Offshore platform foundation pillar icebreaking test device

Abstract

The invention discloses an offshore platform foundation pillar icebreaking test device which comprises a pool body, a swing assembly and an impact hammer, the pool body is used for storing water, floating ice floats on the water surface, and the swing assembly is installed on the pool body and provided with a connecting end capable of swinging in a reciprocating mode. The impact hammer comprises a hammer body, an adjusting part and an impact part, the hammer body is installed at the connecting end, the impact part comprises a plurality of impact plates, the impact plates are movably installed at one end of the hammer body, the adjusting part is installed on the hammer body, and the adjusting part is in transmission connection with the impact plates so as to adjust the relative positions of the impact plates. The connecting end swinging in a reciprocating mode is used for driving the impact hammer to swing, the impact part can simulate a foundation pillar of an offshore platform, the impact part of the impact hammer impacts floating ice, and then the scene that the floating ice impacts the foundation pillar of the offshore platform can be simulated. As the shape of the impact part is variable, offshore platform foundation pillars with different shapes can be simulated.

Description

Technical Field

[0001] The present invention relates to the field of offshore icebreaking, and in particular to an offshore platform base column icebreaking test device. Background Art

[0002] Offshore platforms are primarily structures used for drilling wells. Equipped with drilling, power, communications, navigation, and other equipment, as well as safety and lifesaving facilities for personnel, they are essential for offshore oil and gas exploration and development.

[0003] Existing offshore platforms, as described in patent application number CN201110308820.3, include a platform for placing structures and columns supporting the platform. However, some sea areas are prone to drifting ice (ice sheets) that move with ocean currents. These drifting ice sheets can collide with the offshore drilling platform's columns, posing a safety hazard and impacting the platform's normal operation. Columns of different shapes have varying impacts on ice impacts, and their shape is closely linked to their ability to withstand ice impacts.

[0004] Therefore, how to study the ice-breaking effect of columns with different shapes is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose an offshore platform column icebreaking test device to solve the technical problem of how to study the icebreaking effect of columns with different shapes in the prior art.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an offshore platform column icebreaking test device, which comprises: A pool body, which is used for storing water and has floating ice arranged on the water surface; a swing assembly, which is mounted on the tank body and has a reciprocating swinging connection end; and The impact hammer includes a hammer body, an adjustment part and an impact part. The hammer body is installed at the connecting end. The impact part includes a plurality of impact plates. The plurality of impact plates are movably installed at one end of the hammer body. The adjustment part is installed at the hammer body. The adjustment part is transmission-connected to each of the impact plates to adjust the relative positions of each impact plate.

[0007] In some embodiments, the adjustment portion has a telescopic end protruding from the hammer body, and the length of the telescopic end protruding from the hammer body is adjustable. One end of the impact plate is hinged to the telescopic end, and the other end of the impact plate is movably connected to the hammer body.

[0008] In some embodiments, a mounting groove is provided at one end of the hammer body, the adjustment portion includes a first hydraulic cylinder, the cylinder body of the first hydraulic cylinder is embedded in the mounting groove, and the telescopic end is located at the piston rod of the first hydraulic cylinder.

[0009] In some embodiments, the impact part further includes a plurality of connecting rods, and two ends of the connecting rods are hinged to the hammer body and the impact plate respectively.

[0010] In some embodiments, the hammer body has a accommodating cavity, and the hammer body is provided with a perfusion hole connected to the accommodating cavity, and the hammer body also has a perfusion valve embedded in the perfusion hole, and the perfusion valve is used to control the opening and closing of the perfusion hole.

[0011] In some embodiments, the hammer body is provided with an air vent connected to the accommodating cavity, and the hammer body further has an air valve embedded in the air vent, and the air valve is used to control the opening and closing of the air vent.

