Device for protecting grounding electrode

Abstract

The invention relates to the technical field of grounding protection, in particular to a device for protecting a grounding electrode so as to solve the problems that an existing wiring terminal and a busbar are prone to corrosion and poor in contact. The device comprises a grounding body, a sacrificial anode and a protective shell, the sacrificial anode is arranged on the side wall of the grounding body and buried underground along with the grounding body; and the protective shell sleeves the upper part of the grounding body. According to the scheme, the sacrificial anodes are arranged on the side wall of the grounding body and buried underground along with the grounding body, weak negative potential can be provided, and the influence of corrosion on the grounding body is reduced. And the protective shell covers the upper part of the grounding body, so that direct contact between the grounding body and the wiring terminal by corrosive gas in rainwater, snow water and air is effectively reduced, the corrosion period is prolonged, and the reliability and the safety of the grounding system are improved.

Description

Technical Field

[0001] This invention relates to the field of grounding protection technology, and in particular to a device for protecting grounding electrodes. Background Technology

[0002] Currently, most grounding busbars in power systems are constructed by welding galvanized flat steel to the grounding grid and burying it underground. The galvanized flat steel then leads to the surface. However, the underground portion suffers from severe electrochemical corrosion due to the high salinity and alkalinity in coastal areas, leading to increased grounding resistance and grounding protection failure. On the surface, rainwater, snowmelt, and corrosive gases in the air cause long-term electrochemical corrosion of the terminals and grounding flat steel, easily resulting in grounding failure and poor contact at the connection points between the terminals and the busbar. Severe corrosion can even cause terminals to break off, posing a threat to the safe operation of the power system and personal safety. Summary of the Invention

[0003] This invention provides a device for protecting the grounding electrode to alleviate the problems of easy corrosion and poor contact of existing terminals and busbars.

[0004] To alleviate the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0005] The present invention provides a device for protecting a grounding electrode, comprising a grounding body, a sacrificial anode, and a protective shell;

[0006] The sacrificial anode is installed on the side wall of the grounding electrode and buried underground along with the grounding electrode;

[0007] The protective shell is fitted onto the upper part of the grounding electrode.

[0008] Going further

[0009] The upper part of the grounding electrode has multiple wiring holes arranged from top to bottom.

[0010] Going further

[0011] The protective casing extends from the top of the grounding electrode to the bottom of the wiring hole.

[0012] Going further

[0013] The protective casing includes a protective cover and a mounting shell;

[0014] The protective cover has an opening on one side, and an opening is provided on the side connected to the opening;

[0015] The four corners of the opening side are provided with the first mounting hole;

[0016] The mounting housing is provided with a second mounting hole that mates with the first mounting hole;

[0017] The opening is connected to the grounding electrode.

[0018] Going further

[0019] There is a gap at the connection between the opening and the grounding electrode.

[0020] Going further

[0021] The bottom of the grounding electrode has a pointed tip.

[0022] The beneficial effects of the device for protecting the grounding electrode in this invention are analyzed as follows:

[0023] In this design, the sacrificial anode is placed on the side wall of the grounding electrode and buried underground with it. It provides a weak negative potential, reducing the impact of corrosion on the grounding electrode. The protective shell covers the upper part of the grounding electrode, effectively reducing the direct contact between rainwater, snowmelt, and corrosive gases in the air and the grounding electrode and terminals, thereby extending the corrosion cycle and improving the reliability and safety of the grounding system. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of the protective grounding electrode device provided for an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the protective shell.

[0027] icon:

[0028] 100 - Grounding electrode; 110 - Wiring hole; 120 - Tip;

[0029] 200-Sacrificial Anode;

[0030] 300 - Protective shell; 310 - Protective cover; 311 - Opening; 312 - First mounting hole; 320 - Fixed shell; 321 - Second mounting hole. Detailed Implementation

[0031] Grounding busbars are typically constructed by welding galvanized flat steel to the grounding grid and burying it underground. The galvanized flat steel then leads to the surface. However, the underground portion suffers from severe electrochemical corrosion due to the high salinity and alkalinity in coastal areas, leading to increased grounding resistance and grounding protection failure. On the surface, rainwater, snowmelt, and corrosive gases in the air cause long-term electrochemical corrosion of the terminals and grounding flat steel, easily resulting in grounding failure and poor contact at the connection points between the terminals and the busbar. Severe corrosion can even cause terminals to break off.

[0032] In view of this, this solution provides a device for protecting the grounding electrode to alleviate the above problems. The device includes a grounding electrode 100, a sacrificial anode 200, and a protective shell 300.

[0033] The sacrificial anode 200 is installed on the side wall of the grounding electrode 100 and buried underground along with the grounding electrode 100;

[0034] The protective shell 300 is fitted onto the upper part of the grounding electrode 100.

