Far sacrificial anode component and sinking installation method thereof
Through the design of remote sacrificial anode components, including prefabricated steel frame structures and multiple anode blocks, the problems of high risks, high costs and low construction efficiency of the anode block submersible installation in marine engineering are solved, and efficient and safe Anode block installation and anode cable laying.
Patent Information
- Application Number
- CN202411729042.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-02-21
AI Technical Summary
The existing marine engineering remote-ground sacrificial anode cathode protection system has high risk, high cost and low construction efficiency.
Using a remote sacrificial anode member, including a steel frame structure, multiple anode blocks and sinker components, the steel frame structure with sufficient weight is formed by prefabricating and pouring to achieve the integration of the anode block and the stable laying and limiting of the anode cable. Avoid diving operations.
It improves the installation efficiency of the anode block, reduces installation costs and risks, avoids diving operation processes, and achieves stable laying and limiting of the anode cable.
Smart Images
Figure CN119491231A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of marine engineering anti-corrosion, and in particular to a remote sacrificial anode component and a sinking installation method thereof. Background Art
[0002] Sacrificial anode cathodic protection is the main electrochemical anti-corrosion method for marine engineering steel pipe piles. As an important component of the sacrificial anode cathodic protection system, the remote auxiliary anode is usually composed of relatively active metals such as zinc and aluminum. It acts as an anode in the cathodic protection system, undergoes an oxidation reaction, and guides the current to the protected structure through a wire, so that the protected structure undergoes a reduction reaction and becomes a cathode, so that the oxidation reaction on the protected structure is suppressed, thereby slowing down or preventing the corrosion process of the protected structure.
[0003] The remote auxiliary anode is connected to the protected structure through an anode cable and has a certain distance from the protected structure in the horizontal direction. In order to prevent the auxiliary anode from being affected by the flow of water, the anode blocks of the remote auxiliary anodes of existing marine engineering projects need to be welded or installed by diving or clamping by divers or underwater robots to achieve stable fixation of the auxiliary anode underwater. At the same time, the anode cable also needs to be laid underwater to ensure that the anode cable is stably set and will not sway under the impact of water flow or shear with the anode block to affect the service life. However, in some sea areas with harsh hydrological conditions, the safety risk of diving operations is huge, there are large potential construction hazards, the rental cost of diving auxiliary equipment is high, the labor cost of diving operations is high, and due to the influence of the underwater construction environment, only 2-3 anode blocks can be welded and installed every day, and the construction efficiency is low. Summary of the invention
[0004] The purpose of the present invention is to overcome the shortcomings of the prior art in that the anode block of a sacrificial anode cathodic protection system has high risk, high cost and low construction efficiency in submerged installation, and to provide a remote sacrificial anode component and a sinking installation method thereof.
[0005] In a first aspect, the present invention provides a remote sacrificial anode component, comprising: The steel frame structure is provided with a casting cavity, a lifting lug and a buffer ring, and a limiting column with a pointed end is provided at the bottom. When the steel frame structure is prefabricated, a counterweight plate of reinforced concrete is cast and filled in the casting cavity, so that the steel frame structure can sink under its own gravity and stabilize at the bottom of the water; Anode blocks, a plurality of anode blocks are distributed and connected to the steel frame structure; An anode cable, one end of which is welded to the steel frame structure and the other end of which can be connected to a junction box on the protected structure. The anode cable is connected to a plurality of sinking aid components, which can limit the position of the anode cable and lay it on the bottom of the water.
[0006] A remote sacrificial anode component of the present invention has a simple structure and is easy to prefabricate. It can realize the integration of multiple anode blocks on a steel frame structure, provide a structural basis for the underwater stable setting of the anode blocks, and assist the laying and limiting of the anode cable through the sinking auxiliary component, providing a structural basis for the underwater stable laying of the anode cable, so that the sinking installation and underwater position of the remote sacrificial anode component are stable, and the underwater laying and limiting of the anode cable can avoid manual diving operations, improve installation efficiency, and reduce installation costs and installation risks.
