An automatic cleaning and maintenance device and method for underwater cylindrical piles of offshore structures

Abstract

The present invention relates to the technical field of underwater working devices, and specifically to an automatic cleaning and maintenance device and method for underwater cylindrical pile bodies of offshore buildings. The device includes a carrying system; a climbing system disposed on the carrying system for driving the device to move up and down; a cleaning system disposed on the carrying system for cleaning the underwater cylindrical pile body of the building; and a coating system disposed on the carrying system for coating the coating film on the underwater cylindrical pile body of the building in a spiral descending manner during the process of the climbing system driving the device to move downward along the pile body. After the device of the present application is installed on the pile body of the building, the pile body can be cleaned by itself, and the pile body can be coated for protection after cleaning. The entire process does not require manual underwater operations. After cleaning and coating, the pile body can be kept clean for a long time, and the pile body can be isolated from seawater, thereby preventing damage to the pile body structure caused by the attachment of marine organisms and environmental corrosion.

Description

Technical Field

[0001] The invention relates to the technical field of underwater working devices, in particular to an automatic cleaning and maintenance device and method for an underwater cylindrical pile body of an offshore building. Background Art

[0002] Steel pipe piles or concrete piles are important components of offshore structures and face serious corrosion problems in the marine environment. Under the action of strong electrolyte seawater solutions containing various ions, the pile structure of underwater buildings is prone to electrochemical corrosion. The attachment of microorganisms in the marine environment also poses a threat to the pile structure. Some microorganisms can produce highly corrosive substances, which accelerate the corrosion of the pile. To deal with these problems, the pile body needs to be cleaned, the rust on the pile body surface and the attached marine organisms need to be removed, and a protective layer needs to be applied to isolate the pile body from the external environment.

[0003] Existing pile cleaning and protection measures have great shortcomings:

[0004] First, the existing pile cleaning device cannot perform the underwater cleaning task well;

[0005] Second, the existing pile cleaning device cannot provide protection for the pile body after cleaning it, so the pile body is still exposed to the environment and continues to be corroded by seawater and attached by marine organisms;

[0006] Third, the electrochemical protection method among the underwater pile protection measures of existing buildings cannot prevent the attachment of marine organisms. Methods such as coating protection and metal thermal spraying that add a protective layer to the pile body have durability problems and are prone to failure after encountering external force damage such as collision. There is also a lack of methods to repair the coating on the serving pile body. Summary of the invention

[0007] In order to solve the above problems, the present invention provides an automatic cleaning and maintenance device for an underwater cylindrical pile of an offshore structure, comprising:

[0008] Carrying system;

[0009] A climbing system provided on the carrying system and used to drive the device to move up and down;

[0010] A cleaning system provided on the carrying system for cleaning the underwater cylindrical pile of the building;

[0011] A covering system is arranged on the carrying system, and is used to cover the covering film on the underwater cylindrical pile of the building in a spiral descending manner when the climbing system drives the device to move downward along the pile body.

[0012] On the basis of the above scheme, the carrying system includes a plurality of support columns, a first annular bracket, a second annular bracket and a closing mechanism;

[0013] The support column includes a main support column, a secondary support column and a plurality of auxiliary support columns;

[0014] The ends of the first annular bracket and the second annular bracket are sleeved on the main support column, and the opening and closing of the first annular bracket and the second annular bracket around the main support column are controlled by a closing mechanism;

[0015] The secondary support column is fixed to an end of the second annular bracket away from the main support column.

[0016] On the basis of the above scheme, the closing mechanism includes a first motor, an A gear driven by the first motor, and a B gear used in conjunction with the A gear;

[0017] The first motor is fixed on the second annular bracket, and the B gear is fixed on the end of the first annular bracket (12) and sleeved on the main support column.

[0018] On the basis of the above scheme, the mounting system further includes a locking mechanism, which includes a second motor fixed to an end of the first annular bracket away from the main support column, a C gear driven by the second motor, a D gear used in conjunction with the C gear, and a locking hook rotatably connected to the first annular bracket through a pin shaft and used in conjunction with the secondary support column;

[0019] The D gear is arranged at the end of the locking hook through a pin shaft.

[0020] On the basis of the above scheme, the climbing system includes at least two climbing system groups arranged along the length direction of the pile body, each climbing system group includes at least three climbing mechanisms surrounding the circumference of the pile body, and the climbing mechanism includes a climbing mechanism for climbing and two telescopic mechanisms for adjusting the pressure between the climbing mechanism and the underwater cylindrical pile body of the building through a rack, and the two telescopic mechanisms are respectively located on both sides of the climbing mechanism.

