CN101975317A - Stuffing box type compensating joint - Google Patents
Stuffing box type compensating joint Download PDFInfo
- Publication number
- CN101975317A CN101975317A CN2010105110847A CN201010511084A CN101975317A CN 101975317 A CN101975317 A CN 101975317A CN 2010105110847 A CN2010105110847 A CN 2010105110847A CN 201010511084 A CN201010511084 A CN 201010511084A CN 101975317 A CN101975317 A CN 101975317A
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- CN
- China
- Prior art keywords
- stuffing box
- gland
- compensating joint
- extension tube
- fixing bolt
- 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.)
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Abstract
The invention discloses a stuffing box type compensating joint comprising a body and an extension tube sheathed in the body, wherein a gland is arranged between the excircle of the extension tube and the body, and the gland, the excircle of the extension tube and the body form the stuffing box; two ends of the stuffing box are both provided with bushes, and rubber seal rings and graphite packing layers are arranged at intervals between the bushes; a fixing bolt penetrates through the space between the gland and the body, and a fixing nut is arranged by being cooperated with the fixing bolt; the stuffing box type compensating joint causes the gland to press the seal ring by screwing bolts and nuts, so that the seal ring generates elastic deformation to extrude the body and the extension tube to achieve the purpose of sealing. Thus, the invention ensures that the extension tube slides relatively to the body without leaking, and has simple structure, good sealing effect and high safe reliability.
Description
Technical field
The present invention relates to a kind of pipe coupling, and be particularly related to a kind of stuffing box formula compensating joint of good sealing effect.
Background technique
At present, various pipe-line systems are for example: gas pipe line, water supply line, oil transport pipelines etc. are applied in the daily life widely, but in the process of deployment of various pipe-line systems, often to consider because surface subsidence is serious, vibrations are big, with a varied topography and seasonal variations and day and night big the and pipeline deflection that produces of the temperature difference and expand with heat and contract with cold etc. all can pipeline be produced serious influence, general solution is that axial displacement and the deflection angle off-centre that compensating joint remedies pipeline is set in the process of deployment of pipeline, but like this can be because of the pipe coupling poor sealing, cause leakage, may cause bigger security incident, therefore high to its sealing and reliability requirement, traditional pipe coupling ubiquity complex structure, the shortcoming that sealing effect is bad and safety reliability is not high.
Summary of the invention
The object of the present invention is to provide a kind of stuffing box formula compensating joint, it has simple in structure, the characteristics that good sealing effect and safety reliability are high.
The objective of the invention is to be achieved through the following technical solutions:
A kind of stuffing box formula compensating joint, it comprises body and is sheathed on intrinsic telescopic pipe, wherein, be provided with gland between described telescopic pipe cylindrical and the body, described gland, telescopic pipe cylindrical and body form stuffing box, be provided with seal arrangement in the described stuffing box, and described gland are connected with body by fastening piece.
Two ends in the described stuffing box are provided with lining.
Described seal arrangement is arranged between the lining, and it is rubber seal and the graphite packing layer that is provided with at interval.
Described fastening piece comprises the fixing bolt that is arranged between body and the gland, cooperates fixing bolt to be provided with set screw nut.
Beneficial effect of the present invention is, described stuffing box formula compensating joint is in the stuffing box that is formed by body, gland and telescopic pipe, be arranged at intervals with rubber seal and graphite packing layer in the described stuffing box, by tighting a bolt and nut makes gland compress seal ring, thereby make seal ring generation resiliently deformable extrusion body and telescopic pipe reach sealing purpose, the assurance telescopic pipe slides with respect to body and do not leak, and is not only simple in structure, and good sealing effect, the safety reliability height.
Description of drawings
With embodiment the present invention is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structural representation of stuffing box formula compensating joint of the present invention.
Among the figure:
1, body; 2, telescopic pipe; 3, gland; 4, stuffing box; 5, lining; 6, rubber seal; 7, graphite packing layer; 8, fixing bolt; 9, set screw nut.
Embodiment
Please refer to shown in Figure 1, Fig. 1 is the structural representation of stuffing box formula compensating joint of the present invention, in present embodiment, a kind of stuffing box formula compensating joint, it comprises body 1 and is sheathed on telescopic pipe 2 in the body 1, be provided with gland 3 between described telescopic pipe 2 cylindricals and the body 1, described gland 3, telescopic pipe 2 cylindricals and body 1 form stuffing box 4, two ends in the described stuffing box 4 are provided with lining 5, be arranged at intervals with rubber seal 6 and graphite packing layer 7 between the described lining 5, and be equipped with fixing bolt 8 between described gland 3 and the body 1, cooperate fixing bolt 8 to be provided with set screw nut 9.
