An offshore platform sand throwing device

Abstract

The present invention provides a sand throwing device for an offshore platform, which comprises a mobile trolley, a sand throwing rotating frame, a sandbag placement frame and a placement frame moving track. Among them, the mobile trolley is located on the platform main body of the offshore platform; the sandbag placement frame is slidably arranged on the sand throwing rotating frame through the placement frame moving track; the sand throwing rotating frame is hinged to the mobile trolley, and the sandbag placement frame throws sand when the sand throwing rotating frame rotates to the bottom of the platform main body. The present invention has the advantages of convenient sand throwing, high safety factor and low cost, etc.

Description

Technical Field

[0001] The present invention relates to the field of ocean engineering, and particularly to a sand throwing device for an ocean platform. Background Art

[0002] During offshore operations, the legs and pile shoes of an ocean platform are inserted into the mud and preloaded to make the bearing capacity of the foundation meet the platform operation conditions. Due to the changeable offshore conditions, when encountering harsh environments, the wave and current forces at the seabed will continuously scour the seabed. When the soil near the platform legs and pile shoes is scoured to a certain extent, the bearing capacity of the ocean platform foundation will decrease, and there is a risk of subsidence of the ocean platform legs, which is likely to cause safety accidents. To avoid the above situation, it is often necessary to carry out seabed sand throwing operations near each leg of the ocean platform. The existing sand throwing operation methods usually use special sand throwing vessels for sand throwing. The sand throwing vessels need to travel back and forth between the ocean platform and the dock, with high sand throwing costs, long sand throwing cycles, affecting the construction period, and there are certain safety hazards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sand throwing device for an ocean platform that is convenient for sand throwing, has a high safety factor, and low costs.

[0004] To solve the above technical problem, the technical solution proposed by the present invention is as follows:

[0005] A sand throwing device for an ocean platform includes a moving trolley, a sand throwing rotating frame, a sandbag placing frame, and a placing frame moving track. Among them, the moving trolley is located on the platform main body of the ocean platform; the sandbag placing frame is slidably arranged on the sand throwing rotating frame through the placing frame moving track; the sand throwing rotating frame is hinged to the moving trolley, and the sandbag placing frame throws sand when the sand throwing rotating frame rotates to the bottom of the platform main body.

[0006] As a further improvement of the above technical solution:

[0007] The sand throwing rotating frame is arranged at one end of the moving trolley, and an anti-tipping component for preventing the moving trolley from tipping during sand throwing is arranged at the end of the moving trolley away from the sand throwing rotating frame.

[0008] The anti-tipping component includes a fixed support leg and an anti-tipping pull rope. The fixed support leg supports at the bottom end of the moving trolley, and both ends of the anti-tipping pull rope are respectively connected to the fixed pile chamber of the ocean platform and the moving trolley.

[0009] The anti-tipping pull rope is wound around the outer circumference of the fixed pile chamber; or the anti-tipping pull rope is fixedly installed on the fixed pile chamber through a connection buckle.

[0010] The sand throwing rotary frame is an L-shaped rotary frame. One side of the L-shaped rotary frame is hinged to the mobile trolley, and the sandbag placement frame is movably installed on the other side of the L-shaped rotary frame through the placement frame moving track.

[0011] The sandbag placement frame is located inside the L-shaped rotary frame. An activity drawplate for throwing sandbags is provided between the sandbag placement frame and the L-shaped rotary frame, and the activity drawplate is drawn out when the sand throwing rotary frame rotates to the bottom of the platform main body.

[0012] The activity drawplate is connected to a drawplate electric switch, and the drawplate electric switch is arranged at a position on the L-shaped rotary frame close to the activity drawplate.

[0013] The vertical section and the horizontal section of the L-shaped rotary frame are hinged. The vertical section rotates to a horizontal state when sandbags are placed in the sandbag placement frame.

[0014] Reinforcing rib plates are provided at the hinged position between the vertical section and the horizontal section of the L-shaped rotary frame, and rib plate card slots are provided on both the vertical section and the horizontal section.

[0015] The sandbag placement frame is provided with an anti-falling cover plate to prevent sandbags from falling out when the sand throwing rotary frame rotates. The anti-falling cover plate is hinged above the sandbag placement frame.

