A 500kv main transformer core noise reduction auxiliary tool

Abstract

The utility model discloses a 500KV main transformer iron core noise reduction auxiliary tool belongs to transformer iron core noise reduction technical field, this 500KV main transformer iron core noise reduction auxiliary tool, transformer iron core subassembly sets up inside transformer body, the bottom of transformer iron core subassembly is installed to the noise reduction shell, and the top limiting installation of transformer iron core subassembly has the supplementary noise reduction cover board, one end of supplementary noise reduction subassembly sets up inside the noise reduction shell, and the bottom transmission connection of transformer iron core subassembly with supplementary noise reduction subassembly's another end, side first damping spring, side second damping spring and end damping spring, can effectively buffer and absorb the vibration energy that transformer iron core subassembly generates, reduce vibration transmission to reduce the generation and spread of noise. Meanwhile, the multilayer composite board and sound absorbing cotton in the supplementary noise reduction cover board can further absorb and block the noise, improve the noise reduction effect, and the supplementary noise reduction cover board is directly installed on the top of the transformer iron core subassembly and is not installed with the transformer body.

Description

Technical Field

[0001] This utility model relates to the field of transformer core noise reduction, specifically to an auxiliary tool for noise reduction of 500KV main transformer core. Background Technology

[0002] In power systems, the 500kV main transformer is one of the key pieces of equipment, and its operational stability and reliability are crucial to the safety of the power grid. However, the 500kV main transformer core generates significant noise during operation. This is mainly due to the magnetostriction of the transformer core under the influence of an alternating magnetic field, which causes the core to vibrate and generate noise.

[0003] These noises not only cause serious noise pollution to the surrounding environment, affecting the quality of life of nearby residents and causing dissatisfaction and complaints, but also have adverse effects on the health of workers who are in this environment for extended periods. Furthermore, excessive noise may also be a sign of potential transformer malfunctions; if not addressed promptly, it could affect the normal operation and lifespan of the transformer. Currently, although some methods and tools exist for transformer noise reduction, their effectiveness is not ideal for high-voltage, high-capacity transformers like the 500kV main transformer core. Moreover, some noise reduction tools suffer from complex structures, difficult installation and maintenance, and high costs. Therefore, inventing an auxiliary noise reduction tool for the 500kV main transformer core to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a noise reduction auxiliary tool for 500KV main transformer cores, aiming to improve the problem of unsatisfactory noise reduction effect on high-voltage, large-capacity transformers.

[0005] This utility model is implemented as follows: a noise reduction auxiliary tool for 500KV main transformer core, comprising...

[0006] The transformer body includes a transformer core assembly, which is disposed inside the transformer body.

[0007] A noise reduction mechanism, comprising a noise reduction housing and an auxiliary noise reduction component, wherein the noise reduction housing includes a noise reduction outer shell, the noise reduction outer shell is installed at the bottom of the transformer core assembly, and an auxiliary noise reduction cover is installed at the top limit of the transformer core assembly;

[0008] One end of the auxiliary noise reduction component is disposed inside the noise reduction housing, and the other end of the auxiliary noise reduction component is connected to the bottom of the transformer core assembly.

[0009] In a preferred embodiment of this utility model, the transformer core assembly is the core of a 500 kV transformer.

[0010] In a preferred embodiment of this utility model, the noise reduction housing further includes a fixed base, the top of which is embedded in the bottom of the transformer core assembly, the fixed base being disposed inside the noise reduction housing, and a fixed cover plate being fixedly connected to the top of the noise reduction housing.

[0011] In a preferred embodiment of this utility model, connecting plates are fixedly connected to both sides of the core of the transformer core assembly, and the top of the connecting plates is fixedly installed on both sides of the top of the fixed base.

[0012] In a preferred embodiment of this utility model, an auxiliary noise reduction cover is fitted to the top of the transformer core assembly. The auxiliary noise reduction cover is hollow inside and contains multiple layers of composite panels.

[0013] In a preferred embodiment of this utility model, the hollow portion inside the auxiliary noise reduction cover is filled with sound-absorbing cotton.

[0014] In a preferred embodiment of this utility model, the auxiliary noise reduction component includes a first side damping spring and a second side damping spring. The top of the first side damping spring and the second side damping spring are respectively hinged to an upper hinge block, which is fixedly installed on both sides of the fixed base. The bottom of the first side damping spring and the second side damping spring are hinged to a lower hinge block, which is fixedly installed on both sides of the inner wall of the noise reduction housing.

[0015] In a preferred embodiment of this utility model, the auxiliary noise reduction component further includes an end damping spring, with an upper hinge block connected to the top of the end damping spring and a lower hinge block hinged to the bottom of the end damping spring. The lower hinge block is fixedly installed on the inner walls of both ends of the first side damping spring.

[0016] In a preferred embodiment of this utility model, multiple sets of the first and second side damping springs are provided, and each set of the first and second side damping springs is arranged in an inverted V-shape. Multiple end damping springs are provided, and the multiple end damping springs are also arranged in an inverted V-shape at both ends of the fixed base.

[0017] In a preferred embodiment of this utility model, the first side damping spring, the second side damping spring, and the end damping spring are all inclined, with one end of the first side damping spring, the second side damping spring, and the end damping spring inclined upward near the fixed base, and the other end inclined downward.

[0018] The beneficial effects of this utility model are as follows: The 500KV main transformer core noise reduction auxiliary tool obtained by the above design can effectively buffer and absorb the vibration energy generated by the transformer core assembly by setting up a noise reduction mechanism and utilizing the first side damping spring, the second side damping spring, and the end damping spring in the auxiliary noise reduction component, thereby reducing the vibration transmission and thus reducing the generation and propagation of noise. At the same time, the multi-layer composite board and sound-absorbing cotton inside the auxiliary noise reduction cover can further absorb and block noise, improving the noise reduction effect.

[0019] The fixed base of the noise reduction housing is embedded in the bottom of the transformer core assembly. The connecting plate fixes the transformer core assembly to the fixed base, making the whole structure more stable and ensuring the reliability of the noise reduction tool during long-term operation.

[0020] The springs in the auxiliary noise reduction component are tilted in an inverted V-shape, which can buffer and absorb the vibration of the transformer core assembly in multiple directions, adapt to vibration in different directions, and improve the adaptability and versatility of the noise reduction tool. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the internal structure provided for an embodiment of this utility model;

[0024] Figure 3 A schematic diagram of the transformer core assembly structure provided for an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the noise reduction mechanism provided for an embodiment of this utility model.

[0026] In the diagram: 100 - Transformer body; 110 - Transformer core assembly; 200 - Noise reduction mechanism; 210 - Noise reduction housing; 211 - Noise reduction outer shell; 212 - Fixed cover plate; 213 - Auxiliary noise reduction cover plate; 214 - Connecting upright plate; 215 - Fixed base; 220 - Auxiliary noise reduction assembly; 221 - First side damping spring; 222 - Second side damping spring; 223 - Upper hinge block; 224 - Lower hinge block; 225 - End damping spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a noise reduction auxiliary tool for 500KV main transformer cores, including...

[0029] The transformer body 100 includes a transformer core assembly 110, which is disposed inside the transformer body 100. A noise reduction mechanism 200 includes a noise reduction housing 210 and an auxiliary noise reduction component 220. The noise reduction housing 210 includes a noise reduction outer shell 211, which is installed at the bottom of the transformer core assembly 110. An auxiliary noise reduction cover plate 213 is installed at the top of the transformer core assembly 110. One end of the auxiliary noise reduction component 220 is disposed inside the noise reduction outer shell 211, and the other end of the auxiliary noise reduction component 220 is connected to the bottom of the transformer core assembly 110. By setting the noise reduction mechanism 200, and utilizing the first side damping spring 221, the second side damping spring 222, and the end damping spring 225 in the auxiliary noise reduction component 220, the vibration energy generated by the transformer core assembly 110 can be effectively buffered and absorbed, reducing vibration transmission and thus reducing noise generation and propagation. Meanwhile, the multi-layer composite board and sound-absorbing cotton inside the auxiliary noise reduction cover 213 can further absorb and block noise, improving the noise reduction effect. The auxiliary noise reduction cover 213 is directly installed on the top of the transformer core assembly 110 and is not installed with the transformer body 100.

