CN117489279B - Ocean engineering drilling riser installation device - Google Patents
Ocean engineering drilling riser installation device Download PDFInfo
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- CN117489279B CN117489279B CN202311824084.6A CN202311824084A CN117489279B CN 117489279 B CN117489279 B CN 117489279B CN 202311824084 A CN202311824084 A CN 202311824084A CN 117489279 B CN117489279 B CN 117489279B
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- 238000009434 installation Methods 0.000 title claims abstract description 36
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Abstract
The invention relates to the technical field of ocean drilling engineering and discloses an ocean engineering drilling riser installation device. Under the respective telescopic actions of the lower elastic mechanism, the upper elastic mechanism and the elastic connecting rods, the outer wall of the drilling riser is kept fixedly connected with the lower stabilizing ring, the fixed disc of the fixed part and the upper stabilizing ring respectively, and the sliding balance unit slides under the common limitation of the tray and the penetrating holes to balance the mutual sliding of the drilling riser and the drilling platform on the horizontal plane; meanwhile, when the drilling riser can slide up and down in the through hole, the drilling riser is kept in the center of the fixed disc, and the drilling riser and the drilling platform slide up and down in the vertical direction; therefore, the relative sliding of the drilling riser in all directions between the drilling riser and the drilling platform can be absorbed while the drilling riser is effectively fixed, the drilling riser can be ensured to be connected with the drilling platform, and higher stability of the drilling riser is provided.
Description
Technical Field
The invention relates to the technical field of ocean drilling engineering, in particular to an ocean engineering drilling riser installation device.
Background
The seabed is rich in oil and gas, mineral products and other resources, and the resources need to be developed from the seabed and then transferred to land from the sea in a long distance. In offshore development, a wide variety of surface facilities are typically used. In offshore drilling operations, for example, it is necessary to return drilling fluid and mud fragments from subsea drilling to a surface platform; in the offshore oil and gas production process, the submarine resources are usually transported to a water surface platform for processing and storage, and then transported outwards. The mineral resources collected at the sea bottom are also required to be transported to a water surface platform (or a ship) in a certain mode and then transported.
Thus, a vertical pipe suspended on various offshore facilities is provided, and the vertical pipe is like a seat of a vertical lift in the ocean, so as to provide continuous lifting conveying service for various passengers. Some are responsible for delivering oil, some deliver natural gas, and sometimes water or medicaments. In addition to gaseous and liquid media, solid materials such as ores can also be transported with the seawater from the riser to the surface. The various risers can make their own life in the ocean, and cover various links of drilling, production and export.
The existing drilling riser installation device locks the drilling riser and the drilling platform usually through strong rigid connection, the longer drilling riser can swing to a certain extent due to the effects of tides and wind power, the rigid connection in the prior art cannot balance the relative movement between the drilling riser and the drilling platform, abrasion is easily caused between the drilling riser and the drilling platform, and the service life of the drilling riser is lower.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a marine engineering drilling riser installation device.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides an ocean engineering drilling riser installation device, includes connecting portion, the connecting portion below is provided with down stabilizing ring, the connecting portion top is provided with the stabilizing ring, the connecting portion top still is provided with fixed part, fixed part pass through elastic connection pole with swing joint between the connecting portion, the connecting portion can be fixed with drilling platform between the connection, down stabilizing ring pass through down elastic mechanism with swing joint between the connecting portion, go up stabilizing ring pass through last elastic mechanism with swing joint between the connecting portion; the drilling vertical pipe is characterized in that a tray is arranged in the center of the connecting part, the connecting part is fixedly connected with the tray through a plurality of rigid connecting pieces, a penetrating hole is formed in the center of the tray, the drilling vertical pipe can penetrate through the penetrating hole, a sliding balance unit is arranged in the tray, a connecting flange of the drilling vertical pipe can be fixed on the sliding balance unit, the sliding balance unit can freely slide in the tray within a limited range of the tray, and the drilling vertical pipe can slide under the common limitation of the tray and the penetrating hole through the sliding balance unit; the fixed part comprises a fixed disc, the fixed disc passes through the elastic connection pole with fixed connection between the connecting portion, the fixed disc bottom is provided with a plurality of hoist and mount telescopic link, the fixed disc with through a plurality of between the tray hoist and mount telescopic link sliding connection, the through-hole has been seted up to the fixed disc central authorities, the aperture of through-hole can be adjusted along with the aperture of drilling riser, and the drilling riser is in when the inside upper and lower slip of through-hole, the drilling riser keeps the central authorities of fixed disc.
