CN210066692U - Support spud leg and offshore self-installation platform - Google Patents
Support spud leg and offshore self-installation platform Download PDFInfo
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- CN210066692U CN210066692U CN201920376274.9U CN201920376274U CN210066692U CN 210066692 U CN210066692 U CN 210066692U CN 201920376274 U CN201920376274 U CN 201920376274U CN 210066692 U CN210066692 U CN 210066692U
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Abstract
The utility model relates to the technical field of ocean engineering, and discloses a support pile leg and an offshore self-installation platform, wherein the support spud leg comprises at least two spud legs and a connecting component, a group of the connecting components is arranged on two adjacent spud legs, the connecting assembly comprises at least one horizontal rod and at least one inclined strut, two ends of each horizontal rod are connected with two adjacent pile legs, two ends of each inclined strut are connected with two adjacent pile legs, at least one triangular connecting structure is formed between each group of connecting assembly and two adjacent pile legs, the support pile leg has the characteristics of stable and firm triangular structure, firmness and pressure resistance, and prevents adjacent two pile legs from deforming, excessively displacing and excessively stressing the structure, so that the offshore self-installation platform can stably stand on the sea.
Description
Technical Field
The utility model relates to an ocean engineering technology field especially relates to a support spud leg and marine from mounting platform.
Background
With the lapse of oil exploitation time, large offshore oil fields with abundant yield and storage capacity are gradually reduced, and a lot of marginal oil fields are discovered in offshore sea areas such as Bohai sea, south China sea, east China sea and the like after offshore oil exploration for nearly 30 years, and the marginal oil and gas fields have limited construction and storage capacity and complex stratum structures or are located in remote areas. If a conventional development technology is used, a new production platform is built, and submarine pipelines are laid, one-time investment is large, the return period is long, economic benefits are poor, and offshore marginal oil fields often lose development values due to overhigh development cost. Therefore, development and production equipment for marginal fields needs to be developed. The offshore self-installation platform can reduce offshore installation cost, can be moved for reuse, is effectively suitable for the characteristic of short service life of a marginal oil field, and is effective offshore equipment for developing the marginal oil field and building an offshore wind power energy transformation station.
The utility model discloses an inventor is realizing the utility model discloses an in-process discovers: the offshore self-installing platform needs to resist the action of severe sea conditions on the platform during offshore operation, and pile legs of the platform need to be supported to prevent deformation, overlarge displacement, overlarge structural stress and the like, but the self-installing platform in the prior art does not support the pile legs and does not have any reinforcement, the pile legs can swing greatly along with sea wave flow easily, and the structural stress is overlarge, particularly, the larger the operating water depth is, the larger the swinging displacement and stress are, and the overlarge swinging easily causes the unsafe and damage of the platform structure.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a support spud leg and marine from mounting platform makes marine from mounting platform does benefit to marine firmly.
The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:
a support leg comprising:
at least two legs;
the connecting assembly comprises at least one horizontal rod and at least one inclined supporting rod, and a group of connecting assemblies is arranged on two adjacent pile legs; wherein,
two ends of each horizontal rod are connected with two adjacent pile legs, and each horizontal rod and the horizontal surface are arranged at a first preset angle;
two ends of each inclined strut are connected with two adjacent pile legs, each inclined strut is arranged at a second preset angle with the horizontal plane, and the first preset angle is not equal to the second preset angle;
and at least one triangular connecting structure is formed between each group of connecting assembly and two adjacent pile legs.
In some embodiments, the diagonal brace comprises an upper bar and a lower bar;
the upper rod is sleeved on the lower rod, and the upper rod and the lower rod can slide mutually and are clamped at preset positions.
In some embodiments, the diagonal brace further comprises a fastener;
the upper rod is provided with a clamping hole, and the lower rod is provided with a fixing hole;
when the upper rod and the lower rod slide mutually, the clamping holes can be aligned with the fixing holes, and the fixing piece can penetrate through the clamping holes and the fixing holes which are aligned mutually, so that the upper rod and the lower rod are fixedly connected mutually.
