CN-121976541-A - Deep water assembled screw anchor installation recovery plant

CN121976541ACN 121976541 ACN121976541 ACN 121976541ACN-121976541-A

Abstract

The invention belongs to an offshore anchoring foundation construction device, and discloses deepwater assembly type spiral anchor installation and recovery equipment which comprises a torque resisting mechanism and a power transmission mechanism, wherein the torque resisting mechanism mainly provides torsion resistance, the power transmission mechanism mainly provides pressure and torque required by installation and recovery, a novel installation mode taking spiral anchor torsion resistance as a main compression resistance as an auxiliary mode is realized, and simultaneously the characteristic that a sedimentation barrel can be installed underwater through negative pressure is fully considered. The invention reduces the volume and weight of single parts, is more practical and efficient screw anchor installation equipment in deep water sea areas, and can realize the installation of long-connecting-rod screw anchors. Meanwhile, the power transmission mechanism is recycled through hoisting, the torque resisting mechanism pumps water into the sedimentation barrel through the vacuum pump, pumps air and pressurizes the water for recycling, recycling of the installation equipment is achieved, production cost is reduced, and production efficiency is improved.

Inventors

WANG LE
ZHANG LINRUI
Ji Zhaobin
LI CANHUI
LIU RUN

Assignees

天津大学

Dates

Publication Date: 20260505
Application Date: 20260204

Claims (10)

