CN216311517U - Line reactor connection structure and line reactor - Google Patents
Line reactor connection structure and line reactor Download PDFInfo
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- CN216311517U CN216311517U CN202121509780.4U CN202121509780U CN216311517U CN 216311517 U CN216311517 U CN 216311517U CN 202121509780 U CN202121509780 U CN 202121509780U CN 216311517 U CN216311517 U CN 216311517U
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- line reactor
- connecting piece
- main pipe
- pipe connecting
- branch pipe
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- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000011900 installation process Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model provides a line reactor connecting structure, comprising: the main pipe connecting piece and the branch pipe connecting piece are perpendicular to and communicated with the main pipe connecting piece; the branch pipe connecting piece and the main pipe connecting piece are integrally arranged through a transition area; the tee joint is of an integral drawing tee joint structure, the right angle can be in smooth transition, the stress concentration tendency in the vibration or installation process can be reduced, and the fatigue fracture resistance is improved.
Description
Technical Field
The utility model belongs to the technical field of line reactors, and particularly relates to a line reactor connecting structure and a line reactor.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The connection mode of a main pipe and a branch pipe of a high-resistance (line reactor) connecting pipe is shown in figure 1, the diameter of the main pipe is larger (69-70), the wall thickness is 4, the diameter of the branch pipe is about 32, the wall thickness is 3, the connecting pipe is made of carbon steel or alloy steel, holes are formed in the main pipe, fillet welds are used for connection, the thick and thin pipes are connected into a right angle, the fillet weld has larger welding stress, the welded connection position of the branch pipe and the main pipe is excessively not smooth enough, and the high-resistance operation process can generate vibration at the frequency of 100HZ and the vibration displacement of 100; and the three stresses are superposed in addition to the assembly stress in the process of connecting pipe installation, so that the stress at the position in operation is larger, the fatigue strength is lower, and the pipeline is easy to crack, thereby causing electric power accidents.
SUMMERY OF THE UTILITY MODEL
The utility model provides a line reactor connecting structure and a line reactor, aiming at solving the problems.
According to some embodiments, a first aspect of the present invention provides a line reactor connection structure, which adopts the following technical solutions:
a line reactor connection structure comprising: the main pipe connecting piece and the branch pipe connecting piece are perpendicular to and communicated with the main pipe connecting piece;
the branch pipe connecting piece and the main pipe connecting piece are integrally arranged through a transition area.
Further, the diameter of the main pipe connecting piece is larger than that of the branch pipe connecting piece.
Further, two end faces of the main pipe connecting piece are perpendicular to the axis of the main pipe connecting piece.
Further, the cross-section of the main pipe connection member is symmetrically arranged with respect to the axis of the branch pipe connection member.
Further, the cross section of the transition area is two symmetrical circular arcs.
Furthermore, one end of the circular arc is tangent to the edge of the section of the main pipe connecting piece, and the other end of the circular arc is tangent to the edge of the section of the branch pipe connecting piece.
Furthermore, the circumference of the end part of the branch pipe connecting piece, which is far away from the main pipe connecting piece, is provided with a bulge.
Further, the protrusion is a flange.
Further, the connecting structure is made of carbon steel or alloy steel.
According to some embodiments, a second aspect of the present invention provides a line reactor including the line reactor connection structure described in the first aspect; two ends of the main pipe connecting piece are welded with the main pipe of the line reactor; and one end of the branch pipe connecting piece, which is close to the bulge, is welded with the branch pipe of the line reactor.
Furthermore, a first bulge is arranged at the welding end of a branch pipe of the line reactor, a second bulge is arranged at the welding end of the branch pipe connecting piece, and the first bulge is welded with the second bulge.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model is of an integral drawing three-way structure, the right angle can be in smooth transition, the stress concentration tendency in the vibration or installation process can be reduced, and the fatigue fracture resistance can be improved.
2. The butt welding joint reduces the original fillet welding stress and improves the fatigue fracture resistance.
3. The utility model separates the welding joint from the drawing joint, reduces the phenomenon of multiple stress concentration and improves the anti-fatigue capability.
4. The utility model improves the fatigue resistance under vibration, reduces the cracking tendency and reduces the risk of electric power accidents.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a prior art connection for a line reactor according to the present invention;
FIG. 2 is a schematic structural view of embodiment 1 of the present invention;
FIG. 3 is a schematic view showing a structure of a branch pipe provided with projections in embodiment 2 of the present invention.
In the figure: 1. the main pipe, 2, branch pipe, 3, first arch, 4, second arch, 5, transition district, 6, first butt joint portion, 7, second butt joint portion, 8, the main pipe connecting piece, 9, branch pipe connecting piece.
The specific implementation mode is as follows:
the utility model is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1:
as shown in fig. 1, the present embodiment proposes a line reactor connection structure including: a main pipe connecting piece 8 and a branch pipe connecting piece 9 which is vertical to and communicated with the main pipe connecting piece; the branch pipe connecting piece 9 and the main pipe connecting piece 8 are integrally arranged through a transition area 5; specifically, the connecting structure is a three-way structure composed of a main pipe connecting piece 8 and a branch pipe connecting piece 9, and the branch pipe connecting piece 9 and the main pipe connecting piece 8 are integrally arranged by adopting an integral drawing process; compared with the existing welding structure, the tee joint structure obtained through the drawing process has the advantages that smooth transition can be achieved well, welding stress of fillet welds is avoided, and the problem that the welding stress is superposed at the joint of the main pipe and the branch pipe is solved.