[0007] Preferably, the sinking aid component comprises a prefabricated concrete block, the prefabricated concrete block is embedded with a pipe and a steel rod, the steel rod extends from both sides of the prefabricated concrete block, the anode cable passes through the pipe and is tied to the steel rod. To achieve a stable connection of the sinking aid component on the anode cable, the distance between adjacent sinking aid components can be adjusted according to actual conditions.
[0008] Preferably, at least two anode cables are included, and at least two anode cables are commonly connected to the sinking-aiding member.
[0009] Preferably, the steel frame structure includes a main frame, the main frame includes a plurality of steel bars, the plurality of steel bars are combined to form the casting cavity, a steel mesh structure is provided in the casting cavity, the steel mesh structure is fixedly connected to the main frame, the steel mesh structure can be embedded in the counterweight plate, the main frame is connected to a plurality of the anode blocks, and the counterweight plate is provided with the lifting ears.
[0010] Preferably, the steel frame structure also includes a top frame and a plurality of connecting rods, the top ends of the connecting rods are connected to the top frame, and the bottom ends are connected to the main frame, a plurality of the anode blocks are detachably connected to the connecting rods, and the top frame is provided with the lifting ears.
[0011] In a second aspect, the present invention provides a method for sinking and installing a remote sacrificial anode component, comprising: Step 1, prefabricate a remote sacrificial anode component as described above, and arrange a plurality of sinking aid components on the anode cable according to the horizontal distance between the steel frame structure and the protected structure, with adjacent sinking aid components spaced 1-1.5 m apart, and the plurality of sinking aid components being arranged at equal intervals; Step 2, wrapping the anode cable around the buffer ring for several turns and tying it up to fix it; Step 3, connecting all the sinking aid components on the anode cable through ropes, and keeping the anode cable looser than the ropes; Step 4, temporarily limiting the anode cable away from the end of the steel frame structure, lifting the steel frame structure by a crane, connecting the crane hook with the steel frame structure through a steel wire rope and an automatic unhooking shackle, lowering the steel frame structure to an underwater installation position, and releasing the automatic unhooking shackle; Step 5: The anode cable is lowered by pulling the crane, so that the sinking aid components are sunk one by one to the underwater installation position along the direction from the steel frame structure components to the protected structure, and the end is pulled to the installation position above the water surface.
[0012] The sinking installation method of a remote sacrificial anode component of the present invention completely avoids the diving operation process during the underwater installation of the remote sacrificial anode, improves the installation efficiency of the remote sacrificial anode component, and reduces the installation risk and installation cost.
[0013] Preferably, in step 4, the steel frame structure is lifted by a crane hook, and the end and the rope are hooked by a crane hook, so that all the sinking aid components are kept in a suspended state, and the crane hook and the crane hook move synchronously, so that the rope bears the load force of all the sinking aid components during the sinking process.
[0014] Preferably, in step 5, the rope is lowered and shifted by a small hook of a crane to pull the anode cable downward.
[0015] Preferably, in step 4, the end and the rope are confined to the platform where the crane is located, and in step 5, the rope is lowered and displaced by the crane hook to pull the anode cable downward.
