Self-resistance-reducing type cathode protection auxiliary anode
By setting up a conductive torch and a phosphorus iron ring in the cathode protection auxiliary anode, the problem that traditional cathode protection auxiliary anode is difficult to reduce soil resistivity in a high resistivity soil environment is solved, and the self-resistance reduction function is realized, which simplifies installation and reduces costs.
Patent Information
- Application Number
- CN202421599653.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-08
AI Technical Summary
In urban and high resistivity soil environments, traditional cathode protection auxiliary anodes are difficult to effectively reduce soil resistivity, and the installation is complex and costly.
The self-resistance cathode is used to protect the auxiliary anode. By installing a conductive torch in the anode material cylinder and amorphous alloy coating is arranged on the outside of the conductive torch, combined with the phosphorus iron ring cast by phosphorus pig iron, the function of improving the resistivity of the soil around the anode is realized.
It realizes the rapid reduction of soil resistivity without large-scale excavation, simplifies the installation process, shortens construction time and reduces costs.
Smart Images
Figure CN222861647U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cathode protection, and in particular relates to a self-resistance reduction type cathode protection auxiliary anode. Background Art
[0002] The cathodic protection system consists of a constant potential instrument, auxiliary anodes, reference electrodes, power-on points, and connecting cables. To ensure the effectiveness of the cathodic protection system, the auxiliary anodes for cathodic protection are usually installed in a near-anode manner. There are two ways to install the auxiliary anodes: 1) The cushion layer is constructed at the same time, and the MMO belt anode, MMO wire anode, or conductive polymer wire anode is installed in the fine sand layer from bottom to top in layers; 2) First, according to the structure of the cushion layer, the cushion layer is fully filled layer by layer from bottom to top in the range, and a mesh or ring groove is opened on the filled cushion layer, and the MMO belt anode, MMO wire anode, or conductive polymer wire anode is installed in the groove, and finally the trench excavated for the buried anode is backfilled and compacted.
[0003] Conventional cathodic protection auxiliary anodes in cities and high resistivity soils usually use MMO / TI precious metal oxide anodes, titanium alloy anodes or linear anodes, which have the characteristics of large construction areas, many types of auxiliary materials, and difficulty in reducing resistance in the later system. In urban areas, mountains and small stations where large-scale excavation is not convenient, it is difficult to achieve the design effect in high resistivity soil environments. Utility Model Content
[0004] The utility model aims at the problems in the prior art and provides a self-resistance-reducing cathodic protection auxiliary anode. Through the characteristics of its own design and the setting of a conductive tube, it realizes the function of improving the soil resistivity around the anode and continuously reducing resistance. It is easy to install, does not require large-scale excavation, has a short construction time, and greatly reduces costs.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: a self-resistance reduction cathodic protection auxiliary anode, comprising: an outer shell, in which a mounting base, a gasket, a fixing ring, an anode material cylinder, a conductive cover plate, a conductive cylinder, a conductive rod and a conductive ring are arranged in sequence, and an MMO / TI precious metal oxide anode is arranged in the anode material cylinder, and the conductive rod and the conductive ring are combined to make the MMO / TI precious metal oxide anode contact with the outside to achieve cathodic protection, an amorphous alloy coating is arranged on the outside of the conductive cylinder, and the coating is used to protect the surface stability of the conductive cylinder and maintain good conductivity, and a phosphorus iron ring cast by phosphorus pig iron is arranged in the conductive cylinder.
[0006] Furthermore, the anode material cylinder is inside the conductive cylinder, and a phosphorus iron ring cast from phosphorus pig iron is arranged between the anode material cylinder and the conductive cylinder. One end of the conductive rod is connected to the MMO / TI precious metal oxide anode and the other end is connected to the conductive ring. The conductive rod material is graphite, and the conductive ring is made of precious metal oxide.
[0007] Furthermore, the shell adopts a cylindrical structure, a conductive cylinder is installed inside the shell through a mounting base, an anode material cylinder is arranged inside the conductive cylinder, a conductive cover plate is installed on the end face of the anode material cylinder, the conductive cover plate is connected to the conductive ring through a conductive rod, and the conductive ring is installed on the open end of the conductive cylinder through a thread.
