CN205208029U - Expanding plugging device in submarine pipeline is flexible - Google Patents
Expanding plugging device in submarine pipeline is flexible Download PDFInfo
- Publication number
- CN205208029U CN205208029U CN201520828172.8U CN201520828172U CN205208029U CN 205208029 U CN205208029 U CN 205208029U CN 201520828172 U CN201520828172 U CN 201520828172U CN 205208029 U CN205208029 U CN 205208029U
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- CN
- China
- Prior art keywords
- fixed
- pedestal
- fixed dam
- voussoir
- cone structure
- 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.)
- Withdrawn - After Issue
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Abstract
An object of the utility model is to provide an expanding plugging device in submarine pipeline is flexible, all install the radial clamping pneumatic cylinder on left side base and the right base, the inboard at right side base fixed stop is fixed to the one end of axial pneumatic cylinder mechanism, the other end of axial pneumatic cylinder mechanism is installed in connecting, connect and pass fixed stop A and fixed mutually with protruding type piece, protruding type piece is fixed mutually with fixed stop C, the fixed stop C left side sets up the voussoir, voussoir external fixation kickboard, the inside cone structure that sets up of voussoir, the inside hydraulic piston pole that sets up of cone structure, the hydraulic piston pole links to each other with the center pin, the center pin sets up the bulge of circumference, push up respectively on fixed stop B and clamp plate at bulge's both ends, fixed stop B is adjacent with the cone structure with the kickboard, set up the trapezoidal sealing washer of realizing sealed effect between clamp plate and the base baffle. The utility model discloses the tight pipe inner wall of the firm clamp of briquetting has guaranteed tight reliability of preliminary clamp and stability.
Description
Technical field
The utility model relates to a kind of submarine pipeline apparatus for work, specifically submarine pipeline maintenance unit.
Background technique
No matter along with the fast development of economy, also increasing gradually the demand of various different resource, be that rock gas or oil have all had very important status even to this day, and meanwhile, the technology of submarine pipeline in maintenance lacks phenomenon and also come out.At present, China National Offshore Oil Corporation, because the demand of unique geographical position and recover petroleum, is walked in forward position at China's oil development field.The thing followed is exactly, submerged pipeline construction and maintenance problem in the future.
In process used in everyday, submarine pipeline may cause damage to a certain extent because of different reasons.In submarine pipeline maintenance, China technically achieves gratifying achievement at small-diameter, thin-walled pipeline non-solder blocking technology, the salvaging of gas tube bank plate, valve on-line maintenance, has the leading level in the world especially to the research of the visual real-time monitoring system of plugging holes operation.
Current country also continues to increase the attention to the development of submarine pipeline maintenance technique, and " oil and gas pipes conveying national security engineering experiment room " that approval is set up comes into operation.In recent years, Chinese patent CN104196485A discloses one " in pipeline plugging device ", and it is compared with traditional plugging device, and there has been improvement to a certain extent automation aspect, and the shutoff being applicable to large diameter pipeline easy and simple to handle.But supplementary structure needed for internal structure is too much, as hanger part needs to be connected with assisting agency, adds the load to other components to a certain extent.And in fixing seal, only by hanger and assisting agency be slidably connected grappling and sealing on rectilinear orbit direction.
External about the various maintenance techniques for plugging device under damaged condition, wherein modal is build a good maintenance dry type environment by plugging device to keep in repair pipeline equally, thus the impact during minimizing pipeline maintenance, surrounding waters caused.
Summary of the invention
The purpose of this utility model is to provide a kind of submarine pipeline that can complete submarine pipeline shutoff operation to stretch internal-expansion type plugging device.
