CN213016220U - Marine drilling riser pipe flexible short circuit device - Google Patents
Marine drilling riser pipe flexible short circuit device Download PDFInfo
- Publication number
- CN213016220U CN213016220U CN202021312178.7U CN202021312178U CN213016220U CN 213016220 U CN213016220 U CN 213016220U CN 202021312178 U CN202021312178 U CN 202021312178U CN 213016220 U CN213016220 U CN 213016220U
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- Prior art keywords
- pipe
- staple bolt
- wall
- circuit device
- movable block
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- 238000005553 drilling Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a telescopic short-circuit device of marine drilling riser, which comprises an outer pipe, wherein slide rails are symmetrically arranged at the top and the bottom of the inner wall of the outer pipe, the top and the bottom of the slide rails are provided with limit blocks, a slide block is slidably arranged in the slide rails, an inner pipe is fixed between the inner sides of the slide blocks, the riser is arranged at the end of the inner pipe, which is far away from the horizontal line of the outer pipe, a locking mechanism is arranged on the outer wall of the outer pipe, a shell is arranged at the end of the outer wall of the outer pipe, which is far away from the locking mechanism, and a movable block is arranged in the inner cavity of the outer pipe, when the inner pipe is stretched to a required position, a pull rod is loosened, a reset spring is rebounded and reset at the moment, so as to drive the movable block to move, the movable block moves to drive, the safety of the marine riser after the telescopic short circuit is improved.
Description
Technical Field
The utility model relates to an ocean drilling riser technical field specifically is a flexible short circuit device of ocean drilling riser pipe.
Background
In the process of marine oil exploration and development, drilling operation is usually required to be carried out, a drilling riser is an indispensable part in the whole marine drilling equipment, and the depth is different during marine drilling, so the riser is required to be subjected to telescopic short circuit, but the existing process still has certain problems, and the specific problems are as follows:
the flexible short circuit device in tradition can't be fixed the device after accomplishing the flexible short circuit of marine riser for gliding problem has appeared easily to the device, has reduced the security performance, and the condition that splits appears easily at the in-process that uses in addition traditional device, thereby has reduced the life of device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible short circuit device of marine drilling riser to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a telescopic short-circuit device of a marine drilling riser comprises an outer pipe, wherein slide rails are symmetrically arranged at the top and the bottom of the inner wall of the outer pipe, the top and the bottom of the slide rail are provided with limit blocks, the slide block is arranged in the slide rail in a sliding way, an inner pipe is fixed between the inner sides of the sliding blocks, a water-stop pipe is installed at one end of the inner pipe far away from the horizontal line of the outer pipe, the outer wall of the outer pipe is provided with a locking mechanism, one end of the outer wall of the outer pipe, which is far away from the locking mechanism, is provided with a shell, a movable block is arranged in the inner cavity of the shell, one end of the movable block, which is far away from the outer tube, is connected with a return spring, one end of the return spring is connected with the inner wall of the movable block, a connecting rod is arranged between the return springs, and the one end that the outer tube was kept away from to the connecting rod stretches out the movable block and installs the pull rod, the one end that the connecting rod was kept away from to the movable block is fixed with the gag lever post, the lateral wall is seted up the spacing groove that matches each other with the gag lever post about the inner tube.
Preferably, internal threads are uniformly arranged on the inner walls of the top and the bottom of the inner pipe, and external threads matched with the internal threads are arranged on the outer wall of the marine riser.
Based on the technical characteristics, the marine riser can be fixedly connected with the inner pipe, the installation is convenient, and the practicability of the device is improved.
Preferably, locking mechanism includes first staple bolt, locking bolt and second staple bolt, locking mechanism's first staple bolt is located the bottom of outer tube outer wall, the second staple bolt is installed at the top of outer tube outer wall, the top symmetry spiro union at both ends has the locking bolt about first staple bolt and the second staple bolt, and the bottom of locking bolt runs through the below that first staple bolt and second staple bolt extend to the second staple bolt.
Based on the technical characteristics, the locking mechanism can be fixed on the outer walls of the outer pipes with different specifications, the possibility of outer pipe cracking can be reduced to a certain degree, and the service life of the device is prolonged.
Preferably, the first staple bolt and the one end that the second staple bolt is close to the outer tube are equidistantly connected with buffer spring, buffer spring keeps away from the one end of first staple bolt and second staple bolt and installs the blotter.
Based on above-mentioned technical characteristics, the blotter is direct and the outer tube contact, avoids first staple bolt and second staple bolt scratch outer tube's surface, and buffer spring's extrusion force makes locking mechanism can fix on the outer tube more firmly.
Preferably, the top and the bottom of the movable block are symmetrically provided with movable blocks, the inner wall of the shell is provided with a sliding groove, and the movable blocks are connected with the sliding groove in a sliding manner.
Based on the technical characteristics, the moving block is smoother and more stable in the moving process.