Preferably, the diameter of the penetrating hole is larger than that of the drilling riser, the sliding balance unit comprises two fixed rings and two movable connecting discs, the two fixed rings are respectively arranged on the upper side and the lower side of the two movable connecting discs, and the two fixed rings are coaxially fixed with the tray; the two movable connecting discs can be respectively fixed with the connecting flange of the drilling riser, and the two movable connecting discs are respectively positioned at the upper side and the lower side of the connecting flange of the drilling riser.
Preferably, a plurality of embedded grooves are formed in one side surface, close to the movable connecting disc, of the fixed ring, each embedded groove is internally embedded with a rolling ball, and each rolling ball can freely roll in the corresponding embedded groove; one surface of the movable connecting disc, which is close to the corresponding fixed ring, can be in contact with each rolling ball embedded in the surface of the corresponding fixed ring, and the movable connecting disc can slide under the limit of the fixed ring through rolling of each rolling ball.
Preferably, the inner diameters of the two fixing rings are equal to the diameter of the penetrating hole, and the inner diameters of the two fixing rings are both larger than the outer diameter of the connecting flange of the drilling riser; the inner diameters of the two movable connection discs are the same as the outer diameter of the drilling riser, the outer diameters of the two movable connection discs are larger than the inner diameter of the fixed ring, and the outer diameters of the two movable connection discs are smaller than the outer diameter of the fixed ring.
Preferably, a driven gear ring is fixedly arranged on one side surface of the two fixing rings, which is close to each other, a rotary driving motor is further arranged in the tray, an output end of the rotary driving motor is provided with an inclined output gear, and the inclined output gear is respectively meshed with the two driven gear rings; the rotary driving motor can drive the two driven gear rings to drive the two fixed rings to rotate in opposite directions through the inclined output gears respectively.
Preferably, the fixing disc comprises a plurality of sub-fixing discs, two adjacent sub-fixing discs are connected with each other through a plurality of arc-shaped connecting rods, each arc-shaped connecting rod comprises an outer sleeve, an inner sleeve and a tension spring, the outer sleeve and the inner sleeve are arc-shaped, and the outer sleeve is nested outside the inner sleeve; the two ends of the extension spring are respectively fixed with one end of the inner sleeve rod extending into the outer sleeve and the inner wall of the outer sleeve, and the elastic force of the extension spring can drive the inner sleeve rod to move towards the inner part of the outer sleeve.
Preferably, when the drilling riser passes through the through hole, each extension spring can provide elastic force to drive the two sub-fixing discs at two ends of each extension spring to be close to each other; under the action of the elasticity of each extension spring, each sub-fixing disc has a trend of moving towards the central axis of the drilling riser, and provides pressure for temporarily fixing the drilling riser on the outer wall of the drilling riser.
Preferably, the connecting part further comprises a plurality of fixing pieces, and the bottom end of each rigid connecting piece is fixed with one fixing piece respectively; the fixing piece comprises an upper fixing plate and a lower fixing plate, a storage groove is formed in one side, close to the lower fixing plate, of the upper fixing plate, and a limiting clamping plate is arranged on one side, close to the upper fixing plate, of the lower fixing plate; the spacing cardboard can slide and get into accomodate inside the groove, and go up the fixed plate with interval between the fixed plate down can be through spacing cardboard embedding accomodate the degree of depth in groove and adjust.
Preferably, the depth of the limit clamping plate embedded into the storage groove can be adjusted according to the thickness of the drilling platform; the upper fixing plate, the lower fixing plate and the drilling platform are all provided with a plurality of through holes, and the upper fixing plate, the drilling platform and the lower fixing plate can be temporarily fixed through the coaxial through holes by screws.
Preferably, the lower stabilizing ring and the upper stabilizing ring can be fixed with the outer wall of the drilling riser respectively, and the lower elastic mechanism and the upper elastic mechanism comprise a plurality of hydraulic telescopic rods; the hydraulic telescopic rods can be respectively and independently telescopic, and the included angle and the distance between the lower stabilizing ring and the connecting part can be adjusted through the telescopic action of the hydraulic telescopic rods of the lower elastic mechanism; the included angle and the distance between the upper stabilizing ring and the connecting part can be adjusted through the expansion and contraction of the hydraulic expansion rods of the upper elastic mechanism.