1. The deepwater assembled screw anchor installation and recovery device is characterized by comprising a torque resisting mechanism and a power transmission mechanism; the anti-torque mechanism comprises a plurality of sedimentation barrels, wherein a vacuum pump and a drain valve are arranged on the top cover of each sedimentation barrel, adjacent sedimentation barrels are connected through a connecting beam, a split weight box is arranged on the connecting beam, the sedimentation barrels are used for realizing the purpose that the anti-torque mechanism sinks to a soil body and is fixedly arranged at a mounting position, and a plurality of blades are arranged on the outer wall of each sedimentation barrel and are used for resisting torque; a butt joint top plate is arranged right above the sedimentation barrels, and each sedimentation barrel is connected with the butt joint top plate through a diagonal brace respectively; The power transmission mechanism comprises a rotary motor and two lifting motors which are arranged in a straight line, wherein the two lifting motors are respectively positioned at two sides of the rotary motor, the rotary motor is connected with a rotary speed reducer arranged below the rotary motor, and the lifting motor is connected with a lifting speed reducer arranged below the rotary speed reducer; The lifting speed reducer is connected with a lifting screw rod, the rotating speed reducer is connected with a rotating shaft, the bottom of the rotating shaft and the bottom of the lifting screw rod are both connected with a lifting bottom plate, the top and the bottom of the lifting screw rod are respectively connected with the lifting top plate and the lifting bottom plate through lifting screw rod supporting seats, the lifting screw rod supporting seats are respectively fixed with the lifting top plate and the lifting bottom plate, the lifting screw rod can rotate relative to the lifting screw rod supporting seats and does not axially displace, the top and the bottom of the rotating shaft are respectively connected with the lifting top plate and the lifting bottom plate through rotating shaft supporting seats, the rotating shaft supporting seats are respectively fixed with the lifting top plate and the lifting bottom plate, and the rotating shaft can rotate relative to the rotating shaft supporting seats and does not axially displace; A lifting platform fixing plate is arranged between the lifting top plate and the lifting bottom plate, the lifting platform fixing plate is provided with a through hole for the rotation shaft to pass through, and a screw nut for engaging the lifting screw is fixed on the lifting platform fixing plate, and the screw nut and the lifting screw form a rotary screw pair; the lifting top plate and the lifting bottom plate are supported by a plurality of lifting guide posts, and the lifting guide posts penetrate through the lifting platform fixing plate and are connected with the lifting platform fixing plate through lifting guide sleeves, so that the lifting guide posts can vertically move relative to the lifting platform fixing plate; The lifting platform fixing plate is provided with a locking mechanism second component which is used for being in butt joint and fixing with the locking mechanism first component so as to realize the torque-resistant connection between the butt joint top plate and the lifting platform fixing plate; After the butt-joint top plate is connected with the lifting platform fixing plate, when the lifting motor drives the lifting screw rod to rotate forwards, pressure is generated and transmitted to the lifting bottom plate through the rotation motion of the lifting screw rod relative to the screw rod nut, so that the lifting bottom plate descends relative to the lifting platform fixing plate under the action of the pressure; The bottom end of the rotating shaft penetrates through the rotating shaft supporting seat and is connected with the screw anchor adapter, the screw anchor adapter is driven to rotate through the rotating shaft, the screw anchor adapter is positioned below the lifting bottom plate, and the screw anchor adapter can be locked with the screw anchor through forward rotation and reverse rotation after being axially inserted into the screw anchor.
2. The deepwater assembly type screw anchor installation and recovery device according to claim 1, wherein a plurality of sedimentation barrels are uniformly distributed in a circumferential direction on a horizontal plane, and a plurality of blades are uniformly distributed in the circumferential direction on the outer wall of the sedimentation barrel, and each blade extends in the axial direction of the sedimentation barrel in the vertical direction and extends in the radial direction of the sedimentation barrel in the horizontal direction.
3. The deepwater fabricated helical anchor installation and recovery device according to claim 1, wherein the connecting beams are arranged in the radial direction of two adjacent settling barrels, and the ends of the connecting beams are fixed at the top of the side walls of the settling barrels.
4. The deepwater assembly type screw anchor installation and recovery device according to claim 1, wherein the butt-joint top plate is a circular plate body with a notch, the notch is used for enabling the screw anchor to enter a space between a plurality of settlement barrels, the vertical distance between the butt-joint top plate and the settlement barrels is larger than the total length of the screw anchor, and the length and the inclination angle of all inclined supports are the same.
5. The deepwater assembly type screw anchor installation and recovery device according to claim 1, wherein a top cover is arranged on a box body of the split type weight box, the top cover and the box body are sealed before launching and are tightly matched, and a sub-cabin is arranged inside the split type weight box to realize uniform loading.
6. The deep water assembly type screw anchor installation and recovery equipment according to claim 1, wherein the lifting guide posts are fixedly connected with the lifting top plate and the lifting bottom plate respectively so as to keep the distance between the lifting guide posts and the lifting top plate unchanged, and the lifting guide posts are uniformly distributed relative to the lifting top plate and the lifting bottom plate respectively.
7. The deepwater assembly type screw anchor installation and recovery device according to claim 1, wherein a motor waterproof cover is arranged outside a rotating motor, a lifting motor, a rotating speed reducer and a lifting speed reducer for protection, the motor waterproof cover is fixed on a lifting top plate, an organ cover is respectively arranged between the lifting top plate and a lifting platform fixing plate as well as between the lifting platform fixing plate and a lifting bottom plate, and the two organ covers are used for covering the rotating shaft, the lifting screw, the rotating shaft supporting seat, the lifting screw supporting seat, the lifting guide post and the lifting guide sleeve.
8. The deepwater assembly type screw anchor installation and recovery device according to claim 1, wherein a first hanging ring is arranged on the top surface of the butt joint top plate, and a second hanging ring is arranged on the top surface of the lifting top plate.
9. The deep water assembled screw anchor installation recovery device according to claim 1, wherein the first component of the locking mechanism is a butt joint hole, a plurality of butt joint holes penetrate through the butt joint top plate vertically, the second component of the locking mechanism is an adjustable positioning pin, the adjustable positioning pins are arranged at the bottom of the lifting platform fixing plate, the positions and structures of the adjustable positioning pins and the butt joint holes are matched, and the adjustable positioning pins can be inserted into the butt joint holes one by one and locked after being inserted into the butt joint holes.
10. The deepwater fabricated helical anchor installation and retrieval device of claim 1, wherein the helical anchor adapter has two pins, each pin having a wider head and a narrower neck, the two pins being adapted to mate with two arcuate wedge openings of a helical anchor; The two arc-shaped wedge-shaped openings are symmetrically distributed in a 180-degree rotation way, and each arc-shaped wedge-shaped opening is integrally arc-shaped and comprises an open end and a closed end, wherein the open end and the closed end are in smooth transition; the plug of the screw anchor adapter moves along the axial direction towards the direction close to the arc-shaped wedge-shaped opening, so that the plug enters the arc-shaped wedge-shaped opening from the open end, and then the plug is screwed into the closed end from the open end through rotation; The plug of the screw anchor adapter moves along the axial direction towards the direction away from the arc-shaped wedge-shaped opening, so that the plug is separated from the arc-shaped wedge-shaped opening from the opening end.

