Water environment auxiliary anode fixing and supporting piece

Abstract

The utility model provides a water environment auxiliary anode fixing and supporting piece, which relates to the technical field of cathode protection equipment, is used for fixing an auxiliary anode, and comprises a first sleeve with an anti-corrosion function, a telescopic supporting rod and a second sleeve. And meanwhile, in order not to influence the absorption of the protection current, the fixed supporting pieces are all made of a water-resistant non-metal material. Wherein the telescopic supporting rod is connected between the first sleeve and the second sleeve, the first sleeve is used for sleeving the outer side of the auxiliary anode, the second sleeve can be opened and closed so as to sleeve a protected metal structure, and the metal structure is used for providing a supporting point for the auxiliary anode. A certain distance is kept between the protected metal structure and the auxiliary anode, and the possibility that the protection current of the protected metal structure is too large or too small is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cathode protection equipment, in particular to a water environment auxiliary anode fixing support. Background Art

[0002] The cathodic protection system of metal structures in the water-sealed environment is suitable for an impressed current cathodic protection system due to the small internal space, numerous metal structures, and uneven pipe diameters. The auxiliary anodes in the impressed current cathodic protection system are generally selected to be light in weight, with large current output and uniform output current. Commonly used are tubular mixed metal oxide anodes (MMO) and MMO / Ti linear anodes. Due to the limited space in the water-sealed environment, in order to avoid direct contact between the auxiliary anode and the protected steel and mechanical collision between the auxiliary anode and other structures in the water-sealed environment, which may cause the metal oxide coating to fall off, a plastic protective sleeve is put on the auxiliary anode. In order not to affect the anode current output, holes of a certain size are evenly punched on the plastic protective sleeve.

[0003] However, the water environment is different from the soil environment. In the soil environment, after the auxiliary anode is buried, the distance between the auxiliary anode and the protected structure remains unchanged throughout the life cycle of the cathodic protection system. In the water environment, due to the buoyancy and water flow, the auxiliary anode is always floating, and the distance between the auxiliary anode and the protected structure is uncertain, which causes the magnitude of the protection current around the protected structure to change all the time. During the operation of the cathodic protection system, the protection potential may be too negative at the metal structure position close to the auxiliary anode, and the protection potential is less than -1200mV (relative to the copper / saturated copper sulfate reference electrode). The excessively negative protection potential may cause harmful phenomena such as cathodic stripping and hydrogen embrittlement in the protected metal structure; it may also cause insufficient protection potential (underprotection) at the metal structure position far from the auxiliary anode, and the protection potential is greater than -850mV (relative to the copper / saturated copper sulfate reference electrode), causing corrosion of the protected metal structure.

[0004] In the prior art, the auxiliary anode is not fixed in a fixed manner. The auxiliary anode is directly hoisted in the water environment with cables and ropes, or one end of the auxiliary anode is fixed with a rope and the other end is connected to the anode cable. This cannot keep the distance between the auxiliary anode and the protected structure constant as in the soil environment. Utility Model Content

[0005] The purpose of the utility model is to provide a water environment auxiliary anode fixing support to solve the technical problem that the auxiliary anode in the water cannot be fixed in the prior art, resulting in the change of the distance between the auxiliary anode and the protected metal structure. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a water environment auxiliary anode fixing support, comprising a first sleeve made of a water-resistant non-metallic material, a telescopic support rod, and a second sleeve, wherein the telescopic support rod connects the first sleeve and the second sleeve, wherein the first sleeve is used to fix the auxiliary anode, and the second sleeve can be opened and closed so as to be sleeved on the protected metal structure.

[0008] Preferably, the telescopic support rod includes a first support rod and a second support rod, the second support rod is sleeved on the outside of the first support rod, and a length adjustment structure is provided between the two, the first support rod is connected to the first sleeve, and the second support rod is connected to the second sleeve.

[0009] Preferably, the adjustment structure includes a first through hole arranged on the first support rod, a second through hole arranged on the second support rod, and a fastener passing through the first through hole and the second through hole at the same time, and at least two first through holes and / or two second through holes are arranged in the axial direction.

[0010] Preferably, the adjustment structure includes a first threaded portion provided on the first support rod, a second threaded portion is provided on the second support rod, and the first thread matches the second thread.