Compared with the prior art, the invention provides a marine engineering drilling riser installation device, which has the following beneficial effects:
1. according to the ocean engineering drilling riser installation device, the drilling riser can drive the sliding balance unit to slide under the common limitation of the tray and the penetrating holes, and simultaneously, the outer wall of the drilling riser is kept fixedly connected with the lower stabilizing ring, the fixed disc of the fixed part and the upper stabilizing ring respectively under the respective telescopic actions of the lower elastic mechanism, the upper elastic mechanism and the respective elastic connecting rods, so that the sliding balance unit slides under the common limitation of the tray and the penetrating holes, and the mutual sliding between the drilling riser and the drilling platform on the horizontal plane is balanced; simultaneously, when the drilling riser can slide up and down in the through hole, the drilling riser is kept in the center of the fixed disc, and simultaneously under the respective telescopic actions of the lower elastic mechanism, the upper elastic mechanism and the plurality of hoisting telescopic rods, the outer wall of the drilling riser is kept fixedly connected with the lower stabilizing ring and the upper stabilizing ring respectively, and the connecting flange of the drilling riser is kept fixedly with the sliding balance unit so as to balance the up-down sliding of the drilling riser and the drilling platform in the vertical direction; therefore, the relative sliding of the drilling riser in all directions between the drilling riser and the drilling platform can be absorbed while the drilling riser is effectively fixed, the drilling riser can be ensured to be connected with the drilling platform, and higher stability of the drilling riser is provided.
2. This kind of ocean engineering drilling riser installation device, drilling riser's flange can be stably fixed between two movable connection pads, and contact between each embedded each rolling ball of each embedded groove inside with the fixed ring surface that corresponds respectively to two movable connection pads, with the friction between two movable connection pads respectively and the fixed ring that corresponds change into the rolling friction of each rolling ball from sliding friction, can effectively reduce the friction loss between two movable connection pads respectively and the fixed ring that corresponds, can show the life that improves two movable connection pads and two fixed rings, thereby improve whole ocean engineering drilling riser installation device's life.
3. This kind of ocean engineering drilling riser installation device, rotatory driving motor can constantly export power through oblique output gear, oblique output gear can drive two driven ring gears respectively simultaneously and do the rotation in opposite directions with two fixed rings that two driven ring gears are fixed respectively, in order can constantly produce the dislocation between two movable connection pads respectively and the fixed ring that corresponds, in order to reduce in the in-service use, two movable connection pads concentrate in a certain position with the wearing and tearing in the fixed ring that corresponds respectively, can equally produce wearing and tearing at two movable connection pads and two fixed rings (each rolling ball that two fixed ring surfaces set up) surface equalization, in order to can improve the life of two movable connection pads and two fixed rings, the length of time of use of whole ocean engineering drilling riser installation device is prolonged.
4. This kind of ocean engineering drilling riser installation device carries out interval adjustment under the restriction of each arc connecting rod through the sub-fixed disk of fixed disk to can adjust the external diameter of the drilling riser that the through-hole can be restricted, in order to adapt to the drilling riser of multiple specification, can return the skew between drilling riser and the fixed disk through the inside extension spring of each arc connecting rod and just compensate, and under each extension spring's elasticity effect, each sub-fixed disk all has the trend that removes to the drilling riser axis, provides pressure to the drilling riser outer wall, can fix the drilling riser inside the through-hole of fixed disk effectively.
Drawings
FIG. 1 is a schematic illustration of an installation of a marine drilling riser installation apparatus and a drilling platform according to the present invention;
FIG. 2 is a schematic diagram showing a marine drilling riser installation apparatus and a drilling platform according to a second embodiment of the present invention;
FIG. 3 is a schematic perspective view of a marine drilling riser installation apparatus according to the present invention;
FIG. 4 is a schematic diagram showing a second perspective view of a marine drilling riser installation apparatus according to the present invention;
FIG. 5 is a schematic perspective view of the connecting portion, the fixing portion and the tray of the present invention;
FIG. 6 is a schematic perspective view of a fixing member according to the present invention;
FIG. 7 is a schematic perspective view of a fixed disk of the present invention;
fig. 8 is a schematic perspective view of a sliding balance unit and a rotary driving motor according to the present invention;
fig. 9 is a schematic diagram showing an assembled structure of the sliding balance unit and the rotary driving motor of the present invention.
