Low-cost reusable sacrificial anode for full-sea-depth equipment

Abstract

The utility model discloses an ocean engineering and underwater robot equipment technology, and aims to provide a low-cost reusable sacrificial anode for full-sea-depth equipment, which is characterized by comprising a sacrificial anode body, and the sacrificial anode body comprises a shell which is made of titanium alloy materials and has excellent corrosion resistance and structural strength, the base is used for mounting equipment; the zinc block serves as a sacrificial anode, is fixed in the shell and is used for being in contact with seawater to generate electrochemical reaction; the polyurethane adhesive is used for filling and controlling the corrosion sectional area of the zinc block and enhancing the stability of the whole structure; the half-section circumferential side face of the shell is a cylindrical face, the other half-section circumferential side face of the shell is a polygonal face, the cylindrical face and the polygonal face are formed in an integrated transition mode, and the polygonal face is close to the outer end face of the shell. The structure is reasonable, operation is easy and convenient, and defects in the prior art are avoided; the utility model is suitable for the technical field of ocean engineering and underwater robot equipment.

Description

Technical Field

[0001] The utility model relates to a marine engineering and underwater robot equipment technology, and more specifically, to a low-cost, reusable, full-sea-depth sacrificial anode. Background Art

[0002] Sacrificial anode is an electrochemical protection technology that prevents corrosion of the protected metal by connecting a metal material with a more negative potential than the protected metal to the protected metal. In this method, the metal with a lower potential (i.e., the anode) gradually dissolves, while the metal with a higher potential (i.e., the cathode) is protected.

[0003] The current underwater sacrificial anode structure is too simple to be reused, and the installation method is not flexible enough, which brings inconvenience to underwater scientific research operations. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the utility model is to provide a low-cost, reusable, full-sea-depth sacrificial anode.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a low-cost, reusable, full-sea-depth sacrificial anode, comprising a sacrificial anode body, the sacrificial anode body comprising:

[0006] The shell is made of titanium alloy, which has excellent corrosion resistance and structural strength and is used for installation with equipment;

[0007] A zinc block, serving as a sacrificial anode and fixed in the housing, is used for contacting with seawater to produce an electrochemical reaction;

[0008] Polyurethane glue is used to fill the cross-sectional area of ​​the zinc block to control corrosion and enhance the stability of the overall structure;

[0009] The side surface of half of the shell is set as a cylindrical surface, and the side surface of the other half is set as a polygonal surface. The cylindrical surface and the polygonal surface are formed as a transitional whole, and the polygonal surface is close to the outer end surface of the shell.

[0010] The utility model is further configured as follows: the cross-section of the shell is generally concave, and an integrally formed mounting portion is coaxially provided on the outer end surface of the shell, and the inner surface of the shell is a stepped surface, including a first step surface and a second step surface, and the first step surface is close to the inner end surface of the shell, and the first step surface is provided with an internal thread for connecting with the zinc block;

[0011] The zinc block is T-shaped as a whole, and an external thread matching the internal thread is provided on the periphery of the maximum outer diameter of the zinc block, and a coaxial through hole is opened through the zinc block.

[0012] The utility model is further configured as follows: the polyurethane glue includes a first part and a second part, the first part is filled in the through hole of the zinc block, and the second part is filled between the zinc block and the shell through a simple mold, so that the end face of the zinc block with the smallest outer diameter is exposed.

[0013] The utility model is further configured as follows: the diameter of the step surface one is smaller than the diameter of the step surface two, the length of the step surface one is equal to the length of the step surface two, and the length of the minimum outer diameter of the zinc block is greater than the length of the step surface two.

[0014] The utility model is further configured as follows: the mechanical life of the sacrificial anode body is not less than 500 times, the operating temperature range is -30°C to +80°C, and the hydrostatic pressure is 127MPa.

[0015] The utility model is further configured as follows: the surface of the zinc block is specially treated to improve its adhesion with the polyurethane adhesive and enhance the stability of the overall structure.

[0016] The utility model is further configured such that the size of the internal thread can be customized according to actual conditions, so as to facilitate flexible installation.

[0017] The beneficial effects of the utility model are:

[0018] 1. Compared with the existing technology, the low-cost, reusable, full-sea-depth sacrificial anode of this utility model is designed with full consideration of the need for flexible installation. The threaded connection design between the shell and the zinc block not only enhances the stability of the structure, but also allows for adjustment according to different equipment and environments in actual applications. The size of the external thread can be customized according to specific circumstances. This feature enables the sacrificial anode to adapt to a variety of installation conditions, facilitating users to quickly install and replace it at different ocean depths and equipment configurations. This flexibility greatly improves the adaptability of the equipment. Users do not need to develop dedicated sacrificial anodes for each different application scenario, thereby saving manpower and material resources. Therefore, the flexible installation feature of this utility model not only meets the use requirements in complex marine environments, but also provides great convenience for users and ensures the efficient operation of the equipment.

[0019] 2. The low-cost, reusable, full-sea-depth equipment sacrificial anode material selection of the utility model gives it a significant economic advantage in the market; first, the shell is made of titanium alloy material. Although the raw material price of titanium alloy is relatively high, its superior corrosion resistance and high strength will effectively extend the service life and reduce the need for frequent replacement, thereby reducing long-term operating costs. At the same time, the zinc block serves as a sacrificial anode, which can effectively protect other components from corrosion during electrochemical reactions. Its material cost is relatively low. The use of polyurethane glue not only improves the stability of the structure, but also has good bonding properties, thereby improving overall durability; the reasonable combination of these materials significantly reduces production and maintenance costs, and users can enjoy higher cost-effectiveness during use. In addition, since it is designed to be reusable, when replacing the zinc block, the user only needs to replace the zinc block and perform simple maintenance, without having to replace the entire block, which further saves maintenance costs and improves economic benefits.

[0020] 3. The utility model has excellent performance in reusability and provides support for environmental protection. Traditional sacrificial anodes cannot be reused during use and often need to be replaced frequently, which increases the environmental burden. The design of the utility model allows users to replace the zinc block after the zinc block is consumed and continue to use the shell, avoiding the scrapping of the entire piece. This reusable design concept not only reduces waste generation, but also reduces resource waste. At the same time, the selection and processing process of polyurethane glue have been optimized so that it will not have a negative impact on the marine environment during use, thereby further protecting the marine ecosystem. Through this environmentally friendly design and manufacturing method, the utility model can meet industrial needs while actively responding to global environmental protection.

[0021] 4. The present invention not only pursues flexibility and economy in design, but also focuses on reliable overall performance. The mechanical life of the sacrificial anode body is not less than 500 times, the operating temperature range is wide (-30°C to +80°C), and it can withstand a hydrostatic pressure of up to 127MPa, ensuring that it can still work stably in extreme marine environments. This high-standard performance requirement enables extremely high reliability in practical applications and greatly reduces the risk of failure. In addition, the special treatment technology of the zinc block surface improves its adhesion with polyurethane glue, further enhancing the stability of the overall structure; the structure is simple and reasonable, easy to manufacture, easy to operate, avoiding the defects of the existing technology, and is suitable for promotion and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the low-cost, reusable, full-sea-depth sacrificial anode equipment of the utility model.

[0023] Figure 2 This is a cross-sectional structural diagram of the low-cost, reusable, full-sea-depth sacrificial anode equipment of the utility model.

[0024] Figure 1-2 Figure numerals: 1. housing; 2. zinc block; 3. mounting portion; 4. step surface 1; 5. step surface 2; 6. through hole; 7. first part; 8. second part. DETAILED DESCRIPTION

[0025] Reference Figure 1-2 The embodiments of the present invention are further described.

[0026] For ease of explanation, spatial relative terms such as "upper", "lower", "left", and "right" are used in the embodiments to illustrate the relationship between one element or feature shown in the figures and another element or feature. It should be understood that, in addition to the orientation shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0027] Moreover, relational terms such as “first” and “second” are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0028] Figures 1 to 2 A low-cost, reusable, full-sea-depth sacrificial anode is shown, comprising a sacrificial anode body, the sacrificial anode body comprising:

[0029] Shell 1 is made of titanium alloy material with excellent corrosion resistance and structural strength, and is used for installation with equipment;

[0030] The zinc block 2, serving as a sacrificial anode and fixed in the housing 1, is used for contacting with seawater to generate an electrochemical reaction;

[0031] Polyurethane glue, used to fill the cross-sectional area of ​​the zinc block 2 to control corrosion and enhance the stability of the overall structure;

[0032] The side surface of half of the shell 1 is set as a cylindrical surface, and the side surface of the other half is set as a polygonal surface. The cylindrical surface and the polygonal surface are formed in an integrated transition, and the polygonal surface is close to the outer end surface of the shell 1;

[0033] The purpose of sacrificial anode is achieved by contacting the seawater with the zinc block 2 .

[0034] The low-cost, reusable, full-sea-depth equipment sacrificial anode material selection of the utility model gives it a significant economic advantage in the market. First, the shell 1 is made of titanium alloy material. Although the raw material price of titanium alloy is relatively high, its superior corrosion resistance and high strength will effectively extend the service life and reduce the need for frequent replacement, thereby reducing long-term operating costs. At the same time, the zinc block 2 acts as a sacrificial anode, which can effectively protect other components from corrosion during the electrochemical reaction, and its material cost is relatively low.

[0035] The cross-section of the shell 1 is generally concave, and an integrally formed mounting portion 3 is coaxially provided on the outer end surface of the shell 1. The inner surface of the shell 1 is a stepped surface, including a step surface 1 4 and a step surface 2 5. The step surface 1 4 is close to the inner end surface of the shell 1. The step surface 1 4 is provided with an internal thread for connecting with the zinc block 2.

[0036] The zinc block 2 is T-shaped as a whole, and an external thread matching the internal thread is provided around the maximum outer diameter of the zinc block 2. A coaxial through hole 6 is provided through the zinc block 2. The size of the internal thread can be customized according to actual conditions, facilitating flexible installation.

[0037] Compared with the existing technology, the low-cost, reusable, full-sea-depth sacrificial anode of the utility model is designed with full consideration of the need for flexible installation. The threaded connection design between the shell 1 and the zinc block 2 not only enhances the stability of the structure, but also allows adjustments to be made according to different equipment and environments in actual applications. The size of the external thread can be customized according to specific circumstances. This feature enables the sacrificial anode to adapt to a variety of installation conditions, making it convenient for users to quickly install and replace it at different ocean depths and equipment configurations. This flexibility greatly improves the adaptability of the equipment. Users do not need to develop dedicated sacrificial anodes for each different application scenario, thereby saving manpower and material resources. Therefore, the flexible installation feature of the utility model not only meets the use requirements in complex marine environments, but also provides great convenience for users and ensures the efficient operation of the equipment.

[0038] The polyurethane glue includes a first part 7 and a second part 8. The first part 7 is filled in the through hole 6 of the zinc block 2, and the second part 8 is filled between the zinc block 2 and the shell through a simple mold, so that the end surface of the zinc block 2 with the smallest outer diameter is exposed.

[0039] The use of polyurethane glue not only improves the stability of the structure, but also has good bonding properties, thereby improving the overall durability. The rational combination of these materials significantly reduces production and maintenance costs, and users can enjoy higher cost-effectiveness during use. In addition, since it is designed to be reusable, when replacing zinc block 2, users only need to replace zinc block 2 and perform simple maintenance without having to replace the entire block, which further saves maintenance costs and improves economic benefits.

[0040] The diameter of the step surface 1 4 is smaller than the diameter of the step surface 2 5 , the length of the step surface 1 4 is equal to the length of the step surface 2 5 , and the length of the minimum outer diameter of the zinc block 2 is greater than the length of the step surface 2 5 ;

[0041] The mechanical life of the sacrificial anode body is not less than 500 times, the operating temperature range is -30°C to +80°C, and the hydrostatic pressure is 127MPa;

[0042] This utility model not only pursues flexibility and economy in design, but also focuses on reliable overall performance. The mechanical life of the sacrificial anode body is not less than 500 times, the operating temperature range is wide (-30℃ to +80℃), and it can withstand hydrostatic pressure up to 127MPa, ensuring that it can still work stably in extreme marine environments. This high-standard performance requirement makes it extremely reliable in actual applications and greatly reduces the risk of failure.

[0043] The surface of the zinc block 2 is specially treated to improve its adhesion with the polyurethane adhesive and enhance the stability of the overall structure;

[0044] In addition, the special treatment technology on the surface of the zinc block 2 improves its adhesion with the polyurethane glue, further enhancing the stability of the overall structure; the structure is simple and reasonable, easy to manufacture, easy to operate, avoids the defects of the existing technology, and is suitable for promotion and implementation.

