CN217281235U - Sharing grounding system of transmission line iron tower and photovoltaic power station - Google Patents

Abstract

The utility model provides a transmission line iron tower and photovoltaic power plant's sharing ground system, include: the first grounding module is connected with a plurality of tower legs of the power transmission line iron tower; the second grounding module is connected with the photovoltaic power station; and sharing ground connection module, including first grounding body with set up in at least one low resistance module of first grounding body, wherein, first ground connection module and second ground connection module are connected respectively to the both ends of first grounding body, through the utility model discloses can realize transmission line iron tower and photovoltaic power plant's sharing ground connection, reduce the ground connection material use amount and reduce engineering cost, reduce ground resistance, satisfy the lightning protection needs.

Description

Sharing grounding system of transmission line iron tower and photovoltaic power station

Technical Field

The utility model relates to a earthing device technical field especially relates to a transmission line iron tower and photovoltaic power plant's sharing ground connection system.

Background

The grounding device is a basic measure for lightning protection of buildings or structures, can be an artificial grounding electrode or a natural grounding electrode, preferentially selects the natural grounding electrode under general conditions, and adds an artificial grounding body when the natural grounding electrode does not meet the requirement of grounding resistance. If the photovoltaic power station is adjacent to the overhead transmission line, the construction of a shared grounding system can be considered, and meanwhile, the grounding requirements of the overhead transmission line and the photovoltaic power station are met. At present, a shared grounding device for a photovoltaic power station and an overhead transmission line iron tower when approaching does not exist.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, an object of the utility model is to provide a transmission line iron tower and photovoltaic power plant's sharing ground system, include: the first grounding module is connected with a plurality of tower legs of the power transmission line iron tower; the second grounding module is connected with the photovoltaic power station; and the shared grounding module comprises a first grounding body and at least one low-resistance module arranged on the first grounding body, wherein two ends of the first grounding body are respectively connected with the first grounding module and the second grounding module.

Optionally, the first grounding module comprises: the plurality of grounding downlinks are respectively connected with the plurality of tower legs; and a second ground body connecting the plurality of ground down leads and the first ground body.

Optionally, the ground down conductor comprises: galvanized flat steel connected with the tower legs; and the galvanized round steel down lead is connected with the galvanized flat steel and the second grounding body.

Optionally, the galvanized flat steel is provided with a plurality of mounting holes, and the galvanized flat steel is connected with the tower legs through the plurality of mounting holes.

Optionally, the second grounding module comprises: the plurality of grounding connecting wires are respectively connected with the photovoltaic support of the photovoltaic power station, and the third grounding body is connected with the plurality of grounding connecting wires and the first grounding body.

Optionally, the ground connection line is bolted to the photovoltaic support.

Optionally, the ground connection line is connected to the third ground body through a hoop-type ground clip.

Optionally, the ground connection line is a copper stranded wire.

Optionally, the first ground body is galvanized round steel.

Optionally, the second ground body is ring-shaped.

The embodiment of the utility model provides a transmission line iron tower and photovoltaic power plant's sharing ground system, the first grounding body through sharing ground module is connected transmission line iron tower's first ground module and photovoltaic power plant's second ground module, and at least one low resistance module through sharing ground module setting realizes transmission line iron tower and photovoltaic power plant's ground connection sharing to reduce ground material use amount and reduce engineering cost, reduce ground resistance, satisfy the lightning protection needs.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a shared grounding system according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a shared ground module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of laying a shared ground module according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first grounding module according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a grounding down-lead according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a grounding downlead connecting tower leg according to an embodiment of the present invention;

fig. 7 is a partial schematic view of a second grounding body according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second grounding module according to an embodiment of the present invention;

fig. 9 is a schematic view of a connection structure of one end of the ground connection line according to an embodiment of the present invention;

fig. 10 is a schematic view of another end connection structure of the ground connection line according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

Fig. 1 is a schematic diagram of a shared grounding system according to an embodiment of the present invention, as shown in fig. 1, the shared grounding system generally includes: a first grounding module 10, a second grounding module 20, and a shared grounding module 30. The first grounding module 10 is connected with a plurality of tower legs 1 of the transmission line iron tower, buried underground (for example, the depth is 0.8 m) of the transmission line iron tower and used as a grounding device of the transmission line iron tower; the second grounding module 20 is connected with the photovoltaic power station 2 and is used as a grounding device of the photovoltaic power station 2; the shared ground module 30 includes a first ground body 301 and at least one low resistance module 302 disposed on the first ground body 301, wherein two ends of the first ground body 301 are connected to the first ground module 10 and the second ground module 20, respectively. Alternatively, the first grounding body 301 may be galvanized round steel, the length of which is determined according to the actual distance between the power transmission line tower and the photovoltaic power station 2, and, as shown in fig. 2, each low-resistance module 302 is welded to the first grounding body 301 through flat steel at one end.

Fig. 3 is a schematic diagram of the laying of the shared grounding module provided by an embodiment of the present invention, as shown in fig. 3, the shared grounding module 30 adopts a horizontal laying mode, the depth of the grounding groove is generally not less than 0.8 m, the slope is large, the rugged cliff terrain with poor natural condition is allowed to be obliquely installed by the module on the ray, after the grounding groove is dug, the fine soil on the layer is firstly padded, then the module is put in, and the fine soil is backfilled and tamped around the module. In actual laying, can adjust the quantity of first grounding body 301 and low resistance module 302 according to position, topography, the soil condition of actual transmission line iron tower and photovoltaic power plant, in the higher area of soil resistivity, the quantity of multiplicable low resistance module to satisfy actual engineering demand, make the ground resistance of overhead line and photovoltaic power plant all satisfy the requirement.

