Special offshore operating platform for rotary tube pile driver

Abstract

The present invention discloses a dedicated offshore operating platform for a rotary tubing pile driver. The platform comprises a hull with a matching recess for the pile driver at the stern of the hull. The rotary tubing pile driver and a slidable clamp mechanism for the rotary tubing at the bottom of the hull are mounted in the recess. The slidable clamp mechanism for the rotary tubing at the bottom of the hull is located below the rotary tubing pile driver. A crane is provided in the middle of the top deck of the hull. The dedicated offshore operating platform for the rotary tubing pile driver provided by the present invention enables the rotary tubing pile driver to perform rapid, unobstructed drilling and piling operations at sea under any geological conditions.

Description

Technical Field

[0001] The present invention relates to the field of offshore operation vessels, and in particular to a dedicated offshore operation platform for a rotary tubing pile driver. Background Art

[0002] Patent applications such as 202110577984X and 2021105779939 disclose a "Rotary Tube Piling Machine" and a "Rotary Tube Excavation and Pipe Jacking Machine." The "Rotary Tube Piling Machine" revolutionizes existing bored pile construction technology, enabling rapid and barrier-free construction in any terrestrial geological conditions.

[0003] In recent years, technologies for offshore oil platforms and offshore wind turbines have advanced rapidly. Pile foundation construction and equipment installation are crucial tasks. Various types of piling and installation vessels are used in these projects. As offshore oil platforms and offshore wind turbines grow in size, these vessels are also becoming larger, more complex, and more expensive.

[0004] In order to make the above-mentioned "coil pile driver" also applicable to offshore construction, the inventor consulted relevant technologies, but did not find a ship platform suitable for offshore construction of "coil pile driver". Traditional hulls do not have a location for additional installation of "coil pile driver". Once installed, the center of gravity of the hull will shift significantly. Moreover, when the coil is deep in the sea, there is no guide structure, causing the coil to shake relative to the platform. There is a problem that the "coil pile driver" and the coil joint are easily damaged. The "coil pile driver" and the coil joint have a short service life and require frequent maintenance. They cannot operate uninterruptedly for a long time, and the work efficiency is low. Therefore, it is necessary to design an offshore operation platform suitable for the use of "coil pile driver". Summary of the Invention

[0005] The purpose of the present invention is to provide a special offshore operating platform for a rotary tube pile driver, so that the rotary tube pile driver can perform fast and barrier-free drilling and pile construction under any geological conditions at sea.

[0006] To achieve the above-mentioned object, the present invention provides a dedicated offshore operating platform for a rotary tubing pile driver, comprising a hull, a pile driver matching recess being provided at the stern of the hull, a rotary tubing pile driver and a slidable clamp mechanism for the rotary tubing at the bottom of the hull being installed at the matching recess, the slidable clamp mechanism for the rotary tubing at the bottom of the hull being located below the rotary tubing pile driver; and a crane being provided in the middle of the top plywood of the hull.

[0007] As a further improvement of the present invention, the sliding clamp mechanism of the spiral tube at the bottom of the hull includes at least two clamp push rods arranged around the center of the spiral tube, and at least one pair of balls are rotatably connected to the clamp push rod at one end facing the side wall of the spiral tube; the clamp push rod is slidably matched with a push rod sleeve arranged on the hull; the sliding clamp mechanism of the spiral tube at the bottom of the hull also includes a force transmission rod, which is rotatably connected to a force transmission rod support arranged on the hull, and the force transmission rod is linked to the clamp push rod through a transmission structure.

[0008] The transmission structure includes a gear connected to the force transmission rod and a rack arranged on the clamp push rod, and the gear is meshed with the rack.

[0009] As a further improvement of the present invention, a steel ring is provided on the force transmission rod, and a crowbar through-hole cooperating with the crowbar is provided in the middle of the steel ring.

[0010] As a further improvement of the present invention, the clamp push rod includes a rod head and a square rod body connected in sequence; the square rod body is slidably matched with the push rod sleeve; the end face of the rod head is provided with at least a pair of semicircular ball grooves; the end face of the rod head is also connected to a ball retaining cap through a connecting bolt; the ball retaining cap includes a base plate, at least a pair of ball leakage holes are provided on the base plate, and an annular ball retaining cap is connected to the edge of the ball leakage hole, and the ball is located between the semicircular ball groove and the ball retaining cap.

[0011] As a further improvement of the present invention, both sides of the hull are further connected with ship-side vertical sea wave energy collectors, and the ship-side vertical sea wave energy collectors are connected with a high-voltage oil power generation system.

