CN216813382U - Compound seal maintenance-free sleeve compensator - Google Patents
Compound seal maintenance-free sleeve compensator Download PDFInfo
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- CN216813382U CN216813382U CN202220169713.0U CN202220169713U CN216813382U CN 216813382 U CN216813382 U CN 216813382U CN 202220169713 U CN202220169713 U CN 202220169713U CN 216813382 U CN216813382 U CN 216813382U
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- outer sleeve
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Abstract
The utility model relates to a composite sealing maintenance-free 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 a sleeve flange is arranged at the right end of the second outer sleeve and is connected with a gland flange through a bolt and nut assembly; 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 packing cavity, and the upper end of the material injection nozzle is provided with a sealing cover connected through threads. When the sealing ring is installed, the pressing ring is pressed against the sealing filler through the bolt and nut assembly, and the retaining ring can effectively prevent medium particles from entering the core pipe interlayer, so that the abrasion is reduced, and the sealing ring and the sealing filler are protected; the maintenance-free function is realized by supplementing and filling the filler through the material filling nozzle. The utility model has the advantages of good sealing performance, difficult leakage, low maintenance cost, long service life and stable and reliable work.
Description
Technical Field
The utility model relates to the technical field of pipeline compensators, in particular to a composite sealing maintenance-free sleeve compensator.
Background
The existing pipeline for long-distance medium transportation 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 pipe, the compensator is usually thick and strong. 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 sleeve compensator.
The purpose of the utility model is realized by adopting the following technical scheme:
a composite sealing maintenance-free 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 and is connected with a gland flange through a bolt and nut assembly, a pressing ring is arranged on the left side of the gland flange, and the pressing ring extends into the packing cavity and is in extrusion type close 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 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 the preferred technical scheme of the utility model, the gland flange and the pressure ring are welded and fixed.
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.
The utility model has the beneficial effects that: compared with the prior art, the gland flange and the pressure ring are pressed tightly to seal packing through the bolt and nut assembly during installation. 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 good 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 and a material injection nozzle.
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 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 pipe 15, a sealing filler 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, a press ring 9 is arranged on the left side of the gland flange 10, and the press ring 9 extends into the packing cavity and forms extrusion type close contact connection with the sealing filler 7; 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.
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; the gland flange 10 is welded and fixed with the pressure ring 9.
A plurality of sealing grooves are formed in the left side of the packing cavity of the second outer sleeve 6, 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 pipe connection 16 to the left pipe connection 1.
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 (6)
1. The utility model provides a compound seal non-maintaining 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 and is connected with a gland flange through a bolt and nut assembly, a pressing ring is arranged on the left side of the gland flange, and the pressing ring extends into the packing cavity and is in extrusion type close 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 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.
3. The composite seal maintenance-free 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.
4. The composite seal maintenance-free sleeve compensator of claim 1, wherein: and the gland flange is welded and fixed with the pressure ring.
5. The composite seal maintenance-free 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 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169713.0U CN216813382U (en) | 2022-01-21 | 2022-01-21 | Compound seal maintenance-free sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220169713.0U CN216813382U (en) | 2022-01-21 | 2022-01-21 | Compound seal maintenance-free sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216813382U true CN216813382U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220169713.0U Active CN216813382U (en) | 2022-01-21 | 2022-01-21 | Compound seal maintenance-free sleeve compensator |
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| CN (1) | CN216813382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095442A (en) * | 2022-06-30 | 2022-09-23 | 广西玉柴机器股份有限公司 | Sectional type exhaust pipe with sealing filler and sealing method thereof |
-
2022
- 2022-01-21 CN CN202220169713.0U patent/CN216813382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095442A (en) * | 2022-06-30 | 2022-09-23 | 广西玉柴机器股份有限公司 | Sectional type exhaust pipe with sealing filler and sealing method thereof |
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