A riser universal inspection device

Abstract

The application discloses a general inspection device for a riser, and solves the technical problem of inconvenient operation during riser inspection. The device comprises a transport forklift, a first rotating lifting mechanism and a second rotating lifting mechanism. The transport forklift is used for transferring the riser. The first rotating lifting mechanism is used for supporting one end of the riser. The second rotating lifting mechanism is used for supporting the other end of the riser. The first rotating lifting mechanism and the second rotating lifting mechanism are used for jointly controlling the riser lifting and rotating. The application can facilitate the inspection work of the riser by the staff, reduce the burden of the staff, improve the work efficiency, reduce the safety hidden danger, and can also be adapted to different risers, thereby improving the use adaptability.

Description

Technical Field

[0001] This invention belongs to the field of water-supporting pipe inspection technology, specifically relating to a universal inspection device for water-supporting pipes. Background Technology

[0002] In recent years, my country's offshore oil exploration and development has gradually moved towards the deep sea. The offshore drilling riser is a key piece of equipment for floating drilling platforms to carry out drilling operations. Because the drilling riser works underwater, it is subjected to the direct effects of ocean wind, waves, and currents for a long time, resulting in fatigue and stress. Therefore, the riser needs to be inspected and maintained regularly.

[0003] Currently, the inspection of traditional risers is primarily carried out on-site or in workshops, relying on manual operation for flipping and disassembling. This method is labor-intensive, inefficient, time-consuming, and poses significant safety hazards. Furthermore, the wide variety of risers—different types, shapes, sizes, and weights—significantly increases the complexity and tediousness of the work, necessitating improvement. Summary of the Invention

[0004] In order to solve all or part of the above problems, the purpose of this invention is to provide a universal inspection device for risers, which can facilitate the inspection of risers by workers, reduce the burden on workers, improve work efficiency, reduce safety hazards, and can be adapted to different risers, thereby improving the adaptability of use.

[0005] The present invention provides a universal inspection device for risers, including a transport forklift, a first rotary lifting mechanism and a second rotary lifting mechanism. The transport forklift is used to transfer the riser, the first rotary lifting mechanism is used to support one end of the riser, the second rotary lifting mechanism is used to support the other end of the riser, and the first rotary lifting mechanism and the second rotary lifting mechanism are used to jointly control the lifting and rotation of the riser.

[0006] Optionally, the first rotary lifting mechanism includes: Support base; The first hydraulic cylinder assembly is mounted on the support base; The first rotating part is disposed on the piston end of the first hydraulic cylinder assembly; The first hydraulic cylinder assembly is used to control the lifting and lowering of the first rotating part, and the first rotating part is used to support and control the rotation of the flange at the end of the water-proof pipe.

[0007] Optionally, the first rotating part includes: The first support frame is disposed on the piston end of the first hydraulic cylinder assembly; The first rotating frame consists of two units, which are symmetrically arranged on the first support frame; The first rotating wheel consists of two sets, which are correspondingly mounted on the corresponding first rotating frame; There are two first drive units, each of which is disposed on the first rotating frame. Each first drive unit is used to control the rotation of the corresponding first rotating wheel. Each group of first rotating wheels is provided with multiple first rotating wheels, and at least one first rotating wheel can abut against the lower part of the flange at the end of the water-proof pipe.

[0008] Optionally, the second rotary lifting mechanism includes: Track components; A mobile flatcar is slidably connected to the track assembly, and the mobile flatcar is equipped with a braking assembly; The second hydraulic cylinder assembly is mounted on the moving flatcar; The second rotating part is disposed on the piston end of the second hydraulic cylinder assembly; The second hydraulic cylinder assembly is used to control the lifting and lowering of the second rotating part, and the second rotating part is used to support and control the rotation of the flange at the end of the water-proof pipe.

[0009] Optionally, the first hydraulic cylinder group and the second hydraulic cylinder group may share the same hydraulic power station or each be equipped with a separate hydraulic power station.

[0010] Optionally, the second rotating part includes: The second support frame is mounted on the piston end of the second hydraulic cylinder assembly; There are two second rotating frames, which are symmetrically arranged on the second support frame; The second rotating wheel consists of two sets, which are correspondingly mounted on the corresponding second rotating frame; There are two second drive units, each of which is disposed on the second rotating frame. Each second drive unit is used to control the rotation of the corresponding second rotating wheel. Each group of second rotating wheels is provided with multiple wheels, and at least one of the second rotating wheels can abut against the lower part of the flange at the end of the water-proof pipe.

