CN221100251U - Water-proof pipe butt joint pressure testing device based on series-parallel structure - Google Patents
Water-proof pipe butt joint pressure testing device based on series-parallel structure Download PDFInfo
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- CN221100251U CN221100251U CN202321724463.3U CN202321724463U CN221100251U CN 221100251 U CN221100251 U CN 221100251U CN 202321724463 U CN202321724463 U CN 202321724463U CN 221100251 U CN221100251 U CN 221100251U
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 210000001503 joint Anatomy 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 description 5
- 230000036544 posture Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an automatic butt joint device for pressure test of marine risers, which can simultaneously test all the pipelines of a marine riser. The test device comprises a position serial movement platform, a gesture parallel adjustment platform and a plugging flange, wherein the position serial movement platform is controlled by a motor screw rod and can translate along an X axis and a Y axis, the gesture parallel adjustment platform consists of four electric cylinder push rods and a central support spherical hinge and can rotate around a X, Y, Z axis so as to adjust the gesture of a flange plate. Because the parallel-serial structure is adopted, the gesture and the position adjustment can be decoupled, and the central support spherical hinge of the parallel structure can balance the weight of the plugging flange, so that the power of the electric cylinder push rod is reduced, and the stability and the rapidity of the system are ensured.
Description
Technical Field
The invention belongs to the field of marine riser preparation tests, and particularly relates to an automatic butt joint device for a marine riser pressure test process.
Background
The marine riser is a key component in marine oil and gas exploitation, and because the marine riser is influenced by sea water pressure and pipeline internal pressure in the ocean, the working condition is very bad, and the marine riser pressure-resistant test is an important detection means for detecting the quality of the marine riser. The port size of the water-proof pipe is relatively large, and the water-proof pipe consists of a main pipe and a non-root auxiliary pipe, and the pressure test end also has the characteristics of large volume and large size, so that the pressure test end and the water-proof pipe are difficult to quickly and accurately realize butt joint.
At present, most of the pressure testing tools in the maritime work market are hydraulically driven, a hydraulic system has an impact effect, potential risks are brought to pressure testing, and some pressure testing tools are designed into a series structure, and the series structure needs larger driving force due to the fact that the pressure testing end is large in size and large in inertia, so that the pressure testing end is difficult to maintain in position and posture. Therefore, the invention designs a series-parallel structure, which decouples the position and the gesture adjusting part, the position part adopts a right-angle bench structure, the gesture part adopts a parallel structure, and the whole series-parallel structure ensures the adjusting precision and the adjusting time of the system, improves the position maintaining precision and reduces the driving power of an actuator.
Disclosure of Invention
The invention aims to overcome the defect that the conventional marine riser pressure test device cannot realize simultaneous butt joint of all pipe diameters rapidly and accurately, and provides an automatic butt joint device for marine underwater riser pressure test.
The invention solves the technical problems by the following technical scheme:
The utility model provides a marine riser butt joint pressure testing device based on series-parallel structure, its characteristics lie in, by motor lead screw driven tandem structure's horizontal moving platform, including horizontal track, slider, power device, horizontal moving platform, stop device, transmission, drum and flange and counter weight are constituteed, horizontal track is perpendicular with marine riser direction of placing, driving motor that has reduction gear and arresting gear is installed to horizontal track one end, ball bearing is installed to the other end, installs the lead screw push rod between driving motor and the bearing, horizontal displacement drive arrangement is constituteed with the bearing to driving motor, lead screw push rod, horizontal drive arrangement passes through screw nut, slider and is connected with horizontal moving platform, horizontal moving platform passes through horizontal drive arrangement drive along horizontal track motion.
Further, 4 limit rods are arranged on the transverse moving platform, the limit rods are vertical to the transverse moving platform, the bottom ends of the limit rods are respectively fixedly connected with the transverse moving platform, the limit rods are connected with the vertical moving platform through linear bearings, the limiting device is used for limiting the vertical moving platform to only move in a vertical translational mode, so that the phenomenon of blocking does not exist when the vertical moving platform moves up and down in a translational mode, and the top end of the limiting rod is provided with a spring damper serving as a protecting device.