[0021] On the basis of the above scheme, the climbing mechanism includes a third motor for providing power for climbing, a first bevel gear driven by the third motor, a second bevel gear used in conjunction with the first bevel gear, and a climbing wheel driven to rotate by the second bevel gear through a transmission belt;

[0022] A climbing mechanism bracket is fixed on the third motor, and a bracket plate for mounting the second bevel gear and a mounting frame for mounting the climbing wheel are fixedly connected to the climbing mechanism bracket; rack joints for fixing the rack are respectively arranged on both sides of the mounting frame.

[0023] Based on the above scheme, the telescopic mechanism includes a telescopic mechanism bracket for fixing the telescopic mechanism on the support column, and an E gear fixed on the telescopic mechanism bracket for driving the E gear through a fourth motor and then used in conjunction with the rack to adjust the pressure between the climbing mechanism and the underwater cylindrical pile body of the building.

[0024] On the basis of the above scheme, the coating system comprises a roller rotating support and a roller support for carrying the coating film;

[0025] The roller rotating bracket includes a slide rail bracket for being relatively fixed with the carrying system, a fifth motor fixed on the slide rail bracket, an F gear driven by the fifth motor, and an annular rack used in conjunction with the F gear and capable of rotating along the inner wall of the slide rail bracket;

[0026] The two ends of the roller bracket are respectively arranged on the annular racks of the two roller rotating brackets;

[0027] The coating film carried on the roller bracket is used to coat the underwater cylindrical pile body of the building when the two annular racks rotate.

[0028] On the basis of the above scheme, the coating film is provided with a support area for forming a gap between the coating film and the underwater cylindrical pile body of the building when the coating film is coated on the underwater cylindrical pile body of the building, and an adhesive layer for bonding adjacent overlapping coating films during coating;

[0029] The coating film is provided with a channel for injecting fluid into a gap formed between the coating film and the underwater cylindrical pile body of the building.

[0030] On the basis of the above scheme, it also includes a cleaning system for cleaning the underwater cylindrical pile body of the building; the cleaning system includes a cleaning slide rail bracket for relative fixation with the carrying system, and a cleaning mechanism arranged on the cleaning slide rail bracket for cleaning the underwater cylindrical pile body of the building.

[0031] The present application also provides a method for cleaning and maintaining an underwater cylindrical pile body of an offshore structure, and the above-mentioned device is used during cleaning and maintenance.

[0032] Beneficial effects of the present invention:

[0033] (1) The device of the present application can clean the pile of an underwater structure underwater by itself, thereby effectively removing dirt and attached organisms on the pile of the underwater structure; and can cover, maintain and protect the pile of the underwater structure after cleaning.

[0034] (2) After using the device of the present application to clean and coat the pile body of an underwater structure, the pile body of the underwater structure can be kept clean for a long time, and the pile body is isolated from seawater, thereby preventing damage to the pile body structure caused by the attachment of marine organisms and environmental corrosion.

[0035] (3) After the pile of an underwater structure is cleaned and coated using the device of the present application, a hardenable slurry is injected into the gap between the pile and the coating film after cyclic cleaning. This method can remove ionic components that are prone to corroding the pile and strengthen the bond between the pile and the protective layer, so that the pile can remain clean for a long time and be isolated from the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0037] Figure 1 This is a schematic diagram of the stereoscopic structure of the device in Example 1 of the present application;

[0038] Figure 2 This is a schematic diagram of the main viewing angle structure of the device in Example 1 of the present application;

[0039] Figure 3 This is a schematic diagram of the structure of the carrying system and the climbing system in the device in Example 1 of the present application;

[0040] Figure 4 This is a schematic diagram of the structure of the mounting system in the device in Example 1 of the present application;

[0041] Figure 5 It is a schematic diagram of the structure of the closing mechanism in the device in Example 1 of the present application;

[0042] Figure 6 This is a schematic diagram of the structure of the locking mechanism in the device in Example 1 of the present application;

[0043] Figure 7 This is a schematic diagram of the structure of the climbing system in the device in Example 1 of the present application;

[0044] Figure 8 This is a schematic diagram of the structure of the climbing mechanism in the climbing system of the device in Example 1 of the present application;