[0030] Please see Figure 3 and Figure 4 The transformer core assembly 110 is the core of a 500 kV transformer. The noise reduction housing 210 also includes a fixing base 215, the top of which is embedded in the bottom of the transformer core assembly 110. The fixing base 215 is located inside the noise reduction housing 211, and a fixing cover plate 212 is fixedly connected to the top of the noise reduction housing 211.

[0031] Connecting plates 214 are fixedly connected to both sides of the transformer core assembly 110. The tops of the connecting plates 214 are fixedly installed on both sides of the top of the fixed base 215. The connecting plates 214 are used to fix the transformer core assembly 110 to the fixed base 215, and are installed by bolts or other means. An auxiliary noise reduction cover 213 is fitted to the top of the transformer core assembly 110. The auxiliary noise reduction cover 213 is hollow inside and contains multiple layers of composite board. The hollow part inside the auxiliary noise reduction cover 213 is filled with sound-absorbing cotton to reduce noise diffusion.

[0032] The auxiliary noise reduction component 220 includes a first side damping spring 221 and a second side damping spring 222. The tops of the first side damping spring 221 and the second side damping spring 222 are respectively hinged to upper hinge blocks 223. The upper hinge blocks 223 are fixedly installed on both sides of the fixed base 215. The bottoms of the first side damping spring 221 and the second side damping spring 222 are hinged to lower hinge blocks 224. The lower hinge blocks 224 are respectively fixedly installed on both sides of the inner wall of the noise reduction housing 211. The bottom of the fixed base 215 is 0.5-10cm away from the bottom of the inner wall of the noise reduction housing 211. The auxiliary noise reduction component 220 also includes an end damping spring 225. The top of the end damping spring 225 is connected to an upper hinge block 223, and the bottom of the end damping spring 225 is hinged to a lower hinge block 224. The lower hinge block 224 is fixedly installed on the inner walls of both ends of the side first damping spring 221. The upper hinge block 223 and the lower hinge block 224 are used to allow the end damping spring 225, the side first damping spring 221 and the side second damping spring 222 to move in a horizontal position to cooperate with the end damping spring 225, the side first damping spring 221 and the side second damping spring 222 for vibration reduction and noise reduction.

[0033] Multiple sets of side first damping springs 221 and side second damping springs 222 are provided, with each set of side first damping springs 221 and side second damping springs 222 arranged in an inverted V-shape. Multiple end damping springs 225 are also provided, with multiple end damping springs 225 arranged in an inverted V-shape at both ends of the fixed base 215. The side first damping springs 221, side second damping springs 222, and end damping springs 225 are all inclined, with one end of the side first damping springs 221, side second damping springs 222, and end damping springs 225 inclined upwards and the other end inclined downwards, so that the end damping springs 225, side first damping springs 221, and side second damping springs 222 can better provide support and reduce vibration and noise.

[0034] Working principle: When the 500KV main transformer core (i.e., transformer core assembly 110) vibrates due to the alternating magnetic field during operation, the vibration is transmitted to the fixed base 215 through the transformer core assembly 110.

[0035] The upper hinge blocks 223 on both sides of the fixed base 215 transmit vibrations to the first side damping spring 221 and the second side damping spring 222. Since the first side damping spring 221 and the second side damping spring 222 are inclined in an inverted V-shape, they can buffer and absorb vibrations in both the horizontal and vertical directions. When the fixed base 215 vibrates, the springs undergo elastic deformation, converting the vibration energy into the elastic potential energy of the springs, thereby reducing the transmission of vibrations.

