Maintenance equipment for sacrificial anode

Abstract

The utility model discloses maintenance equipment for a sacrificial anode, and belongs to the technical field of steel bar repair and protection. The maintenance equipment for the sacrificial anode comprises a connection unit, a maintenance unit and a control unit, the connection unit is provided with a connection channel, and the connection channel is used for being communicated with a maintenance channel of the sacrificial anode; the new gel injection unit is communicated with the connecting channel of the connecting unit and is used for injecting new maintenance gel into the sacrificial anode; and the waste gel extraction unit is communicated with the connecting channel of the connecting unit and is used for extracting the waste gel in the sacrificial anode. By adopting the maintenance equipment disclosed by the utility model, the protection gel in the maintainable embedded sacrificial anode can be conveniently replaced in time, so that the requirements of sacrificial metal on working environments such as long-term working humidity, pH value, ion distribution and the like are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar repair and protection, and more specifically relates to a maintenance device for a maintainable buried sacrificial anode for concrete steel bar corrosion protection. Background Art

[0002] In the field of reinforced concrete construction, steel corrosion is considered to be the primary cause affecting the durability of concrete structures and one of the main diseases of concrete engineering durability. Therefore, preventing steel corrosion is particularly important for improving the durability of concrete.

[0003] The concrete steel bar sacrificial anode method is to connect a metal or alloy with a potential more negative than that of the steel bar in the concrete to the protected steel bar, and rely on the current generated by the continuous corrosion and dissolution of the metal with a relatively negative potential to protect the steel bar in the concrete. The traditional concrete embedded discrete sacrificial anode protection shell usually uses ordinary mortar or porous mortar with a strength lower than that of solid concrete, and it is completely enclosed in the concrete during construction and pouring. Although this method can ensure that the sacrificial anode is not damaged during construction, it cannot guarantee the long-term pH, humidity and other working environment requirements of the sacrificial metal.

[0004] Based on the above problems, the applicant has developed a maintainable buried sacrificial anode, the structure of which is as follows: Figure 1 As shown, the sacrificial anode includes a sacrificial metal 4 and a protective shell 1. The protective shell 1 is wrapped around the outside of the sacrificial metal 4. The outside of the protective shell 1 is a sealed structure, and the inside of the protective shell 1 is a porous interconnected structure. The inside of the protective shell 1 is connected to the outside of the concrete through a maintenance channel 2, so that the maintenance gel can be transported to the inside of the protective shell 1 through the maintenance channel 2, and the maintenance gel is stored through the porous interconnected structure inside the protective shell 1, and the long-term pH, humidity and other working environment requirements of the sacrificial metal are guaranteed.

[0005] Therefore, it is of great significance to research and develop a maintenance device for the above-mentioned maintainable buried sacrificial anode, which can replace the protective gel inside the protective shell in time. Utility Model Content

[0006] The utility model aims to provide a sacrificial anode maintenance device, so as to facilitate timely replacement of the protective gel inside the above-mentioned maintainable buried sacrificial anode to meet the requirements of the sacrificial metal for the long-term working humidity, pH and ion distribution and other working environment.

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model provides a sacrificial anode maintenance device, comprising:

[0009] A connecting unit, wherein the connecting unit is provided with a connecting channel, wherein the connecting channel is used to communicate with a maintenance channel of the sacrificial anode;

[0010] A new gel injection unit, connected to the connection channel of the connection unit, for injecting new maintenance gel into the sacrificial anode; and

[0011] The waste gel extraction unit is connected to the connection channel of the connection unit and is used for extracting the waste gel in the sacrificial anode.

[0012] Furthermore, the connection unit includes a vacuum connection ring, the outer ring of which is a vacuum suction cup area, the inner hole of which constitutes a connection channel, and the aperture size of the connection channel matches the aperture size of the maintenance channel.

[0013] Furthermore, the connection unit also includes a connection base, and the vacuum connection ring is installed on the connection base.

[0014] Furthermore, the vacuum connection ring, the new gel injection unit and the waste gel extraction unit are all connected to the air pressure regulating unit.

[0015] Furthermore, the air pressure regulating unit comprises a vacuum pump, which is respectively connected to the vacuum connecting ring, the new gel injection unit and the waste gel extraction unit through pipelines.

[0016] Furthermore, the new gel injection unit includes a new gel storage tank, which is connected to the connecting channel through a gel injection pipe, and an automatic air valve and a pressure sensor are installed on the gel injection pipe.

[0017] Furthermore, the waste gel extraction unit comprises a waste gel storage tank, which is connected to the connecting channel via a gel extraction pipe, and an automatic air valve and a pressure sensor are installed on the gel extraction pipe.

[0018] Furthermore, it also includes an intelligent control unit, which is controllably connected to the vacuum pump and the pressure sensor.

[0019] In summary, the technical solution provided by the utility model can achieve the following beneficial effects compared with the prior art:

[0020] (1) The utility model provides a maintenance device for a sacrificial anode, which is connected to a maintenance channel of the sacrificial anode via a connecting unit. Then, a new gel injection unit can be used to inject new maintenance gel into the sacrificial anode as needed, and a waste gel extraction unit can be used to extract the failed waste gel in the sacrificial anode, thereby facilitating the maintenance of the sacrificial anode, ensuring the environment required for its normal operation, and increasing its service life.