[0045] Fig. 9 This is a schematic diagram of the structure of the telescopic mechanism in the climbing system of the device in Example 1 of the present application;

[0046] Fig.10 This is a schematic diagram of the structure of the coating system in the device in Example 1 of the present application;

[0047] Fig.11 It is a schematic diagram of the structure of the roller rotating bracket in the coating system of the device in Example 1 of the present application;

[0048] Fig.12 This is a schematic diagram of the state in which the roller support carries the coating film roll in Example 1 of the present application;

[0049] Fig.13 This is a schematic diagram of the structure of a coating film used in the device in Example 1 of the present application;

[0050] Fig.14 for Fig.13 Schematic diagram of the cross-sectional structure along the AA direction;

[0051] Fig.15 for Fig.13 Schematic diagram of the state in which the coating film is coated on the pile body;

[0052] Fig.16 This is a schematic diagram of the structure of the cleaning system in the device in Example 1 of the present application;

[0053] Fig.17 This is a schematic diagram of the structure of the cleaning mechanism of the cleaning system in the device of Example 1 of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] Example 1

[0056] like Figure 1 and Figure 2 As shown, the present invention provides a device for maintaining an underwater cylindrical pile body of an offshore structure, comprising:

[0057] Carrying system 1;

[0058] A climbing system 2 is provided on the carrying system 1 and is used to drive the device to move up and down;

[0059] A cleaning system 3 is provided on the carrying system 1 and is used to clean the underwater cylindrical pile of the building;

[0060] A covering system 4 is arranged on the carrying system 1 and is used to cover the covering membrane 6 on the underwater cylindrical pile of the building in a spiral descending manner.

[0061] The carrying system 1 is a main platform for carrying other functional systems. The climbing system 2 is used to drive the entire device to move up or down along the underwater cylindrical pile body of the building; during the movement or when the entire device stops on the underwater cylindrical pile body of the building, the cleaning system 3 is used to clean the pile body (there are many ways to clean, such as using a brush to clean the pile body, using high-pressure water to flush the pile body, using a cavitation jet generator to clean the pile body, and using ultrasonic cleaning technology to clean the pile body). For the pile body after cleaning, the coating system 4 can be used to coat the coating film 6 on the pile body to prevent organisms in the seawater from directly parasitizing on the column body.

[0062] The air jet generator may be a commercially available product, and the cavitation jet generator disclosed in patent CN221245664U may be used.

[0063] The covering film 6 can be a film with adhesive, or a common plastic film to wrap the pile body, and then bundled, especially at the end.

[0064] When wrapping, the pile body is wrapped in a spiral from top to bottom, and the later wrapped coating film 6 presses the lower part of the previously wrapped coating film 6, such as Fig.15 shown.

[0065] As a specific embodiment, the present invention provides a specific embodiment of a carrying system 1, such as Figure 4 As shown, the carrying system 1 includes a plurality of support columns 11, a first annular bracket 12, a second annular bracket 13 and a closing mechanism 15;

[0066] The support column 11 includes a main support column 111, a secondary support column 112 and a plurality of auxiliary support columns 113;

[0067] The ends of the first annular bracket 12 and the second annular bracket 13 are sleeved on the main support column 111, and the opening and closing of the first annular bracket 12 and the second annular bracket 13 around the main support column 111 are controlled by the closing mechanism 15;

[0068] The secondary support column 112 is fixed to an end of the second annular bracket 13 away from the main support column 111 .

[0069] Figure 4A main support column 111, a secondary support column 112 and four auxiliary support columns 113 are shown, two of which are fixed on the first annular bracket 12, and the other two are fixed on the second annular bracket 13. In this way, when the closing mechanism 15 controls the first annular bracket 12 and the second annular bracket 13 to open and close around the main support column 111, at least the main support column 111 remains stationary.

[0070] As a specific embodiment, the present invention provides a specific embodiment of a closing mechanism 15, such as Figure 5 As shown,

[0071] The closing mechanism 15 includes a first motor 151, an A gear 152 driven by the first motor 151, and a B gear 153 used in conjunction with the A gear 152;

[0072] The first motor 151 is fixed on the second annular bracket 13 , and the B gear 153 is fixed on the end of the first annular bracket 12 and sleeved on the main support column 111 .