[0016] Compared with the prior art, the advantages of the present invention are as follows:

[0017] In the present invention, a mobile trolley is arranged on the platform main body of the offshore platform. The setting of the mobile trolley enables the sand throwing device to be flexibly moved to the sand throwing points near each pile leg for sand throwing operations. Its sand throwing operation range is wide, and problems such as long sand throwing cycle and high cost when using a sand throwing ship for sand throwing are avoided. The sand throwing rotary frame is hinged to the mobile trolley, and the sandbag placement frame slides on the sand throwing rotary frame through the placement frame moving track. The sandbag placement frame can perform sand throwing operations when the sand throwing rotary frame rotates to the bottom of the platform main body. Its operation is flexible and the sand throwing speed is fast; when sand throwing, the placement frame moving track can be used to adjust the sand throwing position of the sandbag placement frame to perform large-area and orderly sand throwing at different positions of the pile leg, so that there are still enough sandbags fixed near the platform pile leg and pile shoe after scouring to reduce or even prevent seabed scouring, ensure the foundation bearing capacity of the offshore platform, and avoid the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the following, the present invention will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0019] Figure 1 is a schematic structural diagram of the sand throwing device of the offshore platform of the present invention in specific applications.

[0020] Figure 2It is a schematic structural diagram of the sand throwing device of the ocean platform of the present invention (in the state of not throwing sand).

[0021] Figure 3 It is a schematic structural diagram of the sand throwing device of the ocean platform of the present invention (in the state of throwing sand).

[0022] Figure 4 It is a schematic diagram of the installation position of the anti-tilting stay rope of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the sand throwing rotary frame of the present invention when loading sandbags.

[0024] Each label in the figure represents:

[0025] 1. Mobile trolley; 2. Sand throwing rotary frame; 21. Rib plate slot; 3. Sandbag placement frame; 31. Anti-falling cover plate; 4. Placement frame moving track; 5. Ocean platform; 51. Platform main body; 52. Pile fixing chamber; 6. Anti-tilting component; 61. Fixed leg; 62. Anti-tilting stay rope; 7. Movable drawplate; 71. Drawplate electric switch; 8. Reinforcing rib plate; 9. Rotary frame driving part; 10. Driving part start switch. Specific implementation mode

[0026] The present invention will be further described in detail below in conjunction with the specification drawings and specific embodiments, but the protection scope of the present invention is not limited thereby.

[0027] As Figures 1 to 3 An embodiment of the sand throwing device of the ocean platform of the present invention is shown. The sand throwing device of the ocean platform can be used for newly built ocean platforms and can also be used for the optimization and transformation of existing ocean platforms. In this embodiment, the sand throwing device of the ocean platform includes a mobile trolley 1, a sand throwing rotary frame 2, a sandbag placement frame 3 and a placement frame moving track 4. Among them, the mobile trolley 1 is located on the platform main body 51 of the ocean platform 5 and can be flexibly moved to the sand throwing point; the sandbag placement frame 3 is slidably arranged on the sand throwing rotary frame 2 through the placement frame moving track 4; the sand throwing rotary frame 2 is hinged to the mobile trolley 1, and the sandbag placement frame 3 throws sand when the sand throwing rotary frame 2 rotates to the bottom of the platform main body 51.

[0028] In the present invention, a mobile trolley 1 is arranged on the platform main body 51 of the offshore platform 5. The arrangement of the mobile trolley 1 enables the sand throwing device to flexibly move to the sand throwing points near each pile leg for sand throwing operations. Its sand throwing operation range is wide, and it avoids problems such as long sand throwing cycles and high costs when using a sand throwing ship for sand throwing. The sand throwing rotating frame 2 is hinged to the mobile trolley 1, and the sandbag placement frame 3 is slidably arranged on the sand throwing rotating frame 2 through the placement frame moving track 4. When the sand throwing rotating frame 2 rotates to the bottom of the platform main body 51, the sandbag placement frame 3 can carry out sand throwing operations. Its operation is flexible and the sand throwing speed is fast. At the same time, when throwing sand, the sand throwing position of the sandbag placement frame 3 can be adjusted by using the placement frame moving track 4 to carry out large-area and orderly sand throwing at different positions of the pile leg, so that there are still enough sandbags fixed near the platform pile leg and pile shoe after scouring, to reduce or even prevent seabed scouring, ensure the foundation bearing capacity of the offshore platform 5, and avoid the occurrence of safety accidents.