[0035] After the grounding electrode 100 is connected to the ground wire, the protective shell 300 is fitted onto the upper part of the grounding electrode 100, completely enclosing the grounding electrode 100 and the ground wire. Then, the grounding electrode 100 and the sacrificial anode 200 are buried together in the ground. The protective shell 300 reduces the contact between rainwater and the grounding electrode 100 and the ground wire, extending the corrosion cycle. By setting the sacrificial anode 200, the grounding electrode 100 is kept at a weak negative potential, improving the overall corrosion resistance of the grounding electrode 100. The sacrificial anode 200 can be fixed to the side wall of the grounding electrode 100 by means of easy detachable installation such as threaded connection or snap-fit, so as to facilitate periodic replacement.

[0036] In this scheme, the upper part of the grounding body 100 is provided with multiple wiring holes 110 from top to bottom; after the insulation layer of the ground wire is peeled off, it passes through each wiring hole 110 from bottom to top, and then is fixed and wrapped with insulating tape; by connecting multiple points of the ground wire to the wiring holes 110, the contact area can be increased, the conductivity can be improved, a certain corrosion tolerance can be given, and poor grounding can be avoided.

[0037] In this design, the protective housing 300 extends from the top of the grounding electrode 100 to the bottom of the wiring hole 110;

[0038] The protective housing 300 includes a protective cover 310 and a fixed housing 320;

[0039] The protective cover 310 has an opening 311 on one side, and an opening is provided on the side connected to the opening 311;

[0040] The four corners of one side of the opening 311 are provided with first mounting holes 312;

[0041] The fixed housing 320 is provided with a second mounting hole 321 that mates with the first mounting hole 312;

[0042] Opening 311 is connected to grounding electrode 100;

[0043] There is a gap at the connection between the opening 311 and the grounding body 100.

[0044] Specifically, after the ground wire and grounding body 100 are installed, the ground wire extends downward from the top of the grounding body 100, and the protective shell 300 is directly covered on the top of the grounding body 100. With the cooperation of the protective cover 310 and the fixed shell 320, the part where the ground wire and grounding body 100 are connected can be completely wrapped. The ground wire extends outward after passing through the gap between the opening 311 and the grounding body.

[0045] Preferably, the grounding electrode 100 has a pointed tip 120 at its bottom to facilitate the operator in burying the device underground.

[0046] This solution has at least the following beneficial effects:

[0047] This solution provides a grounding protection device designed to alleviate electrochemical corrosion caused by high salinity in coastal areas. The device comprises a grounding electrode, a sacrificial anode, and a protective shell, significantly improving the corrosion resistance and service life of the grounding system through comprehensive measures. The grounding electrode is typically buried underground after being welded to the grounding grid using galvanized flat steel. However, due to the corrosive environment of coastal areas, traditional methods easily lead to increased grounding resistance and protection failure. In this solution, the sacrificial anode 200 is positioned on the side wall of the grounding electrode 100 and buried underground with it, providing a weak negative potential and reducing the impact of corrosion on the grounding electrode. The protective shell 300 covers the upper part of the grounding electrode, effectively reducing direct contact between rainwater, snowmelt, and corrosive gases in the air and the grounding electrode 100 and the terminals, thereby extending the corrosion cycle. The protective shell 300 consists of a protective cover 310 and a fixed shell 320. A gap is designed between the opening of the protective cover 310 and the connection point with the grounding electrode 100, facilitating the passage and further extension of the ground wire. This design increases the contact area between the grounding electrode 100 and the ground wire, improving conductivity and reducing the risk of poor contact. The pointed design at the bottom of the grounding electrode 100 facilitates the installation of the device underground, ensuring ease and stability. Overall, this solution, through the combination of the sacrificial anode 200 and the protective shell 300, provides effective corrosion protection, enhancing the reliability and safety of the grounding system.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for protecting a grounding electrode, characterized in that: It includes a grounding electrode (100), a sacrificial anode (200), and a protective shell (300); The sacrificial anode (200) is disposed on the side wall of the grounding electrode (100) and buried underground along with the grounding electrode (100); The protective shell (300) is fitted onto the upper part of the grounding body (100).

2. The device for protecting the grounding electrode according to claim 1, characterized in that: The upper part of the grounding electrode (100) is provided with a plurality of wiring holes (110) from top to bottom.

3. The device for protecting the grounding electrode according to claim 2, characterized in that: The protective shell (300) extends from the top of the grounding body (100) to the bottom of the wiring hole (110).

4. The device for protecting the grounding electrode according to claim 3, characterized in that: The protective shell (300) includes a protective cover (310) and a fixed shell (320); The protective cover (310) has an opening (311) on one side, and an opening is provided on the side connected to the opening (311); The four corners of one side of the opening (311) are provided with first mounting holes (312); The fixed shell (320) is provided with a second mounting hole (321) that mates with the first mounting hole (312); The opening (311) is connected to the grounding body (100).

5. The device for protecting the grounding electrode according to claim 4, characterized in that: There is a gap at the connection between the opening (311) and the grounding body (100).

6. The device for protecting the grounding electrode according to claim 5, characterized in that: The grounding electrode (100) has a pointed tip (120) at its bottom.

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