The purpose of this utility model is achieved in that
A kind of submarine pipeline of the utility model stretches internal-expansion type plugging device, it is characterized in that: comprise pedestal baffle plate, left pedestal, Right socle, right side pedestal fixed dam, axial liquid cylinder mechanism, fixed dam A, convex block, voussoir, fixed dam B, fixed dam C, central shaft, internal hydraulic pressure piston rod, Right socle is fixed on outside the pedestal fixed dam of right side, left pedestal is fixed on outside pedestal baffle plate, left pedestal and Right socle all install radial clamping oil hydraulic cylinder, one end of axial liquid cylinder mechanism is fixed on the inner side of right side pedestal fixed dam, the other end of axial liquid cylinder mechanism is arranged in joint, joint passes fixed dam A and fixes with convex block, convex block and fixed dam C fix, on the left of fixed dam C, voussoir is set, voussoir external stability kickboard, voussoir inside arranges cone structure, cone structure inside arranges liquid presses piston pole, liquid presses piston pole is connected with central shaft, central shaft arranges the convex portion of circumference, the two ends of convex portion withstand on fixed dam B and pressing plate respectively, fixed dam B is adjacent with cone structure with kickboard, the ladder-shaped sealing ring realizing seal action is set between pressing plate and pedestal baffle plate.
The utility model can also comprise:
1, the radial clamping oil hydraulic cylinder on left pedestal and Right socle all has four, and between four radial clamping oil hydraulic cylinders of every side, angle is 90 degree.
Advantage of the present utility model is:
1, the utility model is on the basis adopting hydraulic power supply as single driving, adopts secondary clamping, provides enough large clamping force, well ensure that the carrying out of shutoff work to inner-walls of duct.
2, after the utility model utilizes the local displacement of axial liquid cylinder pressure that centrum mechanism is pushed into limit position, again its reversing motion is made to cone internal hydraulic pressure cylinder conveying liquid force feed, then make the outside swelling of voussoir boosting mechanism by the relative movement between cone surface slide block.One direction of comparing promotes cone and makes slide block movement, and this design has the less advantage of requisite space.
3, preliminary clamping part of the present utility model utilizes the realization of the straight line motion of oil hydraulic cylinder to the clamping of inner-walls of duct and unclamps, the speed of oil hydraulic cylinder and active force are very large, make briquetting firm grip inner-walls of duct, ensure that the reliability and stability of preliminary clamping.
Accompanying drawing explanation
Fig. 1 is one-piece rotor shaft side figure of the present utility model, have employed 1/4 and analyses and observe;
Fig. 2 is sectional view of the present utility model;
Fig. 3 a is radial clamping hydraulic cylinder structure schematic diagram a, Fig. 3 b be radial clamping hydraulic cylinder structure schematic diagram b, Fig. 3 c is radial clamping hydraulic cylinder structure schematic diagram c;
Fig. 4 is radial clamping oil hydraulic cylinder control loop.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 4, the purpose of this utility model is the structural design in order to provide a kind of flexible internal-expansion type plugging device, and it adopts jack shaft to move to the flexible local that realizes of oil hydraulic cylinder group; On the pedestal of left and right, the clamping of hydraulic radial cylinder and the tapered boosting mechanism of voussoir clamp dual method of clamping and carry out pipeline internal fixtion, and compression seal ring realizes mechanism action such as sealing grade, completes the shutoff operation of submarine pipeline.
On pedestal, oil hydraulic cylinder clamping device is the vitals in internal-expansion type plugging device structural design, and the briquetting that piston nose connects directly acts on inner-walls of duct.Plugging device pedestal is uniformly distributed 4 hydraulic radial cylinders in one week, oil hydraulic cylinder is divided into several major parts such as cylinder barrel, piston, bottom, briquetting, directional post.In embodiment, pedestal is main supporting part, and oil hydraulic cylinder is circumferentially the main power source of clamping inwall, and the delivery pressure of oil hydraulic cylinder controls primarily of valve block, and briquetting carries out preliminary pre-clamping to pipe interior under the effect of hydraulic oil.
Two axial liquid cylinder pressures realizing local displacement are connected with the convex block of vertebral body structure by joint.