[0012] In some embodiments, the swing assembly includes a support frame, a rocker arm and a first driving member. The support frame is mounted on the pool body. One end of the rocker arm is rotatably mounted on the support frame. The other end of the rocker arm has a connecting end. The first driving member is connected to the rocker arm to drive the rocker arm to rotate.

[0013] In some embodiments, the first driving member includes a transmission end, wherein the transmission end has a first state of contacting the rocking rod to drive the rocking rod to rotate, and a second state of being disengaged from the rocking rod to allow the rocking rod to swing freely.

[0014] In some embodiments, the rocker arm includes a connecting shaft, which is rotatably mounted on the support frame so that the rocker arm rotates relative to the support frame. The first driving member includes a motor, a driving roller, a slide and a transmission roller. The driving roller is rotatably mounted on the support frame. The motor transmission is connected to the driving roller to drive the driving roller to rotate. The transmission roller is rotatably mounted on the transmission roller. The transmission roller has the transmission end. The slide is slidably arranged on the support frame. The slide has a first position in which the transmission roller presses against the driving roller and the connecting shaft, and a second position in which the slide is disengaged from the driving roller and / or the connecting shaft. The transmission end is switched between the first state and the second state by sliding the slide between the first position and the second position.

[0015] In some embodiments, the rocker arm includes a first rod body, a second rod body and a second driving member, one end of the first rod body is rotatably mounted on the support frame, one end of the second rod body is slidably set on the first rod body, and the other end of the second rod body has the connecting end, and the second driving member is transmission-connected to the second rod body to drive the second rod body to slide relative to the first rod body.

[0016] During use, the offshore platform column icebreaking test device provided by the present invention first needs to utilize a pool to store water and allow ice floes to float on the water surface. The reciprocating connecting end is used to drive the impact hammer to swing, and the impact part can simulate the offshore platform column. The impact part of the impact hammer hits the ice floe, thereby simulating the scene of the ice floe hitting the offshore platform column. The adjustment part is connected to each impact plate to adjust the relative position of each impact plate. The shape of the impact part is thereby changed. Since the shape of the impact part is variable, offshore platform columns of different shapes can be simulated. This is to facilitate the exploration of the icebreaking effect of offshore platform columns of different shapes, and provide a reference for the appearance design of offshore platform columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1. It is a structural schematic diagram of an offshore platform column icebreaking test device provided by an embodiment of the present invention; Figure 2 is a schematic structural diagram of a first driving member provided in an embodiment of the present invention; Figure 3 is a schematic structural diagram of the first driving member provided by an embodiment of the present invention from another perspective; Figure 4 Schematic diagram of the internal structure of the swing arm provided by an embodiment of the present invention; Explanation of the accompanying drawings: pool body 100, swing assembly 200, support frame 210, rocker arm 220, connecting shaft 221, first rod body 222, guide hole 2221, second driving member 223, second rod body 224, second hydraulic cylinder 2231, first driving member 230, motor 231, driving roller 232, slide 233, transmission roller 234, impact hammer 300, impact part 310, impact plate 311, connecting rod 312, hammer body 320, mounting groove 321, accommodating chamber 322, filling hole 323, filling valve 324, air vent 325, air valve 326, adjustment part 330, first hydraulic cylinder 331. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to solve the technical problem of how to study the icebreaking effect of base columns of different shapes, the present invention provides an offshore platform base column icebreaking test device, which has a shape-variable impact part 310, and then simulates offshore platform base columns of different shapes through the impact part 310, thereby exploring the icebreaking effect of offshore platform base columns of different shapes.

[0020] It should be noted that the offshore platform base column icebreaking test device of the present invention is used for offshore platform base column icebreaking test. For the convenience of explanation, in the present invention, the offshore platform base column icebreaking test device is used for offshore platform base column icebreaking test as an example for explanation.