In some embodiments, the diagonal brace further comprises a resilient member;
the fixing piece is clamped in the fixing hole, and the fixing piece does not pour out of the fixing hole;
the elastic piece is arranged in the fixing hole and used for elastically abutting against the fixing piece, so that the fixing piece can stretch out and draw back in the fixing hole;
when the fixing piece is accommodated in the fixing hole, the upper rod and the lower rod can slide mutually;
when the fixing member ejects the clamping hole and the fixing hole which are aligned with each other, the upper rod and the lower rod are fixedly connected with each other.
In some embodiments, the connection assembly further comprises a fastener;
the plurality of fasteners are respectively sleeved on two adjacent pile legs, and two ends of each horizontal rod and two ends of each inclined supporting rod are respectively connected with one corresponding fastener, so that each horizontal rod and each supporting rod are connected with two adjacent pile legs;
locking the corresponding fasteners to fix the corresponding horizontal rods and/or the corresponding diagonal braces to the two adjacent pile legs;
loosening the respective fasteners allows the corresponding horizontal bar and/or diagonal brace to slide up and down between two adjacent legs.
In some embodiments, both ends of each of the horizontal bars and both ends of each of the diagonal braces are respectively hinged to a corresponding one of the fasteners, so that each of the horizontal bars and each of the diagonal braces can respectively rotate around the hinge.
In another aspect, an offshore self-installing platform, comprising:
the support pile comprises a hull, an upper module, a wellhead frame and the support pile legs;
the upper module, the wellhead frame and the support pile legs are all installed on the ship body, the upper module is used for offshore operation, the wellhead frame is used for installing a wellhead production operation device, and the support pile legs are used for supporting the ship body.
In some embodiments, the upper module includes an oil and gas production process module for oil and gas field production process operations and/or a power transformation device for use as a transformation station for an offshore wind farm.
In some embodiments, the device further comprises a first lifting device, a second lifting device, a first locking device and a second locking device;
the first lifting device and the first locking device are connected to the wellhead frame, the first lifting device is used for driving the wellhead frame to move up and down relative to the ship body, and the first locking device is used for locking and fixing the wellhead frame relative to the ship body;
the second lifting device and the second locking device are connected to the supporting pile legs, the second lifting device is used for driving the supporting pile legs to move up and down relative to the ship body, and the second locking device is used for locking and fixing the supporting pile legs relative to the ship body.
In some embodiments, further comprising a first detection device and a second detection device;
the first detection device is arranged on the wellhead frame and used for detecting the descending or lifting distance of the wellhead frame relative to the ship body;
the second detection device is arranged on the support pile leg and used for detecting the descending or lifting distance of the support pile leg relative to the ship body.
Compared with the prior art, the support pile leg comprises at least two pile legs and connecting components, a group of connecting components is arranged on two adjacent pile legs, each connecting component comprises at least one horizontal rod and at least one inclined supporting rod, wherein two ends of each horizontal rod and each diagonal brace are connected with two adjacent pile legs, and the included angle between the horizontal rod and the horizontal plane is not equal to the included angle between the diagonal brace and the horizontal plane, at least one triangular connecting structure is formed between each group of connecting assemblies and two adjacent pile legs, and the characteristics of stability, firmness and pressure resistance of the triangular connecting structure are utilized, the connecting assembly can enable the support between the two adjacent pile legs to be more stable, and the deformation, the overlarge displacement and the overlarge structural stress of the two adjacent pile legs are prevented, so that the offshore self-installing platform can be stably erected on the sea.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural diagram of an offshore self-installation platform according to an embodiment of the present invention;
fig. 2 is an enlarged view of section a of fig. 1, i.e. a schematic structural view of a support leg of the offshore self-installing platform of fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "connected" to another element, it can be directly on the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", and the like as used herein refer to an orientation or positional relationship based on that shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, an embodiment of the present invention provides an offshore self-installing platform 100, where the offshore self-installing platform 100 includes a hull 10, a wellhead frame 20, support legs 30, and an upper module, where the wellhead frame 20, the support legs 30, and the upper module are all installed on the hull 10, and the wellhead frame 20 and the support legs 30 can move up and down relative to the hull 10 respectively. The wellhead housing 20 is used for installing wellhead production operation devices such as oil and gas field production processing devices, seawater extraction devices, etc., the support legs 30 are used for supporting the hull 10 so that the hull 10 is stably stood on the sea surface, and the upper module is used for offshore production operations.