[0073] In this way, when the closing mechanism 15 controls the first annular bracket 12 and the second annular bracket 13 to open around the main support column 111, the first motor 151 drives the A gear 152 to rotate. At this time, the main support column 111, the first annular bracket 12, the two auxiliary support columns 113 fixed on the first annular bracket 12, and the B gear 153 all remain stationary, while the second annular bracket 13 drives the two auxiliary support columns 113 fixed thereon, a sub-support column 112, the first motor 151 and the A gear 152 to move.

[0074] Specifically, the B gear 153 may be fixed to the end of the first annular bracket 12 by welding or bolting; or Figure 5 In the manner shown in FIG. 1 , two fixing pins are used to limit the B gear 153 and the first annular bracket 12 to limit the rotation of the B gear 153 ( Figure 5 The fixing pins are no longer numbered).

[0075] The closing mechanism 15 can control the opening and closing of the first annular bracket 12 and the second annular bracket 13, but the first annular bracket 12 and the second annular bracket 13 are not connected at the end away from the main support column 111 (i.e., the end close to the auxiliary support column 112). Therefore, even if the first annular bracket 12 and the second annular bracket 13 are in a closed state, the closure is not stable. In order to solve this technical problem, Figure 4 and Figure 6As shown, the mounting system 1 also includes a locking mechanism 14, which includes a second motor 141 fixed to the end of the first annular bracket 12 away from the main support column 111, a C gear 142 driven by the second motor 141, a D gear 143 used in conjunction with the C gear 142, and a locking hook 144 rotatably connected to the first annular bracket 12 via a pin shaft 145 and used in conjunction with the auxiliary support column 112; the above-mentioned "used in conjunction with the auxiliary support column 112" means that when the locking hook 144 is hooked on the auxiliary support column 112, the first annular bracket 12 and the second annular bracket 13 are in a locked state on the side away from the closing mechanism 15; when the locking hook 144 is not hooked on the auxiliary support column 112, the first annular bracket 12 and the second annular bracket 13 are in an unlocked state on the side away from the closing mechanism 15.

[0076] The D gear 143 is disposed at the end of the locking hook 144 through a pin shaft 145 and the D gear 143 and the locking hook 144 are relatively fixed. Figure 6 The figure shows that a pin is passed through the locking hook shaft hole 146 to limit and fix the D gear 143 and the locking hook 144.

[0077] When locking or opening is required, the second motor 141 drives the C gear 142 to rotate. At this time, since the D gear 143 and the locking hook 144 are fixed, and the locking hook 144 is rotatably connected to the first annular bracket 12 through the pin 145, when the C gear 142 rotates, it drives the D gear 143 and the locking hook 144 to rotate around the pin 145, so that the locking hook 144 can be hung on the auxiliary support column 112 or detached from the auxiliary support column 112.

[0078] When the maintenance device is cleaning and maintaining the pile body, it needs to move up and down to achieve cleaning and maintenance of different positions. The present application provides a specific implementation of a climbing system 2, such as Figure 3 and Figure 7 As shown, the climbing system 2 includes two climbing system groups ( Figure 3 The two climbing system groups shown in the figure are respectively located on the upper and lower sides of the carrying system 1), each climbing system group includes at least three climbing mechanisms 21 around the circumference of the pile body, and the climbing mechanism 21 includes at least one climbing mechanism 211 for climbing and two telescopic mechanisms 212 for adjusting the pressure between the climbing mechanism 211 and the underwater cylindrical pile body of the building through a rack 212-1, and the two telescopic mechanisms 212 are respectively located on both sides of the climbing mechanism 211.

[0079] As a specific implementation scheme, Figure 8As shown, the climbing mechanism 211 includes a third motor 211-1, a first umbrella gear 211-5 driven by the third motor 211-1, a second umbrella gear 211-6 used in conjunction with the first umbrella gear 211-5, and a climbing wheel 211-3 driven to rotate by the second umbrella gear 211-6 through a transmission belt 211-7;

[0080] A climbing mechanism bracket 211-2 is fixed to the third motor 211-1, and a bracket plate 211-8 for mounting the second bevel gear 211-6 and a mounting frame 211-9 for mounting the climbing wheel 211-3 are fixedly connected to the climbing mechanism bracket 211-2 (the mounting frame 211-9 can also be fixed on the bracket plate 211-8, or the climbing mechanism bracket 211-2, the bracket plate 211-8 and the mounting frame 211-9 are fixedly connected in pairs); rack joints 211-4 for fixing the rack 212-1 are respectively arranged on both sides of the mounting frame 211-9.