Preferably, the vertical center lines of the inner pipe and the outer pipe are located at the same position, and the top and the bottom of the inner wall of the outer pipe are provided with sealing rings.
Based on the technical characteristics, the medium is effectively prevented from flowing between the outer pipe and the inner pipe, the outer pipe and the inner pipe are prevented from being corroded, and the service life of the device is shortened.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) under the matching of the sliding rail and the sliding block, the inner pipe stretches in the inner cavity of the outer pipe, when the inner pipe stretches to a required position, the pull rod is loosened, the reset spring rebounds and resets at the moment, so that the movable block is driven to move, the movable block moves to drive the limiting rod to move and be clamped into the inner cavity of the limiting groove, so that the inner pipe and the outer pipe can be fixed, the sliding problem is avoided, and the safety of the marine riser after being stretched and short-circuited is improved;
(2) align first staple bolt and second staple bolt, utilize locking bolt to lock first staple bolt and second staple bolt, make locking mechanism can lock the outer tube of different specifications, simultaneously when locking bolt, blotter and outer tube direct contact can protect the surface of outer tube, buffer spring receives the shrink after the extrusion, thereby fasten more when making locking mechanism and outer union coupling, reduce the possibility that the outer tube appears splitting, thereby the life of outer tube has been improved.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 4 is a schematic top view of the locking mechanism of the present invention.
In the figure: 1. an inner tube; 2. a slide rail; 3. a locking mechanism; 301. a first hoop; 302. locking the bolt; 303. a second hoop; 4. a slider; 5. a limiting block; 6. an outer tube; 7. a limiting groove; 8. a seal ring; 9. a riser; 10. a housing; 11. a pull rod; 12. a limiting rod; 13. a moving block; 14. a chute; 15. A movable block; 16. a connecting rod; 17. a return spring; 18. a buffer spring; 19. a cushion pad.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: a telescopic short circuit device of a marine drilling riser comprises an outer pipe 6, slide rails 2 are symmetrically arranged at the top and the bottom of the inner wall of the outer pipe 6, limit blocks 5 are arranged at the top and the bottom of the slide rails 2, a slide block 4 is slidably arranged in the slide rails 2, an inner pipe 1 is fixed between the inner sides of the slide blocks 4, the vertical centerlines of the inner pipe 1 and the outer pipe 6 are located at the same position, seal rings 8 are arranged at the top and the bottom of the inner wall of the outer pipe 6, a riser 9 is arranged at one end, away from the horizontal line of the outer pipe 6, of the inner pipe 1, inner threads are uniformly arranged on the inner walls of the top and the bottom of the inner pipe 1, external threads matched with the internal threads are arranged on the outer wall of the riser 9, a locking mechanism 3 is arranged on the outer wall of the outer pipe 6, the locking mechanism 3 comprises a first hoop 301, a, the top of the outer wall of the outer tube 6 is provided with a second hoop 303, the tops of the left and right ends of the first hoop 301 and the second hoop 303 are symmetrically screwed with locking bolts 302, the bottom of the locking bolts 302 penetrates through the first hoop 301 and the second hoop 303 and extends to the lower part of the second hoop 303, one ends of the first hoop 301 and the second hoop 303 close to the outer tube 6 are equidistantly connected with buffer springs 18, one ends of the buffer springs 18 far away from the first hoop 301 and the second hoop 303 are provided with buffer pads 19, one end of the outer wall of the outer tube 6 far away from the locking mechanism 3 is provided with a shell 10, an inner cavity of the shell 10 is provided with a movable block 15, the top and the bottom of the movable block 15 are symmetrically provided with movable blocks 13, the inner wall of the shell 10 is provided with a chute 14, the movable blocks 13 are connected with the chute 14 in a sliding manner, one end of the movable block 15 far away from the outer tube 6 is connected with a return spring 17, and one, install connecting rod 16 between reset spring 17, and connecting rod 16 keeps away from the one end of outer tube 6 and stretches out movable block 15 and install pull rod 11, and movable block 15 keeps away from the one end of connecting rod 16 and is fixed with gag lever post 12, and the lateral wall is seted up with the spacing groove 7 of gag lever post 12 mutual matching about inner tube 1.
