CN204164550U - A kind of pipeline extension device of triple seal structure - Google Patents
A kind of pipeline extension device of triple seal structure Download PDFInfo
- Publication number
- CN204164550U CN204164550U CN201420600669.XU CN201420600669U CN204164550U CN 204164550 U CN204164550 U CN 204164550U CN 201420600669 U CN201420600669 U CN 201420600669U CN 204164550 U CN204164550 U CN 204164550U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- interior pipe
- pipe
- seal
- extension device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 11
- 239000003566 sealing material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model relates to Pipe installing equipment technical field, disclose a kind of pipeline extension device of triple seal structure, it comprises interior pipe, adapter, outer sleeve, the adpting flange be connected with pipeline, one end of outer sleeve and a splaying of interior pipe are socketed, the other end and the adapter of outer sleeve are tightly connected, the top, one end that interior pipe and outer sleeve socket-connect is provided with ladder pipe, lead for gap between the outer wall of ladder pipe and the inwall of outer sleeve and coordinate, the outer wall of ladder pipe is provided with two annular seal grooves, rectangular seal is embedded with in one of them seal groove, y-type seal ring is embedded with in another seal groove, stuffing box packing part is provided with in the cavity that interior pipe and the outer sleeve section of socket-connecting are formed.The utility model is provided with triple seal structure, good sealing effect, and service behaviour is safe and reliable; The axial stable movement of interior pipe registration during compensating movement, interior pipe, flexibly, the sealing material even wearing between interior pipe and outer sleeve, significantly improves working life of the present utility model.
Description
Technical field
The utility model relates to Pipe installing equipment technical field, specifically the pipeline extension device of the reliable a kind of triple seal structure of performance safety.
Background technique
The features such as pipeline extension device is a kind of pipe safety device of general structure, and be mainly used in compensating the axial displacement that causes of pipe stress and radially reverse, it is simple that it has structure, and bearing capacity is strong, and the little and compensation rate of flow resistance is large.Existing pipeline extension device is all insert seal ring or stuffing box packing in the axial seal structure between interior pipe and outer sleeve mostly, with gland, sealing material is compressed formation auxiliary seal in axial seal structure, carry out the sealing between interior pipe and outer sleeve by seal ring or stuffing box packing.This kind of sealing configuration is after pipeline long-time running, and relative movement makes interior pipe produce corresponding wearing and tearing to the auxiliary packing material between outer sleeve frequently, must cause seal failure when wearing and tearing reach extreme value and leak.The sealing problem of pipeline extension device, not only relates to energy-conservation and pollutes, and being related to the safety of pipe-networks engineering and permanently effective operation.
Model utility content
The purpose of this utility model is to provide a kind of pipeline extension device of triple seal structure, and to solve, existing pipeline extension device sealing material after pipeline long-time running easily weares and teares, seal failure, brings the problem of potential safety hazard.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of pipeline extension device of triple seal structure, it comprises interior pipe, adapter, outer sleeve, the adpting flange be connected with pipeline, one end of outer sleeve and a splaying of interior pipe are socketed, the other end and the adapter of outer sleeve are tightly connected, the top, one end that described interior pipe and outer sleeve socket-connect is provided with ladder pipe, lead for gap between the outer wall of described ladder pipe and the inwall of described outer sleeve and coordinate, the outer wall of described ladder pipe is provided with two annular seal grooves, rectangular seal is embedded with in one of them seal groove, y-type seal ring is embedded with in another seal groove, stuffing box packing part is provided with in the cavity that described interior pipe and the described outer sleeve section of socket-connecting are formed.
As further improvement of the utility model, in the middle part of described outer sleeve, inwall is provided with boss, and in forming, pipe moves axially position-limit mechanism.
Further improve as of the present utility model, end, one end outer wall that described outer sleeve and described interior pipe socket-connect is provided with flange, and described flange is connected with the supported flange be arranged on outer wall of inner tube by bolt assembly.
Further improve as of the present utility model, described stuffing box packing part is the composition of flexible graphite stuffing and graphite annulus.
