Automatic clearing device for attachments of pipe-barrel-shaped ocean component

Abstract

The invention discloses an attachment removing and protecting device for a tubular ocean foundation structure. The attachment removing and protecting device comprises a hoop detachably arranged on a supporting column in a sleeving mode, a rolling piece arranged on the hoop in the circumferential direction, a spiral pushing piece obliquely fixed to the hoop and an annular scraping piece arranged on the hoop. The overall apparent density of the cleaning protection device is close to that of seawater by adjusting matching of materials with different densities on the cleaning protection device, so that the device is in a suspended state in the seawater; kinetic energy of waves is used for pushing the device to move in the length direction of the device, a power system and a control system are not needed, the removing protection device can automatically ascend, descend and rotate on the supporting column so as to automatically peel off and remove attachments on the surface of the supporting column, manual operation is not needed, and the labor cost and the working risk can be greatly reduced. Meanwhile, the device is simple in structure, small in size, low in cost, convenient to assemble and disassemble and capable of freely and randomly moving within the effective length of the tubular supporting column and the component, and the removal efficiency of attachments is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning attachments on the surface of marine infrastructure, in particular to an attachment cleaning and protection device for a tubular marine infrastructure. Background Art

[0002] In recent years, marine infrastructure and large marine equipment are moving from offshore to deep sea, and a large number of tubular structural components and connecting parts are used. Due to the excellent mechanical properties of tubular structures in marine environments, the best geometric characteristics to resist wind and wave impacts, and economical and convenient manufacturing efficiency, they are widely used in actual projects, such as bridge columns of cross-sea bridges, pipe piles of high-pile docks, various pipelines of drilling platforms, and vertical and horizontal pipe rods of marine floating structures.

[0003] However, marine biofouling is a common problem faced by marine structures. Whether it is a steel structure or a concrete structure, once it is placed in seawater, a certain number of marine organisms will be attached to it soon, and barnacles, shellfish and algae are common marine attachments. The number of marine organisms attached to the structure will continue to increase over time, which will greatly increase the load on the structure and cause certain biological corrosion to the structure. For marine floating structures, the impact of biological attachment is more serious, which will not only affect the service performance of the structure, but may even cause the sinking of the floating structure. Therefore, it is very necessary to remove marine attachments on the structure in a timely manner.

[0004] Currently, there is a high-speed jet flushing method for cleaning marine structure attachments. The power device is relatively complex, the cost is high, and it is very difficult to clean underwater structures. Attachments can also be removed manually, but this is a time-consuming and labor-intensive task with low efficiency and is very dangerous.

[0005] The prior art publication number CN112832299A discloses a device for cleaning attachments on the surface of offshore pile foundations, and relates to the technical field of cleaning attachments on the surface of pile foundations. The present invention includes at least one pile foundation provided with a limiting groove distributed along the axial direction, and a driving mechanism is fixedly installed on the top of the pile foundation; a rotating member with the bottom end located outside is movably installed in the driving mechanism, and a motor for driving the rotating member to rotate is installed on the driving mechanism; a cleaning part is movably connected to the hinge seat on the bottom end of the rotating member, and the other end of the cleaning part is movably connected to the counterweight part; the counterweight part is sleeved on the outside of the pile foundation, and a clamping seat that cooperates with the limiting groove is provided on the inner side of the pile foundation; the cleaning part moves around the inner side of the pile foundation after installation, and a cleaning mechanism that fits the surface of the pile foundation is provided on the moving surface of the cleaning part. The present invention removes shellfish attached to the surface of the pile foundation by connecting the cleaning part to the rotating member and providing a cleaning mechanism on the cleaning part.

[0006] The above-disclosed offshore pile foundation surface attachment cleaning device mainly uses a motor to control the cleaning structure thereon to clean the pile foundation surface, and cannot rely on the ups and downs of the waves to make the cleaning device perform lifting and rotation on the pile foundation. Therefore, the present application proposes an attachment cleaning and protection device for a tubular marine foundation structure. Summary of the invention

[0007] The present invention provides a device for removing and protecting attachments of a tubular marine foundation structure, aiming to solve the problem that the above-mentioned device for cleaning attachments on the surface of offshore pile foundations cannot rely on the ups and downs of waves to make the cleaning device perform lifting and lowering movement and rotation on the pillar to clean the attachments on the pillar surface.