Further, install driving motor, reduction gear, arresting gear on the lateral shifting platform, with the perpendicular drive arrangement of gag lever post parallel lead screw push rod constitution, be connected through screw nut between lead screw push rod and the perpendicular shifting platform, perpendicular shifting platform includes 4 gag lever posts, and when driving motor drive lead screw push rod rotated, perpendicular shifting platform moved along the gag lever post direction.
Further, a center upright post is arranged on the vertical moving platform and is connected with the circular tube through a spherical hinge, the spherical hinge is arranged below the geometric center of the circular tube, the spherical hinge is a low pair, and the center upright post can balance the gravity of the upper device through the spherical hinge.
Further, install 4 ball hinges on the vertical moving platform, every ball hinge is connected with an electric jar push rod, and the top of electric jar push rod is connected with the pipe through the ball hinge, and the flexible cooperation of electric jar push rod can realize the regulation of the three degree of freedom postures of pipe, because the posture adjustment scope is less in the butt joint process, and this structure can satisfy the butt joint requirement completely, and pipe gravity is balanced by central ball hinge mostly, and the power of electric jar push rod can be reduced.
Further, the front end of the circular tube is connected with a flange, the flange is in butt joint with the water isolation tube, and the flange is provided with a through hole and a pressure test liquid filling hole which correspond to the water isolation tube; the tail end of the circular tube is connected with a counterweight disc, so that the gravity center is almost positioned in the geometric center.
Furthermore, the center of the circular tube can ensure that the pressure test liquid filling tube passes through the flange opening and is connected with the plugging flange, so that the pressure test liquid filling tube penetrates through the center circular hole of the counterweight end and penetrates out of the front flange plate, and the specification of on-site wiring is ensured.
The beneficial effects of the invention are as follows: because the parallel-serial structure is adopted, the gesture part and the position part can be subjected to structural decoupling, gesture adjustment is firstly carried out, after the pressure testing flange end face is parallel to the marine riser end face, the central axis alignment is realized by adjusting transverse and vertical translation, because the pressure testing device is large in size and large in inertia, the transverse and vertical translation is adjusted by adopting a lead screw, the rigidity of larger position control can be ensured, thereby the position control precision is ensured, the gesture adjustment is realized by a parallel structure, the parallel structure has the characteristics of large rigidity and accurate position control, the gravity of a circular tube is balanced by a central spherical hinge, the power of 4 electric cylinder push rods is reduced, thereby the purpose of energy conservation is realized, and the rapidity of adjustment is also ensured.
Drawings
FIG. 1 is a block diagram of a lateral translation device for a riser pressure test end;
FIG. 2 is a perspective view of a lateral translation device for the pressure test end of a riser;
FIG. 3 is a perspective view of an internal limiting device of the pressure test end of the riser;
FIG. 4 is a perspective view of a vertical translation device of a pressure test end of a riser;
FIG. 5 is a block diagram of the electric putter device;
FIG. 6 is a block diagram of the entire device of the riser pressure test end;
Marked in the figure as: the device comprises a transverse track 1, a first driving motor 2, a first lead screw push rod 3, a first lead screw nut 4, a first bearing 5, a second bearing 6, a sliding block 7, a transverse moving platform 8, a limiting rod 9, a second driving motor 10, a second lead screw push rod 11, a second lead screw nut 12, a vertical moving platform 13, a linear bearing 14, a first spherical hinge 15, an electric cylinder push rod 16, a second spherical hinge 17, a circular tube 18, a third spherical hinge 19, a flange plate 20, a counterweight 21, a central upright 22, a liquid filling pressurization tube 23 and a gesture adjusting platform 24 in a parallel structure.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the invention comprises a transverse translation device, a longitudinal translation device and a posture adjustment device with a parallel structure, wherein the transverse translation device comprises a transverse track (1), and a transverse moving platform (8) is arranged on the transverse track (1) and can translate along the transverse track (1). The transverse track (1) needs to have enough width so as to ensure that the pressure testing device cannot rollover in the pose adjusting process and the butt joint contact process. The transverse track (1) is fixed on a flat ground, one end of the transverse track is provided with a first driving motor (2) through a screw, and a rotor shaft of the first driving motor (2) is connected with a first screw rod (3). The first lead screw push rod (3) is a trapezoidal lead screw, but is not limited to a trapezoidal lead screw, the lead of the first lead screw push rod (3) is not more than 2mm, the tail end of the first lead screw push rod (3) is connected with the second bearing (6), and the bearing is fixedly connected with the transverse track through a screw, so that the first lead screw push rod (3) and the transverse track are in a parallel state. The first driving motor (2) is provided with a reduction gear, so that the output torque of the motor is ensured to reach an expected value, the rated torque output by the shaft end of the first driving motor (2) is not less than 200Nm, and meanwhile, the first driving motor (2) is provided with a braking device, and when the platform reaches a set position, the braking device is started, so that the position of the device is ensured to be unchanged when the device is subjected to external interference.