The utility model has following beneficial effect:
(1), the utility model is provided with ladder pipe in the socket end end of described interior pipe and described outer sleeve, the y-type seal ring of setting-in in the annular seal groove of ladder pipe, and the lip limit relying on it to open is affixed on sealing pair coupled face; During without interior pressure, the distortion of procheilon and produce very little contact pressure; When sealing, the every bit contacted with sealing medium all has the normal pressure equal with pressure medium, so will be subject to axial compression bottom lip circle, lip will be subject to circumference compression, contact broaden with sealing surface, and contact stress increases simultaneously; When interior pressure raises again, distribution form and the size of contact change further, and lip coordinates tightr with sealing surface, its sealability is strengthened.In another annular seal groove of described ladder pipe, the rectangular seal of setting-in serves the effect supporting and prevent outside dirt from entering the cavity that described interior pipe and outer sleeve belled part are formed, can stuffing box packing part in available protecting cavity not contaminated.The utility model is provided with triple seal structure, and sealing effect is better, and service behaviour is safe and reliable;
(2), described interior pipe adopts cascade guide structure, in the middle part of described outer sleeve, inwall is provided with positive stop lug boss, significantly improve the positioning precision of interior pipe, the coaxial cooperation precision of pipe and outer sleeve in improving, during compensating movement axial motion more steadily, more flexible, sealing material even wearing between interior pipe and outer sleeve, significantly improves working life of the present utility model;
(3), the utility model structure is simple, easy to manufacture, easy for installation.
Accompanying drawing explanation
Fig. 1 of the present utility modelly partly cuts open structural representation;
In figure: 1, adpting flange, 2, interior pipe, 3, supported flange, 4, stuffing box packing part, 5, outer sleeve, 6, rectangular seal, 7, y-type seal ring, 8, adapter, 9, bolt assembly, 10, boss, 11, flange, 12, seal groove, 13, ladder pipe.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The pipeline extension device of a kind of triple seal structure as shown in Figure 1, it comprises interior pipe 2, adapter 8, outer sleeve 5, the adpting flange 1 be connected with pipeline, one end of outer sleeve 5 and a splaying of interior pipe 2 are socketed, the other end and the adapter 8 of outer sleeve 5 are tightly connected, the top, one end that interior pipe 2 and outer sleeve 5 socket-connect is provided with ladder pipe 13, lead for gap between the outer wall of ladder pipe 13 and the inwall of outer sleeve 5 and coordinate, the outer wall of ladder pipe 13 is provided with two annular seal grooves 12, rectangular seal 6 is embedded with in one of them seal groove 12, y-type seal ring 7 is embedded with in another seal groove 12, the stuffing box packing part 4 be made up of the composition of flexible graphite stuffing and graphite annulus is provided with in the cavity that interior pipe 2 and outer sleeve 5 section of socket-connecting are formed.
In the middle part of outer sleeve 5, inwall is provided with boss 10, and in forming, pipe 2 moves axially position-limit mechanism.End, one end outer wall that outer sleeve 5 and interior pipe 2 socket-connect is provided with flange 11, and flange 11 is connected with the supported flange 3 be arranged on interior pipe 2 outer wall by bolt assembly 9.
The stuffing box packing part 4 of filling in the cavity that the utility model is formed by interior pipe 2 and outer sleeve 5 section of socket-connecting, rectangular seal 6, y-type seal ring 7 constitute triple seal structure, make sealability of the present utility model high, safe and reliable, extend the working life of Sealing.
Claims (4)
1. the pipeline extension device of a triple seal structure, it comprises interior pipe (2), adapter (8), outer sleeve (5), the adpting flange (1) be connected with pipeline, one end of outer sleeve (5) and a splaying of interior pipe (2) are socketed, the other end and the adapter (8) of outer sleeve (5) are tightly connected, it is characterized in that: the top, one end that described interior pipe (2) and outer sleeve (5) socket-connect is provided with ladder pipe (13), lead for gap between the outer wall of described ladder pipe (13) and the inwall of described outer sleeve (5) and coordinate, the outer wall of described ladder pipe (13) is provided with two annular seal grooves (12), rectangular seal (6) is embedded with in one of them seal groove (12), y-type seal ring (7) is embedded with in another seal groove (12), stuffing box packing part (4) is provided with in the cavity that described interior pipe (2) and described outer sleeve (5) section of socket-connecting are formed.