[0008] To achieve the above-mentioned purpose, the present invention provides a device for removing and protecting attachments from a tubular marine infrastructure, comprising: A hoop, which is detachably mounted on the support and suspended in the water; A rolling element is arranged on the hoop along the circumferential direction, so that the hoop is rolled on the support; The screw push piece is fixed on the hoop obliquely, so that the hoop can move up and down and rotate on the support; Annular scrapers are provided at the upper and lower ends of the hoop to clean the attachments on the surface of the pillar; The hoop is lifted and lowered on the pillar by the ups and downs of the waves, and under the action of the spiral pusher, the ups and downs of the waves push the hoop to rotate and lift on the pillar, so that the annular scraper on the hoop can axially and circumferentially remove the attachments on the pillar.

[0009] Preferably, the hoop is a multi-layer structure, and the multi-layer hoop includes a first hoop and a second hoop, one end of the first hoop is hinged to one end of the second hoop, and the other end of the first hoop is detachably connected to the other end of the second hoop through a locking member. The locking member is a plug rod, and the other ends of the first hoop and the second hoop are both provided with a plug hole. The first hoop and the second hoop are closed so that the plug holes on them are vertically facing each other, and one end of the plug rod is connected to the nut by inserting the plug hole to lock the closed first hoop and the second hoop.

[0010] Preferably, there are multiple spiral pushers, and the material of the spiral pushers is a buoyancy material; the spiral pushers are evenly arranged on the upper and lower parts of the hoop along the circumferential direction. It also includes a spiral scraper, and the two ends of the spiral scraper are respectively fixedly connected to the adjacent annular strips on the hoop, and the middle part of the spiral pusher is connected to the spiral scraper. The spiral scraper is embedded with the spiral pusher.

[0011] Preferably, the rolling element is a ball bearing or a bull's eye bearing, so that the hoop can stably move on the pillar. The multi-layer hoop is provided with a plurality of annular strips, and the plurality of annular strips are connected by a connecting rod. The annular scraper is provided at the upper and lower ends of the hoop, and the annular scraper is uniformly provided with saw teeth along the circumferential direction.

[0012] Compared with the prior art, it has the following beneficial effects: (1) The present application adjusts the combination of materials of different densities on the device to make its overall apparent density close to that of seawater, so that the device is suspended in the seawater. No power system or control system is required, and the abundant wave energy in the ocean is used to realize the automatic lifting and rotation of the cleaning protection device on the pillar, so as to automatically peel off and remove the attachments on the surface of the pillar structure, without the need for manual operation, which can greatly reduce labor costs and work risks.

[0013] (2) The cleaning and protection device of the present application has a simple structure, a small size, a low cost, is easy to load and unload, and has low related investment. It can move freely and randomly within the effective length of the tubular support and components, and can effectively improve the efficiency of cleaning the attachments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 A schematic diagram of a device for removing and protecting attachments from a tubular marine infrastructure according to the present application; Figure 2 A schematic diagram of another embodiment of a device for removing and protecting attachments from a tubular marine infrastructure of the present application; Figure 3 For this application, a schematic diagram of the protective device installed on the column is cleared; Figure 4 The front view of the protective device is cleared for this application; Figure 5 A front view of another embodiment of the protection device for clearing the present application; Figure 6 A schematic diagram of the first hoop and the second hoop of the present application; Figure 7 This is a schematic diagram of the cooperation between the spiral pusher and the spiral scraper of the present application; Figure 8 A schematic diagram of an embodiment of a spiral pusher of the present application; Fig. 9 This is a schematic diagram of another embodiment of the spiral pusher of the present application.