[0011] Preferably, the second sleeve includes a first arc segment, a second arc segment, and a connecting structure, the first arc segment is connected to the telescopic support rod, and the first arc segment and the second arc segment are connected and closed via the connecting structure.

[0012] Preferably, the connecting structure includes a first protrusion arranged on the first arc segment and a second protrusion arranged at the end of the second arc segment, a third through hole is arranged on the first protrusion, a fourth through hole is arranged on the second protrusion, and a fastening bolt is simultaneously passed through the third through hole and the fourth through hole.

[0013] Preferably, the second sleeve is configured as a sleeve clamp having an opening structure.

[0014] Preferably, the cross-sectional shape of the first sleeve matches the cross-sectional shape of the auxiliary anode to ensure that the inner circumference of the first sleeve contacts the outer circumference of the auxiliary anode;

[0015] The cross-sectional shape of the second sleeve matches the cross-sectional shape of the protected metal structure to ensure that the inner circumference of the second sleeve contacts the outer circumference of the protected metal structure.

[0016] Preferably, the first sleeve, the second sleeve and the telescopic support rod are made of polyvinyl chloride, polyethylene or random copolymer polypropylene.

[0017] Preferably, the length of the first sleeve along the axial direction is greater than or equal to the diameter of the first support rod, and the length of the second sleeve along the axial direction is greater than or equal to the diameter of the second support rod.

[0018] The technical solution provided by this application document includes the following beneficial effects:

[0019] The utility model provides a water environment auxiliary anode fixing support, which is used to fix the auxiliary anode, including a first sleeve with anti-corrosion function, a telescopic support rod, and a second sleeve. Since the fixing support is arranged in a water environment, the water environment contains corrosive substances, and in order not to affect the protection current absorption, the fixing support is made of water-resistant non-metallic material, wherein the telescopic support rod is connected between the first sleeve and the second sleeve, the first sleeve is used to be sleeved on the outside of the auxiliary anode, and the second sleeve can be opened and closed so as to be sleeved on the protected metal structure. The protected metal structure is used to provide a support point for the auxiliary anode, so that a certain distance is maintained between the protected metal structure and the auxiliary anode to fix the position of the auxiliary anode, thereby avoiding the occurrence of over-protection and under-protection in the protected metal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The figure is a schematic structural diagram showing a water environment auxiliary anode fixing support according to an exemplary embodiment.

[0022] In the figure: 1. first sleeve; 2. telescopic support rod; 21. first support rod; 22. second support rod; 23. adjustment structure; 24. first through hole; 25. second through hole; 26. fastener; 3. second sleeve; 31. first arc segment; 32. second arc segment; 33. first protrusion; 34. second protrusion; 35. fastening bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0024] This specific embodiment provides a water environment auxiliary anode fixing support, which solves the technical problem in the prior art that the auxiliary anode in the water cannot be fixed, resulting in a change in the distance between the auxiliary anode and the protected metal structure.

[0025] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to the solutions required as the utility model described in the claims.

[0026] Reference Figure 1 The utility model provides a water environment auxiliary anode fixing support, which is used to fix the auxiliary anode, including a first sleeve 1 with anti-corrosion function, a telescopic support rod 2, and a second sleeve 3. Since the fixing support is set in a water environment, the water environment contains corrosive substances, and in order not to affect the protection current absorption, the fixing support is made of water-resistant non-metallic materials. The telescopic support rod 2 is connected between the first sleeve 1 and the second sleeve 3. The first sleeve 1 is used to be sleeved on the outside of the auxiliary anode, and the second sleeve 3 can be opened and closed so as to be sleeved on the protected metal structure. The protected metal structure is used to provide a support point for the auxiliary anode, so that a certain distance is maintained between the protected metal structure and the auxiliary anode to fix the position of the auxiliary anode, thereby avoiding the occurrence of over-protection and under-protection in the protected metal structure.

[0027] The adjustable length of the telescopic support rod is within a range of 300 mm to 1000 mm, but the telescopic length of the telescopic support rod is not limited to this range and can also be other lengths that meet installation requirements.

[0028] In this embodiment, the telescopic support rod 2 includes a first support rod 21 and a second support rod 22. The second support rod 22 is sleeved on the outside of the first support rod 21, and a length adjustment structure 23 is set between the two. The first support rod 21 is connected to the first sleeve 1, and the second support rod 22 is connected to the second sleeve 3. The adjustment structure 23 adjusts the distance formed by the first support rod 21 and the second support rod 22, thereby facilitating the fixation of the auxiliary anode.

