CN222458822U - High-strength pipeline expansion joint for electric pipeline - Google Patents
High-strength pipeline expansion joint for electric pipeline Download PDFInfo
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- CN222458822U CN222458822U CN202420903193.0U CN202420903193U CN222458822U CN 222458822 U CN222458822 U CN 222458822U CN 202420903193 U CN202420903193 U CN 202420903193U CN 222458822 U CN222458822 U CN 222458822U
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- flange plate
- inner bushing
- corrugated pipe
- fixedly arranged
- expansion joint
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- 238000007789 sealing Methods 0.000 claims abstract description 57
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of expansion joints, and discloses a high-strength pipeline expansion joint for an electric pipeline, which solves the problem of poor use effect of the traditional pipeline expansion joint, and comprises a corrugated pipe, wherein a first flange plate is fixedly arranged at one end of the corrugated pipe, a second flange plate is fixedly arranged at the other end of the corrugated pipe, the first flange plate and the second flange plate are connected through a plurality of pull rods, a plurality of positioning nuts matched with the first flange plate and the second flange plate are arranged at both ends of the pull rods, a first inner bushing positioned in the corrugated pipe is fixedly arranged at one end of the first flange plate, a second inner bushing positioned in the corrugated pipe and the first inner bushing is fixedly arranged at one end of the second flange plate, and a sealing limiting sliding sleeve which is slidably connected in the first inner bushing is arranged at one end of the second inner bushing far away from the second flange plate; through this pipeline expansion joint, can reduce the influence of steam to the bellows, improve bulk strength and stability of using.
Description
Technical Field
The utility model belongs to the technical field of expansion joints, and particularly relates to a high-strength pipeline expansion joint for an electric pipeline.
Background
There are various types of electric power pipelines, wherein the steam pipeline for the thermal power plant also belongs to one type of electric power pipeline, the electric power steam pipeline needs to bear high temperature and impact force to a certain extent when in use, therefore, a pipeline expansion joint needs to be installed, and the pipeline expansion joint is used as an elastic compensation element capable of freely stretching, and has the advantages of reliable work, good performance, compact structure and the like, however, the existing electric power steam pipeline is single in structure, the temperature and pressure of gas in the steam pipeline are high, the corrosiveness to the corrugated pipe is high, the inner wall of the corrugated pipe is easy to damage, and the service life of the expansion joint is further influenced.
Disclosure of utility model
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the high-strength pipeline expansion joint for the electric pipeline, which effectively solves the problem that the use effect of the traditional pipeline expansion joint is poor.
The high-strength pipeline expansion joint for the electric pipeline comprises a corrugated pipe, wherein a first flange plate is fixedly arranged at one end of the corrugated pipe, a second flange plate is fixedly arranged at the other end of the corrugated pipe, the first flange plate is connected with the second flange plate through a plurality of pull rods, a plurality of positioning nuts matched with the first flange plate and the second flange plate are arranged at two ends of the pull rods, a first inner bushing positioned in the corrugated pipe is fixedly arranged at one end of the first flange plate, a second inner bushing positioned in the corrugated pipe and the first inner bushing is fixedly arranged at one end of the second flange plate, and a sealing limiting sliding sleeve which is slidably connected with the first inner bushing is arranged at one end, far away from the second flange plate.
Preferably, a first sealing gasket is fixedly arranged at one end, far away from the corrugated pipe, of the first flange plate, and a second sealing gasket is fixedly arranged at one end, far away from the corrugated pipe, of the second flange plate.
Preferably, one end of the inner surface of the first inner bushing is fixedly provided with a first convex ring, the inner surface of the first convex ring is provided with a first annular groove, the inner part of the first annular groove is provided with a first sealing ring which is in sliding connection with the outer surface of the second inner bushing, and one end of the inner side edge of the first inner bushing is provided with a plurality of positioning grooves.
Preferably, a second convex ring is fixedly arranged at one end of the outer surface of the second inner bushing, a second annular groove is formed in the outer surface of the second convex ring, a second sealing ring which is in sliding connection with the inner surface of the first inner bushing is arranged in the second annular groove, a plurality of bolt holes are formed in the side edge of one end of the second inner bushing, and a plurality of positioning rods which penetrate through the positioning grooves and are in sliding connection with the positioning grooves are fixedly arranged on the side edge of one end of the second flange plate.
Preferably, a clamping groove matched with the second inner bushing is formed in one end of the sealing limit sliding sleeve, an L-shaped sealing gasket is arranged on the inner surface of the clamping groove, a plurality of long screws matched with the bolt holes are inserted in the sealing limit sliding sleeve, an annular groove III is formed in the middle of the outer surface of the sealing limit sliding sleeve, and a sealing ring III in sliding connection with the inner surface of the first inner bushing is arranged in the annular groove III.
