CN217583571U - Split type welding-free flange - Google Patents
Split type welding-free flange Download PDFInfo
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- CN217583571U CN217583571U CN202221554533.0U CN202221554533U CN217583571U CN 217583571 U CN217583571 U CN 217583571U CN 202221554533 U CN202221554533 U CN 202221554533U CN 217583571 U CN217583571 U CN 217583571U
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- flange
- sealing
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- positioning
- pipeline
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Abstract
A split type welding-free flange comprises an upper flange body and a lower flange body which are used for embracing a pipeline, wherein the two flange bodies are provided with butt joint beads and are fastened into a whole through bolts; the axial sealing body is arranged between the two flange bodies and is provided with an axial positioning convex edge matched with the axial sealing positioning groove. The novel welding machine is simple in structure, convenient to install and free of welding, the working efficiency is improved, and the labor intensity is reduced. When being particularly suitable for carrying out pipeline installation or maintenance in the operational environment of inflammable and explosive, inconvenient welding operation, this utility model has safe and reliable, characteristics such as application are extensive.
Description
Technical Field
The utility model relates to a pipe connection technique, especially a split type welding flange of exempting from.
Background
The flange connection has the advantages of simple structure, convenient processing, low cost, convenient disassembly and maintenance and the like, and is widely applied to pipeline engineering in urban water supply, petroleum industry, chemical industry and the like. The pipeline is influenced by various external factors for a long time, so that the phenomena of dripping, cracks and the like exist at the joint of the pipeline flange, and the flange needs to be replaced. Or the existing pipeline needs to be modified according to other requirements. Because no flange is reserved on the pipeline during design at that time, the flange needs to be welded. Particularly in the industries of chemical industry, petroleum industry and the like, which are inflammable and explosive, the adoption of various welding processes has certain danger and consumes a large amount of welding time, thereby increasing the labor intensity and reducing the working efficiency.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to prior art not enough, provided a simple structure, processing easily, simple to operate's split type welding flange of exempting from.
The to-be-solved technical problem of the utility model is realized through following technical scheme, a welding flange is exempted from to split type, and its characteristics are:
comprises an upper flange body and a lower flange body which are used for holding a pipeline, the two flange bodies are provided with butt joint edge openings and are fastened into a whole through bolts,
the flange body is provided with an inner arc surface attached with the pipeline, the inner arc surface close to the two ends of the flange body is provided with a circumferential sealing positioning groove, the butt joint edge opening of the flange body is provided with an axial sealing positioning groove,
the device is provided with a circumferential sealing body between an upper flange body and a lower flange body and a pipeline, wherein the circumferential sealing body is provided with a circumferential positioning convex edge matched with a sealing positioning groove in the circumferential direction of the flange bodies;
the axial sealing body is arranged between the two flange bodies and is provided with an axial positioning convex edge matched with the axial sealing positioning groove.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, the cross sectional shape of axial seal and circumference seal is rectangle, circular or oval.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, at least open on one of them flange body have prevent with pipeline relative movement's locating hole, the locating hole is equipped with helicitic texture, is equipped with positioning bolt in the locating hole.
The utility model discloses the technical problem that solves can also further realize through following technical scheme, positioning bolt include with the screw thread section of locating hole spiro union, the screw thread section upper end is equipped with the application of force end, and the lower extreme of screw thread section is equipped with the seal segment, and the seal segment is equipped with tapered rubber seal cover.
The to-be-solved technical problem of the utility model can also be further realized through following technical scheme, be equipped with the butt joint ring flange in the wherein one end of the flange body.
Compared with the prior art, the utility model, install split type welding flange exempts from at the pipeline tip through bolted connection. The upper flange body and the lower flange body are provided with sealing grooves and are sealed through fixed sealing bodies. The novel welding machine is simple in structure, convenient to install and free of welding, the working efficiency is improved, and the labor intensity is reduced. When being particularly suitable for carrying out pipeline installation or maintenance in the operational environment of inflammable and explosive, inconvenient welding operation, this utility model has safe and reliable, characteristics such as application are extensive.
Drawings
Fig. 1 is a schematic structural view of a split type welding-free flange of the present invention;
FIG. 2 is a schematic view of the upper flange body structure;
FIG. 3 is a schematic view of the sealing body structure of the present invention;
FIG. 4 is a schematic view of the positioning bolt of the present invention;
fig. 5 is a sectional view taken along line a-a of fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, and in order to make those skilled in the art understand the present invention further, the embodiments of the present invention will be described in detail and fully with reference to the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A split type welding-free flange is shown in the figure, wherein: 1. the device comprises an upper flange body 2, a positioning bolt 3, a bolt 4, a lower flange body 5, a sealing gasket 6, a sealing positioning groove 21, a positioning bolt rod 22 and a positioning conical sealing sleeve.