2. the pipeline extension device of a kind of triple seal structure according to claim 1, is characterized in that: described outer sleeve (5) middle part inwall is provided with boss (10), and in forming, pipe (2) moves axially position-limit mechanism.
3. the pipeline extension device of a kind of triple seal structure according to claim 1 and 2, it is characterized in that: end, one end outer wall that described outer sleeve (5) and described interior pipe (2) socket-connect is provided with flange (11), and described flange (11) is connected with the supported flange (3) be arranged on interior pipe (2) outer wall by bolt assembly (9).
4. the pipeline extension device of a kind of triple seal structure according to claim 1, is characterized in that: the composition that described stuffing box packing part (4) is flexible graphite stuffing and graphite annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600669.XU CN204164550U (en) | 2014-10-17 | 2014-10-17 | A kind of pipeline extension device of triple seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420600669.XU CN204164550U (en) | 2014-10-17 | 2014-10-17 | A kind of pipeline extension device of triple seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164550U true CN204164550U (en) | 2015-02-18 |
Family
ID=52538237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420600669.XU Expired - Fee Related CN204164550U (en) | 2014-10-17 | 2014-10-17 | A kind of pipeline extension device of triple seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164550U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534211A (en) * | 2014-12-31 | 2015-04-22 | 刘旸 | Pipeline connecting device |
| CN105371044A (en) * | 2015-12-17 | 2016-03-02 | 安徽盛运环保工程有限公司 | Large-diameter high-temperature-resistant one-way expansion joint |
| CN108131523A (en) * | 2017-12-30 | 2018-06-08 | 江苏恒丰波纹管有限公司 | Three-dimensional ball joint compensator with sealing device |
| CN110486551A (en) * | 2019-07-19 | 2019-11-22 | 宁波天生密封件有限公司 | A kind of self-energized seal attachment device |
| CN110645428A (en) * | 2019-09-14 | 2020-01-03 | 江苏永力管道有限公司 | Multifunctional integrated high-pressure rotary joint |
| CN110657308A (en) * | 2019-09-14 | 2020-01-07 | 江苏永力管道有限公司 | Combined multi-way end face sealing rotary compensator |
| CN110671557A (en) * | 2019-09-14 | 2020-01-10 | 江苏永力管道有限公司 | Pipeline compensator adopting combined sealing structure |
| CN111594681A (en) * | 2020-06-19 | 2020-08-28 | 江苏贝特管件有限公司 | End face sealing structure of rotary compensator and rotary compensator |
| CN113048301A (en) * | 2019-12-29 | 2021-06-29 | 江苏恒丰波纹管有限公司 | Three-dimensional compensator with novel sealing structure |
-
2014
- 2014-10-17 CN CN201420600669.XU patent/CN204164550U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534211A (en) * | 2014-12-31 | 2015-04-22 | 刘旸 | Pipeline connecting device |
| CN105371044A (en) * | 2015-12-17 | 2016-03-02 | 安徽盛运环保工程有限公司 | Large-diameter high-temperature-resistant one-way expansion joint |
| CN108131523A (en) * | 2017-12-30 | 2018-06-08 | 江苏恒丰波纹管有限公司 | Three-dimensional ball joint compensator with sealing device |
| CN110486551A (en) * | 2019-07-19 | 2019-11-22 | 宁波天生密封件有限公司 | A kind of self-energized seal attachment device |
| CN110645428A (en) * | 2019-09-14 | 2020-01-03 | 江苏永力管道有限公司 | Multifunctional integrated high-pressure rotary joint |
| CN110657308A (en) * | 2019-09-14 | 2020-01-07 | 江苏永力管道有限公司 | Combined multi-way end face sealing rotary compensator |
| CN110671557A (en) * | 2019-09-14 | 2020-01-10 | 江苏永力管道有限公司 | Pipeline compensator adopting combined sealing structure |
| WO2021047669A1 (en) * | 2019-09-14 | 2021-03-18 | 江苏永力管道有限公司 | Combined multi-end-face sealing rotary compensator |
| CN113048301A (en) * | 2019-12-29 | 2021-06-29 | 江苏恒丰波纹管有限公司 | Three-dimensional compensator with novel sealing structure |
| CN111594681A (en) * | 2020-06-19 | 2020-08-28 | 江苏贝特管件有限公司 | End face sealing structure of rotary compensator and rotary compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |