CN216896342U - Composite sealing maintenance-free self-adjusting sleeve compensator - Google Patents
Composite sealing maintenance-free self-adjusting sleeve compensator Download PDFInfo
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- CN216896342U CN216896342U CN202220196589.7U CN202220196589U CN216896342U CN 216896342 U CN216896342 U CN 216896342U CN 202220196589 U CN202220196589 U CN 202220196589U CN 216896342 U CN216896342 U CN 216896342U
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Abstract
The utility model relates to a composite sealing maintenance-free self-adjusting sleeve compensator which comprises a left connecting pipe, a first outer sleeve, a second outer sleeve, a core pipe and a right connecting pipe, wherein sealing filler is arranged between the second outer sleeve and the core pipe; and the pipe wall of the second outer sleeve is provided with a material injection nozzle. The gland flange disclosed by the utility model is pre-tensioned through the spring, and can automatically adjust and keep a certain pressure to compress the packing after the packing is consumed; the baffle ring can effectively prevent medium particles from entering the interlayer of the core pipe, thereby reducing abrasion and protecting the sealing ring and the sealing filler; the second outer sleeve is provided with a material injection nozzle, and the filler can be supplemented and injected through the material injection nozzle, so that the maintenance-free function is realized. The utility model has better sealing performance, long service life and higher working stability and reliability.
Description
Technical Field
The utility model relates to the technical field of pipeline compensators, in particular to a composite sealing maintenance-free self-adjusting sleeve compensator.
Background
The existing pipeline for long-distance medium transmission generally needs to be provided with a plurality of compensators for compensating the expansion of the pipeline in sections. To ensure the safety of the pipeline, the compensator is generally thicker in wall and higher in strength. According to the working mode that the pipeline compensator bears the medium pressure, the pipeline compensator is generally divided into an internal pressure type compensator and an external pressure type compensator, the internal pressure type compensator is easily twisted in the expansion and contraction process due to the action of the medium pressure from an inner cavity, the working stability is low, and the sealing performance is not ideal.
At present, in the use process of the existing sleeve compensator, because an interlayer exists between a core tube and an outer sleeve of the compensator, medium particles in a pipeline easily enter a gap of the interlayer, and the expansion amount generated by the pipeline is large, the sealing filler of the compensator easily leaks due to abrasion, so that the compensator needs to be regularly maintained or replaced, the service life of the compensator is short, the workload of maintenance and replacement is large, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a composite sealing maintenance-free self-adjusting sleeve compensator which is good in sealing performance and safe and reliable to use.
The purpose of the utility model is realized by adopting the following technical scheme:
a composite sealing maintenance-free self-adjusting sleeve compensator comprises a left connecting pipe, a first outer sleeve, a second outer sleeve, a core pipe and a right connecting pipe, wherein the left connecting pipe is welded and fixed with the first outer sleeve;
a packing cavity is arranged between the inner wall of the second outer sleeve and the outer surface of the core pipe, sealing packing is arranged in the packing cavity, a sleeve flange is arranged at the right end of the second outer sleeve, the sleeve flange is connected with a gland flange through a bolt and nut assembly, and a spring is arranged between the nut and the gland flange; a pressing ring is arranged on the left side of the gland flange, extends into the packing cavity and is in extrusion type tight contact connection with the sealing packing;
and the pipe wall of the second outer sleeve is provided with a material injection nozzle, the lower end of the material injection nozzle is communicated with the filling cavity, and the upper end of the material injection nozzle is provided with a sealing cover connected through threads.
As the preferable technical scheme of the utility model, an elastic gasket and a flat gasket are sequentially arranged between the nut and the spring, and the nut is screwed during installation to enable the spring to generate tension.
As a preferred technical scheme of the utility model, the outer diameter of the left connecting pipe is smaller than the inner diameter of the first outer sleeve, the right end of the left connecting pipe is provided with an arc-shaped bell mouth, and the left connecting pipe is welded and fixed with the first outer sleeve through the bell mouth.