[0036] Meanwhile, the end damping springs 225 at both ends of the fixed base 215 also play a similar role, further buffering and absorbing vibrations. The end damping springs 225 are also inclined in an inverted V-shape, which can better adapt to vibrations in different directions.

[0037] In addition, the auxiliary noise reduction cover 213 on top of the transformer core assembly 110 also plays a role in noise reduction. The multi-layer composite board and sound-absorbing cotton inside the auxiliary noise reduction cover 213 can absorb and block the noise propagating upward from the transformer core assembly 110, reducing the impact of noise on the surrounding environment.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A noise reduction auxiliary tool for 500kV main transformer core, characterized in that, include The transformer body includes a transformer core assembly, which is disposed inside the transformer body. A noise reduction mechanism, comprising a noise reduction housing and an auxiliary noise reduction component, wherein the noise reduction housing includes a noise reduction outer shell, the noise reduction outer shell is installed at the bottom of the transformer core assembly, and an auxiliary noise reduction cover is installed at the top limit of the transformer core assembly; One end of the auxiliary noise reduction component is disposed inside the noise reduction housing, and the other end of the auxiliary noise reduction component is connected to the bottom of the transformer core assembly.

2. The 500KV main transformer core noise reduction auxiliary tool as described in claim 1, characterized in that: The transformer core assembly is the core of a 500 kV transformer.

3. The 500kV main transformer core noise reduction auxiliary tool as described in claim 1, characterized in that: The noise reduction housing also includes a fixed base, the top of which is embedded in the bottom of the transformer core assembly. The fixed base is located inside the noise reduction housing, and a fixed cover plate is fixedly connected to the top of the noise reduction housing.

4. The 500kV main transformer core noise reduction auxiliary tool as described in claim 3, characterized in that: Connecting plates are fixedly connected to both sides of the core of the transformer core assembly, and the top of the connecting plates is fixedly installed on both sides of the top of the fixed base.

5. The 500kV main transformer core noise reduction auxiliary tool as described in claim 3, characterized in that: The top of the transformer core assembly is fitted with an auxiliary noise reduction cover plate, which is hollow inside and contains multiple layers of composite panels.

6. The 500kV main transformer core noise reduction auxiliary tool as described in claim 5, characterized in that: The hollow part inside the auxiliary noise reduction cover is filled with sound-absorbing cotton.

7. The 500kV main transformer core noise reduction auxiliary tool as described in claim 3, characterized in that: The auxiliary noise reduction component includes a first side damping spring and a second side damping spring. The top of the first side damping spring and the second side damping spring are respectively hinged to an upper hinge block, which is fixedly installed on both sides of the fixed base. The bottom of the first side damping spring and the second side damping spring are hinged to a lower hinge block, which is fixedly installed on both sides of the inner wall of the noise reduction housing.

8. The 500kV main transformer core noise reduction auxiliary tool as described in claim 7, characterized in that: The auxiliary noise reduction component also includes an end damping spring, with an upper hinge block at the top of the end damping spring and a lower hinge block at the bottom of the end damping spring. The lower hinge block is fixedly installed on the inner walls of both ends of the first side damping spring.

9. The 500kV main transformer core noise reduction auxiliary tool as described in claim 8, characterized in that: Multiple sets of the first and second side damping springs are provided, and each set of the first and second side damping springs is arranged in an inverted V-shape. Multiple end damping springs are provided, and the multiple end damping springs are also arranged in an inverted V-shape at both ends of the fixed base.

10. The 500kV main transformer core noise reduction auxiliary tool as described in claim 9, characterized in that: The first side damping spring, the second side damping spring, and the end damping spring are all inclined, with one end of the first side damping spring, the second side damping spring, and the end damping spring inclined upwards near the fixed base, and the other end inclined downwards.

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