CN206129213U - Correct decentered seal cover of sleeve pipe - Google Patents
Correct decentered seal cover of sleeve pipe Download PDFInfo
- Publication number
- CN206129213U CN206129213U CN201621138265.9U CN201621138265U CN206129213U CN 206129213 U CN206129213 U CN 206129213U CN 201621138265 U CN201621138265 U CN 201621138265U CN 206129213 U CN206129213 U CN 206129213U
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- China
- Prior art keywords
- ring body
- sleeve pipe
- type
- inner ring
- seal
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Abstract
The utility model discloses a correct the decentered seal cover of on -the -spot sleeve pipe, this seal cover includes outer lane body (4) and inner circle body (5), ' the interior installation of FS' type seal groove (8)' FS' type sealing washer (1), installation one number in dovetail (11)' O' type circle (2), installation two numbers in seal groove (12)' O' type circle (6), inner circle body (5) are located on outer lane body (4) hole terminal surface and through gasket (3), screw (7) link together, the decentered seal cover of on -the -spot sleeve pipe is corrected to whole constitution. The utility model discloses simple structure, the installation is easy, and it is convenient to adjust, appears according to the actual skew condition of sleeve pipe, carrying out synchronous skew to the seal cover under certain degree skew, the condition not placed in the middle at the sleeve pipe to reach casing centralization's perfect condition, and play the auxiliary seal effect under slips hanger owner seal failure's the condition.
Description
Technical field
This utility model is related to sealing device, and in particular to a kind of sealing shroud of correction casing eccentricity.
Background technology
At present, known hanging device for slips casing sealing shroud may be only available for live sleeve pipe in it is placed in the middle, do not offset
Perfect condition, but practical situation is often that part tubular installation occurs several millimeters of different degrees of skew, or when initially installing
Casing centralization but rear sleeve of cementing the well occurs small skew, therefore in the case where skew occurs in sleeve pipe, conventional rubber is installed
Glue sealing shroud can bring following difficulty：1. the sleeve pipe for offseting understands the magnitude of interference of some sealing that cooperates with sealing shroud can be compared with
Increase before, this will cause in-site installation sealing shroud extremely difficult, it is difficult to be correctly installed to four-way junction of casing body interior, or even
The rubber seal that meeting breakseal puts, causes seal failure；2. another part of sleeve pipe（The opposite direction of offset direction）With
Gap between sealing shroud can increase, and sealed increscence amount reduces, or even occurs do not have magnitude of interference situation, causes seal failure.
The content of the invention
The purpose of this utility model is：A kind of sealing shroud for correcting casing eccentricity is provided, simple structure installs easy,
It is easy to adjust, casing head inner chamber slips hanger upper end is seated in, there is to a certain degree skew, situation not placed in the middle in sleeve pipe
Under, according to sleeve pipe actual shifts situation, skew is synchronized to sealing shroud, to reach sleeve pipe in perfect condition placed in the middle, and
Auxiliary seal effect is effectively played in the case where slips hanger primary seal fails.
This utility model solves the scheme of technical problem：The sealing shroud includes outer ring body and inner ring body, inner ring sheet
" FS " type seal groove is set on the endoporus wall of body, screw connecting hole is set on inner ring body, have pad to install on screw connecting hole
Step, the interior hole end surface of outer ring body sets dovetail groove, and in the outside wall surface of outer ring body seal groove is set, in " FS " type seal groove
To install installed in " FS " type sealing ring, dovetail groove and install in " O " type circle, seal groove No. two " O " type circles, inner ring body is sat
Fall on the interior hole end surface of outer ring body and by pad, mode connects for screw together, be monolithically fabricated and correct live casing eccentricity
Sealing shroud.
Wherein, lifting screwed hole is also set on inner ring body.
This utility model has advantages below：
1st, " FS " type sealing ring is arranged on " FS " type seal groove of inner ring body, and inner ring body can be followed to carry out partially
Move, realize coordinating with live sleeve pipe, seal.
2nd, " O " type circle is arranged in the dovetail groove of the interior hole end surface of outer ring body, the O-ring realize inner ring body with
Sealing of the outer ring body on end face, and excited by tightening screw.
3rd, pad is arranged on inner ring body and is used with screw fit, when inner ring body or so skew is adjusted, pad
Piece increased the real contact area with the aperture end face of inner ring body, it is ensured that the lock ability of stationarity and screw.
4th, outer ring body is located slips hanger upper end, and No. two " O " type circles are realized matching somebody with somebody with the upper end endoporus of casing head body
Close, seal, outer ring body position remains invariant state, and coupled screw position is also remained in an unchanged state.
5th, when skew, placed in the middle occurs in live sleeve pipe, no matter toward in the case of which side skew, the sealing shroud can be realized
Sleeve pipe offset direction is followed to be adjusted, to guarantee that sealing shroud can smoothly be installed in place, it is to avoid blocked portion phenomenon.
6th, the ingenious design for having introduced screw, pad of this utility model, compensate the screw that loses in larger migration process with
Contact area between inner ring body, can effectively realize the connection between inner ring body and outer ring body and positive sealing.
7th, the sealing shroud simple structure, installs easy to adjust, and with low cost, practicality is very strong, and at the scene sleeve pipe hangs
Device primary seal occur leakage in the case of, can with it is very convenient, be efficiently installed in place, not by live sleeve pipe side-play amount number
Realize the sealing of sleeve pipe.
