Protection structure for reference electrode suitable for cathode protection

Abstract

The utility model discloses a reference electrode protection structure suitable for cathode protection, which belongs to the field of reference electrodes and comprises a reference electrode storage box. A plurality of groups of reference electrode storage racks are mounted in the reference electrode storage box; a plurality of storage tubes are arranged on each group of reference electrode storage racks at intervals; and a reference electrode is stored in the reference electrode protection structure. According to the reference electrode protection structure suitable for cathode protection disclosed by the utility model, the reference electrode is wrapped and protected by the first half shaft and the second half shaft, and the reference electrode protection structure is secondarily surrounded and protected by the storage tube; the reference electrode body can be safely protected in the reference electrode protection structure and the reference electrode storage rack, so that the stable placement of the reference electrode in use is effectively improved, the reference electrode can be effectively isolated, and meanwhile, the dual physical barriers of the reference electrode protection structure and the storage tube can provide firm structural protection.

Description

Technical Field

[0001] The utility model belongs to the field of reference electrodes, and particularly relates to a protection structure for a reference electrode suitable for cathodic protection. Background Art

[0002] A cathodic protection system is a technology to prevent metal structures (usually steel) from corrosion. It converts the protected metal structure into the cathode in an electrochemical system, thus avoiding its corrosion due to electrochemical reactions with electrolytes (such as water, soil, etc.) in the environment. This technology is widely used in metal equipment such as ocean engineering, underground pipelines, storage tanks, etc. that are long-term exposed to corrosive environments.

[0003] In a cathodic protection system, a reference electrode (also called a reference electrode) is used to measure the potential of the protected structure to ensure the corrosion control effect. The main function of this measuring electrode is to provide a stable and reproducible reference potential, enabling the cathodic protection system to monitor and adjust the current in real time to avoid structural corrosion; the saturated copper sulfate electrode is one of the most commonly used cathodic protection reference electrodes, especially suitable for soil and fresh water environments. It consists of a copper rod immersed in a saturated copper sulfate solution. Its electrode potential is very stable, about +0.316V relative to the standard hydrogen electrode (SHE).

[0004] After the reference electrode is used, it is usually placed in a reference electrode box for storage, and at the same time, the reference electrode is wrapped with a soft isolator in the box to achieve the safe placement of the reference electrode. However, in actual use, the physical protection provided by simply wrapping with a soft material is limited and cannot effectively prevent the reference electrode from being damaged by mechanical shock or external pressure. For example, during storage, the reference electrode is shaken, squeezed, impacted or dropped, and only being wrapped with a sponge cannot effectively avoid damage to the electrode structure or internal components. Such damage may lead to a decline in electrode performance or complete failure; at the same time, the active materials (such as copper, silver / silver chloride, etc.) of the reference electrode will undergo corrosion reactions when exposed for a long time, and simple protection cannot fully isolate air and moisture, which will lead to oxidation, corrosion or surface crystallization of the reference electrode material; therefore, a protection structure for a reference electrode suitable for cathodic protection is proposed to solve the above problems. Summary of the Utility Model

[0005] In view of one or more of the above defects or improvement requirements in the prior art, the utility model provides a protection structure for a reference electrode suitable for cathodic protection, which has the advantages of being able to effectively protect the reference electrode, preventing it from being damaged during use, and avoiding exposure when the reference electrode is placed.

[0006] To achieve the above object, the present utility model provides a protection structure for a reference electrode suitable for cathodic protection, including a reference electrode storage box; the reference electrode storage box has a box structure and forms a storage cavity;

[0007] A number of groups of reference electrode storage racks are installed in the reference electrode storage box; a number of storage tubes are spaced and placed on each group of reference electrode storage racks;

[0008] Each storage tube houses a set of reference electrode protection structures; a reference electrode is stored in the reference electrode protection structure;

[0009] Wherein the reference electrode protection structure includes a first half shaft and a second half shaft that are butt - joined;

[0010] Both the first half shaft and the second half shaft are in a semi - tube shape and form a storage channel therebetween;

[0011] An annular partition is also provided between the outer circumferential surfaces of the first half shaft and the second half shaft and the storage channel; a number of liquid chambers are arrayed in the annular partition.

[0012] As a further improvement of the present utility model, holes are provided at the side wall of the storage channel and are connected to the liquid chambers, and each liquid chamber is filled with an electrode protection liquid.

[0013] As a further improvement of the present utility model, threaded pipe mouths are integrally formed at both ends of the first half shaft and the second half shaft; threaded lines are provided on the outer circumferential surfaces of the threaded pipe mouths; internal thread covers are thread - connected to both ends of the first half shaft and the second half shaft; internal thread lines are provided in the internal thread covers, and the internal thread covers are thread - connected to and adapted to the threaded pipe mouths.