The working principle is as follows: when the device is used, the inner wall of the inner pipe 1 is provided with the inner thread, the outer wall of the marine riser 9 is provided with the outer thread matched with the inner thread, so that the marine riser 9 is conveniently connected with the inner pipe 1, when the telescopic device needs to be extended and retracted, the pull rod 11 is pulled, the pull rod 11 drives the movable block 15 to move through the connecting rod 16, the reset spring 17 is compressed at the moment, the movable block 15 moves to drive the limiting rod 12 to be separated from the inner cavity of the limiting groove 7, then the sliding block 4 ascends or descends in the inner cavity of the sliding rail 2, so that the telescopic effect of the inner pipe 1 in the outer pipe 6 is achieved, when the device is extended to a required position, the pull rod 11 is loosened, the reset spring 17 rebounds to drive the movable block 13 to reset rapidly, the limiting rod 12 is clamped into the inner cavity of the limiting groove 7 again, the inner pipe 1 and the outer pipe 6 are, simultaneously through the outer wall installation locking mechanism 3 at outer tube 6, overlap first staple bolt 301 and second staple bolt 303 in the top and the bottom of outer tube 6 outer wall respectively, utilize locking bolt 302 to lock first staple bolt 301 and second staple bolt 303 both ends, thereby make locking mechanism 3 can fix on the outer tube 6 of different specifications, can reduce outer tube 6 possibility that splits, thereby the life of device has been prolonged, locking bolt 302 is when locking outer tube 6, 19 direct and the outer tube 6 contact of blotter, can protect the surface of outer tube 6, buffer spring 18 receives the extrusion shrink, it is more firm when making locking mechanism 3 be connected with outer tube 6 through the extrusion force.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a flexible short circuit device of marine drilling riser pipe, includes outer tube (6), its characterized in that: the sliding rail (2) is symmetrically arranged at the top and the bottom of the inner wall of the outer pipe (6), the top and the bottom of the sliding rail (2) are provided with limit blocks (5), a sliding block (4) is arranged inside the sliding rail (2), an inner pipe (1) is fixed between the inner sides of the sliding block (4), one end, far away from a horizontal line, of the outer pipe (6) of the inner pipe (1) is provided with a water-stop pipe (9), the outer wall of the outer pipe (6) is provided with a locking mechanism (3), one end, far away from the locking mechanism (3), of the outer wall of the outer pipe (6) is provided with a shell (10), an inner cavity of the shell (10) is provided with a movable block (15), one end, far away from the outer pipe (6), of the movable block (15) is connected with a reset spring (17), one end of the reset spring (17), and the one end that outer tube (6) were kept away from in connecting rod (16) stretches out movable block (15) and installs pull rod (11), the one end that connecting rod (16) were kept away from in movable block (15) is fixed with gag lever post (12), spacing groove (7) that match each other with gag lever post (12) are seted up to the lateral wall about inner tube (1).
2. The telescopic short-circuit device for marine drilling riser pipes according to claim 1, wherein: the inner walls of the top and the bottom of the inner pipe (1) are uniformly provided with internal threads, and the outer wall of the marine riser (9) is provided with external threads matched with the internal threads.
3. The telescopic short-circuit device for marine drilling riser pipes according to claim 1, wherein: locking mechanism (3) include first staple bolt (301), locking bolt (302) and second staple bolt (303), first staple bolt (301) of locking mechanism (3) are located the bottom of outer tube (6) outer wall, second staple bolt (303) is installed at the top of outer tube (6) outer wall, the top symmetry spiro union at both ends has locking bolt (302) about first staple bolt (301) and second staple bolt (303), and the bottom of locking bolt (302) runs through the below that first staple bolt (301) and second staple bolt (303) extend to second staple bolt (303).
4. The telescopic short-circuit device for marine drilling riser pipes according to claim 3, wherein: first staple bolt (301) and second staple bolt (303) are close to the one end of outer tube (6) equidistant connection have buffer spring (18), buffer spring (18) are kept away from the one end of first staple bolt (301) and second staple bolt (303) and are installed blotter (19).
5. The telescopic short-circuit device for marine drilling riser pipes according to claim 1, wherein: the top and the bottom of the movable block (15) are symmetrically provided with movable blocks (13), the inner wall of the shell (10) is provided with a sliding groove (14), and the movable blocks (13) are in sliding connection with the sliding groove (14).
6. The telescopic short-circuit device for marine drilling riser pipes according to claim 1, wherein: the vertical center lines of the inner pipe (1) and the outer pipe (6) are located at the same position, and the top and the bottom of the inner wall of the outer pipe (6) are provided with sealing rings (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021312178.7U CN213016220U (en) | 2020-07-07 | 2020-07-07 | Marine drilling riser pipe flexible short circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021312178.7U CN213016220U (en) | 2020-07-07 | 2020-07-07 | Marine drilling riser pipe flexible short circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213016220U true CN213016220U (en) | 2021-04-20 |
Family
ID=75500795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021312178.7U Expired - Fee Related CN213016220U (en) | 2020-07-07 | 2020-07-07 | Marine drilling riser pipe flexible short circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213016220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833209A (en) * | 2021-09-30 | 2021-12-24 | 中铁十六局集团第五工程有限公司 | Concrete engineering construction reinforcing bar interval controlling means |
-
2020
- 2020-07-07 CN CN202021312178.7U patent/CN213016220U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113833209A (en) * | 2021-09-30 | 2021-12-24 | 中铁十六局集团第五工程有限公司 | Concrete engineering construction reinforcing bar interval controlling means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210420 |