CN219458047U - Maintenance-free ground net for photovoltaic rapid grounding - Google Patents

Abstract

The utility model discloses a maintenance-free grounding grid for photovoltaic rapid grounding, which is characterized in that a grounding down-lead is fixedly connected to the lower part of a hot galvanizing metal connecting piece, a plurality of horizontal grounding bodies are arranged below the grounding down-lead, the horizontal grounding bodies are buried below the ground, a nonmetal clamp is arranged between the grounding down-lead and the horizontal grounding bodies, the nonmetal clamp consists of a nonmetal wire clamp and an inserting plate, one side of the grounding down-lead, which is opposite to the horizontal grounding body, extends into the inner side of the nonmetal wire clamp and is in contact with the nonmetal wire clamp, the inserting plate is arranged on the upper side of the nonmetal wire clamp and is connected with the nonmetal wire clamp in a front-back sliding manner, and the nonmetal clamp is arranged for simple operation, so that electricity is not required, the harm of welding smoke to a human body and the pollution to the atmosphere in the welding process are reduced, and the possibility of the grounding body being corroded is also reduced.

Description

Maintenance-free ground net for photovoltaic rapid grounding

Technical Field

The utility model relates to the field of photovoltaic power generation, in particular to a maintenance-free grounding grid for photovoltaic rapid grounding.

Background

The photovoltaic power generation system is the most environment-friendly new energy industry of new generation, the cost and the importance of system equipment are also higher, lightning protection grounding treatment is needed for exerting the efficiency of the system equipment for long-term normal operation, the domestic and foreign photovoltaic grounding grid usually adopts metal grounding materials such as flat steel, stainless steel, copper and the like, besides the problems of high transportation and construction difficulty and easy occurrence of theft phenomenon, practical operation experience shows that the flat steel and galvanized steel grounding materials corrode faster, the service life of the grounding grid is influenced, and in addition, because the photovoltaic field construction is not in an ideal state, a plurality of rugged positions are provided, the transportation and construction of the grounding grid are difficult, the combination degree of the grounding grid and soil is not high, and the like.

Disclosure of Invention

The utility model aims to provide a maintenance-free grounding grid for photovoltaic rapid grounding, which can shorten the construction period, reduce the construction difficulty and improve the service life of the grounding grid.

In order to achieve the above object, a maintenance-free ground net for rapid grounding of a photovoltaic is provided, including a photovoltaic support, its characterized in that: the utility model discloses a photovoltaic support, including photovoltaic support, grounding downlead, non-metallic clamp, picture peg, wire clip, welding fume, ground, welding fume, ground and the like are all buried in the below on ground, be provided with non-metallic clamp between grounding downlead and the horizontal grounding, non-metallic clamp comprises non-metallic clamp and picture peg, the inboard of non-metallic clamp and both mutual contact are all stretched into to the relative one side of grounding downlead and horizontal grounding, the picture peg is located the upside of non-metallic clamp and carries out simple operation rather than front and back sliding connection through setting up non-metallic clamp, has reduced the injury of welding fume to the human body and has reduced the possibility of ground being corroded to the ground in the welding process.

As a further description of the above technical solution: and a nonmetal special binding clip is arranged between the horizontal grounding bodies, so that the rapid and free laying is facilitated.

As a further description of the above technical solution: the grounding down conductor and the horizontal grounding body are made of flexible graphite, the flexible graphite is used as the horizontal grounding body of the photovoltaic factory, the horizontal grounding body can be processed into a large length according to requirements, and the horizontal grounding body can be directly and freely laid far away in the grounding ditch after being disassembled and assembled on site, so that intermediate connection links are reduced, manual labor is saved, construction difficulty is greatly reduced, construction period is shortened, and cost is saved.

As a further description of the above technical solution: the horizontal grounding body at the box transformer substation grounding is provided with a plurality of carbon crystal grounding modules, and the carbon crystal grounding modules are arranged in other grounding areas at intervals, so that the construction difficulty is furthest reduced on the premise that the grounding meets the requirements.

As a further description of the above technical solution: the outside of ground connection downlead has cup jointed the lag, the lag all adopts insulating material and outside surface coating colour is greenish yellow, can prevent rain wash and strong ultraviolet radiation effectively when warning, stops artificial destruction.

As a further description of the above technical solution: the horizontal grounding body surrounds the photovoltaic field area and is uniformly arranged to form an annular ground net, and an equalizing ring is arranged on the outer side of the annular ground net, so that current is conveniently and rapidly discharged.

The utility model has the following beneficial effects:

1. according to the utility model, the flexible graphite is used as the horizontal grounding body of the photovoltaic factory, the horizontal grounding body can be processed into a large length according to the requirement, and the horizontal grounding body can be directly and remotely laid in a grounding ditch after being disassembled on site, so that the intermediate connecting link is reduced, the manual labor is saved, the construction difficulty is greatly reduced, the construction period is shortened, the cost is saved, the formed grounding grid has good ground contact effect, the time of discharging current is short, the corrosion resistance and the low resistance are good, the resistance can be kept stable for a long time, and the safety performance of personnel and equipment is improved.

2. Through setting up non-metal anchor clamps and carrying out simple operation, need not the electricity, reduced the welding smog to human injury and to atmospheric pollution in the welding process, also reduced the possibility that the grounding body was corroded, improved the life of ground net.