[0014] As a further improvement of the present utility model, a number of positioning seats and a number of positioning blocks are convexly provided on the side surface of the second half shaft.

[0015] As a further improvement of the present utility model, a number of limiting grooves and positioning grooves are provided on the side surface of the first half shaft; wherein the limiting grooves correspond to and are adapted to be fitted with the positioning blocks; the positioning grooves correspond to and are adapted to be fitted with the positioning seats.

[0016] As a further improvement of the present utility model, convex plates are convexly provided on the side surfaces of the two threaded pipe mouths located on the second half shaft, and pipe mouth grooves are recessed on the side surfaces of the two threaded pipe mouths located on the first half shaft, and the pipe mouth grooves correspond to and are adapted to be fitted with the convex plates.

[0017] Generally speaking, compared with the prior art by the above - conceived technical solution of the present utility model, the beneficial effects include:

[0018] The present invention is suitable for a reference electrode protection structure for cathodic protection. In actual use, through the mutual movement and coordination of multiple structures arranged in the reference electrode protection structure, the user can use the reference electrode protection structure and the reference electrode storage rack to effectively protect the reference electrode body. When the user places the reference electrode into the storage channel, the electrode protection liquid filled in the liquid chamber can always chemically wrap the reference electrode, thereby preventing it from oxidizing during storage. At the same time, through the wrapping protection of the reference electrode by the first and second semi-axes, combined with the secondary surrounding protection of the reference electrode protection structure by the storage tube, the reference electrode body can be safely protected in the reference electrode protection structure and the reference electrode storage rack, thereby effectively improving the stable placement of the reference electrode during use. Compared with traditional direct placement, the reference electrode protection structure of the present application can effectively isolate the reference electrode from contact with corrosive substances in the external environment, such as acidic, alkaline or salt substances, to prevent the electrode from failing due to corrosion by external chemical substances. At the same time, the dual physical barrier of the reference electrode protection structure and the storage tube can provide strong structural protection to prevent external mechanical impact, vibration or extrusion from causing damage or displacement of the electrode.

[0019] The utility model is suitable for a reference electrode protection structure for cathode protection. The reference electrode protection structure is provided with a detachable connection, so that when the separate reference electrode protection structure needs to be maintained after use, the reference electrode protection structure can be dissected as a whole, thereby facilitating the user to maintain the storage channel and liquid chamber inside it, so as to ensure effective protection of the reference electrode in subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a schematic diagram of the installation structure of the storage tube of the utility model on the reference electrode storage rack;

[0022] Figure 3 This is a schematic diagram of the disassembly and installation structure of the reference electrode protection structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of the second half shaft of the utility model;

[0024] Figure 5 This is a schematic diagram of the overall structure of the first half shaft of the utility model.

[0025] In all the drawings, the same reference numerals denote the same technical features, specifically: 1. Reference electrode storage box; 2. Reference electrode storage rack; 21. Storage tube; 3. Reference electrode protection structure; 31. First half shaft; 32. Second half shaft; 33. Storage channel; 34. Annular partition; 35. Liquid chamber; 36. Positioning block; 37. Positioning seat; 38. Threaded pipe orifice; 39. Convex plate; 310. Internal thread cover; 311. Positioning groove; 312. Limiting groove; 313. Pipe orifice groove. Detailed implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment

[0028] As Figures 1-5 shown, a protection structure for a reference electrode suitable for cathodic protection includes a reference electrode storage box 1; the reference electrode storage box 1 has a box body structure and forms a storage cavity;

[0029] A number of groups of reference electrode storage racks 2 are installed in the reference electrode storage box 1; a number of storage tubes 21 are spaced and placed on each group of reference electrode storage racks 2;

[0030] Each storage tube 21 contains a group of reference electrode protection structures 3; a reference electrode is stored in the reference electrode protection structure 3;

[0031] Among them, the reference electrode protection structure 3 includes a first half shaft 31 and a second half shaft 32 that are butt-joined;

[0032] Both the first half shaft 31 and the second half shaft 32 are in a semi-tubular shape and a storage channel 33 is formed between them;

[0033] An annular partition 34 is also provided between the outer circumferential surfaces of the first half shaft 31 and the second half shaft 32 and the storage channel 33; a number of liquid chambers 35 are arrayed in the annular partition 34.

[0034] In this embodiment, in actual use, through the mutual movement and coordination of multiple structures arranged in the reference electrode protection structure 3, the user can use the reference electrode protection structure 3 and the reference electrode storage rack 2 to achieve effective protection of the reference electrode body; compared with the traditional direct placement, the reference electrode protection structure 3 of the present application can effectively isolate the reference electrode from corrosive substances in the external environment such as acidic, alkaline or salt substances, and prevent the electrode from failing due to corrosion by external chemical substances. At the same time, the double physical barrier of the reference electrode protection structure 3 and the storage tube 21 can provide strong structural protection to prevent external mechanical shock, vibration or extrusion from causing damage or displacement of the electrode.