[0012] As a further improvement of the present invention, the ship's side vertical sea wave energy collector includes a hydraulic cylinder fixedly connected to the hull, the hydraulic cylinder is movably connected to a float hydraulic connecting rod, the float hydraulic connecting rod is connected to a float through a float joint, and the float is flat; the float is slidably connected to a float positioning slide rod, the float positioning slide rod is connected to the hull, and a float limiting ring is provided on the float positioning slide rod; the hydraulic cylinder is also connected to a pressure oil pipe and a return oil pipe, the pressure oil pipe is connected to a first one-way valve, and the return oil pipe is connected to a second one-way valve.

[0013] As a further improvement of the present invention, the high-pressure oil power generation system includes a third one-way valve, a hydraulic oil pressure-stabilizing tank, an automatic solenoid valve, a high-pressure hydro-generator, an oil drain port and an oil return tank connected in sequence along the flow direction of the hydraulic oil; the output end of the pressure oil pipe is connected to the input end of the third one-way valve, and the return oil tank is connected to the input end of the return oil pipe.

[0014] As a further improvement of the present invention, the hull is provided with a hollow cargo hold, a personnel public space, a personnel lounge, a generator room, a power storage and distribution room and a distilled water production room located below the top plywood.

[0015] Beneficial effects

[0016] Compared with the prior art, the advantages of the dedicated offshore operating platform for rotary tubing pile drivers of the present invention are:

[0017] 1. It can be equipped with spiral pipe pile digging machine, crane, ship side vertical wave energy collector and high-pressure oil power generation system, and has enough space to load spiral pipe, drill bit, tools and other necessary construction materials.

[0018] 2. The vertical wave energy collectors on the ship's sides utilize floats, located on either side of the hull. The rise and fall of these floats with the waves generates power for the hydraulic oil, which drives the high-pressure turbine generator to generate electricity. This provides the platform with a continuous green energy source. This energy can be used to power the spiral pipe pile driver, crane, and hull, meeting the platform's general electricity needs, fresh water needs, and supplementing some construction operations. Furthermore, the floats absorb the impact of waves and the lateral pressure of the platform's rolling, thereby reducing platform sway caused by wave fluctuations.

[0019] 3. The rotary tube pile driver is set in the matching recess of the pile driver, which not only meets the site space requirements of the "rotary tube pile driver" operation, but also allows the "rotary tube pile driver" to be closer to the center of gravity of the ship, reducing the platform shaking caused by the operation of the "rotary tube pile driver" and smoothly realizing the separation of the pile and the platform after completion.

[0020] 4. There are almost no other protruding facilities on the top plywood except the "rotary pipe pile driver" and crane, which provides a clean and open space for offshore construction and reduces the impact of sea breeze on construction operations.

[0021] 5. The sliding clamp mechanism for the coil at the bottom of the hull can significantly reduce the shaking of the coil relative to the platform when it is immersed in the sea. This not only solves the problem of easy damage to the joint of the "coil pile driver" and the coil, extending its service life, but also ensures that the coil can slide smoothly up and down. This special mechanism is manually operated. After the crowbar is passed through the crowbar hole at the upper end of the force transmission rod, the force transmission rod is rotated using the lever principle, so that the gear drives the clamp push rod to move and the coil is clamped. Because the end of the clamp push rod is equipped with at least one pair of ball bearings, when it contacts the side wall of the coil, it can prevent the coil from shaking and ensure that the coil can rotate around the axis, making it strong and reliable. The "coil pile driver" and the coil joint have a long service life and do not require frequent maintenance, which is conducive to long-term uninterrupted operation and improves work efficiency.

[0022] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a top view of the offshore operating platform dedicated to the rotary tubing pile driver;

[0025] Figure 2 This is the main view of the offshore operating platform dedicated to the rotary tube pile driver;

[0026] Figure 3 This is the second deck plan of the offshore operation platform dedicated to rotary tubing pile driver;

[0027] Figure 4 This is a top view of the large cargo hold on the bottom floor of the offshore operation platform dedicated to rotary tube pile driving rigs;

[0028] Figure 5 This is a main cross-sectional view of the offshore operating platform dedicated to the rotary tube pile driver;

[0029] Figure 6 This is the rear view of the offshore operating platform dedicated to the rotary tubing pile driver;

[0030] Figure 7 A top view of the slidable clamp mechanism of the spiral tube at the bottom of the hull;

[0031] Figure 8 It is a partial front view of the slidable clamp mechanism of the spiral tube at the bottom of the hull;