Specifically, as shown in fig. 2 and 3, the vertical translation device includes 4 limit rods fixed on the lateral movement platform (8), the limit rods need to have a sufficient diameter to ensure that the limit rods cannot deform due to tangential stress in the adjustment process, the limit rods are perpendicular to the lateral movement platform (8), and the bottom ends of the limit rods (9) are respectively fixedly connected with the lateral movement platform (8) and are parallel to each other. The blind hole is opened at corresponding position on vertical moving platform (13), is equipped with linear bearing in the blind hole, and linear bearing (14) and gag lever post (9) cooperation guarantee that vertical moving platform (13) translate along the gag lever post direction, and gag lever post bottom upwards installs spacing retaining ring in certain position, avoid out of control state down vertical moving platform (13) direct with lateral shifting platform (8) contact to the protection is installed in the drive arrangement of vertical moving platform on lateral shifting platform (8). Because the vertical adjusting range is smaller, the spring damping device is arranged at the top end of the limiting rod, and the safety of the device in the falling contact process of the vertical moving platform is ensured under the out-of-control state. Of course, the spring damper may be mounted in the blind bore above the linear bearing.
Specifically, as shown in fig. 3, the vertical platform driving device comprises a second driving motor (10) fixed on the horizontal moving platform (8), a second lead screw push rod (11) and a second lead screw nut (12) fixedly connected with the vertical moving platform, wherein the second lead screw push rod (11) is a trapezoidal lead screw to ensure sufficient rigidity, and the lead of the second lead screw push rod (11) is not more than 2mm. The second driving motor (10) is provided with a reduction gear, and has enough output torque through PLC control, and the output torque of the shaft end of the second driving motor (10) is not less than 300Nm. The screw rod push rod II (11) is matched with the vertical moving platform through the screw rod nut II (12), and when the driving motor II (10) drives the screw rod push rod II (11) to rotate, the translation of the vertical platform in the vertical direction can be realized.
Specifically, as shown in fig. 4 and fig. 5, the gesture adjusting platform (24) with the parallel structure comprises 4 spherical hinges one (15) fixed on the vertical moving platform (13), 4 electric cylinder push rods (16) connected with the 4 spherical hinges one (15), the top ends of the 4 electric cylinder push rods (16) are connected with a circular tube through 4 spherical hinges two (17), a spherical hinge three (19) is arranged below the center of the circular tube, and the spherical hinge three is connected with a central upright post. The central axis of the spherical hinge three base needs to point to the circular tube (18), so that the position adjustment process is guaranteed to fully utilize the part near the central axis of the spherical hinge three base. The three spherical hinges arranged on the round tube are ensured in an initial state, and the base axes of the three spherical hinges are overlapped with the axes of the corresponding electric cylinder push rod and the corresponding spherical hinge base on the vertical moving platform. The flange plate can reach the expected posture position by adjusting the telescopic length of the 4 electric cylinder push rods (16).
Specifically, as shown in fig. 6, the hole in the middle of the circular tube can pass through the pressure test liquid filling tube, one end of the circular tube (18) is fixedly connected with a pressure test flange plate, the pressure test flange plate can be completely matched with the riser flange plate, the pressure test flange plate is provided with corresponding screw holes, the pressure test flange plate and the riser flange plate can be fixed, and the fixing screws can be realized by various locking devices. The tail end of the circular tube is fixedly connected with a counterweight disc, and the counterweight disc is of a hollow structure, so that the gravity center of the dumbbell-shaped circular tube can be ensured to be near the geometric center. The pressure test liquid filling pipe penetrates through the round hole at the counterweight end and penetrates out of the pressure test flange end, so that the safety of pipelines and equipment in the adjusting process can be ensured.
