Marine anti-corrosion integrated structure reference electrode

Abstract

The utility model discloses a marine anti-corrosion integrated structure reference electrode, which comprises an electrode body, a reference shell is molded at one end of the electrode body through polyurethane casting, the reference shell comprises a shell body and a flange connecting disc, a glue pouring cavity is arranged in the shell body corresponding to the end part of the electrode body, and the flange connecting disc is arranged in the glue pouring cavity. A wire nose is arranged in the glue pouring cavity, one end of the wire nose is connected with the electrode body, the other end of the wire nose is connected with a cable, one end of the cable extends out of the glue pouring cavity, and sealant wrapping the wire nose and the cable is further arranged in the glue pouring cavity. The utility model has the advantages of simple assembly, good insulation and waterproof effects, improved use quality and prolonged service life.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power generation, in particular to a marine anti-corrosion integrated structural reference electrode. Background Art

[0002] Offshore wind power generation technology mainly utilizes the abundant wind energy resources in the ocean and converts wind energy into electrical energy through wind turbines, and has huge development potential.

[0003] The reference electrode for offshore wind turbines is a key component in impressed current cathodic protection (ICCP) systems, primarily used to prevent corrosion of wind turbine foundation structures. ICP is a type of electrochemical protection method that uses an external DC power supply and an auxiliary anode to force electrons from seawater to the protected metal, raising the potential of the protected metal structure to a higher level than the surrounding environment. The reference electrode serves two purposes: first, it measures the potential of the protected structure to monitor the effectiveness of the protection; second, it provides a control signal to the automatically controlled potentiostat, regulating the output current to ensure optimal protection of the structure.

[0004] The reference electrode used in the seawater wind power impressed current cathodic protection system usually adopts a carbon steel metal shell, and the outer layer of the electrode body is also covered with an insulating shell. The three are a large ring inside a small ring structure, and are connected by threads. Its waterproof sealing effect is poor. After long-term operation, there is a chance that seawater will penetrate through the connection gap, which poses a greater risk. The reference electrode shell adopts a carbon steel structure, which is not resistant to seawater corrosion and needs to be painted or sprayed for corrosion protection, which increases processing steps and production costs. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a marine anti-corrosion integrated structure reference electrode, which is simple to assemble, has good insulation and waterproof effects, and improves the use quality and service life.

[0006] In order to solve the above technical problems, the utility model provides a marine corrosion-resistant integrated structural reference electrode, including an electrode body, one end of the electrode body is molded with a reference shell by polyurethane casting, the reference shell includes a shell body and a flange connection plate, a glue pouring cavity is provided in the shell body corresponding to the end of the electrode body, a wire nose is provided in the glue pouring cavity, one end of the wire nose is connected to the electrode body, and the other end is connected to the cable, one end of the cable extends out of the glue pouring cavity, and the glue pouring cavity is also provided with a sealant that wraps the wire nose and the cable.

[0007] Furthermore, the glue pouring cavity is an open structure, an end cover is provided on the open end of the glue pouring cavity, and a gland for the cable to pass through is provided on the end cover.

[0008] Furthermore, the end cap is threadedly connected to the inner wall of the glue-filling cavity, and the end cap is protrudingly arranged on the surface of the reference shell.

[0009] Furthermore, an annular groove or an annular boss is provided on the surface of the electrode body wrapped by the reference shell.

[0010] Furthermore, the annular groove and the annular boss are both trapezoidal structures.

[0011] Furthermore, the shell body is arranged on one side of the electrode body as a truncated cone structure.

[0012] Furthermore, the electrode body is provided with a step portion on one side of the shell body, the small end of the step portion is connected to the shell body, and the shell body is fitted with the bottom surface of the step portion.

[0013] Furthermore, a relief recess is provided on the surface of the shell body at a side away from the electrode body.

[0014] Beneficial effects of the utility model:

[0015] The reference housing is made of cast polyurethane material, which is a polymer material with good electrical insulation properties. Compared with traditional carbon steel housings, it has good seawater corrosion resistance and does not require other anti-corrosion treatments.

[0016] By using polyurethane materials instead of metal materials, there is no need for a multi-section structure with threaded sleeves, which reduces the number of reference electrode parts and joints, avoids the situation where there are too many joints and poor sealing effects, and reduces the number of production and assembly steps, thereby improving production efficiency and quality.

[0017] An annular groove or an annular boss is provided on the outer circle of one end of the electrode body. The contact area between the electrode body and the reference housing is large, which improves the bonding effect between the two and improves the sealing performance. Even if the outermost seal fails, the groove or boss still has a certain water-isolating effect, further improving the sealing performance.

