CN106885077A - A kind of assembling pipe joint of use flexible graphite sealing ring static sealing - Google Patents
A kind of assembling pipe joint of use flexible graphite sealing ring static sealing Download PDFInfo
- Publication number
- CN106885077A CN106885077A CN201510933633.2A CN201510933633A CN106885077A CN 106885077 A CN106885077 A CN 106885077A CN 201510933633 A CN201510933633 A CN 201510933633A CN 106885077 A CN106885077 A CN 106885077A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing ring
- flexible graphite
- pipe joint
- assembling pipe
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of assembling pipe joint of use flexible graphite sealing ring sealing, including annular seal space, flexible graphite sealing ring, retaining ring and flexible graphite sealing ring hold-down gear；It is successively flexible graphite sealing ring, retaining ring and flexible graphite sealing ring hold-down gear in the annular seal space；Described flexible graphite sealing ring hold-down gear one end is provided with extruding circular cone, and extruding circular cone is inserted into annular seal space, and extruding circular cone offsets with the male cone (strobilus masculinus) of retaining ring；The locking ring inner surface is provided with snap ring or ring gear, and the nearly sealing ring side in outer surface is male cone (strobilus masculinus), and its edge-on end face of nearly sealing ring one offsets with sealing ring；The side of the flexible graphite sealing ring is connected with retaining ring, and opposite side offsets with the sealing surface of annular seal space.The application using flexible graphite sealing ring sealing function, there is provided a kind of non-oxidation, long service life, good seal performance, the attachment means that are connected firmly, substantially increase the service life of pipe-line system connection and use scope.
Description
Technical field
The present invention relates to a kind of fluid circuit induction system, and in particular to a kind of sealing ring is soft graphite material
Cavate assembling pipe joint.
Background technology
In large-scale gas or liquid pipeline system, pipe line joint device seal durability is all there is
Problem.
Folder seal washer is sealed with flange in fluid piping system, using just occurring after a period of time
Oxidation, it is aging the problems such as, cause system leakage and a series of other chain quality problems, and maintenance needs
Time, cost it is all very high.
For the installation of pipeline, generally using flange form connection, it is necessary to carry out Site Welding, Ran Houjin
Row leak-testing, if weld seam has the weld defects such as slag inclusion, needs are done over again, and the technical ability to in-site installation workman has
High requirement, and have because scene forbids getting angry, it is impossible to carry out the possibility of REPAIR WELDING.There is installation effectiveness low
Under, it is not easy to remove the problems such as；Flange connection is widely used in the fields such as oil, chemical industry, metallurgy, existing
In technology, flange connection also have it is a kind of be in the form of pad, be exactly two pipelines, pipe fitting or equipment,
First it is individually fixed on a ring flange, flange gasket is then added between two ring flanges, finally uses bolt
Two ring flanges are tensed a kind of dismountable joint for making sealing ring axially compressed to be combined closely with it,
But this flange connection is easily leaked in Practical Project, and it is all by pad oxidation or old to let out 0 leakage mostly
Change what failure caused, once leakage, demounting bolt, lifting appliance change pad pressure experiment etc. again can be delayed
Certain production duration.Therefore convenient maintenance, later stage flange seal needs a kind of initial stage to put into operation all the time when
Operation can complete a kind of design structure safeguarded in a short time when going wrong.
Because the common applying working condition of flexible graphite sealing ring is HTHP, in an oxidizing environment, more than 450 DEG C
High temperature can just make its start oxidation；Under usual hyperbaric environment, pressure oscillation will not also cause flexibility substantially
Graphite is along the large stretch of extrusion in the gap of pressure boundary；Therefore, flexible graphite sealing ring is used for the low of static sealing
It is reliably close long-term safety to be capable of achieving in warm (less than 200 DEG C) low pressure (below 1.6MPa) fluid piping system
Envelope.
The content of the invention
The problems such as in order to solve the life-span of pipeline connection presence, sealing and installation effectiveness in the prior art,
A kind of use soft graphite this application provides good sealing effect, long service life and firm stable performance is close
The cavate pipeline connecting device of seal static sealing.Concrete technical scheme is as follows.
