Marine anti-corrosion sheet-shaped auxiliary anode

Abstract

The utility model discloses a marine anti-corrosion sheet-shaped auxiliary anode which comprises a box body shell and a sheet-shaped anode, a liquid passing through hole is formed in the surface of the box body shell, the sheet-shaped anode is arranged in the box body shell, and a binding post is arranged in the middle of the surface of one side of the sheet-shaped anode. A sealing connecting pipe is arranged on the outer surface of the box body shell corresponding to the binding post, the binding post penetrates through the box body shell into the sealing connecting pipe and is connected with an anode cable, and sealant is arranged in the sealing connecting pipe. According to the utility model, larger current density can be provided, the manufacturing cost is effectively reduced, and good sealing performance and super-long service life are provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ocean engineering, specifically relates to a marine anticorrosion sheet -shaped auxiliary anode. BACKGROUND

[0002] Ocean steel structure includes offshore wind turbine, cross-sea bridge, ocean oil and gas platform etc., these steel structures are long-term immersed in seawater, create the condition for the occurrence and development of corrosion. The auxiliary anode for offshore wind power generation is the key component in the impressed current cathodic protection system, mainly used for preventing the corrosion of the immersed ocean steel structure in seawater; the impressed current cathodic protection method is one of the electrochemical protection methods, and the electrode connected with the positive pole of the direct current power supply in the impressed current cathodic protection system is called auxiliary anode. Its role is to make the impressed cathode current flow from the anode to the protected body through the medium, forming a current loop. The electrochemical performance, mechanical performance, process performance of the auxiliary anode and the shape and arrangement method of the anode all have important influence on the effect of cathodic protection.

[0003] In the prior art, the auxiliary anode for impressed current cathodic protection system usually adopts a rod-shaped anode tube, and the anode rod substrate usually adopts titanium alloy material, which is processed through a titanium alloy sheet coiling process, and the outer surface is sprayed with noble metal oxide. The coiling process is complex, and the manufacturing cost is high. Moreover, only the outer surface of the titanium alloy sheet is in contact with seawater after the coiling process, and the current density is small, which affects the use effect. SUMMARY

[0004] The utility model wants to solve the technical problem to provide a kind of marine anticorrosion sheet -shaped auxiliary anode, can provide greater current density, effectively reduce manufacturing cost, provide good sealing and super-long service life.

[0005] To solve the above technical problems, the utility model provides a kind of marine anticorrosion sheet -shaped auxiliary anode, including box body shell and sheet -shaped anode, the box body shell surface is equipped with liquid through hole, the sheet -shaped anode is set in box body shell, the sheet -shaped anode one side surface middle part is equipped with binding post, the binding post corresponding box body shell outer surface is equipped with sealing connection pipe, the binding post passes through box body shell to sealing connection pipe and is connected with anode cable, sealing glue is provided in sealing connection pipe.

[0006] Further, the box body shell includes upper half shell and lower half shell, the upper half shell and lower half shell are locked by bolt, the cavity is formed between the inner wall of the upper half shell and lower half shell, the sheet -shaped anode is arranged in the cavity, and the binding post is vertically arranged on the surface of the sheet -shaped anode and passes through the upper half shell to the sealing connection pipe.

[0007] Further, the lower half shell is provided with a side wall on the outer periphery, the upper half shell is in abutment with the top surface of the side wall, and the bolt passes through the upper half shell and the side wall and is locked.

[0008] Further, the inner wall of the sealing connecting pipe is provided with a fixing plate and a mounting ring on the two ends along the axial direction respectively, the middle part of the fixing plate is provided with an avoiding hole, the surface of the box body shell is provided with a hollow connecting column corresponding to the avoiding hole, the hollow connecting column is provided with a shell fixing nut, the shell fixing nut is used for extruding the fixing plate to the surface of the box body shell, the mounting ring is fixed with an end plate, the end plate is provided with a Luer, and the anode cable extends to the outside through the Luer.

[0009] Further, the terminal post passes through the hollow connecting column and is connected with the anode fixing nut, the terminal post is provided with a first boss, the first boss is in abutment with the inner wall of the box body shell and is limited, and the anode fixing nut is in abutment with the end part of the hollow connecting column and cooperates with the first boss to fix the terminal post.