[0021] (2) The connection unit of the utility model includes a vacuum connection ring, the outer ring of which is a vacuum suction cup area, and the inner hole of which constitutes a connection channel. The arrangement of the vacuum suction cup area facilitates the connection of the device with the maintenance channel of the sacrificial anode, and the operation is relatively simple and the disassembly is convenient.

[0022] (3) The vacuum connection ring, new gel injection unit and waste gel extraction unit of the utility model are all connected to the air pressure regulating unit, through which the pressure of the vacuum connection ring, the new gel injection unit and the waste gel extraction unit can be adjusted, thereby realizing the connection control between the vacuum connection ring and the maintenance channel and ensuring the firmness of the connection; at the same time, by adjusting and controlling the pressure difference between the new gel injection unit and the waste gel extraction unit and the sacrificial anode maintenance pipeline, the injection of new gel and the extraction of waste gel can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional schematic diagram of a maintainable buried sacrificial anode according to an embodiment of the utility model;

[0024] Figure 2 It is a schematic structural diagram of the sacrificial anode maintenance equipment according to an embodiment of the utility model.

[0025] Explanation of numbers: 1. Protective shell; 2. Maintenance channel; 3. Connection contact angle; 4. Sacrificial anode; 5. New gel tank; 6. Connection base; 7. Vacuum connection ring; 701, connection channel; 8. Waste gel tank; 9. Air pressure regulating unit; 10. Intelligent control unit. DETAILED DESCRIPTION

[0026] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the drawings and embodiments.

[0027] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0028] like Figure 1The structure diagram of the maintainable buried sacrificial anode is shown, which includes a sacrificial metal 4 and a protective shell 1 wrapped around the outside of the sacrificial metal 4. The outside of the protective shell 1 is a sealed structure, and the inside is a porous interconnected structure. The maintenance gel can be stored through the porous interconnected structure to maintain the environment required for the sacrificial metal to work, which is conducive to extending its service life. Furthermore, the outside of the protective shell 1 is provided with a maintenance channel 2, which is used to connect the inside of the protective shell 1 and the outside of the concrete, so that new maintenance gel can be transported to the inside of the protective shell 1 through the maintenance channel 2.

[0029] It should be noted that the above-mentioned protective shell 1 can be formed by layered casting of mortar, with the inner layer forming an interconnected porous structure and the outer layer forming a closed structure. Specifically, different casting mold designs can be used to achieve the structural casting requirements of the inner and outer layers; it can also be made of porous ceramics or natural zeolites through sintering, and other molding technologies and materials can also be used, as long as the material can meet the sacrificial metal protection effect (strength not less than 10 MPa) and the structure conforms to the above-mentioned structural design.

[0030] In addition, the shape of the protective shell 1 itself is not affected by Figure 1 In the example, the front and back surfaces are preferably designed as arc-shaped structures, wherein the maintenance channel 2 is located on the side of the protective shell 1 facing the back steel bars, and the internal arc-shaped design increases the relative area between the sacrificial anode and the steel bars, thereby improving the protective effect on the steel bars; the arc-shaped structure on the back side increases the contact area between the sacrificial anode and the concrete, thereby being able to more effectively protect the migration of ions in the concrete.

[0031] Furthermore, the sacrificial metal 4 is connected with a connection contact angle 3, and the connection contact angle 3 protrudes from the inner side of the protective shell 1 close to the steel bar, which is used to electrically connect the sacrificial metal 4 to the steel bar. By directly forming a connection contact angle on the sacrificial metal to realize electrical connection with the steel bar, it can prevent the problem of loose connection points caused by welding or other connection methods due to different materials used, effectively improve the service life of the sacrificial anode, and help ensure the normal operation and work safety of the sacrificial anode. At the same time, the electrical connection between the sacrificial metal 4 and the steel bar can also be achieved by other methods, such as traditional wire connection.

[0032] In order to facilitate the maintenance of the sacrificial anode to ensure its normal operation and increase its service life, the embodiment of the utility model provides a sacrificial anode maintenance device, such as Figure 2 As shown, it includes:

[0033] A connection unit, the connection unit is provided with a connection channel 701, and the connection channel 701 is used to communicate with the maintenance channel 2 of the sacrificial anode;

[0034] A new gel injection unit, connected to the connection channel 701 of the connection unit, for injecting new maintenance gel into the sacrificial anode; and

[0035] The waste gel extraction unit is connected to the connection channel of the connection unit and is used for extracting the waste gel in the sacrificial anode.

[0036] When in use, the maintenance device is connected to the sacrificial anode through the connection unit, that is, the connection channel 701 is connected to the maintenance channel 2 of the sacrificial anode, and then the new gel injection unit can be used to inject new maintenance gel into the sacrificial anode. The waste gel extraction unit can be used to extract the waste gel in the sacrificial anode, thereby realizing the replacement of the maintenance gel inside the sacrificial anode, which is conducive to ensuring its normal operation.