[0045] Manufacturing method:

[0046] Select titanium alloy as the material for manufacturing the shell 1, zinc block 2 as the material for manufacturing the internal sacrificial anode, and polyurethane glue as the filling material; then, the shell 1 and the zinc block 2 are processed and formed by die-casting or processing to ensure that they meet the design requirements, and the shell 1 and the zinc block 2 are cleaned and pretreated to improve the adhesion of the subsequent filling polyurethane glue; the formula of the polyurethane glue is configured as needed to ensure its bonding strength and corrosion resistance; the processed zinc block 2 is fixedly connected to the shell 1 by threading to ensure that the connection is firm; use a syringe to evenly fill the prepared polyurethane glue into the through hole 6 of the zinc block 2 until it is filled. After the zinc block 2 and the shell are filled and solidified, the first part 7 is formed. Then, the zinc block 2 and the shell are evenly sealed with polyurethane glue using a simple mold. After the polyurethane glue is solidified, the second part 8 is formed. The maximum diameter of the polyurethane glue of the second part 8 is equal to the diameter of the outer cylindrical surface of the shell 1. At the same time, the end face of the polyurethane glue of the second part 8 is on the same horizontal plane as the end face of the minimum outer diameter of the zinc block 2. After solidification, the simple mold can be removed. The cured sacrificial anode body is tested accordingly to ensure that it meets the design standards. The qualified sacrificial anode body is marked and packaged, and instructions for use are attached.

[0047] The present invention excels in reusability and provides support for environmental protection. Traditional sacrificial anodes cannot be reused during use and often need to be replaced frequently, which increases the environmental burden. The design of the present invention allows the user to replace the zinc block 2 after the zinc block 2 is consumed and continue to use the shell 1, avoiding the scrapping of the entire piece. This reusable design concept not only reduces waste generation, but also reduces resource waste. At the same time, the selection and processing process of the polyurethane glue are optimized so that it will not have a negative impact on the marine environment during use, thereby further protecting the marine ecosystem. Through this environmentally friendly design and manufacturing method, the present invention can meet industrial needs while actively responding to global environmental protection.

[0048] The present invention also excels in safety and reliability. During the design process, various risk factors that may arise in the marine environment, such as high pressure, corrosion, collision, etc., are fully considered. The outer shell 1 is made of titanium alloy material, which not only has strong corrosion resistance, but also has excellent structural stability under high pressure conditions, and can effectively protect internal components from damage. In addition, the design of the zinc block 2 enables it to maintain stable release during the electrochemical reaction and will not produce excessive hydrogen, thereby reducing the risk of explosion. In actual applications, it has undergone rigorous testing to ensure that it can still work reliably under various extreme conditions, which is crucial to ensuring the safety of marine engineering.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-cost, reusable, full-sea-depth sacrificial anode, characterized by: The invention comprises a sacrificial anode body, the sacrificial anode body comprising: The housing (1) is made of titanium alloy material, has excellent corrosion resistance and structural strength, and is used for installation with the equipment; A zinc block (2) is fixed in the housing (1) as a sacrificial anode and is used for contacting with seawater to generate an electrochemical reaction; Polyurethane glue, used to fill the cross-sectional area of ​​the zinc block (2) to control corrosion and enhance the stability of the overall structure; Half of the circumferential side surface of the shell (1) is configured as a cylindrical surface, and the other half of the circumferential side surface is configured as a polygonal surface. The cylindrical surface and the polygonal surface are formed in an integrated transition, and the polygonal surface is close to the outer end surface of the shell (1).

2. The low-cost, reusable, full-sea-depth sacrificial anode according to claim 1, characterized in that: The shell (1) has a concave cross-section as a whole, and an integrally formed mounting portion (3) is coaxially provided on the outer end surface of the shell (1). The inside of the shell (1) is a stepped surface, including a first stepped surface (4) and a second stepped surface (5), and the first stepped surface (4) is close to the inner end surface of the shell (1). The first stepped surface (4) is provided with an internal thread for connecting with the zinc block (2); The zinc block (2) is T-shaped as a whole, and an external thread matching the internal thread is provided on the periphery of the maximum outer diameter of the zinc block (2). A coaxial through hole (6) is provided through the zinc block (2).

3. The low-cost, reusable, full-sea-depth sacrificial anode according to claim 1, characterized in that: The polyurethane glue comprises a first part (7) and a second part (8), wherein the first part (7) is filled in the through hole (6) of the zinc block (2), and the second part (8) is filled between the zinc block (2) and the shell through a simple mold, so that the end face of the zinc block (2) with the smallest outer diameter is exposed.

4. The low-cost, reusable, full-sea-depth sacrificial anode according to claim 2, characterized in that: The diameter of the step surface 1 (4) is smaller than the diameter of the step surface 2 (5), the length of the step surface 1 (4) is equal to the length of the step surface 2 (5), and the length of the minimum outer diameter of the zinc block (2) is greater than the length of the step surface 2 (5).

5. The low-cost, reusable, full-sea-depth sacrificial anode according to claim 1, characterized in that: The mechanical life of the sacrificial anode body is not less than 500 times, the operating temperature range is -30°C to +80°C, and the hydrostatic pressure is 127MPa.

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