[0032] Figure 9 It is a side view of the slidable clamp mechanism of the spiral pipe at the bottom of the hull;

[0033] Figure 10 It is a top view of the clamp push rod;

[0034] Figure 11 This is a side view of the club head;

[0035] Figure 12 It is a side view of the ball retaining cap;

[0036] Figure 13 This is a schematic diagram of the connection between the ship's side vertical sea wave energy collector and the high-voltage oil power generation system. DETAILED DESCRIPTION

[0037] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0038] Example

[0039] The specific embodiments of the present invention are as follows Figures 1 to 13 As shown, a dedicated offshore operating platform for a coil pile driver comprises a hull 1. A pile driver recess 11 is provided at the stern of the hull 1. A coil pile driver 2 and a slidable clamp mechanism 4 for the coil at the bottom of the hull are mounted in the recess 11. The slidable clamp mechanism 4 for the coil at the bottom of the hull is located below the coil pile driver 2. A crane 3 is provided in the middle of the top deck 13 of the hull 1. The pile driver recess 11 extends from the stern toward the middle of the hull 1. The coil pile driver 2 is used to press the coil 21 downward. A guardrail 12 is provided at the edge of the top deck 13 of the hull 1. The hull 1 utilizes a reinforced concrete hull with an outer steel plate and an inner composite reinforced concrete hull.

[0040] The slidable clamp mechanism 4 for the coil at the bottom of the hull includes at least two clamp push rods 41 arranged around the center of the coil 21. At least one pair of balls 44 is rotatably connected to one end of the clamp push rod 41 facing the side wall of the coil 21. Each ball 44 is located in the same plane and arranged around the centerline of the coil 21. The clamp push rod 41 slides with a push rod sleeve 49 provided on the hull 1. The slidable clamp mechanism 4 for the coil at the bottom of the hull also includes a force transmission rod 43, which is rotatably connected to a force transmission rod support 48 provided on the hull 1. The force transmission rod 43 is linked to the clamp push rod 41 through a transmission structure. In this embodiment, there are three clamp push rods 41, which are arranged around the centerline of the coil 21.

[0041] The transmission structure includes a gear 42 connected to the force transmission rod 43 and a rack 413 provided on the clamp push rod 41 , and the gear 42 is meshed with the rack 413 .

[0042] The force transmission rod 43 is equipped with a steel ring 431, with a crowbar hole 432 in the middle that mates with the crowbar 410. After inserting the crowbar 410 through the steel ring 431, a lever is manually actuated to rotate the force transmission rod 43, thereby rotating the gear 42. This causes the clamp push rod 41 to slide along the push rod sleeve 49, tightening or loosening the spiral tube 21. The clamp mechanism outer sleeve 401 is also connected to the hull 1. The rear end of the clamp push rod 41 slides inside the clamp mechanism outer sleeve 401. The push rod sleeve 49 is fixedly connected to the bracket 47, which is in turn fixedly connected to the hull 1.

[0043] The clamp push rod 41 includes a rod head 412 and a square rod body 411 connected in sequence. A rack 413 is provided on the square rod body 411. The square rod body 411 is in sliding engagement with the push rod sleeve 49. The end face of the rod head 412 is provided with at least a pair of semicircular ball grooves 414. The end face of the rod head 412 is also connected to a ball retaining cap 45 via a connecting bolt 46. The ball retaining cap 45 includes a base plate 451, on which is provided at least a pair of ball leakage holes 453. An annular ball retaining cap 452 is connected to the edge of the ball leakage hole 453. The ball 44 is located between the semicircular ball groove 414 and the ball retaining cap 452. The ball retaining cap 452 is in the shape of an annular cone, which confines the ball 44 in the semicircular ball groove 414 to prevent the ball 44 from falling out.

[0044] Both sides of the hull 1 are also connected to ship-side vertical sea wave energy collectors 5 , and the ship-side vertical sea wave energy collectors 5 are connected to a high-voltage oil power generation system 6 .

