CN214313565U - Grounding device adopting metal foundation as natural grounding body - Google Patents
Grounding device adopting metal foundation as natural grounding body Download PDFInfo
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- CN214313565U CN214313565U CN202120636108.5U CN202120636108U CN214313565U CN 214313565 U CN214313565 U CN 214313565U CN 202120636108 U CN202120636108 U CN 202120636108U CN 214313565 U CN214313565 U CN 214313565U
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Abstract
The utility model discloses a metal foundation as the earthing device of the natural grounding body, be applicable to metal foundation device its metal stock, metal tower leg connecting portion and the metal fixing bolt that contain metal frame and multiunit and match each other for be fixed in each metal tower leg under the ground, it contains the natural grounding body and magnesium alloy sacrificial anode. Wherein the natural grounding body is formed by connecting the metal frame of the metal foundation device with the corresponding angle steel of each tower leg through each metal fixing bolt and deeply burying the metal frame and the metal anchor rod of the metal foundation device, and the metal frame and the metal anchor rod of the metal foundation device are made of metal and are all connected by bolts; the magnesium alloy sacrificial anode is completely buried in the ground near the metal base device. When the lightning protection effect of the iron tower is ensured, the materials and the working hours are further saved, the ecological environment is protected, and the economic benefit is remarkable.
Description
Technical Field
The utility model relates to a transmission tower's lightning grounding device especially indicates an adopt grounding device of all-metal basis as the natural grounding body.
Background
About half of the total number of trips that a high voltage line runs are caused by lightning strikes. The existing tower grounding device can release lightning current to the ground when a transmission line or a tower is struck by lightning, so that the potential of the tower is increased as little as possible, and the lightning counterattack tripping rate is reduced.
Specifically, as shown in fig. 1, the existing grounding device for the high-voltage tower needs to be separately provided with galvanized round steel, copper-clad steel or graphite-based flexible composite grounding on the basis of fixing the power transmission tower, and in addition, conductor lines made of different materials need to be correspondingly used and arranged around tower legs of the power transmission tower in the modes of fig. 2A, fig. 2B, fig. 3A, fig. 3B, fig. 4A and fig. 4B, so that the effect of releasing lightning current to the ground can be achieved. The grounding device as described above has the following drawbacks.
(1) As shown in fig. 2A, 2B, 3A, 3B, 4A and 4B, the conventional ground downlead is arranged to extend over the plane of the tower foundation, for example, H, L in the figure is usually 10-20m long, but the total length of the ground excavation can reach hundreds of meters, and when the ecological environment is weak and the surface soil covering layer is thin in the construction range, the ground vegetation is damaged and cannot be recovered for many years.
(2) The traditional grounding device is a set of materials which are independently added outside a foundation and an iron tower, and particularly when copper-clad steel grounding and graphite-based flexible composite grounding are adopted, the consumed material and labor cost are considerable.
Aiming at the defects of the existing grounding device, an innovative grounding device adopting an all-metal foundation as a natural grounding body is needed, the lightning protection effect of the iron tower is ensured, meanwhile, the materials and the working hours are further saved, the ecological environment is protected, and the obvious economic benefit is achieved.
SUMMERY OF THE UTILITY MODEL
To the defect that above-mentioned prior art exists, the utility model discloses a main aim at provides an adopt metal foundation as the earthing device of natural grounding body, when guaranteeing iron tower lightning protection effect, further save material and man-hour, protection natural environment.
The technical means adopted by the utility model are as follows.
The metal foundation is adopted as a grounding device of a natural grounding body, is suitable for a metal foundation device, comprises a metal frame, a plurality of groups of mutually matched metal anchor rods, metal tower leg connecting parts and metal fixing bolts, is used for fixing each metal tower leg below the ground, and is characterized by comprising the natural grounding body and a magnesium alloy sacrificial anode.
The natural grounding body is formed by connecting the metal frame of the metal foundation device with the corresponding angle steel of each tower leg through each metal fixing bolt and deeply burying the metal frame and the metal anchor rod of the metal foundation device in the ground, wherein the metal frame and the metal anchor rod of the metal foundation device are made of metal materials and are all connected by bolts; the magnesium alloy sacrificial anode is fully buried underground near the metal base device.
Furthermore, the device also comprises a detection pile, a first lead and a second lead.
Wherein, the detecting pile stands near the metal foundation device and is partially buried under the ground; the end part of the detection pile buried underground is respectively communicated with the metal fixing bolt of the metal foundation device and the magnesium alloy sacrificial anode through the first lead and the second lead.
The exposed part of the detection pile is provided with an inspection window.
Further, the instrumentation stub may be an IoT stub with internet of things functionality.
Further, the metal frame and the metal anchor rod of the metal foundation device are both structural steel.
The utility model has the advantages that: the grounding device adopting the all-metal foundation as the natural grounding body is innovatively provided, the lightning protection effect of the iron tower is guaranteed, meanwhile, the materials and the working hours are further saved, the ecological environment is protected, and the remarkable economic benefit is achieved. The method is particularly shown in the specification.
(1) The existing deep buried all-metal foundation is fully utilized as a natural grounding body, a grounding down lead is not separately arranged, the material quantity of a grounding device is saved, the excavation construction is not needed, the working hours are saved, and the damage to the surrounding natural environment is avoided.
(2) The all-metal foundation replacing the grounding body is connected by bolts, and concrete cast-in-place components and welding components are not needed, so that the construction period is shortened.
(3) The IoT detection pile exposed out of the ground can observe the working state of the sacrificial anode in the soil under the condition of no excavation, has the function of Internet of things equipment and simultaneously realizes the storage and backup of iron tower sensor data.