[0011] Optionally, the track assembly includes multiple sets of support tracks, which are arranged sequentially, and adjacent sets of support tracks are detachably connected by locking components.

[0012] Optionally, each set of support rails includes two parallel sliding rails and multiple parallel support beams, with each sliding rail fixedly connected to the corresponding end of each of the multiple support beams.

[0013] Optionally, the multiple support beams in each set of support rails are arranged at equal intervals along the length direction of the corresponding sliding rail, and the two forklift arms of the transport forklift can enter between any two adjacent support beams.

[0014] As can be seen from the above technical solution, the universal inspection device for water-proof pipes provided by the present invention has the following advantages: This universal inspection device for risers can control the lifting and rotation of risers, making it convenient for workers to inspect risers, reducing the workload of workers, improving work efficiency, reducing safety hazards, and can also be used with different risers, thereby improving adaptability.

[0015] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a top view of an embodiment of the present invention; Figure 3 This is a side view of an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first rotating part in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the first rotating part in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second rotating part in an embodiment of the present invention; Figure 7 This is a cross-sectional view of the second rotating part in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Transport forklift; 2. First rotary lifting mechanism; 21. Support base; 22. First hydraulic cylinder assembly; 23. First rotating part; 231. First support frame; 232. First rotating frame; 233. First rotating wheel; 234. First drive unit; 3. Second rotary lifting mechanism; 31. Rail assembly; 311. Support rail; 312. Sliding rail; 313. Support bolster beam; 32. Moving flatcar; 33. Second hydraulic cylinder assembly; 34. Second rotating part; 341. Second support frame; 342. Second rotating frame; 343. Second rotating wheel; 344. Second drive unit. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be arbitrarily combined with each other.

[0020] like Figures 1-7 The following is an embodiment of the present invention, which discloses a universal inspection device for risers, including a transport forklift 1, a first rotary lifting mechanism 2, and a second rotary lifting mechanism 3. The transport forklift 1 is used to transfer risers, the first rotary lifting mechanism 2 is used to support one end of the riser, and the second rotary lifting mechanism 3 is used to support the other end of the riser. The first rotary lifting mechanism 2 and the second rotary lifting mechanism 3 are used to jointly control the lifting, lowering, and rotating of the riser.

[0021] The universal inspection device for risers in this embodiment can realize the lifting and rotation control of risers, making it convenient for workers to inspect risers, reducing the burden on workers, improving work efficiency, and reducing safety hazards.

[0022] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, the first rotary lifting mechanism 2 includes a support base 21, a first hydraulic cylinder group 22, and a first rotating part 23. The first hydraulic cylinder group 22 is disposed on the support base 21, and the first rotating part 23 is disposed on the piston end of the first hydraulic cylinder group 22. The first hydraulic cylinder group 22 is used to control the lifting and lowering of the first rotating part 23, and the first rotating part 23 is used to support and control the rotation of the flange at the end of the water-proof pipe.

[0023] In this embodiment, the first hydraulic cylinder group 22 includes a plurality of hydraulic cylinders arranged in a matrix, and the first rotating part 23 is fixedly connected to the piston ends of the plurality of hydraulic cylinders respectively, that is, the plurality of hydraulic cylinders can jointly control the lifting and lowering of the first rotating part 23.

[0024] In one embodiment, such as Figure 1 , Figure 2 As shown, the second rotary lifting mechanism 3 includes a track assembly 31, a movable flatcar 32, a second hydraulic cylinder group 33, and a second rotating part 34. The movable flatcar 32 is slidably connected to the track assembly 31, and a brake assembly is provided on the movable flatcar 32 to allow the movable flatcar 32 to be fixed at any position on the track assembly 31. The second hydraulic cylinder group 33 is disposed on the movable flatcar 32, and the second rotating part 34 is disposed on the piston end of the second hydraulic cylinder group 33. The second hydraulic cylinder group 33 is used to control the lifting and lowering of the second rotating part 34, and the second rotating part 34 is used to support and control the rotation of the flange at the end of the water-tight pipe.

[0025] In this embodiment, the second hydraulic cylinder group 33 includes a plurality of hydraulic cylinders arranged in a matrix, and the second rotating part 34 is fixedly connected to the piston ends of the plurality of hydraulic cylinders respectively, that is, the plurality of hydraulic cylinders can jointly control the lifting and lowering of the second rotating part 34.

[0026] In this embodiment, the first hydraulic cylinder group 22 and the second hydraulic cylinder group 33 share the same hydraulic station or are each equipped with a separate hydraulic station. In this embodiment, it is preferable that the first hydraulic cylinder group 22 and the second hydraulic cylinder group 33 are each equipped with a separate hydraulic station.