[0037] As one of the implementation methods of the utility model, the connection unit includes a vacuum connection ring 7, the outer ring of the vacuum connection ring 7 is a vacuum suction cup area, and its inner hole constitutes a connection channel, and the aperture size of the connection channel 701 matches the aperture of the maintenance channel 2. Through the setting of the vacuum suction cup area, vacuum can be adsorbed on the surface of the concrete component to achieve the connection between the connection channel 701 and the maintenance channel 2. The operation is relatively simple and the firmness of the connection can be guaranteed. When connecting, the sealing of the connection channel 701 and the maintenance channel 2 can also be further guaranteed by setting a sealing ring and other measures.

[0038] It should be noted that, in addition to the above-mentioned vacuum adsorption connection method, other existing connection methods may also be used between the connection unit and the maintenance channel.

[0039] Furthermore, in some embodiments, the connecting unit also includes a connecting base 6, and the vacuum connecting ring 7, the new gel injection unit and the waste gel extraction unit can all be installed on the connecting base 6, and their connecting pipes can be installed inside the connecting base 6 to protect the pipes.

[0040] As a further improvement of the embodiment of the utility model, the vacuum connection ring 7, the new gel injection unit and the waste gel extraction unit are all connected to the air pressure regulating unit 9. The air pressure regulating unit 9 can be provided to adjust the pressure of the vacuum adsorption area in the vacuum connection ring 7 on the one hand to ensure the connection and disassembly control between the new gel injection unit and the waste gel extraction unit and the maintenance channel on the other hand to facilitate the extraction of the failed maintenance gel and the injection of the maintenance gel by using the air pressure difference.

[0041] Specifically, in the embodiment of the utility model, the air pressure regulating unit 9 includes a vacuum pump, which is respectively connected to the vacuum connecting ring 7, the new gel injection unit and the waste gel extraction unit through pipelines. The vacuum pipelines of the vacuum connecting ring 7, the new gel injection unit and the waste gel extraction unit are evacuated by the vacuum pump, thereby realizing pressure regulation and control.

[0042] In some embodiments, the new gel injection unit includes a new gel storage tank 5, which is connected to the connecting channel 701 through a gel injection tube, and the waste gel extraction unit includes a waste gel storage tank 8, which is connected to the connecting channel 701 through a gel extraction tube, and the above-mentioned gel injection tube and gel extraction tube are both installed with automatic air valves and pressure sensors, and the vacuum pump and pressure sensor are both controlled and connected to the intelligent control unit 10. The pressure sensor can be used to monitor the air pressure of the new gel injection unit and the waste gel extraction unit, and feedback is given to the host computer of the intelligent control unit 10. The host computer calculates and automatically collects the air pressure difference required for vacuum extraction of gel and injection of gel, and gives instructions to control the air pressure regulating unit 9 to work, thereby extracting the failed maintenance gel and injecting new gel. After the maintenance gel replacement is completed and the maintenance equipment is removed, the connection channel port of the sacrificial anode is sealed with cement mortar to prevent gel leakage.

[0043] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A sacrificial anode maintenance device, characterized in that: include: A connection unit, the connection unit is provided with a connection channel (701), the connection channel (701) is used to communicate with the maintenance channel (2) of the sacrificial anode; the connection unit comprises a vacuum connection ring (7), the outer ring of the vacuum connection ring (7) is a vacuum suction cup area, the inner hole of the vacuum connection ring (7) constitutes the connection channel, and the aperture size of the connection channel (701) matches the aperture of the maintenance channel (2); the connection unit also comprises a connection base (6), the vacuum connection ring (7) is installed on the connection base (6); A new gel injection unit, connected to the connection channel (701) of the connection unit, for injecting new maintenance gel into the sacrificial anode; as well as The waste gel extraction unit is connected to the connection channel of the connection unit and is used for extracting the waste gel in the sacrificial anode.

2. The sacrificial anode maintenance equipment according to claim 1, characterized in that: The vacuum connection ring (7), the new gel injection unit and the waste gel extraction unit are all connected to the air pressure regulating unit (9).

3. The sacrificial anode maintenance device according to claim 2, characterized in that: The air pressure regulating unit (9) comprises a vacuum pump, which is respectively connected to the vacuum connecting ring (7), the new gel injection unit and the waste gel extraction unit through pipelines.

4. The sacrificial anode maintenance equipment according to claim 3, characterized in that: The new gel injection unit comprises a new gel storage tank (5), which is connected to the connecting channel (701) via a gel injection pipe, and an automatic air valve and a pressure sensor are installed on the gel injection pipe.

5. The sacrificial anode maintenance device according to claim 4, characterized in that: The waste gel extraction unit comprises a waste gel storage tank (8), which is connected to a connecting channel (701) via a gel extraction pipe, and an automatic air valve and a pressure sensor are installed on the gel extraction pipe.

6. The sacrificial anode maintenance device according to claim 4 or 5, characterized in that: It also comprises an intelligent control unit (10), which is controllably connected to the vacuum pump and the pressure sensor.

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