CN217208291U - Corrosion-resistant inside lining return bend - Google Patents
Corrosion-resistant inside lining return bend Download PDFInfo
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- CN217208291U CN217208291U CN202123313710.4U CN202123313710U CN217208291U CN 217208291 U CN217208291 U CN 217208291U CN 202123313710 U CN202123313710 U CN 202123313710U CN 217208291 U CN217208291 U CN 217208291U
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Abstract
The utility model discloses a corrosion-resistant lining bent pipe, which comprises a bent pipe and a corrosion-resistant lining pipe; the corrosion-resistant lining pipe is closely attached to the inner wall of the bent pipe; the outer pipe wall of the elbow is integrally provided with a reinforcing convex ring, and an annular cavity is arranged in the reinforcing convex ring and around the outer pipe wall of the elbow; each locking hole communicated with the annular cavity is formed in the bent pipe; the outer wall of the corrosion-resistant lining pipe is integrally provided with locking convex columns, the locking convex columns penetrate through the locking holes respectively and extend into the annular cavity, and the extending ends are integrally provided with locking convex blocks buckled in the annular cavity. This corrosion-resistant inside lining return bend utilizes the locking lug on each locking projection tip of embedding in the annular cavity to can lock spacingly to corrosion-resistant interior bushing pipe, prevent that corrosion-resistant interior bushing pipe and return bend from breaking away from, ensure the mounting structure intensity of corrosion-resistant interior bushing pipe, prolong the life of return bend.
Description
Technical Field
The utility model relates to a return bend, especially a corrosion-resistant inside lining return bend.
Background
Various corrosion-resistant pipelines are often needed to be used in the chemical field, the bent pipe is a common connecting pipeline, the corrosion-resistant pipe is needed to be lined inside the bent pipe in order to achieve corrosion resistance, but the existing corrosion-resistant pipe is only simply pasted on the inner wall of the bent pipe, the structural strength is unreliable, and the problem of pipe wall separation can occur in long-term use. Therefore, it is necessary to design a corrosion-resistant lining elbow pipe, which can have a relatively stable corrosion-resistant lining pipe and prolong the service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the corrosion-resistant lining bent pipe has the advantages of being stable and long in service life.
In order to realize the purpose of the utility model, the utility model provides a corrosion-resistant lining bent pipe, which comprises a bent pipe and a corrosion-resistant lining pipe; the corrosion-resistant lining pipe is closely attached to the inner wall of the bent pipe; the outer pipe wall of the elbow is integrally provided with a reinforcing convex ring, and an annular cavity is arranged in the reinforcing convex ring and around the outer pipe wall of the elbow; each locking hole communicated with the annular cavity is formed in the bent pipe; the outer wall of the corrosion-resistant lining pipe is integrally provided with locking convex columns, the locking convex columns penetrate through the locking holes respectively and extend into the annular cavity, and the extending ends are integrally provided with locking convex blocks buckled in the annular cavity.
Further, the locking lugs are integrally connected in the annular cavity to form the locking ring.
Furthermore, the pipe orifices at the two ends of the elbow are respectively provided with a butt joint mounting flange; the two ends of the corrosion-resistant lining pipe respectively extend out of the pipe orifices at the two ends of the bent pipe, and the outer wall of the pipe orifice at the extending end is provided with an extrusion flange edge which is tightly attached to the butt joint ring surface of the butt joint mounting flange.
Furthermore, the edge of the extrusion flange edge is provided with a plurality of counter-pulling holes at intervals; and butt joint protection pipes for penetrating through the split bolts are uniformly connected and arranged on the extruding flange edges and the orifices of the split holes.
Furthermore, extrusion sealing convex rings are arranged on the extrusion surface of the extrusion flange edge, at the pipe orifice of the corrosion-resistant lining pipe and at the periphery of each butt joint protection pipe.
Furthermore, both ends of the bent pipe are sleeved with a sealing cover, and the annular inner wall of the sealing cover is provided with an annular corrosion-resistant lining; two flange sealing convex rings are arranged on the inner side annular surface of the annular corrosion-resistant lining and are used for respectively extruding and sleeving the circumferential edges of two extrusion flange edges at the butt joint position when the bent pipe is in butt joint installation.
Furthermore, an inner wall convex ring embedded into the annular corrosion-resistant lining is arranged on the annular inner wall of the sealing cover cap.
Furthermore, a slope chamfer is arranged on the edge of the annular corrosion-resistant lining at the cover opening of the sealing cover cap.
Furthermore, the orifices at the two ends of the corrosion-resistant lining pipe protrude out of the extrusion ring surface of the extrusion flange edge, and a butt chamfer angle is arranged on the outer edge of the protruding orifice.
Furthermore, each supporting steel ring is embedded in the pipe of the corrosion-resistant lining pipe.