[0035] Furthermore, the reference electrode protection structure 3 is provided with a detachable connection, so that when the separate reference electrode protection structure 3 needs to be maintained after use, the reference electrode protection structure 3 can be dissected as a whole, thereby facilitating the user to maintain the internal storage channel 33 and liquid chamber 35, so as to ensure effective protection of the reference electrode in subsequent use.

[0036] It is further explained that in the cathodic protection system, the reference electrode is an important element for monitoring the potential of the protected structure. The reference electrode is protected by the protection structure of the present application, thereby effectively isolating the external corrosive medium, such as chloride ions or other corrosive substances in seawater, reducing the risk of corrosion of the reference electrode, thereby extending its service life; at the same time, the contamination of the electrode surface by external impurities or chemical substances will affect the detection accuracy of the electrode. By setting a protective liquid to surround the reference electrode, pollutants can be prevented from entering the electrode surface, ensuring the long-term stability of the electrode.

[0037] Specifically, refer to Figures 4-5 The side wall of the preservation channel 33 is provided with holes which are connected to the liquid chamber 35 , and each liquid chamber 35 is filled with electrode protection liquid.

[0038] In this embodiment, after the user places the reference electrode into the storage channel 33, the electrode protection liquid filled in the liquid chamber 35 can always chemically wrap the reference electrode, thereby preventing it from being oxidized during storage; at the same time, the reference electrode is wrapped and protected by the first semi-axis 31 and the second semi-axis 32, and the storage tube 21 provides secondary surrounding protection to the reference electrode protection structure 3, so that the reference electrode body can be safely protected in the reference electrode protection structure 3 and the reference electrode storage rack 2, thereby effectively improving the stable placement of the reference electrode during use.

[0039] Further, it should be noted that in actual use, the liquid chamber 35 formed by setting a number of annular partitions 34 can be filled with the electrode protective liquid in actual use, so as to realize the wrapping protection of the reference electrode. Considering the problem of loss and consumption of the electrode protective liquid, through the design of a number of liquid chambers 35, the electrode protective liquid will not directly contact the electrode at one time, so that the electrode protective liquid can be consumed layer by layer, and the consumption rate of each layer of protective liquid is relatively low, so that the protection effect of the reference electrode lasts longer, thus prolonging the overall life of the electrode; and the structure of multiple liquid chambers 35 arranged at intervals provides a stronger physical barrier, which can disperse the external mechanical impact force and reduce the damage caused by uneven stress on the reference electrode. Especially in a relatively harsh environment such as a high-vibration or high-pressure environment, the reference electrode is more stable.

[0040] Specifically, referring to Figures 3-5 , threaded pipe mouths 38 are integrally formed at both ends of the first half shaft 31 and the second half shaft 32, and thread lines are provided on the outer circumferential surface of the threaded pipe mouths 38; internal thread covers 310 are threadedly connected to both ends of the first half shaft 31 and the second half shaft 32; internal thread lines are provided inside the internal thread covers 310, and the internal thread covers 310 are threadedly connected to and adapted to the threaded pipe mouths 38.

[0041] In this embodiment, when the user needs to protect the reference electrode, the user first unscrews the internal thread cover 310. At this time, the storage channel 33 between the first half shaft 31 and the second half shaft 32 will be exposed. The user places the reference electrode to be stored into the storage channel 33, and then screws the internal thread cover 310 tightly onto the threaded pipe mouth 38 again; at this time, the storage channel 33 will be in a closed state, so as to always wrap the reference electrode.

[0042] Further, the user can also wind structures such as raw tape at the connection between the threaded pipe mouth 38 and the internal thread cover 310 to further improve the sealing connection between the two.

[0043] Specifically, referring to Figures 4-5 , a number of positioning seats 37 and a number of positioning blocks 36 are convexly provided on the side surface of the second half shaft 32; a number of limiting grooves 312 and positioning grooves 311 are provided on the side surface of the first half shaft 31; among them, the limiting grooves 312 and the positioning blocks 36 correspond to and are adapted to be fitted; the positioning grooves 311 and the positioning seats 37 correspond to and are adapted to be fitted.

[0044] In this embodiment, during actual use, the first half shaft 31 and the second half shaft 32 are arranged in a spliced connection. When the user needs to disassemble the first half shaft 31 and the second half shaft 32, first unscrew the internal thread cover 310. At this time, the set limiting groove 312 will disengage from the limit of the positioning block 36, and the set positioning groove 311 will disengage from the limit of the positioning seat 37, so that the first half shaft 31 and the second half shaft 32 can be separated;

[0045] Similarly, when the user needs to splice the first half shaft 31 and the second half shaft 32, by aligning the limiting groove 312 with the positioning block 36 and aligning the positioning groove 311 with the positioning seat 37, the first half shaft 31 and the second half shaft 32 can be docked at this time, and thus fit tightly together, so that the storage channel 33 is in contact and forms a complete cylindrical cavity, and the reference electrode is surrounded and protected.