[0081] like Fig. 9 As shown, the telescopic mechanism 212 includes a telescopic mechanism bracket 212-2 for fixing the telescopic mechanism 212 on the support column 11, and an E gear 212-4 fixed on the telescopic mechanism bracket 212-2 for driving the E gear 212-4 through a fourth motor 212-3 and then used in conjunction with the rack 212-1 to adjust the pressure between the climbing mechanism 211 and the underwater cylindrical pile body of the building.

[0082] Figure 7 Each climbing mechanism 21 shown in the figure includes two racks 212-1, and the climbing mechanism 211 is fixedly connected between the two racks 212-1 through a rack joint 211-4; the other end of the rack 212-1 is connected to the telescopic mechanism 212, and the E gear 212-4 is driven to rotate by the fourth motor 212-3, thereby pulling the rack 212-1, so that the distance between the telescopic mechanism 212 and the climbing mechanism 211 becomes larger or smaller, thereby adjusting the pressure between the climbing mechanism 211 and the underwater cylindrical pile body of the building.

[0083] from Figure 3 It can be seen that the three climbing mechanisms of a climbing system group have six telescopic mechanisms 212, and each telescopic mechanism 212 is fixedly connected to a support column 11, thereby realizing the connection between the climbing system 2 and the carrying system 1.

[0084] As a specific implementation scheme, Fig.10 As shown, the coating system 4 includes a roller rotating bracket 41 and a roller bracket 42 for carrying the coating film 6 , wherein there are two roller rotating brackets 41 , and the roller bracket 42 is arranged between the two roller rotating brackets 41 .

[0085] Specifically, Fig.11As shown, the roller rotating bracket 41 includes a slide rail bracket 411 for relative fixation with the carrying system 1 (specifically, the slide rail bracket 411 is fixedly connected to the support column 11 of the carrying system 1. There are two slide rail brackets 411 of a roller rotating bracket 41, which are respectively fixed on different support columns 11 and can be opened and closed around the main support column 111 together with the first annular bracket 12 and the second annular bracket 13), a fifth motor 412 fixed on the slide rail bracket 411, an F gear 413 driven by the fifth motor 412, and an annular rack 414 used in conjunction with the F gear 413 and capable of rotating along the inner wall of the slide rail bracket 411 (as shown in FIG. Fig.10 As shown, when the two slide rail brackets 411 are closed, the annular rack 414 on one roller rotating bracket 41 can form a complete circle, that is, the fifth motor 412 can drive the annular rack 414 to make a complete circular motion along the inner wall of the slide rail bracket 411. The annular rack 414 can rotate along the inner wall of the slide rail bracket 411 by using the cooperation of the slide rail and the slide groove, for example, the slide rail is provided on the inner wall of the slide rail bracket 411, and the slide groove used in cooperation with the slide rail is provided on the outer wall of the annular rack 414, which is not numbered or shown in the figure);

[0086] The two ends of the roller bracket 42 are respectively arranged on the annular racks 414 of the two roller rotating brackets 41;

[0087] The coating film 6 carried on the roller bracket 42 is used to coat the underwater cylindrical pile of the building when the two annular racks 414 rotate.

[0088] When in use, the coating film 6 carried on the roller bracket 42 is first wrapped and fixed on the pile body. Then, when the climbing system 2 drives the entire device to move downward along the pile body, the fifth motor 412 on the coating system 4 drives the annular rack 414 to move along the inner wall of the slide rail bracket 411, thereby driving the coating film 6 carried on the roller bracket 42 to continuously spirally wrap around the pile body.

[0089] Based on the above implementation scheme, in order to better clean the pile body, the present application provides a specific implementation scheme of a cleaning system 3, such as Fig.16 As shown, the cleaning system 3 includes a cleaning rail bracket 31 for being relatively fixed with the carrying system 1, and a cleaning mechanism 32 arranged on the cleaning rail bracket 31 for cleaning the underwater cylindrical pile body of the building;

[0090] like Fig.16 and Fig.17As shown, the cleaning rail bracket 31 is provided with a rail 311; the cleaning mechanism 32 includes a fifth motor 321 fixed on the cleaning rail bracket 31, a G gear 322 driven by the fifth motor 321, a rail rack 323 provided on the rail 311 and capable of being driven by the G gear 322 and rotating along the rail 311, and a cavitation jet generator 324 for cleaning the underwater cylindrical pile body of the building;

[0091] The slide rail rack 323 is provided with a slide groove 323-1 for use with the slide rail 311;

[0092] The cavitation jet generator 324 can be directly fixed on the slide rail rack 323, so that it can rotate with the slide rail rack 323. In addition, the cavitation jet generator 324 can also be arranged on the slider 325, and the slider 325 is also provided with a slide groove for use with the slide rail 311.