[0021] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of an offshore platform column icebreaking test device according to one embodiment of the present invention. The offshore platform column icebreaking test device includes a pool 100, a swing assembly 200, and a striker 300. Pool 100 is used to store water with floating ice floating on the water surface. Swing assembly 200 is mounted on pool 100 and has a connecting end that swings back and forth. The striker 300 includes a hammer body 320, an adjustment portion 330, and a striker 310. Hammer body 320 is mounted on the connecting end. The striker 310 includes a plurality of strike plates 311, which are movably mounted on one end of hammer body 320. An adjustment portion 330 is mounted on hammer body 320 and is transmission-connected to each strike plate 311 to adjust the relative positions of each strike plate 311.

[0022] In this embodiment, water is first stored in the pool 100, and ice floes are allowed to float on the water surface. The swing assembly 200 then drives the hammer 300 to swing, causing the striking portion 310 to simulate the foundation column of an offshore platform. The striking portion 310 of the hammer 300 strikes the ice floe, thereby simulating the impact of ice floes on the foundation column of the offshore platform. Because the striking portion 310 is variable in shape, it can simulate foundation columns of various shapes, facilitating the study of their icebreaking effectiveness and providing a reference for the design of the foundation column's exterior.

[0023] It should be noted that the impact part 310 is equivalent to the part where the offshore platform column collides with the ice floe. By making the impact part 310 hit the ice floe on the water surface, the scene of the ice floe hitting the offshore platform column can be simulated. By using impact parts 310 of different shapes, offshore platform columns of different shapes can be simulated. As long as the shape of the impact part 310 can be adjusted, the implementation method is feasible. For example, the impact part 310 can be made detachable, and impact parts 310 of different shapes can be installed according to the test requirements. In other words, the shape of the impact part 310 can be changed by replacing it. For example, by adjusting the relative positions of the various impact plates 311, a wedge-shaped structure, a triangular structure or a plane structure can be spliced together.

[0024] In some embodiments, the adjustment portion 330 includes a telescopic end that protrudes from the hammer body 320, and the length of the telescopic end protruding from the hammer body 320 is adjustable. The impact portion 310 includes a plurality of impact plates 311, one end of which is hinged to the telescopic end and the other end of which is movably connected to the hammer body 320. Because the length of the telescopic end protruding from the hammer body 320 is adjustable, adjusting the length of the telescopic end protruding from the hammer body 320 drives the impact plates 311 to rotate, thereby changing the inclination angle of the impact plates 311 and thus changing the shape of the impact portion 310.

[0025] In some embodiments, a mounting slot 321 is defined at one end of the hammer body 320. The adjustment unit 330 includes a first hydraulic cylinder 331. The cylinder body of the first hydraulic cylinder 331 is embedded in the mounting slot 321, and the telescopic end is located at the piston rod of the first hydraulic cylinder 331. The piston rod slides relative to the cylinder body of the first hydraulic cylinder 331, thereby driving the impact plate 311 to flip.

[0026] It is understandable that the first hydraulic cylinder 331 is only one embodiment of the adjustment part 330 , and the electric push rod and the screw slider structure can also achieve similar effects as the first hydraulic cylinder 331 .

[0027] Any embodiment is feasible as long as the striking plate 311 can be flexibly connected to the hammer 320. In some embodiments, the striking portion 310 further includes a plurality of connecting rods 312, the ends of which are hingedly connected to the hammer 320 and the striking plate 311. Because the striking plate 311 is connected to the hammer 320 via the connecting rods 312, when the telescopic end drives the striking plate 311 to rotate, the connecting rods 312 do not hinder the small rotation and sliding of the striking plate 311.

[0028] It should be noted that the above embodiment is not the only way to flexibly connect the strike plate 311 to the hammer 320. For example, in some other embodiments, the striker 310 further includes a universal joint, one end of which is connected to the strike plate 311 and the other end of which is slidably mounted on the hammer 320. The strike plate 311 is connected to the hammer 320 via the universal joint. When the telescopic end drives the strike plate 311 to rotate, the universal joint does not hinder the strike plate 311's small rotation and sliding.