[0010] Further, the fixing plate is provided with a glue pouring through hole.

[0011] Further, the sealing connecting pipe is provided with a sealing ring on the end part of the side of the box body shell.

[0012] Further, a rubber gasket is arranged between the middle part of the other side surface of the sheet-shaped anode and the inner wall of the box body shell.

[0013] Further, the box body shell is made of plastic.

[0014] Further, the sealing connecting pipe is provided with a flange plate on the end part away from the box body shell.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The sheet-shaped anode is cut from a whole sheet, does not need to be curled and sealed at the end part, has less material waste and reduces material cost.

[0017] 2. The sheet-shaped anode does not need secondary forming processing after cutting, only needs to be welded with a terminal post, reduces processing steps and reduces production cost.

[0018] 3. The sealing connecting pipe has a large space for filling sealing glue, is not easy to permeate at sea, greatly reduces the possibility of corrosion of the wiring place by seawater, and greatly improves the service life.

[0019] 4. Compared with the traditional rod-shaped structure processed from a curled sheet, the sheet-shaped structure directly processed from a titanium alloy sheet with the same area and thickness has a larger contact area with seawater, both surfaces of the sheet-shaped structure can play a role, can provide a larger current density, and has a larger area for protecting the steel structure from corrosion. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the overall structure schematic diagram of the utility model;

[0021] Figure 2 is the cross section structure schematic diagram of the utility model Figure 1 ;

[0022] Figure 3 is the box shell structure schematic diagram of the utility model installed with the sheet anode;

[0023] Figure 4 is the sheet anode and anode cable connection structure schematic diagram of the utility model;

[0024] Figure 5 is the sealing connection pipe cross section structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0026] Referring to Figures 1 to 5 The utility model discloses an embodiment of marine anticorrosion sheet auxiliary anode, including box shell 1 and sheet anode 2, the box shell surface is set up and passes through the liquid through -hole 3, the sheet anode is set up in the box shell, and the sheet anode one side surface middle part is provided with binding post 4, and the binding post corresponding box shell outer surface is provided with sealing connection pipe 5, and the binding post passes through the box shell to sealing connection pipe and is connected with anode cable 6, and sealing connection pipe is provided with sealant 7, and the sealant effectively seals and fixes the binding post and anode cable wiring position, avoids seawater erosion, and guarantees the effectiveness of connection.

[0027] The box shell inside is the cavity structure, and the sheet anode is in the cavity structure, and the liquid through -hole on the box shell surface can make seawater flow into the box shell inside from the outside and flow out to the outside from the box shell inside, and the sheet anode contacts seawater, and discharges, and the structure of sheet anode is flat sheet, and both surfaces can contact seawater, and the contact area with seawater is much larger than the rod structure, and for the liquid through -hole, it can be set up on the upper surface, the lower surface and the side surface of the box shell, so that the flow of seawater in any direction can pass through the box shell.

[0028] And the sheet anode can be cut directly from the titanium alloy sheet, without curling and welding operation, and the processing convenience is greatly improved, and the structure can be rectangular, which greatly improves the material utilization rate and avoids waste, and the outer surface of the titanium alloy sheet can be sprayed with noble metal oxide to ensure the service life of the sheet anode.

[0029] The box shell includes an upper half shell 8 and a lower half shell 9, which are locked by bolts 10, and a cavity is formed between the inner walls of the upper half shell and the lower half shell. Specifically, a side wall 11 is arranged on the outer periphery of the lower half shell, and the upper half shell abuts against the top surface of the side wall. The bolts pass through the upper half shell and the side wall and are locked. The installation is simple and reliable. The surfaces of the upper half shell, the lower half shell and the side wall are all provided with liquid passing holes. The sheet-shaped anode is arranged in the cavity. The terminal post is vertically arranged on the surface of the sheet-shaped anode and passes through the upper half shell and is arranged in the sealing connection pipe. The box shell can be made of seawater corrosion resistant and insulating hard plastic, which effectively prevents the corrosion of seawater on the metal shell, and the surface does not need to be provided with an insulating coating. The distance between the upper half shell, the lower half shell and the sheet-shaped anode can be greatly reduced, effectively reducing the overall size.