The application provides a kind of static assembling pipe joint of use flexible graphite sealing ring sealing, the device bag
Include annular seal space (1), flexible graphite sealing ring (2), retaining ring (3) and flexible graphite sealing ring and compress dress
Put (4)；It is successively flexible graphite sealing ring (2), retaining ring (3) and flexibility in the annular seal space (1)
Carbon seal ring hold-down gear (4)；Described flexible graphite sealing ring hold-down gear (4) one end is provided with extruding
Circular cone (41), extruding circular cone (41) is inserted into annular seal space (1), extruding circular cone (41)
The male cone (strobilus masculinus) (32) being provided with retaining ring (3) outer surface (31) offsets；The interior table of the retaining ring (3)
Face (33) is provided with snap ring or ring gear (34), and outer surface (31) nearly sealing ring (2) side is male cone (strobilus masculinus) (32),
Its edge-on end face (35) of nearly sealing ring one offsets with sealing ring (2)；The flexible graphite sealing ring (2)
Side be connected with retaining ring (3), opposite side offsets with the sealing surface (11) of annular seal space (1).
Preferably, male cone (strobilus masculinus) (32) length of retaining ring described herein is not less than flexible graphite sealing
The length of the extruding circular cone (41) of circle hold-down gear (4), the retaining ring male cone (strobilus masculinus) (32)
Bottom radius of the bottom radius not less than extruding circular cone (41) inner conical surface of flexible graphite sealing ring hold-down gear；
Preferably, described device also include sealing ring baffle ring (6), the side of sealing ring baffle ring (6) with it is close
Seal (2) offsets, and opposite side connects with retaining ring (3).The sealing ring baffle ring (6) for one or
It is multiple.
Preferably, the ring gear (34) of the locking ring inner surface is a plurality of pointed tooth screw thread.
Preferably, the joint of the pipeline (7) is provided with indent (71), accordingly, table in retaining ring
Face is snap ring (34), and the snap ring (34) is projection shape；Or the joint of the pipeline (7) is provided with
Boss (71), accordingly, retaining ring lower surface snap ring (34) is groove shapes.
Preferably, the assembling pipe joint is single head or double end assembling pipe joint.When the pipeline connects
When tipping is set to double end, it is preferable that described device also includes stripping ring (5), the stripping ring (5) is put
In the centre of annular seal space (1), two ends connect with the pipeline of both sides respectively, facilitate pipeline dismounting and change zero
Part.
Preferably, the stripping ring (5) is made up of elastomeric material.
Beneficial effect：
The application is used for static seal systems by by flexible graphite sealing ring, and uses it for pipe-line system
In connection, there is provided a kind of simple structure, easy for installation, good seal performance, long service life, use bar
Part scope is wide and the pipeline connecting device that is connected firmly, substantially increases the service life of pipe-line system connection
And use scope.
Brief description of the drawings
The static assembling pipe joint structural representation that Fig. 1 is sealed using flexible graphite sealing ring；
The static assembling pipe joint structural representation that Fig. 2 is sealed using flexible graphite sealing ring；
In figure：1- annular seal spaces, 2- flexible graphite sealing rings, 3- retaining rings, 4- flexible graphite sealing rings compress dress
Put, 11- sealing surfaces, 31- locking ring outer surfaces, 32- retaining ring male cone (strobilus masculinus)s, 33- locking ring inner surfaces, 34-
Snap ring or latch, 35- retaining rings found end face, the extruding circular cone of 41- flexible graphite sealing ring hold-down gears,
5- stripping rings, 6- sealing ring baffle rings, 7- pipelines, 71- indents.
Specific embodiment
The application is further explained below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of static pipe of the use flexible graphite sealing ring sealing for being provided for the application
Road attachment means, the device includes annular seal space 1, flexible graphite sealing ring 2, retaining ring 3 and soft graphite
Sealing ring hold-down gear 4；It is successively flexible graphite sealing ring 2, retaining ring 3 and soft in the annular seal space 1
Property carbon seal ring hold-down gear 4；Described one end of flexible graphite sealing ring hold-down gear 4 is provided with extruding annular
The conical surface 41, extruding circular cone 41 is inserted into annular seal space 1, extrudes circular cone 41 and retaining ring 3
The male cone (strobilus masculinus) 32 that outer surface 31 is provided with offsets；The inner surface 33 of the retaining ring 3 is provided with snap ring or ring gear 34,
The nearly side of sealing ring 2 in outer surface 31 is male cone (strobilus masculinus) 32, the edge-on end face 35 of its nearly sealing ring one and sealing ring 2
Offset；The side of the flexible graphite sealing ring 2 is connected with retaining ring 3, and opposite side is close with annular seal space 1
Front cover 11 offsets.Preferably, the length of male cone (strobilus masculinus) 32 of retaining ring described herein is not less than soft graphite
The length of the extruding circular cone 41 of sealing ring hold-down gear 4, the bottom radius of the retaining ring male cone (strobilus masculinus) 32
Not less than the bottom radius of the extruding inner conical surface of circular cone 41 of flexible graphite sealing ring hold-down gear.