In the figure: 1. a connection part; 11. a rigid connection; 12. an elastic connecting rod; 13. a fixing member; 131. an upper fixing plate; 1311. a storage groove; 132. a lower fixing plate; 1321. a limiting clamping plate; 2. a lower stabilizing ring; 3. a stabilization ring is arranged on the upper part; 4. a fixing part; 41. a fixed plate; 411. a through hole; 412. a sub-fixing plate; 413. an arc-shaped connecting rod; 4131. an outer sleeve; 4132. an inner loop bar; 4133. a tension spring; 42. hoisting the telescopic rod; 5. a lower elastic mechanism; 6. an upper elastic mechanism; 7. a tray; 71. a penetrating hole; 72. a sliding balance unit; 721. a fixing ring; 7211. an embedding groove; 7212. a rolling ball; 722. a movable connecting disc; 723. a driven gear ring; 73. a rotary drive motor; 731. and a bevel output gear.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As described in the background art, the present application provides a marine engineering drilling riser installation device to solve the above technical problems.
Referring to fig. 1-9, a marine engineering drilling riser installation device comprises a connecting part 1, wherein a lower stabilizing ring 2 is arranged below the connecting part 1, an upper stabilizing ring 3 is arranged above the connecting part 1, a fixing part 4 is also arranged above the connecting part 1, the fixing part 4 is movably connected with the connecting part 1 through an elastic connecting rod 12, the connecting part 1 can be fixedly connected with a drilling platform, the lower stabilizing ring 2 is movably connected with the connecting part 1 through a lower elastic mechanism 5, and the upper stabilizing ring 3 is movably connected with the connecting part 1 through an upper elastic mechanism 6; the center of the connecting part 1 is provided with a tray 7, the connecting part 1 is fixedly connected with the tray 7 through a plurality of rigid connecting pieces 11, the center of the tray 7 is provided with a penetrating hole 71, a drilling riser can penetrate through the penetrating hole 71, the inside of the tray 7 is provided with a sliding balance unit 72, a connecting flange of the drilling riser can be fixed on the sliding balance unit 72, the sliding balance unit 72 can freely slide in the tray 7 within the limited range of the tray 7, and the drilling riser can slide under the common limitation of the tray 7 and the penetrating hole 71 through the sliding balance unit 72; the fixed part 4 comprises a fixed disc 41, the fixed disc 41 is fixedly connected with the connecting part 1 through an elastic connecting rod 12, a plurality of hoisting telescopic rods 42 are arranged at the bottom end of the fixed disc 41, the fixed disc 41 is slidably connected with the tray 7 through the plurality of hoisting telescopic rods 42, a through hole 411 is formed in the center of the fixed disc 41, the aperture of the through hole 411 can be adjusted along with the aperture of the drilling riser, and the drilling riser is kept at the center of the fixed disc 41 when the drilling riser slides up and down in the through hole 411.
When the ocean engineering drilling riser installation device is used, firstly, the ocean engineering drilling riser installation device is fixed on a drilling platform through a connecting part 1, and then the drilling riser is connected with the ocean engineering drilling riser installation device from bottom to top through a lower stabilizing ring 2, a penetrating hole 71 formed in the center of a tray 7, a sliding balance unit 72 arranged in the tray 7, a penetrating hole 411 formed in the center of a fixing disc 41 of a fixing part 4, and an upper stabilizing ring 3; the outer wall of the drilling riser is fixedly connected with the lower stabilizing ring 2, the fixing disc 41 of the fixing part 4 and the upper stabilizing ring 3 respectively (the outer wall of the drilling riser is fixedly connected with the lower stabilizing ring 2 and the upper stabilizing ring 3 respectively through fasteners, the connection between the outer wall of the drilling riser and the fixing disc 41 of the fixing part 4 provides pressure fixation for the outer wall of the drilling riser through elastic members, and is described in detail later through the specific structure of the fixing disc 41), the connection flange of the drilling riser is fixedly connected with the sliding balance unit 72 (the connection fixation manner between the connection flange of the drilling riser and the sliding balance unit 72 is described in detail later through the specific structure of the sliding balance unit 72), and the fixation between the drilling riser and the marine engineering drilling riser installation device is fixed through the above-mentioned fixation manner so as to ensure the stable connection between the drilling riser and the drilling platform through the marine engineering drilling riser installation device;