[0016] Figure numerals: 1-hoop; 11-first hoop; 12-second hoop; 13-locking piece; 14-nut; 15-annular strip; 16-connecting rod; 2-rolling piece; 3-screw push piece; 4-annular scraper; 41-sawtooth; 42-annular scraper; 5-pillar; 6-spiral scraper. DETAILED DESCRIPTION

[0017] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows: Example: like Figures 1 to 7 As shown, the present invention provides a device for removing and protecting attachments of a tubular marine infrastructure, comprising: The hoop 1 is detachably mounted on the support 5 and suspended on the water surface to float with the waves; The rolling element 2 is arranged on the hoop 1 along the circumferential direction, so that the hoop 1 is rolled on the support 5; The two ends of the screw pusher 3 are fixed obliquely to the hoop 1 by screws, so that the hoop 1 can be lifted and rotated on the support 5; The annular scraper 4 is provided on the hoop 1 to remove the attachments on the surface of the support 5; The hoop 1 is raised and lowered on the pillar 5 by the ups and downs of the waves, and under the action of the spiral pusher 3, the ups and downs of the waves push the hoop 1 to rotate and rise on the pillar 5, so that the annular scraper 4 on the hoop 1 can axially and circumferentially remove the attachments on the pillar 5.

[0018] The weight and volume of each component of the cleaning and protection device must be accurately measured, and weighting or weight reduction should be performed when necessary to make the comprehensive apparent density of the cleaning and protection device equivalent to the apparent density of seawater. It is precisely because of this characteristic that the movement of the device in seawater mainly depends on the movement of waves, which is random and multi-directional, and eliminates the interference of unidirectional buoyancy and gravity.

[0019] The above device can be installed on the surface of vertical, horizontal and oblique tubular structural components. Under the random ups and downs and impacts of waves, the attachment removal protection device can rise and fall with the waves, move left and right, and rotate around the axis of the tubular component, thereby removing the attachments.

[0020] As another embodiment of the present application, Figure 5 and Figure 6As shown, the hoop 1 of the present application is a multi-layer structure, and the multi-layer hoop 1 includes a first hoop 11 and a second hoop 12. One end of the first hoop 11 is hinged to one end of the second hoop 12, and the other end of the first hoop 11 is detachably connected to the other end of the second hoop 12 through a locking piece 13.

[0021] See also Figure 2 The locking member 13 of the present application is an insert rod, and the other ends of the first hoop 11 and the second hoop 12 are both provided with insertion holes. The first hoop 11 and the second hoop 12 are closed so that the insertion holes thereon are vertically opposite to each other, and one end of the insert rod is connected with the nut 14 by inserting into the insertion hole to lock the closed first hoop 11 and the second hoop 12.

[0022] As another embodiment of the present application, Figure 7 and Figure 8 As shown, the present invention has multiple spiral pushers 3, and the material of the spiral pushers 3 is a buoyancy material; further, the spiral pushers 3 are made of wood material or lightweight materials such as foam plastics and plastics. The spiral pushers 3 are evenly arranged at the upper and lower parts of the hoop 1 along the circumferential direction. Figure 1 and Fig. 9 The spiral pushers 3 are evenly distributed on the hoop 1 along the circumferential direction; there are 3-5 spiral pushers 3, and when there are 4 spiral pushers 3, they are evenly distributed on the hoop 1 along the circumferential direction at a 90-degree angle. Further, the two ends of the spiral pushers 3 of the present application protrude from the upper and lower ends of the hoop 1.

[0023] See also Figure 2 and Figure 7 The present application also includes a spiral scraper 6, the two ends of which are fixedly connected to the adjacent annular strips 15 on the hoop 1, and the middle of the spiral pusher 3 is connected to the spiral scraper 6. By providing the spiral scraper 6, the hoop 1 can circumferentially scrape the surface of the tubular support 5 and the component when rotating on the surface of the tubular support 5 and the component, further improving the efficiency of removing attachments of the protective device. Furthermore, the spiral scraper 6 is made of corrosion-resistant metal material. When the spiral pusher 3 of the present application is Figure 8 As shown, the spiral pushers 3 distributed up and down are all connected to the spiral scraper 6; when the spiral pushers 3 of the present application are Fig. 9 As shown, each spiral pusher 3 is connected to two spiral scrapers 6, so that each layer of the ferrule 1 is provided with spiral scrapers 6 equal to the number of spiral pushers 3, and the number of spiral scrapers 6 on the entire ferrule 1 is twice that of the spiral pushers 3.