[0029] In some embodiments, the hammer body 320 has a chamber 322 within it, and a filling hole 323 communicating with the chamber 322 is formed in the hammer body 320. The hammer body 320 also has a filling valve 324 embedded in the filling hole 323. The filling valve 324 is used to control the opening and closing of the filling hole 323. When the hammer body 320 is submerged in water, the filling valve 324 can be opened to allow water to enter the chamber 322 through the filling hole 323. When the hammer body 320 is out of the water, the filling valve 324 can be closed to prevent the water in the chamber 322 from escaping. By adjusting the amount of water stored in the chamber 322, the total mass of the hammer body 320 can be changed, and ultimately the force with which the impact portion 310 strikes the ice floe can be adjusted.

[0030] In some embodiments, the hammer body 320 is provided with an air vent 325 communicating with the accommodating chamber 322, and the hammer body 320 further includes an air valve 326 embedded in the air vent 325. The air valve 326 is used to control the opening and closing of the air vent 325. The air vent 325 is used to balance the air pressure within the accommodating chamber 322. During the process of filling the accommodating chamber 322 with water, the air valve 326 can be opened to allow air within the accommodating chamber 322 to escape, making it easier for water to enter the accommodating chamber 322. When the water filling operation is completed, the air valve 326 can be closed to prevent the water within the accommodating chamber 322 from escaping the accommodating chamber 322 through the air vent 325.

[0031] In some embodiments, the first driving member 230 includes a transmission end, which has a first state in which it contacts the pendulum rod 220 to drive the pendulum rod 220 to rotate, and a second state in which it disengages from the pendulum rod 220 to allow the pendulum rod 220 to swing freely. In this embodiment, the transmission end can be first adjusted to the first state, whereupon the first driving member 230 drives the pendulum rod 220 to tilt, thereby raising the height of the striker 300. Subsequently, the transmission end is adjusted to the second state, causing the striker 300 to fall under the action of gravity. The gravitational potential energy of the striker 300 is converted into kinetic energy, ultimately causing the striker 300 to strike the ice floe.

[0032] It is understood that the greater the overall mass of the hammer 300, the greater the impact force exerted on the ice floe. Furthermore, a force sensor should be installed on the hammer 300 to monitor the impact force exerted by the hammer 300 on the ice floe in real time, thereby determining the ice breaking effect under different impact forces. Any force sensor capable of monitoring the impact force exerted by the hammer 300 on the ice floe is suitable, such as strain tube force sensors, strain beam force sensors, and diaphragm force sensors.

[0033] In some embodiments, the swing assembly 200 includes a support frame 210, a swing arm 220, and a first driving member 230. The support frame 210 is mounted on the tank body 100. One end of the swing arm 220 is rotatably mounted on the support frame 210. The other end of the swing arm 220 has a connecting end. The first driving member 230 is connected to the swing arm 220 to drive the swing arm 220 to rotate. The support frame 210 is mounted on the tank body 100. The first driving member 230 drives the swing arm 220 to rotate relative to the support frame 210, and the rotating swing arm 220 can then drive the impact hammer 300 to swing.

[0034] It is understandable that in the following embodiments, the height of the support frame 210 is adjustable, so that the height of the pendulum 220 and the impact hammer 300 can be adjusted as a whole through the support frame 210, so that the height of the pendulum 220 and the impact hammer 300 can adapt to water surfaces and floating ice at different heights, thereby improving the applicability of the offshore platform base column icebreaking test device.