Compared with the prior art, the utility model has the beneficial effects that:
(1) In operation, the electric steam pipeline can be connected with the electric steam pipeline by the corrugated pipe, the first flange plate and the second flange plate, the elastic compensation of the pipeline can be realized, the service life of the steam pipeline is prolonged, and the tightness of the connection of the first flange plate and the second flange plate with the steam pipeline can be improved by the first sealing gasket and the second sealing gasket;
(2) Through being provided with first inner liner, second inner liner and sealed spacing sliding sleeve, can realize keeping apart steam, avoid steam direct action bellows and influence the life of bellows, through being provided with sealing washer one, sealing washer two and sealing washer three, can improve the leakproofness that first inner liner is connected with second inner liner and sealed spacing sliding sleeve, through being provided with sealed spacing sliding sleeve, constant head tank and locating lever, can realize spacing effect, and then can improve expansion joint's bulk strength and stability.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
In the drawings:
FIG. 1 is a schematic view of a high-strength pipeline expansion joint for an electric pipeline;
FIG. 2 is a cross-sectional view of a high strength pipe expansion joint for an electrical pipe according to the present utility model;
FIG. 3 is a schematic view of the connection structure of the first flange plate and the first inner liner sleeve according to the present utility model;
FIG. 4 is a schematic view of a connection structure of a second flange plate and a second inner liner according to the present utility model;
FIG. 5 is a schematic view of a seal limiting sliding sleeve structure of the utility model;
In the figure, 1, a corrugated pipe; 2, a first flange plate, 3, a second flange plate, 4, a pull rod, 5, a positioning nut, 6, a first inner bushing, 7, a second inner bushing, 8, a sealing limit sliding sleeve, 9, a first sealing gasket, 10, a second sealing gasket, 11, a first convex ring, 12, a first annular groove, 13, a first sealing ring, 14, a positioning groove, 15, a second convex ring, 16, a second annular groove, 17, a second sealing ring, 18, a bolt hole, 19, a positioning rod, 20, a clamping groove, 21, an L-shaped sealing gasket, 22, a long screw, 23, a third annular groove, 24 and a third sealing ring.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
The utility model provides a high-strength pipeline expansion joint for an electric pipeline, which is shown in figures 1 to 5, and comprises a corrugated pipe 1, wherein a first flange plate 2 is fixedly arranged at one end of the corrugated pipe 1, a second flange plate 3 is fixedly arranged at the other end of the corrugated pipe 1, the first flange plate 2 and the second flange plate 3 are connected through a plurality of pull rods 4, a plurality of positioning nuts 5 matched with the first flange plate 2 and the second flange plate 3 are arranged at both ends of the pull rods 4, a first inner liner 6 positioned in the corrugated pipe 1 is fixedly arranged at one end of the first flange plate 2, a second inner liner 7 positioned in the corrugated pipe 1 and the first inner liner 6 is fixedly arranged at one end of the second flange plate 3, a sealing limit sliding sleeve 8 which is slidably connected in the first inner liner 6 is arranged at one end of the second inner liner 7 away from the second flange plate 3, a first sealing gasket 9 is fixedly arranged at one end of the first flange plate 2 away from the corrugated pipe 1, and a second sealing gasket 10 is fixedly arranged at one end of the second flange plate 3 away from the corrugated pipe 1;
When the corrugated pipe is used, the first flange plate 2 and the second flange plate 3 are connected with a steam pipeline, the tightness of connection can be improved through the first sealing gasket 9 and the second sealing gasket 10, and steam can be isolated through the first inner bushing 6, the second inner bushing 7 and the sealing limit sliding sleeve 8, so that the influence of the steam on the service life of the corrugated pipe 1 caused by direct impact of the steam on the corrugated pipe 1 is avoided;
as shown in fig. 1 to 5, a first convex ring 11 is fixedly arranged at one end of the inner surface of a first inner bushing 6, a first annular groove 12 is formed in the inner surface of the first convex ring 11, a first sealing ring 13 which is slidably connected with the outer surface of a second inner bushing 7 is arranged in the first annular groove 12, a plurality of positioning grooves 14 are formed in one end of the inner side edge of the first inner bushing 6, a second convex ring 15 is fixedly arranged at one end of the outer surface of the second inner bushing 7, a second annular groove 16 is formed in the outer surface of the second convex ring 15, a second sealing ring 17 which is slidably connected with the inner surface of the first inner bushing 6 is arranged in the second annular groove 16, a plurality of bolt holes 18 are formed in one side edge of one end of the second inner bushing 7, a plurality of positioning rods 19 which are inserted in the positioning grooves 14 and slidably connected with the positioning grooves are fixedly arranged in one side edge of one end of the second flange plate 3, a clamping groove 20 which is matched with the second inner bushing 7 is formed in one end of the sealing limiting sliding sleeve 8, an L-shaped sealing gasket 21 is arranged on the inner surface of the clamping groove 20, a plurality of long screws 22 which are matched with the bolt holes 18 are alternately arranged on the sealing limiting sliding sleeve 8, a third sealing ring 23 which is arranged in the middle position of the outer surface of the sealing limiting sliding sleeve 8, and the inner surface of the third annular groove 23 is arranged in the third annular groove 23, and the inner surface of the third sealing sleeve 6 is slidably connected with the third inner groove 23;
Realize sliding seal through sealing washer one 13, sealing washer two 17 and sealing washer three 24, can improve the leakproofness of connection, sealed spacing sliding sleeve 8 sliding connection in the inside of first inner liner 6, can strengthen the connection leakproofness on the one hand, realize the water conservancy diversion to steam, can form spacingly with first inner liner 6 simultaneously, through constant head tank 14 and locating lever 19, can realize further limiting displacement, avoid the expansion joint to take place radial offset, improve the bulk strength and the stability of expansion joint.