[0029] In this embodiment, the adjustment structure 23 includes a first through hole 24 arranged on the first support rod 21, a second through hole 25 arranged on the second support rod 22, and a fastener 26 that penetrates the first through hole 24 and the second through hole 25 at the same time. The first through hole 24 and / or the second through hole 25 are at least two in the axial direction. Specifically, at least two first through holes 24 can be provided, and at least two second through holes 25 can be provided, both of which are distributed in the axial direction. In this way, as long as the fastener 26 is penetrated in the first through hole 24 and the second through hole 25 at the same time, the length formed by the first support rod 21 and the second support rod 22 can be fixed. When adjustment is required, the first through hole 24 and the second through hole 25 in different positions can be selected according to actual conditions.

[0030] This embodiment provides another way, the adjustment structure 23 can also include a first threaded portion arranged on the first support rod 21, and a second threaded portion arranged on the second support rod 22. The first thread cooperates with the second thread. Through the rotation between the first support rod 21 and the second support rod 22, the first threaded portion and the second threaded portion are screwed in and out, thereby adjusting the length of the telescopic support rod 2.

[0031] In this embodiment, in order to facilitate the second sleeve 3 to be sleeved on the steel pipe, the second sleeve 3 includes a first arc segment 31, a second arc segment 32, and a connecting structure. The first arc segment 31 is connected to the telescopic support rod 2, and the first arc segment 31 and the second arc segment 32 are connected by the connecting structure to achieve closure. In this way, when installing, the second arc segment 32 is directly removed, the first arc segment 31 is installed at the edge of the steel pipe, and then the second arc segment 32 is installed, so that the first arc segment 31 and the second arc segment 32 are connected to achieve closure. However, the second sleeve not only includes two arc segments, but can also be set to three or four. Three or four arc segments can be connected in sequence to achieve closure. In this way, on-site construction is convenient, and there is no need to pre-sleeve the second sleeve on it when installing the pipeline.

[0032] In this embodiment, the connecting structure includes a first protrusion 33 arranged on the first arc segment 31 and a second protrusion 34 arranged at the end of the second arc segment 32. The first arc segment 31 and the second arc segment 32 are semicircles. A third through hole is arranged on the first arc segment and the first protrusion 33, and a fourth through hole is arranged on the second protrusion 34. The fastening bolt 35 is simultaneously passed through the third through hole and the fourth through hole. In order to install the first arc segment 31 and the second arc segment 32, a first protrusion 33 is arranged on the first arc segment 31, and a second protrusion 34 is arranged on the end face of the second arc segment 32. The fastening bolt 35 is installed on the first protrusion 33 and the second protrusion 34 to facilitate the first arc segment 31 and the second arc segment 32 to form a whole circle.

[0033] In this embodiment, the second sleeve 3 may also be provided with a sleeve clamp having an opening. When in use, the metal structure to be directly protected enters through the opening of the sleeve clamp so that the sleeve clamp is fixed on the metal structure to be protected.

[0034] In this embodiment, the cross-sectional shape of the first sleeve tube 1 matches the cross-sectional shape of the auxiliary anode to ensure that the inner circumference of the first sleeve tube 1 contacts the outer circumference of the auxiliary anode; that is, the auxiliary anode may be circular, rectangular or triangular, and in order for the first sleeve tube 1 to be able to be just sleeved on the auxiliary anode, the shape of the first sleeve tube 1 is set to be circular, rectangular or triangular, but the shape of the first sleeve tube 1 is not limited to these three shapes, and the cross-sectional shape of the first sleeve tube 1 changes with the cross-sectional shape of the auxiliary anode.

[0035] The cross-sectional shape of the second sleeve 3 matches the cross-sectional shape of the protected metal structure to ensure that the inner circumference of the second sleeve 3 contacts the outer circumference of the protected metal structure. That is, since the protected metal structure may be circular, rectangular or triangular, in order for the second sleeve 3 to be properly sleeved on the protected metal structure, the shape of the second sleeve 3 is set to be circular, rectangular or triangular, but the shape of the second sleeve 3 is not limited to these three shapes. The cross-sectional shape of the second sleeve 3 changes with the cross-sectional shape of the protected metal structure.