The upper portion module sets up on the main deck of hull, the upper portion module includes oil gas production processing module and/or substation equipment, oil gas production processing module is used for oil gas field production processing operation, substation equipment is used for the transformer station as offshore wind farm. It will of course be appreciated that in some other embodiments the upper module may be equipped with different processing modules to achieve different offshore operating requirements, depending on the platform operating functional characteristics and processing requirements, for example the upper module may also include a crane for vertical lifting and horizontal handling of loads on the platform, etc.
The offshore self-installing platform 100 further comprises a lifting device installed on the hull 10, wherein the lifting device comprises a first lifting device and a second lifting device, the first lifting device and the second lifting device are respectively connected with the wellhead frame 20 and the support legs 30, the first lifting device is used for driving the wellhead frame 20 to move up and down relative to the hull 10, and the second lifting device is used for driving the support legs 30 to move up and down relative to the hull 10.
The first lifting device comprises a first driving unit and a first transmission mechanism.
The first transmission connects the first drive unit with the wellhead housing 20, and the first transmission is used for converting the output of the first drive unit into the movement of the wellhead housing 20. The first driving unit is mounted on the hull 10, an output end of the first driving unit is connected with one end of the first transmission mechanism, the other end of the first transmission mechanism is connected with the wellhead frame 20, the output end of the first driving unit outputs power, the first transmission mechanism converts the power into the up-and-down motion of the wellhead frame 20 relative to the hull 10, that is, the first transmission mechanism is used for transmitting the motion between the first driving unit and the wellhead frame 20. In this embodiment, the first driving unit includes a first motor, and the first transmission mechanism includes a first gear and a first rack. The output end of the first motor is connected with the first gear, the first rack is installed on the wellhead frame 20, and the first gear is meshed with the first rack. When the first motor drives the first gear to rotate in a first direction, the first gear drives the first rack to move upwards, and meanwhile, the wellhead frame 20 moves upwards relative to the hull 10 along with the first rack; when the first motor drives the first gear to rotate in the second direction, the first gear drives the first rack to move downwards, and meanwhile, the wellhead frame 20 moves downwards relative to the hull 10 along with the first rack. The first direction and the second direction are opposite. In the above way, the offshore lifting function of the offshore self-installing platform 100 is realized.
The second lifting device comprises a second driving unit and a second transmission mechanism.
The second transmission mechanism connects the second drive unit with the support leg 30 and is used to convert the output of the second drive unit into motion of the support leg 30. The second driving unit is installed on the hull 10, an output end of the second driving unit is connected with one end of the second transmission mechanism, the other end of the second transmission mechanism is connected with the support spud leg 30, the output end of the second driving unit outputs power, the second transmission mechanism converts the power into the up-and-down movement of the support spud leg 30 relative to the hull 10, that is, the second transmission mechanism is used for the transmission movement between the second driving unit and the support spud leg 30. In this embodiment, the second driving unit includes a second motor, and the second transmission mechanism includes a second gear and a second rack. The output of the second motor is connected to the second gear, the second rack is mounted to the support leg 30, and the second gear engages with the second rack. When the second motor drives the second gear to rotate in the first direction, the second gear drives the second rack to move upwards, and meanwhile, the support pile leg 30 moves upwards relative to the hull 10 along with the second rack; when the second motor drives the second gear to rotate in the second direction, the second gear drives the second rack to move downward, and meanwhile, the support pile leg 30 moves downward relative to the hull 10 along with the second rack. The first direction and the second direction are opposite. In the above manner, the lifting function of the support legs 30 with respect to the hull 10 is achieved.
It will be appreciated that in some other embodiments, the lifting device may also be a hydraulic latch lifting device, wherein the lift cylinder is operated with a certain hydraulic buffer function, and the latch is automatically locked after being lifted to a certain position. Of course, it is understood that the lifting device can also be designed to perform the lifting function in the form of a lifting arm, a hook, a winch, a hoist, etc.