[0035] On the basis of the above embodiments, in some embodiments, the rocker arm 220 includes a connecting shaft 221, which is rotatably mounted on the support frame 210 so that the rocker arm 220 rotates relative to the support frame 210, and the first driving member 230 includes a motor 231, a driving roller 232, a slide 233 and a transmission roller 234, the driving roller 232 is rotatably mounted on the support frame 210, the motor 231 drives the driving roller 232 to drive the driving roller 232 to rotate, the transmission roller 234 is rotatably mounted on the transmission roller 234, the transmission roller 234 has a transmission end, the slide 233 is slidably arranged on the support frame 210, the slide 233 has a first position in which the transmission roller 234 presses against the driving roller 232 and the connecting shaft 221, and a second position in which the transmission roller 234 is disengaged from the driving roller 232 or / and the connecting shaft 221, and the transmission end is switched between the first state and the second state by sliding the slide 233 between the first position and the second position.

[0036] It should be noted that when the transmission roller 234 presses against the driving roller 232 and the connecting shaft 221, a transmission relationship can be established between the driving roller 232 and the connecting shaft 221 through the transmission roller 234, so that the motor 231 can drive the rocker arm 220 to rotate. When the transmission roller 234 is separated from any one of the driving roller 232 and the connecting shaft 221, the transmission relationship between the driving roller 232 and the connecting shaft 221 is lost, so that the rocker arm 220 can drive the impact hammer 300 to swing freely.

[0037] In some embodiments, the rocker arm 220 includes a first rod body 222, a second rod body 224 and a second driving member 223. One end of the first rod body 222 is rotatably mounted on the support frame 210, one end of the second rod body 224 is slidably disposed on the first rod body 222, and the other end of the second rod body 224 has a connecting end. The second driving member 223 is transmission-connected to the second rod body 224 to drive the second rod body 224 to slide relative to the first rod body 222.

[0038] In the above embodiment, the second driving member 223 drives the second rod body 224 to slide relative to the first rod body 222, thereby changing the total length of the pendulum rod 220, and then adjusting the moving trajectory of the impact hammer 300 by adjusting the total length of the pendulum rod 220, thereby simulating the impact scenes of different moving trajectories of the impact hammer 300.

[0039] Based on the above embodiments, in some embodiments, the first rod 222 has a guide hole 2221 defined along its axial direction, the second rod 224 movably extends through the guide hole 2221, and the second driving member 223 includes a second hydraulic cylinder 2231, which is internally disposed within the guide hole 2221. The cylinder body and piston rod of the second hydraulic cylinder 2231 are respectively connected to the first rod 222 and the second rod 224. Guided by the inner wall of the guide hole 2221, the second rod 224 can slide relative to the first rod 222. Since the second hydraulic cylinder 2231 is concealed within the guide hole 2221, the guide hole 2221 can also be used to provide a sealed protection for the second hydraulic cylinder 2231.

[0040] In order to better understand the present invention, the following Figures 1 to 3 The technical solution of the present invention is described in detail: During use, the offshore platform column icebreaking test device provided by the present invention first requires the use of a pool 100 to store water and allow ice floes to float on the water surface. The support frame 210 is mounted on the pool 100. The transmission end can be first adjusted to a first position, and the driving member 230 drives the swing arm 220 to rotate, thereby raising the height of the striker 300. The transmission end is then adjusted to a second position, causing the striker 300 to fall under the action of gravity. The gravitational potential energy of the striker 300 is converted into kinetic energy, ultimately causing the striker 300 to strike the ice floe, thereby simulating the scenario of an ice floe striking an offshore platform column. Because the length of the telescopic end protruding from the hammer body 320 is adjustable, adjusting the length of the telescopic end protruding from the hammer body 320 rotates the striker plate 311, thereby changing the inclination angle of the striker plate 311 and, in turn, altering the shape of the striker portion 310. This allows simulation of offshore platform columns of varying shapes, facilitating the study of their icebreaking effectiveness and providing a reference for the design of offshore platform column shapes. Furthermore, when the hammer 320 is submerged in water, the filling valve 324 can be opened to allow water to flow into the accommodating chamber 322 through the filling hole 323. When the hammer 320 is out of the water, the filling valve 324 can be closed to prevent the water in the accommodating chamber 322 from escaping. By adjusting the amount of water stored in the accommodating chamber 322, the total mass of the hammer 320 can be varied, and ultimately the force with which the striking portion 310 strikes the ice floe can be adjusted.