[0024] See also Figure 7 The spiral scraper 6 of the present application is engaged with the spiral pusher 3 to increase the contact area between the waves and the spiral scraper 6, so that the hoop 1 can respond quickly to the ups and downs of the waves.

[0025] See also Figure 4 and Figure 5 The multi-layer hoop 1 of the present application is provided with a plurality of annular strips 15, and the plurality of annular strips 15 are connected by connecting rods 16. The present application adopts a hoop 1 of an annular frame structure composed of annular strips 15 and a spiral pusher 3. The comprehensive apparent density of the attachment removal protection device obtained with the hoop 1 of the annular frame structure as the main body is close to the density of seawater. The device can thus be freely suspended along the tube component in the seawater, thereby overcoming the influence of unidirectional driving forces such as gravity and buoyancy, and providing feasibility for the removal protection device to randomly and multi-directionally move up and down, left and right, and obliquely.

[0026] See also Figure 2 The rolling element 2 is a ball bearing or a bull's eye bearing, so that the hoop 1 can be stably rolled, lifted and rotated on the support 5 through the ball bearing or the bull's eye bearing.

[0027] Furthermore, universal bull's eye bearings are installed on the annular strip 15 at a certain interval (the angle between two adjacent points does not exceed 45 degrees), that is, no less than 8 bull's eye bearings are installed on each annular strip 15, and the bull's eye bearings have protruding steel balls that contact with the tubular support 5 and the surface of the component, which can ensure the flexibility and stability of the device during movement. The number and installation position of the universal bull's eye bearings should pay attention to symmetry and balance to ensure that the device can move up and down and left and right smoothly. Furthermore, the annular strip 15 is made of stainless steel.

[0028] As another embodiment of the present application, Figure 4 As shown, the annular scraper 4 of the present application is arranged at the upper and lower ends of the hoop 1, and the annular scraper 4 is evenly provided with saw teeth 41 along the circumferential direction, so that the attachments located on the surface of the pillar 5 can be removed by setting the saw teeth 41.

[0029] Further, see Figure 5 The annular scraper 4 of the present application can also be provided with an annular scraper 42 to replace the saw teeth 41. The annular scraper 42 is a planar blade structure. The annular scraper 42 can also be a structure with one end high and the other end low, so that when the hoop 1 rotates, the annular scraper 42 can clean the attachments on the outer surface of the pillar 5.

[0030] Since the ferrule 1 is composed of two semicircular first ferrules 11 and second ferrules 12, its annular scraper 4 is also composed of two semicircular first annular scrapers and second annular scrapers. In order to facilitate the installation of the inserted rod, the annular scraper 4 composed of the first annular scraper and the second annular scraper is provided with a notch.

[0031] The working principle of the present application is as follows: when in use, the nut 14 at one end of the plug rod on one side of the hoop 1 is loosened and the plug rod is pulled out, so that the hoop 1 is opened and then put on the pillar 5 to close, and then the plug rod is inserted into the insertion hole and connected with the nut 14 with waterproof performance to fix the hoop 1 on the pillar 5; the hoop 1 after installation is suspended on the water surface under the action of its own buoyancy; when the above-mentioned cleaning protection device is installed on the vertical tube pillar 5, since the influence of gravity and buoyancy on the device is eliminated, the cleaning protection device can rise and fall on the pillar 5 with the ups and downs of the waves under the action of the waves, and the waves simultaneously drive the spiral pusher 3 to make the cleaning protection device rotate around the pillar 5. When the cleaning protection device is installed on the horizontal tubular member, the wave drives the spiral pusher 3 to rotate and push the hoop 1 to move horizontally to a certain extent.

[0032] During the sliding, moving and rotating process of the cleaning protection device, the annular and oblique annular scrapers 4 play a role in cleaning the attachments on the surface of the pillar 5 and the component. Since a plurality of universal bull's eye bearings are installed on the annular strip 15, the protruding steel balls therein roll against the outer surface of the pillar 5, so a certain gap is maintained between the annular scraper 4 and the surface of the pillar 5, so that the sleeve 1 will not damage the tubular pillar 5 and the component itself during the sliding process.

