A new type of lifting seat capable of improving field intensity

Abstract

The utility model discloses a novel can improve the ascending seat of field intensity relates to transformer ascending seat technical field, including support sleeve, the top fixed mounting of support sleeve has the connecting terminal subassembly, the bottom fixed connection of support sleeve has spliced transition pipe, the bottom fixed connection of spliced transition pipe has tail pipe, the tail end fixed connection of tail pipe has flange, the utility model discloses the insulation support of support sleeve, the smooth transition design of spliced transition pipe, combine the even arrangement of connecting sleeve and the fixed limit of pipe clamp, not only realized the stable support of ascending seat, reliable conduction and sealed protection, more effectively improved internal electric field distribution, avoided the electric field distortion caused by structural mutation and lead concentration, reduced the insulation aging and partial discharge risk caused by partial field intensity too high, improved the safety and service life of ascending seat under high pressure environment operation.

Description

Technical Field

[0001] This utility model relates to the field of transformer riser technology, and in particular to a novel riser that can improve field strength. Background Technology

[0002] As a key component of high-voltage equipment such as power transformers, riser stands are mainly used for leading out leads, installing bushings and current transformers. The uniformity of field strength distribution of the riser stands directly affects the insulation performance and safe operation of the equipment. With the development of power equipment towards high voltage, large capacity and miniaturization, the shortcomings of traditional riser stands in terms of field strength optimization have become increasingly prominent.

[0003] However, in the existing technology, the internal structure of the traditional riser has defects in sharp corners and size matching. For example, the lead wire connectors and bolt heads are not rounded, and the cross-section of the riser is square, which leads to severe distortion of the electric field and excessively high local field strength peaks, causing tip discharge. Utility Model Content

[0004] The purpose of this invention is to solve the problems of sharp corners and size mismatch in the internal structure of traditional riser seats, such as the lack of rounded corners for lead wire connectors and bolt heads, and the square cross-section of the riser seat, which leads to severe electric field distortion and excessively high local field strength peaks causing tip discharge. Therefore, a new type of riser seat that can improve field strength is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel riser that can improve field strength, comprising a support sleeve, a connecting terminal assembly fixedly installed at the top end of the support sleeve, a splicing transition pipe fixedly connected at the bottom end of the support sleeve, a tail pipe fixedly connected at the bottom end of the splicing transition pipe, a flange fixedly connected at the tail end of the tail pipe, pipe clamps fixedly connected to the inner walls of both the support sleeve and the tail pipe, and multiple connecting sleeves installed on the outer wall of the pipe clamps.

[0006] Preferably, a limiting plate is fixedly connected to the bottom surface of the tailpipe, and a reinforcing support mechanism is installed on the outer wall of the limiting plate.

[0007] Preferably, the reinforcing support mechanism includes a bottom support rod, a lifting rod, and a slider, wherein the lifting rod is movably connected to the top surface of the bottom support rod, and the slider is fixedly connected to the top surface of the lifting rod.

[0008] Preferably, the outer wall of the slider is threaded with an adjusting bolt, and the slider is movably connected to the outer wall of the limiting plate.

[0009] Preferably, the bottom surface of the limiting plate is provided with multiple threaded holes, and the end of the adjusting bolt is threadedly connected to the threaded holes of the limiting plate.

[0010] Preferably, an electric cylinder is installed inside the bottom support rod.

[0011] Preferably, the top end of the telescopic rod of the electric cylinder is fixedly connected to the bottom surface of the lifting rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, through the insulating support of the supporting sleeve and the smooth transition design of the splicing transition tube, combined with the uniform arrangement of the connecting sleeve and the fixed limit of the pipe clamp, not only is the stable support, reliable conductivity and sealing protection of the riser seat achieved, but the internal electric field distribution is also improved more effectively. This avoids electric field distortion caused by structural abrupt changes and lead concentration, reduces the risk of insulation aging and partial discharge caused by excessive local field strength, and improves the safety and service life of the riser seat in high-voltage environments.