[0093] In order to observe the cleaning effect, the cleaning mechanism 32 also includes an underwater camera 326 .

[0094] All motors in this embodiment can be remotely controlled. Therefore, during operation, the underwater pile body can be cleaned and maintained only on the water.

[0095] The present invention uses five motors in total. The models of these five motors can be the same, and all of them can use the motor with model HYUM0050-70-D10 produced by Nanjing Huayan Dynamic Sealing Technology Co., Ltd.

[0096] Example 2

[0097] The present application also provides a specific structure of a coating membrane for an underwater cylindrical pile of a building, such as Fig.13 As shown,

[0098] The coating film 6 is provided with a support area 61 for forming a gap between the coating film 6 and the underwater cylindrical pile of the building when the coating film 6 is coated on the underwater cylindrical pile of the building;

[0099] and

[0100] An adhesive layer 62 used for bonding the coating film 6 and the pile body and the laminated coating films 6 during coating so that the gap between the support area 61 and the pile body becomes a closed space;

[0101] The coating membrane 6 is also provided with a channel 63 for injecting fluid into the gap formed between the coating membrane 6 and the underwater cylindrical pile body of the building.

[0102] The function of the coating film 6 is to coat the underwater cylindrical pile of the building to form a gap between the coating film 6 and the pile (the size of the gap can be 4-8mm). Because it is underwater, the gap is filled with water during coating. In order to make the gap into a closed space, an adhesive layer 62 is used, such as Fig.15 As shown, when the coating begins, the end (starting end) of the coating film 6 is all adhesive layer 62, so the coating film 6 will be tightly bonded to the pile body. As the coating proceeds, the adhesive layer 62 of the coating film covering the upper layer will be bonded to the outer wall (i.e., surface A) of the coating film superimposed on the lower layer. At the end of the coating, the adhesive layer 62 on the coating film 6 will be tightly bonded to the pile body. After the coating is completed, the gap formed between the coating film 6 and the pile body is sealed into a closed space.

[0103] The adhesive layer 62 is disposed on one side (i.e. Fig.13 In order to make the coating film 6 and the pile body bond better, the support area 61 of the coating film 6 does not extend to both ends of the coating film 6 (that is, both ends of the coating film 6 are fully provided with the adhesive layer 62); the length from the end of the support area 61 to the end of the coating film 6 on the corresponding side is greater than 2 times the circumference of the pile body.

[0104] The present application provides a specific implementation of the support area 61, such as Fig.13 and Fig.14 As shown, an adhesive layer 62 is provided at both ends of one side (side B) of the coating film 6 and one side of the middle part, and the other side of the empty middle part is not provided with an adhesive layer 62, but a plurality of protruding support particles 64 are provided on it (the support particles 64 can be an integral structure with the coating film 6). Fig.13 A hose is provided on the A surface in the figure, and the hose serves as a channel 63;

[0105] The channel 63 is used to inject fluid into the gap formed between the coating membrane 6 and the underwater cylindrical pile body of the building. In order to more conveniently inject fluid into the gap, Fig.13 and Fig.15 As shown, the outlet 632 of the channel 63 is arranged at the terminal end of the support area 61. In order to prevent a single outlet 632 from being blocked during use, a plurality of outlets 632 (such as Fig.13 as shown).

[0106] The inlet 631 of the channel 63 is arranged at the starting end of the support area 61 and is located on both sides of the coating film 6 with the support area 61 ( Fig.13 In the figure, the support area 61 is located on the B surface, and the inlet 631 is arranged on the A surface).

[0107] like Fig.15 As shown, after the coating film 6 is wrapped around the pile body from top to bottom, the inlet 631 is located at the upper end of the pile body and on the outside of the coating film 6 , and the outlet 632 is located at the lower end of the pile body and on the inside of the coating film 6 .

[0108] Since the gap between the coating membrane 6 and the pile body is closed and filled with seawater, the seawater inside needs to be removed when injecting fluid into the channel 63. For this purpose, based on the above technical solution, a through hole 65 penetrating the wall of the coating membrane 6 is provided at the starting end of the support area 61 of the coating membrane 6.