[0030] The sealing connection pipe is made of steel metal by welding and is sprayed with a seawater corrosion resistant coating. It needs to have good connection strength and does not directly contact the sheet-shaped anode, so the metal material can also meet the use requirements. A flange plate 24 is arranged on the end of the sealing connection pipe away from the box shell for locking the connection. In order to ensure that the sealing connection pipe can be conveniently assembled and connected with the box shell, a fixing plate 12 and a mounting ring 13 are arranged on the inner wall of the sealing connection pipe in the axial direction. An avoiding hole 14 is formed in the middle of the fixing plate. A hollow connection column 15 is arranged on the surface of the box shell corresponding to the avoiding hole. A shell fixing nut 16 is arranged on the hollow connection column. The avoiding hole in the fixing plate is directly sleeved on the hollow connection column, and then the shell fixing nut is locked, so that the shell fixing nut generates a pressing force in the direction of the fixing plate. Finally, the fixing plate and the sealing connection pipe can be locked and clamped and fixed on the upper half shell of the box shell by the shell fixing nut. Since it is abuttingly fixed, a sealing ring 22 is also arranged on the end of the sealing connection pipe on the side of the box shell. The sealing ring can form a good sealing effect between the sealing connection pipe and the upper half shell, and can assist in fixing, so that the fixing effect is better.

[0031] The sealing connection pipe is abuttingly fixed with the upper half shell, and the surface of the upper half shell has a large contact area. Therefore, the diameter of the sealing connection pipe can be increased, so that the space for filling the sealing glue inside the sealing connection pipe is large. In use, more sealing glue can ensure that seawater is not easy to penetrate, greatly reducing the possibility of corrosion of the connection by seawater, and greatly improving the service life.

[0032] The mounting ring is fixed with an end plate 17, and a gland 18 is arranged on the end plate. The anode cable extends to the outside through the gland. The end plate is used to effectively fix and close the sealing glue, and the mounting position of the gland can also be provided through the end plate, so as to ensure the position of the anode cable outlet and avoid the connection from being invalid due to pulling during seawater flow.

[0033] Since the sealing connecting pipe needs to be filled with glue, and a fixing plate is also provided, the fixing plate will prevent the glue from flowing between the fixing plate and the upper half shell, so a glue filling through hole 21 is provided on the fixing plate, and the glue flows from the glue filling through hole into the space between the fixing plate and the upper half shell, thereby providing better sealing effect and connection strength.

[0034] The wire post passes through the hollow connecting column and is connected with the anode fixing nut 19, and a first boss 20 is arranged on the wire post, which is limited by the inner wall of the box body shell, and the anode fixing nut is limited by the end of the hollow connecting column and cooperates with the first boss to fix the wire post, thereby achieving good assembly positioning effect and preventing shaking during use. In order to facilitate assembly, a rubber gasket 23 is arranged between the other side surface of the sheet-shaped anode and the inner wall of the box body shell, and when the sheet-shaped anode is placed in the box body shell, the rubber gasket can tightly abut the sheet-shaped anode towards the upper half shell, thereby facilitating locking of the anode fixing nut and providing better support and fixing effect.

[0035] The preparation method of the above structure is as follows: first, the wire post of the sheet-shaped anode is inserted into the hollow connecting column on the upper half shell, and the rubber gasket is placed at the center of the lower half shell, and a boss can be arranged at this position to facilitate accurate installation of the rubber gasket, then the angle of the sheet-shaped anode and the inner wall of the box body shell is adjusted to align the angle of the sheet-shaped anode, and the upper half shell and the lower half shell are locked by bolts.

[0036] Then, the sealing glue is filled into the gap between the wire post and the hollow connecting column, and a second boss can be arranged on the wire post to ensure a suitable glue filling space. After completion, the insulating gasket is placed and locked by the anode fixing nut. At this time, the connection between the box body shell and the sheet-shaped anode is completed.