As a preferred technical scheme of the utility model, a baffle ring is arranged between the left end of the core tube and the inner wall of the first outer sleeve.
As a preferable technical scheme of the utility model, a plurality of sealing grooves are arranged on the left side of the packing cavity of the second outer sleeve, wherein Y-shaped sealing rings are arranged in the sealing groove on the leftmost side, and O-shaped sealing rings are arranged in the other sealing grooves.
As a preferred technical scheme of the utility model, the flow direction of the medium in the compensator is in the direction from the right connecting pipe to the left connecting pipe.
As the preferred technical scheme of the utility model, the gland flange and the pressure ring are welded and fixed.
The utility model has the beneficial effects that: compared with the prior art, the gland flange is pre-tensioned through the bolt and nut assembly and the spring, and the gland flange can automatically adjust and keep a certain pressure to compress the packing after the packing is consumed. The compensator is provided with a plurality of sealing rings and sealing filler, and a baffle ring is arranged between the core tube and the first outer sleeve, so that medium particles in the pipeline can be effectively prevented from entering the interlayer of the core tube, the abrasion is reduced, and the sealing rings and the sealing filler are protected.
The second outer sleeve is provided with the material injection nozzle, and the filler can be supplemented and injected through the material injection nozzle, so that the compensator is prevented from being disassembled and injected or the sealing filler is prevented from being replaced, and the maintenance-free function of the compensator is realized. The utility model has the advantages of better sealing performance, difficult leakage, low maintenance cost, long service life and higher working stability and reliability.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. the device comprises a left connecting pipe, 2, a first outer sleeve, 3, a baffle ring, 4, a Y-shaped sealing ring, 5, an O-shaped sealing ring, 6, a second outer sleeve, 7, sealing filler, 8, a sleeve flange, 9, a pressing ring, 10, a gland flange, 11, a bolt and nut assembly, 15, a core pipe, 16, a right connecting pipe, 17, a material injection nozzle, 18 and a spring.
Detailed Description
The utility model will be further described with reference to the following detailed description of embodiments and with reference to the accompanying drawings in which:
as shown in fig. 1, a composite sealing maintenance-free self-adjusting sleeve compensator comprises a left connection pipe 1, a first outer sleeve 2, a second outer sleeve 6, a core pipe 15 and a right connection pipe 16, wherein the left connection pipe 1 is welded and fixed with the first outer sleeve 2, the first outer sleeve 2 is welded and fixed with the second outer sleeve 6, the core pipe 15 is sleeved in the second outer sleeve 6, the left end of the core pipe 15 extends into the inner cavity of the first outer sleeve 2, and the right end of the core pipe 15 is welded and fixed with the right connection pipe 16.
A packing cavity is arranged between the inner wall of the second outer sleeve 6 and the outer surface of the core tube 15, a sealing packing 7 is arranged in the packing cavity, a sleeve flange 8 is arranged at the right end of the second outer sleeve 6, the sleeve flange 8 is connected with a gland flange 10 through a bolt and nut assembly 11, and a spring 18 is arranged between a nut of the bolt and nut assembly 11 and the gland flange 10; the left side of the gland flange 10 is provided with a pressing ring 9, and the pressing ring 9 extends into the packing cavity and forms extrusion type tight contact connection with the sealing packing 7.
In this embodiment, an elastic washer and a flat washer are sequentially disposed between the nut of the bolt-nut assembly 11 and the spring 18, and the nut is screwed during installation to enable the spring 18 to generate a tension force. And a material injection nozzle 17 is arranged on the pipe wall of the second outer sleeve 6, the lower end of the material injection nozzle 17 is communicated with the filling cavity, and a sealing cover connected through threads is arranged at the upper end of the material injection nozzle 17. The utility model can supplement and fill the filler through the material filling nozzle 17, and avoids the filling of the compensator by disassembling or replacing the sealing filler, thereby realizing the maintenance-free function of the compensator.