in the actual use process of the marine engineering drilling riser installation device, due to the fact that the drilling riser and the drilling platform are subjected to the action of ocean currents, wind power and the like when in operation, the drilling riser and the drilling platform are easy to slide up and down in the horizontal plane, and slide up and down in the vertical direction, in the fixing process of the marine engineering drilling riser installation device to the drilling riser, the drilling riser can drive the sliding balance unit 72 to slide under the common limitation of the tray 7 and the penetrating hole 71, and simultaneously the outer wall of the drilling riser is fixedly connected with the fixing disc 41 of the lower stabilizing ring 2, the fixing part 4 and the upper stabilizing ring 3 respectively under the respective telescopic actions of the lower elastic mechanism 5 and the upper elastic mechanism 6 (the lower elastic mechanism 5 and the upper elastic mechanism 6 respectively comprise a plurality of hydraulic telescopic rods) and the respective telescopic actions of the respective elastic connecting rods, so that the sliding balance unit 72 slides under the common limitation of the tray 7 and the penetrating hole 71, and the drilling platform (the connecting part 1) are balanced, and the mutual sliding in the horizontal plane is kept; simultaneously, when the drilling riser can slide up and down in the through hole 411, the drilling riser is kept in the center of the fixed disc 41, and simultaneously under the respective telescopic actions of the lower elastic mechanism 5, the upper elastic mechanism 6 and the plurality of hoisting telescopic rods 42, the outer wall of the drilling riser is kept fixedly connected with the lower stabilizing ring 2 and the upper stabilizing ring 3 respectively, and the connecting flange of the drilling riser is also kept fixedly connected with the sliding balance unit 72 so as to balance the up and down sliding between the drilling riser and the drilling platform in the vertical direction; therefore, the relative sliding of the drilling riser in all directions between the drilling riser and the drilling platform can be absorbed while the drilling riser is effectively fixed, the drilling riser can be ensured to be connected with the drilling platform, and higher stability of the drilling riser is provided.
Further, referring to fig. 1 to 5 and 8 to 9, the diameter of the penetrating hole 71 is larger than that of the drilling riser, the sliding balance unit 72 includes two fixed rings 721 and two movable connection plates 722, the two fixed rings 721 are respectively disposed on the upper and lower sides of the two movable connection plates 722, and the two fixed rings 721 are coaxially fixed with the tray 7; two movable connection plates 722 can be fixed with the connection flange of the drilling riser respectively, and the two movable connection plates 722 are positioned on the upper side and the lower side of the connection flange of the drilling riser respectively.
A plurality of embedded grooves 7211 are formed in the side surface, close to the movable connecting disc 722, of the fixed ring 721, one rolling ball 7212 is embedded in each embedded groove 7211, and each rolling ball 7212 can freely roll in the corresponding embedded groove 7211; the movable connection plate 722 is capable of contacting with each rolling ball 7212 embedded in the surface of the corresponding fixed ring 721 on the surface close to the corresponding fixed ring 721, and the movable connection plate 722 can slide under the restriction of the fixed ring 721 by rolling of each rolling ball 7212.
The inner diameter of the two fixing rings 721 is equal to the diameter of the penetration hole 71, and the inner diameters of the two fixing rings 721 are both larger than the outer diameter of the connection flange of the drilling riser; the inner diameter of both movable connection plates 722 is the same as the outer diameter of the drilling riser, and the outer diameter of both movable connection plates 722 is larger than the inner diameter of the stationary ring 721, and the outer diameter of both movable connection plates 722 is smaller than the outer diameter of the stationary ring 721.
When the drilling riser mounting device is used, the connecting flange of the drilling riser can be stably fixed between the two movable connecting plates 722, the two movable connecting plates 722 are respectively contacted with the rolling balls 7212 embedded in the embedded grooves 7211 on the surfaces of the corresponding fixed rings 721, friction between the two movable connecting plates 722 and the corresponding fixed rings 721 is converted from sliding friction to rolling friction of the rolling balls 7212, friction loss between the two movable connecting plates 722 and the corresponding fixed rings 721 can be effectively reduced, the service lives of the two movable connecting plates 722 and the two fixed rings 721 can be remarkably prolonged, and accordingly the service life of the whole marine engineering drilling riser mounting device is prolonged.