Description

Deep water assembled screw anchor installation recovery plant Technical Field The invention belongs to an offshore anchoring foundation construction device, and particularly relates to installation recovery equipment for a screw anchor. Background In open sea deepwater areas with wide space, less limited conditions and richer wind energy resources, floating wind power is utilized to develop clean renewable offshore wind energy resources, and the floating wind power system has become an important strategic support for energy structure transformation in China. However, the core problem of impeding the efficient, low cost and large-scale development of floating wind power is the high cost. The anchor foundation is used as a key part for ensuring that the floating wind power platform can survive under extreme sea conditions, and the installation cost of the anchor foundation is relatively high in total investment. Therefore, the installation cost of the anchoring foundation is reduced, and the method is one of key strategies for improving the floating wind power investment benefit of the open sea deepwater area and promoting the commercialized development of the floating wind power investment benefit. The screw anchor is a steel anchoring foundation composed of pile body connecting rods and screw blades, and the appearance characteristics enable the screw anchor to have the characteristic of high bearing capacity under unit steel consumption, so that the cost of the anchoring foundation can be reduced. The conventional screw anchor installation equipment is generally small in torsion resistance, is difficult to meet the requirements of deep sea installation in technical fields such as electric equipment and the like, and is not suitable for installing large-scale screw anchors in deep sea. Disclosure of Invention The invention aims to design the deepwater assembled screw anchor installation recovery equipment, which can realize modularized assembly and repeated utilization, has better torsion resistance, lower cost and more convenient use, and greatly reduces the production cost and improves the production efficiency for actual open sea deepwater engineering. In order to achieve the above object, the present invention is realized by the following technical scheme: the invention provides deepwater assembly type screw anchor installation and recovery equipment, which comprises a torque resisting mechanism and a power transmission mechanism; the anti-torque mechanism comprises a plurality of sedimentation barrels, wherein a vacuum pump and a drain valve are arranged on the top cover of each sedimentation barrel, adjacent sedimentation barrels are connected through a connecting beam, a split weight box is arranged on the connecting beam, the sedimentation barrels are used for realizing the purpose that the anti-torque mechanism sinks to a soil body and is fixedly arranged at a mounting position, and a plurality of blades are arranged on the outer wall of each sedimentation barrel and are used for resisting torque; a butt joint top plate is arranged right above the sedimentation barrels, and each sedimentation barrel is connected with the butt joint top plate through a diagonal brace respectively; The power transmission mechanism comprises a rotary motor and two lifting motors which are arranged in a straight line, wherein the two lifting motors are respectively positioned at two sides of the rotary motor, the rotary motor is connected with a rotary speed reducer arranged below the rotary motor, and the lifting motor is connected with a lifting speed reducer arranged below the rotary speed reducer; The lifting speed reducer is connected with a lifting screw rod, the rotating speed reducer is connected with a rotating shaft, the bottom of the rotating shaft and the bottom of the lifting screw rod are both connected with a lifting bottom plate, the top and the bottom of the lifting screw rod are respectively connected with the lifting top plate and the lifting bottom plate through lifting screw rod supporting seats, the lifting screw rod supporting seats are respectively fixed with the lifting top plate and the lifting bottom plate, the lifting screw rod can rotate relative to the lifting screw rod supporting seats and does not axially displace, the top and the bottom of the rotating shaft are respectively connected with the lifting top plate and the lifting bottom plate through rotating shaft supporting seats, the rotating shaft supporting seats are respectively fixed with the lifting top plate and the lifting bottom plate, and the rotating shaft can rotate relative to the rotating shaft supporting seats and does not axially displace; A lifting platform fixing plate is arranged between the lifting top plate and the lifting bottom plate, the lifting platform fixing plate is provided with a through hole for the rotation shaft to pass through, and a screw nut for engaging the lifting screw is fixed on the lifting platfo