[0016] Preferably, in step 4, the steel frame structure is towed by a towing rope to match the underwater installation position during the lowering process, and the underwater installation position is located by GPS.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a remote sacrificial anode component, which realizes the sinking installation and underwater position stability of the remote sacrificial anode component by prefabricating and casting a steel frame structure with sufficient weight, reduces underwater welding and fixing processes, avoids diving operations, improves installation efficiency, and reduces installation costs and installation risks; 2. The present invention provides a remote sacrificial anode component, which integrates multiple anode blocks on a steel frame structure, so that multiple anode blocks can be installed in one sinking construction, further improving the installation efficiency; 3. The present invention provides a remote sacrificial anode component, which assists the laying and limiting of the anode cable through the sinking auxiliary component, further avoiding the diving operation process of the anode cable laying process, and reducing the laying difficulty and laying cost of the anode cable; 4. The present invention provides a method for sinking and installing a remote sacrificial anode component. By prefabricating the remote sacrificial anode component, multiple anode blocks are integrated and fixed in advance. Multiple anode blocks can be installed by sinking and installing once, thereby improving the installation efficiency of the anode blocks. 5. The present invention provides a method for sinking and installing a remote sacrificial anode component, which is installed by lifting and lowering the component with a crane, and pulling the anode cable down, which completely avoids the underwater welding process, avoids the risk of diving operations, and reduces the installation cost; 6. The present invention provides a method for sinking and installing a remote sacrificial anode component, which achieves stability during the laying, installation and use of the anode cable through a sinking-aiding component with sufficient weight. It has a simple structure and is easy to set up, which simplifies the underwater laying process of the anode cable and can ensure the structural stability of the anode cable during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a front view of a remote sacrificial anode component of Example 1; Figure 2 It is a structural schematic diagram of the steel frame structure in Example 1; Figure 3 This is a schematic diagram of the structure in which the sinking aid component is tied and fixed on the anode cable in Example 1; Figure 4 It is a front view of a remote sacrificial anode component of Example 2; Figure 5 It is a structural schematic diagram of the steel frame structure in Example 2; Figure 6 This is a schematic flow chart of a method for sinking and installing a remote sacrificial anode component according to Example 3; Figure 7 The state diagram of the sinking installation method corresponding to step 4 in Example 3 is shown as follows Figure 1 ; Figure 8 The state diagram of the sinking installation method corresponding to step 4 in Example 3 is shown as follows Figure 2 ; Fig. 9 The state diagram of the sinking installation method corresponding to step 5 in Example 3 is shown as follows Figure 1 ; Fig.10 The state diagram of the sinking installation method corresponding to step 4 in Example 3 is shown as follows Figure 3 ; Fig.11The state diagram of the sinking installation method corresponding to step 4 in Example 3 is shown as follows Figure 4 ; Fig.12 The state diagram of the sinking installation method corresponding to step 5 in Example 3 is shown as follows Figure 2 ; Markings in the figure: 1-steel frame structure, 11-main frame, 12-casting cavity, 13-lifting ear, 14-buffer ring, 15-limiting column, 16-counterweight plate, 17-steel mesh structure, 18-top frame, 19-connecting rod, 2-anode block, 3-anode cable, 4-sinking aid component, 41-precast concrete block, 42-pipe fittings, 43-steel rod, 5-rope, 6-crane, 61-wire rope, 62-automatic unhooking shackle, 63-crane hook, 64-crane hook, 7-traction rope. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0020] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.
[0021] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.
[0022] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.
[0023] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.
[0024] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.
[0025] Example 1 like Figure 1-Figure 5 As shown, a remote sacrificial anode component includes a steel frame structure 1, an anode block 2 and an anode cable 3. The steel frame structure 1 is provided with a casting cavity 12, a lifting lug 13 and a buffer ring 14, and a limiting column 15 with a pointed end is provided at the bottom. When the steel frame structure 1 is prefabricated, a counterweight plate 16 formed by pouring and filling reinforced concrete is formed in the casting cavity 12, so that the steel frame structure 1 can sink and stabilize on the bottom of the water under the action of its own gravity; a plurality of anode blocks 2 are distributed and connected to the steel frame structure 1; one end of the anode cable 3 is welded to the steel frame structure 1 and the other end can be connected to a junction box on the protected structure, and a plurality of sinking aid components 4 are connected to the anode cable 3, and the sinking aid components 4 can limit the anode cable 3 and lay it on the bottom of the water.
[0026] In one or more embodiments, the sinking aid component 4 may include a prefabricated concrete block 41, in which a pipe 42 and a steel rod 43 are embedded. The pipe 42 and the steel rod 43 are arranged in parallel. The steel rod 43 extends from both sides of the prefabricated concrete block 41. The anode cable 3 passes through the pipe 42 and is tied to the steel rod 43. To achieve a stable connection of the sinking aid component 4 on the anode cable 3, the distance between adjacent sinking aid components 4 can be adjusted according to actual conditions, such as Figure 3 shown.
[0027] In an optional embodiment, the sinking aid component 4 is a rectangular prefabricated concrete block 41, and the weight is determined according to the laying requirements of the anode cable 3 at the corresponding water depth. The pipe 42 and the steel rod 43 are embedded in the sinking aid component 4 when the sinking aid component 4 is prefabricated. The steel rod 43 is arranged along the long axis direction of the rectangular prefabricated concrete block 41, and extends a certain length at both ends. A channel for the anode cable 3 to pass through is established in the sinking aid component 4 through the pipe 42, and a position for binding and fixing is provided for the anode cable 3 that passes through, thereby providing a structural basis for the stable arrangement of the sinking aid component 4 on the anode cable 3, such as Figure 3 shown.
[0028] In an optional embodiment, the shape of the sinking aid component 4 can also be a prism, a cube or other cubic shapes. Preferably, the sinking aid component 4 has a flat bottom to achieve stable setting of the sinking aid component 4 on the bottom of the water and achieve stable positioning of the anode cable 3.
[0029] In an optional embodiment, the sinking-aiding component 4 has a wider bottom surface, and the bottom surface of the sinking-aiding component 4 is provided with spikes, columns or other anti-slip components that can be inserted into the bottom of the water during prefabrication, so that the setting of the sinking-aiding component 4 can stably limit the position and lay the anode cable 3 on the bottom of the water, and it is not easily moved or shaken by the water flow.
[0030] In an optional embodiment, when the distance between adjacent sinking aid components 4 is determined, two to three sinking aid components 4 can be prefabricated at a set interval according to actual conditions, and connected as a whole by a single steel rod 43, thereby realizing the integration of multiple sinking aid components 4 during prefabrication, allowing adjacent sinking aid components 4 to assist each other and more stably limit the anode cable 3 when in use.
[0031] In one or several embodiments, the end of an anode cable 3 is welded to the steel frame structure 1, and the part of the anode cable 3 extending out of the steel frame structure 1 that needs to be laid on the seabed is arranged with a sinking aid component 4, and the distance between adjacent sinking aid components 4 is 1m-1.5m, preferably 1m, so that multiple sinking aid components 4 are connected in series through a single anode cable 3, and the spacing between the sinking aid components 4 is small, so that the anode cable 3 can be coordinated through multiple sinking aid components 4 to achieve multi-point stable positioning of the anode cable 3.
[0032] In an optional implementation, two anode cables 3 may also be arranged on a single steel frame structure 1, and the two anode cables 3 are respectively connected to the sinking aid components 4 and are laid separately.
[0033] In an optional embodiment, two anode cables 3 may be arranged on a single steel frame structure 1, and the two anode cables 3 are connected to the sinking aid component 4, that is, the two anode cables 3 pass through the pipe 42 on the sinking aid component 4 at the same time, so that multiple sinking aid components 4 are connected in series through the two anode cables 3, and the two anode cables 3 are laid synchronously. The two anode cables 3 are mutually redundant in a cathodic protection system to ensure the long-term effectiveness of the cathodic protection system, such as Figure 2 shown.
[0034] In an optional embodiment, a cable sealing box can be provided on the steel frame structure 1, and one end of the anode cable 3 is inserted into the cable sealing box through a cable gland, and is brazed to the steel frame structure 1 in the cable sealing box, and the cable sealing box is filled with epoxy resin to protect the welding points from corrosion. At the same time, the part of the anode cable 3 outside the sealing box is fixed by two cable clamps welded to the steel frame structure 1 to prevent the anode cable 3 from being cut off by the swaying and wear of the water flow at the cable gland.
[0035] In one or more embodiments, the steel frame structure 1 includes a main frame 11, the main frame 11 includes a plurality of steel bars, the plurality of steel bars are combined to form a casting cavity 12, a steel mesh structure 17 is provided in the casting cavity 12, the steel mesh structure 17 is fixedly connected to the main frame 11, the steel mesh structure 17 can be embedded in a counterweight plate 16, the main frame 11 is connected to a plurality of anode blocks 2, and the counterweight plate 16 is pre-embedded with a lifting lug 13 during casting, such as Figure 2 , Figure 5 shown.