Preferably, described device also includes sealing ring baffle ring 6, side and the sealing ring 2 of sealing ring baffle ring 6
Offset, opposite side connects with retaining ring 3.The sealing ring baffle ring 6 can be one or more.
When herein described pipeline is pipe with small pipe diameter, it is preferable that the locking ring inner surface 33 is the shape of ring gear 34
Shape, as a plurality of pointed tooth screw thread form, the attachment means of the application pass through pointed tooth screw thread clamping pipeline 7；When
When herein described pipeline is Large Diameter Pipeline, above-mentioned pointed tooth screw thread is difficult and the clamping of pipeline 7, at this moment, the application
Described in the joint of pipeline be provided with indent 71, corresponding with indent 71, locking ring inner surface 33 is snap ring
34, the snap ring 34 is projection shape；Or the joint of the pipeline 7 is provided with boss 71, accordingly,
Locking ring inner surface snap ring 34 is groove shapes.
The assembling pipe joint can be single head or double end assembling pipe joint.Filled when the pipeline is connected
When being set to double end, it is preferable that described device also includes stripping ring 5, the stripping ring 5 is placed in annular seal space 1
Centre, two ends connect with the pipeline 7 of both sides respectively, facilitate pipeline dismounting and change parts, it is preferable that
The stripping ring 5 is made up of elastomeric material.
Specifically operation principle is：By taking double end pipe as an example, in actual application, first in two pipes
It is inserted in flexible graphite sealing ring hold-down gear 4, retaining ring 3, sealing ring 2 at the pipe joint in road 7 successively respectively,
Then the two ends of annular seal space 1 are inserted respectively in the hold-down gear 4 of both sides, tighten two hold-down gears 4,
Hold-down gear 4 extrudes circular cone 41 and then extrudes retaining ring 3, extruding of the retaining ring 3 in hold-down gear
Under the pushing of circular cone 41, after first retaining ring 3 is arrived on top axially movable, the extruding annular of hold-down gear
The conical surface 41 continues to push, and its conical surface extrudes the male cone (strobilus masculinus) 32 of retaining ring 3, it is radially run, and then
The occlusion pipeline of ring gear 34 or snap ring 34 of retaining ring 3 agree with indent or boss 71.Hold-down gear
Extruding circular cone 41 continues to push retaining ring 3, the conical surface meeting on the extruding circular cone 41 of hold-down gear
Retaining ring 3 is crossed, its rearward plane portion extrusion retaining ring 3 reaches the radial direction maximum amount of feed of retaining ring 3.
The extruding circular cone platform of hold-down gear moves on, and its facade part holds out against with retaining ring facade 35, band
Dynamic retaining ring 3 is advanced axially relative with pipeline, crush seal circle 2, compresses sealing ring 2, and sealing ring 2 is being squeezed
Pressure deforms radially upward and downwards, will be fully sealed between pipeline 7 and annular seal space 1.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention not office
Be limited to this, any one skilled in the art in the technical scope of present disclosure, according to this
The technical scheme of invention and its inventive concept are subject to equivalent or change, should all cover in protection of the invention
Within the scope of.
Claims (9)
1. the static assembling pipe joint that a kind of use flexible graphite sealing ring is sealed, characterized in that, the device includes annular seal space (1), flexible graphite sealing ring (2), retaining ring (3) and flexible graphite sealing ring hold-down gear (4)；It is successively flexible graphite sealing ring (2), retaining ring (3) and flexible graphite sealing ring hold-down gear (4) in the annular seal space (1)；Described flexible graphite sealing ring hold-down gear (4) one end is provided with extruding circular cone (41), extruding circular cone (41) is inserted into annular seal space (1), and the male cone (strobilus masculinus) (32) that extruding circular cone (41) is provided with retaining ring (3) outer surface (31) offsets；The retaining ring (3) inner surface (33) is provided with snap ring or ring gear (34), nearly sealing ring (2) side in outer surface (31) is male cone (strobilus masculinus) (32), and its edge-on end face (35) of nearly sealing ring one offsets with sealing ring (2)；The side of the flexible graphite sealing ring (2) is connected with retaining ring (3), and opposite side offsets with the sealing surface (11) of annular seal space (1).
2. the static assembling pipe joint that a kind of use carbon seal ring according to claim 1 is sealed, it is characterized in that, male cone (strobilus masculinus) (32) length of the retaining ring is not less than the length of the extruding circular cone (41) of flexible graphite sealing ring hold-down gear (4), the bottom radius of the bottom radius not less than extruding circular cone (41) inner conical surface of flexible graphite sealing ring hold-down gear of the retaining ring male cone (strobilus masculinus) (32).
