A device for uniform discharge of valve plates of lightning protection voltage limiter

Abstract

The utility model discloses a device for uniform discharge of valve plates of a lightning protection voltage limiter, comprising an aluminum core material (1), wherein the aluminum core material (1) is arranged between valve plates (9) of the lightning protection voltage limiter, wherein the aluminum core material (1) and the valve plates (9) are both annular structures, wherein the outer diameter of the aluminum core material (1) is not greater than the outer diameter of the valve plates (9), and the inner diameter of the aluminum core material (1) is not less than the inner diameter of the valve plates (9), and a plurality of valve plates (9) form a valve body, wherein the valve body is sleeved on a valve core (5). The utility model arranges an aluminum core material (1) between the valve plates (9) of the lightning protection voltage limiter, and the aluminum core material (1) can ensure that the electric field is uniformly distributed on the valve plates, thereby avoiding uneven discharge caused by excessive local electric field and causing damage to the lightning protection voltage limiter.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning protection voltage limiters, in particular to a device for uniform discharge of valve plates of lightning protection voltage limiters. Background Art

[0002] Lightning is an important factor that troubles power transmission and causes line tripping and flashover.

[0003] Lightning disasters have an increasing impact on the reliability and sustainability of power supply. At the same time, economic development is increasingly dependent on electricity. The reliability and sustainability of transmission lines have become one of the important projects in the safety work of the power supply department. Installing lightning arresters on transmission lines can effectively ensure the safety of the lines. Lightning arresters, also known as surge protectors or lightning arresters, are an indispensable part of the power system. Lightning arresters can be used to protect various parts of the power system, including power stations, substations, transmission lines and distribution networks. However, lightning in nature can damage lightning arresters, reduce their stability, increase their maintenance costs, and reduce their service life. Utility Model Content

[0004] The utility model aims to provide a device for uniform discharge of valve plates of lightning arrester voltage limiters, so as to solve the technical problem of how to avoid damage to the lightning arrester voltage limiters caused by uneven discharge due to excessive local electric field.

[0005] The utility model is realized by adopting the following technical scheme: a device for uniform discharge of valve plates of lightning protection voltage limiter, comprising an aluminum core material, wherein the aluminum core material is arranged between the valve plates of the lightning protection voltage limiter, the aluminum core material and the valve plates are both annular structures, wherein the outer diameter of the aluminum core material is not greater than the outer diameter of the valve plates, the inner diameter of the aluminum core material is not less than the inner diameter of the valve plates, a plurality of valve plates form a valve body, and the valve body is sleeved on the valve core.

[0006] Furthermore, the aluminum core material is aluminum foil, and the thickness of the aluminum foil is 0.05 mm to 0.2 mm.

[0007] Furthermore, an upper mounting piece is provided at the uppermost end of the valve core, and a wire pressing plate is provided on the upper mounting piece; a lower mounting piece is provided at the lowermost end of the valve core, and a power frequency cutter is provided on the lower mounting piece.

[0008] Furthermore, an upper pole piece is arranged at the uppermost end of the valve body, and a lower pole piece is arranged at the lowermost end, and an inner sheath is arranged between the upper pole piece and the lower pole piece, and the inner sheath wraps the valve body.

[0009] Furthermore, an outer sheath is arranged outside the inner sheath, and a large umbrella skirt and a plurality of small umbrella skirts are arranged on the outer sheath.

[0010] Furthermore, a valve core outer sheath is provided at the lower end of the valve core, the valve core outer sheath is integrally formed with the outer sheath, and a plurality of small umbrella skirts are provided on the valve core outer sheath, wherein the diameter of the small umbrella skirts is smaller than the diameter of the large umbrella skirt.

[0011] Furthermore, a pressure equalizing ring is provided between the valve core outer sheath and the outer sheath, and the pressure equalizing ring is connected to the lower pole piece.

[0012] Furthermore, a sealing ring is provided in the lower pole piece, and the sealing ring is sleeved on the valve core.