[0036] In an optional embodiment, the steel structure rods can be long rod-shaped structural members such as channel steel, rectangular tube, angle steel, etc., which have sufficient weight and can meet the needs of long-term use in an underwater environment. Several steel structure rods are connected end to end to form a casting cavity 12. The casting cavity 12 has a certain height. According to the use requirements of the remote sacrificial anode component, the amount of casting material in the casting cavity 12 can be adjusted to form sacrificial anode components with different counterweights.
[0037] In an optional implementation manner, the structure of the main frame 11 can be adjusted according to actual conditions.
[0038] In an optional implementation, the steel mesh structure 17 can be a plurality of staggered steel bars, both ends of each steel bar extend into the steel frame structure 1 and are embedded or welded to the steel frame structure 1 .
[0039] In an optional implementation, the steel mesh structure 17 may also be a pre-woven steel mesh that can be stably connected to the steel frame structure by welding or the like.
[0040] In one or several embodiments, the limiting column 15 can be a column structure with a pointed end arranged on the top of the steel frame structure 1, which can perform auxiliary limiting after the sacrificial anode component sinks to the bottom of the water, thereby preventing the sacrificial anode component from moving with the flow of water, thereby ensuring the long-term effective use of the sacrificial anode component.
[0041] In one or several embodiments, the buffer ring 14 can be a circular ring component welded to the steel frame structure 1, and the anode cable 3 can be circumferentially wrapped around the buffer ring 14 and then tied and fixed, which can prevent the connection position of the anode cable 3 and the steel frame structure 1 from being affected by the tensile force caused by the sinking process and the impact of water flow, thereby ensuring the stable connection between the anode cable 3 and the steel frame structure 1.
[0042] A remote sacrificial anode component of the present embodiment has a simple structure and is easy to prefabricate. It can realize the integration of multiple anode blocks 2 on the steel frame structure 1, provide a structural basis for the underwater stable setting of the anode blocks 2, and can be connected to the lifting lug 13 on the steel frame structure 1 through a crane hook to realize the lifting and installation of the sacrificial anode component, and assist the laying and limiting of the anode cable 3 through the sinking auxiliary component 4, providing a structural basis for the underwater stable laying of the anode cable 3, so that the sinking installation and underwater position stability of the remote sacrificial anode component, as well as the underwater laying and limiting of the anode cable 3 can avoid manual diving operations, improve installation efficiency, and reduce installation costs and installation risks.
[0043] Example 2 like Figure 4-Figure 5 As shown, a remote sacrificial anode component of this embodiment has a structure similar to that of embodiment 1, except that: the steel frame structure 1 also includes a top frame 18 and a plurality of connecting rods 19, the top end of the connecting rods 19 is connected to the top frame 18, and the bottom end is connected to the main frame 11, a plurality of anode blocks 2 are detachably connected to the connecting rods 19, and the top frame 18 is provided with a lifting lug 13.
[0044] A remote sacrificial anode component of the present embodiment is achieved by increasing the height of the steel frame structure 1 through the top frame 18 and the connecting rod 19 on the basis of the main frame 11. The anode block 2 can be connected to the connecting rod 19 or to the main frame 11 to achieve the integration of more anode blocks 2 on the steel frame structure 1, and the lifting lug 13 can be set on the top of the steel frame structure 1 to facilitate the lifting and use of the sacrificial anode component after the height is increased.