8th, the Design Theory pressure voltage of the sealing shroud is 69MPa（10000psi）.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the inner ring body construction schematic diagram of Fig. 1.
Fig. 3 is the A-A of Fig. 2 to sectional view.
Fig. 4 is the sealing shroud schematic view of the mounting position of Fig. 1.
Fig. 5 is live sleeve pipe in placed in the middle, not shift state figure.
Fig. 6 is live sleeve pipe in placed in the middle, shift state figure to the right.
Fig. 7 is live sleeve pipe in placed in the middle, shift state figure to the left.
In figure：1 " FS " type sealing ring, No. 2 " O " type circles, 3 pads, 4 outer ring bodies, 5 inner ring bodies, 6 No. two " O " types
Circle, 7 screws, 8 " FS " type seal grooves, 9 screw connecting holes, 10 pad installation steps, 11 dovetail grooves, 12 seal grooves, 13
Hang screwed hole, 14 sleeve pipes, 15 slips hangers, 16 casing head bodies.
Specific embodiment
Below Structure Figure further illustrates technical solution of the present utility model, but is not to be construed as to technical side
The restriction of case.
As Figure 1-3, the sealing shroud includes outer ring body 4 and inner ring body 5, sets on the endoporus wall of inner ring body 5 "
FS " types seal groove 8, sets screw connecting hole 9 on inner ring body 5, there is pad installation step 10, outer ring sheet on screw connecting hole 9
The interior hole end surface of body 4 sets dovetail groove 11, and seal groove 12 is set in the outside wall surface of outer ring body 4, peace in " FS " type seal groove 8
Dress " FS " type sealing ring 1, installs in " O " type circle 2, seal groove 12 in dovetail groove 11 and installs No. two " O " type circles 6, inner ring
Body 5 is seated on the interior hole end surface of outer ring body 4 and is linked together by pad 3, screw 7, is monolithically fabricated correction scene
The sealing shroud of casing eccentricity.
Wherein, lifting screwed hole 13 is also set on inner ring body 5.
When the sealing shroud is installed at the scene, its position such as Fig. 4 with sleeve pipe 14, slips hanger 15 and casing head body 16
Shown, outer ring body 4 is seated in the upper end of slips hanger 15, and No. two " O " type circles 6 will be realized with the upper end endoporus of casing head body 16
Coordinate, seal, " FS " the type sealing ring 1 in inner ring body 5 coordinates, seals with sleeve pipe 14.
Cooperation between the sealing shroud and sleeve pipe occurs following three kinds of states：
1. when live sleeve pipe is in placed in the middle, not shift state, the inner ring of sealing shroud and outer ring are in concentric, such as scheme
Shown in 5, size A is with size B apart from equal.
2. when live sleeve pipe is in placed in the middle, shift state to the right, now inner ring and outer ring are in decentraction state, such as
Shown in Fig. 6, sleeve pipe offset distance C to the right, then size A1=A-C, B1=B+C, when sealing shroud is installed inner ring be also required to it is corresponding to
Right overall offset, the simultaneous bias of inner ring are compensated using the preset clearance between inner ring and outer ring, need to consider scene herein
Sleeve pipe real offset simultaneously designs accordingly the limit offset amount of sealing shroud.
3. when live sleeve pipe is in placed in the middle, shift state to the left, now inner ring and outer ring body are in different heart shaped
State, as shown in fig. 7, sleeve pipe offset distance C to the left, then size A2=A+C, B2=B-C, when installing sealing shroud, inner ring is also required to phase
The overall offset to the left answered, needs to consider live sleeve pipe real offset and designs accordingly the limit of eccentric sealed set herein
Side-play amount.
Claims (2)
1. the sealing shroud of live casing eccentricity is corrected, be it is characterized in that：The sealing shroud includes outer ring body（4）With inner ring body（5）,
Inner ring body（5）Endoporus wall on set " FS " type seal groove（8）, inner ring body（5）On set screw connecting hole（9）, screw
Connecting hole（9）On have pad installation step（10）, outer ring body（4）Interior hole end surface set dovetail groove（11）, outer ring body（4）'s
Seal groove is set in outside wall surface（12）, " FS " type seal groove（8）Interior installation " FS " type sealing ring（1）, dovetail groove（11）Interior peace
Fill " O " type circle（2）, seal groove（12）No. two " O " type circles of interior installation（6）, inner ring body（5）It is seated in outer ring body
（4）Interior hole end surface on and pass through pad（3）, screw（7）Link together, be monolithically fabricated the sealing for correcting live casing eccentricity
Set.
2. the sealing shroud for correcting live casing eccentricity according to claim 1, is characterized in that：Inner ring body（5）On also set
Lifting screwed hole（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138265.9U CN206129213U (en) | 2016-10-20 | 2016-10-20 | Correct decentered seal cover of sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621138265.9U CN206129213U (en) | 2016-10-20 | 2016-10-20 | Correct decentered seal cover of sleeve pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206129213U true CN206129213U (en) | 2017-04-26 |
Family
ID=58574602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621138265.9U Active CN206129213U (en) | 2016-10-20 | 2016-10-20 | Correct decentered seal cover of sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206129213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321008A (en) * | 2016-10-20 | 2017-01-11 | 江苏金石机械集团有限公司 | Seal cartridge for correcting casing eccentricity |
-
2016
- 2016-10-20 CN CN201621138265.9U patent/CN206129213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321008A (en) * | 2016-10-20 | 2017-01-11 | 江苏金石机械集团有限公司 | Seal cartridge for correcting casing eccentricity |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |