Enhanced current diffusion type vertical grounding electrode

Abstract

The utility model relates to the field of electric power, and discloses an enhanced current diffusion type vertical grounding electrode, which comprises a first-stage vertical section, a second-stage vertical section, a third-stage vertical section and a final-stage vertical section which are sequentially connected end to end from top to bottom, the first-stage vertical section, the second-stage vertical section, the third-stage vertical section and the final-stage vertical section are all made of steel pipes, the first-stage vertical section, the second-stage vertical section, the third-stage vertical section and the final-stage vertical section are sequentially connected, and the first-stage vertical section is in threaded connection with the second-stage vertical section through a connecting pipe; the second-stage vertical section is in threaded connection with the third-stage vertical section through a connecting pipe, and the third-stage vertical section is in threaded connection with the last-stage vertical section through a connecting pipe; the left sides and the right sides of the outer walls of the first-stage vertical section, the second-stage vertical section, the third-stage vertical section and the last-stage vertical section are all vertically welded with flow diffusing reinforcing needles.

Description

Technical Field

[0001] The utility model relates to the field of electric power, and specifically is an enhanced diffuser type vertical grounding electrode. Background Art

[0002] The lightning protection grounding network of the power line tower plays a vital role in the lightning resistance level of the power line. After the power line is struck by lightning, most of its energy needs to pass through the lightning protection grounding network. At present, the vertical grounding electrodes used in the lightning protection grounding networks of power line towers of various levels are basically hot-dip galvanized steel pipes or hot-dip galvanized angle steels and graphene vertical grounding electrodes. The hot-dip galvanized metal materials are directly cut according to the length specifications. This method requires low investment, is simple and convenient, and the length of the vertical grounding electrode can be cut according to the actual conditions on site. The graphene vertical grounding electrode is used in a fixed length. If the remaining material is cut off, it will be wasted. Most of the actual sites encountered in the project are soil stratification, especially in some mountainous power line construction projects. The soil resistivity of each layer is different, resulting in the most important indicator of the vertical grounding electrode being the effective contact area with the underground soil. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the utility model provides an enhanced current-scattering type vertical grounding electrode.

[0004] The technical solution adopted by this utility model:

[0005] An enhanced diffuser type vertical grounding electrode comprises a first-level vertical section, a second-level vertical section, a third-level vertical section and a final-level vertical section which are connected end to end from top to bottom in sequence, wherein the first-level vertical section, the second-level vertical section, the third-level vertical section and the final-level vertical section are all made of steel pipes, and the first-level vertical section, the second-level vertical section, the third-level vertical section and the final-level vertical section are connected in sequence, wherein the first-level vertical section and the second-level vertical section are connected via a connecting pipe thread, the second-level vertical section and the third-level vertical section are connected via a connecting pipe thread, and the third-level vertical section and the final-level vertical section are connected via a connecting pipe thread; the first-level vertical section The left and right sides of the outer walls of the first-level vertical section, the second-level vertical section, the third-level vertical section and the last-level vertical section are vertically welded with diffusion enhancement needles, the outer walls of the first-level vertical section and the last-level vertical section have two pairs of diffusion enhancement needles, the outer walls of the second-level vertical section and the third-level vertical section have four pairs of diffusion enhancement needles, the top pair of diffusion enhancement needles are four hundred millimeters away from the top of the first-level vertical section, and the remaining diffusion enhancement needles are successively separated by two hundred millimeters from the previous pair of diffusion enhancement needles, the top of the left and right side walls of the first-level vertical section are welded with round steel pipes extending upward, the round steel pipes protrude three hundred millimeters from the top of the first-level vertical section, and the total length of the round steel pipes is four hundred millimeters.