[0027] Since the moving flatcar 32 can slide along the track assembly 31, the distance between the first rotating part 23 and the second rotating part 34 can be adjusted, thereby enabling the inspection device to adapt to water pipes of different lengths, thus improving its adaptability.

[0028] In this embodiment, the braking assembly adopts a clamping brake, that is, the brake plate of the braking assembly can press against the rail to fix the moving flatcar 32. This is the prior art and will not be listed in detail here.

[0029] In one embodiment, such as Figure 1 , Figure 2 As shown, the track assembly 31 includes multiple sets of support tracks 311, which are arranged in sequence. Adjacent sets of support tracks 311 are detachably connected by locking components, so that the operator can adjust the moving flatcar 32 to different positions by adding or removing support tracks 311 according to the length of the water-tight pipe. In this embodiment, the inspection device is adapted to water-tight pipe lengths of 5-75ft.

[0030] In one embodiment, such as Figure 1 , Figure 2 As shown, each set of support rails 311 includes two parallel sliding rails 312 and multiple parallel support beams 313. The sliding rails 312 are perpendicular to the support beams 313 and are located above the support beams 313. Each sliding rail 312 is fixedly connected to the corresponding end of the multiple support beams 313.

[0031] In this embodiment, the locking component is used to connect two adjacent sliding rails 312. The locking component in this embodiment includes a U-shaped fastening bolt, the two ends of which can pass through the mounting holes on the corresponding sliding rails 312, thereby realizing the connection of the two sliding rails 312. Of course, in other embodiments, the locking component can also adopt other structures such as rail clamps, as long as it can realize the connection of the two sliding rails 312, which will not be listed in detail here.

[0032] In one embodiment, such as Figure 1 , Figure 2As shown, multiple support beams 313 in each set of support rails 311 are arranged at equal intervals along the length of the corresponding sliding rails 312, and the distance between two adjacent support beams 313 is greater than the distance between the two forklift arms of the transport forklift 1. In other words, the two forklift arms of the transport forklift 1 can enter between any two adjacent support beams 313, so that the workers can use the transport forklift 1 to perform operations such as transferring the support rails 311.

[0033] In one embodiment, such as Figure 2 , Figure 4 , Figure 5 As shown, the first rotating part 23 includes a first support frame 231, a first rotating frame 232, a first rotating wheel 233 and a first driving part 234. The first support frame 231 is fixed on the piston end of the first hydraulic cylinder group 22. There are two first rotating frames 232, and the two first rotating frames 232 are symmetrically fixedly connected to the first support frame 231.

[0034] In one embodiment, such as Figure 2 , Figure 4 , Figure 5 As shown, there are two sets of first rotating wheels 233, and the two sets of first rotating wheels 233 are respectively arranged on the corresponding first rotating frame 232. There are two first driving units 234, which are respectively fixedly connected to the first rotating frame 232, and each first driving unit 234 is used to control the rotation of the corresponding first rotating wheel 233.

[0035] In one embodiment, such as Figure 2 , Figure 4 , Figure 5 As shown, each group of first rotating wheels 233 is provided with multiple first rotating wheels 233, and at least one first rotating wheel 233 can abut against the lower part of the flange at the end of the water-tight pipe. In this embodiment, each group of first rotating wheels 233 is provided with two, the two first rotating wheels 233 are arranged one above the other, and the two first rotating wheels 233 are arranged in a staggered manner along the lateral side.

[0036] In one embodiment, such as Figure 2 , Figure 5 , Figure 6 As shown, the second rotating part 34 includes a second support frame 341, a second rotating frame 342, a second rotating wheel 343, and a second driving part 344. The second support frame 341 is fixed on the piston end of the second hydraulic cylinder group 33. There are two second rotating frames 342, and the two second rotating frames 342 are symmetrically fixedly connected to the second support frame 341.

[0037] In one embodiment, such as Figure 2 , Figure 5 , Figure 6As shown, there are two sets of second rotating wheels 343, and the two sets of second rotating wheels 343 are respectively arranged on the corresponding second rotating frame 342. There are two second driving units 344, and the two second driving units 344 are respectively fixedly connected to the second rotating frame 342. Each second driving unit 344 is used to control the rotation of the corresponding second rotating wheel 343.