Further, referring to fig. 8-9, a driven gear ring 723 is fixedly disposed on one side of the two fixing rings 721, which are close to each other, a rotary driving motor 73 is disposed inside the tray 7, an output end of the rotary driving motor 73 is provided with an oblique output gear 731, and the oblique output gear 731 is respectively meshed with the two driven gear rings 723; the rotation driving motor 73 can drive the two driven ring gears 723 to rotate the two fixed rings 721 in opposite directions through the oblique output gears 731, respectively.
In use, the rotary driving motor 73 can continuously output power through the oblique output gear 731, the oblique output gear 731 can simultaneously and respectively drive the two driven gear rings 723 and the two fixed rings 721 fixed with the two driven gear rings 723 to rotate in opposite directions, so that dislocation between the two movable connecting discs 722 and the corresponding fixed rings 721 can be continuously generated, in actual use, abrasion between the two movable connecting discs 722 and the corresponding fixed rings 721 is concentrated at a certain position, and abrasion can be evenly generated on the surfaces of the two movable connecting discs 722 and the two fixed rings 721 (each rolling ball 7212 arranged on the surfaces of the two fixed rings 721) to improve the service lives of the two movable connecting discs 722 and the two fixed rings 721 and prolong the service life of the whole marine engineering drilling riser installation device.
Further, referring to fig. 1-5 and 7, the fixing disc 41 includes a plurality of sub-fixing discs 412, two adjacent sub-fixing discs 412 are connected to each other by a plurality of arc-shaped connecting rods 413, each arc-shaped connecting rod 413 includes an outer sleeve 4131, an inner sleeve 4132 and an extension spring 4133, the outer sleeve 4131 and the inner sleeve 4132 are arc-shaped, and the outer sleeve 4131 is nested outside the inner sleeve 4132; the two ends of the extension spring 4133 are respectively fixed with one end of the inner sleeve 4132 extending into the outer sleeve 4131 and the inner wall of the outer sleeve 4131, and the elastic force of the extension spring 4133 can drive the inner sleeve 4132 to move towards the inner part of the outer sleeve 4131.
When the drilling riser passes through the through hole 411, each tension spring 4133 can provide elastic force to drive the two sub-fixing plates 412 at two ends of each tension spring 4133 to approach each other; each sub-holding pan 412 has a tendency to move toward the central axis of the drilling riser under the force of each extension spring 4133, providing pressure to temporarily hold the drilling riser to the outer wall of the drilling riser.
Therefore, when in use, the distance between the sub-fixing plates 412 of the fixing plate 41 is adjusted under the limitation of each arc-shaped connecting rod 413, so that the outer diameter of the drilling riser limited by the through hole 411 can be adjusted, the drilling riser can be adapted to drilling risers of various specifications, the offset between the drilling riser and the fixing plate 41 can be corrected and compensated through the extension springs 4133 in each arc-shaped connecting rod 413, and each sub-fixing plate 412 has a tendency to move towards the central axis of the drilling riser under the elastic action of each extension spring 4133, so as to provide pressure for the outer wall of the drilling riser, and effectively fix the drilling riser in the through hole 411 of the fixing plate 41.
Further, referring to fig. 1 to 6, the connecting portion 1 further includes a plurality of fixing members 13, and the bottom end of each rigid connecting member 11 is fixed between one fixing member 13; the fixing piece 13 comprises an upper fixing plate 131 and a lower fixing plate 132, a containing groove 1311 is formed in one side, close to the lower fixing plate 132, of the upper fixing plate 131, and a limiting clamping plate 1321 is formed in one side, close to the upper fixing plate 131, of the lower fixing plate 132; limiting clamp plate 1321 can slide into the inside of receiving groove 1311, and the interval between upper fixing plate 131 and lower fixing plate 132 can be adjusted by the depth of limiting clamp plate 1321 embedded in receiving groove 1311.
The depth of the limit clamping plate 1321 embedded into the accommodating groove 1311 can be adjusted according to the thickness of the drilling platform; the upper fixing plate 131, the lower fixing plate 132 and the drilling platform are provided with a plurality of through holes, and the upper fixing plate 131, the drilling platform and the lower fixing plate 132 can be temporarily fixed through the coaxial through holes by screws.