The offshore self-installing platform 100 further comprises a locking device comprising a first locking device and a second locking device.
The first locking device is connected with the wellhead frame 20 and used for locking and fixing the wellhead frame 20 relative to the ship body 10. When the first lifting device extends the wellhead frame 20 into the sea to a target operation depth, the first locking device locks and fixes the hull 10 and the wellhead frame 20, so that the wellhead frame 20 is static relative to the hull 10 to ensure safe operation of the wellhead frame 20.
The second fastening device is connected to the support legs 30 and is used for locking and fixing the support legs 30 relative to the hull 10. When the second lifting device controls the support legs 30 to lift the hull 10 to the target working height, the second locking device locks and fixes the hull 10 and the support legs 30, so that the support legs 30 are stationary relative to the hull 10, and the marine self-installing platform 100 is ensured to be firmly erected on the sea surface.
It will be appreciated that the locking means may be a rack and pinion or locking pin, or other type of locking member.
The offshore self-installing platform 100 further comprises a detection device comprising a first detection device and a second detection device.
The first detection device is disposed on the wellhead rack 20 and is used for detecting the descending or lifting distance of the wellhead rack 20 relative to the hull 10. The second detecting device is disposed on the support leg 30, and is configured to detect a descending or lifting distance of the support leg 30 relative to the hull 10. The first detection device and the second detection device are both distance sensors. The movement of the wellhead frame 20 and the support legs 30 relative to the hull 10 can be accurately controlled by distance sensors provided on the wellhead frame 20 and the support legs 30, respectively.
The support legs 30 comprise legs 31 and connecting assemblies 32, the number of the legs 31 is at least two, and two adjacent legs 31 are provided with a set of connecting assemblies 32.
It is understood that the legs 31 may be cylindrical legs or truss leg structures, etc., and in this embodiment, the legs 31 are cylindrical legs.
Referring to fig. 2, the connecting assembly 32 includes at least one horizontal rod 321 and at least one diagonal rod 322. The horizontal rod 321 and the diagonal rod 322 may be cylindrical or square rod-shaped. Two ends of each horizontal rod 321 are connected to two adjacent pile legs 31, and each horizontal rod 321 and the horizontal plane are arranged at a first preset angle. Two ends of each inclined strut 322 are connected to two adjacent pile legs 31, and each inclined strut 322 is arranged at a second preset angle with the horizontal plane. In this embodiment, the first predetermined angle is O °, and the second predetermined angle is not equal to O °, that is, the first predetermined angle is not equal to the second predetermined angle, that is, each of the horizontal rods 321 is disposed parallel to a horizontal plane, and each of the diagonal braces 322 is disposed obliquely to the horizontal plane. Each set of connecting members 32 forms at least one triangular connecting structure with two adjacent legs 31, that is, at least one horizontal rod 321 and one diagonal brace 322 are provided to form a triangular connecting structure between two adjacent legs 31. In the triangular connecting structure, on one leg 31, one end of one diagonal brace 322 is close to one end of the corresponding horizontal rod 321, and on the other corresponding adjacent leg 31, the other end of the diagonal brace 322 is far away from the other end of the horizontal rod 321. Utilize triangle-shaped to have firm, firm and withstand voltage's characteristics, can make coupling assembling 32 is to adjacent two support between the spud leg 31 is more firm, prevents adjacent two spud leg 31 is out of shape, the displacement is too big and structural stress is too big, makes support spud leg 30 supports when the platform 100 is installed from at sea, in order to guarantee the platform 100 can stand on at sea firmly from the installation.
It is understood that in some other embodiments, the first preset angle and the second preset angle are not equal to O °, and the first preset angle and the second preset angle are not equal to each other, only that at least one triangular connection structure is formed between each group of the connection assemblies 32 and two adjacent legs 31.