Comprises an upper flange body and a lower flange body which are used for embracing and combining a pipeline, the two flange bodies are provided with butt joint beads and are fastened into a whole through bolts,
the flange body is provided with an inner arc surface which is jointed with the pipeline, the inner arc surface which is close to the two ends of the flange body is provided with a circumferential sealing positioning groove, the butt joint edge opening of the flange body is provided with an axial sealing positioning groove,
the device is provided with a circumferential sealing body between an upper flange body and a lower flange body and a pipeline, and the circumferential sealing body is provided with a circumferential positioning convex edge matched with a sealing positioning groove in the circumferential direction of the flange body;
the axial sealing body is arranged between the two flange bodies and is provided with an axial positioning convex edge matched with the axial sealing positioning groove.
The cross-sectional shapes of the axial sealing body and the circumferential sealing body are rectangular, circular or oval.
At least one flange body is provided with a positioning hole for preventing relative movement with the pipeline, the positioning hole is provided with a thread structure, and a positioning bolt is arranged in the positioning hole.
The positioning bolt comprises a threaded section in threaded connection with the positioning hole, a force application end is arranged at the upper end of the threaded section, a sealing section is arranged at the lower end of the threaded section, and a conical rubber sealing sleeve is arranged on the sealing section.
The upper flange body and the lower flange body are connected through bolts to install the split type welding-free flange at the end part of the pipeline. And drilling a positioning hole on the pipeline by using a drilling tool from the positioning hole of the flange body, and then installing the positioning bolt in the positioning hole.
The positioning bolts are fixed flanges and prevent the flanges from sliding and displacing along the axial direction or the radial direction. When the pressure in the pipeline is large, the positioning bolts of the upper flange body can not meet the bearing capacity, and a positioning hole which is the same as that of the upper flange body can be additionally arranged on the lower flange body, so that the use stability of the flange is guaranteed.
The positioning bolt is provided with a conical rubber sealing sleeve at the lower end of the positioning bolt rod, so that the positioning hole on the pipeline can be sealed, and the axial displacement of the flange can be adjusted in a micro-scale mode.
When the through holes on the upper flange body and the lower flange body are produced and processed, the relative distance between the centers of the through holes is reduced by 5-10 mm, and the relative distance between the through holes on the flanges is increased because the sealing gaskets are arranged between the upper flange body and the lower flange body. The relative distance is reduced in order to facilitate mounting with standard flanges.
A docking flange may be provided at one end of the flange body.
Claims (5)
1. The utility model provides a welding flange is exempted from to split type which characterized in that:
comprises an upper flange body and a lower flange body which are used for embracing and combining a pipeline, the two flange bodies are provided with butt joint beads and are fastened into a whole through bolts,
the flange body is provided with an inner arc surface attached with the pipeline, the inner arc surface close to the two ends of the flange body is provided with a circumferential sealing positioning groove, the butt joint edge opening of the flange body is provided with an axial sealing positioning groove,
the device is provided with a circumferential sealing body between an upper flange body and a lower flange body and a pipeline, and the circumferential sealing body is provided with a circumferential positioning convex edge matched with a sealing positioning groove in the circumferential direction of the flange body;
the axial sealing body is arranged between the two flange bodies and is provided with an axial positioning convex edge matched with the axial sealing positioning groove.
2. The split welding-free flange according to claim 1, wherein: the cross-sectional shapes of the axial sealing body and the circumferential sealing body are rectangular, circular or oval.
3. The split welding-free flange according to claim 1, wherein: at least one flange body is provided with a positioning hole for preventing relative movement with the pipeline, the positioning hole is provided with a thread structure, and a positioning bolt is arranged in the positioning hole.
4. The split welding-free flange according to claim 3, wherein: the positioning bolt comprises a threaded section in threaded connection with the positioning hole, a force application end is arranged at the upper end of the threaded section, a sealing section is arranged at the lower end of the threaded section, and a conical rubber sealing sleeve is arranged on the sealing section.
5. The split welding-free flange according to claim 1, wherein: one end of the flange body is provided with a butt joint flange plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221554533.0U CN217583571U (en) | 2022-06-21 | 2022-06-21 | Split type welding-free flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221554533.0U CN217583571U (en) | 2022-06-21 | 2022-06-21 | Split type welding-free flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217583571U true CN217583571U (en) | 2022-10-14 |
Family
ID=83530808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221554533.0U Active CN217583571U (en) | 2022-06-21 | 2022-06-21 | Split type welding-free flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217583571U (en) |
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2022
- 2022-06-21 CN CN202221554533.0U patent/CN217583571U/en active Active
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