Extra-high voltage high-adaptability double-shielding ascending flanged base shielding structure
By adopting a "highly adaptable" double-shielded ring structure in the transformer, the electric field distribution is improved, the standardization and modularization of the shape of transformers of different voltage levels are solved, production efficiency is improved and costs are reduced.
Patent Information
- Application Number
- CN202422305465.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-22
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-09-22
AI Technical Summary
Existing technologies make it difficult to standardize and modularize the shape of transformers of different voltage levels, resulting in low production efficiency and high costs.
The system adopts a highly adaptable double-shielded ring structure, which is connected to the transition flange through non-closed first and second shielded rings to improve the electric field distribution, prevent sharp-angle discharge, and is suitable for transformer leads of different voltage levels, thus realizing the standardization and modular design of the oil tank.
This has enabled the standardization and modularization of transformer shapes, improving production efficiency and reducing production costs.
Smart Images
Figure CN223513775U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer equipment technology, specifically relating to a high-voltage, highly adaptable double-shielded riser shielding structure. Background Technology
[0002] As my country's DC power transmission technology matures, the standardization and modularization of the appearance of large-capacity, high-voltage converter transformers has become an inevitable trend. Standardized and modular appearance can effectively reduce manufacturing costs and improve product competitiveness.
[0003] This application hereby proposes a standardized, modular shielding structure. Utility Model Content
[0004] The purpose of this utility model is to provide a simple and reasonably designed ultra-high voltage high adaptability double-shielded riser shielding structure to solve the above problems; to solve the problem of electric field distribution on the main structural components of transformer leads of different voltage levels; to achieve standardization and modularization of transformer appearance; to improve production efficiency; and to save costs.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] A high-adaptability double-shielded riser shielding structure for ultra-high voltage includes a first shielding ring and a second shielding ring. Both the first and second shielding rings are non-closed rings. The first shielding ring is disposed outside the second shielding ring. The first shielding ring is connected to the surface of a transition flange via a first mounting component. The second shielding ring is connected to the surface of the transition flange via a second mounting component. The first shielding ring is connected to a first grounding device, and the second shielding ring is connected to a second grounding device. The transition flange is fixed to the surface of the side wall of the oil tank.
[0007] As a further optimization of this utility model, both the first shielding ring and the second shielding ring are made of paper-wrapped copper rods, and the ends of both the first shielding ring and the second shielding ring are rounded.
[0008] As a further optimization of this utility model, the first shielding ring is grounded at one end through the first grounding device; the second shielding ring is grounded at one end through the second grounding device.
[0009] As a further optimization of this utility model, the closing notches of the first shielding ring and the second shielding ring are misaligned.
[0010] The beneficial effects of this utility model are as follows: This utility model adopts a "highly adaptable" and "double-ring" shielding ring structure for different voltage level risers. Two non-closed shielding rings are installed through transition flanges of different diameters to improve the electric field distribution, change the electrode shape, and prevent sharp-angle discharge. It meets the requirements of different voltage level lead wires and has high adaptability when used in standardized and modular oil tanks. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the installation structure of the low-end small-diameter riser of this utility model;
[0012] Figure 2 This is a schematic diagram of the high-end large-diameter lifting seat structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the overall installation structure of the double-ring shielding ring of this utility model;
[0014] Figure 4 This is a schematic diagram of the specific installation structure of the double-ring shielding ring of this utility model;
[0015] Figure 5 This is a structural schematic diagram of the mounting component of this utility model.
[0016] In the figure: 1, first shielding ring; 2, second shielding ring; 3, first grounding device; 4, second grounding device; 5, first mounting component; 51, fixing plate; 52, extrusion plate; 53, fixing plate; 54, mating groove; 55, rotating ball; 56, connecting block; 57, screwing block; 58, slot; 6, second mounting component; 7, tank side wall; 8, transition flange. Detailed Implementation
[0017] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0018] Example 1
[0019] refer to Figures 1 to 4The structure shown is a double-shielded riser structure for ultra-high voltage and high adaptability, comprising a first shielding ring 1 and a second shielding ring 2. Both the first shielding ring 1 and the second shielding ring 2 are non-closed rings. The first shielding ring 1 is disposed outside the second shielding ring 2. The first shielding ring 1 is connected to the surface of the transition flange 8 through a first mounting member 5. The second shielding ring 2 is connected to the surface of the transition flange 8 through a second mounting member 6. The first shielding ring 1 is connected to a first grounding device 3, and the second shielding ring 2 is connected to a second grounding device 4. The transition flange 8 is fixed to the surface of the tank side wall 7.