[0013] 2. In this utility model, by strengthening the synergistic effect of the support mechanism, the support rigidity and deformation resistance of the bottom of the riser seat are significantly improved, effectively offsetting the influence of bushing weight, operating vibration and external load on the riser seat, and avoiding stress concentration at the connection between the tail pipe and the flange; with the help of the electric cylinder driven lifting rod and movable slider, the support height and support position can be flexibly adjusted to adapt to different installation environments, equipment loads and foundation conditions, further ensuring the stability and reliability of the riser seat and the overall operation of the transformer, and reducing the risk of abnormal electric field distribution caused by structural deformation. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a novel lifting seat that can improve field strength is presented for this utility model. Figure 2 This utility model presents a schematic diagram of the internal structure of a novel riser that can improve field strength. Figure 3 This utility model presents a structural schematic diagram of a novel lifting seat reinforcement support mechanism that can improve field strength; Figure 4 This invention presents a schematic diagram of the internal structure of a novel lifting seat reinforcement support mechanism that can improve field strength.

[0015] Legend: 1. Support sleeve; 2. Tail pipe; 21. Flange; 22. Splicing transition pipe; 23. Limiting connecting plate; 3. Connecting terminal assembly; 4. Reinforcing support mechanism; 41. Bottom support rod; 42. Lifting rod; 43. Sliding block; 44. Adjusting bolt; 45. Electric cylinder; 5. Pipe clamp; 6. Connecting sleeve. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a novel riser that can improve field strength, including a support sleeve 1. A connecting terminal assembly 3 is fixedly installed at the top of the support sleeve 1. A splicing transition pipe 22 is fixedly connected to the bottom of the support sleeve 1. A tail pipe 2 is fixedly connected to the bottom of the splicing transition pipe 22. A flange 21 is fixedly connected to the tail end of the tail pipe 2. Pipe clamps 5 are fixedly connected to the inner walls of both the support sleeve 1 and the tail pipe 2. Multiple connecting sleeves 6 are installed on the outer wall of the pipe clamps 5.

[0019] The specific settings and functions of this embodiment are described below. The connecting terminal assembly 3 is used to achieve a precise conductive connection between the riser and the external line, ensuring the smoothness and stability of current transmission and reducing energy loss caused by contact resistance. By setting the splicing transition tube 22, the acute angle structure of the bottom end of the support sleeve 1 and the tail tube 2 is improved into an arc angle, realizing a smooth transition between the two, which improves the field strength distribution and ensures the creepage distance. The pipe clamp 5 adopts an elastic clamping structure, which plays a fixed and limiting role in fixing the connecting sleeve 6, preventing the connecting sleeve 6 from shifting due to electromagnetic force and oil flow impact during equipment operation, and ensuring the stability of the internal structure. There are multiple connecting sleeves 6 evenly distributed on the outer wall of the pipe clamp 5. They are made of high dielectric constant insulating material and are used to separate and protect the internal leads, avoiding insulation damage caused by mutual friction or close proximity of the leads. At the same time, its uniform arrangement structure can optimize the electric field distribution around the leads, reduce the local field strength peak, and reduce the risk of partial discharge.

[0020] Example 2: Figure 1 - Figure 4As shown, a limiting plate 23 is fixedly connected to the bottom surface of the tailpipe 2. A reinforcing support mechanism 4 is installed on the outer wall of the limiting plate 23. The reinforcing support mechanism 4 includes a bottom support rod 41, a lifting rod 42, and a slider 43. The lifting rod 42 is movably connected to the top surface of the bottom support rod 41. The slider 43 is fixedly connected to the top surface of the lifting rod 42. An adjusting bolt 44 is threadedly connected to the outer wall of the slider 43. The slider 43 is movably connected to the outer wall of the limiting plate 23. Multiple threaded holes are opened on the bottom surface of the limiting plate 23. The end of the adjusting bolt 44 is threadedly connected to the threaded hole of the limiting plate 23. An electric cylinder 45 is installed inside the bottom support rod 41. The top end of the telescopic rod of the electric cylinder 45 is fixedly connected to the bottom surface of the lifting rod 42.