[0109] The terminating end refers to the tail end of the coating film 6, that is, the last part of the coating film 6 when it is wrapped around the pile body.

[0110] The starting end refers to the head end of the coating film 6, that is, the first part of the coating film 6 when it is wrapped around the pile body.

[0111] Both the coating film 6 and the supporting particles 62 may be made of polyethylene (PE); the adhesive of the adhesive layer 62 may be commercially available adhesive suitable for underwater use, or may be the glue in patent CN114790369A.

[0112] Example 3

[0113] Based on the device in Example 1, the present application provides a method for cleaning and maintaining an underwater cylindrical pile of an offshore structure.

[0114] The specific method includes the following steps:

[0115] S1: Install an air bag on the device and put it into the water to make it float, and guide it to the pile that needs cleaning and maintenance by artificial means;

[0116] S2: driving the carrying system 1 to open and embrace the pile;

[0117] The specific operation method is: remotely control the first motor 151 to open the closing mechanism 15, so that the first annular bracket 12 and the second annular bracket 13 are wrapped around the pile body, and then control the first motor 151 to close the closing mechanism 15; control the second motor 141 to open, and use the locking hook 144 to lock the first annular bracket 12 and the second annular bracket 13;

[0118] S3: driving the climbing system 2 to enable it to move along the pile body and removing the airbag;

[0119] The specific operation method is: remotely control the fourth motor 212-3 to adjust the pressure between the climbing mechanism 211 and the underwater cylindrical pile of the building to meet the requirements for climbing; only control the third motor 211-1 to turn on, so that it drives the climbing wheel 211-3 to climb down along the pile body;

[0120] S4: During the downward climbing process, the pile body is cleaned using the cleaning system 3;

[0121] The specific operation method is: observe whether the pile body needs to be cleaned through the underwater camera 326, and if necessary, turn on the cavitation jet generator 324 through remote control, and at the same time control the fifth motor 321 to turn on so that the cavitation jet generator 324 rotates;

[0122] S5: After the cleaning is completed, the control device climbs upward and leaves the water surface; the coating film 6 is manually unfolded from the coating system 4 and the starting end of the coating film 6 is glued to the pile body;

[0123] S6: The covering system 4 and the climbing system 2 are driven to open simultaneously, so that the device moves underwater and the covering membrane 6 is wound around the underwater cylindrical pile of the building in a spiral descending manner.

[0124] If the pile body needs to be maintained, the coating film 6 in Example 2 is used. After the coating film 6 in Example 2 is coated on the pile body, the following operations are performed:

[0125] S7: Connect the inlet 631 and the through hole 65 of the channel 63 on the coating membrane 6 to an external circulating water system respectively;

[0126] S8: Start the circulating water system, so that fresh water (which can be distilled water, river water, lake water or tap water) is injected into the channel 63 through the inlet 631, and then injected into the gap between the coating film 6 and the pile body from the outlet 632 of the channel 63. With the injection of fresh water, the seawater in the gap is continuously discharged from the through hole 65;

[0127] During this process, the chloride ion content in the outflowing water is monitored until the chloride ion content in the outflowing water reaches a predetermined requirement, then the injection of fresh water is stopped and the fresh water in the gap is pumped out as much as possible from the inlet 631;

[0128] S9: Remove the circulating water system and use the grouting system to connect the inlet 631 and the through hole 65 of the channel 63 on the coating membrane 6; inject glue or other slurry into the gap from the inlet 631 until the slurry fills the inside of the coating membrane, and finally remove the grouting system and close the through hole 65 and the inlet 631.

[0129] The above-mentioned glue can use epoxy resin AB glue, and the slurry can use cement-water glass double liquid slurry.

[0130] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A cleaning and maintenance device for underwater cylindrical piles of offshore structures, characterized in that: include Carrying system (1); A climbing system (2) disposed on the carrying system (1) and used to drive the device to move up and down; A cleaning system (3) disposed on the carrying system (1) and used for cleaning the underwater cylindrical pile body of the building; A coating system (4) is arranged on the carrying system (1) and is used to cover the coating membrane (6) on the underwater cylindrical pile of the building in a spiral descending manner when the climbing system (2) drives the device to move downward along the pile body; The coating film (6) is provided with a support area (61) for forming a gap between the coating film (6) and the underwater cylindrical pile body of the building when the coating film (6) is coated on the underwater cylindrical pile body of the building, and an adhesive layer (62) for bonding adjacent overlapping coating films (6) during coating; The coating film (6) is provided with a channel (63) for injecting fluid into the gap formed between the coating film (6) and the underwater cylindrical pile body of the building; The outlet (632) of the channel (63) is arranged at the terminal end of the support area (61); The inlet (631) of the channel (63) is arranged at the starting end of the support area (61) and is located on both sides of the coating film (6) together with the support area (61); A through hole (65) penetrating the wall of the covering film (6) is arranged at the starting end of the supporting area (61) of the covering film (6).

2. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 1, characterized in that: The carrying system (1) comprises a plurality of support columns (11), a first annular bracket (12), a second annular bracket (13) and a closing mechanism (15); The support column (11) comprises a main support column (111), a secondary support column (112) and a plurality of auxiliary support columns (113); The ends of the first annular bracket (12) and the second annular bracket (13) are sleeved on the main support column (111), and the opening and closing of the first annular bracket (12) and the second annular bracket (13) around the main support column (111) are controlled by a closing mechanism (15); The secondary support column (112) is fixed to an end of the second annular support (13) away from the main support column (111).

3. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 2, characterized in that: The closing mechanism (15) comprises a first motor (151), an A gear (152) driven by the first motor (151), and a B gear (153) used in conjunction with the A gear (152); The first motor (151) is fixed on the second annular bracket (13), and the B gear (153) is fixed on the end of the first annular bracket (12) and sleeved on the main support column (111).

4. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 2, characterized in that: The mounting system (1) further comprises a locking mechanism (14), wherein the locking mechanism (14) comprises a second motor (141) fixed to an end of the first annular bracket (12) away from the main support column (111), a C gear (142) driven by the second motor (141), a D gear (143) used in conjunction with the C gear (142), and a locking hook (144) rotatably connected to the first annular bracket (12) via a pin shaft (145) and used in conjunction with the auxiliary support column (112); The D gear (143) is arranged on the end of the locking hook (144) via a pin shaft (145).

5. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 1, characterized in that: The climbing system (2) comprises at least two climbing system groups arranged along the length direction of the pile body, each climbing system group comprises at least three climbing mechanisms (21) surrounding the circumference of the pile body, the climbing mechanism (21) comprising a climbing mechanism (211) for climbing and two telescopic mechanisms (212) for adjusting the pressure between the climbing mechanism (211) and the underwater cylindrical pile body of the building through a rack (212-1), the two telescopic mechanisms (212) being respectively located on both sides of the climbing mechanism (211).

6. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 5, characterized in that: The climbing mechanism (211) comprises a third motor (211-1) for providing power for climbing, a first umbrella-shaped gear (211-5) driven by the third motor (211-1), a second umbrella-shaped gear (211-6) used in conjunction with the first umbrella-shaped gear (211-5), and a climbing wheel (211-3) driven to rotate by the second umbrella-shaped gear (211-6) via a transmission belt (211-7).

7. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 5, characterized in that: The telescopic mechanism (212) comprises a telescopic mechanism bracket (212-2) for fixing the telescopic mechanism (212) on a support column (11), and a gear (212-4) fixed on the telescopic mechanism bracket (212-2) for driving an E gear (212-4) through a fourth motor (212-3) and then cooperating with a rack (212-1) to adjust the pressure between the climbing mechanism (211) and an underwater cylindrical pile body of a building.

8. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 1, characterized in that: The coating system (4) comprises two roller rotating supports (41) and a roller support (42) for carrying the coating film (6); The roller rotating bracket (41) comprises a slide rail bracket (411) for being relatively fixed to the carrying system (1), a fifth motor (412) fixed to the slide rail bracket (411), an F gear (413) driven by the fifth motor (412), and an annular rack (414) used in conjunction with the F gear (413) and capable of rotating along the inner wall of the slide rail bracket (411); The two ends of the roller bracket (42) are respectively arranged on the annular racks (414) of the two roller rotating brackets (41).

9. The cleaning and maintenance device for underwater cylindrical piles of offshore structures according to claim 1, characterized in that: It also includes a cleaning system (3) for cleaning the underwater cylindrical pile body of the building; the cleaning system (3) includes a cleaning slide rail bracket (31) for being relatively fixed to the carrying system (1), and a cleaning mechanism (32) arranged on the cleaning slide rail bracket (31) for cleaning the underwater cylindrical pile body of the building.

10. A method for cleaning and maintaining underwater cylindrical piles of offshore structures, characterized in that: Use the device according to any one of claims 1 to 9.

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