[0029] Further, as Figures 2 to 4 shown, the sand throwing rotating frame 2 is arranged at one end of the mobile trolley 1, and an anti-tipping component 6 is arranged at the end of the mobile trolley 1 away from the sand throwing rotating frame 2 to prevent the mobile trolley 1 from tipping over when the sand throwing rotating frame 2 rotates for sand throwing, and ensure the reliable safety of the sand throwing operation.

[0030] In this embodiment, the anti-tipping component 6 includes a fixed support leg 61 and an anti-tipping pull rope 62. Among them, the fixed support leg 61 supports at the bottom end of the mobile trolley to fix the sand throwing position of the mobile trolley 1; both ends of the anti-tipping pull rope 62 are respectively connected to the pile fixing chamber 52 of the offshore platform 5 and the mobile trolley 1 to further fix the sand throwing position of the mobile trolley 1 and prevent the occurrence of the tipping-over phenomenon of the mobile trolley 1. In other embodiments, the setting form of the anti-tipping component 6 only needs to ensure the stability of the mobile trolley 1 during sand throwing, such as only the fixed support leg 61 or the anti-tipping pull rope 62 can also be set.

[0031] As Figure 4 shown, the anti-tipping pull rope 62 is wound around the outer periphery of the pile fixing chamber 52 to ensure the fixing effect of the mobile trolley 1; in other embodiments, the anti-tipping pull rope 62 can also be fixedly installed on the pile fixing chamber 52 through a connecting buckle. In this embodiment, the anti-tipping pull rope 62 is a steel wire pull rope.

[0032] In this embodiment, the sand throwing rotating frame 2 is an L-shaped rotating frame. One side of the L-shaped rotating frame is hinged to the mobile trolley 1, and the sandbag placement frame 3 is movably installed on the other side of the L-shaped rotating frame through the placement frame moving track 4. When throwing sand, the L-shaped rotating frame rotates to the lower part of the platform main body 51 for sand throwing operations. After sand throwing is completed, the L-shaped rotating frame rotates back and loads sandbags. Then, the position of the sandbag placement frame 3 is adjusted through the placement frame moving track 4, and then the L-shaped rotating frame is rotated to the lower part of the platform main body 51 for sand throwing operations to achieve intensive and orderly sand throwing operations. Its sand throwing structure is simple, the operation is convenient, and the effective fixation of the pile leg is realized.

[0033] As Figure 2 and Figure 3 shown, the sandbag placement frame 3 is located inside the L-shaped rotating frame. An active drawplate 7 is provided between the sandbag placement frame 3 and the L-shaped rotating frame. The active drawplate 7 is withdrawn when the sand throwing rotating frame 2 rotates to the bottom of the platform main body 51, so that the sandbag is thrown out of the sandbag placement frame 3, ensuring the reliable operation of the sand throwing operation.

[0034] In this embodiment, the active drawplate 7 is connected to a drawplate electric switch 71. The drawplate electric switch 71 is provided at a position on the L-shaped rotating frame close to the active drawplate 7 to control the opening and closing of the active drawplate 7. At the same time, the sand throwing rotating frame 2 is connected to a rotating frame driving member 9, and the rotating frame driving member 9 is controlled by a driving member start switch 10.

[0035] As Figure 5 shown, the vertical section and the horizontal section of the L-shaped rotating frame are hinged. The vertical section rotates to the horizontal state when the sandbag is placed in the sandbag placement frame 3. To facilitate the sandbag to be put into the sandbag placement frame 3; after the sandbag is placed, the sandbag placement frame 3 is rotated to the vertical state to facilitate the subsequent sand throwing operation.

[0036] Further, a reinforcing rib plate 8 is provided at the hinged position between the vertical section and the horizontal section of the L-shaped rotating frame, and rib plate slots 21 are provided on both the vertical section and the horizontal section. When the sandbag is filled and rotated to the vertical state, both ends of the reinforcing rib plate 8 are respectively inserted into the rib plate slots 21 of the vertical section and the horizontal section to ensure that the sand throwing rotating frame 2 has sufficient strength during sand throwing. In this embodiment, there are multiple reinforcing rib plates 8, and the multiple reinforcing rib plates 8 are arranged along the width direction of the L-shaped rotating frame.