[0045] The ship's side vertical wave energy collector 5 includes a hydraulic cylinder 53 fixedly connected to the hull 1. This hydraulic cylinder 53 is movably connected to a float hydraulic connecting rod 52, which is connected to a flat float 51 via a float joint 511. The float 51 is slidably connected to a float positioning slide 56, which is attached to the hull 1 and fitted with a float stop ring 561. The hydraulic cylinder 53 is also connected to a pressure oil pipe 54 and a return oil pipe 55. The pressure oil pipe 54 is connected to a first one-way valve 541, while the return oil pipe 55 is connected to a second one-way valve 551. The float 51 is made of plastic. When there are no waves, the float 51 descends under the action of its own weight, and the hydraulic oil enters the hydraulic cylinder 53 from the return oil pipe 55. At this time, the second one-way valve 551 prevents the hydraulic oil in the hydraulic cylinder 53 from flowing back to the return oil pipe 55; when the float 51 comes into contact with the waves, it is lifted up by the waves, and the hydraulic oil is pressurized and enters the pressure oil pipe 54 and is transported to the high-pressure oil power generation system 6. At this time, the first one-way valve 541 can prevent the hydraulic oil in the pressure oil pipe 54 from flowing back to the hydraulic cylinder 53.

[0046] The high-pressure oil power generation system 6 includes a third one-way valve 61, a hydraulic oil pressure-surge tank 62, an automatic solenoid valve 64, a high-pressure hydro-generator 63, an oil drain port 65, and an oil return reservoir 66, all connected in sequence along the hydraulic oil flow path. The output of the pressure oil pipe 54 is connected to the input of the third one-way valve 61, and the oil return reservoir 66 is connected to the input of the oil return pipe 55. Hydraulic oil entering the high-pressure oil power generation system 6 drives the high-pressure hydro-generator 63, generating electricity, which is then stored in an energy storage element (e.g., a battery).

[0047] The hull 1 is equipped with a hollow cargo hold 14, a public space for personnel 16, a lounge for personnel 17, a generator room 18, a power storage and distribution room 19, and a distilled water production room 201, all located below the top deck 13. The hollow cargo hold 14, the public space for personnel 16, and the lounge for personnel 17 are all located on the middle deck. The public space for personnel 16 and the lounge for personnel 17 provide basic living quarters for construction workers. The distilled water production room 201 uses electricity generated by ocean wave energy to distill seawater, thereby achieving self-sufficiency in fresh water for the platform. The distilled water is stored in a distilled water tank. The power storage and distribution room 19 stores the electricity generated by ocean wave energy and distributes it to required locations as needed. During construction operations, the generator room 18 is the main source of electricity for the pile driver and crane.

[0048] A large bottom cargo hold 20 can also be set at the bottom of the hull 1. The hollow cargo hold 14 is connected to the large bottom cargo hold of the bottom layer, and there is enough space to accommodate the necessary construction materials such as the spiral pipe, drill bit, tools, etc. without affecting the working space of the "spiral pipe pile driver".

[0049] The top deck 13, the middle deck and the bottom cargo hold are connected by a steel stairwell 15 to meet the vertical transportation needs of personnel on the third deck of the platform.

[0050] The rotary tube pile driver 2 is arranged at the pile driver matching recess 11, which not only meets the site space requirements of the "rotary tube pile driver 2" operation, but also allows the "rotary tube pile driver 2" to be closer to the center of gravity of the hull 1, reducing the platform shaking caused by the operation of the "rotary tube pile driver" and smoothly realizing the separation of the pile and the platform after completion.

[0051] Because the vertical wave energy collector 5 on the ship's side utilizes floats 51, multiple floats 51 are positioned on either side of the hull. The rise and fall of these floats with the waves generates power for the hydraulic oil, which drives the high-pressure hydro-generator 63 to rotate and generate electricity. This provides the platform with a continuous green energy source. This energy can be used for the spiral pipe pile driver, crane, and hull power, meeting the platform's general electricity needs, fresh water needs, and supplementing some construction electricity needs. Furthermore, the floats absorb the impact of waves and the lateral pressure of the platform's sway, thereby reducing platform sway caused by wave fluctuations and other factors.

[0052] The specific cases are as follows:

[0053] Referring to the schematic diagram and specific performance requirements, we calculated and equipped a "dedicated offshore operating platform for spiral tubing pile drivers" that meets the maximum coil diameter of 2m. Its main parameters are as follows:

[0054] The length, width and height of the "rotating pipe pile driver" are: 6.6m*3m*4.5m, the maximum coil diameter is 2m, and the power is 120kw.h.

[0055] The 15T crane is 6m high, has a maximum operating radius of 15m and a power of 50kw.h.

[0056] The two-story working platform is 5m high, with the top deck measuring 33m*16.5m in length and width, and the bottom deck measuring 31.5m*10.5m in length and width.

[0057] Sea wave power generation system: 5.6m 3 There are 12 sea wave energy collectors. Based on an average wave height of 1.0m and a wave frequency of 6 seconds per time, the effective power generation is 5.22kw.h per collector, and the daily power generation is 1497kw.h.

[0058] Fuel generator: 100kw.h.