[0008] Compared with the prior art, the advantages and positive effects of the utility model are:
[0009] The self-resistance-reducing cathodic protection auxiliary anode adopted by the utility model can be used in cities and in high-resistivity soil conditions. The traditional anode layout has the characteristics of large construction working area, many types of auxiliary materials, and difficulty in reducing resistance in the later system. In urban areas, mountains and small-scale stations where large-scale excavation is not convenient, it is difficult to achieve the design effect in high-resistivity soil environments. The utility model adopts a new design. Through the characteristics of its own design, the setting of a conductive tube is adopted to realize the function of improving the soil resistivity around the anode and continuously reducing resistance. It is easy to install, does not require large-scale excavation, and has a short construction time, which greatly reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0011] Figure 1 It is a structural schematic diagram of the self-resistance reduction type cathodic protection auxiliary anode of the utility model;
[0012] In the above figures, 1. outer shell; 2. mounting base; 3. gasket; 4. fixing ring; 5. anode material cylinder; 6. conductive cover plate; 7. conductive cylinder; 8. conductive rod; 9. conductive ring. DETAILED DESCRIPTION
[0013] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0014] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0015] Embodiment 1, as Figure 1 As shown, the present application provides a self-resistance reduction type cathodic protection auxiliary anode, including: a shell 1, a mounting base 2, a gasket 3, a fixing ring 4, an anode material cylinder 5, a conductive cover plate 6, a conductive cylinder 7, a conductive rod 8 and a conductive ring 9 are sequentially arranged in the shell 1, and an MMO / TI noble metal oxide anode is arranged in the anode material cylinder, and the conductive rod and the conductive ring are used to make the MMO / TI noble metal oxide anode contact with the outside to achieve cathodic protection. An amorphous alloy coating is arranged on the outside of the conductive cylinder, and the coating is used to protect the surface stability of the conductive cylinder and maintain good conductivity. A phosphorus iron ring cast by phosphorus pig iron is arranged in the conductive cylinder, and the phosphorus iron ring is used to reduce the contact resistance, thereby reducing the influence of the surrounding soil on the anode, extending the service life of the auxiliary anode, and ensuring long-term stable operation. The anode material cylinder is inside the conductive cylinder, and a phosphorus iron ring cast by phosphorus pig iron is arranged between the anode material cylinder and the conductive cylinder. One end of the conductive rod is connected to the MMO / TI noble metal oxide anode and the other end is connected to the conductive ring. The conductive rod material is graphite, and the conductive ring is made of precious metal oxide.
[0016] The shell adopts a cylindrical structure, and the shell can be made of metal or non-metal materials. The corresponding material settings can be made according to the requirements of the working area. The conductive cylinder is installed inside the shell through the mounting base, and the anode material cylinder is arranged inside the conductive cylinder. The end surface of the anode material cylinder is installed with a conductive cover plate, and the conductive cover plate is connected to the conductive ring through a conductive rod. The conductive ring is installed at the open end of the conductive cylinder through a thread. The shell can protect the internal structure stably and avoid damage to the internal structure caused by external force collision. The shell can also be transported conveniently. According to the construction requirements, the shell can also be disassembled, and the cathodic protection effect can also be performed by using the structure set inside.
[0017] The self-resistance-reducing cathodic protection auxiliary anode adopted by the utility model can be used in cities and in high-resistivity soil conditions. The traditional anode layout has the characteristics of large construction working area, many types of auxiliary materials, and difficulty in reducing resistance in the later system. In urban areas, mountains and small-scale stations where large-scale excavation is not convenient, it is difficult to achieve the design effect in high-resistivity soil environments. The utility model adopts a new design. Through the characteristics of its own design, the setting of a conductive tube is adopted to realize the function of improving the soil resistivity around the anode and continuously reducing resistance. It is easy to install, does not require large-scale excavation, and has a short construction time, which greatly reduces costs.
[0018] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A self-resistance reduction cathodic protection auxiliary anode, characterized in that: include: The shell comprises a mounting base, a gasket, a fixing ring, an anode material cylinder, a conductive cover plate, a conductive cylinder, a conductive rod and a conductive ring, wherein an MMO / TI noble metal oxide anode is arranged in the anode material cylinder, and the conductive rod and the conductive ring cooperate to make the MMO / TI noble metal oxide anode contact with the outside to realize cathodic protection, an amorphous alloy coating is arranged on the outside of the conductive cylinder, and the coating is used to protect the surface stability of the conductive cylinder and maintain good conductivity, and a phosphorus iron ring cast by phosphorus pig iron is arranged in the conductive cylinder.
2. The self-resistance reduction cathodic protection auxiliary anode according to claim 1, characterized in that: The anode material cylinder is inside the conductive cylinder, a phosphorus iron ring cast from phosphorus pig iron is arranged between the anode material cylinder and the conductive cylinder, one end of the conductive rod is connected to the MMO / TI precious metal oxide anode and the other end is connected to the conductive ring, the conductive rod material is graphite, and the conductive ring is made of precious metal oxide.
3. The self-resistance reduction cathodic protection auxiliary anode according to claim 1, characterized in that: The shell adopts a cylindrical structure, a conductive cylinder is installed inside the shell through a mounting base, an anode material cylinder is arranged inside the conductive cylinder, a conductive cover plate is installed on the end surface of the anode material cylinder, the conductive cover plate is connected to the conductive ring through a conductive rod, and the conductive ring is installed on the open end of the conductive cylinder through a thread.