[0018] An end cap is added to the sealant filling location, which can effectively increase the filling volume of the sealant, improve corrosion resistance and seawater resistance, and also serve as a layer to block seawater. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the utility model from a first perspective;

[0020] Figure 2 This is a schematic structural diagram of the second viewing angle of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the connection between the middle shell body and the electrode body;

[0023] Figure 5 It is a schematic diagram of the structure of the step portion of the electrode body of the utility model located on one side of the shell body. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1 to 5 As shown, an embodiment of the marine anti-corrosion integrated structural reference electrode of the present invention includes an electrode body 1, and a reference shell 2 is formed by polyurethane casting at one end of the electrode body, that is, the reference shell is directly cast on one end of the electrode body, and the reference shell includes a shell body 3 and a flange connection plate 4, the flange connection plate is used as a lock on the mounting structure, and the shell body is used as a transfer body. A glue cavity is provided in the shell body corresponding to the end of the electrode body, and a wire nose 5 is provided in the glue cavity. One end of the wire nose is connected to the electrode body, and the other end is connected to the cable 6. One end of the cable extends out of the glue cavity, and a sealant 7 for wrapping the wire nose and the cable is also provided in the glue cavity to prevent seawater from contacting the metal conductor and causing corrosion.

[0026] Sealant can be poured directly into the cavity, but this presents issues such as unsightly appearance and limited fill volume. Therefore, the cavity is designed with an open structure. An end cap 8 is provided at the open end, threadedly connected to the cavity's inner wall. The end cap protrudes from the reference housing, creating a sealant storage space within the end cap, significantly increasing the fill volume. A cable gland 9 is provided on the end cap to provide a seal and prevent damage from friction between the cable and the end cap.

[0027] In order to improve the connection firmness between the reference shell and the electrode body, an annular groove 10 or an annular boss is provided on the surface of the electrode body wrapped by the reference shell. The reference shell after casting not only has a chemical bonding effect, but also has a mechanical connection effect, which greatly improves the overall connection strength and stability; specifically, the electrode body and the reference shell have a large contact area, which can effectively improve the bonding effect between the two and improve the sealing performance; and the groove or boss also has a certain water-isolating effect, which can further improve the sealing performance. The annular groove and the annular boss are both trapezoidal structures to reduce dead angles during casting. A step portion 11 is also provided on one side of the electrode body located on the shell body. The small end of the step portion is connected to the shell body, and the shell body and the bottom surface of the step portion are fitted together. It can ensure that when seawater impacts this joint, the force is applied by the end face of the shell body and the surface of the electrode body, and will not directly act on the joint.

[0028] Based on the above structure, during preparation, the electrode body is first processed into the required shape, that is, an annular groove or an annular boss is processed, and adhesive is brushed on the part that is bonded to the polyurethane; then it is placed in a casting mold, and polyurethane is poured around the electrode body and allowed to solidify;

[0029] Then, insert the cable into the gland and end cap in sequence, and crimp the wire nose at one end. Of course, the wire nose can also be other types of connectors. Then, fix it to the tail end of the electrode body through the wire nose, and you can use screws to lock it.

[0030] Then, the sealant is poured in for the first time until the liquid level approaches the end face of the reference housing, and the end cap is screwed into the reference housing before the sealant solidifies; the sealant is poured in again from the opening at the tail of the end cap until the liquid level is flush with the end face of the rear end cap, and the gland is screwed into the end cap before the second injection of sealant solidifies, and the gland is locked to fix the cable; then it is left to stand until the sealant is completely solidified, and the reference electrode production is completed.

[0031] The housing body is designed as a truncated cone on one side of the electrode body, ensuring overall strength while effectively reducing the amount of polyurethane used. A relief recess 12 is provided on the surface of the housing body away from the electrode body. This effectively reduces the contact area between the reference housing and the mounting structure during installation, preventing poor installation quality due to uneven surfaces.

[0032] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A marine anti-corrosion integrated structure reference electrode, characterized in that: It includes an electrode body, one end of which is formed with a reference shell by polyurethane casting, the reference shell including a shell body and a flange connection plate, a glue pouring cavity is provided in the shell body corresponding to the end of the electrode body, a wire nose is provided in the glue pouring cavity, one end of the wire nose is connected to the electrode body, and the other end is connected to the cable, one end of the cable extends out of the glue pouring cavity, and the glue pouring cavity is also provided with a sealant that wraps the wire nose and the cable.

2. The marine anti-corrosion integrated structure reference electrode according to claim 1, characterized in that: The glue pouring cavity is an open structure, an end cover is provided on the open end of the glue pouring cavity, and a cable gland for the cable to pass through is provided on the end cover.

3. The marine anti-corrosion integrated structure reference electrode according to claim 2, characterized in that: The end cover is threadedly connected to the inner wall of the glue-filling cavity, and the end cover is protrudingly arranged on the surface of the reference shell.

4. The marine anti-corrosion integrated structure reference electrode according to claim 1, characterized in that: An annular groove or an annular boss is provided on the surface of the electrode body wrapped by the reference shell.

5. The marine anti-corrosion integrated structure reference electrode according to claim 4, characterized in that: The annular groove and the annular boss are both trapezoidal structures.

6. The marine anti-corrosion integrated structure reference electrode according to claim 1, characterized in that: The shell body is located on one side of the electrode body and is configured as a frustum structure.

7. The marine anti-corrosion integrated structure reference electrode according to claim 1, characterized in that: The electrode body is provided with a step portion on one side of the shell body, the small end of the step portion is connected to the shell body, and the shell body is fitted with the bottom surface of the step portion.

8. The marine anti-corrosion integrated structure reference electrode according to claim 1, characterized in that: A relief recess is provided on the surface of the shell body at a side away from the electrode body.

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