Wind power solid-sealed polar pole

Abstract

The utility model relates to the technical field of solid-sealed polar poles, and discloses a wind power solid-sealed polar pole which comprises a solid-sealed polar pole body, an epoxy resin insulating layer is arranged on the periphery of the solid-sealed polar pole body, and a wire inlet conductor is arranged at the position, close to the top, of an inner cavity of the epoxy resin insulating layer. A wire outlet conductor is arranged at the position, close to the middle, of one side of the epoxy resin insulating layer, a vacuum arc-extinguishing chamber is arranged in an inner cavity of the solid-sealed polar pole body, a bolt is arranged in the inner cavity of the solid-sealed polar pole body, the periphery of the bolt is movably sleeved with a gasket, and the inlet end and the outlet end of a high-voltage loop are located on the two sides of the solid-sealed polar pole body, so that connection of the high-voltage loop is facilitated; and secondly, relative miniaturization of the switch is realized by utilizing the spaces on the two sides of the solid-sealed polar pole. According to the miniaturized vacuum arc-extinguishing chamber, the requirement of creepage distance is met and the vacuum arc-extinguishing chamber is not influenced by external environment conditions through the coated epoxy resin layer, the miniaturization of the product and the simplification of parts are achieved, and the product is light in weight and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-sealed pole columns, in particular to a solid-sealed pole column for wind power generation. Background Technique

[0002] With the increasing prominence of energy and environmental problems, countries around the world are turning more attention to renewable energy. Among them, wind energy, as an important category of renewable energy due to its own advantages, is one of the oldest and most important energy sources on the earth, with huge reserves, being renewable, widely distributed, and pollution-free. It has become a clean energy widely welcomed globally, and wind power generation has become the most scalable renewable energy with development conditions and commercial development prospects at present.

[0003] Compared with thermal power generation, for a wind power installation with a single-unit capacity of 1 MW, compared with a thermal power installation of the same capacity, it can reduce carbon dioxide emissions by 2,000 tons, sulfur dioxide emissions by 10 tons, and nitrogen dioxide emissions by 6 tons per year, and its environmental protection effect is remarkable.

[0004] Wind power generation has the characteristics of wide distribution and unstable power generation compared with traditional thermal power and hydropower. The stepped-up centralized transmission and grid connection of the electricity generated by wind power require the design of special switches to meet its special requirements.

[0005] This solid-sealed pole column meets the requirements of the wind power generation switch and the requirements of the insulation performance of the entire circuit to the ground and between phases.

[0006] Therefore, we propose a solid-sealed pole column for wind power generation to solve the problems raised above. Content of the Utility Model

[0007] The purpose of the utility model is to provide a solid-sealed pole column for wind power generation to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A solid-sealed pole column for wind power generation, including a solid-sealed pole column main body, an epoxy resin insulation layer is arranged on the outer periphery of the solid-sealed pole column main body, an incoming line conductor is arranged near the top in the inner cavity of the epoxy resin insulation layer, an outgoing line conductor is arranged near the middle position on one side of the epoxy resin insulation layer, a vacuum arc extinguishing chamber is arranged in the inner cavity of the solid-sealed pole column main body, a bolt is arranged in the inner cavity of the solid-sealed pole column main body, a gasket is movably sleeved on the outer periphery of the bolt, a spring washer is arranged at the bottom of the gasket, and the bottom end of the bolt movably penetrates through the inner cavity of the spring washer.

[0009] Preferably, a plurality of mounting nuts are installed near the bottom in the inner cavity of the solid-sealed pole column main body, and the plurality of mounting nuts are arranged in a circular array centered on the bottom of the solid-sealed pole column main body.

[0010] Preferably, the rated voltage of the solid-sealed pole column main body is 40.5 kV, and the current value is 1,250 A.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The two ends of the high-voltage circuit inlet and outlet are located on both sides of the solid-sealed pole column. Firstly, it is convenient for the connection of the high-voltage circuit; secondly, the space on both sides of the solid-sealed pole column is utilized to achieve the relative miniaturization of the switch. The miniaturized vacuum interrupter meets the requirements of creepage distance and is not affected by the external environmental conditions through the coated epoxy resin layer. The miniaturization of the product and the simplification of components are achieved, and the product is light in weight and convenient for installation.

[0013] 2. The conductive circuit includes an incoming line conductor, a vacuum interrupter, a flexible connection (installed later), and an outgoing line conductor, forming a complete switching-on and -off loop. The incoming line conductor is connected to the incoming line bushing, and the outgoing line conductor is connected to the outgoing line bushing, and then connected to the upper-level substation and the user end.