Claims (8)
1. The utility model provides a marine riser butt joint pressure testing device based on series-parallel connection structure which characterized in that: the pressure test device comprises a transverse moving platform (8) with a serial structure, a vertical moving platform (13) and a gesture adjusting platform (24) with a parallel structure, wherein the transverse moving platform is driven by a motor screw, and a pressure test pipeline passes through a flange opening and is connected with a plugging flange.
2. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 1, wherein: the transverse moving platform (8) comprises a transverse track (1), a first driving motor (2), a first screw rod (3), a first screw nut (4), a first bearing (5) and a second bearing (6), and the first driving motor (2) drives the first screw rod (3) and the first screw nut (4) to move the sliding block (7) to realize transverse displacement of the transverse moving platform (8).
3. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 2, wherein: the first driving motor (2) is matched with the first screw rod (3) for position control, the first screw rod (3) is connected with the sliding block (7) through the first screw nut (4) and the transverse moving platform (8), and the other end of the first screw rod (3) is connected with the second bearing (6).
4. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 1, wherein: the vertical moving platform comprises 4 limit rods (9), a driving motor II (10), a screw rod push rod II (11), a screw rod nut II (12), 4 linear bearings (14) fixed on the vertical moving platform (13), wherein the limit rods (9) and the linear bearings (14) are matched to ensure that the vertical moving platform does not move horizontally or change in posture in the moving process, and the driving motor II (10) drives the screw rod push rod II (11) to move the vertical moving platform (13) vertically.
5. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 4, wherein: the bottom ends of the limiting rods (9) are respectively fixedly connected with the transverse moving platform (8), the limiting rods (9) are connected to the vertical moving platform (13) through linear bearings (14), the phenomenon that the vertical moving platform (13) is blocked when moving up and down is avoided, and spring dampers are arranged at the top ends of the limiting rods (9) to serve as protection devices.
6. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 1, wherein: the gesture adjustment platform (24) of the parallel structure comprises a vertical moving platform (13), 4 spherical hinges one (15), 4 electric cylinder push rods (16), 4 spherical hinges two (17), a round tube (18), a spherical hinge three (19), a flange plate (20), a counterweight (21) and a central upright post (22).
7. The marine riser butt joint pressure testing device based on the series-parallel connection structure according to claim 4, wherein: the upper surface of the vertical moving platform (13) is fixed with 4 first spherical hinges (15), the 4 first spherical hinges (15) are respectively connected with 4 electric cylinder push rods (16), the other ends of the electric cylinder push rods (16) are connected with second spherical hinges (17), and the second spherical hinges (17) are connected with round tubes (18); the circular tube (18) is connected with the vertical moving platform through a spherical hinge III (19), one end of the circular tube (18) is connected with the flange plate (20), and the other end is connected with the counterweight (21); the round tube (18) can pass through a pressure test pipeline.
8. The marine riser butt joint pressure testing device based on the series-parallel connection structure of claim 6, wherein: the central upright post (22) is connected with the circular tube (18) through a spherical hinge III (19), the bottom end of each electric cylinder push rod is connected with the vertical moving platform (13) through a spherical hinge I (15), and the top end of each electric cylinder push rod is connected with the circular tube (18) through a spherical hinge II (17); the pressure test liquid filling pressurizing tube bundle (23) penetrates through the circular tube (18) and is connected with the flange plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724463.3U CN221100251U (en) | 2023-07-04 | 2023-07-04 | Water-proof pipe butt joint pressure testing device based on series-parallel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724463.3U CN221100251U (en) | 2023-07-04 | 2023-07-04 | Water-proof pipe butt joint pressure testing device based on series-parallel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221100251U true CN221100251U (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321724463.3U Active CN221100251U (en) | 2023-07-04 | 2023-07-04 | Water-proof pipe butt joint pressure testing device based on series-parallel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221100251U (en) |
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2023
- 2023-07-04 CN CN202321724463.3U patent/CN221100251U/en active Active
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