CN217558472U

CN217558472U - A ground protection installation component for wind generating set

Info

Publication number: CN217558472U
Application number: CN202222019293.0U
Authority: CN
Inventors: 孙鹤; 宋玮; 刘先海; 刘光海; 王晨; 徐岩
Original assignee: Daanji Electric Green Hydrogen Energy Co ltd
Current assignee: Daanji Electric Green Hydrogen Energy Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-10-11
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a ground protection installation component for wind generating set, including support column, ground connection mount, compound cabin shell, wind wheel, metal mesh, lightning rod, rotary joint, directive wheel, ground connection column dish, horizontal voltage-sharing net, perpendicular earthing pole and conducting ring. The beneficial effects of the utility model are that: effectively prevent the side of thunderbolt around, thereby protect the inside electronic component in cabin, and unify the ground connection and the lightning rod leakage current ground connection route of wind wheel, reduce the spoilage of part in the whole subassembly, and make full use of steel frame construction and ground net, prevent the voltage counterattack after the leakage current, improve the security performance, reduce the leakage current and pass through the point, reduce the loss, and improved the safety of cabin internal elements greatly, and increase the leakage current area, prevent that the pressure release is too big in the twinkling of an eye, cause spare part overload operation, effectively prevent the thunder and lightning to invade the ripples.

Description

A ground protection installation component for wind generating set

Technical Field

The utility model relates to a ground protection subassembly specifically is a ground protection installation component for wind generating set, belongs to wind turbine generator system technical field.

Background

In recent years, wind power in emerging markets develops rapidly, and under the background of national policy support and energy supply tension, the manufacturing industry of Chinese wind power, particularly wind power equipment, also rises rapidly, and becomes the most active place of wind power in the world, and with the development of technical progress and environmental protection cause, wind power generation can completely compete with coal-fired power generation in commerce. With the continuous aggravation of the competition of the power industry, the excellent power enterprises in China increasingly attach more importance to the research on the industry market, particularly the deep research on the industrial environment and the wind power equipment, and the important research on the protection of the wind turbine generator.

Although the existing wind turbine generator grounding protection component is widely used, some problems exist in the actual use process:

1) The existing lightning and current leakage channels of the grounding protection installation component are mostly lightning receptors of blades, namely a blade flange, a bearing, a hub, a main shaft, a base, a yaw bearing, a tower barrel and the ground, the current leakage grounding of the whole process is complicated, more contact points are easy to damage parts, and the basic steel structure of the grounding protection installation component is not fully utilized for grounding;

2) The existing grounding protection installation assembly is generally directly grounded, but counterattack is sometimes caused, so that the whole wind turbine generator is damaged, certain potential safety hazards exist, the maintenance cost of the whole wind turbine generator is low, and the economic loss is large after the damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ground protection installation component for wind generating set for solving above-mentioned at least one technical problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a ground protection mounting assembly for a wind generating set, comprising:

the supporting mechanism comprises a supporting column, a grounding fixing frame and a composite cabin shell, the supporting column is fixedly connected with the grounding fixing frame, the grounding fixing frame is in a triangular pyramid structure, each point at the bottom end of the grounding fixing frame is fixedly connected with a grounding column disc and is uniformly fixed on the ground, a rotating steering wheel is arranged at the top of the supporting column, a rotating joint is fixedly connected to the top end of the steering wheel, and the composite cabin shell is fixedly connected with the top end of the rotating joint;

ground protection mechanism, it includes metal mesh, lightning rod, horizontal voltage-sharing net, perpendicular earthing pole and conducting ring, the metal mesh cover is established and is fixed in the outside of compound cabin shell, and the contact and the conducting ring fixed connection of metal mesh, conducting ring and swivelling joint fixed connection, the ground net is constituteed to horizontal voltage-sharing net and perpendicular earthing pole, and the vertical fixation between the two and bury underground, the horizontal voltage-sharing net is connected with the steel bar structure that the ground connection column dish extends to the ground, lightning rod and metal mesh fixed connection.

As a further aspect of the present invention: the wind wheel is rotatably connected with the gear, a lightning arrester is arranged on the inner side of a blade of the wind wheel, and an insulating ring is fixed between the wind wheel and the composite cabin shell.

As the utility model discloses further scheme again: the lightning rod is arranged at the top of the composite cabin shell, and an insulating coating is arranged on the outer side of the composite cabin shell.

As a further aspect of the present invention: the horizontal voltage-sharing net is made of hot-galvanized flat steel, the vertical grounding electrode is made of galvanized steel pipes, the laying depth of the horizontal voltage-sharing net is 0.8m away from the ground, and the grounding resistance value of the horizontal voltage-sharing net is less than or equal to 4 ohms.