[0013] The beneficial effect of the utility model is that an aluminum core material is arranged between the valve plates of the lightning arrester voltage limiter. The aluminum core material can ensure that the electric field is evenly distributed on the valve plates, thereby avoiding uneven discharge caused by excessive local electric field and causing damage to the lightning arrester voltage limiter. The reliability of the lightning arrester voltage limiter can be improved, power outages and equipment failures caused by lightning can be reduced, and the maintenance cost of the power system can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation of the utility model;

[0017] In the figure, 1-aluminum core material, 2-wire pressing plate, 3-upper mounting part, 4-inner sheath, 5-valve core, 6-upper pole piece, 7-outer sheath, 8-large umbrella skirt, 9-valve piece, 10-small umbrella skirt, 11-lower pole piece, 12-equalizing ring, 13-sealing ring, 14-lower mounting part, 15-power frequency cutter, 16-valve core outer sheath. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] See also Figure 1 , Figure 2 A device for uniform discharge of valve plates of lightning protection voltage limiter, comprising an aluminum core material 1, wherein the aluminum core material 1 is arranged between valve plates 9 of the lightning protection voltage limiter, wherein the aluminum core material 1 and the valve plates 9 are both annular structures, wherein the outer diameter of the aluminum core material 1 is the same as the outer diameter of the valve plates 9, and the inner diameter of the aluminum core material 1 is the same as the inner diameter of the valve plates 9, and a plurality of valve plates 9 form a valve body, wherein the valve body is sleeved on a valve core 5, and specifically, the aluminum core material 1 is an aluminum foil, and the thickness of the aluminum foil is 0.05 mm,

[0022] It is conceivable that in some embodiments, the outer diameter of the aluminum core material 1 can be set to be smaller than the outer diameter of the valve plate 9, and the inner diameter of the aluminum core material 1 can be set to be smaller than the inner diameter of the valve plate 9, according to actual conditions. In addition, the thickness of the aluminum foil can also be selected between 0.05 mm and 1 mm. As long as the structure of the valve plate 9 and the aluminum core material 1 is adjusted to ensure that the electric field is evenly distributed on the valve plate 9, uneven discharge caused by excessive local electric field and damage to the lightning arrester can be avoided.

[0023] In this embodiment, an upper mounting part 3 is provided at the uppermost end of the valve core 5, and a wire pressing plate 2 is provided on the upper mounting part 3; a lower mounting part 14 is provided at the lowermost end of the valve core 5, and a power frequency cutter 15 is provided on the lower mounting part 14. The power frequency cutter 15 is used to discharge the continuously occurring lightning energy to continue to ensure the safe operation of the power line.

[0024] In this embodiment, the upper pole piece 6 is provided at the uppermost end of the valve body, and the lower pole piece 11 is provided at the lowermost end. An inner sheath 4 is provided between the upper pole piece 6 and the lower pole piece 11. The inner sheath 4 wraps the valve body inside. An outer sheath 7 is also provided outside the inner sheath 4. A large umbrella skirt 8 and a plurality of small umbrella skirts 10 are provided on the outer sheath 7. Further, a valve core outer sheath 16 is also provided at the lower end of the valve core 5. The valve core outer sheath 16 is integrally formed with the outer sheath 7, and a plurality of small umbrella skirts 10 are also provided on the valve core outer sheath 16. The diameter of the small umbrella skirt 10 is smaller than the diameter of the large umbrella skirt 8.

[0025] In this embodiment, a pressure equalizing ring 12 is provided between the valve core outer sheath 16 and the outer sheath 7 , and the pressure equalizing ring 12 is connected to the lower pole piece 11 . A sealing ring 13 is provided inside the lower pole piece 11 , and the sealing ring 13 is sleeved on the valve core 5 .

[0026] The utility model is very important to improve the safety, reliability and economy of the power system, which is specifically reflected in the following aspects:

[0027] 1. Improve reliability: Uniform discharge helps improve the reliability of the lightning arrester and ensures that it can effectively protect the equipment when a lightning surge occurs. 2. Extend service life: Uniform discharge can reduce thermal and mechanical stress on the valve plate, thereby extending the service life of the valve plate and the entire lightning arrester. 3. Reduce maintenance costs: The lightning arrester reduces maintenance costs due to the extended service life of the valve plate, and the frequency of maintenance and replacement is reduced. 4. Improve protection effect: Uniform discharge means that the lightning arrester can provide a consistent level of protection when facing different types of surges. 5. Reduce failure rate: Due to the uniform distribution of the electric field, the possibility of local overheating or overvoltage is reduced, thereby reducing the failure rate. 6. Improve thermal management: Uniform discharge helps to dissipate heat more effectively, avoid local overheating, and improve overall thermal management. 7. Enhance system stability: Uniform discharge helps maintain the stability of the power system, especially under high load or extreme weather conditions. 8. Improve safety: Uniform discharge reduces the risk of fire caused by surges and improves the safety of power systems and equipment. 9. Optimize energy absorption: Uniform discharge helps to absorb and disperse the energy of lightning surges more effectively, reducing the impact on equipment. 10. Reduce electromagnetic interference: Uniform discharge reduces the generation of electromagnetic interference (EMI), helping to protect sensitive electronic equipment. 11. Improve response speed: Uniform discharge can improve the response speed of the lightning arrester, enabling it to respond to surge events more quickly. 12. Reduce equipment damage: Uniform discharge reduces damage to equipment caused by surges and protects the integrity of the power system. 13. Improve energy efficiency: Due to reduced overheating and energy loss, uniform discharge helps improve the energy efficiency of the entire power system. 14. Enhance environmental adaptability: The design of uniform discharge enables the lightning arrester to adapt to various environmental conditions, including extreme temperatures and humidity.

[0028] It should be noted that the terms "connection" and "setting" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "connection" and "setting" may explicitly or implicitly include one or more of the features. Moreover, the terms "connection", "setting" and the like are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. And for the aforementioned embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited to the described order of actions, because according to the present application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the present application.

[0029] The above embodiments describe the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the changes and modifications made by the technicians in this field shall be within the scope of protection of the claims attached to the utility model.

Claims

1. A device for uniform discharge of lightning protection voltage limiter valve plate, characterized in that: The invention comprises an aluminum core material (1), wherein the aluminum core material (1) is arranged between valve plates (9) of a lightning protection voltage limiter, wherein the aluminum core material (1) and the valve plates (9) are both annular structures, wherein the outer diameter of the aluminum core material (1) is not greater than the outer diameter of the valve plates (9), and the inner diameter of the aluminum core material (1) is not less than the inner diameter of the valve plates (9), and a plurality of valve plates (9) form a valve body, and the valve body is sleeved on a valve core (5).

2. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 1, characterized in that: The aluminum core material (1) is aluminum foil, and the thickness of the aluminum foil is 0.05 mm to 0.2 mm.

3. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 1, characterized in that: An upper mounting part (3) is arranged at the uppermost end of the valve core (5), and a wire pressing plate (2) is arranged on the upper mounting part (3); a lower mounting part (14) is arranged at the lowermost end of the valve core (5), and a power frequency cutter (15) is arranged on the lower mounting part (14).

4. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 3, characterized in that: An upper pole piece (6) is arranged at the uppermost end of the valve body, and a lower pole piece (11) is arranged at the lowermost end; an inner sheath (4) is arranged between the upper pole piece (6) and the lower pole piece (11), and the inner sheath (4) wraps the valve body.

5. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 4, characterized in that: An outer sheath (7) is further provided on the outer side of the inner sheath (4), and a large umbrella skirt (8) and a plurality of small umbrella skirts (10) are provided on the outer sheath (7).

6. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 5, characterized in that: A valve core outer sheath (16) is also provided at the lower end of the valve core (5), the valve core outer sheath (16) is integrally formed with the outer sheath (7), and a plurality of small umbrella skirts (10) are also provided on the valve core outer sheath (16), wherein the diameter of the small umbrella skirts (10) is smaller than the diameter of the large umbrella skirt (8).

7. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 6, characterized in that: A pressure equalizing ring (12) is also provided between the valve core outer sheath (16) and the outer sheath (7), and the pressure equalizing ring (12) is connected to the lower pole piece (11).

8. A device for uniform discharge of valve plates of lightning protection voltage limiter as claimed in claim 7, characterized in that: A sealing ring (13) is also provided in the lower pole piece (11), and the sealing ring (13) is sleeved on the valve core (5).

Images