[0038] In one embodiment, such as Figure 2 , Figure 5 , Figure 6 As shown, each group of second rotating wheels 343 is provided with multiple wheels, and at least one second rotating wheel 343 can abut against the lower part of the flange at the end of the water-tight pipe. In this embodiment, each group of second rotating wheels 343 is provided with two wheels, which are arranged one above the other and staggered laterally.

[0039] In simple terms, if the riser pipe is small, the two first rotating wheels 233 and two second rotating wheels 343 located below will abut against the flange at the end of the riser pipe; if the riser pipe is the right size, the two sets of first rotating wheels 233 and two sets of second rotating wheels 343 will abut against the flange at the end of the riser pipe; if the riser pipe is large, the two first rotating wheels 233 and two second rotating wheels 343 located above will abut against the flange at the end of the riser pipe. Therefore, the inspection device in this embodiment can adapt to risers of different diameters, and the adaptable pipe diameter is Φ800-1300mm.

[0040] In this embodiment, the first drive unit 234 and the second drive unit 344 respectively include a hydraulic motor, a reducer and a gear set. The hydraulic motor is connected to the hydraulic station, the output shaft of the hydraulic motor is connected to the output shaft of the reducer, and the gear set is connected to the corresponding rotating wheel and the output shaft of the reducer. That is, the first drive unit 234 can make the two corresponding first rotating wheels 233 rotate synchronously in the same direction, and the second drive unit 344 can make the two corresponding second rotating wheels 343 rotate synchronously in the same direction.

[0041] The universal inspection device for water-proof pipes in this embodiment is used as follows: S1, based on the length of the water-tight pipe, control the moving flatcar 32 to adjust to a suitable position on the track assembly 31, and use the brake assembly to lock the moving flatcar 32.

[0042] S2, the riser pipe is lifted by the lifting equipment, one end of the riser pipe is placed on the first rotating part 23 and the other end is placed on the second rotating part 34, and the flanges at both ends of the riser pipe are supported by the first rotating wheel 233 and the second rotating wheel 343.

[0043] S3, start the hydraulic station, and control the corresponding first rotating wheel 233 and second rotating wheel 343 to rotate through the first drive unit 234 and the second drive unit 344, so that the water-proof pipe rotates until the lower semicircle of the buoyancy block on the water-proof pipe is directly below.

[0044] S4, operate the transport forklift 1 to move, and move the two forklift arms of the transport forklift 1 to below the buoyancy block on the water riser.

[0045] S5, disassemble the connector between the upper and lower semicircles of the buoyancy block on the riser pipe to separate them, and use hoisting equipment to lift away the upper semicircle of the buoyancy block.

[0046] S6 controls the first hydraulic cylinder group 22 and the second hydraulic cylinder group 33 to rise synchronously until the water-proof pipe separates from the lower half of the buoyancy block, and the lower half of the buoyancy block is transferred to the designated position by the transport forklift 1.

[0047] S7 controls the first hydraulic cylinder group 22 and the second hydraulic cylinder group 33 to descend synchronously so that the water-stop pipe can be reset.

[0048] S8, the staff stands at both ends of the water-tight pipe and rotates the water-tight pipe together through the first rotating part 23 and the second rotating part 34 to put one of the auxiliary pipes in the best disassembly position. Then the auxiliary pipe is disassembled from one side. After one auxiliary pipe is disassembled, the water-tight pipe is rotated to disassemble the next one until all of them are disassembled.

[0049] S8. Continue rotating the riser pipe and check its appearance quality, such as flange damage, pipe deformation, paint peeling, etc.

[0050] S9. If a quality problem is found, rotate the damaged part of the riser to a suitable position so that welding, flaw detection, painting and other inspection work can continue.

[0051] S10. After the inspection is completed, reverse the steps to complete the installation of the auxiliary pipeline and buoyancy block.

[0052] As can be seen from the above, the inspection device adapts to the length of the riser by moving the flatbed 32, and by supporting, rotating and raising the riser, the riser can rotate circumferentially and move up and down, so that personnel can perform various inspections of the riser by standing in the corresponding position.

[0053] Meanwhile, compared to traditional riser inspection devices, this mechanized approach reduces the workload of personnel and improves work efficiency during riser inspection. It is also suitable for various flanged and locking-block riser structures, and is applicable to riser lengths of 5-75ft, offering strong versatility and wide coverage.

[0054] Moreover, compared to traditional riser inspection devices, the lifting structure, combined with a transport forklift, allows for the simultaneous installation and removal of multiple sets of buoyancy blocks. The rotating part controls the rotation of the riser, covering the entire circumferential area of ​​the riser.