The inclined supporting rods 322 each include an upper rod 3221, a lower rod 3222 and a fixing member 3223, the upper rod 3221 is sleeved on the lower rod 3222, and the upper rod 3221 and the lower rod 3222 can slide relative to each other and are clamped at a preset position by the fixing member 3223. The center lines of the upper rod 3221 and the lower rod 3222 are coincident, and the center lines of the upper rod 3221 and the lower rod 3222 are the center lines of the diagonal rod 322. In this embodiment, the upper rod 3221 is partially sleeved on the lower rod 3222, i.e., the lower rod 3222 is partially accommodated in the upper rod 3221.
The upper rod 3221 is provided with a clamping hole, and the lower rod 3222 is provided with a fixing hole. When the upper rod 3221 and the lower rod 3222 slide relative to each other, the clamping hole and the fixing hole may be aligned. After the clamping holes are aligned with the fixing holes, the fixing member 3223 may pass through the clamping holes and the fixing holes, which are aligned with each other, so that the upper rod 3221 and the lower rod 3222 are fixedly connected to each other.
Further, the inclined supporting rod 322 further includes an elastic member, the fixing member 3223 is clamped in the fixing hole, and the fixing member 3223 does not fall out of the fixing hole. The elastic member is mounted in the fixing hole, and the elastic member is used for elastically abutting against the fixing member 3223, so that the fixing member 3223 can stretch and contract in the fixing hole. Wherein, when the fixing member 3223 compresses the elastic member to be received in the fixing hole, the upper rod 3221 and the lower rod 3222 can slide relative to each other; when the elastic member is deformed again to push the fixing member 3223 out of the clamping hole and the fixing hole aligned with each other, the upper rod 3221 and the lower rod 3222 are fixedly connected to each other.
In this embodiment, the fixing element 3223 is a bolt, but the fixing element 3223 may also be other parts having the functions of connecting and limiting displacement, such as a bolt; the elastic member is a compression spring, but of course, the elastic member may be other parts having elastic potential energy, such as a leaf spring.
In this embodiment, the upper rod 3221 is provided with at least three clamping holes, and two adjacent clamping holes are disposed at equal intervals and penetrate through the upper rod 3221. The lower rod 3222 is provided with at least two fixing holes, and a distance between two adjacent clamping holes is equal to a distance between two fixing holes. The center lines of each clamping hole and each fixing hole are located on the same plane, and the planes are parallel to the center line of the corresponding inclined support rod 322. The upper rod 3221 and the lower rod 3222 can be slid to align the two adjacent clamping holes with the two fixing holes. The plane coincides with a center line of the corresponding diagonal brace 322, that is, the center lines of each of the engaging holes and each of the fixing holes are radially disposed on the upper rod 3221 and the lower rod 3222, respectively. The two fixing parts 3223 are respectively clamped in the two fixing holes, and each fixing hole is provided with one elastic part therein, and each elastic part elastically abuts against each fixing part 3223, so that two ends of each fixing part 3223 can stretch out and draw back corresponding to two ends of the corresponding fixing hole under the elastic potential energy of the elastic part. When two fixing members 3223 compress corresponding ones of the elastic members and are received in corresponding ones of the fixing holes, the upper rod 3221 and the lower rod 3222 can slide relative to each other, so that the two fixing holes can be aligned with two of the clamping holes of the upper rod 3221, and simultaneously, the overall length of the diagonal strut 322 is changed, thereby changing the supporting direction and the acting point of the diagonal strut 322 on the force between two adjacent spud legs 31. When the two elastic members are deformed again and eject the two fixing members 3223 out of the corresponding clamping holes and the fixing holes aligned with each other, the upper rod 3221 and the lower rod 3222 are clamped with each other, that is, the upper rod 3221 and the lower rod 3222 are fixedly connected to each other. With the above structure, the overall length of the diagonal brace 322 can be adjusted, and the supporting direction and the acting point between the diagonal brace 322 and two adjacent legs 31 can be changed according to actual needs, so as to meet different distances between two adjacent legs 31 and adapt to structural stress between two support legs 30.
It is understood that the horizontal rod 321 may be configured as a two-segment structure similar to the inclined strut 322 according to actual needs, and slidably sleeved with each other to change the overall length of the horizontal rod 321 by sliding, so as to meet the purpose of meeting different distances between two adjacent support legs 30.