Drawings

FIG. 1 is a schematic view of a horizontal grounding body and a non-metallic fixture in a maintenance-free grounding grid for photovoltaic rapid grounding according to the present utility model;

fig. 2 is a schematic diagram illustrating connection between a grounding down-conductor and a horizontal grounding body in a maintenance-free grounding grid for rapid grounding of a photovoltaic device according to the present utility model;

FIG. 3 is a schematic view of a hot galvanized metal connector and ground down conductor in a maintenance-free counterpoise for photovoltaic quick grounding according to the present utility model;

fig. 4 is a schematic diagram of a photovoltaic bracket in a maintenance-free grounding grid for rapid grounding of photovoltaic according to the present utility model

Fig. 5 is a schematic clamping diagram of a non-metal fixture in a maintenance-free grounding grid for photovoltaic rapid grounding according to the present utility model;

fig. 6 is a schematic plan view of a photovoltaic field main ground network connection of a maintenance-free ground network for photovoltaic rapid grounding according to the present utility model;

fig. 7 is a design diagram of a box transformer grounding of a maintenance-free grounding grid for photovoltaic rapid grounding.

1, a photovoltaic bracket; 2. a thread groove; 3. a hot dip galvanised metal connector; 4. a ground down-lead; 5. a protective sleeve; 6. a horizontal grounding body; 7. a non-metallic wire clip; 8. inserting plate; 9. a non-metal special jointing clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, equidistance is equipped with a plurality of screw thread groove 2 on the photovoltaic support 1, the below of photovoltaic support 1 is provided with hot galvanizing metal connecting piece 3, the front side fixedly connected with a plurality of bolt head of hot galvanizing metal connecting piece 3, the bolt head cooperatees with screw thread groove 2 on the photovoltaic support 1, the below fixedly connected with ground down lead 4 of hot galvanizing metal connecting piece 3, the below of ground down lead 4 is provided with a plurality of horizontal grounding body 6, horizontal grounding body 6 all buries in the below on ground, be provided with non-metallic clamp between ground down lead 4 and the horizontal grounding body 6, non-metallic clamp comprises non-metallic clamp 7 and picture peg 8, the inboard of non-metallic clamp 7 and both contact each other are all stretched into to one side that ground down lead 4 and horizontal grounding body 6 are relative, picture peg 8 is located the upside of non-metallic clamp 7 and with its front and back sliding connection, be provided with non-metallic dedicated 9 between horizontal grounding body 6, ground down lead 4 and horizontal grounding body 6 adopt the equal graphite box to adopt the ground down lead to evenly to cover the annular ground down lead, the equal ground down lead 4 and the equal annular grounding body 5 of the side of the thermal insulation cover, the equal-to adopt the annular ground down lead to cover the thermal insulation cover, the equal-insulating layer of the equal-to cover is formed by the annular ground down cover, the equal-plate 5 is arranged outside, the equal-color of the equal-cover is set up outside of the thermal cover.

Working principle: according to the utility model, a set of carbon crystal grounding modules is paved at intervals of 50-100 meters in the construction of the ground network, the horizontal grounding bodies 6 are clamped by a nonmetallic clamp to be used as leakage current, meanwhile, the contact resistance between the horizontal grounding bodies 6 is reduced, the horizontal grounding bodies 6 are paved around the box transformer in the box transformer area of a photovoltaic factory, a set of carbon crystal grounding modules is embedded in four sides of the box transformer area, the upper ends of the carbon crystal grounding modules are connected with the grounding down lead 4 through bolts and nuts in a threaded manner, the installation is convenient, and fault current can be quickly leaked into the ground network along the grounding down lead 4.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A maintenance-free ground net for quick ground connection of photovoltaic, includes photovoltaic support (1), its characterized in that: equidistance is equipped with a plurality of screw groove (2) on photovoltaic support (1), the below of photovoltaic support (1) is provided with hot-galvanize metal connecting piece (3), the front side fixedly connected with of hot-galvanize metal connecting piece (3) a plurality of bolt head, the bolt head cooperatees with screw groove (2) on photovoltaic support (1), the below fixedly connected with ground connection downlead (4) of hot-galvanize metal connecting piece (3), the below of ground connection downlead (4) is provided with a plurality of horizontal ground connection body (6), the below on ground connection body (6) is all buried underground, be provided with non-metallic anchor clamps between ground connection downlead (4) and horizontal ground connection body (6), non-metallic anchor clamps comprise non-metallic anchor clamps (7) and picture peg (8), the inboard and the mutual contact of non-metallic anchor clamps (7) are all stretched into to one side that ground connection body (6) is relative to ground connection downlead (4), both (8) are located the non-metallic anchor clamps (7) and slide on its back side.

2. A maintenance-free counterpoise for photovoltaic rapid grounding according to claim 1, wherein: a nonmetal special jointing clamp (9) is arranged between the horizontal grounding bodies (6).

3. A maintenance-free counterpoise for photovoltaic rapid grounding according to claim 1, wherein: the grounding down-lead (4) and the horizontal grounding body (6) are made of flexible graphite.

4. A maintenance-free counterpoise for photovoltaic rapid grounding according to claim 1, wherein: the outside of ground connection downlead (4) has cup jointed lag (5), lag (5) all adopt insulating material and outside surface coating colour be yellow green.

5. A maintenance-free counterpoise for photovoltaic rapid grounding according to claim 1, wherein: the horizontal grounding bodies (6) are uniformly arranged around the photovoltaic field to form a ring-shaped grounding net, and the outer side of the ring-shaped grounding net is provided with a grading ring.