[0021] The overall effect of this embodiment is that the limiting plate 23 provides an installation reference and movement guide for the reinforcing support mechanism 4. The multiple threaded holes on its bottom surface can cooperate with the adjusting bolts 44 to fix the slider 43 in multiple positions, improving the flexibility of the support position. The lifting rod 42 is movably connected to the top surface of the bottom support rod 41 through the lifting rod 42, and can achieve lifting and lowering movement under the drive of the electric cylinder 45, thereby adjusting the overall support height of the reinforcing support mechanism 4 to adapt to the support requirements of different installation scenarios. The slider 43 is sleeved on the outer wall of the limiting plate 23 and can move horizontally along the limiting plate 23 to adjust the support position of the reinforcing support mechanism 4. The adjusting bolts 44 on its outer wall can lock the slider 43 in the target position to ensure support stability. The end of the adjusting bolt 44 cooperates with the threaded hole of the limiting plate 23. By tightening the bolt, the slider 43 is fixed to the limiting plate 23 to prevent the support position from shifting.

[0022] The usage and working principle of this device are as follows: The support bushing 1 provides basic insulation, and the splicing transition pipe 22 avoids electric field concentration caused by structural abrupt changes; multiple connecting bushings 6 evenly separate the internal leads, optimize the electric field distribution around the leads, reduce local field strength peaks, reduce the risk of partial discharge, and ensure insulation reliability; the support bushing 1, tail pipe 2, and flange 21 constitute the main support system, bearing the weight of the bushing and internal components and achieving a sealed connection with the oil tank; in the reinforced support mechanism 4, the electric cylinder 45 drives the lifting rod 42 to adjust the support height, the slider 43 cooperates with the limiting connecting plate 23 to adjust the support position, and the bottom support rod 41 provides bottom support, enhancing the overall structure's resistance to deformation and resisting vibration and load impact; external current is transmitted into the lifting seat through the connecting terminal assembly 3, and then transmitted to the transformer winding through the internal leads. The high conductivity design of the connecting terminal assembly 3 ensures smooth current transmission and reduces energy loss.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A novel riser for improving field strength, comprising a support sleeve (1), characterized in that: A connecting terminal assembly (3) is fixedly installed at the top of the support sleeve (1), a splicing transition pipe (22) is fixedly connected at the bottom of the support sleeve (1), a tail pipe (2) is fixedly connected at the bottom of the splicing transition pipe (22), a flange (21) is fixedly connected at the tail end of the tail pipe (2), a pipe clamp (5) is fixedly connected to the inner wall of both the support sleeve (1) and the tail pipe (2), and multiple connecting sleeves (6) are installed on the outer wall of the pipe clamp (5).

2. The novel riser for improving field strength according to claim 1, characterized in that: The bottom surface of the tail tube (2) is fixedly connected to a limiting plate (23), and a reinforcing support mechanism (4) is installed on the outer wall of the limiting plate (23).

3. A novel riser for improving field strength according to claim 2, characterized in that: The reinforcing support mechanism (4) includes a bottom support rod (41), a lifting rod (42) and a slider (43). The lifting rod (42) is movably connected through the top surface of the bottom support rod (41), and the slider (43) is fixedly connected to the top surface of the lifting rod (42).

4. A novel riser for improving field strength according to claim 3, characterized in that: The outer wall of the slider (43) is threaded with an adjusting bolt (44), and the slider (43) is movably connected to the outer wall of the limiting plate (23).

5. A novel riser for improving field strength according to claim 4, characterized in that: The bottom surface of the limiting plate (23) is provided with multiple threaded holes, and the end of the adjusting bolt (44) is threadedly connected to the threaded holes of the limiting plate (23).

6. A novel riser for improving field strength according to claim 5, characterized in that: An electric cylinder (45) is installed inside the bottom support rod (41).

7. A novel riser for improving field strength according to claim 6, characterized in that: The top end of the telescopic rod of the electric cylinder (45) is fixedly connected to the bottom surface of the lifting rod (42).

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