After the present invention, abutted flange and case
The docking circumferential weld 5 at bottom is basically identical for surfaces externally and internally stress away from significantly improving by original surfaces externally and internally stress difference, approximately realizes
Membrane stress state, improves the bearing capacity more than 30% of weld seam at this；The present invention can utilize conventional welding tooling, machining equipment
To realize Product processing, improving cost is reduced.
Claims (4)
1. a kind of major diameter abutted flange structure, it is characterised in that：It includes butt joint ring (1), weakens groove (2), circular cone reinforcing ring
And butt end (4) (3)；Circular cone reinforcing ring (3) upper end is fixedly connected with butt end (4), and lower end outside is with weakening the fixed company of groove (2)
Connect；Butt joint ring (1) is fixedly connected on the outside of weakening groove (2)；Docking circumferential weld (5) is fixedly connected on the outside of butt joint ring (1), flange
Structure is fixedly connected entirely through docking circumferential weld (5) with bottom；
Described butt joint ring (1) generally annular plate-like, cross section is rectangle, for being connected with docking circumferential weld (5)；
Described weakening groove (2) is that reeded annular slab is opened in upper end, weakens the thickness few 1 of the thickness ratio butt joint ring (1) of groove (2)
To 4mm, weakening groove (2) is used to reduce the stress that docking circumferential weld (5) place is born.
2. major diameter abutted flange structure according to claim 1, it is characterised in that：Described circular cone reinforcing ring (3) is whole
Body is ring-type, and cross section is taper, and cone angle A is 10 ° to 50 °；Circular cone reinforcing ring (3) is used for stress collection caused by opening effect
In circular cone reinforcing ring (3) place is transferred to by docking circumferential weld (5) position, improve the integrated carrying ability of flange arrangement.
3. major diameter abutted flange structure according to claim 1, it is characterised in that：The thickness of described butt joint ring (1)
For 6.2mm, the width La of butt joint ring (1) is 25mm, and the width Lb for weakening groove (2) is 26mm, and the thickness for weakening groove (2) is
4.2mm, the cone angle A of circular cone reinforcing ring (3) is 18.4 °.
4. the major diameter abutted flange structure according to claim 1-3 any one, it is characterised in that：Described butt joint ring
(1), weaken groove (2), circular cone reinforcing ring (3) and butt end (4) to be made of stainless steel material or aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458361.0A CN105423022B (en) | 2014-09-10 | 2014-09-10 | A kind of major diameter abutted flange structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410458361.0A CN105423022B (en) | 2014-09-10 | 2014-09-10 | A kind of major diameter abutted flange structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423022A CN105423022A (en) | 2016-03-23 |
| CN105423022B true CN105423022B (en) | 2017-08-25 |
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ID=55501443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410458361.0A Active CN105423022B (en) | 2014-09-10 | 2014-09-10 | A kind of major diameter abutted flange structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105423022B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798203B (en) * | 2019-02-18 | 2023-10-03 | 北京星际荣耀空间科技有限公司 | Storage tank bottom structure and connection structure of storage tank bottom and engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2873425A1 (en) * | 2004-07-23 | 2006-01-27 | Faurecia Sys Echappement | Exhaust gas pipe fixation device for internal combustion engine of motor vehicle, has flange cooperating with stainless steel pipe end, counter flange integrated to cylinder head, and unit assuring flange and counter flange pre-assembling |
| US7107662B1 (en) * | 2000-12-21 | 2006-09-19 | Gene W. Arant, as Trustee | Method and a coupler for joining two steel pipes |
| CN201159351Y (en) * | 2008-02-20 | 2008-12-03 | 江阴市恒润法兰有限公司 | Welding neck flange especially for wind power nuclear power |
| CN202302429U (en) * | 2011-11-08 | 2012-07-04 | 徐小玲 | Novel flange plate |
| CN103453252A (en) * | 2013-09-17 | 2013-12-18 | 江阴中南重工股份有限公司 | Flange for pipeline connection |
| CN203585318U (en) * | 2013-11-28 | 2014-05-07 | 上海航天精密机械研究所 | Sealing flange for low-temperature tank cabin-crossing test |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008063296A1 (en) * | 2008-12-29 | 2010-07-01 | Erhard Gmbh & Co. Kg | Method for producing a loose flange and fitting with at least one pipe section and with a loose flange |
-
2014
- 2014-09-10 CN CN201410458361.0A patent/CN105423022B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7107662B1 (en) * | 2000-12-21 | 2006-09-19 | Gene W. Arant, as Trustee | Method and a coupler for joining two steel pipes |
| FR2873425A1 (en) * | 2004-07-23 | 2006-01-27 | Faurecia Sys Echappement | Exhaust gas pipe fixation device for internal combustion engine of motor vehicle, has flange cooperating with stainless steel pipe end, counter flange integrated to cylinder head, and unit assuring flange and counter flange pre-assembling |
| CN201159351Y (en) * | 2008-02-20 | 2008-12-03 | 江阴市恒润法兰有限公司 | Welding neck flange especially for wind power nuclear power |
| CN202302429U (en) * | 2011-11-08 | 2012-07-04 | 徐小玲 | Novel flange plate |
| CN103453252A (en) * | 2013-09-17 | 2013-12-18 | 江阴中南重工股份有限公司 | Flange for pipeline connection |
| CN203585318U (en) * | 2013-11-28 | 2014-05-07 | 上海航天精密机械研究所 | Sealing flange for low-temperature tank cabin-crossing test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105423022A (en) | 2016-03-23 |
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