So that the distance between the upper fixing plate 131 and the lower fixing plate 132 can be adjusted by the action of the fixing member 13 through the depth of the limit clamping plate 1321 embedded in the storage groove 1311, so that the adjustment can be performed according to the thickness of the drilling platform, and the use of the connection part 1 and even the whole marine engineering drilling riser installation device is facilitated.
Further, referring to fig. 1-5, the lower stabilizer ring 2 and the upper stabilizer ring 3 can be fixed between the outer walls of the drilling riser respectively, and the lower elastic mechanism 5 and the upper elastic mechanism 6 each comprise a plurality of hydraulic telescopic rods; the hydraulic telescopic rods can be respectively and independently telescopic, and the included angle and the distance between the lower stabilizing ring 2 and the connecting part 1 can be adjusted by the telescopic action of the hydraulic telescopic rods of the lower elastic mechanism 5; the included angle and the distance between the upper stabilizing ring 3 and the connecting part 1 can be adjusted by the expansion and contraction of each hydraulic expansion rod of the upper elastic mechanism 6.
Therefore, in the use process, through the action of the hydraulic telescopic rods, the tiny disturbance between the drilling riser and the drilling platform can be reduced through the hydraulic pressure in each hydraulic telescopic rod, and the included angle and the distance between the lower stabilizing ring 2 and the connecting part 1 can be adjusted through the expansion and contraction of each hydraulic telescopic rod of the lower elastic mechanism 5; the included angle and the distance between the upper stabilizing ring 3 and the connecting part 1 can be adjusted through the expansion and contraction of each hydraulic expansion rod of the upper elastic mechanism 6, so that the connection between the drilling riser and the drilling platform can be ensured, and the higher stability of the drilling riser is provided.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a marine engineering drilling riser installation device, includes connecting portion (1), connecting portion (1) below is provided with down stabilizing ring (2), connecting portion (1) top is provided with and stabilizes ring (3), connecting portion (1) top still is provided with fixed part (4), its characterized in that:
the fixing part (4) is movably connected with the connecting part (1) through an elastic connecting rod (12), the connecting part (1) can be fixedly connected with the drilling platform, the lower stabilizing ring (2) is movably connected with the connecting part (1) through a lower elastic mechanism (5), and the upper stabilizing ring (3) is movably connected with the connecting part (1) through an upper elastic mechanism (6);
the drilling vertical pipe drilling device comprises a connecting part (1), wherein a tray (7) is arranged in the center of the connecting part (1), the connecting part (1) is fixedly connected with the tray (7) through a plurality of rigid connecting pieces (11), a penetrating hole (71) is formed in the center of the tray (7), a sliding balance unit (72) is arranged in the tray (7), a connecting flange of the drilling vertical pipe can be fixed on the sliding balance unit (72), the sliding balance unit (72) can freely slide in the tray (7) within the limited range of the tray (7), and the drilling vertical pipe can slide under the common limitation of the tray (7) and the penetrating hole (71) through the sliding balance unit (72);
the fixing part (4) comprises a fixing disc (41), the fixing disc (41) is fixedly connected with the connecting part (1) through an elastic connecting rod (12), a plurality of hoisting telescopic rods (42) are arranged at the bottom end of the fixing disc (41), the fixing disc (41) is slidably connected with the tray (7) through the hoisting telescopic rods (42), a through hole (411) is formed in the center of the fixing disc (41), the aperture of the through hole (411) can be adjusted along with the aperture of a drilling riser, and the drilling riser is kept in the center of the fixing disc (41) when the drilling riser slides up and down in the through hole (411);
the diameter of the penetrating hole (71) is larger than that of the drilling riser, the sliding balance unit (72) comprises two fixed rings (721) and two movable connecting discs (722), the two fixed rings (721) are respectively arranged on the upper side and the lower side of the two movable connecting discs (722), and the two fixed rings (721) are coaxially fixed with the tray (7);
two movable connection discs (722) can be respectively fixed with the connecting flanges of the drilling riser, and the two movable connection discs (722) are respectively positioned on the upper side and the lower side of the connecting flanges of the drilling riser;
a plurality of embedded grooves (7211) are formed in the side surface, close to the movable connecting disc (722), of the fixed ring (721), each embedded groove (7211) is internally embedded with one rolling ball (7212), and each rolling ball (7212) can freely roll in the corresponding embedded groove (7211);