In this embodiment, the outer diameter of the left connection pipe 1 is smaller than the inner diameter of the first outer sleeve 2, the right end of the left connection pipe 1 is provided with an arc-shaped bell mouth, and the left connection pipe 1 is welded and fixed with the first outer sleeve 2 through the bell mouth. A baffle ring 3 is arranged between the left end of the core tube 15 and the inner wall of the first outer sleeve 2, and medium particles in the pipeline can be effectively prevented from entering the interlayer of the core tube through the baffle ring 3, so that abrasion is reduced, and a sealing ring and sealing filler are protected.
In this embodiment, the left side of the packing cavity of the second outer sleeve 6 is provided with a plurality of sealing grooves, wherein a Y-shaped sealing ring 4 is arranged in the leftmost sealing groove, and O-shaped sealing rings 5 are arranged in other sealing grooves. The flow direction of the medium in the compensator is from the right connecting pipe 16 to the left connecting pipe 1; and the gland flange 10 is fixedly welded with the pressure ring 9.
The above-mentioned embodiments are only used for illustrating the conception and technical features of the present invention, and the purpose thereof is to make the technical solution and implementation manner of the present invention known to those skilled in the art, and the protection scope of the present invention is not limited thereby. All equivalents and modifications of the technical solution according to the present invention are intended to be covered by the scope of the claims.
Claims (7)
1. The utility model provides a compound seal non-maintaining self-interacting sleeve compensator, includes that left side is taken over, first outer tube, second outer tube, core pipe and right side are taken over, characterized by: the left connecting pipe is welded and fixed with the first outer sleeve, the first outer sleeve is welded and fixed with the second outer sleeve, the core pipe is sleeved in the second outer sleeve, the left end of the core pipe extends into the inner cavity of the first outer sleeve, and the right end of the core pipe is welded and fixed with the right connecting pipe;
a packing cavity is arranged between the inner wall of the second outer sleeve and the outer surface of the core pipe, sealing packing is arranged in the packing cavity, a sleeve flange is arranged at the right end of the second outer sleeve, the sleeve flange is connected with a gland flange through a bolt and nut assembly, and a spring is arranged between the nut and the gland flange; a pressing ring is arranged on the left side of the gland flange, extends into the packing cavity and is in extrusion type tight contact connection with the sealing packing;
and the pipe wall of the second outer sleeve is provided with a material injection nozzle, the lower end of the material injection nozzle is communicated with the filling cavity, and the upper end of the material injection nozzle is provided with a sealing cover connected through threads.
2. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: an elastic gasket and a flat gasket are sequentially arranged between the nut and the spring, and the nut is screwed during installation to enable the spring to generate tension.
3. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: the outer diameter of the left connecting pipe is smaller than the inner diameter of the first outer sleeve, an arc-shaped horn mouth is formed in the right end of the left connecting pipe, and the left connecting pipe is welded and fixed with the first outer sleeve through the horn mouth.
4. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: and a baffle ring is arranged between the left end of the core tube and the inner wall of the first outer sleeve.
5. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: a plurality of sealing grooves are formed in the left side of the second outer sleeve packing cavity, Y-shaped sealing rings are arranged in the leftmost sealing groove, and O-shaped sealing rings are arranged in other sealing grooves.
6. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: the flow direction of the medium in the compensator is from the right connecting pipe to the left connecting pipe.
7. The composite seal maintenance-free self-adjusting sleeve compensator of claim 1, wherein: and the gland flange is welded and fixed with the pressure ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196589.7U CN216896342U (en) | 2022-01-22 | 2022-01-22 | Composite sealing maintenance-free self-adjusting sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196589.7U CN216896342U (en) | 2022-01-22 | 2022-01-22 | Composite sealing maintenance-free self-adjusting sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216896342U true CN216896342U (en) | 2022-07-05 |
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ID=82180839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220196589.7U Active CN216896342U (en) | 2022-01-22 | 2022-01-22 | Composite sealing maintenance-free self-adjusting sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216896342U (en) |
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2022
- 2022-01-22 CN CN202220196589.7U patent/CN216896342U/en active Active
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