Voussoir cone boosting mechanism is the major component of this design, and this place's structural design mainly can be divided into the specific design of the promotion oil hydraulic cylinder of cone structure inside, cone structure and slide block structure.Be convex block and fixed dam on the left of cone structure, right side is then carry out constrained motion by assembly and baffle ring, and wherein, convex block is connected with the sunk screw being 20mm by diameter between fixed dam, and is connected by sunk screw too between assembly and baffle ring.Cone surface cover has can the slide block of relative sliding, and the sunk screw being 20mm by diameter between slide block with kickboard is connected.Then be connected by internal and external threads between cone internal piston bar with the required central shaft promoted in right side.
The design of hermetic unit mainly makes customization ladder-shaped sealing ring be compressed by the shaft shoulder on the central shaft under the local displacement effect of axial liquid cylinder pressure and sleeve and moving integrally of baffle plate, thus reaches the effect of sealing.In order to ensure that seal ring can the effect of being better squeezed, take the pre-fastening device identical with left pedestal at opposite side.The uniform diameter of circumference is adopted to be that the screw of 8mm is connected between pedestal with baffle plate.
As shown in Figure 1: the power source of preliminary pre-fastening device is distributed in the identical 8 groups of oil hydraulic cylinders 1 altogether of structure on the pedestal of left and right.First by screw, the boss 48 that compression hydraulic cylinder 1 outer wall welds is fixed with pedestal 33, then by circumferential uniform screw, Right socle 33 and right side pedestal fixed dam 2 are fixed; And cylinder bottom 32 and pedestal baffle plate 2 are fixed by Cock screw by the two groups of axial liquid cylinder pressures realizing axial local displacement; And at opposite side by head bolts and piston rod 5 distal ball own profile, end cap 7 and joint 9 are fixed; Fixed by interior hexagonal cylindrical screw between joint 9 and convex block 10; Convex block 10 is fixed by sunk screw 11 with the fixed dam C29 on right side; In like manner, on the right side of cone mechanism, the fixed dam B15 of position-limiting action adopts sunk screw to be connected with between fixing baffle ring 16; Prevent voussoir 14 and kickboard 13 from moving axially when left and right is spacing, and between voussoir 14 with kickboard 13, the same sunk screw that adopts fix.
Internal hydraulic pressure piston rod 27 and the mode taking between central shaft 24 to be threaded of cone mechanism 28; Under the location of the central shaft shaft shoulder, to be fixed with annular sheet 17 and assembly 218 by positioning screwn M12, between annular sheet 17 and assembly 218 by sleeve 19 and the y-type seal ring arranged between sleeve 19 and assembly 218 prevent fixing after thin plate 17 and assembly 218 have slip relative to central shaft 24.Finally, at assembly 218, central shaft 24 and with under the mutual squeezing action of pedestal baffle plate 20, special ladder-shaped sealing ring 21 plays seal action.
As shown in Figure 2, as the uniform compression hydraulic cylinder 1 be fixed on Right socle 22 and left pedestal 33, because snap ring 35 is elastic elements, can swelling in cylinder barrel 38 annular groove, and fixed by screw 36 and bottom 37, circumference is limited by directional post 34 mobile between bottom 37 and plunger 41, the briquetting 47 at top is connected with plunger 41 by socket head screw 42, be furnished with backing plate 46 between the two, the working procedure of its inside mainly, first with screw, boss 48 and pedestal 33 are fixed, and boss 48 is welded in cylinder barrel 38 outer wall, fixing complete after, by filler opening oil-feed, promote plunger 41 outwards to move, thus drive the briquetting 47 be fixed thereon, after reaching the limit of position, squeezing action is produced by briquetting 47 pairs of inner-walls of duct, thus complete the preliminary fixing of plugging device.