In operation, the electric steam pipeline connecting device can be connected with an electric steam pipeline through the corrugated pipe, the first flange plate and the second flange plate, elastic compensation of the pipeline can be achieved, the service life of the steam pipeline is prolonged, the sealing performance of the connection of the first flange plate and the second flange plate with the steam pipeline can be improved through the first sealing gasket and the second sealing gasket, the steam can be isolated through the first inner bushing, the second inner bushing and the sealing limit sliding sleeve, the influence of the steam on the service life of the corrugated pipe due to the fact that the steam directly acts on the corrugated pipe is avoided, the sealing performance of the connection of the first inner bushing, the second inner bushing and the sealing limit sliding sleeve can be improved through the sealing limit sliding sleeve, the positioning groove and the positioning rod, and the overall strength and stability of the expansion joint can be improved.
Claims (5)
1. A high-strength pipeline expansion joint for an electric pipeline comprises a corrugated pipe (1) and is characterized in that a first flange plate (2) is fixedly arranged at one end of the corrugated pipe (1), a second flange plate (3) is fixedly arranged at the other end of the corrugated pipe (1), the first flange plate (2) is connected with the second flange plate (3) through a plurality of pull rods (4), a plurality of positioning nuts (5) matched with the first flange plate (2) and the second flange plate (3) are arranged at two ends of the pull rods (4), a first inner bushing (6) located inside the corrugated pipe (1) is fixedly arranged at one end of the first flange plate (2), a second inner bushing (7) located inside the corrugated pipe (1) and the first inner bushing (6) is fixedly arranged at one end of the second flange plate (3), and a sealing limit sliding sleeve (8) slidably connected inside the first inner bushing (6) is arranged at one end, far away from the second flange plate (3), of the second inner bushing (7).
2. The high-strength pipeline expansion joint for the electric pipeline according to claim 1, wherein a first sealing gasket (9) is fixedly arranged at one end, far away from the corrugated pipe (1), of the first flange plate (2), and a second sealing gasket (10) is fixedly arranged at one end, far away from the corrugated pipe (1), of the second flange plate (3).
3. The high-strength pipeline expansion joint for the electric pipeline according to claim 1, wherein one end of the inner surface of the first inner bushing (6) is fixedly provided with a first convex ring (11), the inner surface of the first convex ring (11) is provided with a first annular groove (12), the inner part of the first annular groove (12) is provided with a first sealing ring (13) which is in sliding connection with the outer surface of the second inner bushing (7), and one end of the inner side edge of the first inner bushing (6) is provided with a plurality of positioning grooves (14).
4. The high-strength pipeline expansion joint for the electric pipeline according to claim 3, wherein a second convex ring (15) is fixedly arranged at one end of the outer surface of the second inner bushing (7), an annular groove (16) is formed in the outer surface of the second convex ring (15), a second sealing ring (17) which is slidably connected with the inner surface of the first inner bushing (6) is arranged in the annular groove (16), a plurality of bolt holes (18) are formed in the side edge of one end of the second inner bushing (7), and a plurality of positioning rods (19) which are inserted into the positioning grooves (14) and slidably connected with the positioning grooves are fixedly arranged on the side edge of one end of the second flange plate (3).
5. The high-strength pipeline expansion joint for the electric pipeline according to claim 4, wherein a clamping groove (20) matched with the second inner bushing (7) is formed in one end of the sealing limit sliding sleeve (8), an L-shaped sealing gasket (21) is arranged on the inner surface of the clamping groove (20), a plurality of long screws (22) matched with the bolt holes (18) are inserted in the sealing limit sliding sleeve (8), an annular groove III (23) is formed in the middle position of the outer surface of the sealing limit sliding sleeve (8), and a sealing ring III (24) in sliding connection with the inner surface of the first inner bushing (6) is arranged in the annular groove III (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420903193.0U CN222458822U (en) | 2024-04-28 | 2024-04-28 | High-strength pipeline expansion joint for electric pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420903193.0U CN222458822U (en) | 2024-04-28 | 2024-04-28 | High-strength pipeline expansion joint for electric pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222458822U true CN222458822U (en) | 2025-02-11 |
Family
ID=94435946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420903193.0U Active CN222458822U (en) | 2024-04-28 | 2024-04-28 | High-strength pipeline expansion joint for electric pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222458822U (en) |
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2024
- 2024-04-28 CN CN202420903193.0U patent/CN222458822U/en active Active
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