[0037] Next, an O-shaped sealing ring is placed on the lower end surface of the sealing connecting pipe, the assembled sheet-shaped anode and box body shell are inserted into the avoiding hole of the fixing plate at the lower part of the sealing connecting pipe, and the sealing connecting pipe is tightly pressed by a weight, the sealing glue is poured until the gap between the fixing plate and the upper half shell is filled, and then the shell fixing nut is completely locked.

[0038] The anode cable is inserted into the gland, the end plate, and the copper nose in sequence, and is crimped, the connected cable and the wire post of the sheet-shaped anode are locked by a nut, then the sealing glue is continuously poured until the liquid surface is close to the installation position of the end plate, then the end plate is locked by a nut, and a layer of sealing glue is poured on the end surface, and after the sealing glue is completely solidified, the assembly is completed.

[0039] The auxiliary anode described in the present application adopts a sheet-shaped anode, which can increase the contact area with seawater, provide greater current density, effectively optimize the production process, reduce the manufacturing cost, and provide better sealing performance and ultra-long service life compared with a rod-shaped anode.

[0040] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or transformations made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A marine anti-corrosion sheet-like auxiliary anode, characterized by, The utility model provides a box body shell and sheet anode, the box body shell surface is equipped with liquid through -hole, the sheet anode is arranged in the box body shell, the sheet anode one side surface middle part is equipped with binding post, the binding post corresponding box body shell outer surface is equipped with sealed connecting pipe, the binding post passes through the box body shell to sealed connecting pipe and is connected with anode cable, the sealed connecting pipe is equipped with sealing glue.

2. The marine anti-corrosion sheet-like auxiliary anode according to claim 1, wherein The box body shell includes an upper half shell and a lower half shell, the upper half shell and the lower half shell are locked by bolts, a cavity is formed between the inner walls of the upper half shell and the lower half shell, the sheet anode is arranged in the cavity, the binding post is vertically arranged on the surface of the sheet anode and passes through the upper half shell to the sealed connecting pipe.

3. The marine anti-corrosion sheet-like auxiliary anode according to claim 2, wherein The lower half shell is provided with a side wall on the outer periphery, the upper half shell abuts against the top surface of the side wall, the bolt passes through the upper half shell and the side wall and is locked, and the surfaces of the upper half shell, the lower half shell and the side wall are provided with liquid through-holes.

4. The marine anti-corrosion sheet-like auxiliary anode according to claim 1, wherein The inner wall of the sealed connecting pipe is provided with a fixed plate and a mounting ring on the two ends in the axial direction respectively, the fixed plate is provided with an avoiding hole in the middle part, the surface of the box body shell is provided with a hollow connecting column corresponding to the avoiding hole, the hollow connecting column is provided with a shell fixing nut, the shell fixing nut is used for extruding the fixed plate to the surface of the box body shell, the mounting ring is fixed with an end plate, the end plate is provided with a luer, and the anode cable is stretched out to the outside through the luer.

5. The marine anti-corrosion sheet-like auxiliary anode according to claim 4, wherein The binding post passes through the hollow connecting column and is connected with the anode fixing nut, the binding post is provided with a first boss, the first boss abuts against the inner wall of the box body shell and is limited, the anode fixing nut abuts against the end part of the hollow connecting column and cooperates with the first boss to fix the binding post.

6. The marine anti-corrosion sheet-like auxiliary anode according to claim 4, wherein The fixed plate is provided with a glue pouring through-hole.

7. The marine anti-corrosion sheet-like auxiliary anode according to claim 4, wherein The sealed connecting pipe is provided with a sealing ring on the end part on one side of the box body shell.

8. The marine anti-corrosion sheet-like auxiliary anode according to claim 1, wherein A rubber gasket is arranged between the middle part of the other side surface of the sheet anode and the inner wall of the box body shell.

9. The marine anti-corrosion sheet-like auxiliary anode according to claim 1, wherein The box body shell is made of plastic.

10. The marine anti-corrosion sheet-like auxiliary anode according to claim 1, wherein The end part of the sealed connecting pipe away from the box body shell is provided with a flange plate.

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