[0033] When the length of the tubular pillar 5 and the component in the marine structure is very long, the tubular pillar 5 and the component can be divided into two or more sections, and accordingly, each section of the tubular pillar 5 or the component is equipped with an attachment removal protection device, and each removal protection device is responsible for cleaning the attachments of a section of the tubular pillar 5 or the component. The tubular structure of the present application can be a basic structure (pillar) for underwater support, or a reinforcing member (tubular member) for underwater reinforcing structure, wherein the tubular member is mostly a reinforcing member arranged horizontally or inclined in the water.

[0034] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. A device for removing and protecting attachments from a tubular marine infrastructure, characterized in that: include: A hoop (1) is detachably mounted on the support (5) and suspended in water; A rolling element (2) is arranged on the hoop (1) along the circumferential direction, so that the hoop (1) is rolled on the support (5); A screw pusher (3) is fixed on the sleeve (1) at an angle so as to enable the sleeve (1) to perform lifting and rotating movements on the support (5); An annular scraper (4) is provided on the hoop (1); The hoop (1) is lifted and lowered on the pillar (5) by the ups and downs of the waves, and under the action of the spiral pusher (3), the ups and downs of the waves push the hoop (1) to rotate and lift on the pillar (5), so that the annular scraper (4) on the hoop (1) removes the attachments on the pillar (5) in the axial and circumferential directions; It also comprises a spiral scraper (6), the two ends of which are respectively fixedly connected to adjacent annular strips (15) on the hoop (1), and the middle of the spiral pusher (3) is connected to the spiral scraper (6); the spiral scraper (6) is engaged with the spiral pusher (3).

2. The attachment removal and protection device for a tubular marine infrastructure according to claim 1, characterized in that: The hoop (1) is a multi-layer structure, comprising a first hoop (11) and a second hoop (12), one end of the first hoop (11) being hinged to one end of the second hoop (12), and the other end of the first hoop (11) being detachably connected to the other end of the second hoop (12) via a locking member (13).

3. The attachment removal and protection device for a tubular marine infrastructure according to claim 2, characterized in that: The locking member (13) is an insertion rod, and the other ends of the first hoop (11) and the second hoop (12) are both provided with insertion holes. The first hoop (11) and the second hoop (12) are closed so that the insertion holes thereon are vertically aligned, and one end of the insertion rod is inserted into the insertion hole and connected to the nut (14) to lock the closed first hoop (11) and the second hoop (12).

4. The attachment removal and protection device for a tubular marine infrastructure according to claim 2, characterized in that: There are a plurality of spiral pushers (3), and the material of the spiral pushers (3) is a buoyancy material; the spiral pushers (3) are evenly distributed at the upper part and the lower part of the hoop (1) along the circumferential direction.

5. The attachment removal and protection device for a tubular marine infrastructure according to claim 2, characterized in that: There are a plurality of spiral pushers (3), and the material of the spiral pushers (3) is a buoyancy material; the spiral pushers (3) are evenly arranged on the hoop (1) along the circumferential direction.

6. The attachment removal and protection device for a tubular marine infrastructure according to claim 1, characterized in that: The rolling element (2) is a ball bearing or a bull's eye bearing.

7. The attachment removal and protection device for a tubular marine infrastructure according to claim 1, characterized in that: The annular scraper (4) is arranged at the upper and lower ends of the hoop (1), and saw teeth (41) are evenly distributed along the circumference of the annular scraper (4).

8. The attachment removal and protection device for a tubular marine infrastructure according to claim 1, characterized in that: The annular scraper (4) is arranged at the upper and lower ends of the ferrule (1), and an annular scraper (42) is arranged on the annular scraper (4).

9. The attachment removal and protection device for a tubular marine infrastructure according to claim 1, characterized in that: A plurality of annular strips (15) are provided on the multi-layer ferrule (1), and the plurality of annular strips (15) are connected via a connecting rod (16).

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