[0037] Further, the sandbag placement frame 3 is provided with an anti-falling cover plate 31, and the anti-falling cover plate 31 is hinged above the sandbag placement frame 3. When the sandbag is loaded, the anti-falling cover plate 31 is opened; after the sandbag is loaded, the anti-falling cover plate 31 is closed to prevent the sandbag from falling out when the sand throwing rotating frame 2 rotates.

[0038] In this embodiment, the operation method of the offshore platform sand throwing device is as follows: 1) Move the mobile trolley 1 to the designated sand throwing position of the platform main body 51 by using a crane or self-driving; 2) Fix the position of the mobile trolley 1 by using the fixed support leg 61 and the anti-tipping pull rope 62; 3) Rotate the L-shaped rotating frame to the horizontal state and load the sandbag into the sandbag placement frame 3; 4) After the sandbag is loaded, rotate the vertical section of the L-shaped rotating frame to the vertical state and install the reinforcing rib plate 8; 5) Rotate the L-shaped rotating frame to the bottom of the platform main body 51 and withdraw the active drawplate 7 to perform the sand throwing operation; 6) Repeat the above steps, and adjust the position of the sandbag placement frame 3 through the placement frame moving track 4 to perform dense and orderly sand throwing operations. After the sand throwing is completed, the mobile trolley 1 moves to the next sand throwing location to perform the sand throwing operation.

[0039] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An offshore platform sand casting device, characterized in that, It includes a mobile trolley, a sand - throwing rotating frame, a sand - bag placing frame and a placing - frame moving track. Among them, the mobile trolley is located on the platform body of the offshore platform; the sand - bag placing frame is slidably arranged on the sand - throwing rotating frame through the placing - frame moving track; the sand - throwing rotating frame is hinged to the mobile trolley. The sand - throwing rotating frame is an L - shaped rotating frame. One side of the L - shaped rotating frame is hinged to the mobile trolley, and the sand - bag placing frame is movably installed on the other side of the L - shaped rotating frame through the placing - frame moving track. The sand - throwing rotating frame is connected with a rotating - frame driving part, and the rotating - frame driving part is controlled by a driving - part start switch. The sand - bag placing frame throws sand when the sand - throwing rotating frame rotates to the bottom of the platform body. The sand - throwing rotating frame is arranged at one end of the mobile trolley. An anti - tipping component for preventing the mobile trolley from tipping over during sand - throwing is arranged at the end of the mobile trolley away from the sand - throwing rotating frame. The sand - bag placing frame is located inside the L - shaped rotating frame. An activity draw - plate for sand throwing is arranged between the sand - bag placing frame and the L - shaped rotating frame, and the activity draw - plate is drawn out when the sand - throwing rotating frame rotates to the bottom of the platform body.

2. The marine platform sand throwing device according to claim 1, wherein, The anti - tipping component includes a fixed support leg and an anti - tipping pull rope. The fixed support leg supports at the bottom end of the mobile trolley, and the two ends of the anti - tipping pull rope are respectively connected to the fixed - pile chamber of the offshore platform and the mobile trolley.

3. The sand casting device for an offshore platform according to claim 2, wherein, The anti - tipping pull rope is wound around the outer periphery of the fixed - pile chamber; or the anti - tipping pull rope is fixedly installed on the fixed - pile chamber through a connecting buckle.

4. The sand throwing device for an offshore platform according to claim 1, wherein, The activity draw - plate is connected to a draw - plate electric switch, and the draw - plate electric switch is arranged at a position of the L - shaped rotating frame close to the activity draw - plate.

5. The sand casting device for an offshore platform according to claim 1, characterized in that, The vertical section and the horizontal section of the L - shaped rotating frame are hinged. The vertical section rotates to a horizontal state when the sand - bag placing frame places sand bags.

6. The sand throwing device for an offshore platform according to claim 5, characterized in that, Reinforcing rib plates are arranged at the hinged position of the vertical section and the horizontal section of the L - shaped rotating frame, and rib - plate clamping grooves are arranged on both the vertical section and the horizontal section.

7. The sand casting device for an offshore platform according to claim 1 or 2, characterized in that, The sand - bag placing frame is provided with an anti - falling cover plate for preventing sand bags from falling out when the sand - throwing rotating frame rotates. The anti - falling cover plate is hinged above the sand - bag placing frame.

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