[0006] The first-level vertical section, the second-level vertical section and the third-level vertical section are all 720 mm long and 4 mm thick. They are DN40 steel pipes. The lower outer wall of the first-level vertical section is processed with a 100 mm long external thread. The upper and lower outer walls of the second-level vertical section and the third-level vertical section are processed with a 100 mm long external thread. The last-level vertical section is a DN40 steel pipe and is 400 mm long with a wall thickness of 4 mm. The bottom quarter of the last-level vertical section is pointed, and the upper outer wall of the last-level vertical section is processed with a 100 mm long external thread.

[0007] The connecting pipe is a DN50 seamless steel pipe, two hundred millimeters long and four millimeters thick. The inner wall is processed with internal threads, which match the external threads.

[0008] The diffuser enhancement needle is a round steel with a diameter of ten millimeters, a total length of one hundred and twenty millimeters, and a needle tip length of twenty millimeters. Two adjacent pairs of diffuser enhancement needles are perpendicular to each other.

[0009] Beneficial effects of the utility model:

[0010] The utility model can easily adjust the total length of the vertical grounding electrode by increasing or decreasing the number of vertical sections to adapt to different geological conditions and grounding requirements. This design makes the application of vertical grounding electrodes in special areas more flexible and convenient. Welding the dispersion enhancement needles on the outer wall of the vertical section can significantly increase the contact area between the grounding electrode and the soil and improve the dispersion effect of the current. In particular, the design of two adjacent pairs of dispersion enhancement needles being perpendicular to each other can form a more uniform dispersion field and further improve the grounding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] The specific reference numerals in all the drawings are: 1. first-stage vertical section; 2. second-stage vertical section; 3. third-stage vertical section; 4. final-stage vertical section; 5. connecting pipe; 6. diffuser enhancement needle; 7. round steel pipe. DETAILED DESCRIPTION

[0013] like Figure 1As shown: an enhanced diffuser type vertical grounding electrode, comprising a first-level vertical section 1, a second-level vertical section 2, a third-level vertical section 3 and a final-level vertical section 4 which are connected end to end from top to bottom, the first-level vertical section 1, the second-level vertical section 2, the third-level vertical section 3 and the final-level vertical section 4 are all made of steel pipes, the first-level vertical section 1, the second-level vertical section 2, the third-level vertical section 3 and the final-level vertical section 4 are connected in sequence, the first-level vertical section 1 and the second-level vertical section 2 are threadedly connected through a connecting pipe 5, the second-level vertical section 2 and the third-level vertical section 3 are threadedly connected through a connecting pipe 5, and the third-level vertical section 3 and the final-level vertical section 4 are threadedly connected through a connecting pipe 5; the first The left and right sides of the outer walls of the vertical section 1, the second-level vertical section 2, the third-level vertical section 3 and the last-level vertical section 4 are vertically welded with diffusion enhancement needles 6. The outer walls of the first-level vertical section 1 and the last-level vertical section 4 have two pairs of diffusion enhancement needles 6. The outer walls of the second-level vertical section 2 and the third-level vertical section 3 have four pairs of diffusion enhancement needles 6. The top pair of diffusion enhancement needles 6 is four hundred millimeters away from the top of the first-level vertical section 1, and the remaining diffusion enhancement needles 6 are respectively spaced two hundred millimeters apart from the previous pair of diffusion enhancement needles 6. The tops of the left and right side walls of the first-level vertical section 1 are welded with round steel pipes 7 extending upward. The round steel pipes 7 protrude three hundred millimeters from the top of the first-level vertical section 1, and the total length of the round steel pipes 7 is four hundred millimeters.

[0014] The first-level vertical section 1, the second-level vertical section 2 and the third-level vertical section 3 are all 720 mm long and 4 mm thick, and are DN40 steel pipes. The lower outer wall of the first-level vertical section 1 is processed with a 100 mm long external thread, and the upper and lower outer walls of the second-level vertical section 2 and the third-level vertical section 3 are both processed with a 100 mm long external thread. The last-level vertical section 4 is a DN40 steel pipe and is 400 mm long and 4 mm thick. The bottom quarter of the last-level vertical section 4 is pointed, and the upper outer wall of the last-level vertical section 4 is processed with a 100 mm long external thread.