As the utility model discloses further scheme again: support column and ground connection mount all adopt the steel to make, and the ground connection column dish is formed by galvanized steel pipe and the perpendicular welding of disc, and its bottom is connected through the bolt with ground.

The utility model has the advantages that:

1) The utility model discloses effectively prevent the side of thunderbolt and wind to protect the electronic component in the cabin, and unify the ground connection of wind wheel and lightning rod earial drainage ground connection route, reduce the spoilage of part in the whole subassembly, and make full use of steel frame construction and ground net, prevent the voltage counterattack after the earial drainage, improve the security performance;

2) The utility model discloses reduce the earial drainage through some, reduce the loss, and improved cabin inner member's safety greatly to increase the earial drainage area, prevent that the pressure release is too big in the twinkling of an eye, cause spare part overload operation, effectively prevent the thunder and lightning invasion ripples.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

fig. 3 is a schematic view of the front view structure of the present invention.

In the figure: 1. the device comprises a support column, 2, a grounding fixing frame, 3, a composite cabin shell, 4, a wind wheel, 5, a metal net, 6, a lightning rod, 7, a rotating joint, 8, a steering wheel, 9, a grounding column disc, 10, a horizontal voltage-sharing net, 11, a vertical grounding electrode, 12 and a conducting ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

As shown in fig. 1 to 3, a ground protection mounting assembly for a wind turbine generator set includes:

the supporting mechanism comprises a supporting column 1, a grounding fixing frame 2 and a composite cabin shell 3, wherein the supporting column 1 is fixedly connected with the grounding fixing frame 2, the grounding fixing frame 2 is in a triangular pyramid structure, each point at the bottom end of the grounding fixing frame is fixedly connected with a grounding column disc 9 and is uniformly fixed on the ground, a rotating steering wheel 8 is arranged at the top of the supporting column 1, a rotating joint 7 is fixedly connected to the top end of the steering wheel 8, and the composite cabin shell 3 is fixedly connected with the top end of the rotating joint 7;

ground protection mechanism, it includes metal mesh 5, the lightning rod 6, horizontal voltage-sharing net 10, perpendicular earthing pole 11 and conducting ring 12, the outside at compound cabin shell 3 is established to 5 covers of metal mesh, and metal mesh 5's contact and conducting ring 12 fixed connection, conducting ring 12 and rotary joint 7 fixed connection, the earthing net is constituteed to horizontal voltage-sharing net 10 and perpendicular earthing pole 11, vertical fixation and bury in the underground between the two, horizontal voltage-sharing net 10 is connected with the steel bar construction that ground connection column dish 9 extends to the ground bottom, lightning rod 6 and metal mesh 5 fixed connection.

The embodiment of the utility model provides an in, compound cabin shell 3 is inside to be provided with the generator and with the gear, and its outside is provided with wind wheel 4 of being connected with gear revolve, the blade inboard of wind wheel 4 is provided with the arrester, and be fixed with the insulating circle between wind wheel 4 and compound cabin shell 3, and metal mesh 5 is connected with the bull stick contact of wind wheel 4, carry out the drainage to the thunderbolt through the arrester of wind wheel 4, and directly shift to the metal mesh 5 with the ground connection route, reduce the lightning rate at other positions, thereby prolong the life of spare part, and protect 3 internal elements in compound cabin shell through the insulating circle.

The embodiment of the utility model provides an in, lightning rod 6 sets up in the top of compound cabin shell 3, and is equipped with insulating coating in the 3 outsides of compound cabin shell, improves its protection to inside motor and electronic component greatly through compound cabin shell 3, ensures its inside and external insulation, improves the safety of using.

Example two

ground protection mechanism, it includes metal mesh 5, the lightning rod 6, horizontal voltage-sharing net 10, perpendicular earthing pole 11 and conducting ring 12, the outside at compound cabin shell 3 is established to metal mesh 5 cover, and metal mesh 5's contact and conducting ring 12 fixed connection, conducting ring 12 and swivelling joint 7 fixed connection, the earthing net is constituteed with perpendicular earthing pole 11 to horizontal voltage-sharing net 10, vertical fixation between the two and bury in underground, horizontal voltage-sharing net 10 is connected to the steel bar structure that ground connection column dish 9 extends to the ground, lightning rod 6 and metal mesh 5 fixed connection.