[0036] In this embodiment, the materials of the first sleeve 1, the second sleeve 3, and the telescopic support rod 2 are all water-resistant materials, which may be polyvinyl chloride, polyethylene, or random copolymer polypropylene, but the materials are not limited to these. Other materials that can be used for a long time in a water environment can also be used without affecting the absorption of the protection current of the protected structure.

[0037] In this embodiment, the length of the first sleeve 1 along the axial direction is greater than or equal to the height of the first support rod 21 along the axial direction of the first sleeve 1, and the length of the second sleeve 3 along the axial direction is greater than or equal to the height of the second support rod 22 along the axial direction of the second sleeve, which facilitates the connection between the first support rod 21 and the first sleeve 1, and the second support rod 22 and the second sleeve 3, while also ensuring the connection strength between the first sleeve 1 and the first support rod 21, and between the second sleeve 3 and the second support rod 22.

[0038] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

[0041] It is to be understood that the same or similar parts in the above embodiments can refer to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments. The multiple schemes provided in this application include their own basic schemes, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0042] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present application. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A water environment auxiliary anode fixing support, characterized in that: The invention comprises a first sleeve (1) made of a water-resistant non-metallic material, a telescopic support rod (2), and a second sleeve (3), wherein the telescopic support rod (2) connects the first sleeve (1) and the second sleeve (3), wherein the first sleeve (1) is used to fix an auxiliary anode, and the second sleeve (3) can be opened and closed so as to be sleeved on a metal structure to be protected.

2. The water environment auxiliary anode fixing support according to claim 1, characterized in that: The telescopic support rod (2) comprises a first support rod (21) and a second support rod (22); the second support rod (22) is sleeved on the outside of the first support rod (21), and a length adjustment structure (23) is provided between the first support rod (21) and the first support rod (21) is connected to the first sleeve (1), and the second support rod (22) is connected to the second sleeve (3).

3. The water environment auxiliary anode fixing support according to claim 2, characterized in that: The adjustment structure (23) comprises a first through hole (24) arranged on the first support rod (21), a second through hole (25) arranged on the second support rod (22), and a fastener (26) penetrating through both the first through hole (24) and the second through hole (25), wherein at least two first through holes (24) and / or two second through holes (25) are arranged in the axial direction.

4. The water environment auxiliary anode fixing support according to claim 2, characterized in that: The adjustment structure comprises a first threaded portion arranged on the first support rod (21), and a second threaded portion is arranged on the second support rod (22), and the first thread matches the second thread.

5. The water environment auxiliary anode fixing support according to claim 1, characterized in that: The second sleeve (3) comprises a first circular arc segment (31), a second circular arc segment (32) and a connecting structure; the first circular arc segment (31) is connected to the telescopic support rod (2); the first circular arc segment (31) and the second circular arc segment (32) are connected and closed via the connecting structure.

6. The water environment auxiliary anode fixing support according to claim 5, characterized in that: The connection structure comprises a first protrusion (33) arranged at both ends of the first arc segment (31), and a second protrusion (34) arranged at both ends of the second arc segment (32); a third through hole is arranged on the first protrusion (33), and a fourth through hole is arranged on the second protrusion (34); a fastening bolt (35) is simultaneously passed through the third through hole and the fourth through hole.

7. The water environment auxiliary anode fixing support according to claim 1, characterized in that: The second sleeve (3) is configured as a sleeve clamp having an opening structure.

8. The water environment auxiliary anode fixing support according to claim 1, characterized in that: The cross-sectional shape of the first sleeve (1) matches the cross-sectional shape of the auxiliary anode, so as to ensure that the inner circumference of the first sleeve (1) contacts the outer circumference of the auxiliary anode; The cross-sectional shape of the second sleeve (3) matches the cross-sectional shape of the metal structure to be protected, so as to ensure that the inner circumference of the second sleeve (3) contacts the outer circumference of the metal structure to be protected.

9. The water environment auxiliary anode fixing support according to claim 1, characterized in that: The materials of the first sleeve (1), the second sleeve (3) and the telescopic support rod (2) are polyvinyl chloride, polyethylene or random copolymer polypropylene.

10. The water environment auxiliary anode fixing support according to claim 2, characterized in that: The width of the first sleeve (1) along the axial direction is greater than or equal to the diameter of the first support rod (21), and the width of the second sleeve (3) along the axial direction is greater than or equal to the diameter of the second support rod (22).

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