In this embodiment, the diameter of the main pipe connection 8 is larger than the diameter of the branch pipe connection 9; two end faces of the main pipe connecting piece 8 are perpendicular to the axis of the main pipe connecting piece 8; the two ends of the main pipe connecting piece 8 are connected with the main pipe 1 of the line reactor by butt welding, because the butt welding joints are the most ideal welding joints in all welding processes, the welding stress is minimum, and no other stress is superposed on the straight line segment part
In the present embodiment, the cross-section of the main pipe connection member 8 is arranged symmetrically with respect to the axis of the branch pipe connection member 9; in other embodiments, it may be set according to actual welding requirements, and the section of the main pipe connecting piece 8 is set to be asymmetric relative to the axis of the branch pipe connecting piece 9.
The section of the transition area 5 is two symmetrical circular arcs; one end of the circular arc is tangent to the edge of the section of the main pipe connecting piece 8, the other end of the circular arc is tangent to the edge of the section of the branch pipe connecting piece 9, smooth transition is realized through the transition area 5, the stress concentration tendency in the vibration or installation process can be reduced, and the fatigue fracture resistance is improved; the fillet weld at the right angle of the original main pipe and the branch pipe is changed into a smooth drawing forming structure, the fillet weld with larger welding stress is changed into a butt weld with smaller welding stress, the mechanical structure (right angle) with easy stress concentration is separated from the welding stress, and the fatigue resistance is stronger.
A second bulge 4 is arranged on the circumferential direction of the end part of the branch pipe connecting piece 9 far away from the main pipe connecting piece 8; preferably, the protrusion is a flange, which facilitates butt welding of the branch pipe connector 9 and the branch pipe 2 of the line reactor.
In this embodiment, the connection structure is made of carbon steel or alloy steel, and the material is selected according to the materials of the main pipe 1 and the branch pipe 2 of the line reactor, so that the materials are consistent, and the welding strength is improved.
Example 2:
as shown in fig. 2, the present embodiment proposes a line reactor, which includes the line reactor connection structure described in the first aspect; two ends of the main pipe connecting piece 8 are welded with the main pipe 1 of the line reactor; and one end of the branch pipe connecting piece 9 close to the bulge is welded with the branch pipe 2 of the line reactor.
In the case of the example 3, the following examples are given,
as shown in fig. 3, this embodiment proposes a line reactor, which is different from embodiment 2 in that a second protrusion 4 is provided at the welded end of the branch pipe connector 9, a first protrusion 3 is provided at the welded end of the branch pipe 2 of the line reactor, and butt welding is performed by the first protrusion 3 and the second protrusion 4 during welding.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A line reactor connection structure characterized by comprising: the main pipe connecting piece and the branch pipe connecting piece are perpendicular to and communicated with the main pipe connecting piece;
the branch pipe connecting piece and the main pipe connecting piece are integrally arranged through a transition area.
2. A line reactor connection structure according to claim 1, characterized in that the diameter of the main pipe connection member is larger than the diameter of the branch pipe connection member.
3. A line reactor connection structure according to claim 1, characterized in that both end faces of the main tube connection member are perpendicular to the axis of the main tube connection member.
4. A line reactor connection structure according to claim 3, characterized in that the cross section of the main pipe connection member is arranged symmetrically with respect to the axis of the branch pipe connection member.
5. A line reactor connection according to claim 1, characterized in that the cross-section of the transition zone is two symmetrical arcs of a circle.
6. A line reactor connection structure according to claim 5, wherein one end of said arc is tangent to the side of the cross section of said main pipe connection member, and the other end of said arc is tangent to the side of the cross section of said branch pipe connection member.
7. A line reactor connection structure according to claim 1, wherein a projection is provided in a circumferential direction of an end portion of the branch pipe connection member remote from the main pipe connection member.
8. A line reactor connection according to claim 7, characterized in that the projection is a flange.
9. A line reactor, characterized in that it comprises a line reactor connection according to claim 1; two ends of the main pipe connecting piece are welded with the main pipe of the line reactor; and one end of the branch pipe connecting piece, which is close to the bulge, is welded with the branch pipe of the line reactor.
10. A line reactor according to claim 9, characterized in that the leg connection piece weld end of the line reactor is provided with a first projection, the leg connection piece weld end is provided with a second projection, and the first projection and the second projection are welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509780.4U CN216311517U (en) | 2021-07-02 | 2021-07-02 | Line reactor connection structure and line reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509780.4U CN216311517U (en) | 2021-07-02 | 2021-07-02 | Line reactor connection structure and line reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216311517U true CN216311517U (en) | 2022-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121509780.4U Active CN216311517U (en) | 2021-07-02 | 2021-07-02 | Line reactor connection structure and line reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216311517U (en) |
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2021
- 2021-07-02 CN CN202121509780.4U patent/CN216311517U/en active Active
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