The embodiment of the utility model provides an in, horizontal voltage-sharing net 10 is made by hot-galvanize band steel, and perpendicular earthing pole 11 is made by the galvanized steel pipe, horizontal voltage-sharing net 10 is laid the degree of depth apart from ground 0.8m, and the ground resistance less than or equal to 4 ohm of horizontal voltage-sharing net 10, carry out abundant derivation with the voltage that the top earial drainage got off through horizontal voltage-sharing net 10 and perpendicular earthing pole 11, and prevent counterattack, thereby improve generating set's safety in utilization, and it is better to go into formula structure security underground.

The embodiment of the utility model provides an in, support column 1 and ground connection mount 2 all adopt the steel to make, and ground connection post dish 9 is formed by galvanized steel pipe and the perpendicular welding of disc, and its bottom is connected through the bolt with ground, through the ground connection area of ground

connection post dish

9 and 2 increase support columns 1 of ground connection mount to make whole generating set more stable, and the earial drainage is rapider.

The working principle is as follows: when the device is used, a horizontal voltage-sharing net 10 and a vertical grounding electrode 11 are laid firstly, after a wind turbine generator is installed, a grounding column disc 9, a supporting column 1 and a grounding fixing frame 2 are erected and fixed, when thunderstorm weather occurs, lightning receptors on a lightning rod 6 and a wind wheel 4 conduct lightning strikes, the grounding path is directly transferred to a metal net 5, other parts are prevented from contacting the lightning strikes, the metal net 5 conducts current leakage and transmits the lightning strikes to a conducting ring 12 and a rotating connector 7, the lightning strikes are leaked to the grounding net formed by the horizontal voltage-sharing net 10 and the vertical grounding electrode 11 through the base steel structure of the supporting column 1 and the grounding fixing frame 2 on the bottom side, the metal net 5 is provided with a current leakage path, and the device has a certain buffering effect and is safe in use of the whole celestial body assembly.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A ground protection mounting assembly for a wind generating set, comprising:

the supporting mechanism comprises a supporting column (1), a grounding fixing frame (2) and a composite cabin shell (3), wherein the supporting column (1) is fixedly connected with the grounding fixing frame (2), the grounding fixing frame (2) is of a triangular pyramid structure, each point at the bottom end of the grounding fixing frame is fixedly connected with a grounding column disc (9) and is uniformly fixed on the ground, a rotating steering wheel (8) is arranged at the top of the supporting column (1), a rotating joint (7) is fixedly connected to the top end of the steering wheel (8), and the composite cabin shell (3) is fixedly connected with the top end of the rotating joint (7);

ground protection mechanism, it includes metal mesh (5), lightning rod (6), horizontal voltage-sharing net (10), perpendicular earthing pole (11) and conducting ring (12), metal mesh (5) cover is established and is fixed in the outside of compound cabin shell (3), and the contact and conducting ring (12) fixed connection of metal mesh (5), conducting ring (12) connect (7) fixed connection with rotating, the ground connection net is constituteed in horizontal voltage-sharing net (10) and perpendicular earthing pole (11), vertical fixation between the two and bury in the underground, horizontal voltage-sharing net (10) are connected with the steel bar structure that earthing post dish (9) extended to the ground, lightning rod (6) and metal mesh (5) fixed connection.

2. A ground protection mounting assembly for a wind turbine generator set according to claim 1, wherein: the wind power generation device is characterized in that a generator and a gear are arranged inside the composite cabin shell (3), a wind wheel (4) which is rotatably connected with the gear is arranged on the outer side of the composite cabin shell, a lightning arrester is arranged on the inner side of a blade of the wind wheel (4), and an insulating ring is fixed between the wind wheel (4) and the composite cabin shell (3).

3. A ground protection mounting assembly for a wind power plant according to claim 1, wherein: the lightning rod (6) is arranged at the top of the composite cabin shell (3), and an insulating coating is arranged on the outer side of the composite cabin shell (3).

4. A ground protection mounting assembly for a wind turbine generator set according to claim 1, wherein: the horizontal voltage-sharing net (10) is made of hot galvanized flat steel, the vertical grounding electrode (11) is made of galvanized steel pipes, the laying depth of the horizontal voltage-sharing net (10) is 0.8m away from the ground, and the grounding resistance value of the horizontal voltage-sharing net (10) is less than or equal to 4 ohms.

5. A ground protection mounting assembly for a wind power plant according to claim 1, wherein: support column (1) and ground connection mount (2) all adopt the steel to make, and ground connection post dish (9) are formed by galvanized steel pipe and the perpendicular welding of disc, and its bottom is connected through the bolt with ground.