[0045] Example 3 like Figure 6 As shown, a method for sinking and installing a remote sacrificial anode component comprises: Step 1, prefabricate a remote sacrificial anode component of Example 1 or Example 2, determine the number of sinking aid components 4 and the spacing between adjacent sinking aid components 4 according to the horizontal distance between the steel frame structure 1 and the protected structure, and arrange a plurality of sinking aid components 4 on the anode cable 3, wherein the plurality of sinking aid components 4 are arranged at equal spacings; Step 2: Wrap the anode cable 3 around the buffer ring 14 for several turns and tie it up to secure it. Figure 1 As shown; Step 3: Connect all sinking aids 4 on the anode cable 3 through ropes 5, and keep the anode cable 3 looser than the ropes 5. Figure 3 As shown; Step 4: temporarily limit the anode cable 3 away from the end of the steel frame structure 1, lift the steel frame structure 1 by the crane 6, connect the crane hook to the steel frame structure 1 through the steel wire rope 61 and the automatic unhooking shackle 62, lower the steel frame structure 1 to the underwater installation position, and release the automatic unhooking shackle 62; Step 5: The anode cable 3 is lowered by the crane 6, so that the sinking aid components 4 are sunk one by one to the underwater installation position along the direction from the steel frame components to the protected structure, and the end is pulled to the installation position above the water surface.
[0046] The present embodiment provides a method for sinking and installing a remote sacrificial anode component, wherein a steel frame structure 1 and an anode cable 3 are separately sunk and installed by a crane 6, so that the steel frame structure 1 is sunk and installed and limited in position and stabilized under the action of its own gravity, and the anode cable 3 is sunk and installed and limited in position and stabilized under the action of the gravity of a sinking aid component 4, which can completely avoid the diving operation process during the underwater installation of the remote sacrificial anode, improve the installation efficiency of the remote sacrificial anode component, and reduce the installation risk and installation cost.
[0047] In one or more embodiments, in step 4, the steel frame structure 1 is lifted by the crane hook 63, and the end and the rope 5 are hooked by the crane hook 64, so that all the sinking aid components 4 are kept in a suspended state, and the crane hook 63 and the crane hook 64 move synchronously. The rope 5 bears the load force of all the sinking aid components 4 during the sinking process, and the anode cable 3 is laid and limited after the steel frame structure 1 is installed in place, such as Figure 7 shown.
[0048] In one or more embodiments, in step 4, the steel frame structure 1 is lowered to match the underwater installation position by means of the traction rope 7, and the underwater installation position is located by means of GPS.
[0049] In an optional embodiment, the towing rope 7 can be pulled manually or assisted by mechanical equipment. One end of the towing rope 7 is set on a nearby ship, platform or other structure, which can assist in the precise matching of the underwater installation position of the steel frame structure 1, so that the installation accuracy of the steel frame structure 1 is maintained within 50 cm.
[0050] In one or more embodiments, in step 5, since the crane hook 63 and the crane hook 64 are moved down synchronously, after the steel frame structure 1 is installed in place, the crane hook 63 is recovered, and the crane hook 64 can continue to lower the rope 5, lay and limit the anode cable 3, so that the overall setting efficiency of the sacrificial anode component is high, which is suitable for crane 6 equipment with multiple crane hooks, such as Figure 8-Figure 9 shown.
[0051] In one or more embodiments, in step 4, the end and the rope 5 are limited to the platform where the crane 6 is located. In step 5, the rope 5 is lowered and displaced by the crane hook to pull the anode cable 3 down. During the installation process of the steel frame structure 1 being sunk, one end of the anode cable 3 is kept near the crane 6. After the crane 6 lifts the steel frame structure 1 and installs it in place, it returns to pull and lay the anode cable 3. This is suitable for a crane 6 device with a single crane hook, such as Figure 10-12 shown.
[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A remote sacrificial anode component, characterized in that: include: A steel frame structure (1) is provided with a casting cavity (12), a lifting lug (13) and a buffer ring (14), and a limiting column (15) with a pointed end is provided at the bottom. When the steel frame structure (1) is prefabricated, a counterweight plate (16) formed by pouring and filling reinforced concrete is formed in the casting cavity (12), so that the steel frame structure (1) can sink under the action of its own gravity and stabilize at the bottom of the water; Anode blocks (2), a plurality of the anode blocks (2) are distributed and connected to the steel frame structure (1); An anode cable (3), one end of the anode cable (3) is welded to the steel frame structure (1), and the other end can be connected to a junction box on the protected structure; the anode cable (3) is connected to a plurality of sinking aid components (4), and the sinking aid components (4) can limit the position of the anode cable (3) when laid on the bottom of the water.