Working procedure of the present utility model is as follows: be from right to left in three dimensional sectional view moving direction, first, under the control of hydrovalve, oil hydraulic cylinder 1 piston on the pedestal of left and right promotes briquetting 47 clamping pipe inwall, play and tentatively pre-fix effect, the position of left and right pedestal is fixed, facilitates subsequent motion.
Then, driving axial oil hydraulic cylinder carries out axial local displacement, axial liquid cylinder pressure is made up of component 3,4,5,6,7, axial piston bar 5 moves, drive the joint 9 fixing with it, and joint 9 and convex block 10 are fixed, by promoting convex block 10 and fixed dam C29 fixed thereon, indirect promotion cone mechanism 28 entirety, fixed dam B15 and central shaft 24 and assembly 218 axial motion, with under the squeezing action of left side pedestal, good seal action is played in ladder-shaped sealing ring 21 swelling of customization.
After this, when the cone internal piston bar 27 be threaded connection reaches the limit of position together with central shaft 24, drive the in-house hydraulic cylinder of cone, due to piston rod 27 second step motion in limit position, therefore under the active force of hydraulic oil, promote the reverse local displacement to the right of cone mechanism 28, thus produce relative movement with the voussoir 14 on cone mechanism 28 surface, the voussoir 14 of relative movement drives the kickboard 13 fixed with it outwards to move, little briquetting 12 clamping pipe inwall is inlayed finally by welding and the densely covered of kickboard surface, play the effect of secondary clamping.So far, all movement processes are completed.
Claims (2)
1. a submarine pipeline stretches internal-expansion type plugging device, it is characterized in that: comprise pedestal baffle plate, left pedestal, Right socle, right side pedestal fixed dam, axial liquid cylinder mechanism, fixed dam A, convex block, voussoir, fixed dam B, fixed dam C, central shaft, internal hydraulic pressure piston rod, Right socle is fixed on outside the pedestal fixed dam of right side, left pedestal is fixed on outside pedestal baffle plate, left pedestal and Right socle all install radial clamping oil hydraulic cylinder, one end of axial liquid cylinder mechanism is fixed on the inner side of right side pedestal fixed dam, the other end of axial liquid cylinder mechanism is arranged in joint, joint passes fixed dam A and fixes with convex block, convex block and fixed dam C fix, on the left of fixed dam C, voussoir is set, voussoir external stability kickboard, voussoir inside arranges cone structure, cone structure inside arranges liquid presses piston pole, liquid presses piston pole is connected with central shaft, central shaft arranges the convex portion of circumference, the two ends of convex portion withstand on fixed dam B and pressing plate respectively, fixed dam B is adjacent with cone structure with kickboard, the ladder-shaped sealing ring realizing seal action is set between pressing plate and pedestal baffle plate.
2. a kind of submarine pipeline according to claim 1 stretches internal-expansion type plugging device, it is characterized in that: the radial clamping oil hydraulic cylinder on left pedestal and Right socle all has four, and between four radial clamping oil hydraulic cylinders of every side, angle is 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828172.8U CN205208029U (en) | 2015-10-23 | 2015-10-23 | Expanding plugging device in submarine pipeline is flexible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520828172.8U CN205208029U (en) | 2015-10-23 | 2015-10-23 | Expanding plugging device in submarine pipeline is flexible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205208029U true CN205208029U (en) | 2016-05-04 |
Family
ID=55845746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520828172.8U Withdrawn - After Issue CN205208029U (en) | 2015-10-23 | 2015-10-23 | Expanding plugging device in submarine pipeline is flexible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205208029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221888A (en) * | 2015-10-23 | 2016-01-06 | 哈尔滨工程大学 | A kind of submarine pipeline stretches internal-expansion type plugging device |
-
2015
- 2015-10-23 CN CN201520828172.8U patent/CN205208029U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221888A (en) * | 2015-10-23 | 2016-01-06 | 哈尔滨工程大学 | A kind of submarine pipeline stretches internal-expansion type plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20170524 |
|
| AV01 | Patent right actively abandoned |