It is understood that in some other embodiments, the number of the engaging holes and the fixing holes is not limited, and only that when the upper rod 3221 and the lower rod 3222 slide relative to each other, at least one of the engaging holes is aligned with one of the fixing holes, and the fixing member 3223 passes through the engaging holes and the fixing holes aligned with each other, so that the upper rod 3221 and the lower rod 3222 are fixedly connected to each other. Of course, according to actual needs, the upper rod 3221 and the lower rod 3222 may also be respectively provided with a plurality of the clamping holes and a plurality of the fixing holes, wherein one clamping hole corresponds to one fixing hole. By additionally arranging a plurality of holes for installing the fixing elements 3223, the plurality of fixing elements 3223 can share the axial load between the upper rod 3221 and the lower rod 3222 together, and the phenomenon that when the axial load between the upper rod 3221 and the lower rod 3222 is too large, the structure of the fixing elements 3223 is damaged, so that the fixing elements 3223 are excessively deformed and even cut off, and the service life of the diagonal brace 322 is ensured.
Further, the connecting assembly 32 further includes a fastener 3224, and the fastener 3224 is used for connecting the connecting assembly 32 and the leg 31.
A plurality of the fasteners 3224 are respectively sleeved on two adjacent pile legs 31, and two ends of each horizontal rod 321 and two ends of each diagonal brace 322 are respectively connected to a corresponding one of the fasteners 3224, so that each horizontal rod 321 and each diagonal brace 322 are connected between two adjacent pile legs 31.
Locking the corresponding fastener 3224 so that the corresponding horizontal rod 321 and/or the corresponding diagonal rod 322 are fixed to two adjacent pile legs 31; the corresponding fastener 3224 is loosened, so that the corresponding horizontal rod 321 and/or the corresponding diagonal brace 322 can slide up and down on the two adjacent pile legs 31.
Both ends of each horizontal rod 321 and both ends of each inclined supporting rod 322 are respectively hinged to a corresponding fastener 3224, so that each horizontal rod 321 and each inclined supporting rod 322 can respectively rotate around the hinged position.
In this embodiment, the fastening member 3224 is a two-piece structure, and includes a first semicircular portion 3225 and a second semicircular portion 3226, the first semicircular portion 3225 and the second semicircular portion 3226 are combined and sleeved on the spud leg 31, and a connection portion between the first semicircular portion 3225 and the second semicircular portion 3226 is fixed by a bolt. Tightening the bolt so that the fastener 3224 is fixed to the leg 31; the bolt is loosened so that the fastener 3224 can slide up and down the leg 31. The second semicircular portion 3226 is provided with a hinge portion, two ends of each horizontal rod 321 and two ends of each diagonal brace 322 are respectively hinged to the hinge portion of the corresponding fastener 3224, and one end of the horizontal rod 321 or the diagonal brace 322 can rotate around the corresponding hinge portion under the condition that the other end of the horizontal rod 321 or the diagonal brace 322 is not fixed. In this embodiment, the fastener 3224 is a pipe strap.
Compared with the prior art, the support leg 30 comprises at least two legs 31 and connecting components 32, two adjacent legs 31 are provided with a group of connecting components 32, the connecting assembly 32 comprises at least one horizontal bar 321 and at least one diagonal bar 322, wherein, the included angle between the horizontal rod 321 and the horizontal plane is not equal to the included angle between the inclined strut 322 and the horizontal plane, so that at least one triangular connecting structure is formed between each group of connecting assemblies 32 and two adjacent spud legs 31, and by utilizing the characteristics of stability, firmness and pressure resistance of the triangle, the connecting assembly 32 can stably support the two adjacent pile legs 31, and prevent the two adjacent pile legs 31 from deforming, displacing excessively and structurally stressing excessively, so that the self-installing platform 100 on the sea can be stably erected on the sea.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A support leg, comprising:
at least two legs;
the connecting assembly comprises at least one horizontal rod and at least one inclined supporting rod, and a group of connecting assemblies is arranged on two adjacent pile legs; wherein,
two ends of each horizontal rod are connected with two adjacent pile legs, and each horizontal rod and the horizontal surface are arranged at a first preset angle;
two ends of each inclined strut are connected with two adjacent pile legs, each inclined strut is arranged at a second preset angle with the horizontal plane, and the first preset angle is not equal to the second preset angle;
and at least one triangular connecting structure is formed between each group of connecting assembly and two adjacent pile legs.