[0046] Specifically, referring to Figures 4-5 , on the two threaded pipe orifices 38 located on the second half shaft 32, convex plates 39 are convexly provided on the side, and on the two threaded pipe orifices 38 located on the first half shaft 31, pipe orifice grooves 313 are recessed and opened on the side. The pipe orifice grooves 313 and the convex plates 39 correspond to each other and are fitted and engaged.

[0047] In this embodiment, the docking and splicing between the convex plate 39 and the internal thread cover 310 can further improve the connection stability between the second half shaft 32 and the first half shaft 31, so as to ensure that there is no rotation phenomenon between the first half shaft 31 and the second half shaft 32, and thus ensure the stable protection of the reference electrode.

[0048] The protection structure for the reference electrode used in cathodic protection of the present utility model:

[0049] When the user needs to protect the reference electrode, first open the reference electrode storage box 1. At this time, the reference electrode storage rack 2 arranged in the reference electrode storage box 1 is exposed. Subsequently, the user unscrews the internal thread covers 310 on a number of reference electrode protection structures 3 in sequence. At this time, the storage channel 33 between the first half shaft 31 and the second half shaft 32 will be in an exposed state. The user places the reference electrode to be stored into the storage channel 33, and then screws the internal thread cover 310 tightly on the threaded pipe orifice 38 again; at this time, the electrode protection liquid filled in the liquid chamber 35 can always wrap the reference electrode, so as to prevent it from being oxidized during storage; at the same time, through the wrapping and protection of the reference electrode by the first half shaft 31 and the second half shaft 32, and the secondary surrounding protection of the reference electrode protection structure 3 by the storage tube 21, the reference electrode body can be safely protected in the reference electrode protection structure 3 and the reference electrode storage rack 2, so as to effectively improve the stable placement of the reference electrode during use.

[0050] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection structure for a reference electrode applicable to cathodic protection, characterized in that ； Comprising a reference electrode storage box (1); the reference electrode storage box (1) has a box structure and forms a storage cavity; A number of groups of reference electrode storage racks (2) are installed in the reference electrode storage box (1); a number of storage tubes (21) are spaced and placed on each group of reference electrode storage racks (2); Each of the storage tubes (21) houses a group of reference electrode protection structures (3); a reference electrode is stored in the reference electrode protection structure (3); Wherein the reference electrode protection structure (3) includes a first half shaft (31) and a second half shaft (32) that are butt-jointed and spliced; Both the first half shaft (31) and the second half shaft (32) are in a semi-tubular shape and a storage channel (33) is formed therebetween; An annular partition (34) is also provided between the outer circumferential surfaces of the first half shaft (31) and the second half shaft (32) and the storage channel (33); a number of liquid chambers (35) are arrayed in the annular partition (34).

2. The protection structure for the reference electrode applicable to cathodic protection according to claim 1, characterized in that, Holes are provided at the side wall of the storage channel (33) and are communicated with the liquid chambers (35), and each of the liquid chambers (35) is filled with an electrode protection liquid.

3. The protection structure for a reference electrode applicable to cathodic protection according to claim 1, characterized in that, Threaded nozzles (38) are integrally formed at both ends of the first half shaft (31) and the second half shaft (32), and thread lines are provided on the outer circumferential surface of the threaded nozzles (38); internal thread caps (310) are threadedly connected to both ends of the first half shaft (31) and the second half shaft (32); internal thread lines are provided in the internal thread caps (310), and the internal thread caps (310) are threadedly connected to and adapted to the threaded nozzles (38).

4. The protection structure for a reference electrode applicable to cathodic protection according to claim 1, characterized in that, A number of positioning seats (37) and a number of positioning blocks (36) are protruded from the side surface of the second half shaft (32).

5. The protection structure for a reference electrode applicable to cathodic protection according to claim 1, characterized in that, A number of limiting grooves (312) and positioning grooves (311) are provided on the side surface of the first half shaft (31); wherein the limiting grooves (312) and the positioning blocks (36) correspond to and are adapted to be fitted together; the positioning grooves (311) and the positioning seats (37) correspond to and are adapted to be fitted together.

6. The protection structure for a reference electrode applicable to cathodic protection according to claim 1, characterized in that, Convex plates (39) are protruded from the side surfaces of the two threaded nozzles (38) located on the second half shaft (32), and nozzle grooves (313) are recessed on the side surfaces of the two threaded nozzles (38) located on the first half shaft (31), and the nozzle grooves (313) and the convex plates (39) correspond to and are adapted to be fitted together.

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