2. A remote sacrificial anode component according to claim 1, characterized in that: The sinking aid component (4) comprises a precast concrete block (41), wherein the precast concrete block (41) is embedded with a pipe (42) and a steel rod (43), wherein the steel rod (43) extends from both sides of the precast concrete block (41), and the anode cable (3) passes through the pipe (42) and is tied to the steel rod (43).
3. A remote sacrificial anode component according to claim 2, characterized in that: It comprises at least two anode cables (3), and at least two anode cables (3) are commonly connected to the sinking-assisting component (4).
4. A remote sacrificial anode component according to claim 1, characterized in that: The steel frame structure (1) comprises a main frame (11), the main frame (11) comprises a plurality of steel bars, the plurality of steel bars are combined to form the casting cavity (12), a steel mesh structure (17) is provided in the casting cavity (12), the steel mesh structure (17) is fixedly connected to the main frame (11), the steel mesh structure (17) can be embedded in the counterweight plate (16), the main frame (11) is connected to a plurality of anode blocks (2), and the counterweight plate (16) is provided with the lifting lug (13).
5. A remote sacrificial anode component according to claim 4, characterized in that: The steel frame structure (1) also includes a top frame (18) and a plurality of connecting rods (19), wherein the top end of the connecting rods (19) is connected to the top frame (18) and the bottom end is connected to the main frame (11), and the connecting rods (19) are detachably connected to a plurality of anode blocks (2), and the top frame (18) is provided with the lifting lugs (13).
6. A method for sinking and installing a remote sacrificial anode component, characterized in that: include: Step 1, prefabricate a remote sacrificial anode component as claimed in any one of claims 1 to 5, and arrange a plurality of sinking aid components (4) on the anode cable (3) according to the horizontal distance between the steel frame structure (1) and the protected structure, with adjacent sinking aid components (4) spaced 1 to 1.5 m apart, and the plurality of sinking aid components (4) being arranged at equal intervals; Step 2, wrapping the anode cable (3) around the buffer ring (14) for several turns and tying it to fix; Step 3, connecting all the sinking aid components (4) on the anode cable (3) through a rope (5), and keeping the anode cable (3) looser than the rope (5); Step 4: temporarily limit the anode cable (3) away from the end of the steel frame structure (1), lift the steel frame structure (1) by a crane (6), connect the crane hook to the steel frame structure (1) through a steel wire rope (61) and an automatic unhooking shackle (62), lower the steel frame structure (1) to an underwater installation position, and release the automatic unhooking shackle (62); Step 5: The anode cable (3) is lowered by pulling the crane (6), so that the sinking aid components (4) are sunk one by one to the underwater installation position along the direction from the steel frame structure components to the protected structure, and the end is pulled to the installation position above the water surface.
7. A method for sinking and installing a remote sacrificial anode component according to claim 6, characterized in that: In step 4, the steel frame structure (1) is lifted by a crane hook (63), and the end and the rope (5) are hooked by a crane hook (64), so that all the sinking aid components (4) remain in a suspended state, and the crane hook (63) and the crane hook (64) move synchronously.
8. The method for sinking and installing a remote sacrificial anode component according to claim 7, characterized in that: In step 5, the rope (5) is lowered and shifted by a small crane hook (64), and the anode cable (3) is pulled down.
9. The method for sinking and installing a remote sacrificial anode component according to claim 6, characterized in that: In step 4, the end and the rope (5) are limited to the platform where the crane (6) is located. In step 5, the rope (5) is lowered and shifted by the crane hook to pull the anode cable (3) downward.
10. The method for sinking and installing a remote sacrificial anode component according to claim 6, characterized in that: In step 4, the steel frame structure (1) is towed to match the underwater installation position by a towing rope (7) during the lowering process, and the underwater installation position is located by GPS.