Described stuffing box formula compensating joint is in the stuffing box 4 that is formed by body 1, gland 3 and telescopic pipe 2 cylindricals, be arranged at intervals with rubber seal 6 and graphite packing layer 7 in the described stuffing box 4, make gland 3 compress seal ring by tightening fixing bolt 8 and set screw nut 9, thereby make seal ring generation resiliently deformable extrusion body 1 and telescopic pipe 2 reach sealing purpose, assurance telescopic pipe 2 slides with respect to body 1 and does not leak; Graphite packing layer 7 has lubricated and resistant to elevated temperatures characteristics; If telescopic pipe 2 only need be tightened set screw nut 9 and just can seal once more owing to form leakage behind the frequent skimming wear seal ring.
Claims (4)
1. stuffing box formula compensating joint, it comprises body and is sheathed on intrinsic telescopic pipe, it is characterized in that: be provided with gland between described telescopic pipe cylindrical and the body, described gland, telescopic pipe cylindrical and body form stuffing box, be provided with seal arrangement in the described stuffing box, and described gland is connected with body by fastening piece.
2. stuffing box formula compensating joint according to claim 1 is characterized in that: the two ends in the described stuffing box are provided with lining.
3. stuffing box formula compensating joint according to claim 2, it is characterized in that: described seal arrangement is arranged between the lining, and it is rubber seal and the graphite packing layer that is provided with at interval.
4. according to claim 1,2 or 3 each described stuffing box formula compensating joints, it is characterized in that: described fastening piece comprises the fixing bolt that is arranged between body and the gland, cooperates fixing bolt to be provided with set screw nut.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105110847A CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
| CN2011202050774U CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105110847A CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101975317A true CN101975317A (en) | 2011-02-16 |
Family
ID=43575220
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105110847A Pending CN101975317A (en) | 2010-10-19 | 2010-10-19 | Stuffing box type compensating joint |
| CN2011202050774U Expired - Fee Related CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202050774U Expired - Fee Related CN202100857U (en) | 2010-10-19 | 2011-06-17 | Stuffing box type compensating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101975317A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013177742A1 (en) * | 2012-05-28 | 2013-12-05 | Gao Hongbing | Marine expansion joint with stuffing box |
| CN103759010A (en) * | 2014-01-21 | 2014-04-30 | 中国成达工程有限公司 | Packing shaft seal structure for high-pressure reciprocation pump |
| 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 |
| CN105443760A (en) * | 2014-09-30 | 2016-03-30 | 日本皮拉工业株式会社 | Gland seal |
| CN108772026A (en) * | 2018-06-24 | 2018-11-09 | 唐山三友硅业有限责任公司 | The gas distributor of tower reactor is catalyzed for gas-solid body |
| WO2020188500A1 (en) * | 2019-03-19 | 2020-09-24 | Saipem S.P.A. | Pipeline telescopic joint |
| CN112901774A (en) * | 2021-01-13 | 2021-06-04 | 西安近代化学研究所 | Laminated radial annular sealing device capable of compensating coaxial cylindrical surface gap |
| RU2811245C2 (en) * | 2019-03-19 | 2024-01-11 | САИПЕМ С.п.А. | Telescopic pipeline connection |
-
2010
- 2010-10-19 CN CN2010105110847A patent/CN101975317A/en active Pending
-
2011
- 2011-06-17 CN CN2011202050774U patent/CN202100857U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013177742A1 (en) * | 2012-05-28 | 2013-12-05 | Gao Hongbing | Marine expansion joint with stuffing box |
| CN103759010A (en) * | 2014-01-21 | 2014-04-30 | 中国成达工程有限公司 | Packing shaft seal structure for high-pressure reciprocation pump |
| CN103759010B (en) * | 2014-01-21 | 2015-12-09 | 中国成达工程有限公司 | For the packing shaft seal structure of high pressure reciprocating pump |
| CN105443760A (en) * | 2014-09-30 | 2016-03-30 | 日本皮拉工业株式会社 | Gland seal |
| 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 |
| CN108772026A (en) * | 2018-06-24 | 2018-11-09 | 唐山三友硅业有限责任公司 | The gas distributor of tower reactor is catalyzed for gas-solid body |
| CN108772026B (en) * | 2018-06-24 | 2024-04-26 | 唐山三友硅业股份有限公司 | Gas distributor for gas-solid catalytic tower reactor |
| WO2020188500A1 (en) * | 2019-03-19 | 2020-09-24 | Saipem S.P.A. | Pipeline telescopic joint |
| US11746940B2 (en) | 2019-03-19 | 2023-09-05 | Saipem S.P.A. | Pipeline telescopic joint |
| RU2811245C2 (en) * | 2019-03-19 | 2024-01-11 | САИПЕМ С.п.А. | Telescopic pipeline connection |
| CN112901774A (en) * | 2021-01-13 | 2021-06-04 | 西安近代化学研究所 | Laminated radial annular sealing device capable of compensating coaxial cylindrical surface gap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202100857U (en) | 2012-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110216 |