3. the static assembling pipe joint of a kind of use carbon seal ring according to claim 1, it is characterized in that, described device also includes sealing ring baffle ring (6), the side of sealing ring baffle ring (6) offsets with sealing ring (2), and opposite side connects with retaining ring (3).
4. the static assembling pipe joint of a kind of use carbon seal ring according to claim 1, it is characterised in that the sealing ring baffle ring (6) is one or more.
5. the static assembling pipe joint of a kind of use carbon seal ring according to claim 1, it is characterised in that the ring gear (34) of the locking ring inner surface is a plurality of pointed tooth screw thread.
6. the static assembling pipe joint of a kind of use carbon seal ring according to claim 1, it is characterized in that, the joint of the pipeline (7) is provided with indent (71), accordingly, locking ring inner surface is snap ring (34), and the snap ring (34) is projection shape；Or the joint of the pipeline (7) is provided with boss (71), accordingly, locking ring inner surface snap ring (34) is groove shapes.
7. a kind of static assembling pipe joint of use carbon seal ring according to claim 1, the assembling pipe joint is single head or double end assembling pipe joint.
8. the static assembling pipe joint of a kind of use carbon seal ring according to claim 7, it is characterized in that, the assembling pipe joint is double end assembling pipe joint, described device also includes stripping ring (5), the stripping ring (5) is placed in the centre of sealing support body (1), and two ends connect with the pipeline of both sides respectively.
9. the static assembling pipe joint of a kind of use carbon seal ring according to claim 8, it is characterised in that the stripping ring (5) is made up of elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933633.2A CN106885077A (en) | 2015-12-15 | 2015-12-15 | A kind of assembling pipe joint of use flexible graphite sealing ring static sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933633.2A CN106885077A (en) | 2015-12-15 | 2015-12-15 | A kind of assembling pipe joint of use flexible graphite sealing ring static sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106885077A true CN106885077A (en) | 2017-06-23 |
Family
ID=59174825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510933633.2A Pending CN106885077A (en) | 2015-12-15 | 2015-12-15 | A kind of assembling pipe joint of use flexible graphite sealing ring static sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106885077A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
| CN112879642A (en) * | 2021-01-13 | 2021-06-01 | 李亮 | Valve component structure capable of being used in seamless butt joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648632A (en) * | 1982-08-25 | 1987-03-10 | Bas-Tex Corporation | High pressure flow line connection |
| US4832379A (en) * | 1987-01-28 | 1989-05-23 | The Pipe Line Development Company | Collet grip riser fitting |
| CN200946729Y (en) * | 2006-09-08 | 2007-09-12 | 广东强人管业有限公司 | Flange type pipeline connector |
| CN101105252A (en) * | 2006-07-12 | 2008-01-16 | 黄建聪 | Pipe joint |
| CN203847861U (en) * | 2014-03-14 | 2014-09-24 | 张国然 | Flange assembly |
| CN204628863U (en) * | 2015-03-18 | 2015-09-09 | 董布和 | A kind of conduit pipe loop flange connector |
-
2015
- 2015-12-15 CN CN201510933633.2A patent/CN106885077A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4648632A (en) * | 1982-08-25 | 1987-03-10 | Bas-Tex Corporation | High pressure flow line connection |
| US4832379A (en) * | 1987-01-28 | 1989-05-23 | The Pipe Line Development Company | Collet grip riser fitting |
| CN101105252A (en) * | 2006-07-12 | 2008-01-16 | 黄建聪 | Pipe joint |
| CN200946729Y (en) * | 2006-09-08 | 2007-09-12 | 广东强人管业有限公司 | Flange type pipeline connector |
| CN203847861U (en) * | 2014-03-14 | 2014-09-24 | 张国然 | Flange assembly |
| CN204628863U (en) * | 2015-03-18 | 2015-09-09 | 董布和 | A kind of conduit pipe loop flange connector |
Non-Patent Citations (1)
| Title |
|---|
| 成大先: "《机械设计图册》", 31 March 2000, 化学工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
| CN112879642A (en) * | 2021-01-13 | 2021-06-01 | 李亮 | Valve component structure capable of being used in seamless butt joint |
| CN112879642B (en) * | 2021-01-13 | 2023-05-09 | 马鞍山市恒久特材有限公司 | Valve assembly structure capable of being used in seamless butt joint |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170623 |