[0041] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0042] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0043] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An offshore platform column icebreaking test device, characterized in that: include: A pool body, which is used for storing water and has floating ice arranged on the water surface; A swing assembly, which is mounted on the tank body and has a reciprocating swinging connection end; as well as The impact hammer includes a hammer body, an adjustment part and an impact part. The hammer body is installed at the connecting end. The impact part includes a plurality of impact plates. The plurality of impact plates are movably installed at one end of the hammer body. The adjustment part is installed at the hammer body. The adjustment part is transmission-connected to each of the impact plates to adjust the relative positions of each impact plate.

2. The offshore platform column icebreaking test device according to claim 1 is characterized in that: The adjustment portion has a telescopic end protruding from the hammer body, and the length of the telescopic end protruding from the hammer body is adjustable. One end of the impact plate is hinged to the telescopic end, and the other end of the impact plate is movably connected to the hammer body.

3. The offshore platform column icebreaking test device according to claim 2, characterized in that: One end of the hammer body is provided with a mounting groove, the adjustment part comprises a first hydraulic cylinder, the cylinder body of the first hydraulic cylinder is embedded in the mounting groove, and the telescopic end is located at the piston rod of the first hydraulic cylinder.

4. The offshore platform column icebreaking test device according to claim 2, characterized in that: The impact part further comprises a plurality of connecting rods, both ends of which are hingedly connected to the hammer body and the impact plate respectively.

5. The offshore platform column icebreaking test device according to claim 2, characterized in that: The hammer body has an accommodating cavity therein, and a filling hole communicating with the accommodating cavity is opened in the hammer body. The hammer body also has a filling valve embedded in the filling hole, and the filling valve is used to control the opening and closing of the filling hole.

6. The offshore platform column icebreaking test device according to claim 5, characterized in that: The hammer body is provided with an air vent connected to the accommodating cavity, and the hammer body is further provided with an air valve embedded in the air vent, and the air valve is used to control the opening and closing of the air vent.

7. The offshore platform column icebreaking test device according to claim 1, characterized in that: The swing assembly includes a support frame, a rocker arm and a first driving member. The support frame is mounted on the pool body. One end of the rocker arm is rotatably mounted on the support frame. The other end of the rocker arm has a connecting end. The first driving member is connected to the rocker arm to drive the rocker arm to rotate.

8. The offshore platform column icebreaking test device according to claim 7, characterized in that: The first driving member includes a transmission end, wherein the transmission end has a first state of contacting the rocking rod to drive the rocking rod to rotate, and a second state of being separated from the rocking rod to allow the rocking rod to swing freely.

9. The offshore platform column icebreaking test device according to claim 8, characterized in that: The rocker arm includes a connecting shaft, which is rotatably mounted on the support frame so that the rocker arm rotates relative to the support frame. The first driving member includes a motor, a driving roller, a slide and a transmission roller. The driving roller is rotatably mounted on the support frame. The motor is connected to the driving roller to drive the driving roller to rotate. The transmission roller is rotatably mounted on the transmission roller. The transmission roller has a transmission end. The slide is slidably arranged on the support frame. The slide has a first position in which the transmission roller presses against the driving roller and the connecting shaft, and a second position in which the slide is disengaged from the driving roller and / or the connecting shaft. The transmission end is switched between the first state and the second state by sliding the slide between the first position and the second position.

10. The offshore platform column icebreaking test device according to claim 1, characterized in that: The rocker arm includes a first rod body, a second rod body and a second driving member. One end of the first rod body is rotatably mounted on the support frame. One end of the second rod body is slidably disposed on the first rod body. The other end of the second rod body has the connecting end. The second driving member is transmission-connected to the second rod body to drive the second rod body to slide relative to the first rod body.

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