[0020] Both the first shielding ring 1 and the second shielding ring 2 are made of paper-wrapped copper rods, and the ends of both the first shielding ring 1 and the second shielding ring 2 are rounded.
[0021] The first shielding ring 1 is grounded at one end through the first grounding device 3; the second shielding ring 2 is grounded at one end through the second grounding device 4; the closed notches of the first shielding ring 1 and the second shielding ring 2 are misaligned.
[0022] The transition flange 8 is used for the transition connection of the riser seat. The shielding ring is installed on the inner side of the riser seat at the connection between the transition flange 8 and the side wall 7 of the oil tank through the mounting parts to shield the sharp corners and improve the local electric field. The transition flange 8 can be designed with different diameters according to different voltage levels to meet the installation requirements of the high and low end riser seats, and use the same oil tank to achieve standardization and modularization of oil tank design, improve production efficiency and save costs.
[0023] refer to Figure 1 , Figure 2 As shown in the diagram, the side walls of converter transformer tanks at different voltage levels can be made the same using transition flanges, allowing for the installation of both high- and low-end valve side sleeves on the same tank.
[0024] The structure of this application is not limited to the position of the transformer riser lead wire, but is also applicable to solving the problem of electric field distribution on other major structural components. It can realize the standardization and modularization of transformer shape, improve production efficiency, and save costs.
[0025] The riser for different voltage levels adopts a "highly adaptable" "double-ring" shielding structure. Two non-closed shielding rings are installed through transition flanges of different diameters to improve the electric field distribution, change the electrode shape, and prevent sharp-angle discharge. This meets the requirements of different voltage level lead wires and is used in standardized and modular oil tanks, demonstrating high adaptability.
[0026] The "highly adaptable double-shielded riser shielding ring" has a unique structure. The "double-ring" shielding ring solves the problem of electric field distribution on the main structural components of transformer leads of different voltage levels, realizes the standardization and modularization of transformer appearance, improves production efficiency, and saves costs.
[0027] Example 2
[0028] Based on the above embodiment 1, and referring to Figure 5 As shown in the structure, both the first mounting component 5 and the second mounting component 6 include a fixing plate 53. The fixing plate 53 is movably connected to a rotating ball 55. The rotating ball 55 is fixedly connected to a connecting block 56. The end of the connecting block 56 is connected to a screwing block 57. The surface of the screwing block 57 and the surface of the connecting block 56 form a groove 58. The groove 58 clamps the shielding ring.
[0029] The screw block 57 is threadedly connected to the connecting block 56. That is, one end of the screw block 57 is provided with a threaded rod, which is inserted into the connecting block 56. The distance between the screw block 57 and the end of the connecting block 56 can be adjusted by rotation, so as to facilitate the application of shielding rings of different sizes.
[0030] The fixing plate 53 has a mating groove 54, and the rotating ball 55 is disposed in the mating groove 54.
[0031] The surface of the fixing piece 53 is covered with an extrusion piece 52, which can press against the surface of the rotating ball 55. The surface of the extrusion piece 52 is covered with a fixing piece 51. The extrusion piece 52 is a rubber friction piece. By extruding the extrusion piece 52 against the rotating ball 55, the friction force of the rotating ball 55 is increased.
[0032] The extrusion sheet 52 is glued to the fixing sheet 51.
[0033] The mounting component has screw holes on its surface. The mounting component can be installed by screws, or short bolts can be used to tighten and fix the pressure plate 51 and the fixing plate 53, and then weld the whole assembly together.
[0034] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0038] Although 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. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
[0039] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A double-shielded riser shielding structure for ultra-high voltage and high adaptability, characterized in that, The system includes a first shielding ring (1) and a second shielding ring (2), both of which are non-closed rings. The first shielding ring (1) is located outside the second shielding ring (2). The first shielding ring (1) is connected to the surface of the transition flange (8) via a first mounting member (5), and the second shielding ring (2) is connected to the surface of the transition flange (8) via a second mounting member (6). The first shielding ring (1) is connected to a first grounding device (3), and the second shielding ring (2) is connected to a second grounding device (4). The transition flange (8) is fixed to the surface of the side wall (7) of the oil tank.
2. The UHV high-adaptability double-shielded riser shielding structure according to claim 1, characterized in that: The first shielding ring (1) is grounded at one end through the first grounding device (3); the second shielding ring (2) is grounded at one end through the second grounding device (4).
3. The UHV high-adaptability double-shielded riser shielding structure according to claim 2, characterized in that: The closing gaps of the first shielding ring (1) and the second shielding ring (2) are misaligned.