[0015] The connecting pipe 5 is a DN50 seamless steel pipe, 200 mm long, 4 mm thick, and has an internal thread processed on the inner wall, which cooperates with the external thread.

[0016] The diffuser enhancement needles 6 are round steel with a diameter of 10 mm, a total length of 120 mm, and a needle tip length of 20 mm. Two adjacent pairs of diffuser enhancement needles 6 are perpendicular to each other.

[0017] First, according to the on-site geological conditions and grounding requirements, the number and total length of the required vertical nodes (first-level vertical node 1, second-level vertical node 2, third-level vertical node 3, and final-level vertical node 4) are determined, among which the second-level vertical node 2 and the third-level vertical node 3 can be increased or decreased, and the diffuser enhancement needles 6 are welded to the outer walls of their respective vertical nodes according to the design requirements to ensure that the spacing and position of each pair of diffuser enhancement needles 6 are accurate;

[0018] Use the connecting pipe 5 to connect the first-stage vertical section 1, the second-stage vertical section 2, the third-stage vertical section 3 and the final-stage vertical section 4 in sequence end to end. When connecting, ensure that the internal thread and the external thread are closely matched to ensure the stability and sealing of the connection;

[0019] A round steel pipe 7 is welded on the top of the first-level vertical section 1 as a positioning or connection point during installation to facilitate subsequent connection with a horizontal grounding electrode or other equipment;

[0020] Transport the assembled enhanced diffused-current vertical grounding electrode to the installation site, determine the installation location according to the design drawings and site conditions, use an excavator or manually dig a hole to ensure that the hole depth is sufficient to accommodate the entire vertical grounding electrode and the bottom is flat, slowly place the vertical grounding electrode into the hole, be careful to keep it vertical and avoid tilting, use backfill materials (such as soil, concrete, etc.) to fill the hole, and tamp each layer to ensure that the vertical grounding electrode is firmly fixed, and as needed, connect the round steel pipe 7 at the top of the first-level vertical section 1 to the horizontal grounding electrode or other equipment to form a complete grounding system.

Claims

1. An enhanced current-dissipating vertical grounding electrode, characterized in that: The invention comprises a first-level vertical section (1), a second-level vertical section (2), a third-level vertical section (3) and a final-level vertical section (4) which are connected end to end in sequence from top to bottom. The first-level vertical section (1), the second-level vertical section (2), the third-level vertical section (3) and the final-level vertical section (4) are all made of steel pipes. The first-level vertical section (1), the second-level vertical section (2), the third-level vertical section (3) and the final-level vertical section (4) are connected in sequence. The first-level vertical section (1) and the second-level vertical section (2) are connected by threads through a connecting pipe (5). The second-level vertical section (2) and the third-level vertical section (3) are connected by threads through a connecting pipe (5). The third-level vertical section (3) and the final-level vertical section (4) are connected by threads through a connecting pipe (5). The first-level vertical section (1) The left and right sides of the outer walls of the second-level vertical section (2), the third-level vertical section (3) and the last-level vertical section (4) are vertically welded with diffuser enhancement needles (6); the outer walls of the first-level vertical section (1) and the last-level vertical section (4) are each provided with two pairs of diffuser enhancement needles (6); the outer walls of the second-level vertical section (2) and the third-level vertical section (3) are each provided with four pairs of diffuser enhancement needles (6); the top pair of diffuser enhancement needles (6) is 400 millimeters away from the top of the first-level vertical section (1); the remaining diffuser enhancement needles (6) are sequentially spaced 200 millimeters away from the top pair of diffuser enhancement needles (6); the tops of the left and right side walls of the first-level vertical section (1) are both welded with round steel pipes (7) extending upwards; the round steel pipes (7) protrude 300 millimeters from the top of the first-level vertical section (1); and the total length of the round steel pipes (7) is 400 millimeters.

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