The beneficial effects of the utility model reside in that: the locking convex blocks at the end parts of the locking convex columns are embedded into the annular cavity, so that the corrosion-resistant lining pipe can be locked and limited, the corrosion-resistant lining pipe is prevented from being separated from the bent pipe, the mounting structural strength of the corrosion-resistant lining pipe is ensured, and the service life of the bent pipe is prolonged; the pipe wall structural strength of the locking hole on the bent pipe can be effectively enhanced by utilizing the reinforcing convex ring.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic sectional view of the sealing cover according to the present invention;
fig. 3 is a schematic view of a partial sectional structure of the installation position of the reinforcing flange of the present invention.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1:
as shown in fig. 1-3, the utility model discloses a corrosion-resistant inside lining return bend includes: a bent pipe 1 and a corrosion-resistant lining pipe 5; the corrosion-resistant lining pipe 5 is closely attached to the inner wall of the elbow pipe 1; a reinforcing convex ring 8 is integrally arranged on the outer pipe wall of the elbow pipe 1, and an annular cavity 9 is arranged in the reinforcing convex ring 8 and around the outer pipe wall of the elbow pipe 1; each locking hole 10 communicated with the annular cavity 9 is arranged on the elbow 1; the outer wall of the corrosion-resistant lining pipe 5 is integrally provided with locking convex columns 11, the locking convex columns 11 penetrate through the locking holes 10 respectively and extend into the annular cavity 9, and the extending ends are integrally provided with locking convex blocks 12 buckled in the annular cavity 9.
The locking convex blocks 12 at the end parts of the locking convex columns 11 are embedded into the annular cavity 9, so that the corrosion-resistant lining pipe 5 can be locked and limited, the corrosion-resistant lining pipe 5 is prevented from being separated from the bent pipe 1, the mounting structural strength of the corrosion-resistant lining pipe 5 is ensured, and the service life of the bent pipe 1 is prolonged; the strength of the pipe wall structure at the position where the locking hole 10 is arranged on the elbow pipe 1 can be effectively enhanced by using the reinforcing convex ring 8.
Further, the locking lugs 12 are integrally connected in the annular cavity 9 to form a locking ring. The locking ring is formed by integrally connecting the locking lugs 12, so that the stability and the structural strength of the locking lugs 12 can be effectively enhanced.
Further, the pipe orifices at two ends of the elbow pipe 1 are respectively provided with a butt joint mounting flange 3; two ends of the corrosion-resistant lining pipe 5 respectively extend out of pipe orifices at two ends of the elbow pipe 1, an extrusion flange edge 6 is arranged on the outer wall of the pipe orifice at the extending end, and the extrusion flange edge 6 is tightly attached to the butt joint ring surface of the butt joint mounting flange 3.
The sealing performance of the butt joint pipe orifice of the corrosion-resistant lining pipe 5 can be realized under the clamping of the two butt joint mounting flanges 3 by utilizing the extrusion flange edges 6 during butt joint mounting.
Furthermore, the edge of the extrusion flange edge 6 is provided with a plurality of counter-pulling holes at intervals; the extrusion flange edge 6 is uniformly connected with a butt joint protection pipe 21 which is used for penetrating through the split bolts 4 and is positioned at the hole openings of the split holes. Utilize butt joint protecting tube 21 can carry out the anticorrosion protection to split bolt 4, and can strengthen the butt joint precision of two extrusion flange limits 6 when the butt joint installation.
Furthermore, extrusion sealing convex rings 7 are arranged on the extrusion surface of the extrusion flange edge 6, at the pipe orifice of the corrosion-resistant lining pipe 5 and at the periphery of each butt joint protection pipe 21. The extrusion sealing convex ring 7 can enhance the extrusion sealing performance at the pipe orifice of the corrosion-resistant lining pipe 5 and the periphery of each butt joint protection pipe 21 during butt joint installation.
Furthermore, a sealing cover cap 2 is sleeved on each of two ends of the elbow 1, and an annular corrosion-resistant lining 13 is arranged on the annular inner wall of the sealing cover cap 2; a bolt hole 18 which is convenient for the split bolt 4 to penetrate through and a pipe hole 17 which is sleeved on the elbow pipe 1 are arranged on the disc surface of the sealing cover 2; two flange sealing convex rings 14 are arranged on the inner side annular surface of the annular corrosion-resistant lining 13 and are used for respectively being extruded and sleeved on the circumferential edges of the two extrusion flange edges 6 at the butt joint position when the elbow 1 is in butt joint installation.
The arrangement of the two flange sealing convex rings 14 on the annular corrosion-resistant lining 13 can surround the two extrusion flange edges 6 at the butt joint, so that the butt joint position of the elbow 1 is further prevented from being corroded and sealed, liquid splashing is avoided when leakage occurs, and the use safety is enhanced.
Further, an inner wall bead 16 embedded in the annular corrosion-resistant lining 13 is provided on the annular inner wall of the sealing cover 2. The installation stability of the annular corrosion-resistant lining 13 can be enhanced by the inner wall bead 16.
Further, a slope chamfer 15 is provided on the edge of the annular corrosion-resistant lining 13 at the mouth of the sealing cover 2. The snap-fit mounting of the sealing cover 2 can be facilitated by using the sloping chamfer 15.