Drawings
Fig. 1 is a schematic diagram illustrating a conventional grounding device arranged on a tower foundation.
Fig. 2A and 2B are schematic front and top layout views of a conventional grounding device on a tower leg a side of a tower foundation.
Fig. 3A and 3B are schematic front and top layout views of a conventional grounding device on a tower leg B side of a tower foundation.
Fig. 4A and 4B are schematic front and top layout views of a conventional grounding device on a tower leg C side of a tower foundation.
Fig. 5 is the overall structure diagram of the grounding device of the present invention using the metal foundation as the natural grounding body.
Detailed Description
As shown in fig. 5, the grounding device of the present invention using metal foundation as natural grounding body is suitable for a metal foundation device 100, which comprises a metal frame 10 and a plurality of sets of mutually matched metal anchor rods 11, metal tower leg connecting portions 13 and metal fixing bolts 14, for fixing each metal tower leg 12 under the ground, and which comprises a natural grounding body 30 and a magnesium alloy sacrificial anode 21.
The natural earth structure 30 is formed by connecting the metal frame 10 of the metal foundation device 100 to the corresponding angle iron of the tower leg 12 by the metal fixing bolt 14 and burying the metal frame 10 and the metal anchor 11 in the ground, and the metal frame 10 and the metal anchor 11 of the metal foundation device 100 are made of metal and are all connected by bolts. Because the iron tower is connected through the metal parts, the metal tower legs 12 and the metal anchor rods 11 which are buried in the soil are longer, and the current can be directly led into the deeper soil layer, so that the effect of a lightning protection natural grounding body is achieved without additionally arranging a grounding lead. The magnesium alloy sacrificial anode 21 is buried under the ground near the metal base device 100, and the metal is subject to electrochemical corrosion in the soil due to the underground water in the soil, so the magnesium alloy sacrificial anode 21 buried beside the metal base device 100 directly connects the protected metal with the sacrificial anode having a lower potential to form a current loop, so that the metal base device 100 is polarized negatively, and the metal base device 100 is protected by the corrosion of the sacrificial anode.
Preferably, as shown in fig. 5, the device further comprises a detection peg 20, a first wire 22 and a second wire 23. The detection pile 20 stands near the metal foundation device 100 and is partially buried under the ground. The end of the detection pile 20 buried underground is respectively communicated with the metal fixing bolt 14 and the magnesium alloy sacrificial anode 21 of the metal foundation device 100 through the first lead 22 and the second lead 23. The exposed portion of the inspection stake 20 is provided with an inspection window 24. Therefore, the working state of the sacrificial anode in the soil can be observed under the condition of no excavation.
Preferably, as shown in fig. 5, the detection pile 20 may be an IoT pile having the internet of things function, and may be used as a carrier and a storage terminal of intelligent sensing equipment for weather, waving, breeze vibration and the like on an iron tower, and meanwhile, the internet of things function of the power transmission tower is realized.
Preferably, as shown in fig. 5, the metal frame 10 and the metal anchor 11 of the metal foundation device 100 are both made of structural steel.
To sum up, adopt the metal foundation as the earthing device of natural grounding body, when guaranteeing iron tower lightning protection effect, further save material and man-hour, protected ecological environment, have apparent economic benefits.
Claims (4)
1. The grounding device which adopts a metal foundation as a natural grounding body is suitable for a metal foundation device (100) and comprises a metal frame (10), a plurality of groups of mutually matched metal anchor rods (11), metal tower leg connecting parts (13) and metal fixing bolts (14) for fixing each metal tower leg (12) under the ground, and is characterized by comprising a natural grounding body (30) and a magnesium alloy sacrificial anode (21);
the natural grounding body (30) is formed by connecting the metal frame (10) of the metal foundation device (100) with the angle steel of each corresponding tower leg (12) through each metal fixing bolt (14) and deeply burying the metal frame and the metal anchor rod (11) of the metal foundation device (100) in the ground, wherein the metal frame (10) and the metal anchor rod (11) of the metal foundation device (100) are made of metal materials and are all connected through bolts;
the magnesium alloy sacrificial anode (21) is completely buried in the ground near the metal base unit (100).
2. A grounding device employing a metal foundation as a natural grounding body as claimed in claim 1, wherein: the device also comprises a detection pile (20), a first lead (22) and a second lead (23);
wherein the detection pile (20) stands near the metal foundation device (100) and is partially buried under the ground; the end part of the detection pile (20) buried underground is communicated with the magnesium alloy sacrificial anode (21) through the first lead (22), and the end part of the detection pile (20) buried underground is communicated with the metal fixing bolt (14) of the metal foundation device (100) through a second lead (23);
the exposed part of the detection pile (20) is provided with an inspection window (24).
3. A grounding device employing a metal foundation as a natural grounding body as claimed in claim 2, wherein: the detection stub (20) is an IoT stub with the function of the Internet of things.
4. A grounding device employing a metal foundation as a natural grounding body as claimed in claim 1, wherein: the metal frame (10) and the metal anchor rod (11) of the metal foundation device (100) are both structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636108.5U CN214313565U (en) | 2021-03-29 | 2021-03-29 | Grounding device adopting metal foundation as natural grounding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120636108.5U CN214313565U (en) | 2021-03-29 | 2021-03-29 | Grounding device adopting metal foundation as natural grounding body |
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| Publication Number | Publication Date |
|---|---|
| CN214313565U true CN214313565U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120636108.5U Active CN214313565U (en) | 2021-03-29 | 2021-03-29 | Grounding device adopting metal foundation as natural grounding body |
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| CN (1) | CN214313565U (en) |
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2021
- 2021-03-29 CN CN202120636108.5U patent/CN214313565U/en active Active
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