2. A support leg according to claim 1, wherein the diagonal brace comprises an upper bar and a lower bar;
the upper rod is sleeved on the lower rod, and the upper rod and the lower rod can slide mutually and are clamped at preset positions.
3. A support leg according to claim 2, wherein the diagonal brace further comprises a fixing member;
the upper rod is provided with a clamping hole, and the lower rod is provided with a fixing hole;
when the upper rod and the lower rod slide mutually, the clamping holes can be aligned with the fixing holes, and the fixing piece can penetrate through the clamping holes and the fixing holes which are aligned mutually, so that the upper rod and the lower rod are fixedly connected mutually.
4. A support leg according to claim 3, wherein the diagonal brace further comprises a resilient member;
the fixing piece is clamped in the fixing hole, and the fixing piece does not pour out of the fixing hole;
the elastic piece is arranged in the fixing hole and used for elastically abutting against the fixing piece, so that the fixing piece can stretch out and draw back in the fixing hole;
when the fixing piece is accommodated in the fixing hole, the upper rod and the lower rod can slide mutually;
when the fixing member ejects the clamping hole and the fixing hole which are aligned with each other, the upper rod and the lower rod are fixedly connected with each other.
5. A support leg according to claim 1, wherein the connection assembly further comprises a fastener;
the plurality of fasteners are respectively sleeved on two adjacent pile legs, and two ends of each horizontal rod and two ends of each inclined supporting rod are respectively connected with one corresponding fastener, so that each horizontal rod and each inclined supporting rod are connected with two adjacent pile legs;
locking the corresponding fasteners to fix the corresponding horizontal rods and/or the corresponding diagonal braces to the two adjacent pile legs;
loosening the respective fasteners allows the corresponding horizontal bar and/or diagonal brace to slide up and down between two adjacent legs.
6. A support leg according to claim 5, wherein each horizontal bar is hinged at each end to a respective one of the fasteners and each diagonal bar is hinged at each end to a respective one of the fasteners such that each horizontal bar and each diagonal bar is pivotable about the respective hinge.
7. An offshore self-installing platform, comprising:
a hull, a topside module, a wellhead frame and a support leg according to any one of claims 1 to 6;
the upper module, the wellhead frame and the support pile legs are all installed on the ship body, the upper module is used for offshore operation, the wellhead frame is used for installing a wellhead production operation device, and the support pile legs are used for supporting the ship body.
8. The offshore self-installing platform of claim 7, wherein the upper module comprises an oil and gas production process module for oil and gas field production process operations and/or a power transformation device for functioning as a transformer station for an offshore wind farm.
9. The offshore self-installing platform of claim 7, further comprising a first lifting device, a second lifting device, a first locking device, and a second locking device;
the first lifting device and the first locking device are connected to the wellhead frame, the first lifting device is used for driving the wellhead frame to move up and down relative to the ship body, and the first locking device is used for locking and fixing the wellhead frame relative to the ship body;
the second lifting device and the second locking device are connected to the supporting pile legs, the second lifting device is used for driving the supporting pile legs to move up and down relative to the ship body, and the second locking device is used for locking and fixing the supporting pile legs relative to the ship body.
10. The offshore self-installing platform of claim 7, further comprising a first detection device and a second detection device;
the first detection device is arranged on the wellhead frame and used for detecting the descending or lifting distance of the wellhead frame relative to the ship body;
the second detection device is arranged on the support pile leg and used for detecting the descending or lifting distance of the support pile leg relative to the ship body.
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| CN201920376274.9U CN210066692U (en) | 2019-03-22 | 2019-03-22 | Support spud leg and offshore self-installation platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896454A (en) * | 2021-01-20 | 2021-06-04 | 上海交通大学 | Upper layer module jacking device suitable for detachable platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896454A (en) * | 2021-01-20 | 2021-06-04 | 上海交通大学 | Upper layer module jacking device suitable for detachable platform |
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