[0014] 3. When assembling the solid-sealed pole column, a flexible connection and an insulating pull rod are installed inside.

[0015] 4. The installation and fixation of the solid-sealed pole column are composed of 6 nuts. After being assembled inside, it is fixed on the installation surface of the switch cabinet. Due to the use of the epoxy resin automatic pressure gel molding process (APG), the overall mechanical properties are significantly improved. The dimensional accuracy of the product is improved through the accurate dimensional control of the mold, which effectively improves the compatibility of the conductive circuit, reduces the contact resistance, and improves the interchangeability. In the whole scheme, the switch cabinet has a small depth (switch miniaturization), good interchangeability, convenient installation, and high reliability.

[0016] 5. During production, the connection torque between the incoming line conductor and the vacuum interrupter is controlled. The vacuum interrupter is perpendicular to the installation surface as a whole, ensuring a low contact resistance of the conductive circuit, reducing the thermal aging of the insulator, and greatly improving the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic cross-sectional view of the utility model;

[0018] Figure 2 is a schematic left side view of the utility model;

[0019] Figure 3 is a schematic right side view of the utility model;

[0020] Figure 4 is a schematic bottom view of the utility model.

[0021] In the figure: 1. Epoxy resin insulation layer; 2. Incoming line conductor; 3. Bolt; 4. Gasket; 5. Spring washer; 6. Vacuum interrupter; 7. Outgoing line conductor; 8. Mounting nut; 9. Main body of the solid-sealed pole column. DETAILED DESCRIPTION OF THE INVENTION

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The wind power solid-sealed pole column includes a solid-sealed pole column main body 9. An epoxy resin insulating layer 1 is provided on the outer periphery of the solid-sealed pole column main body 9. An incoming line conductor 2 is provided near the top in the inner cavity of the epoxy resin insulating layer 1. An outgoing line conductor 7 is provided near the middle position on one side of the epoxy resin insulating layer 1. A vacuum interrupter 6 is provided in the inner cavity of the solid-sealed pole column main body 9. A bolt 3 is provided in the inner cavity of the solid-sealed pole column main body 9. A gasket 4 is movably sleeved on the outer periphery of the bolt 3. A spring washer 5 is provided at the bottom of the gasket 4, and the bottom end of the bolt 3 movably penetrates through the inner cavity of the spring washer 5. The epoxy resin insulating layer 1 plays a role in fixing and supporting the high-voltage conductor, surface insulation and isolation insulation.

[0024] A plurality of mounting nuts 8 are installed near the bottom in the inner cavity of the solid-sealed pole column main body 9, and the plurality of mounting nuts 8 are arranged in a circular array with the bottom of the solid-sealed pole column main body 9 as the center.

[0025] The rated voltage of the solid-sealed pole column main body 9 is 40.5 kV, and the current value is 1250 A.

[0026] Working principle: The incoming line conductor 2, the vacuum interrupter 6, the flexible connection (installed later), and the lower outgoing line seat form the entire closing and opening loop of the switch. The epoxy resin insulating layer 1 provides fixed support, insulation to the ground and surface insulation for the conductive loop, realizing the miniaturization of the switch.

[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A wind power sealed pole, comprising a sealed pole body (9), characterized in that: The outer periphery of the sealed pole body (9) is provided with an epoxy resin insulation layer (1), an incoming conductor (2) is provided in the inner cavity of the epoxy resin insulation layer (1) near the top, an outgoing conductor (7) is provided in the inner cavity of the epoxy resin insulation layer (1) near the middle, a vacuum arc extinguishing chamber (6) is provided in the inner cavity of the sealed pole body (9), a bolt (3) is provided in the inner cavity of the sealed pole body (9), a gasket (4) is movably sleeved on the outer periphery of the bolt (3), a spring washer (5) is provided at the bottom of the gasket (4), and the bottom end of the bolt (3) movably penetrates the inner cavity of the spring washer (5), and a plurality of mounting nuts (8) are installed near the bottom of the inner cavity of the sealed pole body (9), and the plurality of mounting nuts (8) are arranged in a circular array with the bottom of the sealed pole body (9) as the center.

2. The wind power sealed pole according to claim 1, characterized in that: The rated voltage of the sealed pole body (9) is 40.5 kV, and the current value is 1250 A.

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