one surface of the movable connecting disc (722) close to the corresponding fixed ring (721) can be in contact with each rolling ball (7212) embedded on the surface of the corresponding fixed ring (721), and the movable connecting disc (722) can slide under the limit of the fixed ring (721) through the rolling of each rolling ball (7212);
driven gear rings (723) are fixedly arranged on one side surfaces of the two fixed rings (721) which are close to each other, a rotary driving motor (73) is further arranged inside the tray (7), an inclined output gear (731) is arranged at the output end of the rotary driving motor (73), and the inclined output gear (731) is respectively meshed with the two driven gear rings (723);
the rotary driving motor (73) can drive the two driven gear rings (723) to respectively drive the two fixed rings (721) to rotate in opposite directions through the inclined output gears (731);
the lower stabilizing ring (2) and the upper stabilizing ring (3) can be fixed with the outer wall of the drilling riser respectively, and the lower elastic mechanism (5) and the upper elastic mechanism (6) comprise a plurality of hydraulic telescopic rods;
the hydraulic telescopic rods can be respectively and independently telescopic, and the included angle and the distance between the lower stabilizing ring (2) and the connecting part (1) can be adjusted through the telescopic of the hydraulic telescopic rods of the lower elastic mechanism (5); the included angle and the distance between the upper stabilizing ring (3) and the connecting part (1) can be adjusted through the expansion and contraction of the hydraulic expansion rods of the upper elastic mechanism (6).
2. The marine engineering drilling riser installation of claim 1, wherein: the inner diameter of the two fixing rings (721) is equal to the diameter of the penetrating hole (71), and the inner diameters of the two fixing rings (721) are both larger than the outer diameter of the connecting flange of the drilling riser;
the inner diameter of both movable connection discs (722) is the same as the outer diameter of the drilling riser, and the outer diameter of both movable connection discs (722) is larger than the inner diameter of the fixed ring (721), and the outer diameter of both movable connection discs (722) is smaller than the outer diameter of the fixed ring (721).
3. The marine engineering drilling riser installation of claim 1, wherein: the fixing disc (41) comprises a plurality of sub-fixing discs (412), two adjacent sub-fixing discs (412) are connected with each other through a plurality of arc-shaped connecting rods (413), each arc-shaped connecting rod (413) comprises an outer sleeve (4131), an inner sleeve (4132) and an extension spring (4133), the outer sleeve (4131) and the inner sleeve (4132) are arc-shaped, and the outer sleeve (4131) is nested outside the inner sleeve (4132);
the two ends of the extension spring (4133) are respectively fixed with one end of the inner sleeve rod (4132) extending into the outer sleeve (4131) and the inner wall of the outer sleeve (4131), and the elastic force of the extension spring (4133) can drive the inner sleeve rod (4132) to move towards the inner part of the outer sleeve (4131).
4. A marine engineering drilling riser installation according to claim 3, wherein: when the drilling riser passes through the through hole (411), each extension spring (4133) can provide elastic force to drive two sub-fixing discs (412) at two ends of each extension spring (4133) to be close to each other;
under the elastic force of each extension spring (4133), each sub-fixing disc (412) has a tendency to move towards the central axis of the drilling riser, and provides pressure to the outer wall of the drilling riser to temporarily fix the drilling riser.
5. The marine engineering drilling riser installation of claim 1, wherein: the connecting part (1) further comprises a plurality of fixing pieces (13), and the bottom end of each rigid connecting piece (11) is fixed with one fixing piece (13) respectively;
the fixing piece (13) comprises an upper fixing plate (131) and a lower fixing plate (132), a containing groove (1311) is formed in one side, close to the lower fixing plate (132), of the upper fixing plate (131), and a limiting clamping plate (1321) is arranged in one side, close to the upper fixing plate (131), of the lower fixing plate (132);
the limiting clamping plate (1321) can slide into the storage groove (1311), and the distance between the upper fixing plate (131) and the lower fixing plate (132) can be adjusted by embedding the limiting clamping plate (1321) into the depth of the storage groove (1311).
6. The marine engineering drilling riser installation of claim 5, wherein: the depth of the limit clamping plate (1321) embedded into the accommodating groove (1311) can be adjusted according to the thickness of the drilling platform;
the upper fixing plate (131), the lower fixing plate (132) and the drilling platform are provided with a plurality of through holes, and the upper fixing plate (131), the drilling platform and the lower fixing plate (132) can be temporarily fixed through the coaxial through holes by screws.
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