The embodiment of the utility model provides a transmission line iron tower and photovoltaic power plant's sharing ground system, the first grounding body through sharing ground module is connected transmission line iron tower's first ground module and photovoltaic power plant's second ground module, and at least one low resistance module through sharing ground module setting realizes transmission line iron tower and photovoltaic power plant's ground connection sharing to reduce ground material use amount and reduce engineering cost, reduce ground resistance, satisfy the lightning protection needs.

Optionally, fig. 4 is a schematic structural diagram of a first grounding module according to an embodiment of the present invention, as shown in fig. 4, the first grounding module 10 includes a plurality of grounding downleads 101 and a second grounding body 102, wherein the number of the grounding downleads 101 corresponds to the number of the tower legs, that is, each grounding downlead 101 is connected to one tower leg 1. Alternatively, as shown in fig. 5, the ground downlead 101 includes a galvanized flat steel 101a and a galvanized round steel downlead 101c, wherein the galvanized flat steel 101a has a specification of, for example, 90mm long, 70mm wide, and 4mm thick, and the galvanized round steel downlead 101c may be 4m long Φ 12 galvanized round steel. As shown in fig. 6, the galvanized flat steel 101a is provided with a plurality of mounting holes 101b, the galvanized flat steel 101a is connected to the tower leg 1 through bolts and the plurality of mounting holes 101b, one end of the galvanized round steel down lead 101c is connected to the galvanized flat steel 101a by welding, and the other end is welded to the second grounding body 102. In some embodiments, as shown in fig. 7, the second grounding body 102 may be a ring formed by welding Φ 12 galvanized round steel, the welding position is not less than 72mm, and the outer diameter of the ring-shaped second grounding body 102 is determined by the size of the iron tower foundation so as to just surround the iron tower, a plurality of grounding down leads 101 (specifically, galvanized round steel down leads 101c) are led out from the legs of the iron tower and then enter the ground, the depth is not less than 0.8 m, and then the ring-shaped second grounding body 102 is connected with the second grounding body 102 by welding, and the ring-shaped second grounding body 102 is further connected with the first grounding body 301.

Optionally, fig. 8 is a schematic structural diagram of a second grounding module according to an embodiment of the present invention, and as shown in fig. 8, the second grounding module 20 includes a plurality of grounding connection lines 201 and a third grounding body 202. The plurality of ground connection lines 201 may be, for example, 16mm2 copper stranded wires, one end of each ground connection line is connected to the photovoltaic support of the photovoltaic power plant 2, and the other end of each ground connection line is connected to the third ground body 202. Alternatively, as shown in fig. 9 and 10, one end of the ground connection line 201 (copper stranded wire) is connected to the photovoltaic bracket by a bolt, and the other end is connected to the third ground body 202 by a hoop-type ground clip. The third grounding body 202 may be formed by welding phi 12 galvanized round steel, forms an arbitrary irregular polygon according to the layout of the photovoltaic power station, and is connected to the first grounding body 301.

The utility model provides a transmission line iron tower and photovoltaic power plant's sharing ground system has following advantage:

(1) the method is economic and applicable: the grounding device is shared by the power transmission line and the photovoltaic power station, so that the grounding material quantity is reduced, and the engineering investment is reduced;

(2) the effect is better: the same grounding material can achieve lower grounding resistance, so that the grounding resistance of the overhead transmission line and the photovoltaic power station is lower, and the lightning protection effect is better.

(3) Is convenient and flexible: the grounding device is suitable for grounding requirements of various overhead transmission lines and various types of photovoltaic power stations.

It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a sharing ground system of transmission line iron tower and photovoltaic power plant which characterized in that includes:

the first grounding module (10) is connected with a plurality of tower legs (1) of the power transmission line iron tower;

a second grounding module (20) connected to the photovoltaic power plant (2); and

the shared grounding module (30) comprises a first grounding body (301) and at least one low-resistance module (302) arranged on the first grounding body (301), wherein two ends of the first grounding body (301) are respectively connected with the first grounding module (10) and the second grounding module (20).

2. The system according to claim 1, characterized in that said first grounding module (10) comprises:

a plurality of ground downlinks (101) connected to the plurality of tower legs (1), respectively; and

a second ground body (102) connecting the plurality of ground down leads (101) and the first ground body (301).

3. The system of claim 2, wherein the ground down conductor (101) comprises:

the galvanized flat steel (101a) is connected with the tower legs (1); and

and a galvanized round steel down lead (101c) connecting the galvanized flat steel (101a) and the second grounding body (102).

4. A system according to claim 3, characterized in that the galvanized flat steel (101a) is provided with a plurality of mounting holes (101b), through which the galvanized flat steel (101a) is connected to the tower leg (1).

5. The system of claim 1, wherein the second grounding module (20) comprises:

a plurality of ground connection lines (201) respectively connected to the photovoltaic supports of the photovoltaic power station (2); and

a third ground body (202) connecting the plurality of ground connection lines (201) and the first ground body (301).

6. The system according to claim 5, characterized in that the ground connection line (201) is bolted to the photovoltaic support.

7. The system of claim 5, wherein the ground connection line (201) is connected to the third ground body (202) by a hoop-type ground clip.

8. A system according to any of claims 5-7, characterized in that the ground connection (201) is a copper strand.

9. The system of claim 1, wherein the first grounding body (301) is galvanized round steel.

10. The system of claim 2, wherein the second grounding body (102) is ring-shaped.

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