[0055] Therefore, this inspection device allows workers to stand in a safe position to disassemble and assemble auxiliary pipelines and buoyancy blocks of the riser, and to carry out various inspections such as welding, flaw detection, and painting on various parts of the riser. This greatly reduces the labor intensity on site, improves the efficiency of riser inspection, and can safely and reliably complete the riser inspection work.

[0056] It should be noted that, unless otherwise stated, the technical or scientific terms used in this invention should have the ordinary meaning as understood by one of ordinary skill in the art.

[0057] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A universal inspection device for water-resistant pipes, characterized in that, It includes a transport forklift (1), a first rotating lifting mechanism (2) and a second rotating lifting mechanism (3). The transport forklift (1) is used to transfer the water riser. The first rotating lifting mechanism (2) is used to support one end of the water riser. The second rotating lifting mechanism (3) is used to support the other end of the water riser. The first rotating lifting mechanism (2) and the second rotating lifting mechanism (3) are used to jointly control the lifting and rotation of the water riser.

2. The universal inspection device for water-resistant pipes according to claim 1, characterized in that, The first rotary lifting mechanism (2) includes: Support base (21); The first hydraulic cylinder assembly (22) is mounted on the support base (21); The first rotating part (23) is disposed on the piston end of the first hydraulic cylinder group (22); The first hydraulic cylinder group (22) is used to control the lifting and lowering of the first rotating part (23), and the first rotating part (23) is used to support and control the rotation of the flange at the end of the water-proof pipe.

3. The universal inspection device for water-resistant pipes according to claim 2, characterized in that, The first rotating part (23) includes: The first support frame (231) is disposed on the piston end of the first hydraulic cylinder group (22); The first rotating frame (232) consists of two units, which are symmetrically arranged on the first support frame (231); The first rotating wheel (233) consists of two sets, which are respectively set on the corresponding first rotating frame (232); There are two first drive units (234), which are respectively disposed on the first rotating frame (232). Each first drive unit (234) is used to control the rotation of the corresponding first rotating wheel (233). Each group of first rotating wheels (233) is provided with multiple first rotating wheels (233), and at least one first rotating wheel (233) can abut against the lower part of the flange at the end of the water-proof pipe.

4. The universal inspection device for water-resistant pipes according to claim 2, characterized in that, The second rotary lifting mechanism (3) includes: Track assembly (31); A mobile flatcar (32) is slidably connected to the track assembly (31), and a brake assembly is provided on the mobile flatcar (32); The second hydraulic cylinder assembly (33) is mounted on the moving flatcar (32); The second rotating part (34) is disposed on the piston end of the second hydraulic cylinder group (33); The second hydraulic cylinder assembly (33) is used to control the lifting and lowering of the second rotating part (34), and the second rotating part (34) is used to support and control the rotation of the flange at the end of the water-proof pipe.

5. The universal inspection device for water-resistant pipes according to claim 4, characterized in that, The first hydraulic cylinder group (22) and the second hydraulic cylinder group (33) share the same hydraulic station or are each equipped with a separate hydraulic station.

6. The universal inspection device for water-resistant pipes according to claim 4, characterized in that, The second rotating part (34) includes: The second support frame (341) is disposed on the piston end of the second hydraulic cylinder group (33); The second rotating frame (342) consists of two units, which are symmetrically arranged on the second support frame (341); The second rotating wheel (343) consists of two sets, which are correspondingly arranged on the corresponding second rotating frame (342); There are two second drive units (344), which are respectively disposed on the second rotating frame (342). Each second drive unit (344) is used to control the rotation of the corresponding second rotating wheel (343). Each group of second rotating wheels (343) is provided with multiple of them, and at least one of the second rotating wheels (343) can abut against the lower part of the flange at the end of the water-proof pipe.

7. The universal inspection device for water-resistant pipes according to claim 4, characterized in that, The track assembly (31) includes multiple sets of support tracks (311), which are arranged in sequence, and adjacent sets of support tracks (311) are detachably connected by locking components.

8. The universal inspection device for water-resistant pipes according to claim 7, characterized in that, Each set of support rails (311) includes two parallel sliding rails (312) and multiple parallel support beams (313), with each sliding rail (312) fixedly connected to the corresponding end of each of the multiple support beams (313).

9. The universal inspection device for water-resistant pipes according to claim 8, characterized in that, In each set of support rails (311), multiple support beams (313) are arranged at equal intervals along the length of the corresponding sliding rail (312), and the two forklift arms of the transport forklift (1) can enter between any two adjacent support beams (313).

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