[0059] Power storage room: maximum storage capacity 300kw.h.

[0060] This "dedicated offshore operation platform for rotary tube pile digging machines" not only effectively solves the three problems of offshore construction of "rotary tube pile digging machines", but also utilizes sea wave energy to significantly save energy and improve living conditions for offshore operations.

[0061] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A dedicated offshore operation platform for a rotary tube pile driver, comprising a hull (1), characterized in that: The hull (1) is provided with a pile driver matching recess (11) at the stern of the hull, and a rotary pipe pile driver (2) and a slidable clamp mechanism (4) for the rotary pipe at the bottom of the hull are installed at the pile driver matching recess (11), and the slidable clamp mechanism (4) for the rotary pipe at the bottom of the hull is located below the rotary pipe pile driver (2); a crane (3) is provided in the middle of the top plywood (13) of the hull (1); the slidable clamp mechanism (4) for the rotary pipe at the bottom of the hull includes a centrally arranged spiral pipe (21) to At least two clamp push rods (41) are provided, and one end of the clamp push rod (41) facing the side wall of the coil (21) is rotatably connected to at least one pair of balls (44); the clamp push rod (41) is slidably matched with a push rod sliding sleeve (49) provided on the hull (1); the slidable clamp mechanism (4) of the coil at the bottom of the hull further includes a force transmission rod (43), the force transmission rod (43) is rotatably connected to a force transmission rod support (48) provided on the hull (1), and the force transmission rod (43) is rotatably connected to the force transmission rod support (48) provided on the hull (1). The transmission structure is linked to the clamp push rod (41); the transmission structure includes a gear (42) connected to the force transmission rod (43), and also includes a rack (413) provided on the clamp push rod (41), the gear (42) and the rack (413) being meshed; the clamp push rod (41) includes a rod head (412) and a square rod body (411) connected in sequence; the square rod body (411) is slidably matched with the push rod sliding sleeve (49); the end surface of the rod head (412) is provided with There is at least one pair of semicircular ball grooves (414); the end surface of the rod head (412) is further connected to a ball retaining cap (45) via a connecting bolt (46); the ball retaining cap (45) comprises a base plate (451), the base plate (451) is provided with at least one pair of ball leakage holes (453), the edges of the ball leakage holes (453) are connected to an annular ball retaining cap (452), and the ball (44) is located between the semicircular ball grooves (414) and the ball retaining cap (452).

2. The offshore operation platform for a rotary tube pile driver according to claim 1, characterized in that: The force transmission rod (43) is provided with a steel ring (431), and the middle of the steel ring (431) is provided with a crowbar through hole (432) that matches the crowbar (410).

3. The offshore operation platform for a rotary tube pile driver according to claim 1, characterized in that: Both sides of the hull (1) are also connected to ship-side vertical sea wave energy collectors (5), and the ship-side vertical sea wave energy collectors (5) are connected to a high-voltage oil power generation system (6).

4. The offshore operation platform for a rotary tube pile driver according to claim 3, characterized in that: The ship side vertical sea wave energy collector (5) comprises a hydraulic cylinder (53) fixedly connected to the hull (1); the hydraulic cylinder (53) is movably connected to a float hydraulic connecting rod (52); the float hydraulic connecting rod (52) is connected to a float (51) via a float joint (511); the float (51) is flat; the float (51) is slidably connected to a float positioning slide rod (56); the float positioning slide rod (56) is connected to the hull (1); a float limiting ring (561) is provided on the float positioning slide rod (56); the hydraulic cylinder (53) is also connected to a pressure oil pipe (54) and a return oil pipe (55); the pressure oil pipe (54) is connected to a first one-way valve (541); and the return oil pipe (55) is connected to a second one-way valve (551).

5. The offshore operation platform for a rotary tube pile driver according to claim 4, characterized in that: The high-pressure oil power generation system (6) comprises a third one-way valve (61), a hydraulic oil pressure stabilizing tank (62), an automatic solenoid valve (64), a high-pressure hydro-generator (63), an oil discharge port (65) and an oil return tank (66) which are sequentially connected along the flow direction of the hydraulic oil; the output end of the pressure oil pipe (54) is connected to the input end of the third one-way valve (61), and the oil return tank (66) is connected to the input end of the oil return pipe (55).

6. The offshore operation platform for a rotary tubing pile driver according to claim 1, characterized in that: The hull (1) is provided with a hollow cargo hold (14) located below the top plywood (13), a personnel public space (16), a personnel lounge (17), a generator room (18), a power storage and distribution room (19) and a distilled water production room (201).

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