Further, the orifices at the two ends of the corrosion-resistant lining pipe 5 are protruded out of the extrusion ring surface of the extrusion flange edge 6, and a butt chamfer 19 is arranged on the outer edge of the protruded orifices. The butt chamfer 19 can facilitate the insertion of the protruded pipe orifice of the corrosion-resistant lining pipe 5 into the annular groove at the butt joint for sealing during butt joint installation.
Further, each support steel ring 20 is embedded in the corrosion-resistant lining pipe 5. The structural strength of the corrosion-resistant lining pipe 5 can be effectively enhanced by utilizing each supporting steel ring 20, and the long-term use invariance is kept.
The utility model discloses an among the corrosion-resistant inside lining return bend, corrosion-resistant inside lining pipe 5, extrusion flange limit 6, the corrosion-resistant inside lining of annular 13, butt joint protecting tube 21, extrusion seal flange 7, flange seal flange 14, locking projection 11 and locking lug 12 all adopt corrosion-resistant material to make and form, for example what this application adopted is that the preparation of polytetrafluoroethylene material forms.
As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A corrosion-resistant inner liner elbow pipe is characterized in that: comprises a bent pipe (1) and a corrosion-resistant lining pipe (5); the corrosion-resistant lining pipe (5) is closely attached to the inner wall of the bent pipe (1); a reinforcing convex ring (8) is integrally arranged on the outer pipe wall of the elbow pipe (1), and an annular cavity (9) is arranged in the reinforcing convex ring (8) and around the outer pipe wall of the elbow pipe (1); each locking hole (10) communicated with the annular cavity (9) is arranged on the bent pipe (1); the outer wall of the corrosion-resistant lining pipe (5) is integrally provided with locking convex columns (11), the locking convex columns (11) penetrate through the locking holes (10) respectively and stretch into the annular cavity (9), and locking convex blocks (12) buckled in the annular cavity (9) are integrally arranged on the stretching ends.
2. The corrosion resistant liner elbow of claim 1 wherein: the locking lugs (12) are integrally connected in the annular cavity (9) to form a locking ring.
3. The corrosion-resistant lined elbow of claim 1, wherein: the pipe orifices at two ends of the bent pipe (1) are respectively provided with a butt joint mounting flange (3); the two ends of the corrosion-resistant lining pipe (5) respectively extend out of the pipe orifices at the two ends of the bent pipe (1), an extrusion flange edge (6) is arranged on the outer wall of the pipe orifice at the extending end, and the extrusion flange edge (6) is tightly attached to the butt joint ring surface of the butt joint mounting flange (3).
4. A corrosion resistant lined elbow according to claim 3, wherein: the edge of the extrusion flange edge (6) is provided with a plurality of counter-pulling holes at intervals; and butt joint protective pipes (21) for penetrating through the split bolts (4) are uniformly connected and arranged on the extrusion flange edges (6) and the orifices of the split holes.
5. The corrosion-resistant lined elbow of claim 4, wherein: extrusion sealing convex rings (7) are arranged on the extrusion surface of the extrusion flange edge (6) and positioned at the pipe orifice of the corrosion-resistant lining pipe (5) and the periphery of each butt joint protection pipe (21).
6. A corrosion resistant lined elbow according to claim 3, wherein: the two ends of the bent pipe (1) are respectively sleeved with a sealing cover (2), and the annular inner wall of the sealing cover (2) is provided with an annular corrosion-resistant lining (13); two flange sealing convex rings (14) are arranged on the inner side annular surface of the annular corrosion-resistant lining (13) and are used for respectively extruding and sleeving the circumferential edges of two extrusion flange edges (6) at the butt joint position when the elbow (1) is in butt joint installation.
7. The corrosion-resistant lined elbow of claim 6, wherein: an inner wall convex ring (16) embedded in the annular corrosion-resistant lining (13) is arranged on the annular inner wall of the sealing cover cap (2).
8. The corrosion-resistant lined elbow of claim 6, wherein: and a slope chamfer (15) is arranged on the edge of the annular corrosion-resistant lining (13) at the cover opening of the sealing cover (2).
9. A corrosion resistant liner elbow according to claim 3 wherein: the orifices at the two ends of the corrosion-resistant lining pipe (5) are protruded out of the extrusion ring surface of the extrusion flange edge (6), and the outer edge of the protruded orifices is provided with a butt chamfer angle (19).
10. The corrosion resistant liner elbow of claim 1 wherein: each supporting steel ring (20) is embedded in the corrosion-resistant lining pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313710.4U CN217208291U (en) | 2021-12-27 | 2021-12-27 | Corrosion-resistant inside lining return bend |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123313710.4U CN217208291U (en) | 2021-12-27 | 2021-12-27 | Corrosion-resistant inside lining return bend |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217208291U true CN217208291U (en) | 2022-08-16 |
Family
ID=82785600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123313710.4U Active CN217208291U (en) | 2021-12-27 | 2021-12-27 | Corrosion-resistant inside lining return bend |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217208291U (en) |
-
2021
- 2021-12-27 CN CN202123313710.4U patent/CN217208291U/en active Active
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